کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
1233173 1495233 2015 10 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Experimental and computational study on molecular structure and vibrational analysis of an antihyperglycemic biomolecule: Gliclazide
موضوعات مرتبط
مهندسی و علوم پایه شیمی شیمی آنالیزی یا شیمی تجزیه
پیش نمایش صفحه اول مقاله
Experimental and computational study on molecular structure and vibrational analysis of an antihyperglycemic biomolecule: Gliclazide
چکیده انگلیسی


• The FT-IR and Laser-Raman spectra of the title compound were recorded in solid phase.
• The optimized geometry and vibrational frequencies were calculated for the first time.
• The HOMO–LUMO energies and related molecular properties were evaluated.

In present study, the experimental and theoretical harmonic vibrational frequencies of gliclazide molecule have been investigated. The experimental FT-IR (400–4000 cm−1) and Laser-Raman spectra (100–4000 cm−1) of the molecule in the solid phase were recorded. Theoretical vibrational frequencies and geometric parameters (bond lengths and bond angles) have been calculated using ab initio Hartree Fock (HF), density functional theory (B3LYP hybrid function) methods with 6-311++G(d,p) and 6-31G(d,p) basis sets by Gaussian 09W program. The assignments of the vibrational frequencies were performed by potential energy distribution (PED) analysis by using VEDA 4 program. Theoretical optimized geometric parameters and vibrational frequencies have been compared with the corresponding experimental data, and they have been shown to be in a good agreement with each other. Also, the highest occupied molecular orbital (HOMO) and lowest unoccupied molecular orbital (LUMO) energies have been found.

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ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Spectrochimica Acta Part A: Molecular and Biomolecular Spectroscopy - Volume 135, 25 January 2015, Pages 137–146
نویسندگان
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