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Adachi Y, Terao S, Kanematsu Y, Ohshita J. Phosphorescence Properties of Boron/Bismuth Hybrid Conjugated Materials. Chem Asian J 2024; 19:e202301142. [PMID: 38426601 DOI: 10.1002/asia.202301142] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/27/2023] [Revised: 02/28/2024] [Accepted: 03/01/2024] [Indexed: 03/02/2024]
Abstract
By introducing main-group elements such as boron and bismuth to π-conjugated systems, it is possible to modify the optical properties of π-conjugated materials through orbital interactions between the orbital on the elements and π/π*-orbitals, and the heavy atom effect. Moreover, bismuth, which is the heaviest stable element, induces a significant heavy atom effect, making organobismuth compounds promising for applications as phosphorescent materials. In this study, we synthesized new room-temperature phosphorescent materials by incorporating bismuth into thiophene units. The phosphorescence properties of these materials, such as emission lifetime and wavelength, could be further controlled by combining tricoordinate boron with the thienylbismuth structures. The synthesized bismuth- and boron-containing thiophene compounds exhibited phosphorescence at room temperature in both solution and solid states. Furthermore, the introduction of boron raised the energy of the triplet state in the π-conjugated system, resulting in a blue shift of the phosphorescence wavelength. The analysis of photoluminescence properties and TD-DFT calculations revealed that the introduction of bismuth enhances phosphorescence properties, whereas the introduction of boron further promotes intersystem crossing.
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Affiliation(s)
- Yohei Adachi
- Smart Innovation Program, Graduate School of Advanced Science and Engineering, Hiroshima University, Higashihiroshima, Higashi-Hiroshima, 739-8527, Japan
| | - Shota Terao
- Smart Innovation Program, Graduate School of Advanced Science and Engineering, Hiroshima University, Higashihiroshima, Higashi-Hiroshima, 739-8527, Japan
| | - Yusuke Kanematsu
- Smart Innovation Program, Graduate School of Advanced Science and Engineering, Hiroshima University, Higashihiroshima, Higashi-Hiroshima, 739-8527, Japan
| | - Joji Ohshita
- Smart Innovation Program, Graduate School of Advanced Science and Engineering, Hiroshima University, Higashihiroshima, Higashi-Hiroshima, 739-8527, Japan
- Division of Materials Model-Based Research, Digital Monozukuri (Manufacturing) Education and Research Center, Hiroshima University, Higashi-Hiroshima, Hiroshima, 739-8527, Japan
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2
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Gundogan AS, Jagadesan P, Schanze KS. Photophysics of Oligothiophenes End‐Capped with Platinum(II) Auxochromes. CHEMPHOTOCHEM 2020. [DOI: 10.1002/cptc.202000123] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Affiliation(s)
- Ali S. Gundogan
- Department of Chemistry University of Texas at San Antonio San Antonio 78249, TX United States
| | - Pradeepkumar Jagadesan
- Department of Chemistry University of Texas at San Antonio San Antonio 78249, TX United States
| | - Kirk S. Schanze
- Department of Chemistry University of Texas at San Antonio San Antonio 78249, TX United States
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3
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Nishizawa I, Ajito H, Gonmori Y, Katoh R, Ichikawa T, Nemoto N. Synthesis and characterization of poly(tetramethylsilarylenesiloxane) derivatives with oligothiophene based moiety. POLYMER 2019. [DOI: 10.1016/j.polymer.2019.01.069] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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4
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Sanji T, Fuchigami A, Tanaka M. Synthesis and Photophysical Properties of Phenyleneethynylenes Containing a Combination of Two Main Group Element Moieties of B, Si, or P on the Side Chain. Organometallics 2018. [DOI: 10.1021/acs.organomet.7b00768] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/02/2023]
