Luminescent properties of carbon-rich starburst gold(I) acetylide complexes. Crystal structure of [TEE][Au(PCy3)]4 ([TEE]H4=tetraethynylethene) |
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| Authors: | Wei Lu Nianyong Zhu Chi-Ming Che |
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| Institution: | Department of Chemistry and HKU-CAS Joint Laborotary on New Materials, The University of Hong Kong, Pokfulam Road, Hong Kong |
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| Abstract: | Two carbon-rich starburst gold(I) acetylide complexes TEE]Au(PCy3)]4 (3, TEE]H4=tetraethynylethene) and TEB]Au(PCy3)]3 (6, TEB]H3=1,3,5-triethynylbenzene) were prepared and their UV–vis absorption, emission and excitation spectra have been recorded. In fluid CH2Cl2 solutions, 3 exhibits prompt 1(ππ*) fluorescence with λ0–0 and λmax at 413 and 428 nm, respectively, while 6 displays 3(ππ*) phosphorescence with λ0–0 and λmax at 446 and 479 nm, respectively. The crystal structure of 3·CH2Cl2 has been determined. |
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| Keywords: | Acetylide Gold Cross-conjugation Phosphorescence Fluorescence |
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