REFINEMENT OF THE CRYSTAL-STRUCTURE OF SR O2

Authors
RANGE KJ RAU F SCHIESSL U KLEMENT U
Citation
Kj. Range et al., REFINEMENT OF THE CRYSTAL-STRUCTURE OF SR O2, Zeitschrift fur anorganische und allgemeine Chemie, 620(5), 1994, pp. 879-881
Citations number
11
Categorie Soggetti
Chemistry Inorganic & Nuclear
Journal title
Zeitschrift fur anorganische und allgemeine Chemie
ISSN journal
00442313 → ACNP
Volume
620
Issue
5
Year of publication
1994
Pages
879 - 881
Database
ISI
SICI code
0044-2313(1994)620:5<879:ROTCOS>2.0.ZU;2-U
Abstract
Single crystals of SrO2 have been obtained after high pressure/high te mperature reaction of a SrO/KClO3 mixture at 20 kbar, 1400-degrees-C. The crystal structure was refined using 154 unique diffractometer data (I4/mmm; a = 3.5626(3), c = 6.6159(6) angstrom; Z = 2; R = 0.033, R(w ) = 0.022, S = 0.932). The O-O distance (1.493(4) angstrom) is signifi cantly longer than the one previously assumed. From a refinement of th e site occupation factor for oxygen a composition SrO1.95(2) has been found for the crystal investigated.