High-Pressure Synthesis and Characterization of the Ammonium Yttrium Borate (NH4)YB8O14

被引:8
|
作者
Schmitt, Martin K. [1 ]
Podewitz, Maren [1 ]
Liedl, Klaus R. [1 ]
Huppertz, Hubert [1 ]
机构
[1] Univ Innsbruck, Inst Allgemeine Anorgan & Theoret Chem, Innrain 80-82, A-6020 Innsbruck, Austria
基金
奥地利科学基金会;
关键词
BOND-VALENCE PARAMETERS; CRYSTAL-STRUCTURE; MOLECULAR-CRYSTALS; HARTREE-FOCK; FREQUENCIES; METABORATE; CHEMISTRY; SOLIDS; UREA;
D O I
10.1021/acs.inorgchem.7b02402
中图分类号
O61 [无机化学];
学科分类号
070301 ; 081704 ;
摘要
The first high-pressure yttrium borate (NH4)YB8O14 was synthesized at 12.8 GPa/1300 degrees C using a Walker-type multianvil module. The compound crystallizes in the orthorhombic space group Pnma (no. 62) with the lattice parameters a = 17.6375(9), b = 10.7160(5), and c = 4.2191(2) angstrom. (NH4)YB8O14 constitutes a novel structure type but exhibits similarities to the crystal structure of beta-BaB4O7. X-ray single-crystal and powder diffraction, EDX, vibrational spectroscopy as well as quantum chemical calculations were used to characterize (NH4)YB8O14.
引用
收藏
页码:14291 / 14299
页数:9
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