35Cl NQR Spectra of Arylsulphonamides, N-Chloro and N,N-Dichloro Arylsulphonamides

Abstract

The effect of substitution in the phenyl ring on the γ (35Cl NQR) of N-Cl bonds of the N-chloroand N,N-dichloro-arylsulphonamides has been studied and correlated. The correlation of 35Cl NQR spectra of both the N-chloro and N,N-dichloro-arylsulphonamides is exceedingly good, although there was no systematic variation in the frequencies with substituents in the phenyl ring. The effect of substitution on the C-35Cl NQR of the phenyl ring has also been correlated. The deviation here is also not systematic due to the fact that the chemically equivalent chlorine atoms may exhibit different NQR frequencies due to crystal field effect. Finally, γ (C - 35Cl NQR) of all the 4-chloro-1-substitutedbenzenes have been correlated through the line diagram.