A new fluorescence band at about 1930 cm−1 has been observed in the FT-Raman spectra of some bioceramics. While a fluorescence band atabout 760 cm−1 has been already reported in the FT-Raman spectra of hydroxyapatite and related calcium phosphates...

at the B3LYP/6-311++G** level. The calculated vibrational frequencies were compared with the FT-IR and FT-Raman band frequencies. Excellent agreement was observed between theoretical and experimental results. The geometries and vibrational frequencies of Ca...