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Esteruelas MA, Moreno-Blázquez S, Oliván M, Oñate E. N,C,N-Pincers in Platinum Bimetallic Complexes: Influence of the Pincer and Bridging Ligands on the Metal-Metal Bond and the Photophysical Properties. Inorg Chem 2024; 63:14482-14494. [PMID: 39028899 DOI: 10.1021/acs.inorgchem.4c01712] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 07/21/2024]
Abstract
Precursors PtCl{κ3-N,C,N-[py-C6HMe2-py]} (1), PtCl{κ3-N,C,N-[py-O-C6H3-O-py]} (2), Pt(OH){κ3-N,C,N-[py-C6HMe2-py]} (3), and Pt(OH){κ3-N,C,N-[py-O-C6H3-O-py]} (4) were used to prepare d8-platinum bimetallic complexes. Precursors 1 and 2 react with AgBF4 and 7-azaindole (Haz) to give [Pt{κ3-N,C,N-[py-C6HMe2-py]}{κ1-N-[Haz]}]BF4 (5) and [Pt{κ3-N,C,N-[py-O-C6H3-O-py]}{κ1-N-[Haz]}]BF4 (6) and 3 and 4 with indolo[2,3-b]indole (H2ii) to generate Pt{κ1-N-[Hii]}{κ3-N,C,N-[py-C6HMe2-py]} (7) and Pt{κ1-N-[Hii]}{κ3-N,C,N-[py-O-C6H3-O-py]} (8). Subsequent addition of 3 and 4 to 5-7 affords bimetallic derivatives [{Pt[κ3-N,C,N-(py-C6HMe2-py)]}2{μ-N,N-[az]}]BF4 (9), [{Pt[κ3-N,C,N-(py-O-C6H3-O-py)]}2{μ-N,N-[az]}]BF4 (10), and {Pt[κ3-N,C,N-(py-C6HMe2-py)]}2{μ-N,N-[ii]} (11). X-ray structures of 9-11 reveal separations between the metals in sequence 9 (3.0515(4) Å) < 10 (3.2689(9) Å) < 11 (3.2949(2) Å). DFT calculations support σ overlap of the dz2 orbitals of platinum atoms, for 9 and 10. Accordingly, their absorption spectra show a MMLCT transition. Complex 9 is a red emitter. The excited state has 3MMLCT characteristics and a Pt-Pt separation of 2.763 Å. Complex 11 is a dual emitter in the red and NIR regions, in solid. Both excited states have a 3LC/LMCT characteristic and platinum-platinum separations of 3.290 and 3.202 Å. Intermediate 5 is a green emitter that achieves quantum yields close to unity, when diluted in PMMA and 1,2-dichloroethane at low concentrations.
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Affiliation(s)
- Miguel A Esteruelas
- Departamento de Química Inorgánica - Instituto de Síntesis Química y Catálisis Homogénea (ISQCH) - Centro de Innovación en Química Avanzada (ORFEO-CINQA), Universidad de Zaragoza - CSIC, Zaragoza 50009, Spain
| | - Sonia Moreno-Blázquez
- Departamento de Química Inorgánica - Instituto de Síntesis Química y Catálisis Homogénea (ISQCH) - Centro de Innovación en Química Avanzada (ORFEO-CINQA), Universidad de Zaragoza - CSIC, Zaragoza 50009, Spain
| | - Montserrat Oliván
- Departamento de Química Inorgánica - Instituto de Síntesis Química y Catálisis Homogénea (ISQCH) - Centro de Innovación en Química Avanzada (ORFEO-CINQA), Universidad de Zaragoza - CSIC, Zaragoza 50009, Spain
| | - Enrique Oñate
- Departamento de Química Inorgánica - Instituto de Síntesis Química y Catálisis Homogénea (ISQCH) - Centro de Innovación en Química Avanzada (ORFEO-CINQA), Universidad de Zaragoza - CSIC, Zaragoza 50009, Spain
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2
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Luo XF, Ning S, He H, Tang H, Shen LJ, Shen YR, Han HB, Xiao X, Zheng YX. Design of carbazole-based platinum complexes with steric hindrance for efficient organic light-emitting diodes. Dalton Trans 2023; 52:13670-13676. [PMID: 37702627 DOI: 10.1039/d3dt02264a] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 09/14/2023]
Abstract
The construction of platinum complexes with high steric hindrance is expected to suppress triple-triplet annihilation and π-π stacking to achieve high-performance organic light-emitting diodes (OLEDs) with low efficiency roll-off. Herein, two large steric hindrance platinum complexes (N-CzPhPtacac and N-CzCF3PhPtacac) were prepared by taking advantage of steric hindrance between the phenyl group on carbazole and the functional group (phenyl and trifluoromethyl substituted phenyl) at the 3-position of a pyridine moiety. Due to the similar electron cloud distribution and gap difference between the HOMO and LUMO, the two complexes showed similar orange-red emission peaks at 590 and 596 nm with high PL quantum yields of 90% and 92% and short excited state lifetimes of 2.77 and 3.08 μs in doped films, respectively. Consequently, OLEDs based on N-CzPhPtacac and N-CzCF3PhPtacac showed maximum external quantum efficiency (EQEmax) values of 15.4% and 18.9%, respectively. Importantly, benefitting from the more stretched spatial configuration from the -CF3 effect, the corresponding OLED exhibited a lower efficiency roll-off, with an EQE of 18.1% at 1000 cd m-2.
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Affiliation(s)
- Xu-Feng Luo
- College of Material Science and Chemical Engineering, Ningbo University of Technology, Ningbo 315211, P. R. China.
| | - Sheng Ning
- College of Material Science and Chemical Engineering, Ningbo University of Technology, Ningbo 315211, P. R. China.
| | - Hang He
- College of Material Science and Chemical Engineering, Ningbo University of Technology, Ningbo 315211, P. R. China.
| | - Hao Tang
- College of Material Science and Chemical Engineering, Ningbo University of Technology, Ningbo 315211, P. R. China.
- Zhejiang Institute of Tianjin University, 201 Fenghua Road, Ningbo 315201, China
| | - Liang-Jun Shen
- College of Material Science and Chemical Engineering, Ningbo University of Technology, Ningbo 315211, P. R. China.
- Zhejiang Institute of Tianjin University, 201 Fenghua Road, Ningbo 315201, China
| | - Yi-Rui Shen
- College of Material Science and Chemical Engineering, Ningbo University of Technology, Ningbo 315211, P. R. China.
- Zhejiang Institute of Tianjin University, 201 Fenghua Road, Ningbo 315201, China
| | - Hua-Bo Han
- State Key Laboratory of Coordination Chemistry, School of Chemistry and Chemical Engineering, Nanjing University, Nanjing 210093, P. R. China.
| | - Xunwen Xiao
- College of Material Science and Chemical Engineering, Ningbo University of Technology, Ningbo 315211, P. R. China.
