Introduction to Vibrational Spectroscopy

摘要: A brief introduction to the theory of vibrational spectroscopy is given in this chapter. Molecular vibrations are first described terms harmonic oscillator. The Morse potential energy diagram and concept anharmonicity then introduced. way which Raman spectra generated third section article. factors governing band intensities infrared discussed. In next section, vibration–rotation gases Then shapes widths lines vapor–phase condensed-phase on quantitative considerations, Beer's law parameters such as absorptivity, linear absorption coefficient optical constants, refractive index, index defined. Finally, a polarization radiation given. Keywords: vibrational spectroscopy; vibrational quantum number; infrared spectroscopy; Fourier transform spectroscopy; FT-IR spectrometers; Raman spectroscopy; near-infrared Raman; CCD Raman; bandwidths; anharmonicity; anharmonicity constant; vibration–rotation spectra; rotational number; centrifugal distortion; band shapes; Doppler broadening; collision broadening; absorptivity; linear coefficient; refractive index; index absorption; polarization