Polycarboxylate anions effect on the structures of a series of transition metal-based coordination polymers: Syntheses, crystal structures and bioactivities
作者:Bing-Jun Zhang、Cui-Juan Wang、Guang-Mei Qiu、Shuai Huang、Xian-Li Zhou、Jie Weng、Yao-Yu Wang
DOI:10.1016/j.ica.2012.11.018
日期:2013.3
spectra, and X-ray diffraction, namely [Zn(bbi) 3 (NO 3 )]Br·2H 2 O} n ( 1 ), [Zn(oxa)(bbi)] n ( 2 ), [Mn(fma) 2 (bbi) 2 (H 2 O) 2 ] n ( 3 ), [Cd 2 (bpdc) 2 (bbi) 2 ] n ( 4 ) and [Co 8 (cit) 4 (bbi) 6 (H 2 O) 10 ]·7H 2 O} n ( 5 ). Compounds 1 – 5 display various coordination motifs due to different conformations of the bbi ligand, at the same time, owing to diverse coordination modes of the polycarboxylate
五种新型的基于过渡金属(锌,镉,锰和钴)的配位聚合物1-5,具有柔性棒状N,N'-供体配体(bbi = 1,1'-(1,4-丁二基)双(咪唑) )和四个O-给体多羧酸根阴离子(H 2 oxa =草酸; H 2 fma =富马酸; H 2 bpdc = 2,2'-联苯二甲酸; H 4 cit =柠檬酸)已成功合成并通过元素表征分析,红外光谱和X射线衍射,即[Zn(bbi)3(NO 3)] Br·2H 2 O} n(1),[Zn(oxa)(bbi)] n(2),[ Mn(fma)2(bbi)2(H 2 O)2] n(3),[Cd 2(bpdc)2(bbi)2] n(4)和[Co 8(cit)4(bbi)6 (H 2 O)10]·7H 2 O} n(5)。由于bbi配体的不同构型,化合物1-5同时显示出多种配位基序,这归因于多羧酸盐配体的不同配位方式。聚羧酸盐配体的作用在扩展网络的构建中起着