Synthesis of Cyclometalated Platinum Complexes Containing Triarylamino Group and Their Photophysical and Electrochemical Properties

Chem. J. Chinese Universities

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Synthesis of Cyclometalated Platinum Complexes Containing Triarylamino Group and Their Photophysical and Electrochemical Properties

LIU Jian, LIU Yu, LUO Cui-Ping, LIU En-Hui, YANG Yu-Ping, GAN Quan, ZHU Mei-Xiang, ZHU Wei-Guo

College of Chemistry, Xiangtan University, Xiangtan 411105, China

Received:2005-09-29 Revised:1900-01-01 Online:2006-10-10 Published:2006-10-10
Contact: ZHU Wei-Guo

Abstract

Abstract: Two cyclomatetaled platinum (Pt) complexes containing triarylamine moiety were synthesized by Ullmann and cyclometalated reactions, which are [N,N-(4-tert-butylphenyl)-4-(2'-pyridyl)aniline-C3, N1] (diphenoxylmethane) Pt(Ⅱ) [(BuPhNPPy)Pt(DBM)] and [N,N-diphenyl-4-(2'-pyridyl)aniline-C3, N1] (diphenoxylmethane) Pt(Ⅱ) [(PhNPPy)Pt(DBM)]. The influence of reaction condition and molecular structures on the synthesis was investigated. The cyclometalated yield was 87.0%. The spectral and electrochemical properties of these Pt complexes were also studied. The results showed that both complexes had intense UV-Vis absorption and photoluminescence properties. The oxidation and reduction potentials of (PhNPPy)Pt(DBM) and (BuPhNPPy)Pt(DBM) are 0.80, -1.63 V and 0.93, -1.45 V respectively. The maximum UV-Vis absorption and photoluminescence wavelengths of (PhNPPy)Pt(DBM) are 346 and 537 nm respectively and these of (BuPhNPPy)Pt(DBM) have a red-shifted wavelength of 7—13 nm.

Key words: Pt complex, Synthesis, UV-Vis spectrum, Photoluminescence, Electrochemical property

CLC Number:

O627.8

TrendMD:

LIU Jian, LIU Yu, LUO Cui-Ping, LIU En-Hui, YANG Yu-Ping, GAN Quan, ZHU Mei-Xiang, ZHU Wei-Guo. Synthesis of Cyclometalated Platinum Complexes Containing Triarylamino Group and Their Photophysical and Electrochemical Properties[J]. Chem. J. Chinese Universities, doi: .

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Synthesis of Cyclometalated Platinum Complexes Containing Triarylamino Group and Their Photophysical and Electrochemical Properties

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