- Zhejiang Institute of Tianjin University, 201 Fenghua Road, Ningbo 315201, China
| | - You-Xuan Zheng
- State Key Laboratory of Coordination Chemistry, School of Chemistry and Chemical Engineering, Nanjing University, Nanjing 210093, P. R. China.
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Pinter P, Hennersdorf F, Weigand JJ, Strassner T. Polymorphic Phosphorescence from Separable Aggregates with Unique Photophysical Properties. Chemistry 2021; 27:13135-13138. [PMID: 34405914 PMCID: PMC8518788 DOI: 10.1002/chem.202100483] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/11/2021] [Indexed: 11/26/2022]
Abstract
Platinum complexes aggregate into polymorphs with different intermolecular interactions leading to different photophysical properties. Strong intermolecular interactions stabilize the aggregate to such an extent that the polymorphs can be separated directly by column chromatography. Solid‐state structures as well as quantum‐chemical calculations confirmed the effect of the interactions on the photophysical properties.
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Affiliation(s)
- Piermaria Pinter
- Physikalische Organische Chemie, Technische Universität Dresden, Bergstraße 66, 01069, Dresden, Germany
| | - Felix Hennersdorf
- Anorganische Molekülchemie, Technische Universität Dresden, Mommsenstraße 4, 01069, Dresden, Germany
| | - Jan J Weigand
- Anorganische Molekülchemie, Technische Universität Dresden, Mommsenstraße 4, 01069, Dresden, Germany
| | - Thomas Strassner
- Physikalische Organische Chemie, Technische Universität Dresden, Bergstraße 66, 01069, Dresden, Germany
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Ko CL, Hung WY, Chen PT, Wang TH, Hsu HF, Liao JL, Ly KT, Wang SF, Yu CH, Liu SH, Lee GH, Tai WS, Chou PT, Chi Y. Versatile Pt(II) Pyrazolate Complexes: Emission Tuning via Interplay of Chelate Designs and Stacking Assemblies. ACS APPLIED MATERIALS & INTERFACES 2020; 12:16679-16690. [PMID: 32186365 DOI: 10.1021/acsami.9b23388] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/10/2023]
Abstract
Three homoleptic Pt(II) metal complexes [Pt(imPz)2] (1), [Pt(imiz)2] (2), and [Pt(imMz)2] (3) were synthesized from the treatment of Pt(DMSO)2Cl2 and functional imidazolyl pyrazole in refluxing tetrahydrofuran (THF). Alternatively, the heteroleptic Pt(II) complexes [Pt(imPz)(fppz)] (4), [Pt(imiz)(fppz)] (5), and [Pt(imMz)(fppz)] (6) were obtained from the treatment of a common intermediate [Pt(fppzH)Cl2] with a corresponding imidazolyl chelate. Pt(II) complexes 1, 2, and 5 were studied by single-crystal X-ray diffraction to reveal the corresponding packing arrangement in their crystal lattices, among which both homoleptic complexes 1 and 2 formed monomeric species, while heteroleptic 5 aligned as a dimer with a nonbonding Pt···Pt contact of 3.574 Å. Subsequent photophysical examinations showed that the homoleptic 1-3 and heteroleptic 4-6 exhibited the structured sky-blue ππ* emission and structureless light-green-emitting metal-metal-to-ligand charge transfer (MMLCT) emission in the solid state, respectively. A shortened Pt···Pt interaction of approximately 0.34-0.35 nm was confirmed in thin films of all heteroleptic Pt(II) complexes 4-6 by grazing-incidence X-ray diffraction (GIXD) analyses. Finally, Pt(II) complex 6 was employed as a dopant in the fabrication of organic light-emitting diode (OLED) devices with varied doping ratios, among which OLEDs with only 1 wt % 6 in the SimCP host exhibited a maximum external quantum efficiency (EQE) of 5.8% and CIEx,y values of 0.20, 0.31. In contrast, OLEDs using a nondoped architecture (i.e., 100% of 6 in the emitting layer (EML)) achieved a maximum EQE of 26.8%, current efficiency (CE) of 91.7 cd A-1, and power efficiency (PE) of 80.1 lm·W-1 and CIEx,y values of 0.41, 0.55, manifesting their versatility in various degrees of stacking assemblies and hence facile color-tuning capability on OLEDs.
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Affiliation(s)
- Chang-Lun Ko
- Department of Optoelectronics and Materials Technology, National Taiwan Ocean University, Keelung 20224, Taiwan
| | - Wen-Yi Hung
- Department of Optoelectronics and Materials Technology, National Taiwan Ocean University, Keelung 20224, Taiwan
| | - Po-Ting Chen
- Department of Chemistry, Tamkang University, New Taipei 25137, Taiwan
| | - Tsai-Hui Wang
- Department of Chemistry, Tamkang University, New Taipei 25137, Taiwan
| | - Hsiu-Fu Hsu
- Department of Chemistry, Tamkang University, New Taipei 25137, Taiwan
| | - Jia-Ling Liao
- Department of Chemistry and Frontier Research Center on Fundamental and Applied Sciences of Matters, National Tsing Hua University, Hsinchu 30013, Taiwan
| | - Kiet Tuong Ly
- Department of Chemistry and Frontier Research Center on Fundamental and Applied Sciences of Matters, National Tsing Hua University, Hsinchu 30013, Taiwan
| | - Sheng Fu Wang
- Department of Chemistry and Frontier Research Center on Fundamental and Applied Sciences of Matters, National Tsing Hua University, Hsinchu 30013, Taiwan
| | - Chang-Hung Yu
- Department of Optoelectronics and Materials Technology, National Taiwan Ocean University, Keelung 20224, Taiwan
| | - Shih-Hung Liu
- Department of Chemistry and Instrumentation Center, National Taiwan University, Taipei 10617, Taiwan
| | - Gene-Hsiang Lee
- Department of Chemistry and Instrumentation Center, National Taiwan University, Taipei 10617, Taiwan
| | - Wun-Shan Tai
- Department of Chemistry and Frontier Research Center on Fundamental and Applied Sciences of Matters, National Tsing Hua University, Hsinchu 30013, Taiwan
| | - Pi-Tai Chou
- Department of Chemistry and Instrumentation Center, National Taiwan University, Taipei 10617, Taiwan
| | - Yun Chi
- Department of Chemistry and Frontier Research Center on Fundamental and Applied Sciences of Matters, National Tsing Hua University, Hsinchu 30013, Taiwan
- Department of Chemistry and Department of Material Science and Engineering, City University of Hong Kong, Kowloon Tong, Hong Kong
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5
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Ohno K, Komuro M, Sugaya T, Nagasawa A, Fujihara T. Luminescence of mononuclear Pt(ii) complexes with glycolate: external stimuli-induced excimer emission changes to oligomer emissions. Dalton Trans 2020; 49:1873-1882. [PMID: 31967145 DOI: 10.1039/c9dt03996a] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/25/2022]
Abstract
Trihydrate crystals of novel PtII complexes [PtII(bpy)(gl)] (bpy: 2,2′-bipyridine; Hgl−: glycolate) show excimer emission changes to two kinds of oligomer emissions depending on the type of external stimuli.
