High-pressure synthesis and crystal structure of the lithium borate HP-LiB<sub>3</sub>O<sub>5</sub>期刊界 All Journals 搜尽天下杂志传播学术成果专业期刊搜索期刊信息化学术搜索

High-pressure synthesis and crystal structure of the lithium borate HP-LiB₃O₅

Authors:	Stephanie C. Neumair,Reinhard Kaindl,Daniel M. Tö bbens,Hubert Huppertz

Affiliation:	^a Institut für Allgemeine, Anorganische und Theoretische Chemie, Leopold-Franzens-Universität Innsbruck, Innrain 52a, A-6020 Innsbruck, Austria ^b Institut für Mineralogie und Petrographie, Leopold-Franzens-Universität Innsbruck, Innrain 52, A-6020 Innsbruck, Austria

Abstract:	The new lithium borate HP-LiB₃O₅ was synthesized under high-pressure/high-temperature conditions of 6 GPa and 1050 °C in a multianvil press with a Walker-type module. The compound crystallizes in the space group Pnma (no. 62) with the lattice parameters a=829.7(2), b=759.6(2), and c=1726.8(4) pm (Z=16). The high-pressure compound HP-LiB₃O₅ is built up from a three-dimensional network of BO₄ tetrahedra and BO₃ groups, which incorporates Li⁺ ions in channels along the b-axis. Band assignments of measured IR- and Raman spectra were done via quantum-mechanical calculations. Additionally, the thermal behavior of HP-LiB₃O₅ was investigated.

Keywords:	Lithium borate Borate High pressure Multianvil Crystal structure
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