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Thakur V, Thomas JM, Adnan M, Sivasankar C, Vijaya Prakash G, Thirupathi N. Syntheses, structural, photophysical and theoretical studies of heteroleptic cycloplatinated guanidinate(1-) complexes bearing acetylacetonate and picolinate ancillary ligands. RSC Adv 2024; 14:13291-13305. [PMID: 38655486 PMCID: PMC11037393 DOI: 10.1039/d4ra00828f] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/01/2024] [Accepted: 04/14/2024] [Indexed: 04/26/2024] Open
Abstract
Cycloplatination of symmetrical N,N',N''-triarylguanidines, (ArNH)2C[double bond, length as m-dash]NAr with cis-[Pt(TFA)2(S(O)Me2)2] in toluene afforded cis-[Pt(TAG)(TFA)(S(O)Me2)] (TAG = triarylguanidinate(1-)-κC,κN; TFA = OC(O)CF3; 6-9) in 75-82% yields. The reactions of 6-9 and the previously known cis-[Pt(TAG)X(S(O)Me2)] (X = Cl (1) and TFA (2-5)) with acetylacetone (acacH) or 2-picolinic acid (picH) in the presence of a base afforded [Pt(TAG)(acac)] (acac = acetylacetonate-κ2O,O'; 10-18) and [Pt(TAG)(pic)] (pic = 2-picolinate-κN,κO; 19) in high yields. The new complexes were characterised by analytical, IR and multinuclear NMR spectroscopies. Further, molecular structures of 11, 12, 13·0.5 toluene and 14-19 were determined by single crystal X-ray diffraction. Absorption spectra of 10-19 in solution and their emission spectra in crystalline form were measured. Platinacycles 10-19 are bluish green light emitter in the crystalline form, and emit in the λPL = 488-529 nm range (11 and 13-19) while 12 emits at λPL = 570 nm. Unlike other platinacycles, the emission band of 12 is broad, red shifted, and this pattern is ascribed to the presence of an intermolecular N-H⋯Pt interaction involving the endocyclic amino unit of the six-membered [Pt(TAG)] ring and the Pt(ii) atom in the adjacent molecule in an asymmetric unit of the crystal lattice. Lifetime measurements were carried out for all platinacycles in crystalline form, which revealed lifetime in the order of nanoseconds. The origin of absorption and emission properties of 11, 15, 18 and 19 were studied by TD-DFT calculations.
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Affiliation(s)
- Vasudha Thakur
- Department of Chemistry, University of Delhi Delhi 110 007 India
| | - Jisha Mary Thomas
- Department of Chemistry, Catalysis and Energy Laboratory, Pondicherry University Puducherry 605 014 India
| | - Mohammad Adnan
- Department of Physics, Nanophotonics Laboratory, Indian Institute of Technology-Delhi New Delhi 110 016 India
| | - Chinnappan Sivasankar
- Department of Chemistry, Catalysis and Energy Laboratory, Pondicherry University Puducherry 605 014 India
| | - G Vijaya Prakash
- Department of Physics, Nanophotonics Laboratory, Indian Institute of Technology-Delhi New Delhi 110 016 India
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2
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Haketa Y, Murakami Y, Maeda H. Ion-pairing assemblies of π-extended anion-responsive organoplatinum complexes. SCIENCE AND TECHNOLOGY OF ADVANCED MATERIALS 2024; 25:2313958. [PMID: 38414575 PMCID: PMC10898271 DOI: 10.1080/14686996.2024.2313958] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/22/2024] [Accepted: 01/29/2024] [Indexed: 02/29/2024]
Abstract
PtII complexes of π-extended dipyrrolyldiketones were synthesized as anion-responsive π-electronic molecules. The dipyrrolyldiketone PtII complexes exhibited red-shifted absorption and photoluminescence properties. In the solid state, [1 + 1]-type anion complexes formed charge-by-charge ion-pairing assemblies when combined with countercations. Detailed theoretical studies of the packing structures revealed favorable interactions between the planar anion complexes and π-electronic cations.
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Affiliation(s)
- Yohei Haketa
- Department of Applied Chemistry, College of Life Sciences, Ritsumeikan University, Kusatsu, Japan
| | - Yu Murakami
- Department of Applied Chemistry, College of Life Sciences, Ritsumeikan University, Kusatsu, Japan
| | - Hiromitsu Maeda
- Department of Applied Chemistry, College of Life Sciences, Ritsumeikan University, Kusatsu, Japan
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3
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Haketa Y, Komatsu K, Sei H, Imoba H, Ota W, Sato T, Murakami Y, Tanaka H, Yasuda N, Tohnai N, Maeda H. Enhanced solid-state phosphorescence of organoplatinum π-systems by ion-pairing assembly. Chem Sci 2024; 15:964-973. [PMID: 38239682 PMCID: PMC10793596 DOI: 10.1039/d3sc04564a] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/30/2023] [Accepted: 12/01/2023] [Indexed: 01/22/2024] Open
Abstract
Anion binding and ion pairing of dipyrrolyldiketone PtII complexes as anion-responsive π-electronic molecules resulted in photophysical modulations, as observed in solid-state phosphorescence properties. Modifications to arylpyridine ligands in the PtII complexes significantly impacted the assembling behaviour and photophysical properties of anion-free and anion-binding (ion-pairing) forms. The PtII complexes, in the presence of guest anions and their countercations, formed various anion-binding modes and ion-pairing assembled structures depending on constituents and forms (solutions and crystals). The PtII complexes emitted strong phosphorescence in deoxygenated solutions but showed extremely weak phosphorescence in the solid state owing to self-association. In contrast, the solid-state ion-pairing assemblies with tetraalkylammonium cations exhibited enhanced phosphorescence owing to the formation of hydrogen-bonding 1D-chain PtII complexes dispersed by stacking with aliphatic cations. Theoretical studies revealed that the enhanced phosphorescence in the solid-state ion-pairing assembly was attributed to preventing the delocalisation of the electron wavefunction over PtII complexes.
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Affiliation(s)
- Yohei Haketa
- Department of Applied Chemistry, College of Life Sciences, Ritsumeikan University Kusatsu 525-8577 Japan
| | - Kaifu Komatsu
- Department of Applied Chemistry, College of Life Sciences, Ritsumeikan University Kusatsu 525-8577 Japan
| | - Hiroi Sei
- Department of Applied Chemistry, Graduate School of Engineering, Osaka University Suita 565-0871 Japan
| | - Hiroki Imoba
- Department of Applied Chemistry, Graduate School of Engineering, Osaka University Suita 565-0871 Japan
| | | | - Tohru Sato
- Fukui Institute for Fundamental Chemistry, Kyoto University Kyoto 606-8103 Japan
- Department of Molecular Engineering, Graduate School of Engineering, Kyoto University Kyoto 615-8510 Japan
| | - Yu Murakami
- Department of Applied Chemistry, College of Life Sciences, Ritsumeikan University Kusatsu 525-8577 Japan
| | - Hiroki Tanaka
- Department of Applied Chemistry, College of Life Sciences, Ritsumeikan University Kusatsu 525-8577 Japan
| | - Nobuhiro Yasuda
- Beamline Division, Japan Synchrotron Radiation Research Institute Sayo 679-5198 Japan
| | - Norimitsu Tohnai
- Department of Applied Chemistry, Graduate School of Engineering, Osaka University Suita 565-0871 Japan
| | - Hiromitsu Maeda
- Department of Applied Chemistry, College of Life Sciences, Ritsumeikan University Kusatsu 525-8577 Japan
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4
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Poveda D, Vivancos Á, Bautista D, González-Herrero P. Photochemically Induced Cyclometalations at Simple Platinum(II) Precursors. Inorg Chem 2023; 62:6207-6213. [PMID: 37043617 PMCID: PMC10131227 DOI: 10.1021/acs.inorgchem.3c00688] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 04/14/2023]
Abstract
Photochemical cycloplatinations of 2-arylpyridines and related C∧N ligands, as well as terdentate heteroaromatic N∧N∧C, N∧C∧N, and N∧C∧C compounds, are demonstrated using (Bu4N)2[Pt2Cl6] or [PtCl2(NCPh)2] as precursors at room temperature. Mono- or bis-cyclometalated Pt(II) complexes with C∧N ligands are obtained depending on excitation wavelength and precursor. Monitoring experiments show that photoexcitation enables both the N-coordination and the subsequent C-H metalation. Photochemical synthetic protocols have been developed, which are advantageous with respect to the established thermal procedures and have allowed the synthesis of the first Pt(II) complexes with N∧C∧C ligands.
