1
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Zhao Z, Liu X, Dai W, Liu S, Liu M, Wu H, Huang X, Lei Y. Enhancing the Room-Temperature Phosphorescence Performance by Salinization of Guests. J Phys Chem Lett 2024:8093-8100. [PMID: 39087745 DOI: 10.1021/acs.jpclett.4c01786] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 08/02/2024]
Abstract
Although the host-guest doped strategy effectively improves the phosphorescence performance of materials and greatly enriches the variety of materials, most of the guests are organic molecules with weak luminescence ability, which leads to the need for further improvement in the phosphorescence performance of doped materials. Herein, by salinization of organic molecules, the luminescence performance of the guests was effectively improved, thereby significantly enhancing the phosphorescence performance of the doped system. A compound 4-(naphthalen-2-yl)quinoline (QL) containing nitrogen atom was synthesized as initial guest, then QL was salted to obtain six organic salt guests containing anions BF4-, PF6-, CF3SO3-, N(CF3SO2)2-, ClO4-, and C4F9SO3-, respectively. Two doped systems were constructed using benzophenone and poly(methyl methacrylate) as the hosts. The phosphorescence quantum yield and phosphorescence lifetime of doped materials with QL as guest were only 4.1%/5.2% and 131 ms/141 ms, while those of doped materials with salinized molecules as guests were improved to 32-39% and 534-625 ms, respectively. The single-crystal structures and theoretical calculations indicated that anions can not only enhance the intermolecular interaction of guests but also increase the spin-orbit coupling constant. This work provides an effective strategy for improving the phosphorescence performance of doped materials.
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Affiliation(s)
- Zhenwei Zhao
- School of Chemistry and Materials Engineering, Wenzhou University, Wenzhou 325035, P. R. China
| | - Xiaoqing Liu
- State Key Laboratory for Modification of Chemical Fibers and Polymer Materials, College of Materials Science and Engineering, Donghua University, Shanghai 201620, P. R. China
| | - Wenbo Dai
- School of Chemistry and Materials Engineering, Wenzhou University, Wenzhou 325035, P. R. China
- Key Lab of Biohealth Materials and Chemistry of Wenzhou, Wenzhou 325035, P. R. China
| | - Shengdi Liu
- School of Chemistry and Materials Engineering, Wenzhou University, Wenzhou 325035, P. R. China
| | - Miaochang Liu
- School of Chemistry and Materials Engineering, Wenzhou University, Wenzhou 325035, P. R. China
| | - Huayue Wu
- School of Chemistry and Materials Engineering, Wenzhou University, Wenzhou 325035, P. R. China
| | - Xiaobo Huang
- School of Chemistry and Materials Engineering, Wenzhou University, Wenzhou 325035, P. R. China
| | - Yunxiang Lei
- School of Chemistry and Materials Engineering, Wenzhou University, Wenzhou 325035, P. R. China
- Key Lab of Biohealth Materials and Chemistry of Wenzhou, Wenzhou 325035, P. R. China
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2
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Pajić M, Juribašić Kulcsár M. Solid-State Synthesis of B←N Adducts by the Amine-Facilitated Trimerization of the Phenylboronic Acid. Chemistry 2024; 30:e202400190. [PMID: 38334299 DOI: 10.1002/chem.202400190] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/17/2023] [Revised: 02/08/2024] [Accepted: 02/09/2024] [Indexed: 02/10/2024]
Abstract
Stable boroxine-amine adducts comprising dative B←N bond(s) were prepared by mechanochemically-induced reactions of phenylboronic acid (PBA) and amines (pyridine, DMAP, 1H-pyrazole, piperidine, DABCO, hexamethylenetetramine, or 4,4'-bipyridine). In-situ Raman monitoring, ex-situ PXRD and DFT calculations were used for product identification. Stoichiometry of the product (3 : 1, 3 : 2 or 6 : 1 adduct) was controlled by the amine structure and the molar ratio of the reactants. The 1 : 2 H-bonded assembly of PBA and 4,4'-bipyridine (bpy) was confirmed as an intermediate in the adduct formation for bpy. Competitive binding experiments indicated that the exchange of the amines in the 3 : 1 adducts follows the computed adduct stabilities that increase with the amine basicity. Following the DFT prediction, the first adduct with two different amines, DMAP and pip, bound to one boroxine moiety was isolated and structurally characterized. Results show that calculations can be used to predict possible and preferred product(s) and their spectral characteristics.
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Affiliation(s)
- Mario Pajić
- Division of Physical Chemistry, Ruđer Bošković Institute, Bijenička cesta 54, HR-10000, Zagreb, Croatia
| | - Marina Juribašić Kulcsár
- Division of Physical Chemistry, Ruđer Bošković Institute, Bijenička cesta 54, HR-10000, Zagreb, Croatia
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3
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Kawaguchi K, Sugawara N, Ito M, Kubo Y. Thermochromic Afterglow from Benzene-1,4-Diboronic Acid-Doped Co-crystals. Chemistry 2024; 30:e202303924. [PMID: 38179827 DOI: 10.1002/chem.202303924] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/25/2023] [Revised: 12/15/2023] [Accepted: 01/02/2024] [Indexed: 01/06/2024]
Abstract
The accurate thermosensing requires a minimum impact of autofluorescence and light scattering from the samples. In this study, we discovered that commercially available benzene-1,4-diboronic acid (BDBA) doped co-crystals with trimethylolpropane (TMP) exhibit excellent thermochromic dual phosphorescence properties over a wide temperature range from -132 to 40 °C, despite its simple structure that does not have any donor-acceptor linkage. The dual phosphorescence was consisted of monomeric benzene-1,4-diboronate (BDBA ester) and aggregation-stabilized species. With an increase in temperature, the emission intensity from the monomeric state significantly decreased, whereas that originating from the aggregated state remained almost constant owing to the difference in their thermal stabilities. Further investigation revealed that molecular distortions in singlet excited states enable efficient intersystem crossing, causing efficient phosphorescence from the monomeric state of BDBA ester.
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Affiliation(s)
- Kaede Kawaguchi
- Department of Applied Chemistry, Graduate School of Urban Environmental Sciences, Tokyo Metropolitan University, 1-1 Minami-Osawa, Hachioji-shi, Tokyo, 192-0397, Japan
| | - Natsumi Sugawara
- Department of Applied Chemistry, Graduate School of Urban Environmental Sciences, Tokyo Metropolitan University, 1-1 Minami-Osawa, Hachioji-shi, Tokyo, 192-0397, Japan
| | - Masato Ito
- Department of Applied Chemistry, Graduate School of Urban Environmental Sciences, Tokyo Metropolitan University, 1-1 Minami-Osawa, Hachioji-shi, Tokyo, 192-0397, Japan
| | - Yuji Kubo
- Department of Applied Chemistry, Graduate School of Urban Environmental Sciences, Tokyo Metropolitan University, 1-1 Minami-Osawa, Hachioji-shi, Tokyo, 192-0397, Japan
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4
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Guo H, Cao M, Liu R, Tian B, Liu S, Li J, Li S, Strehmel B, James TD, Chen Z. Photocured room temperature phosphorescent materials from lignosulfonate. Nat Commun 2024; 15:1590. [PMID: 38383517 PMCID: PMC10881523 DOI: 10.1038/s41467-024-45622-3] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/04/2023] [Accepted: 01/30/2024] [Indexed: 02/23/2024] Open
Abstract
Photocured room temperature phosphorescent (RTP) materials hold great potential for practical applications but are scarcely reported. Here, we develop photocured RTP materials (P-Lig) using a combination of lignosulfonate, acrylamide, and ionic liquid (1-ethyl-3-methylimidazolium bromide). With this design, lignosulfonate simultaneously serves as RTP chromophore and photoinitiator. Specifically, lignosulfonate in the ionic liquid generates radicals to polymerize the acrylamide upon UV irradiation. The resulting lignosulfonate is automatically confined in an as-formed crosslinked matrix to provide RTP. As such RTP with an emission lifetime of ~110 ms is observed from the confined lignosulfonate in P-Lig. Additionally, energy transfer occur between P-Lig and Rhodamine B (RhB), triggering red afterglow emission when P-Lig is in situ loaded with RhB (P-Lig/RhB). As a demonstration of potential applications, the P-Lig and P-Lig/RhB are used as photocured RTP coatings and RTP inks for fabricating 3D materials and for information encryption.
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Affiliation(s)
- Hongda Guo
- Key Laboratory of Bio-based Material Science & Technology, Northeast Forestry University, Ministry of Education, Harbin, 150040, China
| | - Mengnan Cao
- Key Laboratory of Bio-based Material Science & Technology, Northeast Forestry University, Ministry of Education, Harbin, 150040, China
| | - Ruixia Liu
- Key Laboratory of Bio-based Material Science & Technology, Northeast Forestry University, Ministry of Education, Harbin, 150040, China
| | - Bing Tian
- Key Laboratory of Bio-based Material Science & Technology, Northeast Forestry University, Ministry of Education, Harbin, 150040, China
| | - Shouxin Liu
- Key Laboratory of Bio-based Material Science & Technology, Northeast Forestry University, Ministry of Education, Harbin, 150040, China
| | - Jian Li
- Key Laboratory of Bio-based Material Science & Technology, Northeast Forestry University, Ministry of Education, Harbin, 150040, China
| | - Shujun Li
- Key Laboratory of Bio-based Material Science & Technology, Northeast Forestry University, Ministry of Education, Harbin, 150040, China
| | - Bernd Strehmel
- Department of Chemistry, Institute for Coatings and Surface Chemistry, Niederrhein University of Applied Sciences, Adlerstr. 1, D-47798, Krefeld, Germany
| | - Tony D James
- Department of Chemistry, University of Bath, BA2 7AY, Bath, UK.
- School of Chemistry and Chemical Engineering, Henan Normal University, Xinxiang, 453007, P. R. China.
| | - Zhijun Chen
- Key Laboratory of Bio-based Material Science & Technology, Northeast Forestry University, Ministry of Education, Harbin, 150040, China.
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5
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Iftikhar R, Khan FZ, Naeem N. Recent synthetic strategies of small heterocyclic organic molecules with optoelectronic applications: a review. Mol Divers 2024; 28:271-307. [PMID: 36609738 DOI: 10.1007/s11030-022-10597-0] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/19/2022] [Accepted: 12/31/2022] [Indexed: 01/09/2023]
Abstract
Over the past few years, there have been tremendous developments in the design and synthesis of organic optoelectronic materials with appealing applications in device fabrication of organic light-emitting diodes, superconductors, organic lasers, organic field-effect transistors, clean energy-producing organic solar cells, etc. There is an increasing demand for the synthesis of green, highly efficient organic optoelectronic materials to cope with the issue of efficiency roll-off in organic semiconductor-based devices. This review systematically summarized the recent progress in the design and synthesis of small organic molecules having promising optoelectronic properties for their potential applications in optoelectronic devices during the last 10-year range (2010-early 2021).
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Affiliation(s)
- Ramsha Iftikhar
- School of Chemistry, University of New South Wales, Sydney, 2055, Australia.
| | - Faiza Zahid Khan
- Faculty of Mathematics and Natural Sciences, Rheinische Friedrich-Wilhelms-Universität Bonn, Bonn, Germany
| | - Naila Naeem
- Department of Chemistry, University of Agriculture Faisalabad, Faisalabad, 38000, Pakistan
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6
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Zhu W, Wang L, Yang W, Chen Y, Liu Z, Li Y, Xue Y. Facile Synthesis and Multiple Application of Ultralong-Afterglow Room Temperature Phosphorescence Aggregate Carbon Dots from Simple Raw Materials. J Fluoresc 2023:10.1007/s10895-023-03462-2. [PMID: 37861967 DOI: 10.1007/s10895-023-03462-2] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/14/2023] [Accepted: 09/30/2023] [Indexed: 10/21/2023]
Abstract
Owing to the ultralong afterglow, room temperature decay phosphorescence nanomaterials have aroused enough attention. In the work, by simple one-pot solid-state thermal decomposition reaction, aggregate carbon dots (CDs) was prepared from trimesic and boric acid. Based on the intermolecular hydrogen bonds and intramolecular π-π stacking weak interaction from precursors, CDs was encapsulated in boron oxide matrix and formed aggregation. The aggregate state of CDs facilitated the triplet excited states (Tn), which could induce the room temperature decay phosphorescence properties. By careful investigation, under different excitation wavelengths at 254 and 365 nm, the aggregate CDs showed > 15 s and > 3 s room temperature phosphorescence emission in the naked eye, which was associated with 1516.12 ms and 718.62 ms lifetime respectively. And the aggregate CDs exhibited widespread application in encoding encryption, optical anti-counterfeiting and fingerprint identification etc. The interesting aggregate CDs revealed unexpected ultralong-afterglow room temperature decay phosphorescence properties and the work opened a window for constructing ultralong-afterglow room temperature decay phosphorescence aggregate CDs nanomaterials.
