Neutron powder diffraction and solid-state deuterium NMR studies of Ca2RuD6 and the stability of transition metal hexahydride salts

Autor:	Brian H. Toby, Ralph O. Moyer, Denis F. R. Gilson, Sytle M. Antao, Frederick G. Morin
Rok vydání:	2008
Předmět:	Deuterium NMR Lanthanide Chemistry Mechanical Engineering Neutron diffraction Metals and Alloys Ionic bonding Ion Transition metal Chemical bond Deuterium Mechanics of Materials Materials Chemistry Physical chemistry Nuclear chemistry
Zdroj:	Journal of Alloys and Compounds. 460:138-141
ISSN:	0925-8388
DOI:	10.1016/j.jallcom.2007.05.078
Popis:	The crystal structure of Ca2RuD6 has been determined by neutron powder diffraction: space group Fm3m ,K 2PtCl6 structure, as found for other hexahydride salts of group 8 metals with alkaline earth or lanthanide counter ions. No structural phase transition was observed between 340 K and 50 K. The deuterium nuclear quadrupole coupling constant, 54.7 kHz, leads to an ionic character of the Ru–D bond of 76%. The known trends in the behaviour of A2MH6 salts are interpreted in terms of the ionization energies of the cation and the central metal atom. © 2007 Elsevier B.V. All rights reserved.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::d7a531fab3ad0faa5488402f0d349d35 https://doi.org/10.1016/j.jallcom.2007.05.078 Zobrazit plný text záznamu Full Text from ScienceDirect