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Affiliation(s)
- Keiji Ohno
- Department of Chemistry
- Graduate School of Science and Engineering
- Saitama University
- Saitama 338-8570
- Japan
| | - Masaya Komuro
- Department of Chemistry
- Graduate School of Science and Engineering
- Saitama University
- Saitama 338-8570
- Japan
| | - Tomoaki Sugaya
- Education Center
- Faculty of Engineering
- Chiba Institute of Technology
- Narashino
- Japan
| | - Akira Nagasawa
- Department of Chemistry
- Graduate School of Science and Engineering
- Saitama University
- Saitama 338-8570
- Japan
| | - Takashi Fujihara
- Comprehensive Analysis Center for Science
- Saitama University
- Saitama 338-8570
- Japan
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6
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Pinter P, Strassner T. Prediction of emission wavelengths of phosphorescent NHC based emitters for OLEDs. Tetrahedron 2019. [DOI: 10.1016/j.tet.2019.06.039] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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7
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Haiduc I. ReviewInverse coordination. Organic nitrogen heterocycles as coordination centers. A survey of molecular topologies and systematization. Part 1. Five-membered and smaller rings. J COORD CHEM 2019. [DOI: 10.1080/00958972.2019.1641702] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/05/2023]
Affiliation(s)
- Ionel Haiduc
- Facultatea de Chimie, Universitatea Babeş-Bolyai, Cluj-Napoca, Romania
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8
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Lu CW, Wang Y, Chi Y. Metal Complexes with Azolate-Functionalized Multidentate Ligands: Tactical Designs and Optoelectronic Applications. Chemistry 2016; 22:17892-17908. [DOI: 10.1002/chem.201601216] [Citation(s) in RCA: 55] [Impact Index Per Article: 6.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/14/2016] [Indexed: 11/11/2022]
Affiliation(s)
- Chin-Wei Lu
- Department of Chemistry and Low Carbon Energy Research Center; National Tsing Hua University; Hsinchu 30013 Taiwan
| | - Yang Wang
- 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
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9
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New efficient synthetic routes to trifluoromethyl substituted pyrazoles and corresponding β-diketones. Tetrahedron Lett 2016. [DOI: 10.1016/j.tetlet.2016.02.092] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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10
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Zhang S, Xia JC, Wu ZG, Lu GZ, Zhao Y, Zheng YX. Two Green-Phosphorescent Iridium Complexes with 2-Phenylpyrimidine Derivatives and Tetraphenylimidodiphosphinate for Efficient Organic Light-Emitting Diodes. Eur J Inorg Chem 2016. [DOI: 10.1002/ejic.201501318] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
Affiliation(s)
- Song Zhang
- State Key Laboratory of Coordination Chemistry; Collaborative Innovation Center of Advanced Microstructures; School of Chemistry and Chemical Engineering; Nanjing University; 210023 Nanjing P. R. China
| | - Jing-Cheng Xia
- State Key Laboratory of Coordination Chemistry; Collaborative Innovation Center of Advanced Microstructures; School of Chemistry and Chemical Engineering; Nanjing University; 210023 Nanjing P. R. China
| | - Zheng-Guang Wu
- State Key Laboratory of Coordination Chemistry; Collaborative Innovation Center of Advanced Microstructures; School of Chemistry and Chemical Engineering; Nanjing University; 210023 Nanjing P. R. China
| | - Guang-Zhao Lu
- State Key Laboratory of Coordination Chemistry; Collaborative Innovation Center of Advanced Microstructures; School of Chemistry and Chemical Engineering; Nanjing University; 210023 Nanjing P. R. China
| | - Yue Zhao
- State Key Laboratory of Coordination Chemistry; Collaborative Innovation Center of Advanced Microstructures; School of Chemistry and Chemical Engineering; Nanjing University; 210023 Nanjing P. R. China
| | - You-Xuan Zheng
- State Key Laboratory of Coordination Chemistry; Collaborative Innovation Center of Advanced Microstructures; School of Chemistry and Chemical Engineering; Nanjing University; 210023 Nanjing P. R. China
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11
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McCarney EP, Hawes CS, Blasco S, Gunnlaugsson T. Synthesis and structural studies of 1,4-di(2-pyridyl)-1,2,3-triazole dpt and its transition metal complexes; a versatile and subtly unsymmetric ligand. Dalton Trans 2016; 45:10209-21. [DOI: 10.1039/c6dt01416j] [Citation(s) in RCA: 26] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/29/2022]
Abstract
Structural analysis of the 1,4-di(2-pyridyl)-1,2,3-triazole ligand and its transition metal complexes of varying lability demonstrate the coordination chemistry selectivity of this subtly unsymmetric ligand.
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Affiliation(s)
- Eoin P. McCarney
- School of Chemistry and Trinity Biomedical Sciences Institute (TBSI)
- Trinity College Dublin
- The University of Dublin
- Dublin 2
- Ireland
| | - Chris S. Hawes
- School of Chemistry and Trinity Biomedical Sciences Institute (TBSI)
- Trinity College Dublin
- The University of Dublin
- Dublin 2
- Ireland
| | - Salvador Blasco
- School of Chemistry and Trinity Biomedical Sciences Institute (TBSI)
- Trinity College Dublin
- The University of Dublin
- Dublin 2
- Ireland
| | - Thorfinnur Gunnlaugsson
- School of Chemistry and Trinity Biomedical Sciences Institute (TBSI)
- Trinity College Dublin
- The University of Dublin
- Dublin 2
- Ireland
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12
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Dahm G, Borré E, Fu C, Bellemin-Laponnaz S, Mauro M. Tridentate Complexes of Palladium(II) and Platinum(II) Bearing bis-Aryloxide Triazole Ligands: A Joint Experimental and Theoretical Investigation. Chem Asian J 2015; 10:2368-79. [PMID: 26238531 DOI: 10.1002/asia.201500600] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/10/2015] [Indexed: 11/07/2022]
Abstract
A novel class of palladium(II) and platinum(II) complexes bearing tridentate bis-aryloxide triazole ligands was prepared by using straightforward and high-yielding synthetic routes. The complexes were fully characterized and the molecular structures of four derivatives were unambigously determined by single-crystal X-ray diffractometric analyses. For the most promising luminescent Pt(II) derivatives, further experimental investigations were carried out to characterize their photophysical features and to ascertain the nature of the emitting excited state by means of electronic absorption, steady-state, and time-resolved emission techniques in different conditions. In degassed fluid solution the complexes displayed broad and featureless photoluminescence with λ(em) =522-585 nm, excited-state lifetime up to few microseconds and quantum yield (PLQY) up to 17%, depending on the nature of both ancillary ligand and substituent on the tridentate ligand. Computational investigation using density functional theory and time-dependent DFT were performed to gain insight into the electronic processes responsible for optical transitions and structure-photoluminescence relationship. Jointly, experimental and theoretical characterization indicated that the radiative transition arises from an excited state with admixed triplet-manifold metal-to-ligand charge transfer and ligand-centered ((3)MLCT/(3)LC) character. We elucidated the modulation of the photophysical properties upon variation of substituents for this new family of complexes.
