ISSN:
0009-2940
Keywords:
Periodic acid, protonation of
;
Hexahydroxoiodine(VII) cation
;
Hexahydroxoiodine(VII) hydrogensulfate, bimorphism of
;
Chemistry
;
Inorganic Chemistry
Source:
Wiley InterScience Backfile Collection 1832-2000
Topics:
Chemistry and Pharmacology
Notes:
On the Existence of the Hexahydroxoiodine(VII) Cation - Crystal Growth and Structure Analysis of α- and β-H6IO6HSO4*Periodic acid H5IO6 dissolves at 50°C in 90-97% H2SO4 to give the hexahydroxoiodine(VII) cation H6IO6+. Depending on the concentration of the sulfuric acid, two modifications of H6IO6HSO4 can selectively and reproducibly be precipitated. The crystal structures determinations prove the existence of H6IO6+ in the solid state. The crystal structures and Raman spectra of α-H6IO6HSO4 (1a) and β-H6IO6HSO4 (1b) are discussed and compared. The temperature-dependent behaviour of 1a and 1b is studied by means of DTA, temperature-dependent X-ray powder diffraction, and Raman spectroscopy.
Additional Material:
3 Ill.
Type of Medium:
Electronic Resource
URL:
http://dx.doi.org/10.1002/cber.19931261112
