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A New Europium(II) Oxide Iodide: Eu 2 OI 2
Author(s) -
Hammerich Stefanie,
Meyer Gerd
Publication year - 2006
Publication title -
zeitschrift für anorganische und allgemeine chemie
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.354
H-Index - 66
eISSN - 1521-3749
pISSN - 0044-2313
DOI - 10.1002/zaac.200500492
Subject(s) - europium , orthorhombic crystal system , iodide , crystallography , tantalum , crystal structure , barium , oxide , chemistry , ion , metal , tetragonal crystal system , materials science , inorganic chemistry , organic chemistry
Red single crystals of Eu 2 OI 2 were obtained from a reaction mixture of barium metal, EuI 2 , Eu 4 OI 6 and some NH 4 I in a tantalum tube at 780/500 °C. The crystal structure (orthorhombic, Imcb, Z = 4, a = 648.93(11), b = 742.85(13), c = 1307.1(3) pm, R1(all) = 0.0605) contains {Eu 4 O} tetrahedra connected via trans‐edges to infinite chains. The iodide ions surround and connect these chains to a three‐dimensional structure.