γ-HIO3 - a Metastable, Centrosymmetric Polymorph of Iodic Acid

From solutions of chromium(III) perchlorate and periodic acid, single crystals of γ‐HIO3 were obtained and characterized by single‐crystal X‐ray diffraction, Raman spectroscopy and thermal analysis. The compound crystallizes in the orthorhombic crystal system, space group Pbca (a = 563.92, b = 611.1...

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Published inZeitschrift für anorganische und allgemeine Chemie (1950) Vol. 631; no. 9; pp. 1574 - 1576
Main Authors Fischer, Andreas, Lindsjö, Martin
Format Journal Article
LanguageEnglish
Published Weinheim WILEY-VCH Verlag 01.01.2005
WILEY‐VCH Verlag
Subjects
crystal
diffraction
dio3
hio3
Iodic acid
Polymorphism
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Summary:From solutions of chromium(III) perchlorate and periodic acid, single crystals of γ‐HIO3 were obtained and characterized by single‐crystal X‐ray diffraction, Raman spectroscopy and thermal analysis. The compound crystallizes in the orthorhombic crystal system, space group Pbca (a = 563.92, b = 611.10, c = 1507.16 pm). The structure is built up by dimers (HIO3)2, which are formed by hydrogen bonds. The crystals are metastable and transform into the stable modification, α‐HIO3, within a couple of weeks.
Bibliography:ArticleID:ZAAC200500099
istex:379CE00F323084AA9492E5E71B9AA35FDBA6952B
ark:/67375/WNG-NL03VP4G-8
ISSN:0044-2313
1521-3749
1521-3749
DOI:10.1002/zaac.200500099