Synthesis, Structure, Photoluminescence and Theoretical Study of (MQ)(CdBr4) with MQ2+ Generated In Situ (MQ2+ = N-Me-4,4′-bipyridinium)

被引：23
作者：
Fang, X. -N. [1 ]
Chen, W. -T. [1 ]
Xu, Y. -P. [1 ]
Luo, Q. -Y. [1 ]
Chen, H. -L. [1 ]
机构：
[1] Jinggangshan Univ, Jiangxi Prov Key Lab Coordinat Chem, Sch Chem & Chem Engn, Jian 343009, Jiangxi, Peoples R China
来源：
JOURNAL OF THE IRANIAN CHEMICAL SOCIETY | 2009年 / 6卷 / 01期
关键词：
Cadmium; Crystal structure; LLCT; MO; Photoluminescence; COORDINATION POLYMER; METAL-COMPLEXES; HYDROTHERMAL SYNTHESIS; METHYL VIOLOGEN; FRAMEWORK; CHEMISTRY; LIGANDS; CADMIUM(II); IRRADIATION; CLUSTERS;
D O I：
10.1007/BF03246522
中图分类号：
O6 [化学];
学科分类号：
0703 ;
摘要：
A new compound (MQ)(CdBr4) (1; MQ(2+) = N-Me-4,4'-bipyridinium), in which the MQ(2+) was generated in situ, has been synthesized via hydrothermal reaction. The title compound features an isolated structure, based on discrete MQ(2+) moieties and tetrahedral cadmium atoms terminally coordinated by four bromine atoms. The MQ(2+) moieties and tetrabromo-cadmium dianions are linked via hydrogen bonds. Photoluminescent investigation reveals that the title compound displays a strong blue-light emission, which is attributed to a ligand-to-ligand charge-transfer (LLCT; from the HOMO of the bromine atoms to the LUMO+1 of the MQ(2+) moieties) mechanism probed by molecular orbital (MO) calculations.
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收藏
页码：213 / 218
页数：6
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