Bonding properties of the new Zintl-phase hydrides

We investigated the electronic structure of three recently discovered Zintl-phase hydrides: SrAl2H2, Ca3SnH2, and Ca5Sn3H. The energy bands and the total and partial densities of states were computed by means of the full-potential linearized augmented-plane-wave method. We found the SrAl2H2 and Ca5S...

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Detalles Bibliográficos
Autores: Orgaz, E, Aburto Espina, Andrea Luisa
Tipo de recurso: artículo
Estado:Versión publicada
Fecha de publicación:2005
País:México
Institución:Universidad Nacional Autónoma de México
Repositorio:Sistema de Información de la Facultad de Ciencias, UNAM
OAI Identifier:oai:repositorio.fciencias.unam.mx:11154/2410
Acceso en línea:http://hdl.handle.net/11154/2410
Access Level:acceso abierto
Palabra clave:Chemistry, Physical
Mathematics, Interdisciplinary Applications
Physics, Atomic, Molecular & Chemical
electronic properties
ab initio band structure
Zintl phases
ternary hydrides
hydrogen storage
Descripción
Sumario:We investigated the electronic structure of three recently discovered Zintl-phase hydrides: SrAl2H2, Ca3SnH2, and Ca5Sn3H. The energy bands and the total and partial densities of states were computed by means of the full-potential linearized augmented-plane-wave method. We found the SrAl2H2 and Ca5Sn3H hydrides are metallic and Ca3SnH2 is a small-gap semiconductor. We analyzed the chemical bonding features of this series of compounds. (C) 2004 Wiley Periodicals, Inc.