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Katkova SA, Kozina DO, Kisel KS, Sandzhieva MA, Tarvanen DA, Makarov SV, Porsev VV, Tunik SP, Kinzhalov MA. Cyclometalated platinum(II) complexes with acyclic diaminocarbene ligands for OLED application. Dalton Trans 2023; 52:4595-4605. [PMID: 36928166 DOI: 10.1039/d3dt00080j] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/06/2023]
Abstract
A novel series of cyclometalated platinum(II) complexes bearing acyclic diaminocarbene (ADC) ancillary ligands were designed and prepared. Their photophysical properties were systematically studied through experimental and theoretical investigations. All complexes exhibit green phosphorescence with a quantum efficiency of up to 45% in 2 wt% doped PMMA film at room temperature. The complexes are used as light-emitting dopants for organic light-emitting diode (OLED) fabrication. The devices displayed a green emission with a maximum current efficiency of 2.9 cd A-1 and a luminance of 2700 cd m-2. These results show that these cyclometalated platinum(II) complexes can be used as efficient green emitting components of OLED devices.
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Affiliation(s)
- Svetlana A Katkova
- St Petersburg University, 7/9 Universitetskaya Nab., Saint Petersburg, 199034, Russian Federation.
| | - Daria O Kozina
- St Petersburg University, 7/9 Universitetskaya Nab., Saint Petersburg, 199034, Russian Federation.
| | - Kristina S Kisel
- St Petersburg University, 7/9 Universitetskaya Nab., Saint Petersburg, 199034, Russian Federation.
| | - Maria A Sandzhieva
- School of Physics and Engineering, ITMO University, Lomonosova 9, 197101, St. Petersburg, Russian Federation
| | - Dmitriy A Tarvanen
- School of Physics and Engineering, ITMO University, Lomonosova 9, 197101, St. Petersburg, Russian Federation
| | - Sergey V Makarov
- School of Physics and Engineering, ITMO University, Lomonosova 9, 197101, St. Petersburg, Russian Federation.,Harbin Engineering University, Harbin 150001, Heilongjiang, China.,Qingdao Innovation and Development Center of Harbin Engineering University, Qingdao 266000, Shandong, China
| | - Vitaly V Porsev
- St Petersburg University, 7/9 Universitetskaya Nab., Saint Petersburg, 199034, Russian Federation.
| | - Sergey P Tunik
- St Petersburg University, 7/9 Universitetskaya Nab., Saint Petersburg, 199034, Russian Federation.
| | - Mikhail A Kinzhalov
- St Petersburg University, 7/9 Universitetskaya Nab., Saint Petersburg, 199034, Russian Federation. .,Research School of Chemistry and Applied Biomedical Sciences, Tomsk Polytechnic University, 634050 Tomsk, Russian Federation
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2
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Shen Y, Kong X, Yang F, Bian HD, Cheng G, Cook TR, Zhang Y. Deep Blue Phosphorescence from Platinum Complexes Featuring Cyclometalated N-Pyridyl Carbazole Ligands with Monocarborane Clusters (CB 11H 12-). Inorg Chem 2022; 61:16707-16717. [PMID: 36205461 DOI: 10.1021/acs.inorgchem.2c02467] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
The utilization of deep blue phosphorescent materials in high-performance displays and solid-state lighting requires high quantum efficiencies and color purities. Here, we describe the preparation and luminescent properties of novel platinum triplet emitters featuring cyclometalated N-pyridyl-carbazole ligands functionalized with closo-monocarborane clusters [CB11H12]-. All reported complexes were fully characterized by using standard small molecule techniques (UV-vis, cyclic voltammetry, nuclear magnetic resonance (NMR), high-resolution mass spectrometry (HRMS)), and their solid-state structures were elucidated by X-ray diffraction. These platinum phosphors emit in the blue region of the visible wavelength spectrum in both the solid and solution states. Complex 4a exhibits the highest luminous efficiency at λem = 439 nm with a photoluminescent quantum yield (PLQY) of 60% by dispersing in a PMMA matrix. Electrochemical and computational studies of complexes 4a and 4b revealed that the blue phosphorescence originates mainly from intraligand 3π → π* (3ILCT) transitions with relatively small 3MLCT mixing. A deep-blue OLED containing 4a as the light-emitting dopant was successfully fabricated using a solution-processed method, and the device exhibited blue photoluminescence with CIE coordinates of (0.17, 0.15) and a maximum external quantum efficiency (EQEmax) value of 6.2%. This article represents the pioneering study of a deep blue PhOLED using a Pt complex bearing a closo-monocarborane anion substituent, providing a new avenue into the preparation of novel triplet emitters based on boron-rich cluster anions.
