摘要
利用水热合成条件,在辅助配体帮助下,乳酸衍生物与Zn^2+反应合成出了2对单一手性的配位聚合物,即{[Zn((R)-CBA)(1,3-DIMB)]·H2O}n(1-D)、{[Zn((S)-CBA)(1,3-DIMB)]·H2O}n(1-L)、[Zn2((R)-CBA)2(1,4-BMIP)]n(2-D)和[Zn2((S)-CBA)2(1,4-BMIP)2]n(2-L)。结构分析揭示上述所有配合物都包含由CBA2-配体与Zn(Ⅱ)离子构建而成的螺旋链。此外,刚性的辅助配体1,3-DIMB和1,4-BMIP在结构多样性中发挥了重要作用。测试了配合物的热稳定性、固态圆二色谱、荧光性质等。研究结果表明半刚性乳酸配体可以有效地合成螺旋结构的单一手性配位聚合物。
Two pairs of novel homochiral coordination polymers(HCPs),formulated as{[Zn((R)-CBA)(1,3-DIMB)]·H2O}n(1-D),{[Zn((S)-CBA)(1,3-DIMB)]·H2O}n(1-L),[Zn2((R)-CBA)2(1,4-BMIP)]n(2-D)and[Zn2((S)-CBA)2(1,4-BMIP)2]n(2-L)have been synthesized using lactic acid ligands((R)-H2CBA and(S)-H2CBA)and Zn2+under hydrothermal conditions.Crystallographic analysis reveals that all the complexes contain chiral helical chains,which are constructed by CBA2-ligands and Zn(Ⅱ)ions.Meanwhile,the rigid auxiliary ligands 1,3-DIMB and 1,4-BMIP play important roles in structural diversity.Some physical characteristics,including thermal stabilities,solid-state circular dichroism(CD),and photoluminescent properties,were also carried out.The results show that the semi-rigid lactic acid ligand can used to effectively synthesize HCPs with a helical structure.CCDC:1917675,1-D;1917676,1-L;1917677,2-D;1917678,2-L.
作者
徐中轩
石明凤
XU Zhong-Xuan;SHI Ming-Feng(School of Chemistry and Chemical Engineering,Zunyi Normal College,Zunyi,Guizhou 563002,China)
出处
《无机化学学报》
SCIE
CAS
CSCD
北大核心
2019年第12期2346-2354,共9页
Chinese Journal of Inorganic Chemistry
基金
国家自然科学基金(No.21761036)
贵州省科学技术基金(No.20181182)资助项目
关键词
单一手性
螺旋链
乳酸衍生物
辅助配体
homochiral
helical chain
lactic acid derivative
auxiliary ligand
