期刊信息

  • 刊名： 河北师范大学学报（自然科学版）Journal of Hebei Normal University (Natural Science)
  • 主办： 河北师范大学
  • ISSN： 1000-5854
  • CN： 13-1061/N
  • 中国科技核心期刊
  • 中国期刊方阵入选期刊
  • 中国高校优秀科技期刊
  • 华北优秀期刊
  • 河北省优秀科技期刊

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基于D(-)/L(+)-对羟基苯甘氨酸配体的镉配合物的合成、结构及荧光识别性能

  • (河北师范大学 化学与材料科学学院，河北 石家庄 050024)
  • DOI： 10.13763/j.cnki.jhebnu.nse.202203011

Synthesis, Structure and Fluorescence Recognition Performance of Cadmium Coordination Compounds Based on D(-)/L(+)-4-hydroxyphenylglycine Ligand

摘要/Abstract

摘要：

以D(-)/L(+)-对羟基苯甘氨酸(D/LHhpg)为主配体合成了2个手性配合物{ [Cd(Dhpg)(bpp)(H2O)]·(NO3)·(H2O)}n(1)和{ [Cd(Lhpg)(bpp)(H2O)]·(NO3)·(H2O)}n (2) (bpp = 1, 3双(4吡啶基)丙烷)，通过单晶X射线衍射、元素分析、红外光谱、粉末X射线衍射、热重分析及圆二色谱对其结构进行了分析表征.测试结果表明，配合物1和2为一对对映异构体，属于单斜晶系，P21手性空间群，分别为1D左手与右手螺旋链结构，并均在氢键作用下拓展为3D超分子结构.荧光光谱研究表明，配合物1和2具有良好的荧光性质，对水溶液中的 Cu2+/Fe3+具有荧光识别能力，可用于水中Cu2+/Fe3+ 离子的检测.

Abstract：

Two chiral coordination compounds based on D(-)/L(+)-4-hydroxyp henylg lycine (D/LHhpg) as main ligands, { [Cd(Dhpg)(bpp)(H2O)]·(NO3)·(H2O)}n (1), { [Cd(Lhpg)(bpp)(H2O)]·(NO3)·(H2O)}n (2) (bpp = 1, 3bis(4pyridyl)propane) have been synthesized and characterized by single crystal X-ray diffraction (SCXRD), elemental analysis (EA), infrared spectroscopy (IR), powder X-ray diffraction (PXRD), thermogravimetric analysis (TGA) and circular dichroism spectra (CD).The tests showed that Compounds 1 and 2 are a pair of enantiomers, belong to monoclinic crystal system, P21 chiral space group. They are 1D left-hand or right-hand spiral chain structures respectively, which are extanded into 3D supramolecular structure by the hydrogen bonding. Fluorescence spectroscopy shows that compounds 1 and 2 have good fluorescence properties, and have also good fluorescence recognition ability for Cu2+/Fe3+ in aqueous solution, and can be used to detect Cu2+/Fe3+ ions in water.

关键词

关键词： D(-)/L(+)-对羟基苯甘氨酸； 手性配位聚合物； 晶体结构； 荧光识别
Key words： D(-)/L(+)-4-hydroxyphenylglycine ; chiral coordination polymers ; crystal structure ; fluorescent recognition

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