Synthesis, structure and fluorescence properties of a novel 3D Sr(II) coordination polymer

被引：3
|
作者：
Tan, Yu-Hui [1 ]
Xu, Qing [1 ]
Gu, Zhi-Feng [1 ]
Gao, Ji-Xing [1 ]
Wang, Bin [1 ]
Liu, Yi [1 ]
Yang, Chang-Shan [1 ]
Tang, Yun-Zhi [1 ]
机构：
[1] Jiangxi Univ Sci & Technol, Sch Met & Chem Engn, Ganzhou 341000, Peoples R China
来源：
JOURNAL OF MOLECULAR STRUCTURE | 2016年 / 1119卷
基金：
中国国家自然科学基金;
关键词：
Strontium complex; 2,2 '-bipyridine-5,5 '-dicarboxylic acid; Fluorescence properties; METAL-ORGANIC FRAMEWORKS; 2+3 CYCLOADDITION SYNTHESIS; MAGNETIC-PROPERTIES; ACID; LIGANDS; LUMINESCENCE; ENANTIOMERS; DERIVATIVES; NETWORKS;
D O I：
10.1016/j.molstruc.2016.04.074
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：
Solvothermal reaction of 2,2'-bipyridine-5,5'-dicarboxylic acid (H(2)bpdc) and SrCl2 affords a novel coordination polymer [Sr(Hbpdc)(2)](n) 1. X-ray structure determination shows that I exhibits a novel three-dimensional network. The unique Sr (II) cation sits on a two-fold axis and coordinated by four O-atom donors from four Hbptc(-) ligands and four N-atom donors from two Hbptc(-) ligands in distorted dodecahedral geometry. In 1 each Sr (II) cation connects to six different Hbptc(-) ligands and each Hbptc(-) ligand bridges three different Sr (II) cations which results in the formation of a three-dimensional polymeric structure. Corresponding to the free ligand, the fluorescent emission of complex 1 display remarkable "Einstain" shifts, which may be attributed to the coordination interaction of Sr atoms, thus reduce the rigidity of pyridyl rings. (C) 2016 Elsevier B.V. All rights reserved.
引用
收藏
页码：346 / 350
页数：5
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