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Xu Y, Zhang K, Hu M, Gao X, Leng J, Fan J. Triplet exciton dynamics of pure organics with halogen substitution boosted two photon absorption and room temperature phosphorescence: A theoretical perspective. SPECTROCHIMICA ACTA. PART A, MOLECULAR AND BIOMOLECULAR SPECTROSCOPY 2022; 270:120786. [PMID: 34972053 DOI: 10.1016/j.saa.2021.120786] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/20/2021] [Revised: 11/21/2021] [Accepted: 12/17/2021] [Indexed: 06/14/2023]
Abstract
Organic room temperature phosphorescence (RTP) molecules have shown promising applications in organic light emitting diodes and vivo imaging. Thus, triplet exciton dynamics in solid phase should be revealed and the molecule should possess large two photon absorption (TPA) cross sections under near-infrared excitation. The effects of halogen substitution and intermolecular interaction on RTP and TPA properties are studied at molecular level for a series of derivatives. Surrounding environment in solid phase is considered by combined quantum mechanics and molecular mechanics method. Intermolecular interactions are evaluated by the independent gradient model and calculated through the molecular force field energy decomposition method. Minimum energy crossing point, Huang-Rhys factor and reorganization energy are discussed, triplet exciton dynamics are investigated by thermal vibration correlation function method. Results indicate that the largest TPA cross sections are found for molecule in water. The halogen substitution can enlarge the proportion of (π, π*) and facilitate the intersystem crossing process. Restricted intramolecular rotation motions of dihedral angle in low frequency regions are found for Br-Np-Cz-BF2 in solid phase. While enhanced vibrations of bond length and bond angle in high frequency regions are detected for I-Np-Cz-BF2. Effects of halogen substitution and intermolecular interaction on triplet exciton dynamics are highlighted.
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Affiliation(s)
- Yuanyuan Xu
- School of Science, Qilu University of Technology (Shandong Academy of Sciences), Jinan 250353, China
| | - Kai Zhang
- Shandong Province Key Laboratory of Medical Physics and Image Processing Technology, Institute of Materials and Clean Energy, School of Physics and Electronics, Shandong Normal University, Jinan 250014, China
| | - Minghao Hu
- School of Science, Qilu University of Technology (Shandong Academy of Sciences), Jinan 250353, China
| | - Xingguo Gao
- School of Science, Qilu University of Technology (Shandong Academy of Sciences), Jinan 250353, China
| | - Jiancai Leng
- School of Science, Qilu University of Technology (Shandong Academy of Sciences), Jinan 250353, China
| | - Jianzhong Fan
- Shandong Province Key Laboratory of Medical Physics and Image Processing Technology, Institute of Materials and Clean Energy, School of Physics and Electronics, Shandong Normal University, Jinan 250014, China.
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2
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Ito S. Luminescent polymorphic crystals: mechanoresponsive and multicolor-emissive properties. CrystEngComm 2022. [DOI: 10.1039/d1ce01614h] [Citation(s) in RCA: 12] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/01/2023]
Abstract
Polymorphic organic crystals that can switch their photophysical properties in response to mechanical stimuli are highlighted.
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Affiliation(s)
- Suguru Ito
- Department of Chemistry and Life Science, Graduate School of Engineering Science, Yokohama National University, 79-5 Tokiwadai, Hodogaya-ku, Yokohama 240-8501, Japan
- PRESTO, Japan Science and Technology Agency (JST), 4-1-8 Honcho, Kawaguchi, Saitama 332-0012, Japan
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3
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Zhang H, Tang BZ. Through-Space Interactions in Clusteroluminescence. JACS AU 2021; 1:1805-1814. [PMID: 34841401 PMCID: PMC8611663 DOI: 10.1021/jacsau.1c00311] [Citation(s) in RCA: 65] [Impact Index Per Article: 21.7] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/13/2021] [Indexed: 05/16/2023]
Abstract
Conventional π-conjugated luminophores suffer from problems such as emission quenching, biotoxicity, environmental pollution, etc. The emerging nonconjugated and nonaromatic clusteroluminogens (CLgens) are expected to overcome these stubborn drawbacks, so research of CLgens shows great significance not only for practical application but also for the construction of fundamental photophysical theories. This perspective summarizes the unusual features of CLgens in comparison to traditional chromophores, such as nonconjugated molecular structures, unmatched absorption and excitation, excitation-dependent luminescence, multiple emission peaks, and room-temperature phosphorescence. Different from the theory of through-bond conjugation in π-conjugated luminophores, through-space interactions, including through-space n···n interaction and through-space n···π interaction, are regarded as the emitting sources of nonconjugated CLgens. In addition, the formation of network clusters is proposed as an efficient strategy to improve the performance of CLgens, and their potential applications of anticounterfeiting, photoelectronic devices, and bioimaging are prospected.