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Affiliation(s)
- Wenping Zhu
- College of Chemistry and Chemical Eningeering, Henan Key Laboratory of Rare Earth Functional Materials, International Joint Research Laboratory for Biomedical Nanomaterials of Henan, Zhoukou Normal University, 466001, Zhoukou, P. R. China
| | - Like Wang
- College of Chemistry and Chemical Eningeering, Henan Key Laboratory of Rare Earth Functional Materials, International Joint Research Laboratory for Biomedical Nanomaterials of Henan, Zhoukou Normal University, 466001, Zhoukou, P. R. China
| | - Weijie Yang
- College of Chemistry and Chemical Eningeering, Henan Key Laboratory of Rare Earth Functional Materials, International Joint Research Laboratory for Biomedical Nanomaterials of Henan, Zhoukou Normal University, 466001, Zhoukou, P. R. China
| | - Yahong Chen
- College of Chemistry and Chemical Eningeering, Henan Key Laboratory of Rare Earth Functional Materials, International Joint Research Laboratory for Biomedical Nanomaterials of Henan, Zhoukou Normal University, 466001, Zhoukou, P. R. China
| | - Zengchen Liu
- College of Chemistry and Chemical Eningeering, Henan Key Laboratory of Rare Earth Functional Materials, International Joint Research Laboratory for Biomedical Nanomaterials of Henan, Zhoukou Normal University, 466001, Zhoukou, P. R. China.
| | - Yanxia Li
- College of Chemistry and Chemical Eningeering, Henan Key Laboratory of Rare Earth Functional Materials, International Joint Research Laboratory for Biomedical Nanomaterials of Henan, Zhoukou Normal University, 466001, Zhoukou, P. R. China
| | - Yingying Xue
- College of Chemistry and Chemical Eningeering, Henan Key Laboratory of Rare Earth Functional Materials, International Joint Research Laboratory for Biomedical Nanomaterials of Henan, Zhoukou Normal University, 466001, Zhoukou, P. R. China
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7
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Lai J, Zhou B, Wang KZ, Yan D. Layered Double Hydroxide Nanosheets Boosting Red Long Afterglow via Highly Efficient Energy Transfer. J Phys Chem Lett 2023; 14:7165-7172. [PMID: 37540129 DOI: 10.1021/acs.jpclett.3c01442] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 08/05/2023]
Abstract
Room-temperature phosphorescent (RTP) based long-afterglow materials have shown broad application prospects in smart sensors, biological imaging, photodynamic therapy, and many others. However, the fabrication of red long-afterglow materials still faces a great challenge due to the competitive relationship between RTP efficiency and lifetime. In this work, we reported a series of layered double hydroxide (LDHs) nanosheets with red long-afterglow (quantum yield up to 42.35% and lifetime up to 256.77 ms) by taking advantage of the highly efficient triplet-triplet energy transfer from green phosphorescent LDHs to the red fluorescent dye rhodamine B (RhB, as a guest molecule). Specifically, the Zn-based LDHs@RhB composite (Zn-Al-LDH-4-CBBA@RhB) presents energy transfer efficiency as high as 95.18%, and the red long-afterglow could even be excited upon white-light irradiation. Benefiting from the time-resolved afterglow, the LDHs@RhB composites exhibit great potential in the fields of anticounterfeiting and information encryption.
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Affiliation(s)
- Jingyi Lai
- Beijing Key Laboratory of Energy Conversion and Storage Materials, and Key Laboratory of Radiopharmaceuticals, Ministry of Education, College of Chemistry, Beijing Normal University, Beijing 100875, P. R. China
| | - Bo Zhou
- Beijing Key Laboratory of Energy Conversion and Storage Materials, and Key Laboratory of Radiopharmaceuticals, Ministry of Education, College of Chemistry, Beijing Normal University, Beijing 100875, P. R. China
| | - Ke-Zhi Wang
- Beijing Key Laboratory of Energy Conversion and Storage Materials, and Key Laboratory of Radiopharmaceuticals, Ministry of Education, College of Chemistry, Beijing Normal University, Beijing 100875, P. R. China
| | - Dongpeng Yan
- Beijing Key Laboratory of Energy Conversion and Storage Materials, and Key Laboratory of Radiopharmaceuticals, Ministry of Education, College of Chemistry, Beijing Normal University, Beijing 100875, P. R. China
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8
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Jia Q, Yan X, Wang B, Li J, Xu W, Shen Z, Bo C, Li Y, Chen L. Construction of room temperature phosphorescent materials with ultralong lifetime by in-situ derivation strategy. Nat Commun 2023; 14:4164. [PMID: 37443149 DOI: 10.1038/s41467-023-39795-6] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/01/2023] [Accepted: 06/28/2023] [Indexed: 07/15/2023] Open
Abstract
Although room temperature phosphorescence (RTP) materials have been widely investigated, it is still a great challenge to improve the performance of RTP materials by promoting triplet exciton generation and stabilization. In this study, an in-situ derivation strategy was proposed to construct efficient RTP materials by in-situ deriving guest molecules and forming a rigid matrix during co-pyrolysis of guest molecules and urea. Characterizations and theoretical calculations revealed that the generated derivatives were beneficial for promoting intersystem crossing (ISC) to produce more triplet excitons, while rigid matrix could effectively suppress the non-radiative transition of triplet excitons. Thus, the in-situ derivation strategy was concluded to simultaneously promote the generation and stabilization of triplet excitons. With this method, the ultralong lifetime of RTP materials could reach up to 5.33 s and polychromatic RTP materials were easily achieved. Moreover, the potential applications of the RTP materials in reprocessing or editable anti-counterfeiting were successfully demonstrated.
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Affiliation(s)
- Qinglong Jia
- School of Chemical Engineering and Technology, Tianjin University, Tianjin, 300350, P. R. China
| | - Xilong Yan
- School of Chemical Engineering and Technology, Tianjin University, Tianjin, 300350, P. R. China
- Zhejiang Institute of Tianjin University, Shaoxing, 312300, P. R. China
- Tianjin Engineering Research Center of Functional Fine Chemicals, Tianjin, 300350, P. R. China
- Guangdong Laboratory of Chemistry and Fine Chemical Industry Jieyang Center, Guangdong Province, 522000, P. R. China
| | - Bowei Wang
- School of Chemical Engineering and Technology, Tianjin University, Tianjin, 300350, P. R. China.
- Zhejiang Institute of Tianjin University, Shaoxing, 312300, P. R. China.
- Tianjin Engineering Research Center of Functional Fine Chemicals, Tianjin, 300350, P. R. China.
- Guangdong Laboratory of Chemistry and Fine Chemical Industry Jieyang Center, Guangdong Province, 522000, P. R. China.
| | - Jiayi Li
- School of Chemical Engineering and Technology, Tianjin University, Tianjin, 300350, P. R. China
| | - Wensheng Xu
- School of Chemical Engineering and Technology, Tianjin University, Tianjin, 300350, P. R. China
| | - Zhuoyao Shen
- School of Chemical Engineering and Technology, Tianjin University, Tianjin, 300350, P. R. China
| | - Changchang Bo
- School of Chemical Engineering and Technology, Tianjin University, Tianjin, 300350, P. R. China
| | - Yang Li
- School of Chemical Engineering and Technology, Tianjin University, Tianjin, 300350, P. R. China
- Tianjin Engineering Research Center of Functional Fine Chemicals, Tianjin, 300350, P. R. China
- Guangdong Laboratory of Chemistry and Fine Chemical Industry Jieyang Center, Guangdong Province, 522000, P. R. China
| | - Ligong Chen
- School of Chemical Engineering and Technology, Tianjin University, Tianjin, 300350, P. R. China.
- Zhejiang Institute of Tianjin University, Shaoxing, 312300, P. R. China.
- Tianjin Engineering Research Center of Functional Fine Chemicals, Tianjin, 300350, P. R. China.
- Guangdong Laboratory of Chemistry and Fine Chemical Industry Jieyang Center, Guangdong Province, 522000, P. R. China.
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9
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Nie F, Wang KZ, Yan D. Supramolecular glasses with color-tunable circularly polarized afterglow through evaporation-induced self-assembly of chiral metal-organic complexes. Nat Commun 2023; 14:1654. [PMID: 36964159 PMCID: PMC10039082 DOI: 10.1038/s41467-023-37331-0] [Citation(s) in RCA: 39] [Impact Index Per Article: 39.0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/11/2022] [Accepted: 03/11/2023] [Indexed: 03/26/2023] Open
Abstract
The fabrication of chiral molecules into macroscopic systems has many valuable applications, especially in the fields of optical displays, data encryption, information storage, and so on. Here, we design and prepare a serious of supramolecular glasses (SGs) based on Zn-L-Histidine complexes, via an evaporation-induced self-assembly (EISA) strategy. Metal-ligand interactions between the zinc(II) ion and chiral L-Histidine endow the SGs with interesting circularly polarized afterglow (CPA). Multicolored CPA emissions from blue to red with dissymmetry factor as high as 9.5 × 10-3 and excited-state lifetime up to 356.7 ms are achieved under ambient conditions. Therefore, this work not only communicates the bulk SGs with wide-tunable afterglow and large circular polarization, but also provides an EISA method for the macroscopic self-assembly of chiral metal-organic hybrids toward photonic applications.
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Affiliation(s)
- Fei Nie
- Beijing Key Laboratory of Energy Conversion and Storage Materials, College of Chemistry, Key Laboratory of Radiopharmaceuticals, Ministry of Education, Beijing Normal University, Beijing, 100875, P. R. China
| | - Ke-Zhi Wang
- Beijing Key Laboratory of Energy Conversion and Storage Materials, College of Chemistry, Key Laboratory of Radiopharmaceuticals, Ministry of Education, Beijing Normal University, Beijing, 100875, P. R. China
| | - Dongpeng Yan
- Beijing Key Laboratory of Energy Conversion and Storage Materials, College of Chemistry, Key Laboratory of Radiopharmaceuticals, Ministry of Education, Beijing Normal University, Beijing, 100875, P. R. China.
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10
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Kawaguchi K, Ito M, Kubo Y. Chemometrics-assisted mechanism study of the room-temperature phosphorescence on nanoscopic boronate assemblies. Chem Commun (Camb) 2023; 59:3130-3133. [PMID: 36810643 DOI: 10.1039/d2cc07049a] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/16/2023]
Abstract
Boronate assemblies, derived from benzene-1,4-diboronic acid, showed room-temperature phosphorescence (RTP) in both the solid-state and dispersions, being quite sensitive to the preparation conditions. Our chemometrics-assisted quantitative structure-property relationship (QSPR) analysis between the nanostructure and RTP behavior of boronate assemblies led us not only to understand their RTP mechanism but also to predict the RTP properties of unknown assemblies from the PXRD patterns.
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Affiliation(s)
- Kaede Kawaguchi
- Department of Applied Chemistry for Environment, Graduate School of Urban Environmental Sciences, Tokyo Metropolitan University, 1-1 Minami-Osawa, Hachioji, Tokyo, 192-0397, Japan.
| | - Masato Ito
- Department of Applied Chemistry for Environment, Graduate School of Urban Environmental Sciences, Tokyo Metropolitan University, 1-1 Minami-Osawa, Hachioji, Tokyo, 192-0397, Japan.
| | - Yuji Kubo
- Department of Applied Chemistry for Environment, Graduate School of Urban Environmental Sciences, Tokyo Metropolitan University, 1-1 Minami-Osawa, Hachioji, Tokyo, 192-0397, Japan.
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11
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How temperature and hydrostatic pressure impact organic room temperature phosphorescence from H-aggregation of planar triarylboranes and the application in bioimaging. Sci China Chem 2023. [DOI: 10.1007/s11426-022-1469-2] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/10/2023]
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12
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Gu J, Li Z, Li Q. From single molecule to molecular aggregation science. Coord Chem Rev 2023. [DOI: 10.1016/j.ccr.2022.214872] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
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13
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Efficient room-temperature phosphorescence of covalent organic frameworks through covalent halogen doping. Nat Chem 2023; 15:83-90. [PMID: 36302870 DOI: 10.1038/s41557-022-01070-4] [Citation(s) in RCA: 29] [Impact Index Per Article: 29.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/12/2021] [Accepted: 09/21/2022] [Indexed: 01/14/2023]
Abstract
Organic room-temperature phosphorescence, a spin-forbidden radiative process, has emerged as an interesting but rare phenomenon with multiple potential applications in optoelectronic devices, biosensing and anticounterfeiting. Covalent organic frameworks (COFs) with accessible nanoscale porosity and precisely engineered topology can offer unique benefits in the design of phosphorescent materials, but these are presently unexplored. Here, we report an approach of covalent doping, whereby a COF is synthesized by copolymerization of halogenated and unsubstituted phenyldiboronic acids, allowing for random distribution of functionalized units at varying ratios, yielding highly phosphorescent COFs. Such controlled halogen doping enhances the intersystem crossing while minimizing triplet-triplet annihilation by diluting the phosphors. The rigidity of the COF suppresses vibrational relaxation and allows a high phosphorescence quantum yield (ΦPhos ≤ 29%) at room temperature. The permanent porosity of the COFs and the combination of the singlet and triplet emitting channels enable a highly efficient COF-based oxygen sensor, with an ultra-wide dynamic detection range (~103-10-5 torr of partial oxygen pressure).
