两例基于N,N'-双(丙氨酸)萘四甲酰二亚胺的手性镉(Ⅱ)配位聚合物的制备、结构和光致变色性能研究
Preparation,Structure and Photochromic Properties of Two Chiral Cadmium(Ⅱ)Coordination Polymers Based on N,N'-bis-(alanine)naphthalene Diimide
宋瑶瑶 1王朝阳 1韩娜 1刘雪迎 1王庆伦 2杨春1
作者信息
- 1. 河北工业大学化工学院,天津 300130
- 2. 南开大学化学学院,天津 300071
- 折叠
摘要
合成了两种手性配体N,N'-双(D-丙氨酸)萘四甲酰二亚胺(N,N'-bis-(D-alanine)naphthalene di-imide,D-H2AlaNDI)和 N,N'-双(L-丙氨酸)萘四甲酰二亚胺(N,N'-bis-(L-alanine)naphthalene diimide,L-H2AlaNDI).在溶剂热条件下合成了一维链状的配位聚合物[Cd(D-AlaNDI)(4,4'-bipy)0.5(DMF)2]n(1)和[Cd(L-AlaNDI)(4,4'-bipy)0.5(DMF)2]n(2).配位聚合物1为四方晶系,P4122空间群,一维链通过氢键和范德华力堆积成二维网状结构.配位聚合物1和2为一对对映体,两者均具有光致变色性质,其变色机理是光致电荷转移形成了AlaNDI*自由基阴离子.
Abstract
Two chiral ligands,N,N'-bis-(D-alanine)naphthalene diimide(D-H2AlaNDI)and N,N'-bis-(L-alanine)naphthalene diimide(L-H2AlaNDI),were synthesized.The one-dimensional chain like coordination polymers[Cd(D-AlaNDI)(4,4'-bipy)0.5(DMF)2]n(1)and[Cd(L-AlaNDI)(4,4'-bipy)0.5(DMF)2]n(2)were synthesized under solvothermal conditions.The crystal of coordination polymer 1 is tetragonal with space group P4122 and the one-dimensional chains are stacked into two-dimensional network structure through hydrogen bonds and van der Waals forces.Coordination polymers 1 and 2 are one pair of enantiomers with photochromic properties,the mechanism of which is the formation of AlaNDI*radical anion by photo-induced charge transfer.
关键词
萘四甲酰二亚胺/丙氨酸/镉(Ⅱ)配位聚合物/光致变色/手性Key words
naphthalene diimide/alanine/cadmium(Ⅱ)coordination polymers/photochromism/chirality引用本文复制引用
出版年
2024
NETL
NSTL
万方数据