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Affiliation(s)
- Dionisio Poveda
- Departamento de Química Inorgánica, Facultad de Química, Universidad de Murcia, Campus de Espinardo, 19, 30100 Murcia, Spain
| | - Ángela Vivancos
- Departamento de Química Inorgánica, Facultad de Química, Universidad de Murcia, Campus de Espinardo, 19, 30100 Murcia, Spain
| | - Delia Bautista
- Área Científica y Técnica de Investigación, Universidad de Murcia, Campus de Espinardo, 21, 30100 Murcia, Spain
| | - Pablo González-Herrero
- Departamento de Química Inorgánica, Facultad de Química, Universidad de Murcia, Campus de Espinardo, 19, 30100 Murcia, Spain
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5
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Kuno A, Hirata G, Tanaka H, Kobayashi Y, Yasuda N, Maeda H. Dipyrrolyldiketone Pt II Complexes: Ion-Pairing π-Electronic Systems with Various Anion-Binding Modes. Chemistry 2021; 27:10068-10076. [PMID: 34002907 DOI: 10.1002/chem.202100855] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/08/2021] [Indexed: 11/10/2022]
Abstract
A variety of π-electronic ion-pairing assemblies can be constructed by combining anion complexes of π-electronic systems and countercations. In this study, a series of anion-responsive π-electronic molecules, dipyrrolyldiketone PtII complexes containing a phenylpyridine ligand, were synthesized. The resulting PtII complexes exhibited phosphorescence emission, with higher emission quantum yields (0.30-0.42) and microsecond-order lifetimes, and solution-state anion binding, as revealed by our spectroscopic analyses. These PtII complexes displayed solid-state ion-pairing assemblies, exhibiting various anion-binding modes, which derived from pyrrole-inverted and pyrrole-non-inverted conformations, and packing structures, with the contribution of charge-by-charge assemblies, which were dependent on the substituents in the PtII complexes and the geometries and electronic states of their countercations.
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Affiliation(s)
- Atsuko Kuno
- Department of Applied Chemistry, College of Life Sciences, Ritsumeikan University, Kusatsu, 525-8577, Japan
| | - Goki Hirata
- Department of Applied Chemistry, College of Life Sciences, Ritsumeikan University, Kusatsu, 525-8577, Japan
| | - Hiroki Tanaka
- Department of Applied Chemistry, College of Life Sciences, Ritsumeikan University, Kusatsu, 525-8577, Japan
| | - Yoichi Kobayashi
- Department of Applied Chemistry, College of Life Sciences, Ritsumeikan University, Kusatsu, 525-8577, Japan
| | - Nobuhiro Yasuda
- Diffraction and Scattering Division, Japan Synchrotron Radiation Research Institute, Sayo, 679-5198, Japan
| | - Hiromitsu Maeda
- Department of Applied Chemistry, College of Life Sciences, Ritsumeikan University, Kusatsu, 525-8577, Japan
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7
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Soellner J, Pinter P, Stipurin S, Strassner T. Platin(II)‐Komplexe mit Bis(pyrazolyl)boratliganden: Gesteigerte molekulare Rigidität bei zweizähnigen Ligandsystemen. Angew Chem Int Ed Engl 2020. [DOI: 10.1002/ange.202011927] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Affiliation(s)
- Johannes Soellner
- Physikalische Organische Chemie Technische Universität Dresden 01069 Dresden Deutschland
| | - Piermaria Pinter
- Physikalische Organische Chemie Technische Universität Dresden 01069 Dresden Deutschland
| | - Sergej Stipurin
- Physikalische Organische Chemie Technische Universität Dresden 01069 Dresden Deutschland
| | - Thomas Strassner
- Physikalische Organische Chemie Technische Universität Dresden 01069 Dresden Deutschland
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8
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Soellner J, Pinter P, Stipurin S, Strassner T. Platinum(II) Complexes with Bis(pyrazolyl)borate Ligands: Increased Molecular Rigidity for Bidentate Ligand Systems. Angew Chem Int Ed Engl 2020; 60:3556-3560. [DOI: 10.1002/anie.202011927] [Citation(s) in RCA: 14] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/01/2020] [Revised: 10/12/2020] [Indexed: 11/09/2022]
Affiliation(s)
- Johannes Soellner
- Physikalische Organische Chemie Technische Universität Dresden 01069 Dresden Germany
| | - Piermaria Pinter
- Physikalische Organische Chemie Technische Universität Dresden 01069 Dresden Germany
| | - Sergej Stipurin
- Physikalische Organische Chemie Technische Universität Dresden 01069 Dresden Germany
| | - Thomas Strassner
- Physikalische Organische Chemie Technische Universität Dresden 01069 Dresden Germany
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9
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Kachi-Terajima C, Mutoh N, Sasada Y, Anjo K. Cyclometalation reactions of platinum complexes with azo- and imine-based ligands: Ligand-dependent and water-induced C–H activation. J Organomet Chem 2020. [DOI: 10.1016/j.jorganchem.2020.121548] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
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10
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Petrenko A, Leitonas K, Volyniuk D, Baryshnikov GV, Belyakov S, Minaev BF, Ågren H, Durgaryan H, GraŽulevičius JV, Arsenyan P. Benzoselenophenylpyridine platinum complexes: green versus red phosphorescence towards hybrid OLEDs. Dalton Trans 2020; 49:3393-3397. [PMID: 32129412 DOI: 10.1039/d0dt00214c] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
The first examples of phosphorescent platinum complexes bearing 2- and 3-(2-pyridyl)benzo[b]selenophenes (PyBSe) were synthesized and fully characterized. Almost identical ionization potential values (5.6 and 5.58 eV) of the solid samples of the Pt complexes were obtained by electron photoemission spectroscopy. Having slightly different molecular design, the solid solutions of the complexes emitted efficient green and red phosphorescence with absolute quantum yields of 52% (for green) and 11.6% (for red). It is demonstrated that the platinum complexes synthesized can be used as phosphorescent dopants for hybrid solution-processable OLEDs.
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Affiliation(s)
- Alla Petrenko
- Latvian Institute of Organic Synthesis, Aizkraukles 21, LV-1006, Riga, Latvia.
| | - Karolis Leitonas
- Kaunas University of Technology, Department of Polymer Chemistry and Technology, Radvilenu pl. 19, LT-50254, Kaunas, Lithuania.
| | - Dmytro Volyniuk
- Kaunas University of Technology, Department of Polymer Chemistry and Technology, Radvilenu pl. 19, LT-50254, Kaunas, Lithuania.
| | - Gleb V Baryshnikov
- Division of Theoretical Chemistry and Biology, School of Engineering Sciences in Chemistry, Biotechnology and Health, KTH Royal Institute of Technology, 10691, Stockholm, Sweden and Department of Chemistry and Nanomaterials Science, Bohdan Khmelnytsky National University, 18031, Cherkasy, Ukraine
| | - Sergey Belyakov
- Latvian Institute of Organic Synthesis, Aizkraukles 21, LV-1006, Riga, Latvia.
| | - Boris F Minaev
- Department of Chemistry and Nanomaterials Science, Bohdan Khmelnytsky National University, 18031, Cherkasy, Ukraine
| | - Hans Ågren
- Division of Theoretical Chemistry and Biology, School of Engineering Sciences in Chemistry, Biotechnology and Health, KTH Royal Institute of Technology, 10691, Stockholm, Sweden and College of Chemistry and Chemical Engineering, Henan University, Kaifeng, Henan 475004, P. R. China
| | - Hranush Durgaryan
- Kaunas University of Technology, Department of Polymer Chemistry and Technology, Radvilenu pl. 19, LT-50254, Kaunas, Lithuania.
| | - Juozas Vidas GraŽulevičius
- Kaunas University of Technology, Department of Polymer Chemistry and Technology, Radvilenu pl. 19, LT-50254, Kaunas, Lithuania.
| | - Pavel Arsenyan
- Latvian Institute of Organic Synthesis, Aizkraukles 21, LV-1006, Riga, Latvia.
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11
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Soellner J, Strassner T. Mesoionic 1,2,3‐Triazolo[1,5‐
a
]pyridine‐3‐ylidenes in Phosphorescent Platinum(II) Complexes. CHEMPHOTOCHEM 2019. [DOI: 10.1002/cptc.201900110] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Affiliation(s)
- Johannes Soellner
- Physikalische Organische ChemieTechnische Universität Dresden 01069 Dresden Germany
| | - Thomas Strassner
- Physikalische Organische ChemieTechnische Universität Dresden 01069 Dresden Germany
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12
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Soellner J, Strassner T. Cyclometalated Platinum(II) Complexes with Mesoionic Dibenzofuranyl‐1,2,3‐triazol‐4‐ylidene Ligands: Synthesis, Characterization and Photophysical Properties. CHEMPHOTOCHEM 2019. [DOI: 10.1002/cptc.201900083] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/27/2022]
Affiliation(s)
- Johannes Soellner
- Physikalische Organische ChemieTechnische Universität Dresden 01069 Dresden Germany) Fax: (+49)351-463-39679
| | - Thomas Strassner
- Physikalische Organische ChemieTechnische Universität Dresden 01069 Dresden Germany) Fax: (+49)351-463-39679
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13
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Zábranský M, Soellner J, Horký F, Císařová I, Štěpnička P, Strassner T. Synthesis and Characterization of Cyclometalated NHC Platinum Complexes with Chelating Carboxylate Ligands. Eur J Inorg Chem 2019. [DOI: 10.1002/ejic.201900216] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
Affiliation(s)
- Martin Zábranský
- Department of Inorganic Chemistry Faculty of Science Charles University Hlavova 2030, 12840 Prague Czech Republic
| | - Johannes Soellner
- Physikalische Organische Chemie Faculty of Science Technische Universität Dresden Bergstrasse 66 01069 Dresden Germany
| | - Filip Horký
- Department of Inorganic Chemistry Faculty of Science Charles University Hlavova 2030, 12840 Prague Czech Republic
| | - Ivana Císařová
- Department of Inorganic Chemistry Faculty of Science Charles University Hlavova 2030, 12840 Prague Czech Republic
| | - Petr Štěpnička
- Department of Inorganic Chemistry Faculty of Science Charles University Hlavova 2030, 12840 Prague Czech Republic
| | - Thomas Strassner
- Physikalische Organische Chemie Faculty of Science Technische Universität Dresden Bergstrasse 66 01069 Dresden Germany
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14
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Hussain F, Wang X, Wang S. Impact of bidentate N,C-Chelate ligands on the performance of phosphorescent Pt(II) complexes as oxygen sensors. J Organomet Chem 2019. [DOI: 10.1016/j.jorganchem.2018.11.017] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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15
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Soellner J, Strassner T. Phosphorescent Cyclometalated Platinum(II) aNHC Complexes. Chemistry 2018; 24:15603-15612. [PMID: 30216572 DOI: 10.1002/chem.201802725] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/29/2018] [Revised: 07/16/2018] [Indexed: 02/05/2023]
Abstract
The synthesis and characterization of the first bidentate C^C* cyclometalated platinum(II) complexes based on abnormal N-heterocyclic carbenes (aNHC) is presented. The aNHC ligand precursors are prepared from benzonitriles and anilines to form 1,2,3-trisubstituted imidazolium salts. The title compounds were synthesized by in situ generation of the silver carbene complex, followed by transmetalation to platinum and subsequent introduction of the β-diketonate ligand. Structural characterization by 2D NMR experiments, as well as solid-state structures unequivocally prove the abnormal binding mode of the aNHC ligands. Additionally, the photophysical properties of the platinum(II) complexes were examined and studied in detail by DFT calculations and cyclic voltammetry experiments. The title compounds proved to be strongly emissive at room temperature in the green to orange region of the visible spectrum, with emission efficiencies of up to 69 %.
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Affiliation(s)
- Johannes Soellner
- Physikalische Organische Chemie, Technische Universität Dresden, 01069, Dresden, Germany), Fax: (+49) 351-463-39679
| | - Thomas Strassner
- Physikalische Organische Chemie, Technische Universität Dresden, 01069, Dresden, Germany), Fax: (+49) 351-463-39679
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Adamovich V, Bajo S, Boudreault PLT, Esteruelas MA, López AM, Martín J, Oliván M, Oñate E, Palacios AU, San-Torcuato A, Tsai JY, Xia C. Preparation of Tris-Heteroleptic Iridium(III) Complexes Containing a Cyclometalated Aryl-N-Heterocyclic Carbene Ligand. Inorg Chem 2018; 57:10744-10760. [DOI: 10.1021/acs.inorgchem.8b01367] [Citation(s) in RCA: 29] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
Affiliation(s)
- Vadim Adamovich
- Universal Display Corporation, 375 Phillips Boulevard, Ewing, New Jersey 08618, United States
| | - Sonia Bajo
- Departamento de Química Inorgánica, Instituto de Síntesis Química y Catálisis Homogénea, Centro de Innovación en Química Avanzada, Universidad de Zaragoza, CSIC, Zaragoza 50009, Spain
| | | | - Miguel A. Esteruelas
- Departamento de Química Inorgánica, Instituto de Síntesis Química y Catálisis Homogénea, Centro de Innovación en Química Avanzada, Universidad de Zaragoza, CSIC, Zaragoza 50009, Spain
| | - Ana M. López
- Departamento de Química Inorgánica, Instituto de Síntesis Química y Catálisis Homogénea, Centro de Innovación en Química Avanzada, Universidad de Zaragoza, CSIC, Zaragoza 50009, Spain
| | - Jaime Martín
- Departamento de Química Inorgánica, Instituto de Síntesis Química y Catálisis Homogénea, Centro de Innovación en Química Avanzada, Universidad de Zaragoza, CSIC, Zaragoza 50009, Spain
| | - Montserrat Oliván
- Departamento de Química Inorgánica, Instituto de Síntesis Química y Catálisis Homogénea, Centro de Innovación en Química Avanzada, Universidad de Zaragoza, CSIC, Zaragoza 50009, Spain
| | - Enrique Oñate
- Departamento de Química Inorgánica, Instituto de Síntesis Química y Catálisis Homogénea, Centro de Innovación en Química Avanzada, Universidad de Zaragoza, CSIC, Zaragoza 50009, Spain
| | - Adrián U. Palacios
- Departamento de Química Inorgánica, Instituto de Síntesis Química y Catálisis Homogénea, Centro de Innovación en Química Avanzada, Universidad de Zaragoza, CSIC, Zaragoza 50009, Spain
| | - Ainhoa San-Torcuato
- Departamento de Química Inorgánica, Instituto de Síntesis Química y Catálisis Homogénea, Centro de Innovación en Química Avanzada, Universidad de Zaragoza, CSIC, Zaragoza 50009, Spain
| | - Jui-Yi Tsai
- Universal Display Corporation, 375 Phillips Boulevard, Ewing, New Jersey 08618, United States
| | - Chuanjun Xia
- Universal Display Corporation, 375 Phillips Boulevard, Ewing, New Jersey 08618, United States
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17
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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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18
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Soellner J, Strassner T. Diaryl-1,2,3-Triazolylidene Platinum(II) Complexes. Chemistry 2018; 24:5584-5590. [DOI: 10.1002/chem.201705738] [Citation(s) in RCA: 28] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/04/2017] [Indexed: 11/06/2022]
Affiliation(s)
- Johannes Soellner
- Physikalische Organische Chemie; Technische Universität Dresden; 01069 Dresden Germany
| | - Thomas Strassner
- Physikalische Organische Chemie; Technische Universität Dresden; 01069 Dresden Germany
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19
