Photophysical Properties of Chlorotriethylphosphinegold(I)

被引：6

作者：

Kang, Jun-Gill ^{[1
]}

Jeong, Yong-Kwang ^{[1
]}

Oh, Sung-Il ^{[1
]}

Kim, Hyun-Jun ^{[1
]}

Park, Changmoon ^{[1
]}

Tiekink, Edward R. R. ^{[2
]}

机构：

[1] Chungnam Natl Univ, Dept Chem, Taejon 305764, South Korea

[2] Univ Malaya, Dept Chem, Kuala Lumpur 50603, Malaysia

来源：

BULLETIN OF THE KOREAN CHEMICAL SOCIETY | 2010年 / 31卷 / 08期

基金：

新加坡国家研究基金会;

关键词：

Chlorotriethylphosphinegold(I); Optical properties; Aurophilic interactions; Au-centered transitions; Charge transfer; LUMINESCENT GOLD(I); ION PROBES; COMPLEXES; CHEMISTRY; DESIGN; ODMR;

D O I：

10.5012/bkcs.2010.31.8.2151

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

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 [Et3PAuCl](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.

引用

页码：2151 / 2157

页数：7

共 33 条

[1] Structures and properties of gold(I) complexes of interest in biochemical applications [J].