Key points are not available for this paper at this time.
Far-infrared reflection spectra of a polycrystalline sample of monoclinic CuO were measured in the frequency range from 30 to 700 cm^-1 at temperatures between 10 and 300 K. The six observed lattice vibrational modes at 147, 161, 321, 478, 533, and 587 cm^-1 (300 K) were assigned by comparison with those of PdO using Cartesian symmetry coordinates. Normal coordinates were calculated within a short-range valence-force-field model. A broad mode at about 414 cm^-1 at 300 K, whose intensity changes drastically as the temperature is lowered, may be explained in terms of magnetic ordering in CuO.
Kliche et al. (Sat,) studied this question.
Synapse has enriched 5 closely related papers on similar clinical questions. Consider them for comparative context: