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翻訳と辞書　辞書検索 [ 開発暫定版 ] スポンサード リンク Germanium difluoride ： ウィキペディア英語版 Germanium difluoride |Section2= |Section3= |Section7= |Section8= }} Germanium difluoride (GeF2) is a chemical compound of germanium and fluorine. It is a white solid with a melting point of 110 °C which can be produced by reacting germanium tetrafluoride with germanium powder at 150–300 °C.〔 ==Structure== Germanium difluoride forms orthorhombic crystals with a space group P212121 (No. 19), Pearson symbol oP12, and lattice constants a = 0.4682 nm, b = 0.5178 nm, c = 0.8312 nm, Z = 4 (four structure units per unit cell). Its crystal structure is characterized by strong polymeric chains composed by GeF3 pyramids. One of the fluorine atom in the pyramid is shared by two neighboring chains, providing a weak link between them.〔 Another, less common crystal form of GeF2 has tetragonal symmetry with a space group P41212 (No. 92), Pearson symbol tP12, and lattice constants a = 0.487 nm, b = 0.6963 nm, c = 0.858 nm.〔 抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』 ■ウィキペディアで「Germanium difluoride」の詳細全文を読む スポンサード リンク 翻訳と辞書 : 翻訳のためのインターネットリソース Copyright(C) kotoba.ne.jp 1997-2016. All Rights Reserved.