Synthesis, crystal structure and optical properties of a novel 1D coordination polymer [Zn3(C7H2NO5)2•8(H2O)]n

被引:21
作者
Zou, Jian-Ping [1 ]
Peng, Qiang [1 ]
Zeng, Gui-Sheng [1 ]
Wen, Zhen-Hai [1 ]
Xing, Qiu-Ju [1 ]
Chen, Mei-Hong [1 ]
Guo, Guo-Cong [2 ]
Huang, Jin-Shun [2 ]
机构
[1] Nanchang Hangkong Univ, Sch Environm & Chem Engn, Nanchang 330063, Jiangxi, Peoples R China
[2] Chinese Acad Sci, Fujian Inst Res Struct Matter, State Key Lab Struct Chem, Fuzhou 350002, Fujian, Peoples R China
关键词
Band structure; Coordination polymers; Crystal structure; Optical properties; CHELIDAMIC ACID; PYRIDINE-2,6-DICARBOXYLIC ACID; MAGNETIC-PROPERTIES; COMPLEXES; DESIGN; FRAMEWORKS; SURFACE; MN;
D O I
10.1016/j.molstruc.2009.01.016
中图分类号
O64 [物理化学(理论化学)、化学物理学];
学科分类号
070304 ; 081704 ;
摘要
The reaction of Zn(II) ions and chelidamic acid (2,6-dicarboxy-4-hydroxypyridine) gave a novel 1D coordination polymer, [Zn-3(C7H2NO5)(2)center dot 8(H2O)(n) (1), which are characterized by X-ray single crystal diffraction. The crystal Structure of 1 reveals that Zn(II) centers are linked via chelidamic acid to form one-dimensional chains, further linked by hydrogen bonds to form a 3-D network. The optical properties were investigated in terms of diffuse reflectance and fluorescent spectra, which exhibit strong green luminescence. The electronic band structure along with the density of states (DOS) calculated by the DFT method indicate that compound 1 is a semiconductor and that the origin of the emission band may be mainly ascribed to ligand-to-ligand charge transfer (LLCT) where the electrons are transferred from the O-2p to C-2p states. (C) 2009 Elsevier B.V. All rights reserved.
引用
收藏
页码:323 / 327
页数:5
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