Affiliation(s)
- Takanobu Sanji
- Chemical Resources Laboratory, Tokyo Institute of Technology, 4259 Nagatsuta, Midori-ku, Yokohama 226-8503, Japan
| | - Akemi Fuchigami
- Chemical Resources Laboratory, Tokyo Institute of Technology, 4259 Nagatsuta, Midori-ku, Yokohama 226-8503, Japan
| | - Masato Tanaka
- Chemical Resources Laboratory, Tokyo Institute of Technology, 4259 Nagatsuta, Midori-ku, Yokohama 226-8503, Japan
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5
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Freeman JL, French DN, Zhao Q, Wang J, Zhang Y, Hamilton TP, Lawson CM, Gray GM. Synthesis, Linear, and Nonlinear Optical Properties of Phosphonato‐Substituted Bithiophenes Derived from 2,2‐Dimethyl‐1,3‐propanediol. Eur J Inorg Chem 2017. [DOI: 10.1002/ejic.201700613] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Affiliation(s)
- Jason L. Freeman
- Department of Chemistry University of Alabama‐Birmingham CHEM 201 1720 Second Ave S. 35294‐1240 Birmingham Alabama USA
| | - David N. French
- Department of Chemistry University of Alabama‐Birmingham CHEM 201 1720 Second Ave S. 35294‐1240 Birmingham Alabama USA
| | - Qun Zhao
- Department of Chemistry University of Alabama‐Birmingham CHEM 201 1720 Second Ave S. 35294‐1240 Birmingham Alabama USA
| | - Jianwei Wang
- Department of Physics University of Alabama‐Birmingham CH 310 1720 Second Ave S. 35294‐1170 Birmingham Alabama USA
| | - Yuanli Zhang
- Department of Physics University of Alabama‐Birmingham CH 310 1720 Second Ave S. 35294‐1170 Birmingham Alabama USA
| | - Tracy P. Hamilton
- Department of Chemistry University of Alabama‐Birmingham CHEM 201 1720 Second Ave S. 35294‐1240 Birmingham Alabama USA
| | - Christopher M. Lawson
- Department of Physics University of Alabama‐Birmingham CH 310 1720 Second Ave S. 35294‐1170 Birmingham Alabama USA
| | - Gary M. Gray
- Department of Chemistry University of Alabama‐Birmingham CHEM 201 1720 Second Ave S. 35294‐1240 Birmingham Alabama USA
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6
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Imamoto T, Horiuchi Y, Tamura K, Sugiya M, Masu H. Catalyst-Free and Regioconvergent Substitution Reactions of Bromothiophenes with a BH 3-Substituted Phosphide Anion. Org Lett 2016; 18:4132-5. [DOI: 10.1021/acs.orglett.6b02094] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Tsuneo Imamoto
- Organic R&D Department, Nippon Chemical Industrial Co., Ltd., Kameido, Koto-ku, Tokyo, 136-8515, Japan
- Department
of Chemistry, Graduate School of Science, Chiba University, Yayoi-cho, Inage-ku, Chiba, 263-8522, Japan
| | - Yumi Horiuchi
- Organic R&D Department, Nippon Chemical Industrial Co., Ltd., Kameido, Koto-ku, Tokyo, 136-8515, Japan
| | - Ken Tamura
- Organic R&D Department, Nippon Chemical Industrial Co., Ltd., Kameido, Koto-ku, Tokyo, 136-8515, Japan
| | - Masashi Sugiya
- Organic R&D Department, Nippon Chemical Industrial Co., Ltd., Kameido, Koto-ku, Tokyo, 136-8515, Japan
| | - Hyuma Masu
- Center
for Analytical Instrumentation, Chiba University, Yayoi-cho, Inage-ku, Chiba, 263-8522, Japan
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7
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Gäbler C, Speck JM, Korb M, Schaarschmidt D, Lang H. (Ferrocenylthienyl)phosphines: Synthesis, electrochemistry and their use in Suzuki-Miyaura C,C coupling. J Organomet Chem 2016. [DOI: 10.1016/j.jorganchem.2016.03.027] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
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8
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Koyanagi Y, Kimura Y, Matano Y. Effects of boryl, phosphino, and phosphonio substituents on optical, electrochemical, and photophysical properties of 2,5-dithienylphospholes and 2-phenyl-5-thienylphospholes. Dalton Trans 2016; 45:2190-200. [DOI: 10.1039/c5dt03362d] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
The optical, electrochemical, and photophysical properties of α,α′-linked phosphole–thiophene π-systems bearing boryl, phosphino, or phosphonio groups were studied.
