γ‐HIO 3  – a Metastable, Centrosymmetric Polymorph of Iodic Acid | Zendy

Fischer Andreas | Zendy; Lindsjö Martin | Zendy

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γ‐HIO 3 – a Metastable, Centrosymmetric Polymorph of Iodic Acid

Author(s) -

Fischer Andreas,

Lindsjö Martin

Publication year - 2005

Publication title -

zeitschrift für anorganische und allgemeine chemie

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 0.354

H-Index - 66

eISSN - 1521-3749

pISSN - 0044-2313

DOI - 10.1002/zaac.200500099

Subject(s) - orthorhombic crystal system , hydrogen bond , crystallography , metastability , raman spectroscopy , crystal structure , ammonium perchlorate , diffraction , crystal (programming language) , group (periodic table) , materials science , chemistry , molecule , thermal decomposition , optics , physics , organic chemistry , programming language , computer science

From solutions of chromium(III) perchlorate and periodic acid, single crystals of γ‐HIO 3 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 (HIO 3 ) 2 , which are formed by hydrogen bonds. The crystals are metastable and transform into the stable modification, α‐HIO 3 , within a couple of weeks.

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