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14
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Shi Y, Zeng Y, Kucheryavy P, Yin X, Zhang K, Meng G, Chen J, Zhu Q, Wang N, Zheng X, Jäkle F, Chen P. Dynamic B/N Lewis Pairs: Insights into the Structural Variations and Photochromism via Light-Induced Fluorescence to Phosphorescence Switching. Angew Chem Int Ed Engl 2022; 61:e202213615. [PMID: 36287039 DOI: 10.1002/anie.202213615] [Citation(s) in RCA: 12] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/15/2022] [Indexed: 11/18/2022]
Abstract
Ultralong afterglow emissions due to room-temperature phosphorescence (RTP) are of paramount importance in the advancement of smart sensors, bioimaging and light-emitting devices. We herein present an efficient approach to achieve rarely accessible phosphorescence of heavy atom-free organoboranes via photochemical switching of sterically tunable fluorescent Lewis pairs (LPs). LPs are widely applied in and well-known for their outstanding performance in catalysis and supramolecular soft materials but have not thus far been exploited to develop photo-responsive RTP materials. The intramolecular LP M1BNM not only shows a dynamic response to thermal treatment due to reversible N→B coordination but crystals of M1BNM also undergo rapid photochromic switching. As a result, unusual emission switching from short-lived fluorescence to long-lived phosphorescence (rad-M1BNM, τRTP =232 ms) is observed. The reported discoveries in the field of Lewis pairs chemistry offer important insights into their structural dynamics, while also pointing to new opportunities for photoactive materials with implications for fast responsive detectors.
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Affiliation(s)
- Yafei Shi
- Beijing Key Laboratory of Photoelectronic/Electrophotonic Conversion Materials, Key Laboratory of Cluster Science of the Ministry of Education, School of Chemistry and Chemical Engineering, Beijing Institute of Technology of China, Beijing, 102488, China
| | - Yi Zeng
- Beijing Key Laboratory of Photoelectronic/Electrophotonic Conversion Materials, Key Laboratory of Cluster Science of the Ministry of Education, School of Chemistry and Chemical Engineering, Beijing Institute of Technology of China, Beijing, 102488, China
| | - Pavel Kucheryavy
- Department of Chemistry, Rutgers University-Newark, 73 Warren Street, Newark, NJ 07102, USA
| | - Xiaodong Yin
- Beijing Key Laboratory of Photoelectronic/Electrophotonic Conversion Materials, Key Laboratory of Cluster Science of the Ministry of Education, School of Chemistry and Chemical Engineering, Beijing Institute of Technology of China, Beijing, 102488, China
| | - Kai Zhang
- Beijing Key Laboratory of Photoelectronic/Electrophotonic Conversion Materials, Key Laboratory of Cluster Science of the Ministry of Education, School of Chemistry and Chemical Engineering, Beijing Institute of Technology of China, Beijing, 102488, China
| | - Guoyun Meng
- Beijing Key Laboratory of Photoelectronic/Electrophotonic Conversion Materials, Key Laboratory of Cluster Science of the Ministry of Education, School of Chemistry and Chemical Engineering, Beijing Institute of Technology of China, Beijing, 102488, China
| | - Jinfa Chen
- Beijing Key Laboratory of Photoelectronic/Electrophotonic Conversion Materials, Key Laboratory of Cluster Science of the Ministry of Education, School of Chemistry and Chemical Engineering, Beijing Institute of Technology of China, Beijing, 102488, China
| | - Qian Zhu
- Beijing Key Laboratory of Photoelectronic/Electrophotonic Conversion Materials, Key Laboratory of Cluster Science of the Ministry of Education, School of Chemistry and Chemical Engineering, Beijing Institute of Technology of China, Beijing, 102488, China
| | - Nan Wang
- Beijing Key Laboratory of Photoelectronic/Electrophotonic Conversion Materials, Key Laboratory of Cluster Science of the Ministry of Education, School of Chemistry and Chemical Engineering, Beijing Institute of Technology of China, Beijing, 102488, China
| | - Xiaoyan Zheng
- Beijing Key Laboratory of Photoelectronic/Electrophotonic Conversion Materials, Key Laboratory of Cluster Science of the Ministry of Education, School of Chemistry and Chemical Engineering, Beijing Institute of Technology of China, Beijing, 102488, China
| | - Frieder Jäkle
- Department of Chemistry, Rutgers University-Newark, 73 Warren Street, Newark, NJ 07102, USA
| | - Pangkuan Chen
- Beijing Key Laboratory of Photoelectronic/Electrophotonic Conversion Materials, Key Laboratory of Cluster Science of the Ministry of Education, School of Chemistry and Chemical Engineering, Beijing Institute of Technology of China, Beijing, 102488, China
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15
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Bhandary S, Beliš M, Kaczmarek AM, Van Hecke K. Photomechanical Motions in Organoboron-Based Phosphorescent Molecular Crystals Driven by a Crystal-State [2 + 2] Cycloaddition Reaction. J Am Chem Soc 2022; 144:22051-22058. [PMID: 36417296 DOI: 10.1021/jacs.2c09285] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
Abstract
Photoluminescent molecular crystals integrated with the ability to transform light energy into macroscopic mechanical motions are a promising choice of materials for both actuating and photonic devices. However, such dynamic photomechanical effects, based on molecular organoboron compounds as well as phosphorescent crystalline materials, are not yet known. Here we present an intriguing example of photomechanical molecular single crystals of a newly synthesized organoboron containing Lewis acid-base molecular adduct (BN1, substituted triphenylboroxine and 1,2-di(4-pyridyl)ethylene) having a capsule shape molecular geometry. The single crystals of BN1 under UV light exhibit controllable rapid bending-shape recovery, delamination, violent splitting-jumping, and expanding features. The detailed structural investigation by single-crystal X-ray diffraction and 1H NMR spectroscopy reveals that the photosalient behavior of the BN1 single crystals is driven by a crystal-to-crystal [2 + 2] cycloaddition reaction, supported by four donor-acceptor type B←N bonds. The instant photomechanical reaction in the BN1 crystals occurs under UV on account of sudden release of stress associated with the strained molecular geometry, significant solid-state molecular movements (supramolecular change), and cleavage of half intermolecular B←N linkages to result in a complete photodimerized single-crystalline product via the existence of two other intermediate photoproducts. In addition, the BN1 crystals display short-lived room temperature phosphorescence, and the photodynamic events are accompanied by the enhancement of their phosphorescence intensity to yield the photoproduct. Interestingly, the molecular crystals of the final photoproduct polymerize at ambient conditions when recrystallized from the solution forming a 2D supramolecular crystalline polymer stabilized by the retention of all B←N coordination modes.
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Affiliation(s)
- Subhrajyoti Bhandary
- XStruct, Department of Chemistry, Ghent University, Krijgslaan 281, Building S3, B-9000 Ghent, Belgium
| | - Marek Beliš
- XStruct, Department of Chemistry, Ghent University, Krijgslaan 281, Building S3, B-9000 Ghent, Belgium
| | - Anna M Kaczmarek
- NanoSensing Group, Department of Chemistry, Ghent University, Krijgslaan 281, Building S3, B-9000 Ghent, Belgium
| | - Kristof Van Hecke
- XStruct, Department of Chemistry, Ghent University, Krijgslaan 281, Building S3, B-9000 Ghent, Belgium
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16
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Yang L, Zhang Q, Huang Y, Luo C, Quan Z, Li H, Sun S, Xu Y. A sequential dual-lock strategy for generation of room-temperature phosphorescence of boron doped carbon dots for dynamic anti-counterfeiting. J Colloid Interface Sci 2022; 632:129-139. [DOI: 10.1016/j.jcis.2022.11.062] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/11/2022] [Revised: 10/22/2022] [Accepted: 11/12/2022] [Indexed: 11/18/2022]
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17
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Yang Y, Jiang Z, Liu Y, Guan T, Zhang Q, Qin C, Jiang K, Liu Y. Transient Absorption Spectroscopy of a Carbazole-Based Room-Temperature Phosphorescent Molecule: Real-Time Monitoring of Singlet-Triplet Transitions. J Phys Chem Lett 2022; 13:9381-9389. [PMID: 36190283 DOI: 10.1021/acs.jpclett.2c02519] [Citation(s) in RCA: 8] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/16/2023]
Abstract
Real-time monitoring of singlet-triplet transitions is an effective tool for studying room-temperature phosphorescent molecules. For femtosecond transient absorption (TA) spectroscopy of a 2,6-di(9H-carbazol-9-yl) pyridine molecule in dimethyl sulfoxide (DMSO), the stimulated emission signal (380 nm) and the excited-state absorption signal (650 nm) reach their maximum intensity within 397 fs. Subsequently, the two signals decay with time and the triplet-triplet absorption (TTA) signal (400 nm) is enhanced synchronously, accompanied by an isosbestic point at 491 nm. These results confirm intersystem crossing (ISC) within 2.5 ns. Moreover, the TTA signal (400 nm) in nanosecond TA spectroscopy gradually disappeared, accompanied by a phosphorescence lifetime of 4.1 μs. As the solvent polarity decreases (DMSO > N,N-dimethylformamide > 1,4-dioxane > toluene), similar spectral dynamic processes are observed, while the durations of ISC processes and phosphorescence lifetimes are shortened. This combined femtosecond and nanosecond transient absorption spectroscopy study presents the ultrafast excited-state dynamics of organic phosphorescent molecules.
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Affiliation(s)
- Yonggang Yang
- Henan Key Laboratory of Infrared Materials & Spectrum Measures and Applications, School of Physics, School of Environment, Henan Normal University, 46# East of Construction Road, Xinxiang 453007, Henan, China
| | - Zhinan Jiang
- Henan Key Laboratory of Infrared Materials & Spectrum Measures and Applications, School of Physics, School of Environment, Henan Normal University, 46# East of Construction Road, Xinxiang 453007, Henan, China
| | - Yang Liu
- Henan Key Laboratory of Infrared Materials & Spectrum Measures and Applications, School of Physics, School of Environment, Henan Normal University, 46# East of Construction Road, Xinxiang 453007, Henan, China
| | - Tiantian Guan
- Henan Key Laboratory of Infrared Materials & Spectrum Measures and Applications, School of Physics, School of Environment, Henan Normal University, 46# East of Construction Road, Xinxiang 453007, Henan, China
| | - Qi Zhang
- Henan Key Laboratory of Infrared Materials & Spectrum Measures and Applications, School of Physics, School of Environment, Henan Normal University, 46# East of Construction Road, Xinxiang 453007, Henan, China
| | - Chaochao Qin
- Henan Key Laboratory of Infrared Materials & Spectrum Measures and Applications, School of Physics, School of Environment, Henan Normal University, 46# East of Construction Road, Xinxiang 453007, Henan, China
| | - Kai Jiang
- Henan Key Laboratory of Infrared Materials & Spectrum Measures and Applications, School of Physics, School of Environment, Henan Normal University, 46# East of Construction Road, Xinxiang 453007, Henan, China
| | - Yufang Liu
- Henan Key Laboratory of Infrared Materials & Spectrum Measures and Applications, School of Physics, School of Environment, Henan Normal University, 46# East of Construction Road, Xinxiang 453007, Henan, China
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18
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Zheng X, Huang Y, Lv W, Fan J, Ling Q, Lin Z. Nearly Unity Quantum Yield Persistent Room‐Temperature Phosphorescence from Heavy Atom‐Free Rigid Inorganic/Organic Hybrid Frameworks. Angew Chem Int Ed Engl 2022; 61:e202207104. [DOI: 10.1002/anie.202207104] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/14/2022] [Indexed: 11/08/2022]
Affiliation(s)
- Xin Zheng
- Fujian Key Laboratory of Polymer Materials College of Chemistry and Materials Science Fujian Normal University Fuzhou 350007 China
| | - Yuanshan Huang
- Fujian Key Laboratory of Polymer Materials College of Chemistry and Materials Science Fujian Normal University Fuzhou 350007 China
| | - Wei Lv
- Fujian Key Laboratory of Polymer Materials College of Chemistry and Materials Science Fujian Normal University Fuzhou 350007 China
| | - Jianzhong Fan
- Shandong Province Key Laboratory of Medical Physics and Image Processing Technology, School of Physics and Electronics Shandong Normal University Jinan 250014 China
| | - Qidan Ling
- Fujian Provincial Key Laboratory of Advanced Materials Oriented Chemical Engineering Fuzhou 350007 China
| | - Zhenghuan Lin
- Fujian Key Laboratory of Polymer Materials College of Chemistry and Materials Science Fujian Normal University Fuzhou 350007 China
- Fujian Provincial Key Laboratory of Advanced Materials Oriented Chemical Engineering Fuzhou 350007 China
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19
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Zheng X, Huang Y, Lv W, Fan J, Ling Q, Lin Z. Nearly Unity Quantum Yield Persistent Room‐Temperature Phosphorescence from Heavy Atom‐Free Rigid Inorganic/Organic Hybrid Frameworks. Angew Chem Int Ed Engl 2022. [DOI: 10.1002/ange.202207104] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
Affiliation(s)
- Xin Zheng
- Fujian Key Laboratory of Polymer Materials College of Chemistry and Materials Science Fujian Normal University Fuzhou 350007 China
| | - Yuanshan Huang
- Fujian Key Laboratory of Polymer Materials College of Chemistry and Materials Science Fujian Normal University Fuzhou 350007 China
| | - Wei Lv
- Fujian Key Laboratory of Polymer Materials College of Chemistry and Materials Science Fujian Normal University Fuzhou 350007 China
| | - Jianzhong Fan
- Shandong Province Key Laboratory of Medical Physics and Image Processing Technology, School of Physics and Electronics Shandong Normal University Jinan 250014 China
| | - Qidan Ling
- Fujian Provincial Key Laboratory of Advanced Materials Oriented Chemical Engineering Fuzhou 350007 China
| | - Zhenghuan Lin
- Fujian Key Laboratory of Polymer Materials College of Chemistry and Materials Science Fujian Normal University Fuzhou 350007 China
- Fujian Provincial Key Laboratory of Advanced Materials Oriented Chemical Engineering Fuzhou 350007 China
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20
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Chen J, Chen X, Cao L, Deng H, Chi Z, Liu B. Synergistic Generation and Accumulation of Triplet Excitons for Efficient Ultralong Organic Phosphorescence. Angew Chem Int Ed Engl 2022; 61:e202200343. [PMID: 35355396 DOI: 10.1002/anie.202200343] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/08/2022] [Indexed: 11/10/2022]
Abstract
The traditional method to achieve ultralong organic phosphorescence (UOP) is to hybrid nπ* and ππ* configurations in appropriate proportion, which are contradictory to each other for improving efficiency and lifetime of phosphorescence. In this work, through replacing the electron-donating aromatic group with a methoxy group and combining intramolecular halogen bond to promote intersystem crossing and suppress non-radiative transition, an efficient UOP molecule (2Br-OSPh) has been synthesized with the longest lifetime and brightest UOP among its isomers. As compared to CzS2Br, which has a similar substituted position of bromine atom and a larger kisc (the rate of intersystem crossing), the smaller ΔETT* (the energy gap between monomeric phosphorescence and aggregated state phosphorescence) in 2Br-OSPh could accelerate the transition from T1 to T1 *. This research indicates that both generation and accumulation of triplet excitons play an important role in realizing efficient UOP materials.
