Theoretical vibrational analysis of monohalogenated phenols.
Harmonic vibrational frequencies of a representative series of X-phenols (X = F, Cl, Br) in ortho, meta and para positions are determined using density functional theory (B3LYP) in conjunction with 6-311 + + G(d,p), 6-311 + + G(2d,2p), and 6-311 + + G(2df,2p) basis sets. Their complete and clear-cut vibrational assignment based on the concept of the potential energy distribution is carried out. Such assignment allows to resolve a number of uncertainties appeared in the previous studies and to propose a new explanation of frequency alterations of particular vibrational modes in this series.
Tishchenko
Oksana
O
Department of Chemistry, University of Leuven, Belgium.
Kryachko
Eugene S
ES
Nguyen
Minh Tho
MT
D003198:Computer Simulation; D006219:Halogens / Q000737:chemistry*; D006860:Hydrogen Bonding; D008956:Models, Chemical; D010636:Phenols / Q000737:chemistry* / Q000145:classification; D013057:Spectrum Analysis
D006219:Halogens; D010636:Phenols