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HF and DFT studies and vibrational spectra of 1,2-bis(2-pyridyl) ethylene and its zinc (II) halide complexes
Date
2007-03-11
Author
Ozhamam, Z.
Yurdakul, Murat Hayrettin
Yurdakul, S.
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This work is licensed under a
Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International License
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Ab initio restricted Hartree-Fock and density function theory calculations using BLYP, B3LYP and B3PW91 functionals were carried out to study molecular structure and vibrational spectrum of 1,2-bis(2-pyridyl)ethylene (which is abbreviated as bpe). Comparison of calculated and experimental results indicates the density functional B3LYP and BLYP/6-311G* methods are more accurate in predicting fundamental vibrational frequencies than the scaled other approaches. On the basis of calculated results, assignment of fundamental vibrational modes of bpe was proposed. Complexes of the type Zn(bpe)X-2 [where X = Cl, Br, I] have been studied in the 4000-400 cm(-1) region, and assignments of all the observed bands were made. The analysis of the infrared spectra indicates that there is some structure-spectra correlations.
Subject Keywords
1,2-bis(2-pyridyl)ethylene
,
HF
,
DFT calculations
,
Zinc halide complexes
URI
https://hdl.handle.net/11511/30778
Journal
VIBRATIONAL SPECTROSCOPY
DOI
https://doi.org/10.1016/j.vibspec.2006.04.016
Collections
Graduate School of Natural and Applied Sciences, Article