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'Supercooled solution' in keywords Facet   Publication Year 1992  [X]
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1992[X]
1Author    Toshiyuki Takamuku, Kazumasa Yoshikai, Toshio Yamaguchi, Hisanobu WakitaRequires cookie*
 Title    Structure of Supercooled Aqueous Zinc(II) Bromide Solutions by Raman and X-Ray Scattering Methods  
 Abstract    The structure of aqueous zinc(II) bromide solutions with [H 2 0]/[ZnBr 2 ] molar ratios 5 and 10 in the supercooled state and at ambient temperature has been investigated by Raman spectroscopy and X-ray scattering. Raman spectra of glassy solutions have also been measured for comparison. The Raman and X-ray data suggest that tetrabromo and hexaaqua zinc(II) complexes are favoured in the supercooled and glassy state, while dibromo-and tribromozinc(II) complexes are formed as main species in the solutions at ambient temperature. Probably the reactions 2 [ZnBr 2 (OH 2)] + 2H 2 0 [ZnBr 4 ] 2 ~ + [Zn(OH 2) 6 ] 2 + 4[ZnBr 3 (OH 2)]~ + 2H 2 0 -> 3[ZnBr 4 ] 2 ~ + [Zn(OH 2) 6 ] 2 + occur in the supercooled and glassy solutions. These equilibrium shifts are discussed. 
  Reference    Z. Naturforsch. 47a, 841—848 (1992); received April 24 1992 
  Published    1992 
  Keywords    Supercooled solution, Zinc(II) bromide, Raman spectroscopy, X-ray diffraction, Structure 
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 TEI-XML for    default:Reihe_A/47/ZNA-1992-47a-0841.pdf 
 Identifier    ZNA-1992-47a-0841 
 Volume    47