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Leopold H, Strassner T. 4,5-Substituted C^C* cyclometalated thiazol-2-ylidene platinum(ii) complexes - synthesis and photophysical properties. Dalton Trans 2018; 46:7800-7812. [PMID: 28590491 DOI: 10.1039/c7dt00828g] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/07/2023]
Abstract
We report the synthesis of seven novel backbone functionalized N-phenyl-1,3-thiazol-2-ylidene platinum(ii) complexes and their photophysical properties. Electronically diverse N-phenyl-1,3-thiazol-2-thiones were prepared by a reaction of aniline with carbon disulfide and different α-haloketone compounds. Oxidative desulfuration and salt metathesis yielded the desired NHC-precursors with hexafluorophosphate counterions. In addition, a new route for the synthesis of N-phenyl-1,3-benzo[d]thiazole tetrafluoroborate via N-arylation using hypervalent iodine species is presented. All complexes were prepared from the corresponding NHC precursor in a one-pot process using silver(i)oxide, transmetalation to platinum and reaction with the β-diketone acetylacetone under basic conditions. These complexes exhibit strong phosphorescence with quantum yields up to 72% in 2 wt% PMMA films with decay lifetimes of 8.8-12.3 μs. The influence of methyl- and phenyl-groups, and an ester-substituent at the 4- and/or 5-position of the 1,3-thiazole moiety, as well as the N-phenyl-1,3-benzo[d]thiazole-derived motif is discussed. The 4,5-unsubstituted-N-phenyl-1,3-thiazol-2-ylidene platinum(ii) acetylacetonato complex served as a reference in this study to evaluate the electronic effects originating from the backbone substitution. All complexes emit in a narrow range of the bluish-green spectrum of the visible light (510 ± 10 nm).
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Affiliation(s)
- Hendrik Leopold
- Physikalische Organische Chemie, Technische Universität Dresden, Bergstrasse 66, 01069 Dresden, Germany.
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20
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Mayder DM, Thompson KA, Christopherson CJ, Paisley NR, Hudson ZM. An efficient room-temperature synthesis of highly phosphorescent styrenic Pt(ii) complexes and their polymerization by ATRP. Polym Chem 2018. [DOI: 10.1039/c8py01337c] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/09/2023]
Abstract
Cyclometalated Pt(ii) complexes are among the most efficient phosphorescent materials, yet their incorporation into polymers remains rare.
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Affiliation(s)
- Don M. Mayder
- Department of Chemistry
- The University of British Columbia
- Vancouver
- Canada
| | - Kyle A. Thompson
- Department of Chemistry
- The University of British Columbia
- Vancouver
- Canada
| | | | - Nathan R. Paisley
- Department of Chemistry
- The University of British Columbia
- Vancouver
- Canada
| | - Zachary M. Hudson
- Department of Chemistry
- The University of British Columbia
- Vancouver
- Canada
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21
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Fuertes S, Chueca AJ, Arnal L, Martín A, Giovanella U, Botta C, Sicilia V. Heteroleptic Cycloplatinated N-Heterocyclic Carbene Complexes: A New Approach to Highly Efficient Blue-Light Emitters. Inorg Chem 2017; 56:4829-4839. [PMID: 28387513 DOI: 10.1021/acs.inorgchem.6b02826] [Citation(s) in RCA: 43] [Impact Index Per Article: 6.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
New heteroleptic compounds of platinum(II)-containing cyclometalated N-heterocyclic carbenes, [PtCl(R-C^C*)(PPh3)] [R-CH^C*-κC* = 3-methyl-1-(naphthalen-2-yl)-1H-imidazol-2-ylidene (R-C = Naph; 1A), 1-[4-(ethoxycarbonyl)phenyl]-3-methyl-1H-imidazol-2-ylidene (R = CO2Et; 1B), and [Pt(R-C^C*)(py)(PPh3)]PF6 (py = pyridine; R-C = Naph, 2A; R = CO2Et, 2B], have been prepared and fully characterized. All of them were obtained as the trans-(C*,PPh3) isomer in high yields. The selectivity of their synthesis has been explained in terms of the degree of transphobia (T) of pairs of ligands in trans positions. X-ray diffraction studies on both 2A and 2B revealed that only in 2A, containing a C^C* with a more extended π system, do the molecules assemble themselves into head-to-tail pairs through intermolecular π···π contacts. The photophysical properties of 2A and 2B and those of the related compounds [Pt(NC-C^C*)(PPh3)L]PF6 [NC-CH^C*-κC* = 1-(4-cyanophenyl)-3-methyl-1H-imidazol-2-ylidene; L = pyridine (py; 2C), 2,6-dimethylphenylisocyanide (CNXyl; 3C), and 2-mercapto-1-methylimidazole (MMI; 4C)] have been examined to analyze the influence of the R substituent on R-C^C* (R-C = Naph; R = CO2Et, CN) and that of the ancillary ligands (L) on them. Experimental data and time-dependent density functional theory calculations showed the similarity of the electronic features associated with R-C^C* (R = CN, CO2Et) and their difference with respect to R-C^C* (R-C = Naph). All of the compounds are very efficient blue emitters in poly(methyl methacrylate) films under an argon atmosphere, with QY values ranging from 68% (2B) to 93% (2C). In the solid state, the color of the emission changes to yellowish-orange for compounds 2A (λmax = 600 nm) and 3C (λmax = 590 nm) because of the formation of aggregates through intermolecular π···π interactions. 2C and 3C were chosen to fabricate fully solution-processed electroluminescent devices with blue-light (2C), yellow-orange-light (3C), and white-light (mixtures of 2C and 3C) emission from neat films of the compounds as emitting layers.
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Affiliation(s)
- Sara Fuertes
- Departamento de Química Inorgánica, Facultad de Ciencias, Instituto de Síntesis Química y Catálisis Homogénea, CSIC, Universidad de Zaragoza , Pedro Cerbuna 12, 50009 Zaragoza, Spain
| | - Andrés J Chueca
- Departamento de Química Inorgánica, Facultad de Ciencias, Instituto de Síntesis Química y Catálisis Homogénea, CSIC, Universidad de Zaragoza , Pedro Cerbuna 12, 50009 Zaragoza, Spain
| | - Lorenzo Arnal
- Departamento de Química Inorgánica, Facultad de Ciencias, Instituto de Síntesis Química y Catálisis Homogénea, CSIC, Universidad de Zaragoza , Pedro Cerbuna 12, 50009 Zaragoza, Spain
| | - Antonio Martín
- Departamento de Química Inorgánica, Facultad de Ciencias, Instituto de Síntesis Química y Catálisis Homogénea, CSIC, Universidad de Zaragoza , Pedro Cerbuna 12, 50009 Zaragoza, Spain
| | - Umberto Giovanella
- Istituto per lo Studio delle Macromolecole, Consiglio Nazionale delle Ricerche (CNR) , Via Corti 12, 20133 Milano, Italy
| | - Chiara Botta
- Istituto per lo Studio delle Macromolecole, Consiglio Nazionale delle Ricerche (CNR) , Via Corti 12, 20133 Milano, Italy
| | - Violeta Sicilia
- Departamento de Química Inorgánica, Escuela de Ingeniería y Arquitectura de Zaragoza, Instituto de Síntesis Química y Catálisis Homogénea, CSIC, Universidad de Zaragoza , Campus Río Ebro, Edificio Torres Quevedo, 50018 Zaragoza, Spain
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22
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Moussa J, Loch A, Chamoreau LM, Degli Esposti A, Bandini E, Barbieri A, Amouri H. Luminescent Cyclometalated Platinum Complexes with π-Bonded Catecholate Organometallic Ligands. Inorg Chem 2017; 56:2050-2059. [PMID: 28182410 DOI: 10.1021/acs.inorgchem.6b02731] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
A series of cyclometalated platinum(II) complexes of the type [(ppy)Pt(LM)]n+ (n = 0, 1) with π-bonded catecholates acting as organometallic ligands (LM) have been prepared and characterized by analytical techniques. In addition, the structures of two complexes of the series were determined by single-crystal X-ray diffraction. The packing shows the formation of a 1D supramolecular assembly generated by dPt-πCp* interactions among individual units. All complexes are luminescent in the solid state and in solution media. The results of photophysics have been rationalized by means of density functional theory (DFT) and time-dependent DFT investigations.