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Affiliation(s)
- Yunjun Shen
- Key Laboratory of Chemistry and Engineering of Forest Products, State Ethnic Affairs Commission, Guangxi Key Laboratory of Chemistry and Engineering of Forest Products, Guangxi Collaborative Innovation Center for Chemistry and Engineering of Forest Products, School of Chemistry and Chemical Engineering, Guangxi Minzu University, No. 158, Daxue West Road, Nanning, Guangxi 530006, China
| | - Xiangjun Kong
- Key Laboratory of Chemistry and Engineering of Forest Products, State Ethnic Affairs Commission, Guangxi Key Laboratory of Chemistry and Engineering of Forest Products, Guangxi Collaborative Innovation Center for Chemistry and Engineering of Forest Products, School of Chemistry and Chemical Engineering, Guangxi Minzu University, No. 158, Daxue West Road, Nanning, Guangxi 530006, China
| | - Fengjie Yang
- Key Laboratory of Chemistry and Engineering of Forest Products, State Ethnic Affairs Commission, Guangxi Key Laboratory of Chemistry and Engineering of Forest Products, Guangxi Collaborative Innovation Center for Chemistry and Engineering of Forest Products, School of Chemistry and Chemical Engineering, Guangxi Minzu University, No. 158, Daxue West Road, Nanning, Guangxi 530006, China
| | - He-Dong Bian
- Key Laboratory of Chemistry and Engineering of Forest Products, State Ethnic Affairs Commission, Guangxi Key Laboratory of Chemistry and Engineering of Forest Products, Guangxi Collaborative Innovation Center for Chemistry and Engineering of Forest Products, School of Chemistry and Chemical Engineering, Guangxi Minzu University, No. 158, Daxue West Road, Nanning, Guangxi 530006, China
| | - Gang Cheng
- State Key Laboratory of Synthetic Chemistry, HKU-CAS Joint Laboratory on New Materials, Department of Chemistry, The University of Hong Kong, Pokfulam Road, Hong Kong SAR, China
| | - Timothy R Cook
- Department of Chemistry, University at Buffalo, The State University of New York, 856 Natural Sciences Complex, Buffalo, New York 14260, United States
| | - Yuzhen Zhang
- Key Laboratory of Chemistry and Engineering of Forest Products, State Ethnic Affairs Commission, Guangxi Key Laboratory of Chemistry and Engineering of Forest Products, Guangxi Collaborative Innovation Center for Chemistry and Engineering of Forest Products, School of Chemistry and Chemical Engineering, Guangxi Minzu University, No. 158, Daxue West Road, Nanning, Guangxi 530006, China
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3
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Maganti T, Venkatesan K. The Search for Efficient True Blue and Deep Blue Emitters: An Overview of Platinum Carbene Acetylide Complexes. Chempluschem 2022; 87:e202200014. [PMID: 35499257 DOI: 10.1002/cplu.202200014] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/17/2022] [Revised: 03/27/2022] [Indexed: 11/08/2022]
Abstract
Despite significant strides achieved in organic light emitting diode (OLED) based display technologies during the last decade, the search for highly stable and efficient true blue/deep blue emitters continues to remain elusive. During the past decade, emitters with the basic molecular scaffold consisting of Pt(II) acetylides and N-heterocyclic carbene (NHC) ligands have opened interesting opportunities to tune the emission properties with desired chromaticity in the blue and deep blue region. With an aim to achieve the desired CIE coordinates along with low device roll-off efficiencies and satisfactory color purity, a number of variations on the basic molecular fragment have been made. A number of NHC Pt(II) alkyne complexes bearing monodentate, bidentate and tridentate ligands have been synthesized and their photophysical investigations have been reported. Although NHC Pt(II) alkyne complexes have been explored in other areas of applications, much of the investigations have been primarily focused for their interesting emission properties appearing particularly in the shorter wavelength (450-495 nm) part of the electromagnetic spectrum for organic light emitting diode (OLED) devices. In this review, we provide an overview of the investigated NHC Pt(II) acetylide complexes by detailing their synthesis, luminescence properties, performance in devices and future perspectives.
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Affiliation(s)
- Teja Maganti
- School of Natural Sciences, MQ Photonics Research Centre and MQ Sustainable Energy Research Centre, Macquarie University, Sydney, NSW 2109, Australia
| | - Koushik Venkatesan
- School of Natural Sciences, MQ Photonics Research Centre and MQ Sustainable Energy Research Centre, Macquarie University, Sydney, NSW 2109, Australia
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4
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Intermolecular (Isocyano group)···PtII interactions involving coordinated isocyanides in cyclometalated PtII complexes. J Mol Struct 2022. [DOI: 10.1016/j.molstruc.2021.132230] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/30/2022]
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5
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Kinzhalov MA, Grachova EV, Luzyanin KV. Tuning the luminescence of transition metal complexes with acyclic diaminocarbene ligands. Inorg Chem Front 2022. [DOI: 10.1039/d1qi01288f] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
Abstract
Organometallics featuring acyclic diaminocarbene ligands have recently emerged as powerful emitters for use in electroluminescent technologies.
