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RELATIVE SIGNS OF THE (31)P-(1)H AND (31)P-C-(1)H NMR COUPLINE CONSTANTS.

Author: George M Whitesides; Jessel Beauchamp; John D Roberts; CALIFORNIA INST OF TECH PASADENA.
Publisher: Ft. Belvoir : Defense Technical Information Center, APR 1963.
Edition/Format:   eBook : English
Database:WorldCat
Summary:
The possibility that terms other than Fermi contact interaction make significant contributions to nuclear spin-spin coupling with heavy nuclei has stimulated considerable interest in the nmr spectra of compounds containing heteroatoms. In particular, relative signs and magnitudes of J sub XCH and J sub XCCH have been reported for ethyl derivatives of several heavy isotopes of spin 1/2. Inorder to understand better  Read more...
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Material Type: Internet resource
Document Type: Internet Resource
All Authors / Contributors: George M Whitesides; Jessel Beauchamp; John D Roberts; CALIFORNIA INST OF TECH PASADENA.
OCLC Number: 227314312
Description: 12 p. ; 23 x 29 cm.

Abstract:

The possibility that terms other than Fermi contact interaction make significant contributions to nuclear spin-spin coupling with heavy nuclei has stimulated considerable interest in the nmr spectra of compounds containing heteroatoms. In particular, relative signs and magnitudes of J sub XCH and J sub XCCH have been reported for ethyl derivatives of several heavy isotopes of spin 1/2. Inorder to understand better the factors responsible for spin couping with a representative heavy nucleus, we have analyzed the spectra of (CH3)3P, (CH3)2PH and (CH3)PH2 and have obtained relative signs and magnitudes of J sub PH and J sub PCH.

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