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http://dx.doi.org/10.5012/bkcs.2010.31.8.2151

Photophysical Properties of Chlorotriethylphosphinegold(I)  

Kang, Jun-Gill (Department of Chemistry, Chungnam National University)
Jeong, Yong-Kwang (Department of Chemistry, Chungnam National University)
Oh, Sung-Il (Department of Chemistry, Chungnam National University)
Kim, Hyun-Jun (Department of Chemistry, Chungnam National University)
Park, Chang-Moon (Department of Chemistry, Chungnam National University)
Tiekink, Edward R.R. (Department of Chemistry, University of Malaya)
Publication Information
Bulletin of the Korean Chemical Society / v.31, no.8, 2010 , pp. 2151-2157 More about this Journal
Abstract
Spectroscopic and quantum mechanical studies of the Et3PAuCl complex were performed to characterize the effect of aurophilicity on the optical properties. When excited with UV light at low temperature, the crystalline complex produced a deep luminescence in both the blue (high-energy) and red (low-energy) regions of the spectrum. The intensity of the low-energy luminescence was markedly reduced in the powdered state and quenched in the solution state. Time-dependent density functional theory (TD-DFT) calculations on electronic structures of both the ground and excited states of aggregates $[Et_3PAuCl]_n$ (n = 1 - 3) indicated that the low-energy luminescence was attributable to Au-centered transitions, which are significantly affected by aurophilic interactions. By contrast, the high-energy luminescence appeared to be independent of the state of the complex and was strongly associated with the charge transfer from Cl to Au.
Keywords
Chlorotriethylphosphinegold(I); Optical properties; Aurophilic interactions; Au-centered transitions; Charge transfer;
Citations & Related Records
Times Cited By KSCI : 3  (Citation Analysis)
Times Cited By Web Of Science : 1  (Related Records In Web of Science)
Times Cited By SCOPUS : 1
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