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Affiliation(s)
- Georges Dahm
- Département des Matériaux Organiques, Institut de Physique et Chimie des Matériaux de Strasbourg (IPCMS), Université de Strasbourg, CNRS UMR 7504, 23 rue du Loess, BP 43, F-67034, Strasbourg Cedex 2, France
| | - Etienne Borré
- Département des Matériaux Organiques, Institut de Physique et Chimie des Matériaux de Strasbourg (IPCMS), Université de Strasbourg, CNRS UMR 7504, 23 rue du Loess, BP 43, F-67034, Strasbourg Cedex 2, France.,Laboratoire de Chimie et des Biomatériaux Supramoléculaires, Institut de Science et d'Ingénierie Supramoléculaires (ISIS), Université de Strasbourg, CNRS UMR 7006, 8 allée Gaspard Monge, F-67083, Strasbourg, France
| | - Changkan Fu
- Département des Matériaux Organiques, Institut de Physique et Chimie des Matériaux de Strasbourg (IPCMS), Université de Strasbourg, CNRS UMR 7504, 23 rue du Loess, BP 43, F-67034, Strasbourg Cedex 2, France
| | - Stéphane Bellemin-Laponnaz
- Département des Matériaux Organiques, Institut de Physique et Chimie des Matériaux de Strasbourg (IPCMS), Université de Strasbourg, CNRS UMR 7504, 23 rue du Loess, BP 43, F-67034, Strasbourg Cedex 2, France. .,University of Strasbourg Institute for Advanced Study (USIAS), 5 allée du Général Rouvillois, F-67083, Strasbourg, France.
| | - Matteo Mauro
- Laboratoire de Chimie et des Biomatériaux Supramoléculaires, Institut de Science et d'Ingénierie Supramoléculaires (ISIS), Université de Strasbourg, CNRS UMR 7006, 8 allée Gaspard Monge, F-67083, Strasbourg, France. .,University of Strasbourg Institute for Advanced Study (USIAS), 5 allée du Général Rouvillois, F-67083, Strasbourg, France.
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Zhou C, Tian Y, Yuan Z, Han M, Wang J, Zhu L, Tameh MS, Huang C, Ma B. Precise Design of Phosphorescent Molecular Butterflies with Tunable Photoinduced Structural Change and Dual Emission. Angew Chem Int Ed Engl 2015. [DOI: 10.1002/ange.201505185] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
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14
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Zhou C, Tian Y, Yuan Z, Han M, Wang J, Zhu L, Tameh MS, Huang C, Ma B. Precise Design of Phosphorescent Molecular Butterflies with Tunable Photoinduced Structural Change and Dual Emission. Angew Chem Int Ed Engl 2015. [DOI: 10.1002/anie.201505185] [Citation(s) in RCA: 74] [Impact Index Per Article: 8.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
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15
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Naziruddin AR, Galstyan A, Iordache A, Daniliuc CG, Strassert CA, De Cola L. Bidentate NHC^pyrozolate ligands in luminescent platinum(ii) complexes. Dalton Trans 2015; 44:8467-77. [DOI: 10.1039/c4dt03651d] [Citation(s) in RCA: 36] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Abstract
The tuning of luminescence from blue to yellow was achieved with platinum complexes containing NHC^pyrozolate and functionalized-phenyl-pyridine or triazole-pyridine ligands.
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Affiliation(s)
- Abbas Raja Naziruddin
- Westfälische Wilhelms-Universität Münster
- Physikalisches Institut-Center for Nanotechnology
- 48149 Münster
- Germany
| | - Anzhela Galstyan
- Westfälische Wilhelms-Universität Münster
- Physikalisches Institut-Center for Nanotechnology
- 48149 Münster
- Germany
| | - Adriana Iordache
- Westfälische Wilhelms-Universität Münster
- Physikalisches Institut-Center for Nanotechnology
- 48149 Münster
- Germany
| | - Constantin G. Daniliuc
- Westfälische Wilhelms-Universität Münster
- Organisch-Chemisches Institut
- 48149 Münster
- Germany
| | - Cristian A. Strassert
- Westfälische Wilhelms-Universität Münster
- Physikalisches Institut-Center for Nanotechnology
- 48149 Münster
- Germany
| | - Luisa De Cola
- Westfälische Wilhelms-Universität Münster
- Physikalisches Institut-Center for Nanotechnology
- 48149 Münster
- Germany
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16
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Han M, Tian Y, Yuan Z, Zhu L, Ma B. A Phosphorescent Molecular “Butterfly” that undergoes a Photoinduced Structural Change allowing Temperature Sensing and White Emission. Angew Chem Int Ed Engl 2014; 53:10908-12. [DOI: 10.1002/anie.201405293] [Citation(s) in RCA: 119] [Impact Index Per Article: 11.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/15/2014] [Indexed: 01/06/2023]
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17
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Han M, Tian Y, Yuan Z, Zhu L, Ma B. A Phosphorescent Molecular “Butterfly” that undergoes a Photoinduced Structural Change allowing Temperature Sensing and White Emission. Angew Chem Int Ed Engl 2014. [DOI: 10.1002/ange.201405293] [Citation(s) in RCA: 29] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
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18
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Borré E, Dahm G, Aliprandi A, Mauro M, Dagorne S, Bellemin-Laponnaz S. Tridentate Complexes of Group 10 Bearing Bis-Aryloxide N-Heterocyclic Carbene Ligands: Synthesis, Structural, Spectroscopic, and Computational Characterization. Organometallics 2014. [DOI: 10.1021/om5003446] [Citation(s) in RCA: 35] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
Affiliation(s)
- Etienne Borré
- Institut
de Physique et Chimie des Matériaux de Strasbourg, Université de Strasbourg CNRS UMR 7504, 23 rue du Loess, BP 43, F-67034 Strasbourg Cedex
2, France
| | - Georges Dahm
- Institut
de Physique et Chimie des Matériaux de Strasbourg, Université de Strasbourg CNRS UMR 7504, 23 rue du Loess, BP 43, F-67034 Strasbourg Cedex
2, France
| | - Alessandro Aliprandi
- Laboratoire
de Chimie et des Biomatériaux Supramoléculaires, Institut
de Science et d’Ingénierie Supramoléculaires
(ISIS), Université de Strasbourg UMR 7006, 8 allée
Gaspard Monge, F-67083 Strasbourg, France
| | - Matteo Mauro
- Laboratoire
de Chimie et des Biomatériaux Supramoléculaires, Institut
de Science et d’Ingénierie Supramoléculaires