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Affiliation(s)
- Jamal Moussa
- Sorbonne Universités, UPMC Universités Paris 06, and CNRS, IPCM, UMR 8232 , 4 place Jussieu, 75252 Paris Cedex 05, France
| | - Aruny Loch
- Sorbonne Universités, UPMC Universités Paris 06, and CNRS, IPCM, UMR 8232 , 4 place Jussieu, 75252 Paris Cedex 05, France
| | - Lise-Marie Chamoreau
- Sorbonne Universités, UPMC Universités Paris 06, and CNRS, IPCM, UMR 8232 , 4 place Jussieu, 75252 Paris Cedex 05, France
| | - Alessandra Degli Esposti
- Istituto per la Sintesi Organica e la Fotoreattività (ISOF), Consiglio Nazionale delle Ricerche (CNR) , Via Gobetti 101, 40129 Bologna, Italy
| | - Elisa Bandini
- Istituto per la Sintesi Organica e la Fotoreattività (ISOF), Consiglio Nazionale delle Ricerche (CNR) , Via Gobetti 101, 40129 Bologna, Italy
| | - Andrea Barbieri
- Istituto per la Sintesi Organica e la Fotoreattività (ISOF), Consiglio Nazionale delle Ricerche (CNR) , Via Gobetti 101, 40129 Bologna, Italy
| | - Hani Amouri
- Sorbonne Universités, UPMC Universités Paris 06, and CNRS, IPCM, UMR 8232 , 4 place Jussieu, 75252 Paris Cedex 05, France
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23
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Henwood AF, Webster J, Cordes D, Slawin AZ, Jacquemin D, Zysman-Colman E. Phosphorescent platinum(ii) complexes bearing pentafluorosulfanyl substituted cyclometalating ligands. RSC Adv 2017. [DOI: 10.1039/c7ra03190d] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022] Open
Abstract
The first examples of phosphorescent platinum(ii) complexes bearing pentafluorosulfanyl (–SF5) substituted cyclometalating ligands (C^N) are reported.
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Affiliation(s)
- Adam F. Henwood
- Organic Semiconductor Centre
- EaStCHEM School of Chemistry
- University of St Andrews
- Fife
- UK
| | - James Webster
- Organic Semiconductor Centre
- EaStCHEM School of Chemistry
- University of St Andrews
- Fife
- UK
| | - David Cordes
- EaStCHEM School of Chemistry
- University of St. Andrews
- Fife
- UK
| | | | - Denis Jacquemin
- Laboratoire CEISAM, UMR CNRS-6230
- Université de Nantes
- 44322 Nantes Cedex 3
- France
- Institut Universitaire de France
| | - Eli Zysman-Colman
- Organic Semiconductor Centre
- EaStCHEM School of Chemistry
- University of St Andrews
- Fife
- UK
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24
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Leopold H, Heinemeyer U, Wagenblast G, Münster I, Strassner T. Changing the Emission Properties of Phosphorescent C^C*-Cyclometalated Thiazol-2-ylidene Platinum(II) Complexes by Variation of the β-Diketonate Ligands. Chemistry 2016; 23:1118-1128. [PMID: 27859741 DOI: 10.1002/chem.201604456] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/21/2016] [Indexed: 11/08/2022]
Abstract
Cyclometalated thiazol-2-ylidene platinum(II) complexes based on the N-phenyl-4,5-dimethyl-1,3-thiazol-2-ylidene N-heterocyclic carbene (NHC) ligand and seven different β-diketonate ligands have been synthesised and investigated for their structural and photophysical properties. The complexes were synthesised in a one-pot procedure starting with the in situ formation of the corresponding silver(I) carbene and transmetalation to platinum, followed by the reaction with the respective β-diketonate under basic conditions. All the compounds were fully characterised by standard techniques, including 195 Pt NMR spectroscopy. Three solid-state structures revealed quite different aggregation behaviour depending on the β-diketonate architecture. The reported complexes showed strong phosphorescence at room temperature in amorphous poly(methyl methacrylate) films. The emission wavelengths (ca. 510 nm) were found to be independent of the β-diketonate ligand, but the electronically diverse β-diketonates strongly influence the observed quantum yields (QY) and decay lifetimes. The results of theoretical studies employing density functional theory (DFT) methods support the conclusion of a metal-to-ligand charge transfer (3 MLCT) as the main emission process, in accordance with the reported photophysical properties. Standard organic light-emitting diodes (OLEDs) prepared with unoptimised matrix materials using one of the complexes showed values of 12.3 % external quantum yield, 24.0 lm W-1 luminous efficacy and 37.8 cd A-1 current efficiency at 300 cd m-2 .
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Affiliation(s)
- Hendrik Leopold
- Physikalische Organische Chemie, Technische Universität Dresden, 01069, Dresden, Germany
| | | | | | | | - Thomas Strassner
- Physikalische Organische Chemie, Technische Universität Dresden, 01069, Dresden, Germany
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25
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Esteruelas MA, Oñate E, Palacios A, Tsai JY, Xia C. Preparation of Capped Octahedral OsHC6 Complexes by Sequential Carbon-Directed C–H Bond Activation Reactions. Organometallics 2016. [DOI: 10.1021/acs.organomet.6b00436] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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, 50009 Zaragoza, 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, 50009 Zaragoza, Spain
| | - Adrián Palacios
- Departamento
de Química Inorgánica, Instituto de Síntesis
Química y Catálisis Homogénea (ISQCH), Centro
de Innovación en Química Avanzada (ORFEO−CINQA), Universidad de Zaragoza−CSIC, 50009 Zaragoza, Spain
| | - Jui-Yi Tsai
- Universal Display Corporation, 375 Phillips Boulevard, Ewing, New Jersey 08618, United States
| | - Chuanjun Xia
- Universal Display Corporation, 375 Phillips Boulevard, Ewing, New Jersey 08618, United States
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26
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Fuertes S, Chueca AJ, Perálvarez M, Borja P, Torrell M, Carreras J, Sicilia V. White Light Emission from Planar Remote Phosphor Based on NHC Cycloplatinated Complexes. ACS APPLIED MATERIALS & INTERFACES 2016; 8:16160-16169. [PMID: 27268265 DOI: 10.1021/acsami.6b03288] [Citation(s) in RCA: 42] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/06/2023]
Abstract
We report on the generation of bright white luminescence through solid-state illumination of remote phosphors based on novel cycloplatinated N-heterocyclic carbene (NHC) compounds. Following a stepwise protocol we got the new NHC compound [{Pt(μ-Cl)(C(∧)C*)}2] (4) (HC(∧)C*-κC* = 1-(4-(ethoxycarbonyl)phenyl)-3-methyl-1H-imidazol-2-ylidene), which was used together with the related ones 4a (HC(∧)C*-κC*= 1-(4-cyanophenyl)-3-methyl-1H-imidazol-2-ylidene) and 4b (HC(∧)C*-κC*= 3-methyl-1-(naphthalen-2-yl)-1H-imidazol-2-ylidene) as starting materials for the synthesis of the new ionic derivatives [Pt(R-C(∧)C*) (CNR')2]PF6 (R = -COOEt, R' = t-Bu (5), Xyl (6); R = -CN, R' = t-Bu (7), Xyl (8); R(∧)C = Naph, R' = t-Bu (9), Xyl (10)). The X-ray structures of 6 and 8-10 have been determined. The photophysical properties of these cationic compounds have been studied and supported by the time-dependent-density functional theory (TD-DFT) calculations. The compounds 5, 8, and 9 have been revealed as the most efficient emitters in the solid state with quantum yields of 41%, 21%, and 40%, respectively. White-light remote-phosphors have been prepared just by stacking different combinations of these compounds and [Pt(bzq) (CN) (CN(t)Bu)] (R1) as blue (5, 8), yellow (9), and red (R1) components onto the same substrate. The CCT (correlated color temperature) and the CRI (color rendering index) of the emitted white-light have been tuned by accurately controlling the individual contributions.
