通过粉末衍射重新定义为氢键连接的Ca(HO)(BF)带的Ca(BF)·xHO 。
Ca(BF)·xHO redefined from powder diffraction as hydrogen-bonded Ca(HO)(BF) ribbons.
作者信息
Le Bail Armel
机构信息
Le Mans Université, Institut des Molécules et des Matériaux du Mans, CNRS UMR 6283, Av. Olivier Messiaen, 72085 Le Mans, France.
出版信息
Acta Crystallogr C Struct Chem. 2025 Jun 1;81(Pt 6):338-341. doi: 10.1107/S2053229625004395. Epub 2025 May 19.
The crystal structure of the calcium bis(tetrafluoroborate) hydrate Ca(BF)·xHO has been determined from laboratory powder diffraction data. The water molecules all belong to [CaOF] square antiprisms sharing F corners with [BF] tetrahedra, forming a mono-dimensional structure of infinite ribbons interconnected by H...F and H...O hydrogen bonds. No place is found for interstitial water molecules, so that the compound has to be reformulated as Ca(HO)(BF), which is isostructural with calcium perchlorate tetrahydrate, Ca(ClO)·4HO.
已根据实验室粉末衍射数据确定了水合二（四氟硼酸）钙Ca(BF₄)₂·xH₂O的晶体结构。水分子均属于[CaOF₈]方形反棱柱体，与[BF₄]四面体共用F角，形成由H...F和H...O氢键相互连接的无限长带的一维结构。未发现间隙水分子的位置，因此该化合物必须重新表述为Ca(H₂O)(BF₄)₂，它与四水合高氯酸钙Ca(ClO₄)₂·4H₂O同构。
Zotero 插件