Author:
Kalenik Jerzy,Majerz Irena,Sobczyk Lucjan,Grech Eugeniusz,Habeeb Mustafa M. M.
Abstract
The IR and 35Cl NQR spectra of several solid hydrogen bonded adducts of o-chlorobenzoic acids and amines were studied over the broad ΔpKa range. Both IR and NQR spectra yield the indication of the existence of an inversion (critical) ΔpKa range where the proton transfer takes place. The critical point is distinguished by a deep minimum of the position of the gravity centre of the broad protonic band. The mechanism of the transmittance of the charge distribution within the hydrogen bridge on the electric field gradient in the position of quadrupole Cl nuclei attached to the phenyl ring is analysed.
Publisher
Institute of Organic Chemistry & Biochemistry
Cited by
17 articles.
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