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Affiliation(s)
- Mikhail A. Kinzhalov
- St Petersburg University, 7/9 Universitetskaya Nab., Saint Petersburg, 199034, Russia
| | - Elena V. Grachova
- St Petersburg University, 7/9 Universitetskaya Nab., Saint Petersburg, 199034, Russia
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6
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Nguyen HMT, Dung TN, Trang NV, Cuong NT, Minh NV, Nguyen H, Nguyen MT. Design of fused bithiophene systems containing silole and five-membered heterocycles for optoelectronic materials. Chem Phys Lett 2021. [DOI: 10.1016/j.cplett.2021.139093] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
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7
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Katkova SA, Leshchev AA, Mikherdov AS, Kinzhalov MA. Synthesis of Cyclometalated Platinum(II) Complex with an Alkynyl-Substituted Isocyanide Ligand, Its Structure and Photophysical Properties. RUSS J GEN CHEM+ 2020. [DOI: 10.1134/s1070363220040143] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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8
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Yan X, Zhang H, Cai W, Zhao A, Wang J, Shen W. Effects of intramolecular hydrogen bonds on phosphorescence emission: A theoretical perspective. Appl Organomet Chem 2020. [DOI: 10.1002/aoc.5527] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Affiliation(s)
- Xi Yan
- School of Chemistry and Chemical Engineering, Southwest University Chongqing 400715 China
| | - Huize Zhang
- School of Chemistry and Chemical Engineering, Southwest University Chongqing 400715 China
| | - Wanlin Cai
- School of Chemistry and Chemical Engineering, Southwest University Chongqing 400715 China
| | - Ancong Zhao
- School of Chemistry and Chemical Engineering, Southwest University Chongqing 400715 China
| | - Jian Wang
- School of Elementary Education, Chongqing Normal University Chongqing 400715 China
| | - Wei Shen
- School of Chemistry and Chemical Engineering, Southwest University Chongqing 400715 China
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10
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Titov AA, Filippov OA, Smol’yakov AF, Godovikov IA, Shakirova JR, Tunik SP, Podkorytov IS, Shubina ES. Luminescent Complexes of the Trinuclear Silver(I) and Copper(I) Pyrazolates Supported with Bis(diphenylphosphino)methane. Inorg Chem 2019; 58:8645-8656. [DOI: 10.1021/acs.inorgchem.9b00991] [Citation(s) in RCA: 24] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/14/2023]
Affiliation(s)
- A. A. Titov
- A. N. Nesmeyanov Institute of Organoelement Compounds, Russian Academy of Sciences, Vavilov Str., 28, 119991 Moscow, Russia
| | - O. A. Filippov
- A. N. Nesmeyanov Institute of Organoelement Compounds, Russian Academy of Sciences, Vavilov Str., 28, 119991 Moscow, Russia
| | - A. F. Smol’yakov
- A. N. Nesmeyanov Institute of Organoelement Compounds, Russian Academy of Sciences, Vavilov Str., 28, 119991 Moscow, Russia
- Inorganic Chemistry Department, Peoples’ Friendship University of Russia, Miklukho-Maklaya str. 6, 117198, Moscow, Russia
- Plekhanov Russian University of Economics, Stremyanny per. 36, Moscow, 117997, Russian Federation
| | - I. A. Godovikov
- A. N. Nesmeyanov Institute of Organoelement Compounds, Russian Academy of Sciences, Vavilov Str., 28, 119991 Moscow, Russia
| | - J. R. Shakirova
- Institute of Chemistry, St. Petersburg State University Universitetskii pr., 26 198504, St. Petersburg, Russia
| | - S. P. Tunik
- Institute of Chemistry, St. Petersburg State University Universitetskii pr., 26 198504, St. Petersburg, Russia
| | - I. S. Podkorytov
- St. Petersburg State University, Laboratory of Biomolecular NMR, St. Petersburg, Universitetskaya nab. 7/9, 199034, Russia
| | - E. S. Shubina
- A. N. Nesmeyanov Institute of Organoelement Compounds, Russian Academy of Sciences, Vavilov Str., 28, 119991 Moscow, Russia
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11
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Vivancos Á, Bautista D, González-Herrero P. Luminescent Platinum(IV) Complexes Bearing Cyclometalated 1,2,3-Triazolylidene and Bi- or Terdentate 2,6-Diarylpyridine Ligands. Chemistry 2019; 25:6014-6025. [PMID: 30807669 DOI: 10.1002/chem.201900489] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/31/2019] [Indexed: 11/11/2022]
Abstract
The synthesis, structure, and photophysical properties of luminescent PtIV complexes that combine cyclometalated 1,2,3-triazolylidene and bi- or terdentate 2,6-diarylpyridine ligands are reported. The targeted complexes represent the first examples of PtIV species with a cyclometalated mesoionic aryl-NHC ligand. They exhibit moderate or weak emissions in fluid solution at 298 K arising from 3 LC states, which become very intense in poly(methyl methacrylate) (PMMA) matrices at 298 K. DFT and TD-DFT calculations confirm that the chromophoric ligand is the cyclometalated 2,6-diarylpyridine and show that the aryl-NHC ligand exerts a beneficial effect on the emission efficiencies of these derivatives by increasing the energy of deactivating LMCT excited states with respect to comparable PtIV complexes with cyclometalated 2-arylpyridine ligands.