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Affiliation(s)
- Haoke Zhang
- MOE
Key Laboratory of Macromolecular Synthesis and Functionalization,
Department of Polymer Science and Engineering, Zhejiang University, Hangzhou 310027, China
- ZJU-Hangzhou
Global Scientific and Technological Innovation Center, Hangzhou 311215, China
- Guangdong
Provincial Key Laboratory of Luminescence from Molecular Aggregates, South China University of Technology, Guangzhou 510640, China
| | - Ben Zhong Tang
- Shenzhen
Institute of Aggregate Science and Technology, School of Science and
Engineering, The Chinese University of Hong
Kong, Shenzhen 518172, China
- Center
for Aggregation-Induced Emission, SCUT-HKUST Joint Research Institute,
State Key Laboratory of Luminescent Materials and Devices, South China University of Technology, Guangzhou 510640, China
- AIE Institute, Guangzhou 510530, China
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4
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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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5
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Lin X, Wang J, Ding B, Ma X, Tian H. Tunable‐Emission Amorphous Room‐Temperature Phosphorescent Polymers Based on Thermoreversible Dynamic Covalent Bonds. Angew Chem Int Ed Engl 2020; 60:3459-3463. [DOI: 10.1002/anie.202012298] [Citation(s) in RCA: 51] [Impact Index Per Article: 12.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/09/2020] [Revised: 10/08/2020] [Indexed: 01/14/2023]
Affiliation(s)
- 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 & Technology Meilong Road 130 Shanghai 200237 China
| | - Jie Wang
- 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 & Technology Meilong Road 130 Shanghai 200237 China
| | - Bingbing Ding
- 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 & 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 & Technology Meilong Road 130 Shanghai 200237 China
| | - He Tian
- 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 & Technology Meilong Road 130 Shanghai 200237 China
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6
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Lin X, Wang J, Ding B, Ma X, Tian H. Tunable‐Emission Amorphous Room‐Temperature Phosphorescent Polymers Based on Thermoreversible Dynamic Covalent Bonds. Angew Chem Int Ed Engl 2020. [DOI: 10.1002/ange.202012298] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Affiliation(s)
- 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 & Technology Meilong Road 130 Shanghai 200237 China
| | - Jie Wang
- 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 & Technology Meilong Road 130 Shanghai 200237 China
| | - Bingbing Ding
- 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 & 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 & Technology Meilong Road 130 Shanghai 200237 China
| | - He Tian
- 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 & Technology Meilong Road 130 Shanghai 200237 China
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7
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Li Z, Liu X, Sun L, Ma X. Phosphorus-containing amorphous pure organic room-temperature phosphorescent materials. Eur Polym J 2020. [DOI: 10.1016/j.eurpolymj.2020.110072] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/01/2023]
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8
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Zhang H, Zhao Z, Turley AT, Wang L, McGonigal PR, Tu Y, Li Y, Wang Z, Kwok RTK, Lam JWY, Tang BZ. Aggregate Science: From Structures to Properties. ADVANCED MATERIALS (DEERFIELD BEACH, FLA.) 2020; 32:e2001457. [PMID: 32734656 DOI: 10.1002/adma.202001457] [Citation(s) in RCA: 164] [Impact Index Per Article: 41.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/29/2020] [Revised: 04/15/2020] [Indexed: 05/05/2023]
Abstract
Molecular science entails the study of structures and properties of materials at the level of single molecules or small interacting complexes of molecules. Moving beyond single molecules and well-defined complexes, aggregates (i.e., irregular clusters of many molecules) serve as a particularly useful form of materials that often display modified or wholly new properties compared to their molecular components. Some unique structures and phenomena such as polymorphic aggregates, aggregation-induced symmetry breaking, and cluster excitons are only identified in aggregates, as a few examples of their exotic features. Here, by virtue of the flourishing research on aggregation-induced emission, the concept of "aggregate science" is put forward to fill the gaps between molecules and aggregates. Structures and properties on the aggregate scale are also systematically summarized. The structure-property relationships established for aggregates are expected to contribute to new materials and technological development. Ultimately, aggregate science may become an interdisciplinary research field and serves as a general platform for academic research.
