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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

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【作者】 宋瑶瑶王朝阳韩娜刘雪迎王庆伦杨春

【Author】 Song Yaoyao;Wang Zhaoyang;Han Na;Liu Xueying;Wang Qinglun;Yang Chun;School of Chemical Engineering and Technology, Hebei University of Technology;College of Chemistry, Nankai University;

【通讯作者】 杨春;

【机构】 河北工业大学化工学院南开大学化学学院

【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 diimide,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-H2Ala NDI) and N,N’-bis-(L-alanine)naphthalene diimide (L-H2AlaNDI),were synthesized.The one-dimensional chain like coordination polymers[Cd(D-Ala NDI)(4,4’-bipy)0.5(DMF)2]n(1) and[Cd(L-Ala NDI)(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.

【基金】 国家自然科学基金(21771111,21101096,21371104);河北省引进留学人员资助项目(C20200317)
  • 【文献出处】 南开大学学报(自然科学版) ,Journal of Nankai University(Natural Science) , 编辑部邮箱 ,2024年04期
  • 【分类号】O641.4
  • 【下载频次】34
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