(ISIS), Université de Strasbourg UMR 7006, 8 allée
Gaspard Monge, F-67083 Strasbourg, France
- University of Strasbourg Institute for Advanced Study (USIAS), 5 allée du Général Rouvillois, 67083 Strasbourg, France
| | - Samuel Dagorne
- Institut
de Chimie de Strasbourg, CNRS-Université de Strasbourg UMR 7177, 1 rue Blaise Pascal, F-67000 Strasbourg, France
| | - Stéphane Bellemin-Laponnaz
- Institut
de Physique et Chimie des Matériaux de Strasbourg, Université de Strasbourg CNRS UMR 7504, 23 rue du Loess, BP 43, F-67034 Strasbourg Cedex
2, France
- University of Strasbourg Institute for Advanced Study (USIAS), 5 allée du Général Rouvillois, 67083 Strasbourg, France
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19
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Chen JL, Tan XZ, Fu XF, Guo ZH, Wang JY, Yu HG, He LH, Wen HR. Luminescent platinum(II) chloride complexes of 6-(1-alkyl-5-tetrazolyl)-4,4′-dimethyl-2,2′-bipyridine terdentate chelating ligands. INORG CHEM COMMUN 2014. [DOI: 10.1016/j.inoche.2014.06.018] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
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20
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McCusker CE, Chakraborty A, Castellano FN. Excited State Equilibrium Induced Lifetime Extension in a Dinuclear Platinum(II) Complex. J Phys Chem A 2014; 118:10391-9. [DOI: 10.1021/jp503827e] [Citation(s) in RCA: 37] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/01/2023]
Affiliation(s)
- Catherine E. McCusker
- Department
of Chemistry, North Carolina State University, Raleigh, North Carolina 27695-8204, United States
| | - Arnab Chakraborty
- Department of Chemistry & Center for Photochemical Sciences, Bowling Green State University, Bowling Green, Ohio 43403, United States
| | - Felix N. Castellano
- Department
of Chemistry, North Carolina State University, Raleigh, North Carolina 27695-8204, United States
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21
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Lalinde E, Moreno MT, Ruiz S, Sánchez S. Synthesis, Structural, and Photophysical Studies of Phenylquinoline and Phenylquinolinyl Alkynyl Based Pt(II) Complexes. Organometallics 2014. [DOI: 10.1021/om500336v] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/17/2023]
Affiliation(s)
- Elena Lalinde
- Departamento
de Química-Centro
de Síntesis Química de La Rioja, (CISQ), Universidad de La Rioja, 26006, Logroño, Spain
| | - M. Teresa Moreno
- Departamento
de Química-Centro
de Síntesis Química de La Rioja, (CISQ), Universidad de La Rioja, 26006, Logroño, Spain
| | - Santiago Ruiz
- Departamento
de Química-Centro
de Síntesis Química de La Rioja, (CISQ), Universidad de La Rioja, 26006, Logroño, Spain
| | - Sergio Sánchez
- Departamento
de Química-Centro
de Síntesis Química de La Rioja, (CISQ), Universidad de La Rioja, 26006, Logroño, Spain
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22
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Stengel I, Strassert CA, De Cola L, Bäuerle P. Tracking Intramolecular Interactions in Flexibly Linked Binuclear Platinum(II) Complexes. Organometallics 2014. [DOI: 10.1021/om4004237] [Citation(s) in RCA: 32] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
Affiliation(s)
- Ilona Stengel
- Institute of Organic Chemistry II and Advanced
Materials, University of Ulm, Albert-Einstein-Allee 11, 89081 Ulm, Germany
- Dutch Polymer Institute (DPI), P.O. Box 902, 5600 AX Eindhoven, The Netherlands
| | - Cristian A. Strassert
- Dutch Polymer Institute (DPI), P.O. Box 902, 5600 AX Eindhoven, The Netherlands
- Center for Nanotechnology and Physikalisches
Institut, Westfälische Wilhelms-Universität Münster, Heisenbergstrasse
11, 48149 Münster, Germany
| | - Luisa De Cola
- Dutch Polymer Institute (DPI), P.O. Box 902, 5600 AX Eindhoven, The Netherlands
- Center for Nanotechnology and Physikalisches
Institut, Westfälische Wilhelms-Universität Münster, Heisenbergstrasse
11, 48149 Münster, Germany
| | - Peter Bäuerle
- Institute of Organic Chemistry II and Advanced
Materials, University of Ulm, Albert-Einstein-Allee 11, 89081 Ulm, Germany
- Dutch Polymer Institute (DPI), P.O. Box 902, 5600 AX Eindhoven, The Netherlands
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23
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Du W, Wang Q, Wang L, Yu Z. Ruthenium Complex Catalysts Supported by a Bis(trifluoromethyl)pyrazolyl–Pyridyl-Based NNN Ligand for Transfer Hydrogenation of Ketones. Organometallics 2014. [DOI: 10.1021/om401144u] [Citation(s) in RCA: 54] [Impact Index Per Article: 5.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/18/2023]
Affiliation(s)
- Wangming Du
- Dalian Institute of Chemical Physics, Chinese Academy of Sciences, 457 Zhongshan Road, Dalian, Liaoning 116023, People’s Republic of China
| | - Qingfu Wang
- Dalian Institute of Chemical Physics, Chinese Academy of Sciences, 457 Zhongshan Road, Dalian, Liaoning 116023, People’s Republic of China
| | - Liandi Wang
- Dalian Institute of Chemical Physics, Chinese Academy of Sciences, 457 Zhongshan Road, Dalian, Liaoning 116023, People’s Republic of China
| | - Zhengkun Yu
- Dalian Institute of Chemical Physics, Chinese Academy of Sciences, 457 Zhongshan Road, Dalian, Liaoning 116023, People’s Republic of China
- State Key Laboratory of Organometallic Chemistry, Shanghai Institute of Organic Chemistry, Chinese Academy of Sciences, 354 Fenglin
Road, Shanghai 200032, People’s Republic of China
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24
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Gourlaouen C, Daniel C. Spin–orbit effects in square-planar Pt(ii) complexes with bidentate and terdentate ligands: theoretical absorption/emission spectroscopy. Dalton Trans 2014; 43:17806-19. [DOI: 10.1039/c4dt01822b] [Citation(s) in RCA: 38] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Theoretical “spin-free” (in black) and “spin–orbit” (in red) absorption spectra of [Pt(tpy)Cl]+ and electronic densities characterizing the main intense bands MLCT/XLCT at 384 nm, and MLCT/LC at 326 nm and 250 nm (the experimental spectrum is shown in the inset).
