KHCoP2O7·2H2O: a novel acidic pyrophosphate
Identifieur interne : 000A35 ( Main/Exploration ); précédent : 000A34; suivant : 000A36KHCoP2O7·2H2O: a novel acidic pyrophosphate
Auteurs : Mohamed Harcharras ; Kees Goubitz ; Abdelaziz Ennaciri ; Hassane Assaaoudi ; Henk SchenkSource :
- Acta Crystallographica Section C [ 0108-2701 ] ; 2003-06.
Abstract
Potassium cobalt hydrogenpyrophosphate dihydrate, KHCoP2O7·2H2O, crystallizes in the orthorhombic space group Pnma. This salt is isotypic with KHMP2O7·2H2O (M = Mn and Zn). The structure consists of alternating layers, built from HP2O73− acidic pyrophosphate groups and CoO6 octahedra, joined by potassium ions and bridging hydrogen bonds. The Co, K and water O atoms lie on mirror planes. The pyrophosphate group consists of two symmetry‐related PO4 groups, with the bridging O atom on a mirror plane.
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DOI: 10.1107/S0108270103010084
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C</title><idno type="ISSN">0108-2701</idno><idno type="eISSN">1600-5759</idno><imprint><publisher>Munksgaard International Publishers</publisher><pubPlace>5 Abbey Square, Chester, Cheshire CH1 2HU, England</pubPlace><date type="published" when="2003-06">2003-06</date><biblScope unit="volume">59</biblScope><biblScope unit="issue">6</biblScope><biblScope unit="page" from="57">i57</biblScope><biblScope unit="page" to="58">i58</biblScope></imprint><idno type="ISSN">0108-2701</idno></series><idno type="istex">F6E04FD1D0E1A3D45448D4345F75CFEB6AF65288</idno><idno type="DOI">10.1107/S0108270103010084</idno><idno type="ArticleID">AYCAV1135</idno></biblStruct></sourceDesc><seriesStmt><idno type="ISSN">0108-2701</idno></seriesStmt></fileDesc><profileDesc><textClass></textClass><langUsage><language ident="en">en</language></langUsage></profileDesc></teiHeader><front><div type="abstract" xml:lang="en">Potassium cobalt hydrogenpyrophosphate dihydrate, KHCoP2O7·2H2O, crystallizes in the orthorhombic space group Pnma. This salt is isotypic with KHMP2O7·2H2O (M = Mn and Zn). The structure consists of alternating layers, built from HP2O73− acidic pyrophosphate groups and CoO6 octahedra, joined by potassium ions and bridging hydrogen bonds. The Co, K and water O atoms lie on mirror planes. 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