期刊
SOLID STATE SCIENCES
卷 8, 期 8, 页码 927-931出版社
ELSEVIER SCIENCE BV
DOI: 10.1016/j.solidstatesciences.2006.02.045
关键词
poly(hydrogen fluorides); hydrogen bond; crystal structure; barium fluoride
Single crystals of the composition Ba(H3F4)2 were obtained from an anhydrous hydrogen fluoride (aHF) solution of BaF2, in the presence of XeF2 and excessive PF5. The compound crystallizes in a hexagonal P (6) over bar 2c space group with a = 7.7756(12) angstrom, c = 12.650(3) angstrom, V = 662.4(2) angstrom(3) and Z = 4. The coordination sphere of barium atom consists of twelve fluorine atoms from HF molecules forming regular icosahedra. Metal and fluorine atoms form infinite three-dimensional network. HF molecules are bonded via F- anions to H3F4- anions. The Ba(H3F4)(2) compound represents the first known example of homoleptic HF environment of the metal cation. (c) 2006 Elsevier SAS. All rights reserved.
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