Thumbnail
Access Restriction
Open

Author Tiers, G. V. D.
Sponsorship USDOE
Source United States Department of Energy Office of Scientific and Technical Information
Content type Text
Language English
Subject Keyword CHEMISTRY ♦ CARBON 12 ♦ CARBON 13 ♦ CHLORINE COMPOUNDS ♦ DEUTERIUM ♦ FLUORINE ♦ IODINE COMPOUNDS ♦ ISOTOPE EFFECTS ♦ ISOTOPES ♦ METHYL RADICALS ♦ NUCLEAR MAGNETIC RESONANCE ♦ PROTONS ♦ SHIELDING ♦ SILICON COMPOUNDS ♦ SPECTROSCOPY ♦ SPIN
Abstract The nuclear spin resonance shielding of C-H was determined in (CH/sub 3/ )/sub 4/Si, CH/sub 3/I, CH/sub 2/Cl/sub 2/, and CHCl/sub 3/ f or the isotopes C/ sup 12/ and C/sup 13/. The difference in shielding for these isotopes, T/sub 13/ - T/sub 12/, was +42, +12, +42, and +59 x 10/sup -4/ ppm for the respective compounds. This difference is of the same sign but only about 1/40 as large as the corresponding effect on fluorine. This factor, 1/40, has also been observed for the deuterium isotope effect on proton and fluorine shieldings. (D.L.C.)
ISSN 00223654
Educational Use Research
Learning Resource Type Article
Publisher Date 1960-03-01
Publisher Department Minnesota Mining & Mfg. Co., St. Paul
Journal Journal of Physical Chemistry
Volume Number 64
Organization Minnesota Mining & Mfg. Co., St. Paul


Open content in new tab

   Open content in new tab