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Ternary Indides Eu 2 Pd 2 In and Eu 2 Pt 2 In
Author(s) -
Muts Ihor,
Zaremba Vasyl I.,
Pöttgen Rainer
Publication year - 2012
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.201100417
Subject(s) - crystallography , tantalum , europium , ternary operation , diffractometer , palladium , materials science , platinum , crystal structure , substructure , indium , single crystal , hexagonal crystal system , denticity , chemistry , luminescence , catalysis , metallurgy , biochemistry , optoelectronics , structural engineering , computer science , engineering , programming language
The indides Eu 2 Pd 2 In and Eu 2 Pt 2 In were synthesized from the elements in sealed tantalum tubes in an induction furnace. The samples were characterized by powder X‐ray diffraction. The structures were refined on the basis of single‐crystal X‐ray diffractometer data: HT‐Pr 2 Co 2 Al type, C 2/ c , a = 1035.7(2), b = 592.9(1), c = 823.6(2) pm, β = 104.26(1) °, wR 2 = 0.026, 1075 F 2 values, 25 variables for Eu 2 Pd 2 In and a = 1017.2(2), b = 588.7(1), c = 826.5(1) pm, β = 103.76(1) °, wR 2 = 0.062, 706 F 2 values, 25 variables for Eu 2 Pt 2 In. The indium atoms have four platinum (palladium) neighbors in strongly distorted tetrahedral coordination at Pt–In and Pd–In distances ranging from 273 to 275 pm. These InPd 4/2 and InPt 4/2 units are condensed via common edges to infinite InPd 2 and InPt 2 chains, which are surrounded by the europium atoms. The chains form the motif of hexagonal rod packing.