Crystal structure of catena-poly[[tetraaquamagnesium]-μ-(dihydrogen hypodiphosphato)-κ2 O:O′]
[Mg(H 2 P 2 O 6 )(H 2 O) 4 ] is the first alkaline earth hypodiphosphate to be structurally determined. It consists of (H 2 P 2 O 6 ) 2− anions that are bridged by Mg 2+ cations into a chain structure. Water molecules complete the octahedral coordination sphere of the metal and built up a three-di...
Gespeichert in:
| Veröffentlicht in: | Acta crystallographica. Section E, Crystallographic communications Crystallographic communications, 2015-07, Vol.71 (Pt 7), p.867-869 |
|---|---|
| Hauptverfasser: | , |
| Format: | Artikel |
| Sprache: | eng |
| Schlagworte: | |
| Online-Zugang: | Volltext |
| Tags: |
Tag hinzufügen
Keine Tags, Fügen Sie den ersten Tag hinzu!
|
| Zusammenfassung: | [Mg(H
2
P
2
O
6
)(H
2
O)
4
] is the first alkaline earth hypodiphosphate to be structurally determined. It consists of (H
2
P
2
O
6
)
2−
anions that are bridged by Mg
2+
cations into a chain structure. Water molecules complete the octahedral coordination sphere of the metal and built up a three-dimensional hydrogen-bonding network.
The crystal structure of the title compound, [Mg(H
2
P
2
O
6
)(H
2
O)
4
]
n
, is built up from (H
2
P
2
O
6
)
2−
anions bridging Mg
2+
cations into chains extending parallel to [011]. The Mg
2+
ion is located on an inversion centre and is octahedrally coordinated by the O atoms of two (H
2
P
2
O
6
)
2−
anions and four water molecules. The centrosymmetric (H
2
P
2
O
6
)
2−
anion has a staggered conformation whereby the tetravalent phosphorus atom is surrounded tetrahedrally by three O atoms and by one symmetry-related P atom. A three-dimensional O—H⋯O hydrogen-bonded network of medium strength involving the P—OH group of the anion and the water molecules is present. |
|---|---|
| ISSN: | 2056-9890 2056-9890 |
| DOI: | 10.1107/S2056989015012037 |