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Estudio estructural del MoO3 y sus planos cristalinos

Authors :
Susana Beatriz Gesari
Alfredo Juan
Beatriz Irigoyen
Source :
Química Nova, Volume: 20, Issue: 1, Pages: 102-99, Published: FEB 1997, Química Nova v.20 n.1 1997, Química Nova, Sociedade Brasileira de Química (SBQ), instacron:SBQ
Publication Year :
1997
Publisher :
Sociedade Brasileira de QuĂ­mica, 1997.

Abstract

In the present work we present geometric models of the most studied MoO3 surfaces, which were obtained using the DTMM 2.0 Molecular Modeller software. MoO3 has an orthorhombic layered structure, with each layer comprised of two interleaved planes of MoO6 octahedral. These layers are parallel to the (010) crystal plane and only oxygen ions are exposed on their surfaces. This situation results in weak van der Waals bonding between layers and in a relatively inert surface. In our approach to surface geometric structure we consider "ideal" crystal surface, in which the bulk atomic arrangement is maintained. These surfaces were generated by imaginary cleavage along appropriate planes in the bulk crystal structure.

Details

Language :
Spanish; Castilian
Database :
OpenAIRE
Journal :
Química Nova, Volume: 20, Issue: 1, Pages: 102-99, Published: FEB 1997, Química Nova v.20 n.1 1997, Química Nova, Sociedade Brasileira de Química (SBQ), instacron:SBQ
Accession number :
edsair.doi.dedup.....40af81aa4e190ea7428175bc2fcc6c8e