The Double Molybdate Rb2Ba(MoO4)2: Synthesis, Crystal Structure, Optical, Thermal, Vibrational Properties, and Electronic Structure

被引：12
|
作者：
Zhou, Molin [1 ,2 ,3 ]
Jiang, Xingxing [1 ,2 ,3 ]
Li, Chao [1 ,2 ,3 ]
Lin, Zheshuai [1 ,2 ]
Yao, Jiyong [1 ,2 ]
Wu, Yicheng [1 ,2 ]
机构：
[1] Chinese Acad Sci, Tech Inst Phys & Chem, Ctr Crystal Res & Dev, Beijing 100190, Peoples R China
[2] Chinese Acad Sci, Key Lab Funct Crystals & Laser Technol, Beijing 100190, Peoples R China
[3] Univ Chinese Acad Sci, Beijing 100049, Peoples R China
来源：
ZEITSCHRIFT FUR ANORGANISCHE UND ALLGEMEINE CHEMIE | 2015年 / 641卷 / 12-13期
基金：
中国国家自然科学基金;
关键词：
Crystal structure; Molybdenum; Optical properties; Thermal properties; Electronic structure; MICROWAVE-ASSISTED SYNTHESIS; CITRATE COMPLEX METHOD; ALKALINE; CAWO4; EARTH;
D O I：
10.1002/zaac.201500552
中图分类号：
O61 [无机化学];
学科分类号：
070301 ; 081704 ;
摘要：
The double molybdate Rb2Ba( MoO4) 2 was synthesized by high temperature solid- state reaction. According to the single- crystal X- ray diffraction structure determination, it is isostructural to the mineral Palmierite K2Pb( SO4) 2 in the trigonal space group R3 m. Its structure can be described as layers of MoO4 tetrahedra corner- sharing with distorted BaO6 octahedra, while the layers are separated by bi- layers of rubidium cations in 10- coordinate environment. UV/ Vis- NIR spec- troscopy measurement indicates that Rb2Ba( MoO4) 2 has an indirect bandgap of 4.40 eV, comparable to the calculated value 4.21 eV. The DSC test demonstrates the melting point and incongruent melting characteristic of the title compound. About seven narrow Raman lines were observed in the Raman spectrum recorded for Rb2Ba( MoO4) 2 powder sample.
引用
收藏
页码：2321 / 2325
页数：5
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