KMg6(P2O7)2P3O10: A novel phosphate with two distinct anions

被引：20
作者：
Shen, Yaoguo [1 ,2 ,3 ]
Zeng, Siyuan [2 ,3 ]
Xu, Yingying [2 ,3 ]
Liu, Sijie [2 ,3 ]
Wang, Sasa [2 ,3 ]
Wu, Zhenyue [2 ,3 ]
Zhao, Sangen [2 ]
Luo, Junhua [2 ]
机构：
[1] Minjiang Univ, Dept Phys & Elect Informat Engn, Fuzhou 350108, Fujian, Peoples R China
[2] Chinese Acad Sci, Fujian Inst Res Struct Matter, Key Lab Optoelect Mat Chem & Phys, Fuzhou 350002, Fujian, Peoples R China
[3] Univ Chinese Acad Sci, Beijing 100039, Peoples R China
来源：
INORGANIC CHEMISTRY COMMUNICATIONS | 2016年 / 66卷
关键词：
Mixed-anion phosphate; Pauling's parsimony rule; Infrared spectrum; CRYSTAL-STRUCTURE; POTASSIUM POLYPHOSPHATE; CHEMISTRY; POLYMORPHISM;
D O I：
10.1016/j.inoche.2016.02.006
中图分类号：
O61 [无机化学];
学科分类号：
070301 ; 081704 ;
摘要：
A novel mixed-anion phosphate, KMg6(P2O7)(2)P3O10, has been synthesized by spontaneous crystallization technique with K2O-P2O5-Li2O as a flux. Single-crystal X-ray analysis reveals that KMg6(P2O7)(2)P3O10 features two kinds of isolated anions, [P2O7] dimers and [P3O10] trimers. Such coexisting of two distinct anions in one polyphosphate, which has somewhat conflict with Pauling's parsimony (V) rule, is very rare in alkali metal and alkali-earth metal phosphates. This finding enriches the structural chemistry of phosphates and provides new perspective on the design of multiple anion materials. The thermal stability and a.c. conductivity of KMg6(P2O7)(2)P3O10 are also discussed in this paper. (C) 2016 Elsevier B.V. All rights reserved.
引用
收藏
页码：83 / 86
页数：4
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