1-piperidineacetic acid;
N-methylpiperidine betaine;
FTIR;
H-1 and C-13 NMR;
D O I:
10.1016/S0022-2860(02)00689-0
中图分类号:
O64 [物理化学(理论化学)、化学物理学];
学科分类号:
070304 ;
081704 ;
摘要:
Syntheses of 1:1 complexes of 1-piperidineacetic acid (PAA) and N-methylpiperidine betaine (MPH) with HCl, HBr, HI, HNO3, HClO4, HBF4 and their H-1 and C-13 NMR spectra in D2O and powdered FTIR spectra are described. The difference between the spectra of theses two series of complexes are discussed and analysed in order to determine the effect of the N-H replacement by N-CH3 group. (C) 2003 Elsevier Science B.V. All rights reserved.