...General name for aliphatic unsaturated chain hydrocarbons with one triple bond. A group of compounds with the general formula C n H 2 n -2 , also known as acetylene series hydrocarbons. Two of the carbon atoms that make up the skeleton are triple-bonded, but all other carbon-carbon bonds are single bonds. For this reason, alkynes have a molecular formula with four fewer hydrogen atoms than alkanes with the same number of carbon atoms. In the IUPAC nomenclature system, alkanes are named by changing the ending "ane" of the alkane to "yne." ... *Some of the terminology references to "acetylenic hydrocarbons" are listed below. Source | Heibonsha World Encyclopedia 2nd Edition | Information |
…三重結合一つをもつ脂肪族鎖式不飽和炭化水素の一般名。一般式CnH2n-2で表される一群の化合物で,アセチレン系(アセチレン列)炭化水素ともよばれる。骨格をつくる炭素原子のうちの2個は三重結合で結ばれているが,他の炭素間結合はすべて単結合である。このためアルキンは,同数の炭素原子を含むアルカンに比べて,水素が4原子少ない分子式をもつ。IUPAC命名法では,アルカンの語尾〈アンane〉を〈インyne〉に変えて命名する。… ※「アセチレン列炭化水素」について言及している用語解説の一部を掲載しています。 出典|株式会社平凡社世界大百科事典 第2版について | 情報 |
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