1.2038 H一C≡C才H 1.0618 180° 2.Nomenclature: (I).看成乙炔的衍生物(derivative). CHCH,C=C-CH Ethyl methyl acetylene CH,=CH-C=CH Vinyl acetylene (2).IUPAC. (3).烯炔」 CH3一CH=CH一CH2一C=CCH32. Nomenclature: (1). 看成乙炔的衍生物(derivative). CH3CH2 - C≡C - CH3 Ethyl methyl acetylene CH2=CH - C≡CH Vinyl acetylene (2). IUPAC. (3). 烯炔. CH3 CH CH CH2 C C CH3