Electrochemical, Photophysical, and Anion-Binding Properties of a Luminescent Rhenium(I) Polypyridine Anthraquinone Complex with a Thiourea Receptor
作者:Kenneth Kam-Wing Lo、Jason Shing-Yip Lau、Vivian Wai-Yin Fong、Nianyong Zhu
DOI:10.1021/om034224c
日期:2004.3.1
We report the synthesis, characterization, and electrochemical and photophysical properties of a new luminescent rhenium(I) polypyridine-thiourea-anthraquinone complex, [Re(Me4-phen)(CO)3(Py-An)](CF3SO3) (1), and its anthraquinone-free analogue [Re(Me4-phen)(CO)3(Py-Ph)](CF3SO3) (2) (Me4-phen = 3,4,7,8-tetramethyl-1,10-phenanthroline; Py-An = N-(1-anthraquinonyl)-N‘-(4-pyridinylmethyl)thiourea; Py-Ph
我们报告了新型发光rh(I)聚吡啶-硫脲-蒽醌配合物[Re(Me 4 -phen)(CO)3(Py-An)](CF 3 SO 3)的合成,表征以及电化学和光物理性质)(1)及其无蒽醌类似物[Re(Me 4 -phen)(CO)3(Py-Ph)](CF 3 SO 3)(2)(Me 4 -phen = 3,4,7, 8-四甲基-1,10-菲咯啉; Py-An = N-(1-蒽醌基)-N '-(4-吡啶基甲基)硫脲; Py-Ph = N-(1-苯基)-N'-(4-吡啶基甲基)硫脲))。配合物2的晶体结构已经通过X射线晶体学研究。辐照后,配合物1和2在298 K的液体溶液和77 K的酒精玻璃中均显示出强烈且长寿命的绿色发光。发射被分配为三重态金属到配体的电荷转移3 MLCT的激发态(dπ(Re)→π*(Me 4 -phen))字符。在低温玻璃中,复合物1和2均观察到双指数衰减,并且寿命更长和寿命较短的组分被分配为3