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Affiliation(s)
- Christophe Gourlaouen
- Laboratoire de Chimie Quantique UMR-7177 CNRS-UdS
- Université de Strasbourg
- F-67008 Strasbourg, France
| | - Chantal Daniel
- Laboratoire de Chimie Quantique UMR-7177 CNRS-UdS
- Université de Strasbourg
- F-67008 Strasbourg, France
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25
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Chen JL, Chen XX, Tan XZ, Wang JY, Fu XF, He LH, Li Y, Zhong GQ, Wen HR. A new luminescent platinum(II) chloride complex of 6-(5-trifluoromethyl-1,2,4-triazol-3-yl)-4,4′-dimethyl-2,2′-bipyridine. INORG CHEM COMMUN 2013. [DOI: 10.1016/j.inoche.2013.06.008] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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26
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Chen JL, Cao XF, Wang JY, He LH, Liu ZY, Wen HR, Chen ZN. Synthesis, Characterization, and Photophysical Properties of Heteroleptic Copper(I) Complexes with Functionalized 3-(2′-Pyridyl)-1,2,4-triazole Chelating Ligands. Inorg Chem 2013; 52:9727-40. [DOI: 10.1021/ic4002829] [Citation(s) in RCA: 82] [Impact Index Per Article: 7.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/06/2023]
Affiliation(s)
- Jing-Lin Chen
- School of Metallurgy and Chemical
Engineering, Jiangxi University of Science and Technology, Ganzhou 341000, People’s Republic of China
- State Key Laboratory of Structural Chemistry,
Fujian Institute of Research on the Structure of Matter, Chinese Academy of Sciences, Fuzhou 350002, People’s
Republic of China
| | - Xing-Fu Cao
- School of Metallurgy and Chemical
Engineering, Jiangxi University of Science and Technology, Ganzhou 341000, People’s Republic of China
| | - Jin-Yun Wang
- State Key Laboratory of Structural Chemistry,
Fujian Institute of Research on the Structure of Matter, Chinese Academy of Sciences, Fuzhou 350002, People’s
Republic of China
| | - Li-Hua He
- School of Metallurgy and Chemical
Engineering, Jiangxi University of Science and Technology, Ganzhou 341000, People’s Republic of China
| | - Zong-Yong Liu
- School of Metallurgy and Chemical
Engineering, Jiangxi University of Science and Technology, Ganzhou 341000, People’s Republic of China
| | - He-Rui Wen
- School of Metallurgy and Chemical
Engineering, Jiangxi University of Science and Technology, Ganzhou 341000, People’s Republic of China
| | - Zhong-Ning Chen
- State Key Laboratory of Structural Chemistry,
Fujian Institute of Research on the Structure of Matter, Chinese Academy of Sciences, Fuzhou 350002, People’s
Republic of China
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27
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Chakraborty A, Deaton JC, Haefele A, Castellano FN. Charge-Transfer and Ligand-Localized Photophysics in Luminescent Cyclometalated Pyrazolate-Bridged Dinuclear Platinum(II) Complexes. Organometallics 2013. [DOI: 10.1021/om400276v] [Citation(s) in RCA: 83] [Impact Index Per Article: 7.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Arnab Chakraborty
- Department of Chemistry
and Center for Photochemical Sciences, Bowling Green State University, Bowling Green, Ohio 43403, United
States
| | - Joseph C. Deaton
- Department of Chemistry
and Center for Photochemical Sciences, Bowling Green State University, Bowling Green, Ohio 43403, United
States
| | - Alexandre Haefele
- Department of Chemistry
and Center for Photochemical Sciences, Bowling Green State University, Bowling Green, Ohio 43403, United
States
| | - Felix N. Castellano
- Department of Chemistry
and Center for Photochemical Sciences, Bowling Green State University, Bowling Green, Ohio 43403, United
States
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28
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Das S, Karmakar S, Saha D, Baitalik S. A Combined Experimental and DFT/TD-DFT Investigation of Structural, Electronic, and Cation-Induced Switching of Photophysical Properties of Bimetallic Ru(II) and Os(II) Complexes Derived from Imidazole-4,5-Dicarboxylic Acid and 2,2′-Bipyridine. Inorg Chem 2013; 52:6860-79. [DOI: 10.1021/ic302566p] [Citation(s) in RCA: 33] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/22/2023]
Affiliation(s)
- Shyamal Das
- Department of Chemistry, Inorganic
Chemistry Section, Jadavpur University,
Kolkata - 700 032, India
| | - Srikanta Karmakar
- Department of Chemistry, Inorganic
Chemistry Section, Jadavpur University,
Kolkata - 700 032, India
| | - Debasish Saha
- Department of Chemistry, Inorganic
Chemistry Section, Jadavpur University,
Kolkata - 700 032, India
| | - Sujoy Baitalik
- Department of Chemistry, Inorganic
Chemistry Section, Jadavpur University,
Kolkata - 700 032, India
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29
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Chen JL, Tan XZ, Chen XX, Wang JY, Cao XF, He LH, Hua JY, Wen HR. Luminescent mononuclear Pt(II) chloride complexes with C-linked 2,2′-bipyridyl tetrazole terdentate chelating ligands. INORG CHEM COMMUN 2013. [DOI: 10.1016/j.inoche.2013.02.003] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
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30
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Cebrián C, Mauro M, Kourkoulos D, Mercandelli P, Hertel D, Meerholz K, Strassert CA, De Cola L. Luminescent neutral platinum complexes bearing an asymmetric N(^) N(^) N ligand for high-performance solution-processed OLEDs. ADVANCED MATERIALS (DEERFIELD BEACH, FLA.) 2013; 25:437-442. [PMID: 22972396 DOI: 10.1002/adma.201202123] [Citation(s) in RCA: 74] [Impact Index Per Article: 6.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/27/2012] [Revised: 07/23/2012] [Indexed: 06/01/2023]
Abstract
The synthesis and full characterization of new platinum complexes bearing a bulky asymmetric dianionic tridentate ligand is reported. The hindrance of the ligand prevents detrimental intermolecular interactions yielding to highly emitting species in both crystalline state and thin-film. Such properties prompted their successful use in solution-processed OLEDs, showing remarkable external quantum efficiency up to 5.6%.
