Synthesis and structural characterization of homochiral coordination polymers with imidazole-based monocarboxylate ligands
作者:Elena Borrego、Antonio I. Nicasio、Eleuterio Álvarez、Francisco Montilla、José Manuel Córdoba、Agustín Galindo
DOI:10.1039/c9dt01237k
日期:——
yielded the following coordination polymers: Ag[(S)-LMe]}n, 2a, Ag[(R)-LMe]}n, 2a′, Cu[(S)-LR]2}n (R = Me, 3a; iPr, 3b), Cu[(R)-LMe]}n, 3a′, Zn[(S)-LR]2}n (R = Me, 4a; iPr, 4b; (S)-secBu, 4d) and Zn[(R)-LMe]2}n, 4a′. For the known compounds 3a and 4a, this procedure is a new synthetic route that avoided high temperature reaction conditions. New complexes 2, 3a′, b, and 4a′, b, d were characterised
手性Na [(S)-L R ](R = Me,1a ; i Pr,1b ; CH 2 i Pr,1c和(S)-sec Bu,1d)和Na [(R)-L R ](按照标准程序合成R = Me,1a′)化合物。对新化合物1d和1a'进行了分析和光谱表征。1a和1c在结构上通过单晶X射线衍射法鉴定为同手性2D配位聚合物,Na(H 2O)[(S)-L Me ]} n和Na [(S)-L CH 2 i Pr ]} n分别。两者(小号)1-2烷基,2-(1- ħ -咪唑-1-基)乙酸根阴离子在这些配位聚合物显示空前的配位模式:μ 3 κ 2 ö κ ø '为1A和μ 4 κ 2 ö κ 2 ö '为1C。对映异构体1a',Na(H 2 O)[(R)-L Me]} n,显示出与1a相同的X射线粉末衍射图(XRPD),并具有相似的晶体结构。对[L R ] -阴离子的DFT计算证实了它们作为双位连接基的配位能力。实际上,Na