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A Carbon-13 and Lithium-6 NMR Study of Alkyllithium Compounds

A variable temperature 13C and 6Li NMR study has been conducted for 6Li-enriched ethyl-, n-propyl-, isopropyl-, n-butyl-, isobutyl-, t-butyl--, isopentyl-, 2-ethylbutyl-, and n-hexyllithium in cyclopentane. Significant differences in the 13C NMR parameters are observed as a function of the alkyl group and temperature. These changes are compared to the 6Li spectra and explained in terms of the aggregates present. 13C-6Li coupling is readily observed in both the 13 6 C and Li spectra of compounds which contain branching at either the alpha or beta carbons of the alkyl group. This coupling has been used to identify the aggregates present in solution and to identify the fluxional behavior of these aggregates.

Identiferoai:union.ndltd.org:unt.edu/info:ark/67531/metadc504219
Date12 1900
CreatorsJensen, Randy M.
ContributorsThomas, Ruthanne D., Jones, Paul R.
PublisherNorth Texas State University
Source SetsUniversity of North Texas
LanguageEnglish
Detected LanguageEnglish
TypeThesis or Dissertation
Formatvi, 75 leaves: ill., Text
RightsPublic, Jensen, Randy M., Copyright, Copyright is held by the author, unless otherwise noted. All rights reserved.

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