# THE HYPER-RAMAN SPECTRUM OF THE LATTICE MODES OF $NH_{4} Cl$.

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 Title: THE HYPER-RAMAN SPECTRUM OF THE LATTICE MODES OF $NH_{4} Cl$. Creators: Maker, P. D.; Savage, Chandra Issue Date: 1969 Publisher: Ohio State University Abstract: Using a pulsed ruby laser source and electronic data accumulation, the lattice mode, inclastic harmonic light scattering spectrum of $NH_{2}Cl$ has been measured, both at room temperature and below its phase transition temperature of $-30^{\circ} C$. The libration band, both Raman and IR forbidden, is active in this spectrum, and is observed at $375 cm^{-1}$. In addition, the LO band is seen, at $280 cm^{-1}$. In the low temperature, ordered phase, a strong broad band centered at $100 cm^{-1}$ is found, but not identified. Description: Author Institution: Scientific Research Staff, Ford Motor Company URI: http://hdl.handle.net/1811/15853 Other Identifiers: 1969-T-1