Ab initio theoretical studies of relative stabilities and IR spectrum of 5-methylcytosine tautomers
Yazarlar (3)
Lida Ghassemzadeh Islamic Azad University, Science And Research Branch, İran
Prof. Dr. Majıd MONAJJEMI Islamic Azad University, Science And Research Branch, İran
Karim Zare Islamic Azad University, Science And Research Branch, İran
Makale Türü Açık Erişim Özgün Makale (ESCI dergilerinde yayınlanan tam makale)
Dergi Adı Journal of Chemical Research Part S
Dergi ISSN 0308-2342
Makale Dili İngilizce Basım Tarihi 04-2003
Cilt / Sayı / Sayfa 0 / 4 / 195–199 DOI 10.3184/030823403103173705
Makale Linki http://www.scopus.com/inward/record.url?eid=2-s2.0-0042734750&partnerID=MN8TOARS
Özet
The structure and relative energies of the tautomers of 5-methylcytosine in the gasphase and in different solvents are predicted using MP2 and density functional theory methods. The order of stability for these tautomers is C3>C1>C2>C4>C5>C6 calculated by MP2 and C1>C3>C2>C4>C5>C6 calculated by the B3LYP method. Relative energy calculations are performed in wide range of solvent dielectrics and in all solvents the oxo-amino C1 is predicted as the most stable tautomer. The infrared spectra of two dominant tautomers are calculated in the gas phase using HF and density functional theory. Good agreement between calculated (DFT) and experimental harmonic vibrational frequencies is found.
Anahtar Kelimeler
5-methylcytosine tautomers | Physico-chemical properties
BM Sürdürülebilir Kalkınma Amaçları
Atıf Sayıları
Web of Science 7
Scopus 24
Ab initio theoretical studies of relative stabilities and IR spectrum of 5-methylcytosine tautomers

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