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Zur Existenz des Hexahydroxoperiodonium‐Ions — Kristallzüchtung und Strukturanalyse von α‐ und β‐H 6 IO 6 HSO 4
Author(s) -
Kraft Thorsten,
Jansen Martin
Publication year - 1993
Publication title -
chemische berichte
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.667
H-Index - 136
eISSN - 1099-0682
pISSN - 0009-2940
DOI - 10.1002/cber.19931261112
Subject(s) - chemistry , raman spectroscopy , crystallography , sulfuric acid , crystal structure , crystal (programming language) , ion , solid state , x ray crystallography , single crystal , diffraction , inorganic chemistry , organic chemistry , programming language , physics , computer science , optics
On the Existence of the Hexahydroxoiodine(VII) Cation – Crystal Growth and Structure Analysis of α‐ and β‐H 6 IO 6 HSO 4 * Periodic acid H 5 IO 6 dissolves at 50°C in 90–97% H 2 SO 4 to give the hexahydroxoiodine(VII) cation H 6 IO 6 + . Depending on the concentration of the sulfuric acid, two modifications of H 6 IO 6 HSO 4 can selectively and reproducibly be precipitated. The crystal structures determinations prove the existence of H 6 IO 6 + in the solid state. The crystal structures and Raman spectra of α‐H 6 IO 6 HSO 4 ( 1a ) and β‐H 6 IO 6 HSO 4 ( 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.