两对氨基酸配合物对映异构体的晶体结构及手性传递机制研究  

Crystal Structure and Chirality Transfer Mechanism of Two Pairs of Enantiomeric Complexes Based on Amino Acid Derived Ligands

作　　者：李新发[1] 

机构地区：[1]遵义师范学院化学化工学院,贵州遵义563002

出　　处：《遵义师范学院学报》2013年第2期79-82,共4页Journal of Zunyi Normal University

基　　金：遵义师范学院博士科研启动基金资助项目

摘　　要：以一对互为对映体的天然-氨基酸衍生物[N-(2-吡啶亚甲基)-苯丙氨酸,简写:L-Hpmpa和D-Hpmpa]为配体,与过渡金属离子Mn2+和Fe2+在水热条件下自组装得到两对互为对映体的中性单核配合物,即[Mn(L-pmpa)2.2H2O](1L),[Mn(D-pmpa)2.2H2O](1D),[Fe(L-pmpa)2.2H2O](2L)和[Fe(L-pmpa)2.2H2O](2D)。通过X-射线单晶衍射结构分析,揭示了该自组装结晶过程中的手性传递机制。A pair of enantiomeric amino acid derivatives [N-（2-pyridylmethyl）-phenylalanine, L-Hpmpa and D-Hpmpa for short] were employed as ligands to synthesize chiral complexes. Self-assembly of L-Hpmpa and D-Hpmpa with transition metal ions Mn2＋ and Fe2＋ trader hydrothermal conditions resulted in the formation of two pairs of enantiomeric complexes formulated as [Mn（L-pmpa）2·2H2O] （1L）, [Mn（D-pmpa）2 · 2H2O] （1D）, [Fe（L-pmpa）2· 2H20] （2L） and [Fe（L-pmpa）2·2H2O] （2D）. The mechanism ofchirality transfer in the self-assembly and crystallization process was revealled by single-crystal X-ray diffraction analyses.

关 键 词：晶体结构 氨基酸配体 手性传递 

分 类 号：O629.7[理学—有机化学]