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Affiliation(s)
- Junru Chen
- Department of Chemical and Biomolecular Engineering, National University of Singapore, Singapore
| | - Xiaojie Chen
- School of Chemistry, Sun Yat-sen University, Guangzhou, China
| | - Lei Cao
- Department of Chemical and Biomolecular Engineering, National University of Singapore, Singapore.,Joint School of National University of Singapore and Tianjin University, International Campus of Tianjin University, Fuzhou, China
| | - Huangjun Deng
- School of Chemistry, Sun Yat-sen University, Guangzhou, China
| | - Zhenguo Chi
- School of Chemistry, Sun Yat-sen University, Guangzhou, China
| | - Bin Liu
- Department of Chemical and Biomolecular Engineering, National University of Singapore, Singapore.,Joint School of National University of Singapore and Tianjin University, International Campus of Tianjin University, Fuzhou, China
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21
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Huang A, Li Q, Li Z. Molecular Uniting Set Identified Characteristic (
MUSIC
) of Organic Optoelectronic Materials. CHINESE J CHEM 2022. [DOI: 10.1002/cjoc.202100843] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Affiliation(s)
- Arui Huang
- Hubei Key Lab on Organic and Polymeric Opto‐Electronic Materials, Sauvage Center for Molecular Sciences, Department of Chemistry, Wuhan University Wuhan 430072 China
| | - Qianqian Li
- Hubei Key Lab on Organic and Polymeric Opto‐Electronic Materials, Sauvage Center for Molecular Sciences, Department of Chemistry, Wuhan University Wuhan 430072 China
| | - Zhen Li
- Hubei Key Lab on Organic and Polymeric Opto‐Electronic Materials, Sauvage Center for Molecular Sciences, Department of Chemistry, Wuhan University Wuhan 430072 China
- Institute of Molecular Aggregation Science, Tianjin University Tianjin 300072 China
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22
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Four-Coordinate Monoboron Complexes with 8-Hydroxyquinolin-5-Sulfonate: Synthesis, Crystal Structures, Theoretical Studies, and Luminescence Properties. CRYSTALS 2022. [DOI: 10.3390/cryst12060783] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 02/01/2023]
Abstract
8-Hydroxyquinolin-5-sulfonic acid (8HQSA) was combined with 3-pyridineboronic acid (3PBA) or 4-pyridineboronic acid (4PBA) to give two zwitterionic monoboron complexes in crystalline form. The compounds were characterized by elemental analysis, single-crystal X-ray diffraction studies, and IR, 1H NMR, UV-Visible, and luminescence spectroscopy. The analyses revealed compounds with boron atoms adopting tetrahedral geometry. In the solid state, the molecular components are linked by charge-assisted (B)(O-H···−O(S) and N+-H···O(S) hydrogen bonds aside from C-H···O contacts and π···π interactions, as shown by Hirshfeld surface analyses and 2D fingerprint plots. The luminescence properties were characterized in terms of the emission behavior in solution and the solid state, showing emission in the bluish-green region in solution and large positive solvatofluorochromism, caused by intramolecular charge transfer. According to TD-DFT calculations at the M06-2X/6-31G(d) level of theory simulating an ethanol solvent environment, the emission properties are originated from π-π * and n-π * HOMO-LUMO transitions.
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23
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Jena S, Eyyathiyil J, Behera SK, Kitahara M, Imai Y, Thilagar P. Crystallization induced room-temperature phosphorescence and chiral photoluminescence properties of phosphoramides. Chem Sci 2022; 13:5893-5901. [PMID: 35685799 PMCID: PMC9132070 DOI: 10.1039/d2sc00990k] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/16/2022] [Accepted: 04/06/2022] [Indexed: 11/21/2022] Open
Abstract
We report the design and synthesis of a series of room temperature phosphorescent phosphoramides TPTZPO, TPTZPS, and TPTZPSe with a donor (phenothiazine)-acceptor (P = X, X = O, S, and Se) architecture. All the compounds show structureless fluorescence with a nanosecond lifetime in dilute solutions. However, these compounds show dual fluorescence and room temperature phosphorescence (RTP) in the solid state. Both the intensity and energy of luminescence depend on the heteroatom attached to the phosphorus center. For example, compound TPTZPO with the P[double bond, length as m-dash]O unit exhibits fluorescence at a higher energy region than TPTZPS and TPTZPSe with the P[double bond, length as m-dash]S and P[double bond, length as m-dash]Se groups, respectively. Crystalline samples of TPTZPO, TPTZPS, and TPTZPSe show stronger RTP than the amorphous powder of respective compounds. Detailed steady-state, time-resolved photoluminescence and computational studies established that the 3n-π* state dominated by the phenothiazine moiety is the emissive state of these compounds. Although TPTZPS and TPTZPSe crystallized in the chiral space group, only TPTZPSe showed chiroptical properties in the solid state. The luminescence dissymmetry factor (g lum) value of TPTZPS is small and below the detection limit, and a CPL spectrum could not be observed for this compound.
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Affiliation(s)
- Satyam Jena
- Department of Inorganic and Physical Chemistry, Indian Institute of Science Bangalore India - 560012
| | - Jusaina Eyyathiyil
- Department of Inorganic and Physical Chemistry, Indian Institute of Science Bangalore India - 560012
| | - Santosh Kumar Behera
- Department of Inorganic and Physical Chemistry, Indian Institute of Science Bangalore India - 560012
| | - Maho Kitahara
- Department of Applied Chemistry, Faculty of Science and Engineering, Kindai University 3-4-1 Kowakae, Higashi-Osaka Osaka 577-8502 Japan
| | - Yoshitane Imai
- Department of Applied Chemistry, Faculty of Science and Engineering, Kindai University 3-4-1 Kowakae, Higashi-Osaka Osaka 577-8502 Japan
| | - Pakkirisamy Thilagar
- Department of Inorganic and Physical Chemistry, Indian Institute of Science Bangalore India - 560012
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24
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Wu Z, Dinkelbach F, Kerner F, Friedrich A, Ji L, Stepanenko V, Würthner F, Marian CM, Marder TB. Aggregation‐Induced Dual Phosphorescence from (
o
‐Bromophenyl)‐Bis(2,6‐Dimethylphenyl)Borane at Room Temperature. Chemistry 2022; 28:e202200525. [PMID: 35324026 PMCID: PMC9325438 DOI: 10.1002/chem.202200525] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/17/2022] [Indexed: 11/09/2022]
Abstract
Designing highly efficient purely organic phosphors at room temperature remains a challenge because of fast non‐radiative processes and slow intersystem crossing (ISC) rates. The majority of them emit only single component phosphorescence. Herein, we have prepared 3 isomers (o, m, p‐bromophenyl)‐bis(2,6‐dimethylphenyl)boranes. Among the 3 isomers (o‐, m‐ and p‐BrTAB) synthesized, the ortho‐one is the only one which shows dual phosphorescence, with a short lifetime of 0.8 ms and a long lifetime of 234 ms in the crystalline state at room temperature. Based on theoretical calculations and crystal structure analysis of o‐BrTAB, the short lifetime component is ascribed to the T1M state of the monomer which emits the higher energy phosphorescence. The long‐lived, lower energy phosphorescence emission is attributed to the T1A state of an aggregate, with multiple intermolecular interactions existing in crystalline o‐BrTAB inhibiting nonradiative decay and stabilizing the triplet states efficiently.
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Affiliation(s)
- Zhu Wu
- Institut für Anorganische Chemie and Institute for Sustainable Chemistry & Catalysis with Boron Julius-Maximilians-Universität Würzburg Am Hubland 97074 Würzburg Germany
| | - Fabian Dinkelbach
- Institut für Theoretische Chemie und Computerchemie Heinrich-Heine-Universität Düsseldorf Universitätsstr. 1 40225 Düsseldorf Germany
| | - Florian Kerner
- Institut für Anorganische Chemie and Institute for Sustainable Chemistry & Catalysis with Boron Julius-Maximilians-Universität Würzburg Am Hubland 97074 Würzburg Germany
| | - Alexandra Friedrich
- Institut für Anorganische Chemie and Institute for Sustainable Chemistry & Catalysis with Boron Julius-Maximilians-Universität Würzburg Am Hubland 97074 Würzburg Germany
| | - Lei Ji
- Institut für Anorganische Chemie and Institute for Sustainable Chemistry & Catalysis with Boron Julius-Maximilians-Universität Würzburg Am Hubland 97074 Würzburg Germany
- Frontiers Science Center for Flexible Electronics (FSCFE) & Shaanxi Institute of Flexible Electronics (SIFE) Northwestern Polytechnical University Xi An Shi 127 West Youyi Road 710072 Xi'an P. R. China
| | - Vladimir Stepanenko
- Institut für Organische Chemie and Center for Nanosystems Chemistry Julius-Maximilians-Universität Würzburg Am Hubland 97074 Würzburg Germany
| | - Frank Würthner
- Institut für Organische Chemie and Center for Nanosystems Chemistry Julius-Maximilians-Universität Würzburg Am Hubland 97074 Würzburg Germany
| | - Christel M. Marian
- Institut für Theoretische Chemie und Computerchemie Heinrich-Heine-Universität Düsseldorf Universitätsstr. 1 40225 Düsseldorf Germany
| | - Todd B. Marder
- Institut für Anorganische Chemie and Institute for Sustainable Chemistry & Catalysis with Boron Julius-Maximilians-Universität Würzburg Am Hubland 97074 Würzburg Germany
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25
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Zhang Y, Xu X, Liao Q, Wang Q, Han Q, Chen P, Xi K. New potential of boron-based COFs: the biocompatible COF-1 for reactive oxygen generation and antimicrobial applications. J Mater Chem B 2022; 10:3285-3292. [PMID: 35377374 DOI: 10.1039/d1tb02808a] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/08/2023]
Abstract
Photocatalytic covalent organic frameworks (COFs) are popular in the field of biomedical materials and also have potential as antimicrobial materials. Herein, a boron-based COF was used in antibacterial applications innovatively. The results of this study suggested that COF-1, the earliest boroxine COF, could produce a variety of reactive oxygen species (ROS) under visible light irradiation. In order to explore more applications of COF-1, antibacterial tests were carried out based on the above results. The test results showed that the material displayed an obvious bactericidal effect on Escherichia coli (E. coli) and Staphylococcus aureus (S. aureus) by releasing ROS under white light. According to the results of plate coating, all bacteria died after co-cultivation with COF-1 under white light for about 120 minutes. In a word, this study could provide a new idea for the application of boron-based COFs as multifunctional photocatalysts in future.
