一类烃,其中一个碳原子与另外两个碳原子形成两个双键 - R2C=C=CR2；特别是母体化合物 CH2=C=CH2(丙二烯)。
allenes — plural of allene
一类烃,其中一个碳原子与另外两个碳原子形成两个双键 - R2C=C=CR2；特别是母体化合物 CH2=C=CH2(丙二烯)。
一类烃,其中一个碳原子与另外两个碳原子形成两个双键 - R2C=C=CR2；特别是母体化合物 CH2=C=CH2(丙二烯)。
Any of a class of hydrocarbons having two double bonds from one carbon atom to two others - R2C=C=CR2; especially the parent compound CH2=C=CH2 (propadiene).
此类烃的任何衍生物。
Any derivative of such hydrocarbons.
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