Two Zinc(Ⅱ) Complexes Based on Trans-(1R,2R)-cyclohexanediamine: Molecular Structure Analyses and Preparation of Composite Membrane

• 来源期刊: 高等学校化学研究（英文版）
• 年，卷（期）: 2019,（5）
• 页码范围: 749-754
• 页数: 6页
• 语种: 英文
• DOI: 10.1007/S40242-019-9142-1

摘要

Two novel complexes Zn2(chda)2(TPA)Cl2(1) and [Zn(chda)2(H2O)2](TPA)(H2O)2(2)[chda is a chiral ligand of trans-(1R,2R)-cyclohexanediamine,H2TPA is terephthalic acid] were synthesized at room temperature.The molecular structures of complexes 1 and 2 were identified by single-crystal X-ray diffraction measurement.The results showed that complex 1 had a binuclear structure,each Zn(Ⅱ) ion was four coordinated by two N atoms of chda,one O atom of TPA and one C1 atom,to construct a distorted tetrahedral geometry.For complex 2,the Zn(Ⅱ) ion was six coordinated by two chda molecules and two water molecules to form a ZnN4O2 octahedral geometry.Complexes 1 and 2 further extended into three-dimensional supramolecular frameworks by hydrogen-bonding interactions.Hirshfeld surface analysis and fmgerprmt plots were used to further analyze the contribution of different intermolecular interactions.Further,a composite membrane [Zn(chda)2(H2O)2](TPA)(H2O)2/CA was prepared by adding 10％(mass fraction) of complex 2 into cellulose acetate using acetone/chloroform(V∶ V=1 ∶ 1) as solvent.