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Affiliation(s)
- Sara Fuertes
- Departamento de Química Inorgánica, Facultad de Ciencias, Instituto de Síntesis Química y Catálisis Homogénea (ISQCH), CSIC-Universidad de Zaragoza , Pedro Cerbuna 12, 50009, Zaragoza, Spain
| | - Andrés J Chueca
- Departamento de Química Inorgánica, Facultad de Ciencias, Instituto de Síntesis Química y Catálisis Homogénea (ISQCH), CSIC-Universidad de Zaragoza , Pedro Cerbuna 12, 50009, Zaragoza, Spain
| | - Mariano Perálvarez
- IREC, Catalonia Institute for Energy Research , Jardins de les Dones de Negre 1, PL2, 08930 Sant Adrià de Besòs, Barcelona Spain
| | - Pilar Borja
- Departamento de Química Inorgánica, Facultad de Ciencias, Instituto de Síntesis Química y Catálisis Homogénea (ISQCH), CSIC-Universidad de Zaragoza , Pedro Cerbuna 12, 50009, Zaragoza, Spain
| | - Marc Torrell
- IREC, Catalonia Institute for Energy Research , Jardins de les Dones de Negre 1, PL2, 08930 Sant Adrià de Besòs, Barcelona Spain
| | - Josep Carreras
- IREC, Catalonia Institute for Energy Research , Jardins de les Dones de Negre 1, PL2, 08930 Sant Adrià de Besòs, Barcelona Spain
| | - Violeta Sicilia
- Departamento de Química Inorgánica, Escuela de Ingeniería y Arquitectura de Zaragoza, Instituto de Síntesis Química y Catálisis Homogénea (ISQCH), CSIC-Universidad de Zaragoza , Campus Río Ebro, Edificio Torres Quevedo, 50018, Zaragoza, Spain
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27
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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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28
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Reiß F, Altenburger K, Becker L, Schubert K, Jiao H, Spannenberg A, Hollmann D, Arndt P, Rosenthal U. Reactions of 2-Substituted Pyridines with Titanocenes and Zirconocenes: Coupling versus Dearomatisation. Chemistry 2016; 22:3361-3369. [DOI: 10.1002/chem.201504411] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/03/2015] [Indexed: 11/11/2022]
Affiliation(s)
- Fabian Reiß
- Leibniz-Institut für Katalyse e.V. an der; Universität Rostock; Albert-Einstein-Strasse 29a 18059 Rostock Germany
| | - Kai Altenburger
- Leibniz-Institut für Katalyse e.V. an der; Universität Rostock; Albert-Einstein-Strasse 29a 18059 Rostock Germany
| | - Lisanne Becker
- Leibniz-Institut für Katalyse e.V. an der; Universität Rostock; Albert-Einstein-Strasse 29a 18059 Rostock Germany
| | - Kathleen Schubert
- Leibniz-Institut für Katalyse e.V. an der; Universität Rostock; Albert-Einstein-Strasse 29a 18059 Rostock Germany
| | - Haijun Jiao
- Leibniz-Institut für Katalyse e.V. an der; Universität Rostock; Albert-Einstein-Strasse 29a 18059 Rostock Germany
| | - Anke Spannenberg
- Leibniz-Institut für Katalyse e.V. an der; Universität Rostock; Albert-Einstein-Strasse 29a 18059 Rostock Germany
| | - Dirk Hollmann
- Leibniz-Institut für Katalyse e.V. an der; Universität Rostock; Albert-Einstein-Strasse 29a 18059 Rostock Germany
| | - Perdita Arndt
- Leibniz-Institut für Katalyse e.V. an der; Universität Rostock; Albert-Einstein-Strasse 29a 18059 Rostock Germany
| | - Uwe Rosenthal
- Leibniz-Institut für Katalyse e.V. an der; Universität Rostock; Albert-Einstein-Strasse 29a 18059 Rostock Germany
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29
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Fuertes S, Chueca AJ, Sicilia V. Exploring the Transphobia Effect on Heteroleptic NHC Cycloplatinated Complexes. Inorg Chem 2015; 54:9885-95. [DOI: 10.1021/acs.inorgchem.5b01655] [Citation(s) in RCA: 32] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/14/2023]
Affiliation(s)
- Sara Fuertes
- Departamento de Química Inorgánica,
Facultad de Ciencias, Instituto de Síntesis Química
y Catálisis Homogénea (ISQCH), CSIC-Universidad de Zaragoza, Pedro Cerbuna 12, 50009 Zaragoza, Spain
| | - Andrés J. Chueca
- Departamento de Química Inorgánica,
Facultad de Ciencias, Instituto de Síntesis Química
y Catálisis Homogénea (ISQCH), CSIC-Universidad de Zaragoza, Pedro Cerbuna 12, 50009 Zaragoza, Spain
| | - Violeta Sicilia
- Departamento de
Química Inorgánica, Escuela de Ingeniería y Arquitectura
de Zaragoza, Instituto de Síntesis Química y Catálisis
Homogénea (ISQCH), CSIC-Universidad de Zaragoza, Campus Río
Ebro, Edificio Torres Quevedo, 50018 Zaragoza, Spain
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30
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Fukuda K, Sugaya T, Ishihara K. Crystal structure of [5-bromo-2-(pyridin-2-yl-κN)phenyl-κC (1)](pentane-2,4-dionato-κ (2) O,O')platinum(II). Acta Crystallogr E Crystallogr Commun 2015; 71:1259-61. [PMID: 26594420 PMCID: PMC4647431 DOI: 10.1107/s2056989015017478] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/07/2015] [Accepted: 09/18/2015] [Indexed: 11/10/2022]
Abstract
The title cyclo-metalated platinum(II) complex with 2-(4-bromo-phen-yl)pyridinato and acetyl-acetonato ligands, [Pt(C11H7BrN)(C5H7O2)], consists of two crystallographically non-equivalent dimers, each stacked by π-π inter-actions with distances of ≃ 3.4 Å. In both dimers, the platinum(II) complexes are arranged anti-parallel to each other. Each complex exhibits a slightly distorted square-planar coordination environment around the central Pt(II) atom. The dihedral angles between two chelate rings including the Pt(II) atom in these complexes are 0.08 (12) and 1.54 (9)°.
