Idioma: Inglés
Resumen: This corresponds to one single system, the model dipeptide HCO-L-Ala-NH2, with 16 atoms and no charge. The conformational space of this molecule is scanned by defining a regular 12x12 grid from -165º to 165º in 30º steps in the 2D space spanned by its Ramachandran angles phi and psi. The energy at each of these 144-points set is calculated using density functional theory with the B3LYP and a range of Dunning correlation consistent basis sets ranging from cc-pVDZ to cc-pVQZ.
Palabra(s) clave: alanine dipeptide ;
quantum chemistry ;
conformational energies ;
DFT, B3LYP ;
B3LYP
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