¹³C NMR Measurement of Hydrogen Bonding Effects for Benzylic Alcohol- Φ Or N Base Complexes : Relationship Between the Oh Stretching Frequencies and the Chemical Shifts of Proton Donor Groups

M. C. Moreau Descoings Laboratoire de Chimie Organique Physique, U F R des Sciences Universit.6 de Picardie, 33 rue Saint-Leu, 80039, AMIENS-cédex, FRANCE

F. Halabi Laboratoire de Chimie Organique Physique, U F R des Sciences Universit.6 de Picardie, 33 rue Saint-Leu, 80039, AMIENS-cédex, FRANCE

G. Goethals Laboratoire de Chimie Organique Physique, U F R des Sciences Universit.6 de Picardie, 33 rue Saint-Leu, 80039, AMIENS-cédex, FRANCE

J. P. Séguin Laboratoire de Chimie Organique Physique, U F R des Sciences Universit.6 de Picardie, 33 rue Saint-Leu, 80039, AMIENS-cédex, FRANCE

J. P. Doucet ITODYS, 1 rue Guy de la Brusse, 75005, PARIS, FRANCE

Abstract

The carbon shifts induced by hydrogen bonding have been measured for complexes between benzylic alcohol and Φ or n bases (from benzene to collidine) of largely varied strengths. Linear relationships are obtained between corrected induced shifts and the IR frequency shifts Δν_OH but reverse slopes result for the C-1 and C-α carbons of benzylic alcohol.

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¹³C NMR Measurement of Hydrogen Bonding Effects for Benzylic Alcohol- Φ Or N Base Complexes : Relationship Between the Oh Stretching Frequencies and the Chemical Shifts of Proton Donor Groups

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13C NMR Measurement of Hydrogen Bonding Effects for Benzylic Alcohol- Φ Or N Base Complexes : Relationship Between the Oh Stretching Frequencies and the Chemical Shifts of Proton Donor Groups

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¹³C NMR Measurement of Hydrogen Bonding Effects for Benzylic Alcohol- Φ Or N Base Complexes : Relationship Between the Oh Stretching Frequencies and the Chemical Shifts of Proton Donor Groups