An algebraic model of coupled anharmonic oscillators is introduced, capable of describing the stretching vibrations of medium-size molecules. This model is applied to the calculation of O-H vibrational modes of water molecules. In this paper, we have reported the stretching and bending vibrational energy levels of water molecule using the algebraic and density functional theory method. The results obtained by theoretical models show good agreement with the experimental values.
Iron doped mixed alkali cadmium phosphate (LiNaCdP) glasses of the following chemical composition xLi_2O + (20-x)Na_2O + 20CdO + 59.5P_2O_5 + 0.5Fe_2O_3 (5
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