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Affiliation(s)
- Ángela Vivancos
- Departamento de Química Inorgánica, Facultad de Química, Universidad de Murcia, Apdo. 4021, 30071, Murcia, Spain
| | - Delia Bautista
- SAI, Universidad de Murcia, Apdo. 4021, 30071, Murcia, Spain
| | - Pablo González-Herrero
- Departamento de Química Inorgánica, Facultad de Química, Universidad de Murcia, Apdo. 4021, 30071, Murcia, Spain
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12
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Atoini Y, Prasetyanto EA, Chen P, Silvestrini S, Harrowfield J, De Cola L. Luminescence of Amphiphilic Pt II Complexes Controlled by Confinement. Chemistry 2018; 24:12054-12060. [PMID: 30035830 DOI: 10.1002/chem.201802743] [Citation(s) in RCA: 21] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/29/2018] [Revised: 07/12/2018] [Indexed: 11/07/2022]
Abstract
The formation of hybrid silica-based systems to study the effect of the confinement on the emission properties of self-assembled platinum(II) complexes is reported. The complexes behave as surfactants since they possess a hydrophobic moiety and, on the ancillary ligand, a relatively long hydrophilic chain terminated with a positively charged group. The compounds, soluble in water, self-assemble, even at very low concentration, in supramolecular structures which display an orange luminescence. The properties of the assemblies have been studied in detail and in order to stabilize these supramolecular architectures and to enhance their emission properties hybrid silica porous nanoparticles have been prepared. In particular the PtII complexes have been employed as co-surfactant for the template formation of mesoporous silica nanoparticles (MSNs) using a sol gel synthesis. Interestingly, upon encapsulation in the silica pores, the platinum aggregates exhibit an emission profile similar in energy to the complexes assembled in solution, but the photoluminescence quantum yields of the hybrid systems are significantly higher (up to 45 %), and the excited state lifetimes much longer than those recorded in solution. Such enhancement of the photophysical properties together with the possibility to process the hybrid silica nanomaterials can pave the way to new type of emitters.
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Affiliation(s)
- Youssef Atoini
- Laboratoire de Chimie et des Biomatériaux Supramoléculaires, Institut de Science et d'Ingénierie Supramoléculaires (ISIS-UMR 7006), Université de Strasbourg-CNRS, 8 Rue Gaspard Monge, 67000, Strasbourg, France
| | - Eko Adi Prasetyanto
- Laboratoire de Chimie et des Biomatériaux Supramoléculaires, Institut de Science et d'Ingénierie Supramoléculaires (ISIS-UMR 7006), Université de Strasbourg-CNRS, 8 Rue Gaspard Monge, 67000, Strasbourg, France.,Faculty of Medicine, Atma Jaya Catholic University of Indonesia, Jl. Pluit Raya 2, 14440, Jakarta, Indonesia
| | - Pengkun Chen
- Laboratoire de Chimie et des Biomatériaux Supramoléculaires, Institut de Science et d'Ingénierie Supramoléculaires (ISIS-UMR 7006), Université de Strasbourg-CNRS, 8 Rue Gaspard Monge, 67000, Strasbourg, France
| | - Simone Silvestrini
- Laboratoire de Chimie et des Biomatériaux Supramoléculaires, Institut de Science et d'Ingénierie Supramoléculaires (ISIS-UMR 7006), Université de Strasbourg-CNRS, 8 Rue Gaspard Monge, 67000, Strasbourg, France
| | - Jack Harrowfield
- Laboratoire de Chimie Supramoléculaire, Institut de Science et d'Ingénierie Supramoléculaires (ISIS-UMR 7006), Université de Strasbourg-CNRS, 8 Rue Gaspard Monge, 67000, Strasbourg, France
| | - Luisa De Cola
- Laboratoire de Chimie et des Biomatériaux Supramoléculaires, Institut de Science et d'Ingénierie Supramoléculaires (ISIS-UMR 7006), Université de Strasbourg-CNRS, 8 Rue Gaspard Monge, 67000, Strasbourg, France.,Hybrid Nanomaterials Unit, Institute for Nanotechnology, Karlsruhe Institute of Technology, Campus North, Hermann-von-Helmholtz-Platz 1, 76344, Eggenstein-Leopoldshafen, Germany
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13
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Sivchik V, Sarker RK, Liu ZY, Chung KY, Grachova EV, Karttunen AJ, Chou PT, Koshevoy IO. Improvement of the Photophysical Performance of Platinum-Cyclometalated Complexes in Halogen-Bonded Adducts. Chemistry 2018; 24:11475-11484. [PMID: 29874401 DOI: 10.1002/chem.201802182] [Citation(s) in RCA: 29] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/02/2018] [Indexed: 01/28/2023]
Abstract
Three groups of luminescent platinum complexes [Pt(C^N)(L)(Y)] [C^N=benzothienyl-pyridine (1), bezofuryl-pyridine (2), phenyl-pyridine (3); L/Y=DMSO/Cl (a), PPh3 /Cl (b), PPh3 /CN (c)] have been probed as halogen-bond (XB) acceptors towards iodofluorobenzenes (IC6 F5 and I2 C6 F4 ). Compounds 1 a and 2 a (L/Y=DMSO/Cl) afford the adducts 1 a⋅⋅⋅I2 C6 F4 and 2 a⋅⋅⋅I2 C6 F4 , which feature I⋅⋅⋅Sbtpy /I⋅⋅⋅πbtpy and I⋅⋅⋅ODMSO /I⋅⋅⋅Cl short contacts, respectively. The phosphane-cyanide derivatives 1 c and 2 c (L/Y=PPh3 /CN) co-crystallise with both IC6 F5 and I2 C6 F4 . None of the phpy-based species 3 a-3 c participated in XB interactions. Although the native complexes are rather poor luminophores in the solid state (Φem =0.023-0.089), the adducts exhibit an up to 10-fold increase of the intensity with a minor alteration of the emission energy. The observed gain in the quantum efficiency is mainly attributed to the joint influence of non-covalent interactions (halogen/hydrogen bonding, π-π stacking), which govern the crystal-packing mode and diminish the radiationless pathways for the T1 →S0 transition by providing a rigid environment around the chromophore.
