Home Symmetrie von KJO3 und die Struktur der Zimmertemperaturphase
Article
Licensed
Unlicensed Requires Authentication

Symmetrie von KJO3 und die Struktur der Zimmertemperaturphase

Published/Copyright: July 28, 2010

Abstract

Crystals of KIO3 show the space-group symmetry P 1 at room temperature. The lattice constants being: a = 8.923 Å, b = 8.942 Å, c = 7.709 Å, α = 54.4° β = 125.3°, γ = 90.6°. In this structure, which belongs to the perowskite typ, two types of IO6-octahedral chains could be distinguished, the straight ones alternating with those which are somewhat twisted. This arrangement gives use to a pseudo-monoclinic symmetry, which becomes true if the crystals are heated to 72.5°C, the space group being Cm. At 212°C they transform to a rhombohedral modification possessing the space group R[unk].

Published Online: 2010-7-28
Published in Print: 1973-10-1

© 2015 Oldenbourg Wissenschaftsverlag GmbH, Rosenheimer Str. 145, 81671 München

Downloaded on 3.11.2025 from https://www.degruyterbrill.com/document/doi/10.1524/zkri.1973.137.5-6.412/html
Scroll to top button