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Affiliation(s)
- Yoshinari Koyanagi
- Department of Fundamental Sciences
- Graduate School of Science and Technology
- Niigata University
- Niigata 950-2181
- Japan
| | - Yoshifumi Kimura
- Department of Molecular Chemistry and Biochemistry
- Faculty of Science and Engineering
- Doshisha University
- Kyotanabe 610-0394
- Japan
| | - Yoshihiro Matano
- Department of Chemistry
- Faculty of Science
- Niigata University
- Niigata 950-2181
- Japan
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9
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Gäbler C, Korb M, Schaarschmidt D, Matthäus Speck J, Hildebrandt A, Lang H. (Ferrocenylthienyl)phosphines for the Suzuki–Miyaura C,C coupling. INORG CHEM COMMUN 2015. [DOI: 10.1016/j.inoche.2015.02.018] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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10
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Meesala Y, Kavala V, Chang HC, Kuo TS, Yao CF, Lee WZ. Synthesis, structures and electrochemical and photophysical properties of anilido-benzoxazole boron difluoride (ABB) complexes. Dalton Trans 2015; 44:1120-9. [DOI: 10.1039/c4dt03052d] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Four-ring-fused anilido-benzoxazole boron difluoride (ABB) dyes were synthesized, and exhibited very bright luminescence in solution (Φf = 0.45–0.96 in CH2Cl2) and in the solid-state (Φf = 0.07–0.37).
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Affiliation(s)
- Yedukondalu Meesala
- Department of Chemistry
- National Taiwan Normal University
- Taipei
- Taiwan (R.O.C.)
| | - Veerababurao Kavala
- Department of Chemistry
- National Taiwan Normal University
- Taipei
- Taiwan (R.O.C.)
| | - Hao-Ching Chang
- Department of Chemistry
- National Taiwan Normal University
- Taipei
- Taiwan (R.O.C.)
| | - Ting-Shen Kuo
- Instrumentation Center
- Department of Chemistry
- National Taiwan Normal University
- Taipei 11677
- Taiwan
| | - Ching-Fa Yao
- Department of Chemistry
- National Taiwan Normal University
- Taipei
- Taiwan (R.O.C.)
| | - Way-Zen Lee
- Department of Chemistry
- National Taiwan Normal University
- Taipei
- Taiwan (R.O.C.)
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11
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Xu B, Zhang J, Fang H, Ma S, Chen Q, Sun H, Im C, Tian W. Aggregation induced enhanced emission of conjugated dendrimers with a large intrinsic two-photon absorption cross-section. Polym Chem 2014. [DOI: 10.1039/c3py00974b] [Citation(s) in RCA: 45] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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12
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Freeman JL, Zhao Q, Zhang Y, Wang J, Lawson CM, Gray GM. Synthesis, linear and nonlinear optical properties of phosphonato-substituted bithiophenes derived from 2,2′-biphenol. Dalton Trans 2013; 42:14281-97. [DOI: 10.1039/c3dt51499d] [Citation(s) in RCA: 17] [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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13
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Zhao Q, Freeman JL, Wang J, Zhang Y, Hamilton TP, Lawson CM, Gray GM. Syntheses, X-ray Crystal Structures, and Optical, Fluorescence, and Nonlinear Optical Characterizations of Diphenylphosphino-Substituted Bithiophenes. Inorg Chem 2012; 51:2016-30. [DOI: 10.1021/ic201309k] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Qun Zhao
- Department
of Chemistry, University of Alabama, 201
Chemistry Building, 901
14th Street South, Birmingham, Alabama 35294-1240, United States
| | - Jason L. Freeman
- Department
of Chemistry, University of Alabama, 201
Chemistry Building, 901
14th Street South, Birmingham, Alabama 35294-1240, United States
| | - Jianwei Wang
- Department of Physics, University of Alabama, CH 310, 1530 Third Avenue South,
Birmingham, Alabama, 35294-1170
| | - Yuanli Zhang
- Department of Physics, University of Alabama, CH 310, 1530 Third Avenue South,
Birmingham, Alabama, 35294-1170
| | - Tracy P. Hamilton
- Department
of Chemistry, University of Alabama, 201
Chemistry Building, 901
14th Street South, Birmingham, Alabama 35294-1240, United States
| | - Christopher M. Lawson
- Department of Physics, University of Alabama, CH 310, 1530 Third Avenue South,
Birmingham, Alabama, 35294-1170
| | - Gary M. Gray
- Department
of Chemistry, University of Alabama, 201
Chemistry Building, 901