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Affiliation(s)
- Vasily Sivchik
- Department of Chemistry, University of Eastern Finland, 80101, Joensuu, Finland
| | - Rajib Kumar Sarker
- Department of Chemistry, University of Eastern Finland, 80101, Joensuu, Finland
| | - Zong-Ying Liu
- Department of Chemistry, National Taiwan University, Taipei, 106, Taiwan
| | - Kun-You Chung
- Department of Chemistry, National Taiwan University, Taipei, 106, Taiwan
| | - Elena V Grachova
- Institute of Chemistry, St.-Petersburg State University, 26 Universitetskiy pr., Petergof, St.-Petersburg, Russia
| | - Antti J Karttunen
- Department of Chemistry and Materials Science, Aalto University, FI-00076, Aalto, Finland
| | - Pi-Tai Chou
- Department of Chemistry, National Taiwan University, Taipei, 106, Taiwan
| | - Igor O Koshevoy
- Department of Chemistry, University of Eastern Finland, 80101, Joensuu, Finland
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14
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Yan X, Li W, Zhang H, Cai W, Wang J, Shen W. DFT/TDDFT insight into the impact of ring size of the NHC chelating unit of high effective phosphorescent Platinum (II) complexes. Appl Organomet Chem 2018. [DOI: 10.1002/aoc.4467] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Affiliation(s)
- Xi Yan
- School of Chemistry and Chemical Engineering; Southwest University; Chongqing 400715 China
| | - Wenqian Li
- School of Chemistry and Chemical Engineering; Southwest University; Chongqing 400715 China
| | - Huize Zhang
- School of Chemistry and Chemical Engineering; Southwest University; Chongqing 400715 China
| | - Wanlin Cai
- School of Chemistry and Chemical Engineering; Southwest University; Chongqing 400715 China
| | - Jian Wang
- School of Elementary Education; Chongqing Normal University; Chongqing 400715 China
| | - Wei Shen
- School of Chemistry and Chemical Engineering; Southwest University; Chongqing 400715 China
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15
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New Pt(II) complex with extra pure green emission for OLED application: synthesis, crystal structure and spectral properties. J Organomet Chem 2018. [DOI: 10.1016/j.jorganchem.2018.01.037] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/10/2023]
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16
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Binuclear luminescent Pt(II) complexes based on substituted 3,6-diphenylpyridazines; synthesis and photophysical study. J Organomet Chem 2018. [DOI: 10.1016/j.jorganchem.2017.12.023] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/02/2023]
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17
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Schinabeck A, Leitl MJ, Yersin H. Dinuclear Cu(I) Complex with Combined Bright TADF and Phosphorescence. Zero-Field Splitting and Spin-Lattice Relaxation Effects of the Triplet State. J Phys Chem Lett 2018; 9:2848-2856. [PMID: 29750529 DOI: 10.1021/acs.jpclett.8b00957] [Citation(s) in RCA: 40] [Impact Index Per Article: 6.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 05/23/2023]
Abstract
The three-fold bridged dinuclear Cu(I) complex Cu2(μ-I)2(1 N- n-butyl-5-diphenyl-phosphino-1,2,4-triazole)3, Cu2I2(P^N)3, shows bright thermally activated delayed fluorescence (TADF) as well as phosphorescence at ambient temperature with a total quantum yield of 85% at an emission decay time of 7 μs. The singlet (S1)-triplet (T1) energy gap is as small as only 430 cm-1 (53 meV). Spin-orbit coupling induces a short-lived phosphorescence with a decay time of 52 μs ( T = 77 K) and a distinct zero-field splitting (ZFS) of T1 into substates by ∼2.5 cm-1 (0.3 meV). Below T ≈ 10 K, effects of spin-lattice relaxation (SLR) are observed and agree with the size of ZFS. According to the combined phosphorescence and TADF, the overall emission decay time is reduced by ∼13% as compared to the TADF-only process. The compound may potentially be applied in solution-processed OLEDs, exploiting both the singlet and triplet harvesting mechanisms.
