Four Co(II) coordination polymers based on 4,4′-bis(benzimidazol-1-ylmethyl)biphenyl and aromatic carboxylic acids co-ligands: Synthesis, structures, and photocatalytic properties
作者:Ju-Meng Hu、Rui Guo、Yong-Guang Liu、Guang-Hua Cui
DOI:10.1016/j.ica.2016.06.042
日期:2016.8
Abstract Four Co(II) coordination polymers, [Co(L) 2 (1,4-bdc)] n ( 1 ), [Co 0.5 (HL)(Hbtc)] n ( 2 ), [Co(L)(1,3-bdc)(H 2 O)]·1.5H 2 O} n ( 3 ) and [Co 2 (L) 2 (nip) 2 ]·2H 2 O} n ( 4 ) (L = 4,4′-bis(benzimidazol-1-ylmethyl)biphenyl, 1,4-H 2 bdc = 1,4-benzenedicarboxylic acid, H 3 btc = 1,3,5-benzenetricarboxylic acid, 1,3-H 2 bdc = 1,3-benzenedicarboxylic acid, H 2 nip = 5-nitroisophthalic acid) have
摘要四种Co(II)配位聚合物,[Co(L)2(1,4-bdc)] n(1),[Co 0.5(HL)(Hbtc)] n(2),[Co(L)( 1,3-bdc)(H 2 O)]·1.5H 2 O} n(3)和[Co 2(L)2(nip)2]·2H 2 O} n(4)(L = 4, 4'-双(苯并咪唑-1-基甲基)联苯,1,4-H 2 bdc = 1,4-苯二甲酸,H 3 btc = 1,3,5-苯三甲酸,1,3-H 2 bdc = 1在水热反应条件下已经合成了(3-苯二甲酸,H 2 nip = 5-硝基间苯二甲酸)。配合物1和2均具有链结构,而2通过经典的氢键相互作用最终扩展为2D超分子框架。复数3具有(4,4)网格,具有4 4 .6 2}拓扑。复合体4显示2D(6,3)层,该层进一步扩展为具有不寻常的Binodal的3D超分子网络(3,4)通过O–H⋯O氢键相互作用连接sqc1425