Study on Spectra and Mg-O Bond-Length of NaMg3Al(MoO4)5: Cr3+ Crystal at Low Temperature
Considering the crystal field parameter Dq and average covalent factor N, the energy levels of NaMg3Al(MoO4)5: Cr3+ crystal at 295 K are calculated by diagonalizing the energy matrix of 3d3. At low temperature 9 K the bond length of Mg-O is calculated by adjusting the value to fit the spectra of Mg site. The value of Mg-O bond length is 2.0528 Å. The equation relationship of Mg-O between bond length and temperature is achieved.The calculated values are consistent with the experimental spectra.
Y. Huang and F. Miao, "Study on Spectra and Mg-O Bond-Length of NaMg3Al(MoO4)5: Cr3+ Crystal at Low Temperature", Advanced Materials Research, Vols. 560-561, pp. 651-654, 2012