State Key Laboratory of Structural Chemistry, Fujian Institute of Research on the Structure of Matter, Chinese Academy of Sciences, Fuzhou, 350002, PR China.
Dalton Trans. 2010 Dec 28;39(48):11560-7. doi: 10.1039/c0dt00848f. Epub 2010 Nov 1.
Systematic explorations of new phases in the Ln(III)-V(V)-Se(IV)-O systems by hydrothermal syntheses led to four new quaternary compounds, namely, Nd(2)(V(V)(2)O(4))(SeO(3))(4)·H(2)O (1), Ln(V(V)O(2))(SeO(3))(2) (Ln = Eu 2, Gd 3, Tb 4). The structure of Nd(2)(V(V)(2)O(4))(SeO(3))(4)·H(2)O features a 3D framework composed of the 2D layers of N d(SeO(3)) bridged by the infinite VO(2)(SeO(3)) chains with the lattice water molecules located at the 6-membered ring tunnels formed. The structure of Ln(V(V)O(2))(SeO(3))(2) (Ln = Eu, Gd, Tb) also features a 3D framework composed of 2D layers of Ln(SeO(3)) bridged by the infinite (VO(2))(SeO(3)) double chains. The 1D vanadium oxide selenite chain of 1 differs significantly from those in compounds 2-4 in terms of the coordination modes of the selenite groups and the connectivities between neighbouring VO(6) octahedra. Luminescent and magnetic properties of these compounds were also measured.
通过水热合成法对 Ln(III)-V(V)-Se(IV)-O 体系中的新相进行系统探索，得到了四个新的四元化合物，分别为 Nd(2)(V(V)(2)O(4))(SeO(3))(4)·H(2)O（1）和 Ln(V(V)O(2))(SeO(3))(2)（Ln = Eu 2, Gd 3, Tb 4）。Nd(2)(V(V)(2)O(4))(SeO(3))(4)·H(2)O 的结构特征为三维框架，由二维层N d(SeO(3))通过无限VO(2)(SeO(3))链桥接而成，晶格水分子位于 6 元环隧道形成处。Ln(V(V)O(2))(SeO(3))(2)（Ln = Eu, Gd, Tb）的结构也为三维框架，由二维层Ln(SeO(3))通过无限(VO(2))(SeO(3))双链桥接而成。化合物 1 的一维氧化钒硒酸盐链在硒酸盐基团的配位模式和相邻 VO(6)八面体之间的连接方面与化合物 2-4 有显著差异。还测量了这些化合物的发光和磁性性质。