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Affiliation(s)
- Keito Fukuda
- Department of Chemistry and Biochemistry, School of Advanced Science and Engineering, Waseda University, Okubo, Shinjuku-ku, Tokyo 169-8555, Japan
| | - Tomoaki Sugaya
- Department of Chemistry and Biochemistry, School of Advanced Science and Engineering, Waseda University, Okubo, Shinjuku-ku, Tokyo 169-8555, Japan
| | - Koji Ishihara
- Department of Chemistry and Biochemistry, School of Advanced Science and Engineering, Waseda University, Okubo, Shinjuku-ku, Tokyo 169-8555, Japan
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31
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Stacey OJ, Platts JA, Coles SJ, Horton PN, Pope SJA. Phosphorescent, Cyclometalated Cinchophen-Derived Platinum Complexes: Syntheses, Structures, and Electronic Properties. Inorg Chem 2015; 54:6528-36. [DOI: 10.1021/acs.inorgchem.5b00817] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Oliver J. Stacey
- School
of Chemistry, Main Building, Cardiff University, Cardiff CF10 3AT, Cymru/Wales, United Kingdom
| | - James A. Platts
- School
of Chemistry, Main Building, Cardiff University, Cardiff CF10 3AT, Cymru/Wales, United Kingdom
| | - Simon J. Coles
- National
Crystallographic Service, Chemistry, Faculty of Natural and Environmental
Sciences, University of Southampton, Highfield, Southampton, SO17 1 BJ, United Kingdom
| | - Peter N. Horton
- National
Crystallographic Service, Chemistry, Faculty of Natural and Environmental
Sciences, University of Southampton, Highfield, Southampton, SO17 1 BJ, United Kingdom
| | - Simon J. A. Pope
- School
of Chemistry, Main Building, Cardiff University, Cardiff CF10 3AT, Cymru/Wales, United Kingdom
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32
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Park KM, Lee J, Kang Y. Crystal structure of [2,6-di-fluoro-3-(pyridin-2-yl-κN)pyridin-4-yl-κC (4)](pentane-2,4-dionato-κ(2) O,O')platinum(II). ACTA CRYSTALLOGRAPHICA SECTION E-CRYSTALLOGRAPHIC COMMUNICATIONS 2015; 71:354-6. [PMID: 26029388 PMCID: PMC4438810 DOI: 10.1107/s2056989015004375] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 02/12/2015] [Accepted: 03/03/2015] [Indexed: 11/18/2022]
Abstract
The PtII atom adopts a distorted square-planar coordination geometry, being C,N-chelated by a 2′,6′-difluoro-2,3′-bipyridine ligand and O,O′-chelated by a pentane-2,4-dionato anionic ligand. The asymmetric unit of the title compound, [Pt(C10H5F2N2)(C5H7O2)], comprises one PtII atom, one 2,6-difluoro-2,3-bipyridine ligand and one acetylacetonate anion. The PtII atom adopts a distorted square-planar coordination geometry, being C,N-chelated by the 2,6-difluoro-3-(pyridin-2-yl)pyridin-4-yl ligand and O,O′-chelated by the pentane-2,4-dionate ligand. The two pyridine rings of the bipyridine ligand are approximately coplanar, making a dihedral angle of 1.2 (2)°. A variety of intra- and intermolecular C—H⋯O and C—H⋯F hydrogen bonds, as well as π–π interactions [centroid–centroid distances = 4.337 (3) and 3.774 (3) Å] contribute to the stabilization of the molecular and crystal structures, and result in the formation of a three-dimensional supramolecular framework.
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Affiliation(s)
- Ki-Min Park
- Research Institute of Natural Science, Gyeongsang National University, Jinju 660-701, Republic of Korea
| | - Jieun Lee
- Division of Science Education, Kangwon National University, Chuncheon 220-701, Republic of Korea
| | - Youngjin Kang
- Division of Science Education, Kangwon National University, Chuncheon 220-701, Republic of Korea
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33
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Triarylboron-Functionalized Metal Complexes for OLEDs. GREEN CHEMISTRY AND SUSTAINABLE TECHNOLOGY 2015. [DOI: 10.1007/978-3-662-46054-2_8] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/06/2023]
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34
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Ko SB, Park HJ, Gong S, Wang X, Lu ZH, Wang S. Blue phosphorescent N-heterocyclic carbene chelated Pt(ii) complexes with an α-duryl-β-diketonato ancillary ligand. Dalton Trans 2015; 44:8433-43. [DOI: 10.1039/c4dt03085k] [Citation(s) in RCA: 45] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Abstract
Blue phosphorescent Pt(ii) complexes that display bright blue emission in the solid state have been obtained employing NHC-based C∧C*-chelate ligands and an α-duryl-β-diketonato ancillary ligand that provides steric blocking to minimize intermolecular interactions.
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Affiliation(s)
- Soo-Byung Ko
- Department of Chemistry
- Queen's University
- Kingston
- Canada
| | - Hee-Jun Park
- Department of Chemistry
- Queen's University
- Kingston
- Canada
| | - Shaolong Gong
- Department of Materials Science and Engineering
- University of Toronto
- Toronto
- Canada
| | - Xiang Wang
- Department of Chemistry
- Queen's University
- Kingston
- Canada
| | - Zheng-Hong Lu
- Department of Materials Science and Engineering
- University of Toronto
- Toronto
- Canada
| | - Suning Wang
- Department of Chemistry
- Queen's University
- Kingston
- Canada
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35
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Fuertes S, García H, Perálvarez M, Hertog W, Carreras J, Sicilia V. Stepwise Strategy to Cyclometallated PtIIComplexes with N-Heterocyclic Carbene Ligands: A Luminescence Study on New β-Diketonate Complexes. Chemistry 2014; 21:1620-31. [DOI: 10.1002/chem.201404915] [Citation(s) in RCA: 45] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/19/2014] [Indexed: 01/12/2023]
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36
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Belzile MN, Wang X, Hudson ZM, Wang S. Impact of constitutional isomerism on phosphorescence and anion-sensing properties of donor–acceptor organoboron Pt(ii) complexes. Dalton Trans 2014; 43:13696-703. [DOI: 10.1039/c4dt01949k] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
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37
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Di Matteo L, Christodoulakis O, Filosa R, De Caprariis P, Di Mola A, Vasca E, Massa A. New chelating agents for Cu(II), Fe(III), Al(III), and Zn(II) based on β-diketonate-3-substituted phthalide (isobenzofuranone) and isoindolinone. J COORD CHEM 2014. [DOI: 10.1080/00958972.2014.939075] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
Affiliation(s)
- Luana Di Matteo
- Dipartimento di Chimica e Biologia, Università di Salerno , Fisciano, Italy
| | | | - Rosanna Filosa
- Department of Experimental Medicine, University of Naples , Naples, Italy
| | - Paolo De Caprariis
- Dipartimento di Farmacia/DIFARMA, Università di Salerno , Fisciano, Italy
| | - Antonia Di Mola
- Dipartimento di Chimica e Biologia, Università di Salerno , Fisciano, Italy
| | - Ermanno Vasca
- Dipartimento di Chimica e Biologia, Università di Salerno , Fisciano, Italy
| | - Antonio Massa
- Dipartimento di Chimica e Biologia, Università di Salerno , Fisciano, Italy
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38
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Liu C, Song X, Wang Z, Qiu J. 2-Phenylquinoline-Based Cyclometalated Platinum(II) Complexes: Synthesis and Structure-Photoelectric Properties Relationship in Oxygen Sensing. Chempluschem 2014. [DOI: 10.1002/cplu.201402125] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
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39
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Micksch M, Tenne M, Strassner T. C∧N-Cyclometalated Platinum(II) Complexes with Sterically Demanding 1,2-Diarylimidazole Ligands. Organometallics 2014. [DOI: 10.1021/om500383b] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Affiliation(s)
- Maik Micksch
- Physikalische
Organische Chemie, Technische Universität Dresden, 01069 Dresden, Germany
| | - Mario Tenne
- Physikalische
Organische Chemie, Technische Universität Dresden, 01069 Dresden, Germany
| | - Thomas Strassner
- Physikalische
Organische Chemie, Technische Universität Dresden, 01069 Dresden, Germany
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40
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Xu S, Haeffner F, Li B, Zakharov LN, Liu SY. Monobenzofused 1,4-Azaborines: Synthesis, Characterization, and Discovery of a Unique Coordination Mode. Angew Chem Int Ed Engl 2014. [DOI: 10.1002/ange.201403903] [Citation(s) in RCA: 26] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
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41
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Xu S, Haeffner F, Li B, Zakharov LN, Liu SY. Monobenzofused 1,4-azaborines: synthesis, characterization, and discovery of a unique coordination mode. Angew Chem Int Ed Engl 2014; 53:6795-9. [PMID: 24838444 DOI: 10.1002/anie.201403903] [Citation(s) in RCA: 59] [Impact Index Per Article: 5.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/01/2014] [Indexed: 11/07/2022]
Abstract
We report the first general synthesis of boron-substituted monobenzofused 1,4-azaborines using ring-closing metathesis of an enamine-containing diene as a key synthetic strategy. As part of our investigations, we discovered that the B-C3 moiety in a 1,4-azaborine can serve uniquely as a η(2)-L-type ligand. This functionality is exemplified by two κ(2)-N-η(2)-BC Pt complexes of a boron-pyridyl-substituted monobenzofused-1,4-azaborine. Single-crystal X-ray diffraction analysis of the Pt complexes shows a strong structural contribution from the iminium resonance form of the monobenzofused-1,4-azaborine ligand. We also demonstrate that a palladium(0) complex supported by a 1,4-azaborine-based phosphine ligand can catalyze hydroboration of 1-buten-3-yne with unique selectivity. In view of the importance of arene-metal π-interactions in catalytic applications, this work should open new opportunities for ligand design involving the 1,4-azaborine motif as an arene substitute.
