Spectra of Sulphonyl derivatives. III. Interaction with attached groups

Abstract

The Raman and infra-red spectra of 2-propene-1-sulphonyl chloride, 1-propene-1-sulphonyl chloride, 2-phenyl ethane and 2-phenyl ethane sulphonyl chlorides, and the infra-red spectrum of sodium 2-phenyl ethane sulphonate have been recorded. The constancy of sulphonyl, S-Cl, C-S, and C=C vibrations indicates the absence of conjugation in the ground state between C=C and S=O. The ultraviolet spectra of the styrene derivatives indicate a strong electronic interaction in the excited state. The 1-propene-1-sulphonyl chloride prepared by the method of Lambert and Rose (1949) is shown to be the trans-compound. �� The constancy of the symmetric and asymmetric frequencies of the SO3 group in the ions CH3S03-, NH2SO3-, and HOS03- also shows that there is no strong inter- action between the lone pairs of electrons on the nitrogen or oxygen and the sulphur-oxygen π-bond system.

Atherogenesis in swine fed several types of lipid‐cholesterol diets

“…Another aliquot was extracted for total lipid according to the method of Sperry and Brand (14). Total lipid was separated into three fractions by silicic acid column chromatography (15). These fractions were: A, cholesterol esters; B, triacylglycerols, free fatty acids, and free cholesterol; and C, phospholipids.…”

The Expansion of the Sulfur Outer Shell.

“…4. Sulfonyl halides Raman and infrared spectra for certain saturated and unsaturated sulfonyl chlorides indicate lack of conjugation between the olefinic and the sulfur-oxygen bonds (80). Ultraviolet light absorption studies indicate that conjugation occurs in an electronic excited state of 2-phenylethylene-1 -sulfonjd chloride (80).…”

Solvolysis of Sulphonyl Halides. IV. The Hydrolysis of Some Substituted Aliphatic Sulphonyl Chlorides and of Ethanesulphonyl Bromide in Aqueous Dioxan

“…As we did not accept his reasoning, other evidence on this point was desirable. The third pair, trans-1-propene-1sulphonyl chloride and 2-propene-1-sulphonyl chloride was selected because it had previously been shown that there was no evidence for conjugation in the ground state of the former compound (Freeman and Hambly 1957). On the other hand, conjugation can occur in similar molecules in their electronically excited states and such states may make a contribution to the bonding in the activated complex.…”

“…The samples of 1-propene-1-sulphonyl chloride and 2-propene-1-sulphonyl chloride were available from a previous spectroscopic study (Freeman and Hambly 1957). They were redistilled before use.…”