Structural and dynamic properties of BalnGeH: A rare solid-state indium hydride

Inorganic Chemistry

Volumn 48, Issue 13, 2009, Pages 5602-5604

  Evans, Michael J ^a   Kranak, Verina F ^a   Garcia Gareia, Francisco J ^b   Holland, Gregory P ^a   Daemen, Luke L ^c   Proffen, Thomas ^c   Lee, Myeong H ^a   Sankey, Otto F ^a   Häussermann, Ulrich ^a  

^a ARIZONA STATE UNIVERSITY   (United States)

^b UNIVERSITY OF AUGSBURG   (Germany)

^c LOS ALAMOS NATIONAL LABORATORY   (United States)

Author keywords

[No Author keywords available]

Indexed keywords

EID: 67649947495     PISSN: 00201669     EISSN: None     Source Type: Journal    
DOI: 10.1021/ic9005423     Document Type: Article

References (29)

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14. All steps of the synthesis and sample preparation for diffraction experiments were carried out under dry argon. Ba (99.9%, Aldrich), In (99.9%. Aldrich). and Ge (99.999%. Alfa Aesar) were used as received. The starting material BalnGe was prepared by arc-melting (low current arc) stoichiometric amounts of the pure elements. For hydrogenation, a cold-pressed pellet of BalnGe was loaded into a corundum crucible and placed into a stainless steel autoclave. The reaction was carried out at 300 °C for 3 days and a hydrogen pressure of 80 bar. BalnGeD was prepared analogously but at 275 °C. BalnGe, BalnGeH, and BalnGeD were characterized by powder X-ray diffraction (Siemens D5000, Bragg - Brentano geometry; Cu Ka radiation; Si standard). BalnGe has a metallic luster, while the hydride and deuteride are dullish gray. All compounds react slowly with air/moisture, yielding a black, amorphous material.
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29. BaTrGcH samples for INS spectroscopy were loaded into scaled aluminum sample holders under a helium atmosphere. The spectra were measured at 10 K on the filter difference spectrometer instrument at the Lujan Center at Los Alamos National Laboratory. Data were treated by discrete, direct deconvolution of the instrument resolution function, which provides an energy resolution on the order of 4-5%.