Luminescent silver(I) cluster. Synthesis, spectroscopic properties and X-ray crystal structure of [Ag-3(C CPh)(2)(dppm)(3)]Cl center dot 4Et(2)O center dot H2O {dppm=bis(diphenylphosphino)methane}

被引：37
|
作者：
Wang, CF
Peng, SM
Chan, CK
Che, CM
机构：
[1] NATL TAIWAN UNIV,DEPT CHEM,TAIPEI 10764,TAIWAN
[2] UNIV HONG KONG,DEPT CHEM,HONG KONG,HONG KONG
来源：
POLYHEDRON | 1996年 / 15卷 / 11期
关键词：
D O I：
10.1016/0277-5387(95)00425-4
中图分类号：
O61 [无机化学];
学科分类号：
070301 ; 081704 ;
摘要：
The [Ag-3(mu(3)-eta(2)-C=CPh)(2)(dppm)(3)](+) complex {dppm = bis(diphenylphosphino)methane} was prepared by reacting [(RC=C)Ag](infinity), with dppm in CH2Cl2. The X-ray crystal structure of [Ag-3(mu(3)-eta(2)-C=CPh)(2)(dppm)(3)]Cl . 4Et(2)O . H2O has been determined. The complex hasan isosceles triangular array of Ag atoms and with two asymmetric phenylacetylide caps. The intramolecular Ag(I) ... Ag(I) separations are 2.866(2) and 2.983(1) Angstrom. Extended-Huckel molecular-orbital calculation reveals that the HOMO comprises prises of contributions from Ag(I) and phenylacetylide whereas the LUMO is largely the pi* of phenylacetylide. The complex shows a solid-state emission at 555 nm with a lifetime of 0.4 mu s at room temperature.
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页码：1853 / 1858
页数：6
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