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Affiliation(s)
- Haoke Zhang
- Department of Chemistry, Hong Kong Branch of Chinese National Engineering Research Center for Tissue Restoration and Reconstruction and Institute for Advanced Study, The Hong Kong University of Science and Technology, Clear Water Bay, Kowloon, Hong Kong, 999077, China
- HKUST-Shenzhen Research Institute, No. 9 Yuexing 1st Rd, South Area, Hi-tech Park, Nanshan, Shenzhen, 518057, China
| | - Zheng Zhao
- Department of Chemistry, Hong Kong Branch of Chinese National Engineering Research Center for Tissue Restoration and Reconstruction and Institute for Advanced Study, The Hong Kong University of Science and Technology, Clear Water Bay, Kowloon, Hong Kong, 999077, China
- HKUST-Shenzhen Research Institute, No. 9 Yuexing 1st Rd, South Area, Hi-tech Park, Nanshan, Shenzhen, 518057, China
| | - Andrew T Turley
- Department of Chemistry, Durham University, Lower Mountjoy, Stockton Road, Durham, DH1 3LE, UK
| | - Lin Wang
- School of Biomedical Sciences, Faculty of Medicine, The Chinese University of Hong Kong, Shatin, NT, Hong Kong, 999077, China
| | - Paul R McGonigal
- Department of Chemistry, Durham University, Lower Mountjoy, Stockton Road, Durham, DH1 3LE, UK
| | - Yujie Tu
- Department of Chemistry, Hong Kong Branch of Chinese National Engineering Research Center for Tissue Restoration and Reconstruction and Institute for Advanced Study, The Hong Kong University of Science and Technology, Clear Water Bay, Kowloon, Hong Kong, 999077, China
- HKUST-Shenzhen Research Institute, No. 9 Yuexing 1st Rd, South Area, Hi-tech Park, Nanshan, Shenzhen, 518057, China
| | - Yuanyuan Li
- Department of Chemistry, Hong Kong Branch of Chinese National Engineering Research Center for Tissue Restoration and Reconstruction and Institute for Advanced Study, The Hong Kong University of Science and Technology, Clear Water Bay, Kowloon, Hong Kong, 999077, China
- HKUST-Shenzhen Research Institute, No. 9 Yuexing 1st Rd, South Area, Hi-tech Park, Nanshan, Shenzhen, 518057, China
| | - Zhaoyu Wang
- Department of Chemistry, Hong Kong Branch of Chinese National Engineering Research Center for Tissue Restoration and Reconstruction and Institute for Advanced Study, The Hong Kong University of Science and Technology, Clear Water Bay, Kowloon, Hong Kong, 999077, China
- HKUST-Shenzhen Research Institute, No. 9 Yuexing 1st Rd, South Area, Hi-tech Park, Nanshan, Shenzhen, 518057, China
| | - Ryan T K Kwok
- Department of Chemistry, Hong Kong Branch of Chinese National Engineering Research Center for Tissue Restoration and Reconstruction and Institute for Advanced Study, The Hong Kong University of Science and Technology, Clear Water Bay, Kowloon, Hong Kong, 999077, China
- HKUST-Shenzhen Research Institute, No. 9 Yuexing 1st Rd, South Area, Hi-tech Park, Nanshan, Shenzhen, 518057, China
| | - Jacky W Y Lam
- Department of Chemistry, Hong Kong Branch of Chinese National Engineering Research Center for Tissue Restoration and Reconstruction and Institute for Advanced Study, The Hong Kong University of Science and Technology, Clear Water Bay, Kowloon, Hong Kong, 999077, China
- HKUST-Shenzhen Research Institute, No. 9 Yuexing 1st Rd, South Area, Hi-tech Park, Nanshan, Shenzhen, 518057, China
| | - Ben Zhong Tang
- Department of Chemistry, Hong Kong Branch of Chinese National Engineering Research Center for Tissue Restoration and Reconstruction and Institute for Advanced Study, The Hong Kong University of Science and Technology, Clear Water Bay, Kowloon, Hong Kong, 999077, China
- HKUST-Shenzhen Research Institute, No. 9 Yuexing 1st Rd, South Area, Hi-tech Park, Nanshan, Shenzhen, 518057, China
- Center for Aggregation-Induced Emission, State Key Laboratory of Luminescent Materials and Devices, SCUT-HKUST Joint Research Institute, South China University of Technology, Tianhe Qu, Guangzhou, 510640, China
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9
