Synthesis, structure and characterization of Cd2TeO3Cl2 with unprecedented [Cd2O6Cl4] octahedral dimers

被引：2
作者：
Wang, Linan [1 ,2 ]
Bai, Chen [1 ]
Kong, Yingying [1 ]
Iqbal, Maqsood [1 ,2 ]
Chu, Yu [1 ,2 ]
Li, Junjie [1 ,2 ]
机构：
[1] Chinese Acad Sci, Xinjiang Tech Inst Phys & Chem, Res Ctr Crystal Mat, CAS Key Lab Funct Mat & Devices Special Environm, Urumqi 830011, Peoples R China
[2] Univ Chinese Acad Sci, Ctr Mat Sci & Optoelect Engn, Beijing 100049, Peoples R China
来源：
DALTON TRANSACTIONS | 2023年 / 52卷 / 44期
基金：
中国国家自然科学基金;
关键词：
NONLINEAR-OPTICAL MATERIAL; CATION SUBSTITUTION;
D O I：
10.1039/d3dt02515b
中图分类号：
O61 [无机化学];
学科分类号：
070301 ; 081704 ;
摘要：
A new mixed anionic compound Cd2TeO3Cl2 with unprecedented [Cd2O6Cl4] octahedral dimers has been synthesized, and millimeter-scale single crystals of Cd2TeO3Cl2 have been grown by the vertical Bridgman method with CdCl2 as the flux. Cd2TeO3Cl2 crystallizes in the centrosymmetric P (1) over bar (no. 2) space group, and shows a mixed cationic layer structure constituted by distorted [TeO3] motifs, mixed anionic [Cd2TeO3Cl4] chains, and [Cd2O6Cl4] octahedral dimers. Experimental and theoretical results show that Cd2TeO3Cl2 is a direct band gap compound with an experimental band gap of similar to 4.25 eV. Meanwhile, the compound has good optical transmittance in the 3-5 mu m atmospheric window. The results indicate that Cd2TeO3Cl2 could be used as a promising mid-IR window material, and could enrich the chemical and structural diversity of oxides.
引用
收藏
页码：16297 / 16302
页数：6
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