The raman spectra of some aromatic sulphonyl Halides

Abstract

The Raman spectra of benzene-, p-chlorobenzene-, p-bromobenzene-, p-methoxybenzene-, and o-, m-, and p-toluene sulphonyl chlorides and fluorides and methylbenzene sulphonate are recorded as well as the infra-red absorption bands of liquid benzene sulphonyl chloride and fluoride between 650 and 3100 cm.^-l. A frequency c. 375 cm.^-1 is characteristic of the S-Cl bond in sulphonyl chlorides and a strong band at c. 1210 cm.^-1 is characteristic of the sulphonyl fluoride group. A Raman band at c. 1080 cm.^-l in the chlorides and c. 1095 cm.^-l in the fluorides appears to be associated with aromatic sulphonyl derivatives. There is such a band at 1094 cm.^-1 in the Raman spectrum of methyl benzene sulphonate.