Structural assembly from 1D to 3D motivated by the linear co-ligands, and the magnetic and photocatalytic properties of five Ni<sup>II</sup> coordination polymers with 5-(4′-carboxylphenyl)nicotinic acid
作者:Zhixiang Wang、Yixia Ren、Jia Cao、Long Tang、Meili Zhang、Shanhong Zhou
DOI:10.1039/c8nj02921k
日期:——
Five novel nickel(II) coordination polymers, namely, [Ni(cpna)(4,4′-bipy)(H2O)2] (1), [Ni(cpna)(1,4-bbi)(H2O)]·H2O (2), [Ni4(cpna)4(H2O)8] (3), [Ni2(cpna)2(4,4′-bbpy)(H2O)] (4), and [Ni (cpna)(1,4-bibz)0.5(H2O)]·H2O (5) (H2cpna = 5-(4′-carboxylphenyl)nicotinic acid; 4,4′-bipy = 4,4′-bipyridine; 1,4-bbi = 1,4-bisbenzimidazole; 4,4′-bbpy = 4,4′-bis(imidazol-1-ylmethyl)biphenyl; 1,4-bibz = 1,4-bis(1-imidazoly)benzene)
五种新颖的镍(II)配位聚合物,即[Ni(cpna)(4,4'-bipy)(H 2 O)2 ](1),[Ni(cpna)(1,4-bbi)(H 2 O)]·H 2 O(2),[Ni 4(cpna)4(H 2 O)8 ](3),[Ni 2(cpna)2(4,4'-bbpy)(H 2 O)] (4)和[Ni(cpna)(1,4-bibz)0.5(H 2 O)]·H 2 O(5)(H 2cpna = 5-(4'-羧基苯基)烟酸; 4,4'-联吡啶= 4,4'-联吡啶; 1,4-bbi = 1,4-双苯并咪唑; 4,4'-bbpy = 4,4'-双(咪唑-1-基甲基)联苯; 1,4-bibz = 1,4-双(1-咪唑基)苯),是在水热条件下基于H 2 cpna和四种不同的线性N-供体共配体合成的。结构分析表明,所有Ni(II)离子都位于略微扭曲的六个协调八面体几何形状中。配合物1-5具有多种结构: