Edge-Sharing BO4 Tetrahedra in the Structure of Hydrothermally Synthesized Barium Borate: α-Ba3[B10O17(OH)2]

被引：21
|
作者：
Jen, I-Hsuan [1 ]
Lee, Yi-Chang [1 ]
Tsai, Cheng-En [1 ]
Lii, Kwang-Hwa [1 ,2 ]
机构：
[1] Natl Cent Univ, Dept Chem, Zhongli 320, Taiwan
[2] Acad Sinica, Inst Chem, Taipei 115, Taiwan
来源：
INORGANIC CHEMISTRY | 2019年 / 58卷 / 07期
关键词：
CRYSTAL-STRUCTURE; REFINEMENT; OXOBORATE; POLYANION;
D O I：
10.1021/acs.inorgchem.9b00345
中图分类号：
O61 [无机化学];
学科分类号：
070301 ; 081704 ;
摘要：
Two polymorphs of a new barium borate, alpha- and beta-Ba-3[B10O17(OH)(2)], have been synthesized through hydrothermal reactions at 500 degrees C and 1000 bar and their structures determined by single-crystal X-ray diffraction. The 3D framework structure of the alpha-form is formed of two different fundamental building blocks (FBB) with the descriptors 4 Delta 6 square[(sic)(sic)]- <3 square>- <2 Delta square>1-<3 square>-<2 Delta square>1 and 2030:<020> <020>. The former FBB is unique and contains unusual edge-sharing B04 tetrahedra. The /3 form has a double layer structure which is formed of two stereoisomers of a pentaborate polyanion with the descriptor 2030:<6.20> <[120>. Within a double layer, one sheet composed of FBBs in 1 configuration is connected by sharing tetrahedral vertices to the other sheet of FBBs in d configuration. The a-form is the first compound with edge-sharing B04 tetrahedra synthesized in aqueous solution under hydrothermal conditions.
引用
收藏
页码：4085 / 4088
页数：4
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