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Search Publications by: Terrence J Udovic (Assoc)

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Displaying 126 - 150 of 166

Monoammoniate of Calcium Amidoborane - Synthesis, Structure and Hydrogen-Storage Properties

January 9, 2012
Author(s)
Yong Shen Chua, Hui Wu, Wei Zhou, Terrence J. Udovic, Guotao Wu, Zhitao Xiong, Ming Wah Wong, Ping Chen
The monoammoniate of calcium amidoborane, Ca(NH 2BH 3) 2¿NH 3 was synthesized by ball milling an equimolar mixture of CaNH and AB. Its crystal structure has been determined and found to contain a complete dihydrogen-bonded network. Thermal decomposition

Hydrogen Dynamics in Ce 2 Fe 17 H 5 : Inelastic and Quasielastic Neutron Scattering Studies

September 21, 2011
Author(s)
Alexander V. Skripov, N. V. Mushnikov, P. B. Terent'ev, V. S. Gaviko, Terrence J. Udovic, John J. Rush
The vibrational spectrum of hydrogen and parameters of H jump motion in the rhombohedral Th 2Zn 17d-type compound Ce 2Fe 17H 5 have been studied by means of inelastic and quasielastic neutron scattering. It is found that hydrogen atoms occupying

Low-Temperature Tunneling and Rotational Dynamics of the Ammonium Cations in (NH 4 ) 2 B 12 H 12

September 1, 2011
Author(s)
Kristina Verdal, Terrence J. Udovic, John J. Rush, Vitalie Stavila, Hui Wu, Wei Zhou, Timothy Jenkins
Low-temperature neutron scattering spectra of diammonium dodecahydro-closo-dodecaborate [(NH4)2B12H12] reveal two NH 4 + rotational tunneling peaks (e.g., 18.5 υeV and 37 υeV at 4 K), consistent with the tetrahedral symmetry and environment of the cations