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Kalluvettukuzhy NK, Pagidi S, Prasad Nandi R, Thilagar P. Exploiting N−H–π Interactions in 2‐(Dimesitylboraneyl)‐1H‐pyrrole for Luminescence Enhancement. ASIAN J ORG CHEM 2020. [DOI: 10.1002/ajoc.201900756] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/03/2023]
Affiliation(s)
- Neena K Kalluvettukuzhy
- Department of Inorganic and physical ChemistryIndian Institute of Science Bangalore 560012 India
| | - Sudhakar Pagidi
- Department of Inorganic and physical ChemistryIndian Institute of Science Bangalore 560012 India
| | - Rajendra Prasad Nandi
- Department of Inorganic and physical ChemistryIndian Institute of Science Bangalore 560012 India
| | - Pakkirisamy Thilagar
- Department of Inorganic and physical ChemistryIndian Institute of Science Bangalore 560012 India
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10
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Tao S, Zhu S, Feng T, Zheng C, Yang B. Crosslink‐Enhanced Emission Effect on Luminescence in Polymers: Advances and Perspectives. Angew Chem Int Ed Engl 2020. [DOI: 10.1002/ange.201916591] [Citation(s) in RCA: 24] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/07/2023]
Affiliation(s)
- Songyuan Tao
- State Key Laboratory of Supramolecular Structure and MaterialsCollege of ChemistryJilin University Changchun 130012 P. R. China
| | - Shoujun Zhu
- State Key Laboratory of Supramolecular Structure and MaterialsCollege of ChemistryJilin University Changchun 130012 P. R. China
- Key Laboratory of Organ Regeneration and Transplantation of the Ministry of EducationThe First Hospital of Jilin University Changchun 130061 P. R. China
| | - Tanglue Feng
- State Key Laboratory of Supramolecular Structure and MaterialsCollege of ChemistryJilin University Changchun 130012 P. R. China
| | - Chengyu Zheng
- State Key Laboratory of Supramolecular Structure and MaterialsCollege of ChemistryJilin University Changchun 130012 P. R. China
| | - Bai Yang
- State Key Laboratory of Supramolecular Structure and MaterialsCollege of ChemistryJilin University Changchun 130012 P. R. China
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11
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Crosslink‐Enhanced Emission Effect on Luminescence in Polymers: Advances and Perspectives. Angew Chem Int Ed Engl 2020; 59:9826-9840. [DOI: 10.1002/anie.201916591] [Citation(s) in RCA: 91] [Impact Index Per Article: 22.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/26/2019] [Indexed: 01/14/2023]
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12
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Qi H, Zhang H, Wu X, Tang Y, Qian M, Wang K, Qi H. Matrix‐Free and Highly Efficient Room‐Temperature Phosphorescence Carbon Dots towards Information Encryption and Decryption. Chem Asian J 2020; 15:1281-1284. [PMID: 32080979 DOI: 10.1002/asia.202000063] [Citation(s) in RCA: 12] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/15/2020] [Revised: 02/16/2020] [Indexed: 11/09/2022]
Affiliation(s)
- Hetong Qi
- Department of Applied Chemistry School of Science Xi'an Jiaotong University No. 28 West Xianning Road Xi'an Shaanxi 710049 P. R. China
| | - Hengqi Zhang
- Department of Applied Chemistry School of Science Xi'an Jiaotong University No. 28 West Xianning Road Xi'an Shaanxi 710049 P. R. China
| | - Xuemei Wu
- Department of Applied Chemistry School of Science Xi'an Jiaotong University No. 28 West Xianning Road Xi'an Shaanxi 710049 P. R. China
| | - Yuhai Tang
- Department of Applied Chemistry School of Science Xi'an Jiaotong University No. 28 West Xianning Road Xi'an Shaanxi 710049 P. R. China
| | - Manping Qian
- Key Laboratory of Analytical Chemistry for Life Science of Shaanxi Province School of Chemistry and Chemical Engineering Shaanxi Normal University No. 620, West Chang'an Avenue Xi'an 710119 P. R. China
| | - Ke Wang
- Key Laboratory of Analytical Chemistry for Life Science of Shaanxi Province School of Chemistry and Chemical Engineering Shaanxi Normal University No. 620, West Chang'an Avenue Xi'an 710119 P. R. China
