AB-INITIO THEORETICAL AND MATRIX-ISOLATION EXPERIMENTAL STUDIES OF HYDROGEN-BONDING - EVIDENCE OF A DRAMATIC EFFECT OF THE MATRIX ON THE STRUCTURE AND VIBRATIONAL-SPECTRUM OF HBR-3,5-DICHLOROPYRIDINE
Je. Delbene et al., AB-INITIO THEORETICAL AND MATRIX-ISOLATION EXPERIMENTAL STUDIES OF HYDROGEN-BONDING - EVIDENCE OF A DRAMATIC EFFECT OF THE MATRIX ON THE STRUCTURE AND VIBRATIONAL-SPECTRUM OF HBR-3,5-DICHLOROPYRIDINE, Chemical physics letters, 264(1-2), 1997, pp. 109-112
Ab initio calculations at the MP2/6-31 + G(d,p) level of theory have b
een carried out to determine the structure and vibrational spectrum of
two hydrogen-bonded complexes, HBr:3,5-dichloropyridine and HBr:3,5-d
ichloropyridine:2Ne. The presence of the two Ne atoms leads to dramati
c structural and spectral changes. The computed HBr:3,5-dichloropyridi
ne:2Ne spectrum exhibits strong low-frequency bands, in agreement with
the experimental spectrum of HBr:3,5-dichloropyridine obtained in an
Ar matrix.