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|Section2= |Section3= |Section4= }} Iodine monofluoride is an interhalogen compound of iodine and fluorine with formula IF. It is a chocolate-brown solid that decomposes at 0 C,〔 Mary Eagleson (1994), ''Concise Encyclopedia of Chemistry''. Walter de Gruyter. 1201 pages. ISBN 3-11-011451-8, ISBN 978-3-11-011451-5. 〕 disproportionating to elemental iodine and iodine pentafluoride: :5 IF → 2 I2 + IF5 However, its molecular properties can still be precisely determined by spectroscopy: the iodine-fluorine distance is 190.9 pm and the I−F bond dissociation energy is around 277 kJ mol−1. At 298 K, its standard enthalpy change of formation is Δ''H''f° = −95.4 kJ mol−1, and its Gibbs free energy is Δ''G''f° = −117.6 kJ mol−1. It can be generated, albeit only fleetingly, by the reaction of the elements at −45 °C in CCl3F: :I2 + F2 → 2 IF It can also be generated by the reaction of iodine with iodine trifluoride at −78 °C in CCl3F: :I2 + IF3 → 3 IF The reaction of iodine with silver(I) fluoride at 0 °C also yields iodine monofluoride: :I2 + AgF → IF + AgI ==Reactions== Iodine monofluoride is used to produce pure nitrogen triiodide: :BN + 3 IF → NI3 + BF3 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「Iodine monofluoride」の詳細全文を読む スポンサード リンク
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