eng Echenique, Pablo Conformational energy calculations on the dipeptide formyl-L-alanyl-amide, using the quantum chemical RHF and MP2 with a range of Pople basis sets alanine dipeptide quantum chemistry conformational energies RHF MP2 Pople basis sets This corresponds to a series of approximately 40,000 quantum chemical calculations on 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 using the methods RHF and MP2, and a large number of Pople basis sets ranging from 3-21G to 6-311++G(2df,2pd). These methods are combined using the same one for the geometry optimization and the energy calculation (homolevel) or different ones (heterolevel). The dataset contains 274 grids, each one corresponding to a different homo- or heterolevel. 2011-09-07T09:47:46Z http://zaguan.unizar.es/record/6517 info:eu-repo/semantics/publishedVersion Zaragoza Researchers Students Librarians