高等学校化学学报 ›› 2017, Vol. 38 ›› Issue (10): 1724.doi: 10.7503/cjcu20170066

• 研究论文: 无机化学 • 上一篇    下一篇

具有四连接网络的单一手性螺旋配位聚合物的合成与结构表征

徐中轩()   

  1. 遵义师范学院化学化工学院, 遵义 563002
  • 收稿日期:2017-01-26 出版日期:2017-10-10 发布日期:2017-09-20
  • 作者简介:联系人简介: 徐中轩, 男, 博士, 副教授, 主要从事配位聚合物研究. E-mail:xuzhongxuan4201@163.com
  • 基金资助:
    国家自然科学基金(批准号: 21761036)、 贵州省教育厅“125”重大专项基金(批准号: 2012015)和遵义师范学院博士基金(批准号: 2012BSJJ12)资助

Synthesis and Structure Characterization of Homochiral Helical Coordination Polymers with 4-Connected Net Based on Lactic Acid Derivatives

XU Zhongxuan()   

  1. School of Chemistry and Chemical Engineering, Zunyi Normal College, Zunyi 563002, China
  • Received:2017-01-26 Online:2017-10-10 Published:2017-09-20
  • Supported by:
    † Supported by the National Natural Science Foundation of China(No.21761036), the “125” Program of Guizhou Education Department, China(No.2012015) and the Doctoral Scientific Fund of Zunyi Normal College, China(No.2012BSJJ12)

摘要:

在水热反应条件下, 使用乳酸衍生物[(R)-H2CBA和(S)-H2CBA]和辅助配体1, 4-DIB与Ni2+组合, 制备出一对具有dia拓扑网络的单一手性框架材料 [Ni2((R)-CBA)2(1,4-DIB)3(H2O)2xH2O(1-D)和[Ni2((S)-CBA)2(1,4-DIB)3(H2O)2] ·xH2O(1-L). 配合物1-D和1-L具有2种由1,4-DIB与Ni2+组构建而成的螺旋链以及二重穿插的结构特征. 此外, 对上述配合物进行了粉末X射线衍射、 热失重和圆二色谱测试并对结果进行了分析.

关键词: 单一手性金属有机框架, 四连接网络, 二重穿插, 螺旋链

Abstract:

Using lactic acid derivatives (R),(S)-4-(1-carboxyethoxy)benzoic acid[(R)-H2CBA and (S)-H2CBA)] and 1,4-di(1H-imidazol-1-yl)benzene(1,4-DIB) ligand to assemble with Ni2+ ions, a pair of novel 4-connected homochiral metal-organic frameworks, [Ni2((R)-CBA)2(1,4-DIB)3(H2O)2xH2O(1-D) and [Ni2((S)-CBA)2(1,4-DIB)3(H2O)2] ·xH2O(1-L) have been synthesized under hydrothermal conditions. Complexes 1-D and 1-L feature 2-fold interpenetration structure, containing two kinds of helical chains constructed by achiral 1, 4-DIB ligands and Ni2+ ions. Moreover, powder X-ray diffraction(PXRD), thermogrtavimetric analysis(TGA) and solid-state circular dichroism(CD) techniques were also applied to investigate the properties of the complexes..

Key words: Homochiral metal-organic framework, 4-Connected net, 2-Fold interpenetration, Helical chain

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