14th Street South, Birmingham, Alabama 35294-1240, United States
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14
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Ludwiczak M, Majchrzak M, Marciniec B, Kubicki M. Highly stereoselective synthesis of novel trans-thiophenylene-silylene-vinylene-arylene molecular and macromolecular compounds. J Organomet Chem 2011. [DOI: 10.1016/j.jorganchem.2011.01.020] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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15
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Zhao Q, Wang J, Freeman JL, Murphy-Jolly M, Wright AM, Scardino DJ, Hammer NI, Lawson CM, Gray GM. Syntheses, and Optical, Fluorescence, and Nonlinear Optical Characterization of Phosphine-Substituted Terthiophenes. Inorg Chem 2011; 50:2015-27. [DOI: 10.1021/ic101624y] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
| | | | | | | | - Ashley M. Wright
- Department of Chemistry and Biochemistry, Coulter Hall 113, The University of Mississippi, Oxford, Mississippi 38677, United States
| | - Debra J. Scardino
- Department of Chemistry and Biochemistry, Coulter Hall 113, The University of Mississippi, Oxford, Mississippi 38677, United States
| | - Nathan I. Hammer
- Department of Chemistry and Biochemistry, Coulter Hall 113, The University of Mississippi, Oxford, Mississippi 38677, United States
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16
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Xu B, He J, Dong Y, Chen F, Yu W, Tian W. Aggregation emission properties and self-assembly of conjugated oligocarbazoles. Chem Commun (Camb) 2011; 47:6602-4. [DOI: 10.1039/c1cc11706h] [Citation(s) in RCA: 84] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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17
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Ren Y, Baumgartner T. Ladder-Type π-Conjugated 4-Hetero-1,4-dihydrophosphinines: A Structure-Property Study. Chem Asian J 2010; 5:1918-29. [DOI: 10.1002/asia.201000196] [Citation(s) in RCA: 36] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
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18
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Wang W, Lin T, Wang M, Liu TX, Ren L, Chen D, Huang S. Aggregation Emission Properties of Oligomers Based on Tetraphenylethylene. J Phys Chem B 2010; 114:5983-8. [DOI: 10.1021/jp911311j] [Citation(s) in RCA: 84] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Weizhi Wang
- Key Laboratory of Molecular Engineering of Polymers of Ministry of Education, Department of Macromolecular Science, Fudan University, Shanghai 200433, Institute of Materials Research and Engineering, A*STAR (Agency for Science, Technology and Research), 3 Research Link, Singapore 117602, and Laboratory of Advanced Materials, Fudan University, Shanghai200438
| | - Tingting Lin
- Key Laboratory of Molecular Engineering of Polymers of Ministry of Education, Department of Macromolecular Science, Fudan University, Shanghai 200433, Institute of Materials Research and Engineering, A*STAR (Agency for Science, Technology and Research), 3 Research Link, Singapore 117602, and Laboratory of Advanced Materials, Fudan University, Shanghai200438
| | - Min Wang
- Key Laboratory of Molecular Engineering of Polymers of Ministry of Education, Department of Macromolecular Science, Fudan University, Shanghai 200433, Institute of Materials Research and Engineering, A*STAR (Agency for Science, Technology and Research), 3 Research Link, Singapore 117602, and Laboratory of Advanced Materials, Fudan University, Shanghai200438
| | - Tian-Xi Liu
- Key Laboratory of Molecular Engineering of Polymers of Ministry of Education, Department of Macromolecular Science, Fudan University, Shanghai 200433, Institute of Materials Research and Engineering, A*STAR (Agency for Science, Technology and Research), 3 Research Link, Singapore 117602, and Laboratory of Advanced Materials, Fudan University, Shanghai200438
| | - Lulu Ren
- Key Laboratory of Molecular Engineering of Polymers of Ministry of Education, Department of Macromolecular Science, Fudan University, Shanghai 200433, Institute of Materials Research and Engineering, A*STAR (Agency for Science, Technology and Research), 3 Research Link, Singapore 117602, and Laboratory of Advanced Materials, Fudan University, Shanghai200438
| | - Dan Chen
