KNb(1.75)V(0.25)PS(10)

The title compound, potassium diniobium vanadium phospho­rus deca­sulfide, KNb(1.75)V(0.25)PS(10), was obtained by reaction of the elements with a eutectic mixture of KCl/LiCl. It is isostructural with the quaternary KNb(2)PS(10), but the Nb sites are occupied by statistically disordered Nb (87.5%)...

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Detalles Bibliográficos
Autores principales: Yu, Jaemin, Yun, Hoseop
Formato: Texto
Lenguaje:English
Publicado: International Union of Crystallography 2011
Materias:
Inorganic Papers
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3051977/
https://www.ncbi.nlm.nih.gov/pubmed/21522232
http://dx.doi.org/10.1107/S1600536811004430
Descripción
Sumario:The title compound, potassium diniobium vanadium phospho­rus deca­sulfide, KNb(1.75)V(0.25)PS(10), was obtained by reaction of the elements with a eutectic mixture of KCl/LiCl. It is isostructural with the quaternary KNb(2)PS(10), but the Nb sites are occupied by statistically disordered Nb (87.5%) and V (12.5%) atoms. The structure is composed of anionic (∞) (1)[M (2)PS(10)](−) chains (M = Nb/V) separated from each other by K(+) ions. The chain is composed of [MS(8)] distorted bicapped trigonal prisms and [PS(4)] tetra­hedra. There are no inter­chain bonding inter­actions. The crystal used for the X-ray analysis was a racemic twin.

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