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Affiliation(s)
- Alexander Schinabeck
- Institut für Physikalische Chemie , University of Regensburg , 93040 Regensburg , Germany
| | - Markus J Leitl
- Institut für Physikalische Chemie , University of Regensburg , 93040 Regensburg , Germany
| | - Hartmut Yersin
- Institut für Physikalische Chemie , University of Regensburg , 93040 Regensburg , Germany
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19
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Elie M, Renaud JL, Gaillard S. N -Heterocyclic carbene transition metal complexes in light emitting devices. Polyhedron 2018. [DOI: 10.1016/j.poly.2017.11.045] [Citation(s) in RCA: 51] [Impact Index Per Article: 8.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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20
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Xu Y, Wang J, Zhang W, Li W, Shen W. Excited state intersystem crossing and the relaxation dynamics of phosphorescent Ir(III) complexes bearing bipyridine-based C^N ligand. J Photochem Photobiol A Chem 2017. [DOI: 10.1016/j.jphotochem.2017.06.002] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
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21
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Morello GR. Accurate prediction of emission energies with TD-DFT methods for platinum and iridium OLED materials. J Mol Model 2017; 23:174. [DOI: 10.1007/s00894-017-3348-2] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/10/2017] [Accepted: 04/18/2017] [Indexed: 01/21/2023]
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22
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Vlakh EG, Grachova EV, Zhukovsky DD, Hubina AV, Mikhailova AS, Shakirova JR, Sharoyko VV, Tunik SP, Tennikova TB. Self-assemble nanoparticles based on polypeptides containing C-terminal luminescent Pt-cysteine complex. Sci Rep 2017; 7:41991. [PMID: 28155880 PMCID: PMC5290470 DOI: 10.1038/srep41991] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/08/2016] [Accepted: 01/04/2017] [Indexed: 12/20/2022] Open
Abstract
The growing attention to the luminescent nanocarriers is strongly stimulated by their potential application as drug delivery systems and by the necessity to monitor their distribution in cells and tissues. In this communication we report on the synthesis of amphiphilic polypeptides bearing C-terminal phosphorescent label together with preparation of nanoparticles using the polypeptides obtained. The approach suggested is based on a unique and highly technological process where the new phosphorescent Pt-cysteine complex serves as initiator of the ring-opening polymerization of α-amino acid N-carboxyanhydrides to obtain the polypeptides bearing intact the platinum chromophore covalently bound to the polymer chain. It was established that the luminescent label retains unchanged its emission characteristics not only in the polypeptides but also in more complicated nanoaggregates such as the polymer derived amphiphilic block-copolymers and self-assembled nanoparticles. The phosphorescent nanoparticles display no cytotoxicity and hemolytic activity in the tested range of concentrations and easily internalize into living cells that makes possible in vivo cell visualization, including prospective application in time resolved imaging and drug delivery monitoring.
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Affiliation(s)
- E. G. Vlakh
- Saint-Petersburg State University, Institute of Chemistry, Universitetsky pr. 26, 198504 St. Petersburg, Russia
| | - E. V. Grachova
- Saint-Petersburg State University, Institute of Chemistry, Universitetsky pr. 26, 198504 St. Petersburg, Russia
| | - D. D. Zhukovsky
- Saint-Petersburg State University, Institute of Chemistry, Universitetsky pr. 26, 198504 St. Petersburg, Russia
| | - A. V. Hubina
- Saint-Petersburg State University, Institute of Chemistry, Universitetsky pr. 26, 198504 St. Petersburg, Russia
| | - A. S. Mikhailova
- Saint-Petersburg State University, Institute of Chemistry, Universitetsky pr. 26, 198504 St. Petersburg, Russia
| | - J. R. Shakirova
- Saint-Petersburg State University, Institute of Chemistry, Universitetsky pr. 26, 198504 St. Petersburg, Russia
| | - V. V. Sharoyko
- Saint-Petersburg State University, Institute of Chemistry, Universitetsky pr. 26, 198504 St. Petersburg, Russia
| | - S. P. Tunik
- Saint-Petersburg State University, Institute of Chemistry, Universitetsky pr. 26, 198504 St. Petersburg, Russia
| | - T. B. Tennikova
- Saint-Petersburg State University, Institute of Chemistry, Universitetsky pr. 26, 198504 St. Petersburg, Russia
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23
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Solomatina AI, Aleksandrova IO, Karttunen AJ, Tunik SP, Koshevoy IO. Dibenzothiophene-platinated complexes: probing the effect of ancillary ligands on the photophysical performance. Dalton Trans 2017; 46:3895-3905. [DOI: 10.1039/c7dt00349h] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/11/2023]
Abstract
Alteration of the ancillary mono- and bidentate ligands was used to influence the photoemission behaviour of a family of cyclometalated platinum complexes.
