Theoretical investigation of the interaction of uracil and mono hydrated uracil - water complexes with alkali metals
Yazarlar (4)
Reza Ghiasi
Islamic Azad University, Central Tehran Branch, İran
Prof. Dr. Majıd MONAJJEMI Islamic Azad University, Science And Research Branch, İran
Farah Asadian
Islamic Azad University, Central Tehran Branch, İran
Hodar Passdar Islamic Azad University, Science And Research Branch, İran
Makale Türü Özgün Makale (SCOPUS dergilerinde yayınlanan tam makale)
Dergi Adı Journal of Chemical Research
Dergi ISSN 0308-2342
Makale Dili İngilizce Basım Tarihi 01-2004
Cilt / Sayı / Sayfa 0 / 7 / 445–449 DOI 10.3184/0308234042037338
Özet
Quantum chemistry calculations have been applied in order to explore the interaction of alkali metals with oxo groups of uracil. The optimised geometries, harmonic vibrational frequencies and the energies of uracil, metalated uracil, monohydrated uracil and monohydrated metalated uracil have been calculated. The calculations show that interaction of metals with uracil through O3 (UO3) is stronger than the interaction of metals with O1 (UO1). The presence of water stabilises the UO1, UO3 structures. In mono-hydrated uracil the stability of UO3W rather than UO1W is more than for non hydrated spices. Calculations show that after monohydration, the frequency shift of the stretching vibrations of N6-H is related to the atomic number of the metal.
Anahtar Kelimeler
Hydrogen bonding | Metalated uracil | Mono hydrated uracil | Uracil | Vibrational frequencies