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A solution and solid state 15N NMR study of hydrogen bonding in a Schiffs base
J Sitkowski1, L Stefaniak, I Wawer
1Institute of Organic Chemistry, Polish Academy of Sciences, Warszawa, Poland.
Solid State Nuclear Magnetic Resonance
|November 1, 1996
Abstract:
The 15N results reveal a difference in the extent of intramolecular hydrogen bond formation exhibited by the Schiffs base, compound 2, in solution and the solid state. Comparison of the 15N shielding changes observed, with those arising from protonation, provides the basis for a quantitative estimate of the strength of the hydrogen bonds formed.