Popis: |
Molecules used in the synthesis of illicit drugs, such as amphetamine, methamphetamine and 3,4-methylenedioxymethamphetamine which were studied in order to provide parameters to do their identification. Thus, Raman and Infrared spectra were calculated taking into account the polarizable continuum model and considering different solvents (water, toluene, acetone, chloroform and ethanol) at 298.15 K and 1 atm. The assignment of the normal modes of vibrations of these molecules was made. All calculations were carried out by quantum methods based on DFT with B3LYP hybrid functional and 6-311++g(d. p) basis set available in the Gaussian G03 program package. These informations can be helpful as a forensic data. |