The aromatic character studies on five-membered heterocycles C3H3X2: DFT calculations
محل انتشار: همایش منطقه ای شیمی
سال انتشار: 1389
نوع سند: مقاله کنفرانسی
زبان: انگلیسی
مشاهده: 300
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شناسه ملی سند علمی:
MIAUCHEMISTRY01_161
تاریخ نمایه سازی: 18 اسفند 1397
چکیده مقاله:
Aromatic character is not a directly measurable or computable quantity. Aromatic character is generally evaluated on the basis of energetic, geometric, and magnetic criteria [1]. There is some procedure for the estimation of aromatic stabilization energies (ASE). Magnetic criterion is measured through nuclear independent chemical shifts, NICS calculations [2]. In this work, the aromatic character was discussed for C3H3X2 (X = O, S, Se, Te, NH, PH, AsH and SbH) through the NICS calculations and geometrical parameter which were calculated at B3LYP/6-311++G(3df,2p) level of theory. The correlations between the aromatic character and the stability were investigated for C3H3X2. The results will be presented and discussed.
نویسندگان
E. Vessally
Islamic Azad University, Miyaneh Branch, Miyaneh, Iran
A. Khojasteh
Payame Noor University (PNU), Zanjan, Iran