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Affiliation(s)
- Yiying Zhang
- School of Chemistry and Chemical Engineering, Nanjing University, Jiangsu 210023, China.
| | - Xiaoqing Xu
- School of Chemistry and Chemical Engineering, Anhui University, Hefei, 230601, China.
| | - Qiaobo Liao
- School of Chemistry and Chemical Engineering, Nanjing University, Jiangsu 210023, China.
| | - Qiaomu Wang
- School of Chemistry and Chemical Engineering, Nanjing University, Jiangsu 210023, China.
| | - Qingwen Han
- School of Chemistry and Chemical Engineering, Nanjing University, Jiangsu 210023, China.
| | - Pengpeng Chen
- School of Chemistry and Chemical Engineering, Anhui University, Hefei, 230601, China.
| | - Kai Xi
- School of Chemistry and Chemical Engineering, Nanjing University, Jiangsu 210023, China.
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26
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Fan Y, Liu S, Wu M, Xiao L, Fan Y, Han M, Chang K, Zhang Y, Zhen X, Li Q, Li Z. Mobile Phone Flashlight-Excited Red Afterglow Bioimaging. ADVANCED MATERIALS (DEERFIELD BEACH, FLA.) 2022; 34:e2201280. [PMID: 35261081 DOI: 10.1002/adma.202201280] [Citation(s) in RCA: 40] [Impact Index Per Article: 20.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/08/2022] [Indexed: 06/14/2023]
Abstract
Organic room temperature phosphorescence (RTP) materials with ultralong lifetime possess the remarkable advantage in bioimaging for elimination of background noise by characteristic time scale. However, most of RTP luminogens need to be excited by the harmful ultraviolet (UV) lamp, and exhibit green or yellow emission with shallow tissue penetration, constraining the in vivo bioimaging for further application in clinical diagnosis and pathological study. In this text, the much safer excitation process by sunlight and mobile phone flashlight is realized by organic luminogens with various electronic pull-push systems. Moreover, the bright red RTP emission with lifetime up to 344 ms is achieved by optimizing molecular geometry and electronic property. Especially, the mobile phone flashlight-excited red afterglow imaging of lymph nodes in living mice has been realized for the first time, affording a safe and conventional approach to achieve the afterglow imaging of living mice with deep issue penetration and high signal-to-noise ratios.
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Affiliation(s)
- Yuanyuan Fan
- Hubei Key Lab on Organic and Polymeric Opto-Electronic Materials, Sauvage Center for Molecular Sciences, Department of Chemistry, Wuhan University, Wuhan, 430072, China
| | - Siwei Liu
- Hubei Key Lab on Organic and Polymeric Opto-Electronic Materials, Sauvage Center for Molecular Sciences, Department of Chemistry, Wuhan University, Wuhan, 430072, China
| | - Min Wu
- College of Chemistry & Chemical Engineering, Nanjing University, Nanjing, 210093, China
| | - Leyi Xiao
- School and Hospital of Stomatology, Wuhan University, Wuhan, 430079, China
| | - Yunhao Fan
- Hubei Key Lab on Organic and Polymeric Opto-Electronic Materials, Sauvage Center for Molecular Sciences, Department of Chemistry, Wuhan University, Wuhan, 430072, China
| | - Mengmeng Han
- Hubei Key Lab on Organic and Polymeric Opto-Electronic Materials, Sauvage Center for Molecular Sciences, Department of Chemistry, Wuhan University, Wuhan, 430072, China
| | - Kai Chang
- Hubei Key Lab on Organic and Polymeric Opto-Electronic Materials, Sauvage Center for Molecular Sciences, Department of Chemistry, Wuhan University, Wuhan, 430072, China
| | - Yufeng Zhang
- School and Hospital of Stomatology, Wuhan University, Wuhan, 430079, China
| | - Xu Zhen
- College of Chemistry & Chemical Engineering, Nanjing University, Nanjing, 210093, China
| | - Qianqian Li
- Hubei Key Lab on Organic and Polymeric Opto-Electronic Materials, Sauvage Center for Molecular Sciences, Department of Chemistry, Wuhan University, Wuhan, 430072, China
| | - Zhen Li
- Hubei Key Lab on Organic and Polymeric Opto-Electronic Materials, Sauvage Center for Molecular Sciences, Department of Chemistry, Wuhan University, Wuhan, 430072, China
- Institute of Molecular Aggregation Science, Tianjin University, Tianjin, 300072, China
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27
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Green Synthesis of Phosphorescent Carbon Dots for Anticounterfeiting and Information Encryption. SENSORS 2022; 22:s22082944. [PMID: 35458926 PMCID: PMC9026503 DOI: 10.3390/s22082944] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 03/04/2022] [Revised: 03/30/2022] [Accepted: 04/02/2022] [Indexed: 02/04/2023]
Abstract
Room-temperature phosphorescent (RTP) carbon dots (CDs) have promising applications in bioimaging, anticounterfeiting, and information encryption owing to their long lifetimes and wide Stokes shifts. Numerous researchers are interested in developing highly bright RTP CDs using environmentally friendly and safe synthesis processes (e.g., natural raw materials and zero-pollution production pathways). In this study, we successfully synthesized RTP CDs using a hydrothermal process employing natural vitamins as a raw material, ethylenediamine as a passivator, and boric acid as a phosphorescent enhancer, which is referred to as phosphorescent CD (PCD). The PCDs exhibit both bright blue fluorescence emission and green RTP emission, with a phosphorescence lifetime as long as 293 ms and an excellent green afterglow visible to the naked eye for up to 7.0 s. The total quantum yield is 12.69%. The phosphorescence quantum yield (PQY) is up to 5.15%. Based on the RTP performance, PCDs have been successfully employed for anticounterfeiting and information protection applications. The results of this study provide a green strategy for the scalable synthesis of RTP materials, which is a practical method for the fabrication of RTP materials with high efficiency and long afterglow lifetimes.
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28
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Room temperature phosphorescence achieved by aromatic/perfluoroaromatic interactions. Sci China Chem 2022. [DOI: 10.1007/s11426-021-1229-4] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
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29
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Kim JM, Bak JM, Lim B, Jung YJ, Park BC, Park MJ, Park JM, Lee HI, Jung SH. Background color dependent photonic multilayer films for anti-counterfeiting labeling. NANOSCALE 2022; 14:5377-5383. [PMID: 35319042 DOI: 10.1039/d1nr08482h] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/14/2023]
Abstract
A new concept for anti-counterfeiting security films that utilize the humidity from human breath to reveal a QR code on color-tunable one-dimensional (1D) PC films is presented. The 1D PC film was fabricated on a transparent polyethylene terephthalate (PET) substrate via sequential alternate layer deposition of photo-crosslinkable poly(2-vinylnaphthalene-co-benzophenone acrylate) (P(2VN-co-BPA)) and quaternized poly(4-vinylpyridine-co-benzophenone acrylate) (P(4VP-co-BPA)) (P4QP-51%). The films exhibited remarkable color transitions with reliable reversibility and reproducibility. Films placed on a black background exhibited the full visible spectrum color in a high humidity environment. Additionally, films placed on a white background displayed three different composite colors, including yellow, magenta, and cyan. These films with vivid color transitions in a high humidity environment can be applied as anti-counterfeiting films. A hidden QR code was also laser printed on the initial PC film to enhance the film's anti-counterfeiting security capabilities. These colorimetric 1D PC films can be used as anti-counterfeiting labels and for information storage.
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Affiliation(s)
- Jeong Min Kim
- Center for Advanced Specialty Chemicals, Korea Research Institute of Chemical Technology (KRICT), 45, Jongga-ro, Jung-gu, Ulsan, 44429, Republic of Korea.
| | - Jae Min Bak
- Department of Chemistry, University of Ulsan, 12, Techno saneop-ro 55beon-gil, Nam-gu, Ulsan, 44776, Republic of Korea.
| | - Bogyu Lim
- Center for Advanced Specialty Chemicals, Korea Research Institute of Chemical Technology (KRICT), 45, Jongga-ro, Jung-gu, Ulsan, 44429, Republic of Korea.
| | - Yu Jin Jung
- Center for Advanced Specialty Chemicals, Korea Research Institute of Chemical Technology (KRICT), 45, Jongga-ro, Jung-gu, Ulsan, 44429, Republic of Korea.
| | - Byong Chon Park
- Korea Research Institute of Standards and Science, 267 Gajeong-ro, Yuseong-gu, Daejeon, 34113, Republic of Korea
| | - Min Ji Park
- Center for Advanced Specialty Chemicals, Korea Research Institute of Chemical Technology (KRICT), 45, Jongga-ro, Jung-gu, Ulsan, 44429, Republic of Korea.
| | - Jong Mok Park
- Center for Advanced Specialty Chemicals, Korea Research Institute of Chemical Technology (KRICT), 45, Jongga-ro, Jung-gu, Ulsan, 44429, Republic of Korea.
| | - Hyung-Il Lee
- Department of Chemistry, University of Ulsan, 12, Techno saneop-ro 55beon-gil, Nam-gu, Ulsan, 44776, Republic of Korea.
| | - Seo-Hyun Jung
- Center for Advanced Specialty Chemicals, Korea Research Institute of Chemical Technology (KRICT), 45, Jongga-ro, Jung-gu, Ulsan, 44429, Republic of Korea.
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30
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Chen J, Chen X, Cao L, Deng H, Chi Z, Liu B. Synergistic Generation and Accumulation of Triplet Excitons for Efficient Ultralong Organic Phosphorescence. Angew Chem Int Ed Engl 2022. [DOI: 10.1002/ange.202200343] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Affiliation(s)
- Junru Chen
- National University of Singapore Department of Chemical and Biomolecular Engineering SINGAPORE
| | - Xiaojie Chen
- Sun Yat-Sen University School of Chemistry and Chemical Engineering CHINA
| | - Lei Cao
- National University of Singapore Chemical and Biomolecular Engineering SINGAPORE
| | - Huangjun Deng
- Sun Yat-Sen University School of Chemistry and Chemical Engineering CHINA
| | - Zhenguo Chi
- Sun Yat-Sen University School of Chemistry and Chemical Engineering CHINA
| | - Bin Liu
- National University of Singapore Department of Chemical and Biomolecular Engineering 4 Engineering Drive 4National University of Singapore 117585 Singapore SINGAPORE
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31
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Zhang X, Cheng Y, You J, Zhang J, Yin C, Zhang J. Ultralong phosphorescence cellulose with excellent anti-bacterial, water-resistant and ease-to-process performance. Nat Commun 2022; 13:1117. [PMID: 35236853 PMCID: PMC8891296 DOI: 10.1038/s41467-022-28759-x] [Citation(s) in RCA: 39] [Impact Index Per Article: 19.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/28/2021] [Accepted: 02/04/2022] [Indexed: 01/27/2023] Open
Abstract
Herein, we present a phosphorescent cationized cellulose derivative by simply introducing ionic structures, including cyanomethylimidazolium cations and chloride anions, into cellulose chains. The imidazolium cations with the cyano group and nitrogen element promote intersystem crossing. The cyano-containing cations, chloride anions and hydroxyl groups of cellulose form multiple hydrogen bonding interactions and electrostatic attraction interactions, effectively inhibiting the non-radiative transitions. The resultant cellulose-based RTP material is easily processed into phosphorescent films, fibers, coatings and patterns by using eco-friendly aqueous solution processing strategies. Furthermore, after we construct a cross-linking structure by adding a small amount of glutaraldehyde as the cross-linking agent, the as-fabricated phosphorescent patterns exhibit excellent antibacterial properties and water resistance. Therefore, considering the outstanding biodegradability and sustainability of cellulose materials, cellulose-based easy-to-process RTP materials can act as antibacterial, water-resistant, and eco-friendly phosphorescent patterns, coatings and bulk materials, which have enormous potential in advanced anti-counterfeiting, information encryption, disposable smart labels, etc.
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Affiliation(s)
- Xin Zhang
- CAS Key Laboratory of Engineering Plastics, CAS Research/Education Center for Excellence in Molecular Sciences, Institute of Chemistry, Chinese Academy of Sciences (CAS), 100190, Beijing, China.,University of Chinese Academy of Sciences, 100049, Beijing, China
| | - Yaohui Cheng
- CAS Key Laboratory of Engineering Plastics, CAS Research/Education Center for Excellence in Molecular Sciences, Institute of Chemistry, Chinese Academy of Sciences (CAS), 100190, Beijing, China.,University of Chinese Academy of Sciences, 100049, Beijing, China
| | - Jingxuan You
- CAS Key Laboratory of Engineering Plastics, CAS Research/Education Center for Excellence in Molecular Sciences, Institute of Chemistry, Chinese Academy of Sciences (CAS), 100190, Beijing, China.,University of Chinese Academy of Sciences, 100049, Beijing, China
| | - Jinming Zhang
- CAS Key Laboratory of Engineering Plastics, CAS Research/Education Center for Excellence in Molecular Sciences, Institute of Chemistry, Chinese Academy of Sciences (CAS), 100190, Beijing, China.
| | - Chunchun Yin
- CAS Key Laboratory of Engineering Plastics, CAS Research/Education Center for Excellence in Molecular Sciences, Institute of Chemistry, Chinese Academy of Sciences (CAS), 100190, Beijing, China.,University of Chinese Academy of Sciences, 100049, Beijing, China
| | - Jun Zhang
- CAS Key Laboratory of Engineering Plastics, CAS Research/Education Center for Excellence in Molecular Sciences, Institute of Chemistry, Chinese Academy of Sciences (CAS), 100190, Beijing, China. .,University of Chinese Academy of Sciences, 100049, Beijing, China.
