The course examines changes in energy states of molecules that proced in the interaction with electromagnetic radiation due to the phenomenon of absorption, emission or scattering. In doing so, gives us direct information on the internal energy of the quantum states of the molecules. Each molecule gives the characteristic spectra, which contain a variety of information on the composition, structure and the energy properties. Spectrum of the moleculs may be used in the quantitative and qualitative analysis by applying different spectral devices.
The course concerning with the molecular types of spectra (rotational, vibrational, Raman, electronic, the luminescence spectra, NMR and ESR) through explaining the mechanism of their formation. Studying the change in the energy state of molecules when they interact with electromagnetic radiation due to the occurrence of the emission, absorption or scattering. In this course the distribution of the molecular spectra is explained by the area of their occurrence in the spectrum of electromagnetic radiation and the intensity of their crossing points are explaining. Describes the use of the molecular spectra in the quantitative analysis, for they identification and to determine the structural characteristics of the molecules. It also describes apparatus, which generate the corresponding spectra, and their identification is performed.