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溴代α—羧基—乙基三苯膦的NMR谱与结构
THE NMR SPECTRA AND STRUCTURE OF 2-CARBOXYETHYL TRIPHENYL PHOSPHONIUM BROMIDE
【摘要】 本文给出了五种通式为Ph3PCHCHCO2H(R=Me,Ph,CO2H,R′=Me)的季膦盐的1H,13C、31P NMR谱。确定了各种化合物的1H、13C、31P化学位移值和31P-13C偶合常数.讨论了核磁参数与分子结构的关系.
【Abstract】 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.
【关键词】 溴代α-羧基-乙基三苯膦;
季膦盐;
NMR;
【Key words】 2 - carboxyethyl triphenyl phosphonium bromide; phosphonium salt; NMR.;
【Key words】 2 - carboxyethyl triphenyl phosphonium bromide; phosphonium salt; NMR.;
- 【文献出处】 波谱学杂志 ,Chinese Journal of Magnetic Resonance , 编辑部邮箱 ,1989年02期
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