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32
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Acharya N, Dey S, Deka R, Ray D. Molecular-Level Understanding of Dual-RTP via Host-Sensitized Multiple Triplet-to-Triplet Energy Transfers and Data Security Application. ACS OMEGA 2022; 7:3722-3730. [PMID: 35128280 PMCID: PMC8811933 DOI: 10.1021/acsomega.1c06390] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/13/2021] [Accepted: 01/13/2022] [Indexed: 05/14/2023]
Abstract
Dual-room-temperature phosphorescence (DRTP) from organic molecules is of utmost importance in chemical physics. The Dexter-type triplet-to-triplet energy transfer mechanism can therefore be used to achieve DRTP at ambient conditions. Here, we report two donor-acceptor (D-A)-based guests (CQN1, CQN2) in which the donor (D) and acceptor (A) parts are held in angular orientation around the C-N single bond. Spectroscopic analysis along with computational calculations revealed that both guests are incapable of emitting either thermally activated delayed fluorescence (TADF) or RTP at ambient conditions due to large singlet-triplet gaps, which are presented to show host (benzophenone, BP)-sensitized DRTP via multiple intermolecular triplet-to-triplet energy transfer (TTET) channels that originate from the triplet state (T1 BP) of BP to the triplet states (T1 D, T1 A) of the D and A parts (TTET-I:T1 BP → T1 D; TTET-II:T1 BP → T1 A). In addition, an intramolecular TTET channel that occurs from the T1 D to T1 A states of the D and A parts of CQN2 is also activated due to the low triplet (T1 D)-triplet (T1 A) gap at ambient conditions. The efficiency of TTET processes was found to be 100%. The phosphorescence quantum yields (ϕP) and lifetimes (τP) were shown to be 13-20% and 0.48-0.55 s, respectively. Given the high lifetime of the DRTP feature of both host-guest systems (1000:1 molar ratio), a data security application is achieved. This design principle provides the first solid proof that DRTP via radiative decay of the dark triplet states of the D and A parts of D-A-based non-TADF systems is possible, revealing a method to increase the efficiency and lifetime of DRTP.
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33
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Hackney HE, Hall DG. Recent Advances in the Luminescence of Arylboronic Acids and their Heteroatom Condensates. CHEMPHOTOCHEM 2022. [DOI: 10.1002/cptc.202100219] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Affiliation(s)
- Hannah E. Hackney
- Department of Chemistry University of Alberta Centennial Centre for Interdisciplinary Science Edmonton Alberta Canada
- Current address Department of Chemistry McGill University Montreal Quebec Canada
| | - Dennis G. Hall
- Department of Chemistry University of Alberta Centennial Centre for Interdisciplinary Science Edmonton Alberta Canada
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34
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Completely aqueous processable stimulus responsive organic room temperature phosphorescence materials with tunable afterglow color. Nat Commun 2022; 13:347. [PMID: 35039504 PMCID: PMC8764117 DOI: 10.1038/s41467-022-28011-6] [Citation(s) in RCA: 100] [Impact Index Per Article: 50.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/17/2021] [Accepted: 12/24/2021] [Indexed: 11/08/2022] Open
Abstract
Many luminescent stimuli responsive materials are based on fluorescence emission, while stimuli-responsive room temperature phosphorescent materials are less explored. Here, we show a kind of stimulus-responsive room temperature phosphorescence materials by the covalent linkage of phosphorescent chromophore of arylboronic acid and polymer matrix of poly(vinylalcohol). Attributed to the rigid environment offered from hydrogen bond and B-O covalent bond between arylboronic acid and poly(vinylalcohol), the yielded polymer film exhibits ultralong room temperature phosphorescence with lifetime of 2.43 s and phosphorescence quantum yield of 7.51%. Interestingly, the RTP property of this film is sensitive to the water and heat stimuli, because water could destroy the hydrogen bonds between adjacent poly(vinylalcohol) polymers, then changing the rigidity of this system. Furthermore, by introducing another two fluorescent dyes to this system, the color of afterglow with stimulus response effect could be adjusted from blue to green to orange through triplet-to-singlet Förster-resonance energy-transfer. Finally, due to the water/heat-sensitive, multicolor and completely aqueous processable feature for these three afterglow hybrids, they are successfully applied in multifunctional ink for anti-counterfeit, screen printing and fingerprint record.
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35
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Fan Y, Han M, Huang A, Liao Q, Tu J, Liu X, Huang B, Li Q, Li Z. Multi-photoresponsive triphenylethylene derivatives with photochromism, photodeformation and room temperature phosphorescence. MATERIALS HORIZONS 2022; 9:368-375. [PMID: 34533547 DOI: 10.1039/d1mh01207j] [Citation(s) in RCA: 12] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/13/2023]
Abstract
A series of triphenylethylene derivatives exhibited multi-photoresponsive properties, including photochromism, photodeformation and room temperature phosphorescence (RTP), which are strongly related to molecular conformations and packing in the aggregated states. Accordingly, these properties can be subtly adjusted by substituents to the center double bond and/or peripheral phenyl moieties. The introduction of bromine atom was beneficial to photochromism and photodeformation properties as a result of the additional C-H⋯Br interactions and electron-withdrawing property. Also, it can promote the RTP effect via heavy atom effect, resulting in persistent afterglow lasting up to 150 min as detected by chemiluminescent imaging system.
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Affiliation(s)
- Yunhao Fan
- Hubei Key Lab on Organic and Polymeric Opto-Electronic Materials, Sauvage Center for Molecular Sciences, Department of Chemistry, Wuhan University, Wuhan 430072, China.
| | - Mengmeng Han
- Hubei Key Lab on Organic and Polymeric Opto-Electronic Materials, Sauvage Center for Molecular Sciences, Department of Chemistry, Wuhan University, Wuhan 430072, China.
| | - Arui Huang
- Hubei Key Lab on Organic and Polymeric Opto-Electronic Materials, Sauvage Center for Molecular Sciences, Department of Chemistry, Wuhan University, Wuhan 430072, China.
| | - Qiuyan Liao
- Hubei Key Lab on Organic and Polymeric Opto-Electronic Materials, Sauvage Center for Molecular Sciences, Department of Chemistry, Wuhan University, Wuhan 430072, China.
| | - Jin Tu
- Hubei Key Lab on Organic and Polymeric Opto-Electronic Materials, Sauvage Center for Molecular Sciences, Department of Chemistry, Wuhan University, Wuhan 430072, China.
| | - Xiuxing Liu
- Hubei Key Lab on Organic and Polymeric Opto-Electronic Materials, Sauvage Center for Molecular Sciences, Department of Chemistry, Wuhan University, Wuhan 430072, China.
| | - Bohan Huang
- Hubei Key Lab on Organic and Polymeric Opto-Electronic Materials, Sauvage Center for Molecular Sciences, Department of Chemistry, Wuhan University, Wuhan 430072, China.
| | - Qianqian Li
- Hubei Key Lab on Organic and Polymeric Opto-Electronic Materials, Sauvage Center for Molecular Sciences, Department of Chemistry, Wuhan University, Wuhan 430072, China.
| | - Zhen Li
- Hubei Key Lab on Organic and Polymeric Opto-Electronic Materials, Sauvage Center for Molecular Sciences, Department of Chemistry, Wuhan University, Wuhan 430072, China.
- Institute of Molecular Aggregation Science, Tianjin University, Tianjin 300072, China
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36
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Xu W, Liu H, Mei F, Fu Y, Cao H, He Q, Cheng J. Supramolecule-Originated Emission: A Room-Temperature Phosphorescence 2D Ionic H-Bond Network from Nonemissive Aliphatic Derivatives. ACS APPLIED MATERIALS & INTERFACES 2021; 13:61528-61535. [PMID: 34914873 DOI: 10.1021/acsami.1c18441] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/14/2023]
Abstract
Supramolecular materials exhibiting unique functions unavailable from their individual components are attracting great attention. Here, we report a novel supramolecule emission strategy, where the emission originated from a two-dimensional (2D) ionic hydrogen bond (H-bond) supramolecular network. High-quality crystals were obtained by rapid self-assembly of liquid aliphatic amine and ketone. The 2D ionic H-bonding network was characterized by single-crystal X-ray diffraction (XRD) that shows a planar electron system similar to aromatic species. First-principles calculations demonstrated that the charge-separated transition process and high spin-orbital coupling constants of the rigid supramolecular structure contribute to the enhanced singlet-triplet intersystem crossing process. The emission could be well regulated via the substituents of either the enol or amine part, and a maximum quantum efficiency of 26% was realized. The emission system demonstrated stable room-temperature phosphorescence (RTP), which is even hard to obtain for aromatic species, and the lifetime reached 0.45 s with an 8% luminescence quantum yield. For application, with liquid amine and enol as ink, high-quality RTP patterns can be fabricated by computer-controlled precision printing. Our findings will surely bring completely fresh thinking for photoluminescence and other functions purely originated by the supramolecular structure.
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Affiliation(s)
- Wei Xu
- State Key Lab of Transducer Technology, Shanghai Institute of Microsystem and Information Technology, Chinese Academy of Sciences, Changning Road 865, Shanghai 200050, China
| | - Huan Liu
- State Key Lab of Transducer Technology, Shanghai Institute of Microsystem and Information Technology, Chinese Academy of Sciences, Changning Road 865, Shanghai 200050, China
| | - Fen Mei
- State Key Lab of Transducer Technology, Shanghai Institute of Microsystem and Information Technology, Chinese Academy of Sciences, Changning Road 865, Shanghai 200050, China
- Center of Materials Science and Optoelectronics Engineering, University of the Chinese Academy of Sciences, Yuquan Road 19, Beijing 100039, China
| | - Yanyan Fu
- State Key Lab of Transducer Technology, Shanghai Institute of Microsystem and Information Technology, Chinese Academy of Sciences, Changning Road 865, Shanghai 200050, China
| | - Huimin Cao
- State Key Lab of Transducer Technology, Shanghai Institute of Microsystem and Information Technology, Chinese Academy of Sciences, Changning Road 865, Shanghai 200050, China
| | - Qingguo He
- State Key Lab of Transducer Technology, Shanghai Institute of Microsystem and Information Technology, Chinese Academy of Sciences, Changning Road 865, Shanghai 200050, China
- Center of Materials Science and Optoelectronics Engineering, University of the Chinese Academy of Sciences, Yuquan Road 19, Beijing 100039, China
| | - Jiangong Cheng
- State Key Lab of Transducer Technology, Shanghai Institute of Microsystem and Information Technology, Chinese Academy of Sciences, Changning Road 865, Shanghai 200050, China
- Center of Materials Science and Optoelectronics Engineering, University of the Chinese Academy of Sciences, Yuquan Road 19, Beijing 100039, China
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37
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Cao J, Zhang M, Singh M, An Z, Ji L, Shi H, Jiang Y. Highly Efficient Heavy Atom Free Room Temperature Phosphorescence by Host-Guest Doping. Front Chem 2021; 9:781294. [PMID: 34888296 PMCID: PMC8649652 DOI: 10.3389/fchem.2021.781294] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/22/2021] [Accepted: 11/01/2021] [Indexed: 12/15/2022] Open
Abstract
Recently, there has been remarkable progress of the host-guest doped pure organic room-temperature phosphorescence (RTP) materials. However, it remains a great challenge to develop highly efficient host-guest doping systems. In this study, we have successfully developed a heavy atom free pure organic molecular doped system (benzophenone-thianthrene, respectively) with efficient RTP through a simple host-guest doping strategy. Furthermore, by optimizing the doping ratios, the host-guest material with a molar ratio of 100:1 presented an efficient RTP emission with 46% quantum efficiency and a long lifetime of up to 9.17 ms under ambient conditions. This work will provide an effective way to design new organic doping systems with RTP.
