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Flux Synthesis and Structural and Spectroscopic Characterization of a Cobalt Europium Trisilicate
Author(s) -
WierzbickaWieczorek Maria,
Lenz Christoph,
Giester Gerald
Publication year - 2013
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.201300018
Subject(s) - chemistry , monoclinic crystal system , crystallography , raman spectroscopy , molybdate , europium , crystal structure , photoluminescence , characterization (materials science) , cobalt , flux method , spectroscopy , infrared spectroscopy , analytical chemistry (journal) , single crystal , ion , inorganic chemistry , nanotechnology , materials science , physics , optoelectronics , organic chemistry , chromatography , optics , quantum mechanics
A trisilicate with a new structure type, CoEu 2 Si 3 O 10 , was obtained from molybdate–carbonate mixtures in Pt crucibles by using a high‐temperature flux‐growth method. The structural characterization of CoEu 2 Si 3 O 10 was done by evaluation of single‐crystal X‐ray diffraction data collected at three different temperatures (105, 293, and 370 K). The light violet crystals are monoclinic, space group P 2 1 / n with a = 6.5620(13), b = 6.7207(13), c = 16.986(3) Å, β = 90.06(3)°, V = 749.1(3) Å 3 , and R(F) = 2.49 %, at room temperature. The new crystal structure type features layers parallel to (001) containing Si 3 O 10 groups and Co 2 O 10 dimers. The Si–Si–Si angle of the Si 3 O 10 unit is 115.7°. Raman spectroscopy and a study of the photoluminescence properties of the Eu 3+ ions in CoEu 2 Si 3 O 10 were undertaken.