Introduction of quantum chemistry (classical mechanic of motions (linear, rotational, harmonic oscillation; calculate energy and momentum of the object in different motions, and to describe the phenomena indicating the quantization of energy (black body radiation, heat capacity, photoelectric effect, wave-particle duality of electromagnetic radiation); The wave function of particles in the box 1D, 2D, and 3D, (describe the phenomenon of tunneling in chemical reactions and events), The principle of translation in calculating energy in the field and space along with the application of chemistry; The concept of vibrational motion to explain harmonic oscillations; The concept of energy to calculate vibrational energy; The concept of rotationalUploading, please wait... in spectroscopy  (the origin of electronic, vibrational and rotational spectra and relate the spectroscopic phenomenon with the quantized energy levels and atomic/molecular properties), and to describe the spectra for simple organic and inorganic compounds qualitatively and extract useful chemical information such as bonding and reactivity from spectroscopic data).