Zobrazeno 1 - 10
of 22
pro vyhledávání: '"Mansoureh Zahedi-Tabrizi"'
Publikováno v:
Monatshefte für Chemie - Chemical Monthly. 150:1267-1274
Intramolecular and Intermolecular hydrogen bonds of capecitabine, a pharmaceutically active substance in the group of fluorinated cytosines, have been investigated by density functional calculations at B3LYP level of theory using some Pople-style bas
Publikováno v:
Proceedings of the 2020 International Symposium on Molecular Spectroscopy.
Publikováno v:
Chemical Physics. 538:110907
In this work, a feasible method has been introduced for investigating the proton tunneling frequency in Naphthazarin (NZ). A two-dimensional potential energy surface which couples OH stretching with in-plane bending modes has been computed for a firm
Publikováno v:
Monatshefte für Chemie - Chemical Monthly. 146:1837-1843
A computational study has been performed at the B3LYP/6-31++G** level to evidence hydrogen bonding interactions in the real crystalline structures of salicylsalicylic acid (salsalate) via chemical shielding tensors at the 17O nuclei. Real crystalline
Autor:
Farideh Badalkhani-Khamseh, Reihaneh Ghomi, Mansoureh Zahedi-Tabrizi, Sayyed Faramarz Tayyari, Fatemeh Afshar-Qahremani
Publikováno v:
Journal of Chemical Sciences. 126:919-929
The intramolecular hydrogen bonding (IHB) in a series of 3-, 4- and 5-substituted 2-hydroxybenzophenone (HBP) is studied using density functional theory calculations. All calculations are performed at the B3LYP level, using 6-311 ++G** basis set. To
Publikováno v:
Journal of Molecular Structure. 1038:177-187
1,2-Bis (monochloroacetyl) cyclopentadiene (MCACP) was synthesized and its molecular structure, intramolecular hydrogen bonding, and vibrational frequencies were investigated by means of density functional theory (DFT) calculations, NMR, and IR spect
Publikováno v:
Journal of Molecular Structure. 1036:151-160
Molecular structure, intramolecular hydrogen bond (IHB), 1 H and 13 C chemical shifts, and vibrational assignment of newly prepared 1,2-bis (dichloroacetyl) cyclopentadiene (DCACP) , have been investigated by means of density functional theory (DFT)
Publikováno v:
Journal of the Iranian Chemical Society. 10:685-694
A density functional theory (DFT) study-based method B3LYP/6-311++G** was carried out to investigate the methyl groups substitution effect on the structure and the strength of intramolecular hydrogen bonding in naphthazarin (NZ) (5,8-dihydroxy-1,4-na
Publikováno v:
Computational and Theoretical Chemistry. 977:195-200
The hydrogen bond strength, geometry optimization and 1H NMR for naphthazarin (NZ) and its chlorine substitutions have been calculated at the B3LYP/6-31G** theoretical level. The calculated chemical shifts of the chelated proton for all molecules, us
Autor:
Yan Alexander Wang, Sayyed Faramarz Tayyari, Steven S. Hepperle, Hossein Azizi-Toupkanloo, Mansoureh Zahedi-Tabrizi
Publikováno v:
Chemical Physics. 368:62-65
A simple, practical method for treating the proton tunneling in 2-nitromalonaldehyde (NO2MA) was used. A two-dimensional potential energy surface (PES) function, which couples OH stretching and in-plane bending modes, has been constructed for motions