| | - Honglan Qi
- Key Laboratory of Analytical Chemistry for Life Science of Shaanxi Province School of Chemistry and Chemical Engineering Shaanxi Normal University No. 620, West Chang'an Avenue Xi'an 710119 P. R. China
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13
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Shimizu M, Nagano S, Kinoshita T. Dual Emission from Precious Metal‐Free Luminophores Consisting of C, H, O, Si, and S/P at Room Temperature. Chemistry 2020; 26:5162-5167. [DOI: 10.1002/chem.201905820] [Citation(s) in RCA: 14] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/26/2019] [Revised: 01/15/2020] [Indexed: 12/19/2022]
Affiliation(s)
- Masaki Shimizu
- Faculty of Molecular Chemistry and EngineeringKyoto Institute of Technology 1 Hashikami-cho, Matsugasaki, Sakyo-ku Kyoto 606-8585 Japan
| | - Sho Nagano
- Faculty of Molecular Chemistry and EngineeringKyoto Institute of Technology 1 Hashikami-cho, Matsugasaki, Sakyo-ku Kyoto 606-8585 Japan
| | - Takumi Kinoshita
- Faculty of Molecular Chemistry and EngineeringKyoto Institute of Technology 1 Hashikami-cho, Matsugasaki, Sakyo-ku Kyoto 606-8585 Japan
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Nakamura S, Okamoto M, Tohnai N, Nakayama KI, Nishii Y, Miura M. Synthesis and Properties of Tri- tert-butylated Trioxa and Trithia Analogues of Truxene. BULLETIN OF THE CHEMICAL SOCIETY OF JAPAN 2020. [DOI: 10.1246/bcsj.20190269] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Affiliation(s)
- Shotaro Nakamura
- Department of Applied Chemistry, Graduate School of Engineering, Osaka University, Suita, Osaka 565-0871, Japan
| | - Michitaka Okamoto
- Department of Material and Life Science, Graduate School of Engineering, Osaka University, Suita, Osaka 565-0871, Japan
| | - Norimitsu Tohnai
- Department of Material and Life Science, Graduate School of Engineering, Osaka University, Suita, Osaka 565-0871, Japan
| | - Ken-ichi Nakayama
- Department of Material and Life Science, Graduate School of Engineering, Osaka University, Suita, Osaka 565-0871, Japan
| | - Yuji Nishii
- Frontier Research Base for Global Young Researchers, Graduate School of Engineering, Suita, Osaka 565-0871, Japan
| | - Masahiro Miura
- Department of Applied Chemistry, Graduate School of Engineering, Osaka University, Suita, Osaka 565-0871, Japan
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15
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Ma H, Yu H, Peng Q, An Z, Wang D, Shuai Z. Hydrogen Bonding-Induced Morphology Dependence of Long-Lived Organic Room-Temperature Phosphorescence: A Computational Study. J Phys Chem Lett 2019; 10:6948-6954. [PMID: 31652064 DOI: 10.1021/acs.jpclett.9b02568] [Citation(s) in RCA: 52] [Impact Index Per Article: 10.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/10/2023]
Abstract
Organic room-temperature phosphorescence (RTP) is generally only exhibited in aggregate with strong dependence on morphology, which is highly sensitive to the intermolecular hydrogen bonding interaction. Here, 4,4'-bis(9H-carbazol-9-yl)methanone (Cz2BP), emitting RTP in a cocrystal consisting of chloroform but not in the amorphous nor in the crystal phase, was investigated to disclose the morphology dependence through molecular dynamics simulations and first-principles calculations. We find that the strong intermolecular C═O···H-C hydrogen bonds between Cz2BP and chloroform in cocrystals decrease the nonradiative decay rate of T1 → S0 by 3-6 orders of magnitude due to the vibronic decoupling effect on the C═O stretching motion and the increase of (π,π*) composition in the T1 state. The former is responsible for high efficiency and the latter for long-lived RTP with a calculated lifetime of 208 ms (exp. 353 ms). Nevertheless, the weak hydrogen bonds cannot cause any appreciable RTP in amorphous and crystal phases. This novel understanding opens a way to design organic RTP materials.
