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Spectroscopy Letters
An International Journal for Rapid Communication
Volume 22, 1989 - Issue 8
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Original Articles

Hydrogen Bonding Effects on Electron Population and 13C Chemical Shift of Base: Alcohol Pyridine Complexes

, , , &
Pages 973-991 | Received 08 May 1989, Accepted 09 Jun 1989, Published online: 24 Oct 2006
 

Abstract

The carbon chemical shifts of pyridine associated to various aliphatic and aromatic alcohols are measured. Actual effects of hydrogen bonding formation on 13c shifts, have been characterized by evaluating in first, anisotropy and non specific medium effects. Linear relationships are obtained between 13C shifts and the IR frequency shifts. Positive slopes are observed for C-β and C-γ in agreement with the electron population change, but a reverse slope results for C-α carbon.

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