Synthesis, structure and characterization of two new metal-organic coordination polymers based on the ligand 5-iodobenzene-1,3-dicarboxylate

被引:10
作者
Zhang, Xu [1 ]
Zhang, Lei [1 ]
Wang, Meng-Jie [1 ]
Zhang, Kou-Lin [1 ]
机构
[1] Yangzhou Univ, Coll Chem & Chem Engn, Key Lab Environm Mat & Environm Engn Jiangsu Prov, Yangzhou 225002, Peoples R China
来源
ACTA CRYSTALLOGRAPHICA SECTION C-STRUCTURAL CHEMISTRY | 2015年 / 71卷
关键词
5-iodobenzene-1,3-dicarboxylic acid; synthesis; coordination polymers; alpha-Po network; metal-organic framework; crystal structure; characterization; fluorescence properties; halogen bonding; FRAMEWORKS; CONSTRUCTION; TOPOLOGIES; FAMILY; SERIES;
D O I
10.1107/S2053229615014655
中图分类号
O6 [化学];
学科分类号
0703 ;
摘要
Two new coordination polymers (CPs) formed from 5-iodobenzene-1,3-dicarboxylic acid (H(2)iip) in the presence of the flexible 1,4-bis(1H-imidazol-1-yl)butane (bimb) auxiliary ligand, namely poly[[mu(2)-1,4-bis(1H-imidazol-1-yl)butane-kappa N-2(3):N-3'](mu(3)-5-iodobenzene-1,3-dicarboxylato-kappa O-4(1),O-1':O-3:O-3')cobalt(II)], [Co(C8H3IO4)(C10H14N4)](n) or [Co(iip)(bimb)](n), (1), and poly[[[mu(2)-1,4-bis(1H-imidazol-1-yl)butane-kappa N-2(3):N-3'](mu(2)-5-iodobenzene-1,3-dicarboxylato-kappa O-2(1):O-3)zinc(II)] trihydrate], {[Zn(C8H3IO4)(C10H14N4)]center dot 3H(2)O}(n) or {[Zn(iip)(bimb)]center dot 3H(2)O}(n), (2), were synthesized and characterized by FT-IR spectroscopy, thermogravimetric analysis (TGA), solid-state UV-Vis spectroscopy, single-crystal X-ray diffraction analysis and powder X-ray diffraction analysis (PXRD). The iip(2-) ligand in (1) adopts the (kappa(1),kappa(1)-mu(2))(kappa(1),kappa(1)-mu(1))-mu(3) coordination mode, linking adjacent secondary building units into a ladder-like chain. These chains are further connected by the flexible bimb ligand in a trans-trans-trans conformation. As a result, a twofold three-dimensional interpenetrating alpha-Po network is formed. Complex (2) exhibits a two-dimensional (4,4) topological network architecture in which the iip(2-) ligand shows the (kappa(1))(kappa(1))-mu(2) coordination mode. The solid-state UV-Vis spectra of (1) and (2) were investigated, together with the fluorescence properties of (2) in the solid state.
引用
收藏
页码:776 / +
页数:18
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