摘要
本文报道66个新型含氟液晶类化台物的电子轰击电离质谱(EIMS)。66个化台物分为三个类型,即炔醚类、炔酯类和炔类.并利用MS/MS联用技术和高分辨质谱(HRMS)数据研究了三种不同类型化合物的裂解机理,并总结其觇律性,结果将有助于未知的类似化合物的结构鉴定。
The EI mass spectra of sixty-six new fluorinated liquid crystal compounds, including three types, were studied. The fragmentation mechanism has been discussed. The results may be summarized as follows: for type A, the C-O bond cleavage of centric bridge occurred predominatly leading to formation of the ion which was very easy to lose CnH2n; for type B, the α-cleavage of the centric bridge carbonyl gave the characteristic ion and for type C, they all showed strong molecular ion peaks, the fragmentation pathways of the latter were very simple.
出处
《有机化学》
SCIE
CAS
CSCD
北大核心
1995年第2期150-160,共11页
Chinese Journal of Organic Chemistry