title: Synthesis and magnetic properties of a new polymorph of Cu2(VO4)(OH) with a quasi-2D layer structure.
abstract: A new polymorph of copper(ii) vanadate, Cu2(VO4)(OH), containing a layered magnetic sublattice, is synthesized by a hydrothermal reaction. It displays a 3D framework based on copper(ii) oxide layers which are further connected by VO4 tetrahedra through corner-sharing {V-O-Cu} bonds in the system. The copper(ii) oxide layer is constructed by the interactions of Cu3(μ3-OH) building units. Magnetic properties are investigated by means of magnetic susceptibility, magnetization and heat capacity measurements. The results indicate a typical long-range canted antiferromagnetic ordering below ∼10 K and weak spin frustration arising from the competition between antiferromagnetic and ferromagnetic interactions inside the irregular Cu3(μ3-OH) triangles.
authors.affiliation: State Key Laboratory of Structural Chemistry, Fujian Institute of Research on the Structure of Matter, Chinese Academy of Sciences, Fuzhou 350002, P. R. China. hezz@fjirsm.ac.cn.
authors.forename: Su-Yun
authors.initials: SY
authors.lastname: Zhang
authors.forename: Zhang-Zhen
authors.initials: ZZ
authors.lastname: He
authors.forename: Ming
authors.initials: M
authors.lastname: Yang
authors.forename: Wen-Bin
authors.initials: WB
authors.lastname: Guo
authors.forename: Ying-Ying
authors.initials: YY
authors.lastname: Tang