Cargando…
Crystal structure of tetraguanidinium [hexahydrogen hexaarsenato(V)tetravanadate(V)] tetrahydrate
The complete polyoxidometallate anion in the title compound, (CH(6)N(3))(4)[H(6)V(4)As(6)O(30)]·4H(2)O, is generated by crystallographic inversion symmetry. The polyhedral building units are distorted VO(6) octahedra and AsO(3)OH tetrahedra. The VO(6) units feature a short formal V=O double bond a...
Autor principal: | |
---|---|
Formato: | Online Artículo Texto |
Lenguaje: | English |
Publicado: |
International Union of Crystallography
2014
|
Materias: | |
Acceso en línea: | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4186164/ https://www.ncbi.nlm.nih.gov/pubmed/25309172 http://dx.doi.org/10.1107/S1600536814011349 |
Sumario: | The complete polyoxidometallate anion in the title compound, (CH(6)N(3))(4)[H(6)V(4)As(6)O(30)]·4H(2)O, is generated by crystallographic inversion symmetry. The polyhedral building units are distorted VO(6) octahedra and AsO(3)OH tetrahedra. The VO(6) units feature a short formal V=O double bond and are linked by a common edge. Two such V(2)O(6) double octahedral units are linked by four isolated AsO(3)OH tetrahedra to complete the anion, which features two internal O—H⋯O hydrogen bonds. In the crystal, O—H⋯O hydrogen bonds between the polyoxidometallate anions generate (01-1) sheets. The sheets are connected by cation-to-cluster N—H⋯O hydrogen bonds, and cation-to-water N—H⋯O links also occur. The O atom of one of the water molecules is disordered over two sites in a 0.703 (17):0.297 (17) ratio. |
---|