Photophysical Properties of Chlorotriethylphosphinegold(I)

Bulletin of the Korean chemical society

Hyun Jun Kim¹  Edward R R Tiekink¹  Changmoon Park¹  Sung Il Oh¹  Jun Gill Kang¹  Yong Kwang Jeong¹ 

关键词: Chlorotriethylphosphinegold(I);    Optical properties;    Aurophilic interactions;    Au-centered transitions;    Charge transfer;   

DOI  :  

学科分类：化学（综合）

来源: Korean Chemical Society

【 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.

【 授权许可】

Unknown