Synthesis, structures, luminescent and magnetic properties of four coordination polymers based on biphenyl-2,4′,5-tricarboxylic acid and different N -donor ligands
作者:Xuzhao Liao、Wujuan Sun、Dandan Zhai、Xiaoling Wang、Jiemin Dong、Xuwu Yang
DOI:10.1016/j.inoche.2016.05.010
日期:2016.8
Abstract Four new coordination polymers [Zn(HL)(bibp)]n (1: H3L = biphenyl-2,4′,5-tricarboxylic acid, bibp = 4,4′-bis(imidazolyl)biphenyl), [Co(HL)(bibp)]n (2), [Co(HL)(bib)]n·4nH2O (3: bib = 1,4-bis(1-imidazoly)-benzene), [Co1.5(L)(bib)1.5(H2O)]n·3nH2O (4), have been synthesized under solvo/hydrothermal conditions, and have been fully characterized by single-crystal X-ray diffraction, powder X-ray
摘要 四种新型配位聚合物 [Zn(HL)(bibp)]n (1: H3L = 联苯-2,4',5-三羧酸, bibp = 4,4'-双(咪唑基)联苯), [Co(HL) )(bibp)]n (2), [Co(HL)(bib)]n·4nH2O (3: bib = 1,4-bis(1-imidazoly)-benzo), [Co1.5(L)(bib )1.5(H2O)]n·3nH2O (4),已在溶剂/水热条件下合成,并已通过单晶 X 射线衍射、粉末 X 射线衍射 (PXRD)、红外光谱、元素分析进行充分表征和热重分析 (TGA)。结构分析表明,1 和 2 都显示了 4 重互穿框架。复合体 3 拥有一个 2D (4,4) 网络。复合体 4 展示了一个 3D 框架,点符号为 32·4·67}232·610·72·8}。此外,还详细研究了 1 的光致发光特性和 2-4 的磁特性。