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|Section2= |Section3= |Section4= |Section5= }} Neopentane, also called 2,2-dimethylpropane, is a double-branched-chain alkane with five carbon atoms. Neopentane is an extremely flammable gas at room temperature and pressure which can condense into a highly volatile liquid on a cold day, in an ice bath, or when compressed to a higher pressure. Neopentane is the simplest alkane with a quaternary carbon. It is one of the three structural isomers with the molecular formula C5H12 (pentanes), the other two being ''n''-pentane and isopentane. ==Nomenclature== IUPAC nomenclature retains the trivial name neopentane.〔 (Table 19(a) Acyclic and monocyclic hydrocarbons. Parent hydrocarbons ) 〕〔 〕 The systematic name is 2,2-dimethylpropane, but the substituent numbers are superfluous because it is the only possible "dimethylpropane." A neopentyl substituent, often symbolized by "Np", has the structure Me3C-CH2- for instance neopentyl alcohol (Me3CCH2OH or NpOH). As Np also symbolises the element neptunium (atomic number 93) one should use this abbreviation with care. 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「neopentane」の詳細全文を読む スポンサード リンク
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