title: NaKV4O9·2H2O: a new 2D magnetic compound with a 1/5-depleted square lattice.
abstract: A new vanadate compound NaKV4O9·2H2O is successfully synthesized by a conventional hydrothermal method. This compound crystallizes in the monoclinic system with the space group C2/c, showing a typical 2D layered structure built from VO5 pyramids, in which the layers are separated by Na(+), K(+), and H2O. The topology structure of magnetic V(4+) ions shows a quite interesting 1/5-depleted square lattice, which is quite similar to that of a famous low-dimensional quantum spin system CaV4O9. A structural and magnetic comparison confirmed that the title compound may exhibit a more pronounced 2D character with a large spin gap.
authors.affiliation: State Key Laboratory of Structural Chemistry, Fujian Institute of Research on the Structure of Matter, Chinese Academy of Sciences, Fuzhou, Fujian 350002, China. hezz@fjirsm.ac.cn and University of the Chinese Academy of Sciences, Beijing, 100049, P. R. China.
authors.forename: Meiyan
authors.initials: M
authors.lastname: Cui
authors.affiliation: State Key Laboratory of Structural Chemistry, Fujian Institute of Research on the Structure of Matter, Chinese Academy of Sciences, Fuzhou, Fujian 350002, China. hezz@fjirsm.ac.cn.
authors.forename: Zhangzhen
authors.initials: Z
authors.lastname: He
authors.affiliation: State Key Laboratory of Structural Chemistry, Fujian Institute of Research on the Structure of Matter, Chinese Academy of Sciences, Fuzhou, Fujian 350002, China. hezz@fjirsm.ac.cn.
authors.forename: Nannan
authors.initials: N
authors.lastname: Wang
authors.affiliation: State Key Laboratory of Structural Chemistry, Fujian Institute of Research on the Structure of Matter, Chinese Academy of Sciences, Fuzhou, Fujian 350002, China. hezz@fjirsm.ac.cn.
authors.forename: Yingying
authors.initials: Y
authors.lastname: Tang
authors.affiliation: State Key Laboratory of Structural Chemistry, Fujian Institute of Research on the Structure of Matter, Chinese Academy of Sciences, Fuzhou, Fujian 350002, China. hezz@fjirsm.ac.cn.
authors.forename: Wenbin
authors.initials: W
authors.lastname: Guo
authors.affiliation: State Key Laboratory of Structural Chemistry, Fujian Institute of Research on the Structure of Matter, Chinese Academy of Sciences, Fuzhou, Fujian 350002, China. hezz@fjirsm.ac.cn.
authors.forename: Suyun
authors.initials: S
authors.lastname: Zhang
authors.affiliation: State Key Laboratory of Structural Chemistry, Fujian Institute of Research on the Structure of Matter, Chinese Academy of Sciences, Fuzhou, Fujian 350002, China. hezz@fjirsm.ac.cn.
authors.forename: Lin
authors.initials: L
authors.lastname: Wang
authors.affiliation: State Key Laboratory of Structural Chemistry, Fujian Institute of Research on the Structure of Matter, Chinese Academy of Sciences, Fuzhou, Fujian 350002, China. hezz@fjirsm.ac.cn.
authors.forename: Hongping
authors.initials: H
authors.lastname: Xiang