Gül KOTAN, Önder ALBAYRAK, Haydar YÜKSEK

7075

3-Metil-4-(3-metil-2-tiyenilmetilenamino)-4,5-dihidro-1H-1,2,4- triazol-5-one molekülünün elektronik, geometrik ve spektroskopik özelliklerinin incelenmesi

3-Metil-4-(3-metil-2-tiyenilmetilenamino)-4,5-dihidro-1H-1,2,4-triazol-5-on molekülü HF/ B3LYP6-311G(d,p) temel setleri kullanılarak optimize edilmiştir. Sonra, Gaussian 09W paket programı kullanılarak GIAO metoduna göre 1 H- ve 13C-NMR isotropik kayma değerleri hesaplanmıştır. Teorik ve deneysel değerler δ exp=a+b. δ calc. eşitliğine göre grafiğe geçirilmiştir. Standart hata değerleri a, b sabitlerinin regresyon katsayısı ile Sigmaplot programı kullanılarak bulunmuştur. Ayrıca, Veda 4f programı teorik olarak IR verilerini belirlemede kullanılmıştır. DFT ve HF metodları ile elde edilen veriler teorik infrared spectrumu çizilmesinde kullanılmıştır. Ek olarak, geometrik özellikler (bağ uzunlukları ve açıları, mulliken atomik yükleri), elektronik özellikler (ELUMO-EHOMO kapasitesi (ΔEg), elektronegatiflik (χ), elektron yoğunluğu (A), global sertlik (η), yumuşaklık (σ), iyonizasyon potansiyeli (I), molekülün toplam enerjisi, dipol moment), termodinamik özellikleri, HOMO ve LUMO, Gaussian 09W paket programı kullanılarak hesaplanmıştır.
Anahtar Kelimeler:

Gaussian G09W, Veda4f, HOMO-LUMO, GIAO, 1, 2, 4-triazol-5-on

Investigation of Electronic, Geometric and Spectroscopic Properties of 3-Methyl-4-(3-methyl-2-thienylmethyleneamino)-4,5-dihydro-1H-1,2,4-triazol-5-one Molecule

3-Methyl-4-(3-methyl-2-thienylmethyleneamino)-4,5-dihydro-1H-1,2,4-triazol-5-one molecule was optimized by using the DFT/6311G (d,p) and HF/6311G (d,p) basis sets. Afterwards, 1H-NMR and 13C-NMR isotropic shift values were calculated by the method of GIAO using the program package Gaussian G09W. Theoretical and experimental values were inserted into the graphic according to equitation of δ exp=a+b. δ calc. The standard error values were found via SigmaPlot program with regression coefficient of a and b constants. Furthermore, the veda4f program was used in defining of IR data theoretically. The data obtained  with using HF and DFT method are formed using theoretical infrared spectrum. In addition, geometric properties (bond lengths and angles), electronic properties (ELUMO-EHOMO (ΔEg), ionization potential (I), electronegativity (χ), global hardness (η), electron affinity (A), softness (σ), dipole moment, mulliken atomic charges, total energy of the molecule), thermodynamics properties, HOMO and LUMO, have been calculated by using Gaussian 09W program.
Keywords:

Gaussian G09W, Veda4f, HOMO-LUMO, GIAO,

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Karadeniz Chemical Science and Technology-Cover
  • Başlangıç: 2017
  • Yayıncı: KCST Founding Board
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