V. Ananthanarayanan, “Studies on the Vibrational Spectrum of the SO4 Ion in Crystalline M₂'M''(SO₄)₂·6H₂O(M’= K or NH₄, and M'' = Mg, Zn, Ni, or Co): Observations on the Symmetry of the Sulfate Ion in Crystals,” Journal of Chemical Physics, Vol. 48, No. 2, 1968, pp. 573-581.

has been cited by the following article:

• TITLE: Crystallization in the Three-Component Systems Rb2SO4-MSO4-H2O (M = Mg, Co, Ni, Cu, Zn) at 298 K

  AUTHORS: Veronika Karadjova, Donka Stoilova

  KEYWORDS: Rb2Me(SO4)2·6H2O (Me = Mg, Co, Ni, Cu, Zn); Solubility Diagrams; X-Ray Powder Diffraction; Infrared Spectra; Matrix Infrared Spectroscopy

  JOURNAL NAME: Journal of Crystallization Process and Technology, Vol.3 No.4, October 18, 2013

  ABSTRACT: The crystallization in the three-component systems Rb2SO4-MSO4-H2O (M = Mg, Co, Ni, Cu, Zn) is studied by the method of isothermal decrease of supersaturation. It has been established that isostructural double compounds, Rb2M(SO4)2·6H2O (M = Mg, Co, Ni, Cu, Zn), , crystallize from the ternary solutions within wide concentration ranges. The infrared spectra are discussed with respect to the normal vibrations of the sulfate ions and water molecules. The unit-cell group theoretical treatment of the double salts is presented. The extent of energetic distortions of guest ions (about 2 mol%) matrix-isolated in the respective selenates, (M' = K, Rb, ; M" = Mg, Co, Ni, Cu, Zn), is commented.