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Affiliation(s)
- Jinzhu Cao
- Institute of Laser Engineering, Beijing University of Technology (BJUT), Beijing, China.,China Electronics Standardization Institute, Beijing, China
| | - Meng Zhang
- Key Laboratory of Flexible Electronics (KLOFE), Institute of Advanced Materials (IAM), Nanjing Tech University (NanjingTech), Nanjing, China
| | - Manjeet Singh
- Key Laboratory of Flexible Electronics (KLOFE), Institute of Advanced Materials (IAM), Nanjing Tech University (NanjingTech), Nanjing, China
| | - Zhongfu An
- Key Laboratory of Flexible Electronics (KLOFE), Institute of Advanced Materials (IAM), Nanjing Tech University (NanjingTech), Nanjing, China
| | - Lingfei Ji
- Institute of Laser Engineering, Beijing University of Technology (BJUT), Beijing, China
| | - Huifang Shi
- Key Laboratory of Flexible Electronics (KLOFE), Institute of Advanced Materials (IAM), Nanjing Tech University (NanjingTech), Nanjing, China
| | - Yijian Jiang
- Institute of Laser Engineering, Beijing University of Technology (BJUT), Beijing, China
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38
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Xu C, Lin X, Wu W, Ma X. Room-temperature phosphorescence of a water-soluble supramolecular organic framework. Chem Commun (Camb) 2021; 57:10178-10181. [PMID: 34523642 DOI: 10.1039/d1cc04786h] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Abstract
A flexible porous water-soluble supramolecular organic framework was developed, which could efficiently exhibit phosphorescence both in an aqueous phase and in a film state at room-temperature.
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Affiliation(s)
- Chen Xu
- Key Laboratory for Advanced Materials and Feringa Nobel Prize Scientist Joint Research Center, Frontiers Science Center for Materiobiology and Dynamic Chemistry, Institute of Fine Chemicals, School of Chemistry and Molecular Engineering, East China University of Science and Technology, Meilong Road 130, Shanghai 200237, China.
| | - Xiaohan Lin
- Key Laboratory for Advanced Materials and Feringa Nobel Prize Scientist Joint Research Center, Frontiers Science Center for Materiobiology and Dynamic Chemistry, Institute of Fine Chemicals, School of Chemistry and Molecular Engineering, East China University of Science and Technology, Meilong Road 130, Shanghai 200237, China.
| | - Wenjun Wu
- Key Laboratory for Advanced Materials and Feringa Nobel Prize Scientist Joint Research Center, Frontiers Science Center for Materiobiology and Dynamic Chemistry, Institute of Fine Chemicals, School of Chemistry and Molecular Engineering, East China University of Science and Technology, Meilong Road 130, Shanghai 200237, China.
| | - Xiang Ma
- Key Laboratory for Advanced Materials and Feringa Nobel Prize Scientist Joint Research Center, Frontiers Science Center for Materiobiology and Dynamic Chemistry, Institute of Fine Chemicals, School of Chemistry and Molecular Engineering, East China University of Science and Technology, Meilong Road 130, Shanghai 200237, China.
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39
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Yang J, Zhang Y, Wu X, Dai W, Chen D, Shi J, Tong B, Peng Q, Xie H, Cai Z, Dong Y, Zhang X. Rational design of pyrrole derivatives with aggregation-induced phosphorescence characteristics for time-resolved and two-photon luminescence imaging. Nat Commun 2021; 12:4883. [PMID: 34385449 PMCID: PMC8361132 DOI: 10.1038/s41467-021-25174-6] [Citation(s) in RCA: 51] [Impact Index Per Article: 17.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/01/2021] [Accepted: 07/22/2021] [Indexed: 12/26/2022] Open
Abstract
Pure organic room-temperature phosphorescent (RTP) materials have been suggested to be promising bioimaging materials due to their good biocompatibility and long emission lifetime. Herein, we report a class of RTP materials. These materials are developed through the simple introduction of an aromatic carbonyl to a tetraphenylpyrrole molecule and also exhibit aggregation-induced emission (AIE) properties. These molecules show non-emission in solution and purely phosphorescent emission in the aggregated state, which are desirable properties for biological imaging. Highly crystalline nanoparticles can be easily fabricated with a long emission lifetime (20 μs), which eliminate background fluorescence interference from cells and tissues. The prepared nanoparticles demonstrate two-photon absorption characteristics and can be excited by near infrared (NIR) light, making them promising materials for deep-tissue optical imaging. This integrated aggregation-induced phosphorescence (AIP) strategy diversifies the existing pool of bioimaging agents to inspire the development of bioprobes in the future.
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Affiliation(s)
- Jianhui Yang
- Beijing Key Laboratory of Construction Tailorable Advanced Functional Materials and Green Applications, School of Materials Science and Engineering, Beijing Institute of Technology, Beijing, China
| | - Yahui Zhang
- School of Life Science, Advanced Research Institute of Multidisciplinary Science, Beijing Institute of Technology, Beijing, China
| | - Xinghui Wu
- Beijing Key Laboratory of Construction Tailorable Advanced Functional Materials and Green Applications, School of Materials Science and Engineering, Beijing Institute of Technology, Beijing, China
| | - Wenbo Dai
- Beijing Key Laboratory of Construction Tailorable Advanced Functional Materials and Green Applications, School of Materials Science and Engineering, Beijing Institute of Technology, Beijing, China
| | - Dan Chen
- Department of Gynaecology, Cancer Hospital of China Medical University, Liaoning Cancer Hospital, Shenyang, People's Republic of China
| | - Jianbing Shi
- Beijing Key Laboratory of Construction Tailorable Advanced Functional Materials and Green Applications, School of Materials Science and Engineering, Beijing Institute of Technology, Beijing, China
| | - Bin Tong
- Beijing Key Laboratory of Construction Tailorable Advanced Functional Materials and Green Applications, School of Materials Science and Engineering, Beijing Institute of Technology, Beijing, China
| | - Qian Peng
- School of Chemical Sciences, University of Chinese Academy of Sciences, Beijing, People's Republic of China
| | - Haiyan Xie
- School of Life Science, Advanced Research Institute of Multidisciplinary Science, Beijing Institute of Technology, Beijing, China
| | - Zhengxu Cai
- Beijing Key Laboratory of Construction Tailorable Advanced Functional Materials and Green Applications, School of Materials Science and Engineering, Beijing Institute of Technology, Beijing, China.
| | - Yuping Dong
- Beijing Key Laboratory of Construction Tailorable Advanced Functional Materials and Green Applications, School of Materials Science and Engineering, Beijing Institute of Technology, Beijing, China
| | - Xin Zhang
- Department of Gynaecology, Cancer Hospital of China Medical University, Liaoning Cancer Hospital, Shenyang, People's Republic of China.
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40
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Liu X, Pan Y, Lei Y, Liu N, Dai W, Liu M, Cai Z, Wu H, Huang X, Dong Y. Influence of Guest/Host Morphology on Room Temperature Phosphorescence Properties of Pure Organic Doped Systems. J Phys Chem Lett 2021; 12:7357-7364. [PMID: 34324348 DOI: 10.1021/acs.jpclett.1c01893] [Citation(s) in RCA: 13] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/13/2023]
Abstract
Guest/host phosphorescence materials have attracted much attention; traditionally, researchers have focused on the influence of the electronic properties and energy levels of the molecules on the phosphorescence activities. However, the effects of the morphology on the phosphorescence properties are ignored. Herein, three isoquinoline guests with different aliphatic rings and three hosts are selected to construct guest/host materials. Experimental results confirm that the guests are dispersed in the host in the form of clusters. More importantly, the morphologies of the guest/host directly affect the phosphorescence properties. In these systems, the guests have strong intermolecular interactions, which are beneficial to stabilize the triplet excitons; meanwhile, the hosts should have weak intermolecular interactions with easily changed morphology to accept the guest clusters, which synergistically ensure that the doped materials have excellent RTP properties. This is the first work focusing on the effect of molecular morphology on the phosphorescence characteristics of guest/host systems.
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Affiliation(s)
- Xiaoqing Liu
- School of Chemistry and Materials Engineering, Wenzhou University, Wenzhou, Zhejiang 325035, P. R. China
| | - Yanyan Pan
- School of Chemistry and Materials Engineering, Wenzhou University, Wenzhou, Zhejiang 325035, P. R. China
| | - Yunxiang Lei
- School of Chemistry and Materials Engineering, Wenzhou University, Wenzhou, Zhejiang 325035, P. R. China
| | - Nannan Liu
- School of Chemistry and Materials Engineering, Wenzhou University, Wenzhou, Zhejiang 325035, P. R. China
| | - Wenbo Dai
- School of Materials Science & Engineering, Beijing Institute of Technology, Beijing 10081, P. R. China
| | - Miaochang Liu
- School of Chemistry and Materials Engineering, Wenzhou University, Wenzhou, Zhejiang 325035, P. R. China
| | - Zhengxu Cai
- School of Materials Science & Engineering, Beijing Institute of Technology, Beijing 10081, P. R. China
| | - Huayue Wu
- School of Chemistry and Materials Engineering, Wenzhou University, Wenzhou, Zhejiang 325035, P. R. China
| | - Xiaobo Huang
- School of Chemistry and Materials Engineering, Wenzhou University, Wenzhou, Zhejiang 325035, P. R. China
| | - Yuping Dong
- School of Materials Science & Engineering, Beijing Institute of Technology, Beijing 10081, P. R. China
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41
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Wang XY, Yin Y, Yin J, Chen Z, Liu SH. Persistent room-temperature phosphorescence or high-contrast phosphorescent mechanochromism: polymorphism-dependent different emission characteristics from a single gold(I) complex. Dalton Trans 2021; 50:7744-7749. [PMID: 33988209 DOI: 10.1039/d1dt00959a] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/01/2023]
Abstract
Luminophores with persistent room-temperature phosphorescence (p-RTP) or effective phosphorescent mechanochromism features have significant potential applications in the field of optoelectronic materials. Until now, p-RTP and remarkable phosphorescent mechanochromism phenomena have been observed in some luminescent molecules with different molecular structures. However, separately realizing p-RTP and high-contrast phosphorescent mechanochromism in different polymorphs from a single luminophore is still a valuable and challenging topic. In this work, two polymorphs 1B and 1YG of a new gold(i) complex with blue and yellow-green luminescence, respectively, are reported. Interestingly, 1B exhibits high-contrast phosphorescent mechanochromic behavior, while 1YG exhibits a persistent room-temperature phosphorescence effect. This is the first example of simultaneously obtaining double-purpose crystalline materials with a high-contrast phosphorescent mechanochromism or persistent room-temperature phosphorescence feature from a single luminophore.
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Affiliation(s)
- Xiao-Yan Wang
- Key Laboratory of Pesticide and Chemical Biology, Ministry of Education, College of Chemistry, Central China Normal University, Wuhan 430079, China.
| | - Ya Yin
- Hubei Key Laboratory of Catalysis and Materials Science, College of Chemistry and Material Sciences, South-Central University for Nationalities, Wuhan 430074, PR China
| | - Jun Yin
- Key Laboratory of Pesticide and Chemical Biology, Ministry of Education, College of Chemistry, Central China Normal University, Wuhan 430079, China.
| | - Zhao Chen
- Key Laboratory of Pesticide and Chemical Biology, Ministry of Education, College of Chemistry, Central China Normal University, Wuhan 430079, China. and Jiangxi Key Laboratory of Organic Chemistry, Jiangxi Science and Technology Normal University, Nanchang 330013, PR China.
| | - Sheng Hua Liu
- Key Laboratory of Pesticide and Chemical Biology, Ministry of Education, College of Chemistry, Central China Normal University, Wuhan 430079, China. and State Key Laboratory of Structural Chemistry, Fujian Institute of Research on the Structure of Matter, Chinese Academy of Sciences, Fuzhou 350002, PR China
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42
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Yang Y, Yang J, Fang M, Li Z. Recent Process of Photo-responsive Materials with Aggregation-induced Emission. Chem Res Chin Univ 2021. [DOI: 10.1007/s40242-021-1034-5] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/29/2022]
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43
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Liao Q, Li Q, Li Z. Substituent Effects in Organic Luminogens with Room Temperature Phosphorescence. CHEMPHOTOCHEM 2021. [DOI: 10.1002/cptc.202100016] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
Affiliation(s)
- Qiuyan Liao
- Hubei Key Lab on Organic and Polymeric Opto-Electronic Materials Department of Chemistry Wuhan University Wuhan 430072 China
| | - Qianqian Li
- Hubei Key Lab on Organic and Polymeric Opto-Electronic Materials Department of Chemistry Wuhan University Wuhan 430072 China
| | - Zhen Li
- Hubei Key Lab on Organic and Polymeric Opto-Electronic Materials Department of Chemistry Wuhan University Wuhan 430072 China
- Institute of Molecular Aggregation Science Tianjin University Tianjin 300072 China
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44
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Zheng H, Cao P, Wang Y, Lu X, Wu P. Ultralong Room-Temperature Phosphorescence from Boric Acid. Angew Chem Int Ed Engl 2021; 60:9500-9506. [PMID: 33594791 DOI: 10.1002/anie.202101923] [Citation(s) in RCA: 49] [Impact Index Per Article: 16.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/07/2021] [Indexed: 01/03/2023]
Abstract
For a long time, phosphors with long-lived emission are dominated by rare earth/transition metal ion-doped sulfides and oxides. Recently, organic materials capable of emitting long-lived room-temperature phosphorescence (RTP) are reported, carbon skeletons are almost the exclusive structural feature of the conjugated luminophores. Herein, we reported that boric acid, a non-metal and C-free material, could emit RTP with lifetime up to 0.3 s. Detailed investigations indicated the weak conjugation between the n electrons of the O atoms in the B-O confined space was the possible origin of RTP. Similar RTP was also found in electron-rich N/F systems, namely, BN and BF3 (BF4 - ). Importantly, the vacant p z 0 orbital of B was found to contribute to the relevant unoccupied molecular orbitals involved in excitation, which is different from previous reports on phosphorescence from arylboronic acids. The results confirm the unique role of B as a versatile structure motif for construction of new RTP materials.
