摘要
本文给出了五种通式为Ph_3PCHCHCO_2H(R=Me,Ph,CO_2H,R′=Me)的季膦盐的~1H,^(13)C、^(31)P NMR谱。确定了各种化合物的~1H、^(13)C、^(31)P化学位移值和^(31)P-^(13)C偶合常数.讨论了核磁参数与分子结构的关系.
In this paper , 1H, 13C, and 31P-NMR spectra of 5 bromide phosphonium salts of general formula (Ph3 PCHRCHR CO2H)Br were observed. 1H, 13C, and 31P chemical shifts and 31P-13C coupling constants were determined. The relationship between molecular structure and NMR parameters are discussed.
出处
《波谱学杂志》
CAS
CSCD
1989年第2期143-146,共4页
Chinese Journal of Magnetic Resonance
关键词
溴
羧基
乙基三苯膦
核磁共振
2 - carboxyethyl triphenyl phosphonium bromide
phosphonium salt
NMR.