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Affiliation(s)
- Huili Ma
- Key Laboratory of Flexible Electronics (KLOFE) and Institute of Advanced Materials (IAM) , Nanjing Tech University , Nanjing 211816 , People's Republic of China
| | - Hongde Yu
- Key Laboratory of Organic OptoElectronics and Molecular Engineering, Department of Chemistry , Tsinghua University , Beijing 100084 , People's Republic of China
| | - Qian Peng
- Key Laboratory of Organic Solids, Beijing National Laboratory for Molecular Science (BNLMS) , Institute of Chemistry, Chinese Academy of Sciences , Beijing 100190 , People's Republic of China
| | - Zhongfu An
- Key Laboratory of Flexible Electronics (KLOFE) and Institute of Advanced Materials (IAM) , Nanjing Tech University , Nanjing 211816 , People's Republic of China
| | - Dong Wang
- Key Laboratory of Organic OptoElectronics and Molecular Engineering, Department of Chemistry , Tsinghua University , Beijing 100084 , People's Republic of China
| | - Zhigang Shuai
- Key Laboratory of Organic OptoElectronics and Molecular Engineering, Department of Chemistry , Tsinghua University , Beijing 100084 , People's Republic of China
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16
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17
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Zhang ZY, Liu Y. Ultralong room-temperature phosphorescence of a solid-state supramolecule between phenylmethylpyridinium and cucurbit[6]uril. Chem Sci 2019; 10:7773-7778. [PMID: 31588325 PMCID: PMC6764277 DOI: 10.1039/c9sc02633a] [Citation(s) in RCA: 81] [Impact Index Per Article: 16.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/30/2019] [Accepted: 06/28/2019] [Indexed: 12/23/2022] Open
Abstract
Long-lived organic room-temperature phosphorescence (RTP) has received great attention because of its various potential applications. Herein, we report a persistent RTP of a solid-state supramolecule between a cucurbit[6]uril (CB[6]) host and a heavy-atom-free phenylmethylpyridinium guest. Significantly, the long-lived phosphorescence completely depends on the host-guest complexation, revealing that the non-phosphorescent guest exhibits a 2.62 s ultralong lifetime after being complexed by CB[6] under ambient conditions. The ultralong RTP is because of tight encapsulation of CB[6], which boosts intersystem crossing, suppresses nonradiative relaxation and possibly shields quenchers. Moreover, several phosphorescent complexes possessing different lifetimes are prepared and successfully applied in triple lifetime-encoding for data encryption and anti-counterfeiting. This strategy provides a new insight for realizing purely organic RTP with ultralong lifetime and expands its application in the field of information protection.
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Affiliation(s)
- Zhi-Yuan Zhang
- Department of Chemistry , State Key Laboratory of Elemento-Organic Chemistry , Nankai University , Tianjin 300071 , P. R. China .
| | - Yu Liu
- Department of Chemistry , State Key Laboratory of Elemento-Organic Chemistry , Nankai University , Tianjin 300071 , P. R. China .
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