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Affiliation(s)
- Haoyue Zheng
- State Key Laboratory of Hydraulics and Mountain River Engineering, Analytical & Testing Center, Sichuan University, Chengdu, 610064, China
| | - Peisheng Cao
- Key Laboratory of Green Chemistry and Technology of MOE, College of Chemistry, Sichuan University, Chengdu, 610064, China
| | - Yanying Wang
- State Key Laboratory of Hydraulics and Mountain River Engineering, Analytical & Testing Center, Sichuan University, Chengdu, 610064, China
| | - Xiaomei Lu
- State Key Laboratory of Hydraulics and Mountain River Engineering, Analytical & Testing Center, Sichuan University, Chengdu, 610064, China
| | - Peng Wu
- State Key Laboratory of Hydraulics and Mountain River Engineering, Analytical & Testing Center, Sichuan University, Chengdu, 610064, China.,Key Laboratory of Green Chemistry and Technology of MOE, College of Chemistry, Sichuan University, Chengdu, 610064, China
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45
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Lei Y, Yang J, Dai W, Lan Y, Yang J, Zheng X, Shi J, Tong B, Cai Z, Dong Y. Efficient and organic host-guest room-temperature phosphorescence: tunable triplet-singlet crossing and theoretical calculations for molecular packing. Chem Sci 2021; 12:6518-6525. [PMID: 34040727 PMCID: PMC8132935 DOI: 10.1039/d1sc01175h] [Citation(s) in RCA: 41] [Impact Index Per Article: 13.7] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/01/2021] [Accepted: 04/04/2021] [Indexed: 12/14/2022] Open
Abstract
Organic host-guest doped materials exhibiting the room temperature phosphorescence (RTP) phenomenon have attracted considerable attention. However, it is still challenging to investigate their corresponding luminescence mechanism, because for host-guest systems, it is very difficult to obtain single crystals compared to single-component or co-crystal component materials. Herein, we developed a series of organic doped materials with triphenylamine (TPA) as the host and TPA derivatives with different electron-donating groups as guests. The doped materials showed strong fluorescence, thermally activated delayed fluorescence (τ: 39-47 ms), and efficient room temperature phosphorescence (Φ phos: 7.3-9.1%; τ: 170-262 ms). The intensity ratio between the delayed fluorescence and phosphorescence was tuned by the guest species and concentration. Molecular dynamics simulations were used to simulate the molecular conformation of guest molecules in the host matrix and the interaction between the host and guest molecules. Therefore, the photophysical properties were calculated using the QM/MM model. This work provides a new concept for the study of molecular packing of guest molecules in the host matrix.
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Affiliation(s)
- Yunxiang Lei
- School of Chemistry and Materials Engineering, Wenzhou University Wenzhou 325035 P. R. China
| | - Junfang Yang
- Department School of Chemistry and Chemical Engineering, Beijing Institute of Technology Beijing 100081 P. R. China
| | - Wenbo Dai
- School of Materials Science & Engineering, Beijing Institute of Technology Beijing 100081 P. R. China
| | - Yisha Lan
- School of Materials Science & Engineering, Beijing Institute of Technology Beijing 100081 P. R. China
| | - Jianhui Yang
- School of Materials Science & Engineering, Beijing Institute of Technology Beijing 100081 P. R. China
| | - Xiaoyan Zheng
- Department School of Chemistry and Chemical Engineering, Beijing Institute of Technology Beijing 100081 P. R. China
| | - Jianbing Shi
- School of Materials Science & Engineering, Beijing Institute of Technology Beijing 100081 P. R. China
| | - Bin Tong
- School of Materials Science & Engineering, Beijing Institute of Technology Beijing 100081 P. R. China
| | - Zhengxu Cai
- School of Materials Science & Engineering, Beijing Institute of Technology Beijing 100081 P. R. China
| | - Yuping Dong
- School of Materials Science & Engineering, Beijing Institute of Technology Beijing 100081 P. R. China
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46
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Zheng H, Cao P, Wang Y, Lu X, Wu P. Ultralong Room‐Temperature Phosphorescence from Boric Acid. Angew Chem Int Ed Engl 2021. [DOI: 10.1002/ange.202101923] [Citation(s) in RCA: 23] [Impact Index Per Article: 7.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/02/2023]
Affiliation(s)
- Haoyue Zheng
- State Key Laboratory of Hydraulics and Mountain River Engineering Analytical & Testing Center Sichuan University Chengdu 610064 China
| | - Peisheng Cao
- Key Laboratory of Green Chemistry and Technology of MOE College of Chemistry Sichuan University Chengdu 610064 China
| | - Yanying Wang
- State Key Laboratory of Hydraulics and Mountain River Engineering Analytical & Testing Center Sichuan University Chengdu 610064 China
| | - Xiaomei Lu
- State Key Laboratory of Hydraulics and Mountain River Engineering Analytical & Testing Center Sichuan University Chengdu 610064 China
| | - Peng Wu
- State Key Laboratory of Hydraulics and Mountain River Engineering Analytical & Testing Center Sichuan University Chengdu 610064 China
- Key Laboratory of Green Chemistry and Technology of MOE College of Chemistry Sichuan University Chengdu 610064 China
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47
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Nidhankar AD, Goudappagouda, Wakchaure VC, Babu SS. Efficient metal-free organic room temperature phosphors. Chem Sci 2021; 12:4216-4236. [PMID: 34163691 PMCID: PMC8179585 DOI: 10.1039/d1sc00446h] [Citation(s) in RCA: 65] [Impact Index Per Article: 21.7] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/25/2021] [Accepted: 02/18/2021] [Indexed: 11/21/2022] Open
Abstract
An innovative transformation of organic luminescent materials in recent years has realised the exciting research area of ultralong room-temperature phosphorescence. Here the credit for the advancements goes to the rational design of new organic phosphors. The continuous effort in the area has yielded wide varieties of metal-free organic systems capable of extending the lifetime to several seconds under ambient conditions with high quantum yield and attractive afterglow properties. The various strategies adopted in the past decade to manipulate the fate of triplet excitons suggest a bright future for this class of materials. To analyze the underlying processes in detail, we have chosen high performing organic triplet emitters that utilized the best possible ways to achieve a lifetime above one second along with impressive quantum yield and afterglow properties. Such a case study describing different classes of metal-free organic phosphors and strategies adopted for the efficient management of triplet excitons will stimulate the development of better candidates for futuristic applications. This Perspective discusses the phosphorescence features of single- and multi-component crystalline assemblies, host-guest assemblies, polymers, and polymer-based systems under various classes of molecules. The various applications of the organic phosphors, along with future perspectives, are also highlighted.
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Affiliation(s)
- Aakash D Nidhankar
- Organic Chemistry Division, National Chemical Laboratory (CSIR-NCL) Dr Homi Bhabha Road Pune-411008 India
- Academy of Scientific and Innovative Research (AcSIR) Ghaziabad-201002 India
| | - Goudappagouda
- Organic Chemistry Division, National Chemical Laboratory (CSIR-NCL) Dr Homi Bhabha Road Pune-411008 India
- Academy of Scientific and Innovative Research (AcSIR) Ghaziabad-201002 India
| | - Vivek C Wakchaure
- Organic Chemistry Division, National Chemical Laboratory (CSIR-NCL) Dr Homi Bhabha Road Pune-411008 India
- Academy of Scientific and Innovative Research (AcSIR) Ghaziabad-201002 India
| | - Sukumaran Santhosh Babu
- Organic Chemistry Division, National Chemical Laboratory (CSIR-NCL) Dr Homi Bhabha Road Pune-411008 India
- Academy of Scientific and Innovative Research (AcSIR) Ghaziabad-201002 India
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48
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Wu Y, Wang J, Li L, Fei X, Xu L, Wang Y, Tian J, Li Y. A novel hydrogel with self-healing property and bactericidal activity. J Colloid Interface Sci 2021; 584:484-494. [PMID: 33129158 DOI: 10.1016/j.jcis.2020.09.105] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/16/2020] [Revised: 09/20/2020] [Accepted: 09/26/2020] [Indexed: 12/20/2022]
Abstract
In this study, we have designed and synthesized a novel poly (4 - vinyl benzene boronic acid - co - N - vinyl pyrrolidone - co - 1 - vinyl - 3 - butylimidazolium bromide) hydrogel (VNV hydrogel) dressing with good self-healing properties and bactericidal activity. The gelation and self-healing of this hydrogel are mainly achieved by the formation of a dynamic B-O-B bond between the polymer chains, which is fractured by external forces and subsequently reformed. This self-healing mechanism is studied in detail through the molecular design of the hydrogel. The introduction of hydrophilic chemical groups can effectively improve the porous structures, water absorption and molecular migration. These properties have a positive effect on improving self-healing properties of dynamic crosslinked hydrogels. Furthermore, this VNV hydrogel dressing displays good antibacterial activity against E. coli, S. aureus, and C. albicans. The application of VNV hydrogel dressing on rat wound surface can effectively accelerate wound healing. These results indicate that this novel VNV hydrogel dressing with good self-healing properties and bactericidal activity has potential applications in wound dressings.
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Affiliation(s)
- Yuxuan Wu
- Instrumental Analysis Center, Dalian Polytechnic University, Dalian 116034, China; School of Biological Engineering, Dalian Polytechnic University, Dalian 116034, China
| | - Jihui Wang
- School of Biological Engineering, Dalian Polytechnic University, Dalian 116034, China; School of Chemical Engineering & Energy Technology, Dongguan University of Technology, Dongguan 528808, China
| | - Lin Li
- School of Chemical Engineering & Energy Technology, Dongguan University of Technology, Dongguan 528808, China
| | - Xu Fei
- Instrumental Analysis Center, Dalian Polytechnic University, Dalian 116034, China.
| | - Longquan Xu
- Instrumental Analysis Center, Dalian Polytechnic University, Dalian 116034, China
| | - Yi Wang
- School of Biological Engineering, Dalian Polytechnic University, Dalian 116034, China
| | - Jing Tian
- School of Biological Engineering, Dalian Polytechnic University, Dalian 116034, China.
| | - Yao Li
- School of Light Industry and Chemical Engineering, Dalian Polytechnic University, Dalian 116034, China.
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49
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Bhatia H, Dey S, Ray D. Effect of π···π Interactions of Donor Rings on Persistent Room-Temperature Phosphorescence in D 4-A Conjugates and Data Security Application. ACS OMEGA 2021; 6:3858-3865. [PMID: 33585764 PMCID: PMC7876834 DOI: 10.1021/acsomega.0c05666] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/21/2020] [Accepted: 01/15/2021] [Indexed: 05/27/2023]
Abstract
Organic room-temperature phosphorescence (RTP) materials with persistent RTP (PRTP) have attracted huge interest in inks, bioimaging, and photodynamic therapy. However, the design principle to increase the lifetime of organic molecules is underdeveloped. Herein, we show donor(D4)-acceptor(A) molecules (TOEPh, TOCPh, TOMPh, TOF and TOPh) with similar orientation of donor rings in aggregates that cause a large number of noncovalent interactions. We observed that TOEPh, TOCPh, TOMPh and TOF showed PRTP, whereas TOPh showed only phosphorescence emission (ΦP = ∼11%) with no PRTP property at ambient conditions. The spectroscopic and single-crystal X-ray analyses confirm the molecular assembly via J-aggregation with a face-to-face orientation of the donor rings. The crystal structure analysis (TOEPh, TOCPh, TOMPh, TOF) reveals that moderate π···π interactions (3.706 to 4.065 Å) between the donor rings cause the enhancement of the phosphorescence lifetime (26 to 245 ms), whereas the short phosphorescence lifetime (12 ms) of TOPh was observed because of the absence of π···π interactions. We found that TOEPh shows a long lifetime (245 ms) as compared to other derivatives because of the presence of ethoxy (-OEt) groups that enables spin-orbit coupling caused by strong lone pair (O)···π interactions present in the molecule. Utilizing the PRTP feature of TOEPh and the fluorescence emission of TOPh, we have shown data security applications in poly(methyl methacrylate).
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50
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Persistent room temperature blue phosphorescence from racemic crystals of 1,1-diphenylmethanol derivatives. J Photochem Photobiol A Chem 2021. [DOI: 10.1016/j.jphotochem.2020.113043] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
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