In this theoretical and experimental study, the geometric parameters (bond lengths and ligand angles), vibrational frequencies, 1H-NMR and 13C-NMR spectral values and nonlinear optical (NLO) properties of the molecule of 2-(3-hydroxy-4-methoxybenzylideneamino)-5-mercapto-1,3,4-thiadiazole have been carried out. Firstly, the 2- (3-hydroxy-4-methoxybenzylideneamino) -5-mercapto-1,3,4-thiadiazole molecule was optimized using the B3LYP/HF 6-311G+(d,p) basic sets. The 1H-NMR and 13C-NMR chemical shift values of the GIAO method were calculated using the Gaussian G09W program package in DMSO phase starting from the optimized structure. Molecular vibration wave numbers were examined by using the basic set of 6-311G+(d,p) according to density function theories using HF and B3LYP standard. FT-IR (100-4000 cm-1) vibration frequencies of the relevant compound were recorded. Vibration frequencies obtained in B3LYP and HF methods were compared with experimental values and it has been observed that the closest results to experimental values were B3LYP data. Additionally, electronic properties such as HOMO and LUMO energies, molecular electrostatic potential, electron affinity, ionization potential, molecular softness, molecular stiffness, electronegativity, dipole moments and total energies of the synthesized new compound were calculated using the same set and methods.
Primary Language | Turkish |
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Journal Section | Kimya / Chemistry |
Authors | |
Publication Date | December 30, 2018 |
Submission Date | May 23, 2018 |
Acceptance Date | September 5, 2018 |
Published in Issue | Year 2018 Volume: 8 Issue: 4 |