Construction of a series of metal–organic frameworks with a neutral tetradentate ligand and rigid carboxylate co-ligands
作者:Ling Qin、Jin-Song Hu、Ming-Dao Zhang、Yi-Zhi Li、He-Gen Zheng
DOI:10.1039/c2ce26236c
日期:——
tetradentate ligand, different bivalent metal salts and two rigid carboxylate co-ligands gave six metal–organic frameworks (MOFs): [Zn(L)(Hbdc)(bdc)0.5]·1.5H2O (1), [Zn2(L)(bdc)2(H2O)]·2H2O (2), [Cd(L)(bdc)(H2O)]·2H2O (3), [Ni(L)(bdc)(H2O)]·H2O (4), [Co3(L)(btc)2(H2O)4] (5), [Zn3(L)(btc)2(H2O)4] (6) (L = 1,1′-oxybis[3,5-dipyridine]-benzene, H2bdc = 1,4-benzenedicarboxylate, H3btc = 1,3,5-benzenetricarboxylate)
中性四齿配体,不同的二价金属盐和两个刚性羧酸盐共配体的溶剂热反应得到六个金属-有机骨架(MOF):[Zn(L)(Hbdc)(bdc)0.5 ]·1.5H 2 O(1),[Zn 2(L)(bdc)2(H 2 O)]·2H 2 O(2),[Cd(L)(bdc)(H 2 O)]·2H 2 O(3),[Ni (L)(bdc)(H 2 O)]·H 2 O(4),[Co 3(L)(btc)2(H 2 O)4 ](5),[Zn 3(L)(btc)2(H 2 O) 4 ]( 6)(L = 1,1'-氧双[3,5-二吡啶]-苯,H 2 bdc = 1,4-苯二甲酸,H 3 btc = 1,3,5-三羧酸苯酯)。化合物1和2已在一锅反应中共结晶。在化合物1中,L和H 2 bdc配体连接Zn中心以生成二维(2D)片状结构,该结构进一步通过分子间氢键连接以形成3倍互穿的3D fsc -3,4- C 2 / c大批