Accession Number : AD0425978

Title :   LONG-RANGE PROTON SPIN-SPIN COUPLING IN DIMETHYL SULFONE,

Corporate Author : CALIFORNIA INST OF TECH PASADENA GATES AND CRELLIN LABS OF CHEMISTRY

Personal Author(s) : Whitesides, George M. ; Roberts, John D.

Report Date : NOV 1963

Pagination or Media Count : 4

Abstract : A wide variety of chemical and spectral data suggest that a sulfone group is capable of interaction with an adjacent unsaturated center; however, it seems possible that the mode of this interaction may be significantly different from that of conjugation between first-row elements. To provide evidence pertinent to the problem of conjugation in sulfones, the ability of several oxygen-and sulfur-containing groups to transmit proton spin-spin couplings were compared. Similarity of the C-H coupling constants for dimethyl sulfide and dimethyl sulfone provides evidence that the sulfone is best represented by a structure with predominantly covalent sulfur-oxygen bonds. (Author)

Descriptors :   (*ORGANIC SULFUR COMPOUNDS, MOLECULAR STRUCTURE), (*MOLECULAR STRUCTURE, ORGANIC SULFUR COMPOUNDS), (*CHEMICAL BONDS, ORGANIC SULFUR COMPOUNDS), PROTONS, SPINNING(MOTION), ATOMIC ORBITALS, MOLECULAR SPECTROSCOPY, ALKANES, NUCLEAR SPINS.

Distribution Statement : APPROVED FOR PUBLIC RELEASE