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Intermetallic Compounds with Multiple Yttrium Sites – An 89 Y Solid State NMR Spectroscopic Study
Author(s) -
Höting Christoph,
Eckert Hellmut,
Haarmann Frank,
Pöttgen Rainer
Publication year - 2014
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.201400026
Subject(s) - intermetallic , yttrium , crystallography , crystal structure , single crystal , nmr spectra database , solid state nuclear magnetic resonance , chemistry , materials science , analytical chemistry (journal) , spectral line , nuclear magnetic resonance , physics , organic chemistry , alloy , astronomy , oxide , chromatography
The intermetallic compounds Y 2 RuB 6 , Y 2 ReB 6 , Y 2 RhSi 3 , YRh 2 Si, and YPdSi were synthesized from the elements by arc‐melting and subsequent annealing in sealed silica ampoules. The samples were studied by X‐ray diffraction on powders. The structures of Y 2 RuB 6 and Y 2 RhSi 3 were refined from single crystal diffraction data: Y 2 ReB 6 type, Pbam , a = 916.3(2) pm, b = 1150.3(3) pm, c = 364.37(9) pm, wR 2 = 0.1056, 942 F 2 values, 38 variables for Y 2 RuB 6 and Er 2 RhSi 3 type, a = 812.6(2), c = 787.2(1) pm, wR 2 = 0.0682, 369 F 2 values, 17 variables for Y 2 RhSi 3 . The five compounds are characterized by two or three (YPdSi), crystallographically independent yttrium sites, which were all well resolved in 89 Y solid state NMR spectra. The NMR signal shifts were correlated with the density of states of the s electrons at the Fermi level, resulting in a non‐ambiguous assignment of the NMR signals to the various sites in the crystal structures.