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Affiliation(s)
| | | | | | | | - Igor O. Koshevoy
- University of Eastern Finland
- Department of Chemistry
- Joensuu
- Finland
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24
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Bhaskar R, Sharma AK, Yadav MK, Singh AK. Sonogashira (Cu and amine free) and Suzuki coupling in air catalyzed via nanoparticles formed in situ from Pd(ii) complexes of chalcogenated Schiff bases of 1-naphthaldehyde and their reduced forms. Dalton Trans 2017; 46:15235-15248. [DOI: 10.1039/c7dt02701j] [Citation(s) in RCA: 26] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/26/2022]
Abstract
The activation of the coupling reactions with the Pd(ii)-complexes (0.05–0.01 mol% loading) is significant in 1–2 h under mild conditions.
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Affiliation(s)
- Renu Bhaskar
- Department of Chemistry
- Indian Institute of Technology Delhi
- New Delhi 110016
- India
| | - Alpesh K. Sharma
- Department of Chemistry
- Indian Institute of Technology Delhi
- New Delhi 110016
- India
| | - Manoj K. Yadav
- Department of Chemistry
- Indian Institute of Technology Delhi
- New Delhi 110016
- India
| | - Ajai K. Singh
- Department of Chemistry
- Indian Institute of Technology Delhi
- New Delhi 110016
- India
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25
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Zhang W, Luo Y, Xu Y, Li W, Shen W. Theoretical Investigation and Design of Highly Efficient Blue Phosphorescent Iridium(III) Complexes Bearing Fluorinated Aromatic Sulfonyl Groups. Chemphyschem 2016; 17:4149-4157. [DOI: 10.1002/cphc.201600945] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/26/2016] [Indexed: 11/06/2022]
Affiliation(s)
- Wenting Zhang
- School of Chemistry and Chemical Engineering; Southwest University; 2 Tiansheng Rd, Beibei Chongqing China
| | - Yafei Luo
- School of Chemistry and Chemical Engineering; Southwest University; 2 Tiansheng Rd, Beibei Chongqing China
| | - Yanyan Xu
- School of Chemistry and Chemical Engineering; Southwest University; 2 Tiansheng Rd, Beibei Chongqing China
| | - Wenqian Li
- School of Chemistry and Chemical Engineering; Southwest University; 2 Tiansheng Rd, Beibei Chongqing China
| | - Wei Shen
- School of Chemistry and Chemical Engineering; Southwest University; 2 Tiansheng Rd, Beibei Chongqing China
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26
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Liao JL, Chi Y, Wang JY, Chen ZN, Tsai ZH, Hung WY, Tseng MR, Lee GH. Pt(II) Phosphors Featuring Both Dicarbene and Functional Biazolate Chelates: Synthesis, Luminescent Properties, and Applications in Organic Light-Emitting Diodes. Inorg Chem 2016; 55:6394-404. [DOI: 10.1021/acs.inorgchem.6b00097] [Citation(s) in RCA: 28] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/04/2023]
Affiliation(s)
- Jia-Ling Liao
- Department
of Chemistry and Low Carbon Energy Research Center, National Tsing Hua University, Hsinchu 30013, Taiwan
| | - Yun Chi
- Department
of Chemistry and Low Carbon Energy Research Center, National Tsing Hua University, Hsinchu 30013, Taiwan
| | - Jin-Yun Wang
- Fujian Institute of Research on the Structure of Matter, CAS, State Key Laboratory of Structural Chemistry, Fuzhou, 350002, China
| | - Zhong-Ning Chen
- Fujian Institute of Research on the Structure of Matter, CAS, State Key Laboratory of Structural Chemistry, Fuzhou, 350002, China
| | - Zheng-Hua Tsai
- Institute of Optoelectronic Sciences, National Taiwan Ocean University, Keelung 202, Taiwan
| | - Wen-Yi Hung
- Institute of Optoelectronic Sciences, National Taiwan Ocean University, Keelung 202, Taiwan
| | - Meu-Rurng Tseng
- Material and Chemical Research Laboratories, Industrial Technology Research Institute, Hsinchu 31040, Taiwan
| | - Gene-Hsiang Lee
- Instrumentation Center, National Taiwan University, Taipei 10617, Taiwan
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27
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Cuerva C, Campo JA, Cano M, Lodeiro C. Platinum(II) Metallomesogens: New External-Stimuli-Responsive Photoluminescence Materials. Chemistry 2016; 22:10168-78. [DOI: 10.1002/chem.201601115] [Citation(s) in RCA: 30] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/09/2016] [Indexed: 12/19/2022]
Affiliation(s)
- Cristián Cuerva
- Departamento de Química Inorgánica I; Facultad de Ciencias Químicas; Universidad Complutense de Madrid, Ciudad Universitaria; 28040 Madrid Spain
| | - José A. Campo
- Departamento de Química Inorgánica I; Facultad de Ciencias Químicas; Universidad Complutense de Madrid, Ciudad Universitaria; 28040 Madrid Spain
| | - Mercedes Cano
- Departamento de Química Inorgánica I; Facultad de Ciencias Químicas; Universidad Complutense de Madrid, Ciudad Universitaria; 28040 Madrid Spain
| | - Carlos Lodeiro
- BIOSCOPE Research Group; UCIBIO@REQUIMTE; Chemistry Department; Faculty of Science and Technology; University NOVA of Lisbon; Caparica Campus 2829-516 Caparica Portugal
