Cadmium(II) Complexes with Mixed cis- Epoxysuccinate and 2,2-Bipyridyl-Like Ligands: Syntheses, Crystal Structures, and Luminescent Properties

被引:3
|
作者
Liu, Chun-Sen [1 ]
Wang, Cong [1 ]
Hu, Min [1 ]
Fang, Shao-Ming [1 ]
机构
[1] Zhengzhou Univ Light Ind, Henan Prov Key Lab Surface & Interface Sci, Zhengzhou 450002, Henan, Peoples R China
来源
ZEITSCHRIFT FUR ANORGANISCHE UND ALLGEMEINE CHEMIE | 2011年 / 637卷 / 06期
基金
中国国家自然科学基金;
关键词
Cadmium; cis-Epoxysuccinate ligand; 2,2 '-Bipyridyl-like molecules; Crystal structures; Luminescence; METAL-ORGANIC FRAMEWORKS; COORDINATION POLYMERS; MOLECULAR TECTONICS; DESIGN; ACID; MOFS; ARCHITECTURES; EMISSION; INFINITE; METHANE;
D O I
10.1002/zaac.201000437
中图分类号
O61 [无机化学];
学科分类号
070301 ; 081704 ;
摘要
Two new CdII complexes, [Cd(ces)(phen)](infinity) (1) and {[Cd(ces)(bpy)(H2O)](H2O)}(2) (2), were prepared by slow solvent evaporation methods from mixtures of cis- epoxysuccinic acid and Cd(ClO4)(2)center dot 6H(2)O in the presence of phen or bpy co- ligand (ces = cisepoxysuccinate, phen = 1,10- phenanthroline, and bpy = 2,2'- bipyridine). Single- crystal X- ray diffraction analyses show that complex 1 has a one- dimensional (1D) helical chain that is further assembled into a two- dimensional (2D) sheet, and then an overall three- dimensional (3D) network by the interchain C-H center dot center dot center dot O hydrogen bonds. Complex 2 features a dinuclear structure, which is further interlinked into a 3D supramolecular network by the co- effects of intermolecular C- H center dot center dot center dot O and C-H center dot center dot center dot pi hydrogen bonds as well as p u u u p stacking interactions. The structural differences between 1 and 2 are attributable to the intervention of different 2,2'- bipyridyl- like co- ligands. Moreover, 1 and 2 exhibit intense solid- state luminescence at room temperature, which mainly originates from the intraligand pi-pi* transitions of aromatic co- ligands.
引用
收藏
页码:748 / 754
页数:7
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