NMR and natural bond orbital (NBO) calculation of glyoxals: Nano physical parameter investigation
Yazarlar (4)
Prof. Dr. Majıd MONAJJEMI Islamic Azad University, Science And Research Branch, İran
M. Ahmadianarog Islamic Azad University, Science And Research Branch, İran
M. Mahmodi Hashemi
Islamic Azad University, Science And Research Branch, İran
Dr. Öğr. Üyesi Fatemeh MOLLAAMIN Islamic Azad University, Qom Branch, İran
Makale Türü Açık Erişim Özgün Makale (Uluslararası alan indekslerindeki dergilerde yayınlanan tam makale)
Dergi Adı International Journal of Physical Sciences
Dergi ISSN 1992-1950
Dergi Tarandığı Indeksler
Makale Dili İngilizce Basım Tarihi 01-2011
Cilt / Sayı / Sayfa 6 / 36 / 8063–8078 DOI 10.5897/IJPS11.508
Makale Linki http://www.scopus.com/inward/record.url?eid=2-s2.0-84855784149&partnerID=MN8TOARS
Özet
In this article, six theoretical methods have been used for calculation of physical parameters in five derivatives of glyoxals. We calculated physical parameters like atomic charges, energy (Δε), chemical shift anisotropy (δ), asymmetry parameter (η), chemical shift anisotropy (Δσ), dipole moment, isotropic, anisotropic, NMR determinant and distance matrix determinant. In this work, we used Gaussian 98 at NMR and natural bond orbital (NBO) calculation by using HF method with 6-31G, 6-31G*, 6-31+G basis set and B3LYP, BLYP and B3PW91 methods with 6-31G basis set. GIAO magnetic shielding for studied molecules was obtained using Gauss view program. Chemical shift curve was drawn for all of the atoms in each molecule. © 2011 Academic Journals.
Anahtar Kelimeler
Glyoxals | Natural bond orbital (NBO) | NMR | Physical parameter