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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 Tetrabromomethane ： ウィキペディア英語版 Tetrabromomethane |Section2= |Section3= |Section4= |Section5= |Section6= }} Tetrabromomethane, CBr4, also known as carbon tetrabromide, is a carbon bromide. Both names are acceptable under IUPAC nomenclature. ==Physical properties== Tetrabromomethane has two polymorphs: crystalline II or β below 46.9 °C (320.0 K) and crystalline I or α above 46.9 °C. Monoclinic polymorph has space group ''C2/c'' with lattice constants: ''a'' = 20.9, ''b'' = 12.1, ''c'' = 21.2 (.10−1 nm), β = 110.5°.〔F. Brezina, J. Mollin, R. Pastorek, Z. Sindelar. ''Chemicke tabulky anorganickych sloucenin'' (''Chemical tables of inorganic compounds''). SNTL, 1986.〕 Bond energy of C-Br is 235 kJ.mol−1.〔N. N. Greenwood, A. Earnshaw. ''Chemie prvku'' (''Chemistry of the Elements''). Informatorium, Prague, 1993.〕 Due to its symmetrically substituted tetrahedral structure, its dipole moment is 0 Debye. Critical temperature is 439 °C (712 K) and critical pressure is 4.26 MPa.〔 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「Tetrabromomethane」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.