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|Section2= |Section3= }} Dihydroxymethylidene is a chemical compound with formula C(OH)2. There is no evidence that this compound exists in solution, but the molecule has been detected in the gas phase.〔Schreiner, Peter R.; Reisenauer, Hans Peter "Spectroscopic identification of dihydroxycarbene" Angewandte Chemie, International Edition (2008, volume 47, 7071-7074. 〕 Many related carbenes are known, although they are often transient.〔M. Jones, Jr., R. A. Moss, in "Reactive Intermediate Chemistry", Edited by R. A. Moss, M. S. Platz, M. Jones, Jr., Wiley-Interscience, Hoboken, 2004.〕 == Production and properties== Dihydroxymethylidene is produced in the gas phase by high vacuum flash pyrolysis of oxalic acid: :C2O4H2 → C(OH)2 + CO2 The species is a bent molecule with an O-C-O angle of 105.6° for the C2v all trans rotamer. Although stable at 10 K, at higher temperatures it isomerizes to formic acid. 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「Dihydroxymethylidene」の詳細全文を読む スポンサード リンク
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