- Key Laboratory of Molecular Engineering of Polymers of Ministry of Education, Department of Macromolecular Science, Fudan University, Shanghai 200433, Institute of Materials Research and Engineering, A*STAR (Agency for Science, Technology and Research), 3 Research Link, Singapore 117602, and Laboratory of Advanced Materials, Fudan University, Shanghai200438
| | - Shu Huang
- Key Laboratory of Molecular Engineering of Polymers of Ministry of Education, Department of Macromolecular Science, Fudan University, Shanghai 200433, Institute of Materials Research and Engineering, A*STAR (Agency for Science, Technology and Research), 3 Research Link, Singapore 117602, and Laboratory of Advanced Materials, Fudan University, Shanghai200438
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19
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Braddock-Wilking J, Gao LB, Rath NP. Preparation and Photophysical Properties of Phosphino- and Phosphine Oxide-Linked Siloles. Organometallics 2010. [DOI: 10.1021/om900956u] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Janet Braddock-Wilking
- Department of Chemistry and Biochemistry and Center for Nanoscience, University of Missouri—St. Louis, St. Louis, Missouri 63121
| | - Li-Bin Gao
- Department of Chemistry and Biochemistry and Center for Nanoscience, University of Missouri—St. Louis, St. Louis, Missouri 63121
| | - Nigam P. Rath
- Department of Chemistry and Biochemistry and Center for Nanoscience, University of Missouri—St. Louis, St. Louis, Missouri 63121
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20
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Braddock-Wilking J, Gao LB, Rath NP. Luminescent platinum complexes containing phosphorus-linked silole ligands. Dalton Trans 2010; 39:9321-8. [DOI: 10.1039/c0dt00259c] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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21
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Jiang HJ, Wang HY, Zhu R, Wan JH, Liu F, Feng JC, Wei W, Huang W. Two novel oligomers based on fluorene and pyridine: Correlation between the structures and optoelectronic properties. ACTA ACUST UNITED AC 2008. [DOI: 10.1002/pola.22311] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
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22
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Ohshita J, Kurushima Y, Lee KH, Kunai A, Ooyama Y, Harima Y. Synthesis of Bis(diarylphosphino)dithienosilole Derivatives as Novel Photo- and Electroluminescence Materials. Organometallics 2007. [DOI: 10.1021/om700765w] [Citation(s) in RCA: 40] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Joji Ohshita
- Department of Applied Chemistry, Graduate School of Engineering, Hiroshima University, Higashi-Hiroshima 739-8527, Japan
| | - Yasunori Kurushima
- Department of Applied Chemistry, Graduate School of Engineering, Hiroshima University, Higashi-Hiroshima 739-8527, Japan
| | - Kwang-Hoi Lee
- Department of Applied Chemistry, Graduate School of Engineering, Hiroshima University, Higashi-Hiroshima 739-8527, Japan
| | - Atsutaka Kunai
- Department of Applied Chemistry, Graduate School of Engineering, Hiroshima University, Higashi-Hiroshima 739-8527, Japan
| | - Yousuke Ooyama
- Department of Applied Chemistry, Graduate School of Engineering, Hiroshima University, Higashi-Hiroshima 739-8527, Japan
| | - Yutaka Harima
- Department of Applied Chemistry, Graduate School of Engineering, Hiroshima University, Higashi-Hiroshima 739-8527, Japan
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23
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Stott TL, Wolf MO, Patrick BO. Intermolecular interactions and electronic properties in phosphino-(oligothiophene) palladium(II) and platinum(II) complexes. CAN J CHEM 2007. [DOI: 10.1139/v07-033] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
Abstract
A series of Pt(II) and Pd(II) complexes containing diphenylphosphino-substituted oligothiophene ligands ranging from 1 to 3 thiophene rings in length have been prepared. Crystal structures of four of these complexes were determined via single X-ray crystal diffraction and the solid-state packing arrangements found to vary with both the metal and the thiophene-containing ligand. In some cases, π-stacking between thiophene rings are found for the oligothiophene ligands. Solution and solid-state absorption spectra of these complexes are reported.Key words: oligothiophenes, metal complexes, structural properties, electronic spectra.
