Secondary ligand-directed assembly of Co(II) coordination polymers based on a pyridine carboxylate ligand
作者:Ke-Li Cao、Yi-Ping Zhang、Yi-Ni Cai、Xiao-Wei Xu、Yun-Long Feng
DOI:10.1016/j.jssc.2014.03.025
日期:2014.7
To investigate the influence of hydrogen bonds and secondary ligands on the structures and properties of the resulting frameworks, five new Co(II) compounds have been synthesized by the reactions of Co(II) salts and 3,5-bis(pyridin-4-ylmethoxy)benzoic acid (HL) with four rationally selected dicarboxylic acid ligands. Without secondary ligand, we got one compound [CoL2(H2O)2]n·2nH2O (1), which possesses
为了研究氢键和二级配体对所得骨架的结构和性能的影响,通过Co(II)盐与3,5-bis(pyridin-4-)的反应合成了五种新的Co(II)化合物。带有四个合理选择的二羧酸配体的甲氧基)苯甲酸(HL)。没有二级配体,我们得到了一种化合物[CoL 2(H 2 O)2 ] n · 2 n H 2 O(1),它具有一维链结构。在辅助配体存在下,即1,3-金刚烷二羧酸(H 2 adbc),对苯二甲酸(H 2 tpa),噻吩-2,5-二羧酸(H 2tdc)和1,4-苯二硫代乙酸(H 2 bdtc),四个3D结构[Co 2 L 2(adbc)] n · n H 2 O(2),[Co 2 L 2(tpa)] n(3)分别获得[Co 2 L 2(tdc)] n(4),[Co 2 L 2(bdtc)(H 2 O)] n(5)。可以从1 – 5的体系结构中观察到氢键和二级配体都对空间结缔方式有很大影响,导致