A series of polyoxometalate-based hybrid complexes constructed by a tripodal ligand containing mixed N/O donors
作者:Jun Ying、Liang Jin、Hai-Yan Yu、Ai-Xiang Tian、Xiu-Li Wang
DOI:10.1039/d1ce01195b
日期:——
[CdII(L1)2(HPMo12O40)]·2H2O (1), MII2(H2O)4(L1)2[H2(β-Mo8O26)]}n·xH2O (n = 1, x = 1, M = Co (2), Cu (3), Fe (4); n = 0.5, x = 0, M = Ni (5), Zn (6)). The organic component 3,5-bis-(2,5-dihydro-imidazole-1-yl)benzoic acid (L1) is a tripodal ligand containing two imidazole and one carboxylic acid group. The N donors in the imidazole groups and the O donors in the carboxylic acid group of L1 can coordinate
通过改变过渡金属(TMs)和聚阴离子,水热法合成了六种多金属氧酸盐(POM)基配合物1-6,即[Cd II (L 1 ) 2 (HPMo 12 O 40 )]·2H 2 O ( 1 ), M II 2 (H 2 O) 4 (L 1 ) 2 [H 2 (β-Mo 8 O 26 )]} n · x H 2 O ( n = 1, x = 1, M = Co ( 2 ), 铜 (3 )、Fe( 4 );n = 0.5, x = 0, M = Ni ( 5 ), Zn ( 6 ))。有机组分3,5-双-(2,5-二氢-咪唑-1-基)苯甲酸(L 1 )是含有两个咪唑和一个羧酸基团的三足配体。L 1的咪唑基团中的N供体和羧酸基团中的O供体可以与不同的过渡金属原子配位以构建基于POM的配合物。在复合物1 中,Keggin 阴离子通过 [Cd(L 1 ) 2 ] 2+亚基连接以构建链。配合物2-6与 [β-Mo8