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The Orthoperiodates of Calcium, Strontium, and Barium
Author(s) -
Hummel Thorsten,
Salk Florian,
Ströbele Markus,
Enseling David,
Jüstel Thomas,
Meyer H.Jürgen
Publication year - 2015
Publication title -
european journal of inorganic chemistry
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.667
H-Index - 136
eISSN - 1099-0682
pISSN - 1434-1948
DOI - 10.1002/ejic.201403094
Subject(s) - barium , strontium , chemistry , thermogravimetric analysis , alkaline earth metal , europium , differential thermal analysis , metal , calcium silicate , luminescence , calcium , inorganic chemistry , nuclear chemistry , diffraction , materials science , ion , organic chemistry , physics , optoelectronics , optics , composite material
Abstract Orthoperiodates of calcium, strontium, and barium were prepared by solid‐state reactions of metal iodides or metal iodates with oxygen in air. M(IO 3 ) 2 (M = Ca) or MI 2 (M = Sr, Ba) were heated in an open corundum crucible to yield M 5 (IO 6 ) 2 as a product with beige to light brown body color. Reactions were investigated by thermal analyses, using differential thermal analysis (DTA) and thermogravimetric analysis (TGA). Two distinct crystal structures were assigned for M 5 (IO 6 ) 2 with the space group R $\bar {3}$ c for M = Ca, Sr (isotypic with Ca, Sr perrhenates) and Pnma for M = Ba based on recorded powder X‐ray diffraction data. Luminescence properties of europium‐doped samples are reported.