- PROTEOMASS Scientific Society; Rua dos Inventores, Madam Parque, Caparica Campus 2829-516 Caparica Portugal
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28
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A curious interplay in the films of N-heterocyclic carbene Pt(II) complexes upon deposition of alkali metals. Sci Rep 2016; 6:25548. [PMID: 27151364 PMCID: PMC4858761 DOI: 10.1038/srep25548] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/10/2015] [Accepted: 04/19/2016] [Indexed: 11/26/2022] Open
Abstract
The recently synthesized series of PtII complexes containing cyclometallating (phenylpyridine or benzoquinoline) and N-heterocyclic carbene ligands possess intriguing structures, topologies, and light emitting properties. Here, we report curious physicochemical interactions between in situ PVD-grown films of a typical representative of the aforementioned PtII complex compounds and Li, Na, K and Cs atoms. Based on a combination of detailed core-level photoelectron spectroscopy and quantum-chemical calculations at the density functional theory level, we found that the deposition of alkali atoms onto the molecular film leads to unusual redistribution of electron density: essential modification of nitrogen sites, reduction of the coordination PtII centre to Pt0 and decrease of electron density on the bromine atoms. A possible explanation for this is formation of a supramolecular system “Pt complex-alkali metal ion”; the latter is supported by restoration of the system to the initial state upon subsequent oxygen treatment. The discovered properties highlight a considerable potential of the PtII complexes for a variety of biomedical, sensing, chemical, and electronic applications.
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29
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Luo Y, Chen Z, Zhang J, Tang Y, Xu Z, Tang D. A cyclometalated (C^C*) platinum(ii) NHC complex decorated via different carboranes to tune the photodeactivation mechanism: a theoretical investigation. RSC Adv 2016. [DOI: 10.1039/c6ra18631a] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
Carboranes with different electronic properties are employed to tune the photodeactivation mechanism of a cyclometalated (C^C*) platinum(ii) NHC complex, including radiative and nonradiative processes.
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Affiliation(s)
- Yafei Luo
- International Academy of Targeted Therapeutics and Innovation
- Chongqing University of Arts and Sciences
- Chongqing 402160
- P. R. China
| | - Zhongzhu Chen
- International Academy of Targeted Therapeutics and Innovation
- Chongqing University of Arts and Sciences
- Chongqing 402160
- P. R. China
| | - Jin Zhang
- International Academy of Targeted Therapeutics and Innovation
- Chongqing University of Arts and Sciences
- Chongqing 402160
- P. R. China
- Chongqing Key Laboratory of Environmental Materials and Remediation Technologies
| | - Ying Tang
- Chongqing Key Laboratory of Environmental Materials and Remediation Technologies
- Research Institute for New Materials Technology
- Chongqing University of Arts and Sciences
- Chongqing 402160
- P. R. China
| | - Zhigang Xu
- International Academy of Targeted Therapeutics and Innovation
- Chongqing University of Arts and Sciences
- Chongqing 402160
- P. R. China
| | - Dianyong Tang
- International Academy of Targeted Therapeutics and Innovation
- Chongqing University of Arts and Sciences
- Chongqing 402160
- P. R. China
- Chongqing Key Laboratory of Environmental Materials and Remediation Technologies
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30
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Xu Y, Luo Y, Zhang W, Li W, Li M, Shen W. Theoretical study and design of cyclometalated platinum complexes bearing innovatively a highly-rigid terdentate ligand with carboranyl as a chelating unit. RSC Adv 2016. [DOI: 10.1039/c6ra14653h] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
The phosphorescence quantum efficiency can be greatly enhanced through suppression of the non-emissive 3MC population by modifications in the ancillary ligand.
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Affiliation(s)
- Yanyan Xu
- College of Chemistry and Chemical Engineering
- Southwest University
- Chongqing 400715
- China
| | - Yafei Luo
- College of Chemistry and Chemical Engineering
- Southwest University
- Chongqing 400715
- China
| | - Wenting Zhang
- College of Chemistry and Chemical Engineering
- Southwest University
- Chongqing 400715
- China
| | - Wenqian Li
- College of Chemistry and Chemical Engineering
- Southwest University
- Chongqing 400715
- China
| | - Ming Li
- College of Chemistry and Chemical Engineering
- Southwest University
- Chongqing 400715
- China
| | - Wei Shen
- College of Chemistry and Chemical Engineering
- Southwest University
- Chongqing 400715
- China
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