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Ab initio study and hydrogen bonding calculations of nitrogen and carbon chemical shifts in serine-water complexes  
Yazarlar
Dr. Öğr. Üyesi Fatemeh MOLLAAMIN Dr. Öğr. Üyesi Fatemeh MOLLAAMIN
Kastamonu Üniversitesi, Türkiye
Özet
The hydrogen bonding (HB) effects on the NMR shielding of selected atoms in a few Ser-nH 2 O complexes have been investigated with quantum mechanical calculations of the 15 N and 13 C tensors. Interaction with water molecules causes important changes in geometry and electronic structure of serine. Chemical shift calculations, geometry optimization and energies have been performed with ab ini-tio method at HF/6-31G* and HF/6-31G** levels with magnetic properties of the gauge-including atomic orbital method. There is evidence that intermolecular effects are important in determining the 15 N chemical shifts of free amino acid residue, to assign principal axes of the tensors, and some systematic trends appear from the analysis of the calculated values.
Anahtar Kelimeler
Makale Türü Özgün Makale
Makale Alt Türü SSCI, AHCI, SCI, SCI-Exp dergilerinde yayımlanan tam makale
Dergi Adı Journal of the Mexican Chemical Society
Dergi Tarandığı Indeksler
Dergi Grubu Q4
Makale Dili İngilizce
Basım Tarihi 01-2005
Cilt No 49
Sayı 4
Sayfalar 344 / 352
BM Sürdürülebilir Kalkınma Amaçları
Atıf Sayıları
Google Scholar 13

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