一个基于5-(2-吡啶基)-3,3′-联(1H-1,2,4-三氮唑)和均四苯甲酸的锌(II)超分子配合物的合成、晶体结构与荧光性质(英文)

在单核化合物Zn(C9H7N7)(C10H4O8)(H2O)3]·3H2O中,Zn(II)金属中心离子分别和4个氧和2个氮原子配位,其中4个氧原子来自于一个去质子的均四苯甲酸(H2BTCA)和3个配位水分子,氮原子来自5-(2-吡啶基)-3,3'-联(1H-1,2,4-三氮唑)(H2pbt)配体.在这个结构中,相邻的单核单元之间通过分子内和分子间的O-H···O和NH···O氢键作用连接成二维超分子结构,且三唑环与苯环之间以及相邻吡啶环之间存在芳香堆积作用.此外,还研究了标题配合物的固态荧光性质.

Synthesis,crystal structure,and fluorescence of a Zn（ II ） supramolecular complex with 5-（ pyridin-2-yl ）-3, 3＇-bi（ 1H-l, 2, 4- triazole ） and benzene-l, 2, 4, 5-tetracarboxylic acid

In the mononuelear compound Zn（CgH7N7）（C10H408） （H20）3]· 3H20, the central Znn ion is coordinated by four oxygen donors from one dihydrogen benzene-l, 2, 4, 5-tetraearboxylate （H2BTCA2-） plus three water molecules, and two nitrogen atoms from one 5-（pyridin-2-yl）-3, 3＇-bi（1H-1, 2, 4-triazole）ligand（H2pbt）. In this structure, multiple intramolecular and intermolecular O-H＇＂O and N-H……O hydrogen bonds extend the mononuclear patterns to form a two-dimensional supramoleeular arrangement. Furthermore, aromatic stacking interactions between the triazolyl and benzene rings as well as between the adjacent pyridyl groups are found. In addition, the solid-state photoluminescent property of the title complex is researched in the paper.