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Affiliation(s)
- Cristina Cebrián
- Physikalisches Institut and Center for Nanotechnology (CeNTech), Universität Münster, Heisenbergstrasse 11, 48149 Münster, Germany
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31
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Scaffidi-Domianello YY, Legin AA, Jakupec MA, Roller A, Kukushkin VY, Galanski M, Keppler BK. Novel oximato-bridged platinum(II) di- and trimer(s): synthetic, structural, and in vitro anticancer activity studies. Inorg Chem 2012; 51:7153-63. [PMID: 22691006 DOI: 10.1021/ic300148e] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
Novel platinum complexes of trans geometry [PtCl(2){(Z)-R(H)C═NOH}(2)] [R = Me (1), Et (3)] and [PtCl(2){(E)-R(H)C═NOH}{(Z)-R(H)C═NOH}] [R = Me (2), Et (4)] as well as the classic trans-[PtCl(2)(R(2)C═NOH)(2)] [R = Me, Et] were reacted with an equivalent amount of silver acetate in acetone solution at ambient temperature, resulting in formation of unprecedented head-to-tail-oriented oximato-bridged dimers [PtCl{μ-(Z)-R(H)C═NO}{(Z)-R(H)C═NOH}](2) [R = Me (5), Et (7)], [PtCl{μ-(Z)-R(H)C═NO}{(E)-R(H)C═NOH}](2) [R = Me (6), Et (8)], and [PtCl(μ-R(2)C═NO)(R(2)C═NOH)](2) [R = Me (9), Et (10)], correspondingly. The dimeric species feature a unique six-membered diplatinacycle and represent the first example of oxime ligands coordinated to platinum via the oxygen atom. All complexes were characterized by elemental analyses, electrospray ionization mass spectrometry, IR and multinuclear ((1)H, (13)C, and (195)Pt) NMR spectroscopy, as well as X-ray diffraction in the cases of dimers 6 and 9. Furthermore, the crystal and molecular structures of a trimeric oximato-bridged complex 11 comprising three platinum units connected in a chain way were established. The cytotoxicity of both dimers and the respective monomers was comparatively evaluated in three human cancer cell lines: cisplatin-sensitive CH1 cells as well as cisplatin-resistant SW480 and A549 cells, whereupon structure-activity relationships were drawn. Thus, it was found that dimerization results in a substantial (up to 7-fold) improvement of IC(50) values of (aldoxime)Pt(II) compounds, whereas for the analogous complexes featuring ketoxime ligands the reverse trend was observed. Remarkably, the novel dimers yielded no cross-resistance with cisplatin in SW480 cells, exhibiting up to 2-fold enhanced cytotoxicity in comparison with the CH1 cell line and thereby possessing a promising potential to overcome resistance toward platinum anticancer drugs. The latter point was also confirmed by investigating the potency of apoptosis induction in the case of one monomer as well as one dimer; the investigated complexes proved to be strong apoptotic agents which could induce cell death even in the cisplatin-resistant SW480 cell line.
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32
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Sato T, Awano H, Haba O, Katagiri H, Pu YJ, Takahashi T, Yonetake K. Synthesis, characterization, and polarized luminescence properties of platinum(II) complexes having a rod-like ligand. Dalton Trans 2012; 41:8379-89. [PMID: 22641165 DOI: 10.1039/c2dt30071k] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
We have synthesized a series of platinum (Pt) complexes having a rod-like ligand: 'Pt(F(2)PPy)acac', 'Pt(12F(2)PPy)acac', and 'Pt(12F(2)PPyO4)acac'. The crystal form of Pt(12F(2)PPy)acac was successfully determined to be triclinic by single-crystal X-ray structural analysis. The molecules were parallelly aligned in the unit cell. Monomer and excimer emissions of Pt(12F(2)PPy)acac were observed in hexane solution, poly(methyl methacrylate) film, and various nematic LCs. Homogeneous LC cells with the Pt complex/LC mixtures exhibited polarized optical emission resulting from monomer and excimer states. The PL intensity perpendicular to the orientation direction was higher than the parallel one in the whole wavelength region of the Pt complex and the polarization ratio of the excimer was higher than that of the monomer. The polarization ratios of the excimers were estimated to be 1.4-2.5 in nematic LC at room temperature, and decreased gradually with increasing temperature. The polarization ratios of Pt(12F(2)PPyO4)acac were higher than those of Pt(F(2)PPy)acac and Pt(12F(2)PPy)acac in all the LCs.
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Affiliation(s)
- Takeshi Sato
- Graduate School of Science and Engineering, Yamagata University, 4-3-16 Jonan, Yonezawa, Yamagata 992-8510, Japan.
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33
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Hanson K, Roskop L, Patel N, Griffe L, Djurovich PI, Gordon MS, Thompson ME. Photophysical and electrochemical properties of 1,3-bis(2-pyridylimino)isoindolate platinum(ii) derivatives. Dalton Trans 2012; 41:8648-59. [DOI: 10.1039/c2dt30354j] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Affiliation(s)
- Kenneth Hanson
- Department of Chemistry, University of Southern California, Los Angeles, CA 90089, USA
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34
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Chen C, Qiu H, Chen W. Synthesis and Characterization of Nickel Inverse 9-Metallacrown-3, Palladium–Silver, and Dinuclear Platinum Complexes Containing Pyrazole-Functionalized NHC Ligands. Inorg Chem 2011; 50:8671-8. [DOI: 10.1021/ic2012233] [Citation(s) in RCA: 46] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
Affiliation(s)
- Chao Chen
- Department of Chemistry, Zhejiang University, Xixi Campus, Hangzhou 310028, People’s Republic of China
- College of Materials, Chemistry and Chemical Engineering, Hangzhou Normal University, Hangzhou 310036, People’s Republic of China
| | - Huayu Qiu
- College of Materials, Chemistry and Chemical Engineering, Hangzhou Normal University, Hangzhou 310036, People’s Republic of China
| | - Wanzhi Chen
- Department of Chemistry, Zhejiang University, Xixi Campus, Hangzhou 310028, People’s Republic of China
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35
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Zink DM, Grab T, Baumann T, Nieger M, Barnes EC, Klopper W, Bräse S. Experimental and Theoretical Study of Novel Luminescent Di-, Tri-, and Tetranuclear Copper Triazole Complexes. Organometallics 2011. [DOI: 10.1021/om1011648] [Citation(s) in RCA: 68] [Impact Index Per Article: 5.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
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36
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Kilpin KJ, Gavey EL, McAdam CJ, Anderson CB, Lind SJ, Keep CC, Gordon KC, Crowley JD. Palladium(II) Complexes of Readily Functionalized Bidentate 2-Pyridyl-1,2,3-triazole “Click” Ligands: A Synthetic, Structural, Spectroscopic, and Computational Study. Inorg Chem 2011; 50:6334-46. [DOI: 10.1021/ic200789b] [Citation(s) in RCA: 101] [Impact Index Per Article: 7.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Affiliation(s)
- Kelly J. Kilpin
- Department of Chemistry, University of Otago, P.O. Box 56, Dunedin, New Zealand
| | - Emma L. Gavey
- Department of Chemistry, University of Otago, P.O. Box 56, Dunedin, New Zealand
| | - C. John McAdam
- Department of Chemistry, University of Otago, P.O. Box 56, Dunedin, New Zealand
| | | | - Samuel J. Lind
- Department of Chemistry, University of Otago, P.O. Box 56, Dunedin, New Zealand
- MacDiarmid Institute for Advanced Materials and Nanotechnology, New Zealand
| | - Courtney C. Keep
- Department of Chemistry, University of Otago, P.O. Box 56, Dunedin, New Zealand
| | - Keith C. Gordon
- Department of Chemistry, University of Otago, P.O. Box 56, Dunedin, New Zealand
- MacDiarmid Institute for Advanced Materials and Nanotechnology, New Zealand
| | - James D. Crowley
- Department of Chemistry, University of Otago, P.O. Box 56, Dunedin, New Zealand
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37
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Kashiwame Y, Watanabe M, Araki K, Kuwata S, Ikariya T. Synthesis, Structure, and Proton-Transfer Reactions of Brønsted Acidic Pyridylpyrazole Complexes of Ruthenium. BULLETIN OF THE CHEMICAL SOCIETY OF JAPAN 2011. [DOI: 10.1246/bcsj.20100331] [Citation(s) in RCA: 23] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
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38
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Hu JJ, Bai SQ, Yeh HH, Young DJ, Chi Y, Hor TSA. N-heterocyclic carbene Pt(II) complexes from caffeine: synthesis, structures and photoluminescent properties. Dalton Trans 2011; 40:4402-6. [PMID: 21409198 DOI: 10.1039/c0dt01380c] [Citation(s) in RCA: 40] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/12/2023]
Abstract
The caffeine-derived N-heterocyclic carbene (NHC) complex [Pt(II)(C^N)(NHC)Cl] (C^N = 2-phenylpyridine), 4 has the opposite stereochemistry and a shorter Pt-C(carbene) bond compared to that of an analogous benzimidazole-derived N,N-heterocyclic carbene (NNHC) Pt complex 2. These suggest a lower trans influence of pyridyl N compared to cyclometallated carbon and an increased Pt-NHC π-backbonding because of decreased π-donation resulting from conjugation to the electron deficient pyrimidine of caffeine. Complex 4 has a lower emission quantum yield (Φ) and is blue-shifted into the green region of the visible spectrum relative to non-carbene Pt(II) cyclometalated complex 5.
