摘要
对二甲基二烷氧基硅烷的电子轰击质谱进行了研究。断裂方式主要包括以下几种：Ｓｉ－Ｃ键的断裂（脱ＣＨ３）、Ｓｉ－Ｏ链的断裂（脱ＯＣＨ２Ｒ、Ｏ－Ｏ键的断裂（＾＋ＣＨ２Ｒ的生成）、Ｃ－Ｃ键的断裂、氢重排脱烯ＣｎＨ２ｎ、氢重排脱醛ＰＣＨＯ等。
Studies on the mass spectra of dimethyl dialkoxy silanes by electron impact technique were made. The fragmentation ways contain: Si-C bond broken(demethylation), Si-O bond broken(dealkoxylation), O-C bond broken (+￣CH_2R formation) ,C-C bond broken,hydrogen rearrangement with C_nH_2n elimination fragmentation, hydrogen rearrangement with alkylaldehyde RCHO elimination fragmentation.
关键词
二甲基
二烷氧基硅烷
质谱
裂解
dimethyldialkoxysilane, mass spectra, fragmentation
