Open AccessInfra‐red spectrum and tetrahedral coordination of lithium in the spinel LiCrGeO 4
Author(s) -
Tarte P.
Publication year - 1963
Publication title -
acta crystallographica
Language(s) - English
Resource type - Journals
ISSN - 0365-110X
DOI - 10.1107/s0365110x63000542
Subject(s) - spinel , lithium (medication) , tetrahedron , spectrum (functional analysis) , crystallography , materials science , chemistry , inorganic chemistry , physics , metallurgy , psychology , quantum mechanics , psychiatry
The compound LiCrGeO4 has been recent ly synthesized and recognized as a spinel on the basis of its Xray powder d iagram (Strunz & Jacob, 1960), bu t no informat ion about the cat ion dis t r ibut ion has so far been reported. Bo th l i th ium and ge rman ium are known to have a marked preference for t e t rahedra l co-ordination in oxygenated compounds, and their actual dis t r ibut ion in the spinel LiCrGeO 4 can not be decided wi thout fur ther investigation. The possibilities offered by infra-red spect roscopy (Tarte & P r e u d h o m m e ; see also Tarte, 1962a) have been applied to this problem.