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Affiliation(s)
- Jian Jin Hu
- Department of Chemistry, National University of Singapore, 3 Science Drive, Singapore 117543
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39
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Cho S, Mara MW, Wang X, Lockard JV, Rachford AA, Castellano FN, Chen LX. Coherence in Metal−Metal-to-Ligand-Charge-Transfer Excited States of a Dimetallic Complex Investigated by Ultrafast Transient Absorption Anisotropy. J Phys Chem A 2011; 115:3990-6. [DOI: 10.1021/jp109174f] [Citation(s) in RCA: 61] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Sung Cho
- Chemical Sciences and Engineering Division, Argonne National Laboratory, Argonne, Illinois 60439, United States
- Department of Chemistry, Northwestern University, 2145 Sheridan Road, Evanston, Illinois 60208, United States
| | - Michael W. Mara
- Chemical Sciences and Engineering Division, Argonne National Laboratory, Argonne, Illinois 60439, United States
- Department of Chemistry, Northwestern University, 2145 Sheridan Road, Evanston, Illinois 60208, United States
| | - Xianghuai Wang
- Department of Chemistry & Center for Photochemical Sciences, Bowling Green State University, Bowling Green, Ohio 43403, United States
| | - Jenny V. Lockard
- Chemical Sciences and Engineering Division, Argonne National Laboratory, Argonne, Illinois 60439, United States
| | - Aaron A. Rachford
- Department of Chemistry & Center for Photochemical Sciences, Bowling Green State University, Bowling Green, Ohio 43403, United States
| | - Felix N. Castellano
- Department of Chemistry & Center for Photochemical Sciences, Bowling Green State University, Bowling Green, Ohio 43403, United States
| | - Lin X. Chen
- Chemical Sciences and Engineering Division, Argonne National Laboratory, Argonne, Illinois 60439, United States
- Department of Chemistry, Northwestern University, 2145 Sheridan Road, Evanston, Illinois 60208, United States
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40
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41
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Wen HM, Wu YH, Xu LJ, Zhang LY, Chen CN, Chen ZN. Luminescent square-planar platinum(ii) complexes with tridentate 3-bis(2-pyridylimino)isoindoline and monodentate N-heterocyclic ligands. Dalton Trans 2011; 40:6929-38. [DOI: 10.1039/c1dt10385g] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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Rossi E, Murphy L, Brothwood PL, Colombo A, Dragonetti C, Roberto D, Ugo R, Cocchi M, Williams JAG. Cyclometallated platinum(ii) complexes of 1,3-di(2-pyridyl)benzenes: tuning excimer emission from red to near-infrared for NIR-OLEDs. ACTA ACUST UNITED AC 2011. [DOI: 10.1039/c1jm12716k] [Citation(s) in RCA: 93] [Impact Index Per Article: 7.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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Liao CT, Chen HH, Hsu HF, Poloek A, Yeh HH, Chi Y, Wang KW, Lai CH, Lee GH, Shih CW, Chou PT. Mesomorphism and luminescence properties of platinum(II) complexes with tris(alkoxy)phenyl-functionalized pyridyl pyrazolate chelates. Chemistry 2010; 17:546-56. [PMID: 21207572 DOI: 10.1002/chem.201000994] [Citation(s) in RCA: 68] [Impact Index Per Article: 4.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/17/2010] [Indexed: 11/11/2022]
Abstract
A series of new mesomorphic platinum(II) complexes 1-4 bearing pyridyl pyrazolate chelates are reported herein. In this approach, pyridyl azolate ligands have been strategically functionalized with tris(alkoxy)phenyl groups with various alkyl chain lengths. As a result, they are ascribed to a class of luminescent metallomesogens that possess distinctive morphological properties, such as their intermolecular packing arrangement and their associated photophysical behavior. In CH(2) Cl(2), independent of the applied concentration in the range 10(-6)-10(-3) M, all Pt(II) complexes exhibit bright phosphorescence centered at around 520 nm, which is characteristic for monomeric Pt(II) complexes. In stark contrast, the single-crystal X-ray structure determination of [Pt(C4pz)(2)] (1) shows the formation of a dimeric aggregate with a notable Pt⋅⋅⋅Pt contact of 3.258 Å. Upon heating, all Pt(II) complexes 1-4 melted to form columnar suprastructures, for which similar intracolumnar Pt⋅⋅⋅Pt distances of approx. 3.4-3.5 Å are observed within an exceptionally wide temperature range (>250 °C), according to the powder XRD data. Upon casting into a neat thin film at RT, the luminescence of 1-4 is dominated by a red emission that spans 630-660 nm, which originates from the one-dimensional, chainlike structure with Pt-Pt interaction in the ground state. Taking complex 4 as a representative, the emission intensity and wavelength were significantly decreased and blueshifted, respectively, on heating from RT to 250 °C. Further heating to liquefy the sample alters the red emission back to the green phosphorescence of the monomer. The results highlight the pivotal role of tris(alkoxy)phenyl groups in the structural versus luminescence behavior of these Pt(II) complexes.
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Affiliation(s)
- Ching-Ting Liao
- Department of Chemistry, Tamkang University, 151, Ying-chuan Road, Tamsui, Taipei County, Taiwan 25137, ROC
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