A New Copper（I） Complex Based on Imidazole and Triphenyl- phosphine Ligands： Synthesis, Structure, Third-Order NLO, and Fluorescence Properties

A new candidate [Cu（PPh3）2Him]Br （1, PPh3 =triphenylphosphine, Him= 1-H-imidazole） for nonlinear optical （NLO） materials has been synthesized and characterized crystallographically. The third-order NLO optical properties were measured by the Z-scan technique with an 8 ns pulsed laser at 532 nm. Comp...

Full description

Saved in:
Bibliographic Details
Published in:中国化学：英文版 2012, Vol.30 (5), p.1069-1074
Main Author: 刘法谦 金燕玲 刘保成 李荣勋 邓月义 李伟华 建方方
Format: Article
Language:English
Subjects:
三苯基膦
三阶非线性光学
合成
咪唑
电子结构
荧光性质
铜（I）
非线性光学性质
Online Access:Get full text
Tags: Add Tag
No Tags, Be the first to tag this record!
Description
Summary:A new candidate [Cu（PPh3）2Him]Br （1, PPh3 =triphenylphosphine, Him= 1-H-imidazole） for nonlinear optical （NLO） materials has been synthesized and characterized crystallographically. The third-order NLO optical properties were measured by the Z-scan technique with an 8 ns pulsed laser at 532 nm. Compound 1 exhibits strong NLO absorptive abilities [a2=（61±5）×10^-12] and effective self-focusing performance [n2=（15±3）×10^-18 m^2·W^-1] in 1.01×10^-4 molodm 3 DMF solution. The compound also exhibits luminescence in DMF solution at room temperature and shows narrow emission with maximum at 382 nm. The electronic structure and photoluminescent process were investigated by means of TD-DFT calculations. The results suggest that the contribution to the frontier orbitals from the Cu-Br σ bond plays a crucial role in its linear optical properties, and the origin of luminescence is attrib- utable to the π＊ → n transitions.
ISSN:1001-604X
1614-7065