In this paper, in order to determine the stable conformers of (1-naphthylmethylidene)
isonicotinohydrazide molecule (I), the conformational analysis of the molecule studied was investigated by Density
Functional Theory (DFT/B3LYP) levels of theory using 6-311++G (d,p) basis set. The two stable states conformers
(C-I and C-II) of the this molecule have been found and these conformers were optimized HF/ 6-311++G(d,p)
and B3LYP/ 6-311++G(d,p) levels of theory and basis set. The computational results have shown that the most
stable conformer of molekülünün I was as the C-I form. The dipole moment (µ), polarizability (α) and first order
hyperpolarizability (β), the highest occupied molecular orbital energies (), the lowest unoccupied molecular orbital
energies (ELUMO) and energy gap () of C-I and C-II conformers have been calculated by using 6-311++G (d, p)
basis set for both models at the ground state. The hardness (η) and electronegativity (χ) parameters were determined
taking into account these energy values. Besides, 1H-NMR and 13C-NMR chemical shift values according to the
method GIAO by obtained the optimized structure were calculated using B3LYP/311++G (2d,p) and HF/6-31G
levels of theory. The dipole moment values for C-I and C-II conformers are calculated at 2.05 and 2.32 with
DFT/B3LYP level of the theory 6-311++G (d, p) basis set and at the HF/6-311++G(d,p) 1.94, and 2.32 Debye,
respectively. The structural parameters of molekülünün I compared with data in the literature.
DFT/B3LYP HF hyperpolarizability (1-naphthylmethylidene)isonicotinohydrazide polarizability
Primary Language | Turkish |
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Subjects | Chemical Engineering |
Journal Section | Kimya / Chemistry |
Authors | |
Publication Date | June 30, 2018 |
Submission Date | August 21, 2017 |
Acceptance Date | December 26, 2017 |
Published in Issue | Year 2018 |