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Affiliation(s)
- Senmiao Xu
- Department of Chemistry, Boston College, Chestnut Hill, MA 02467 (USA)
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42
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Liang AH, Bai FQ, Wang J, Ma JB, Zhang HX. Theoretical Studies on Phosphorescent Materials: The Conjugation-Extended PtII Complexes. Aust J Chem 2014. [DOI: 10.1071/ch14032] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/10/2023]
Abstract
A theoretical study on the PtII complex A based on a dimesitylboron (BMes2)-functionalized [Pt(C^N)(acac)] (C^N = 2-phenyl-pyridyl, acac = acetylaceton) complex, as well as three conjugation-extended analogues of the methylimidazole (C*) ligand BMes2-[Pt(C^C*)(acac)] complexes B–D is performed. Their theoretical geometries, electronic structures, emission properties, and the radiative decay rate constants (kr) were also investigated. The energy differences between the two highest occupied orbitals with dominant Pt d-orbital components (Δddocc) of D both at the ground and excited states are the smallest of all. Compared with B, the charge transfer in D possesses a marked trend towards the extended conjugated group, while C changed inconspicuously. The lowest-lying absorptions and the phosphorescence of them can be described as a mixed metal-to-ligand charge transfer (MLCT)/intra-ligand π→π* charge transfer (ILCT) and 3MLCT/3ILCT, respectively. The variation of charge transfer properties induced by extended conjugation and the radiative decay rate constants (kr) calculated revealed that D is a more efficient blue phosphorescence material with a 497 nm emission transition.
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43
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Abstract
Metal-chelation and internal H bonds have been found to greatly enhance the photoelimination quantum efficiency of B,N-heterocycles by 2 orders of magnitude. Green phosphorescent Pt(II)-functionalized 1,2-azaborines have been achieved via photoelimination. A mechanistic pathway for the PE reaction has been established.
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Affiliation(s)
- Soo-Byung Ko
- Department of Chemistry, Queen's University , Kingston, Ontario K7L 3N6, Canada
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44
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Ko SB, Lu JS, Kang Y, Wang S. Impact of a Picolinate Ancillary Ligand on Phosphorescence and Fluoride Sensing Properties of BMes2-Functionalized Platinum(II) Compounds. Organometallics 2013. [DOI: 10.1021/om301112u] [Citation(s) in RCA: 38] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Affiliation(s)
- Soo-Byung Ko
- Department of Chemistry, Queen’s University, Kingston, Ontario, K7M 3N6, Canada
| | - Jia-Sheng Lu
- Department of Chemistry, Queen’s University, Kingston, Ontario, K7M 3N6, Canada
| | - Youngjin Kang
- Division of Science Education, Kangwon National University, Chuncheon 200-701, Republic
of Korea
| | - Suning Wang
- Department of Chemistry, Queen’s University, Kingston, Ontario, K7M 3N6, Canada
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45
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Blight BA, Ko SB, Lu JS, Smith LF, Wang S. Triarylboryl-functionalized dibenzoylmethane and its phosphorescent platinum(ii) complexes. Dalton Trans 2013; 42:10089-92. [DOI: 10.1039/c3dt51276b] [Citation(s) in RCA: 20] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
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46
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Tronnier A, Risler A, Langer N, Wagenblast G, Münster I, Strassner T. A Phosphorescent C∧C* Cyclometalated Platinum(II) Dibenzothiophene NHC Complex. Organometallics 2012. [DOI: 10.1021/om300740d] [Citation(s) in RCA: 52] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Affiliation(s)
- Alexander Tronnier
- Physikalische Organische Chemie, Technische Universität Dresden, 01069 Dresden, Germany
| | | | | | | | | | - Thomas Strassner
- Physikalische Organische Chemie, Technische Universität Dresden, 01069 Dresden, Germany
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47
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Hudson ZM, Sun C, Helander MG, Chang YL, Lu ZH, Wang S. Highly Efficient Blue Phosphorescence from Triarylboron-Functionalized Platinum(II) Complexes of N-Heterocyclic Carbenes. J Am Chem Soc 2012; 134:13930-3. [DOI: 10.1021/ja3048656] [Citation(s) in RCA: 221] [Impact Index Per Article: 18.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/13/2023]
Affiliation(s)
- Zachary M. Hudson
- Department
of Chemistry, Queen’s University, Kingston, Ontario, K7L 3N6 Canada
| | - Christina Sun
- Department
of Chemistry, Queen’s University, Kingston, Ontario, K7L 3N6 Canada
| | - Michael G. Helander
- Department of Materials Science and Engineering, University of Toronto, Ontario, M5S 3E4 Canada
| | - Yi-Lu Chang
- Department of Materials Science and Engineering, University of Toronto, Ontario, M5S 3E4 Canada
| | - Zheng-Hong Lu
- Department of Materials Science and Engineering, University of Toronto, Ontario, M5S 3E4 Canada
| | - Suning Wang
- Department
of Chemistry, Queen’s University, Kingston, Ontario, K7L 3N6 Canada
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48
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Rao YL, Schoenmakers D, Chang YL, Lu JS, Lu ZH, Kang Y, Wang S. Bluish-Green BMes2-Functionalized PtII Complexes for High Efficiency PhOLEDs: Impact of the BMes2 Location on Emission Color. Chemistry 2012; 18:11306-16. [DOI: 10.1002/chem.201201255] [Citation(s) in RCA: 67] [Impact Index Per Article: 5.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/13/2012] [Indexed: 11/08/2022]
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49
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Spencer M, Santoro A, Freeman GR, Díez Á, Murray PR, Torroba J, Whitwood AC, Yellowlees LJ, Williams JAG, Bruce DW. Phosphorescent, liquid-crystalline complexes of platinum(ii): influence of the β-diketonate co-ligand on mesomorphism and emission properties. Dalton Trans 2012; 41:14244-56. [DOI: 10.1039/c2dt31525d] [Citation(s) in RCA: 52] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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