J. A. Campbell, D. P. Ryan and L. M. Simpson, “Interionic Forces in Crystal—II. Infrared Spectra of SO4 Groups and ‘Octahedrally’ Coordinated Water in Some Alums, Tutton Salts, and the Double Salts Obtained by Dehydrating Them,” Spectrochimica Acta, Vol. 26A, No. 12, 1970, pp. 2351-2361.

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.