期刊
INORGANIC CHEMISTRY
卷 52, 期 9, 页码 5378-5384出版社
AMER CHEMICAL SOC
DOI: 10.1021/ic4003324
关键词
-
资金
- National Natural Science Foundation of China [21003127, 21231006, 21203197]
The synthesis, crystal and electronic structures, and optical properties of the first zinc(II) vanadium(V) iodate, namely, Zn-2(VO4)(IO3), are reported. Zn-2(VO4)(IO3) crystallizes in the noncentrosymmetric (NCS) and polar space group Pc (No. 7) with a = 5.2714(8) angstrom, b = 10.0402(11) angstrom, c = 5.5070(8) angstrom, beta = 101326(10)degrees, and Z = 2. It displays a novel three-dimensional (3D) network structure composed of ZnO5, ZnO6, VO4, and IO3 polyhedra. One-dimensional (1D) chains of edge sharing ZnO5 polyhedra and ID chains of corner sharing ZnO6 octahedra along the c-axis are interconnected via corner sharing into a two-dimensional (2D) zinc oxide layer, and such layers are bridged by both VO4 tetrahedra and IO3 groups into a 3D network. The polarity in the structure is imparted by the alignment of the stereochemically active lone pairs of the iodate anions along the c-axis. The second harmonics generation (SHG) measurements on powder samples of Zn-2(VO4)(IO3) under 1064-nm laser radiation revealed a large response of similar to 6 X KDP, which is Type I phase matchable Thermal stability and optical properties, as well as theoretical calculations based on DFT methods, were also performed.
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