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Affiliation(s)
- Thomas Baumgartner
- Department of Chemistry, University of Calgary, 2500 University Drive NW, Calgary, Alberta T2N 1N4, Canada.
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25
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Recent Advances in Conjugated Transition Metal-containing Polymers and Materials. J Inorg Organomet Polym Mater 2006. [DOI: 10.1007/s10904-006-9049-4] [Citation(s) in RCA: 81] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/24/2022]
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26
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Myrex RD, Gray GM, VanEngen Spivey AG, Lawson CM. Synthesis and Characterization of Transition Metal Systems Containing Phosphino-Oligothiophene Ligands for Nonlinear Optical Materials. Organometallics 2006. [DOI: 10.1021/om060224b] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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27
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28
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Pina J, Burrows HD, Becker RS, Dias FB, Maçanita AL, Seixas de Melo J. Photophysical Studies of α,ω-Dicyano-oligothiophenes NC(C4H2S)nCN (n = 1−6). J Phys Chem B 2006; 110:6499-505. [PMID: 16570947 DOI: 10.1021/jp055455v] [Citation(s) in RCA: 43] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/25/2022]
Abstract
The photophysics of six oligothiophenes end-capped with cyano groups (CNalphan) was investigated in solution at room and low temperature. The study comprises singlet-singlet and triplet-triplet absorption and emission spectra together with lifetimes and quantum yields for all the radiative and nonradiative processes. From the lifetimes and quantum yields, it was possible to extract the rate constants for all the processes. Singlet oxygen yields were also determined, revealing an efficient sensitization (SDelta approximately 1) of its formation by the triplet state of the CNalphan. The introduction of the cyano groups is found to decrease the energetic separation between the highest occupied molecular orbital and the lowest unoccupied molecular orbital, leading to a red shift of the absorption and the emission when compared with the unsubstituted counterparts, the alpha-oligothiophenes. Phosphorescence is only observed for the first member of the series, CNalpha1.
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Affiliation(s)
- J Pina
- Departamento de Química, Universidade de Coimbra, 3004-535 Coimbra, Portugal
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29
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Jiang HJ, Wang HY, Feng JC, Wang CM, Fan QL, Wei W, Huang W. Novel oligomers based on fluorene and 2,4-difluorobenzene: Correlation between the structures and optical properties. ACTA ACUST UNITED AC 2006. [DOI: 10.1002/pola.21530] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
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30
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Stott TL, Wolf MO, Patrick BO. Structural and Electronic Properties of Phosphino(oligothiophene) Gold(I) Complexes. Inorg Chem 2005; 44:620-7. [PMID: 15679393 DOI: 10.1021/ic0493200] [Citation(s) in RCA: 34] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
A series of gold(I) complexes containing phosphino(oligothiophene) ligands of varying conjugation length has been prepared. Solid state crystal structures of (PT3)AuCl (PT3 = 5-diphenylphosphino-2,2':5',2' '-terthiophene) and AuCl(PTP)AuCl (PTP = 2,5-diphenylphosphinothiophene) have been obtained. The complex AuCl(PTP)AuCl crystallizes as a dimer with two intermolecular Au-Au contacts. Variable temperature NMR spectroscopy is used to demonstrate the presence of aurophilic interactions in solution for AuI(PTP)AuI. Dual emission is observed for AuCl(PTP)AuCl in solution and is attributed to emission from both monomer and dimer. In the solid state, dimer emission is dominant. The iodo analogue, AuI(PTP)AuI, shows only low energy dimer emission in both solution and the solid state. Compounds in which the ligands contain longer bridges (either bithienyl or terthienyl) show absorption and emission bands due to the pi-pi* transition only, both in solution and the solid state.
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Affiliation(s)
- Tracey L Stott
- Department of Chemistry, University of British Columbia, Vancouver, British Columbia, V6T 1Z1, Canada
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