title: Syntheses, structures and properties of two 2-D layered hybrid organic-inorganic materials based on different V4O12 building units.
abstract: Two new layered hybrid organic-inorganic compounds [Zn(pyim)]2V4O12 () (pyim = 2-(2-pyridyl)imidazole) and [Cu(bim)2]2V4O12(H2O)·CH3CH2OH () (bim = bis(1-imidazolyl)methane) based on polyoxovanadates (POVs) and organic ligands decorated transition metal units have been synthesized by hydrothermal and solvothermal methods respectively. Single crystal XRD, fluorescence spectrum, magnetic measurement, IR spectra, powder XRD and thermogravimetric (TG) measurements were performed to analyze the structures and properties of and . The structural analysis reveals that compound features a two-dimensional {[Zn(pyim)]2V4O12}n layered structure, constructed by sine wave-like {V4O12}n(4n-) chains, Zn(2+) ions and pyim ligands. In the layered structure of , {V4O12}(4-) circles are connected by Cu(2+) ions to form {Cu(V4O12)}n(2n-) chains, which are further linked by {Cu(bim)4}(2+) subunits to generate a hybrid layer of . The magnetic susceptibility measurement indicates strong antiferromagnetic interactions between Cu(2+) ions in .
authors.affiliation: College of Chemistry and Chemical Engineering, State Key Laboratory of Materials-Oriented Chemical Engineering, Nanjing University of Technology, Nanjing 210009, P. R. China. yanxu@njut.edu.cn.
authors.forename: Wentao
authors.initials: W
authors.lastname: Hou
authors.forename: Jiuyu
authors.initials: J
authors.lastname: Guo
authors.forename: Xiao
authors.initials: X
authors.lastname: Xu
authors.forename: Zuoxiang
authors.initials: Z
authors.lastname: Wang
authors.forename: Deng
authors.initials: D
authors.lastname: Zhang
authors.forename: Hongxiang
authors.initials: H
authors.lastname: Wan
authors.forename: You
authors.initials: Y
authors.lastname: Song
authors.forename: Dunru
authors.initials: D
authors.lastname: Zhu
authors.forename: Yan
authors.initials: Y
authors.lastname: Xu