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  1. Article: KHCoP2O7.2H2O: a novel acidic pyrophosphate.

    Harcharras, Mohamed / Goubitz, Kees / Ennaciri, Abdelaziz / Assaaoudi, Hassane / Schenk, Henk

    Acta crystallographica. Section C, Crystal structure communications

    2003  Volume 59, Issue Pt 6, Page(s) i57–8

    Abstract: Potassium cobalt hydrogenpyrophosphate dihydrate, KHCoP(2)O(7).2H(2)O, crystallizes in the orthorhombic space group Pnma. This salt is isotypic with KHMP(2)O(7).2H(2)O (M = Mn and Zn). The structure consists of alternating layers, built from HP(2)O(7)(3-) ...

    Abstract Potassium cobalt hydrogenpyrophosphate dihydrate, KHCoP(2)O(7).2H(2)O, crystallizes in the orthorhombic space group Pnma. This salt is isotypic with KHMP(2)O(7).2H(2)O (M = Mn and Zn). The structure consists of alternating layers, built from HP(2)O(7)(3-) acidic pyrophosphate groups and CoO(6) 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 PO(4) groups, with the bridging O atom on a mirror plane.
    Language English
    Publishing date 2003-05-31
    Publishing country United States
    Document type Journal Article
    ZDB-ID 2025703-X
    ISSN 2053-2296 ; 1600-5759 ; 0108-2701
    ISSN (online) 2053-2296 ; 1600-5759
    ISSN 0108-2701
    DOI 10.1107/s0108270103010084
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  2. Article: KZn(HP(2)O(7)) x 2H(2)O and KMn(HP(2)O(7)) x -2H(2)O: acidpyrophosphate metallates(II) with layer structures.

    Assaaoudi, Hassane / Ennaciri, Abdelaziz / Harcharras, Mohamed / El-Bali, Brahim / Reinauer, Felix / Glaum, Robert / Rulmont, André / Spirlet, Marie-Rose

    Acta crystallographica. Section C, Crystal structure communications

    2002  Volume 58, Issue Pt 6, Page(s) i79–81

    Abstract: The crystal structures of the isomorphous title compounds, namely potassium zinc hydrogen pyrophosphate dihydrate and potassium manganese hydrogen pyrophosphate dihydrate, consist of acidic pyrophosphate-metallate(II) layers joined by K(+) ions and ... ...

    Abstract The crystal structures of the isomorphous title compounds, namely potassium zinc hydrogen pyrophosphate dihydrate and potassium manganese hydrogen pyrophosphate dihydrate, consist of acidic pyrophosphate-metallate(II) layers joined by K(+) ions and hydrogen-bridging bonds. The Zn(2+)/Mn(2+) ions are octahedrally surrounded by four pyrophosphate O atoms and by two water molecules. The (HP(2)O(7))(3-) anions exhibit eclipsed conformations. The metal ions and water O atoms lie on mirror planes, as does the central O atom of the (HP(2)O(7))(3-) anion.
    Language English
    Publishing date 2002-05-21
    Publishing country United States
    Document type Journal Article
    ZDB-ID 2025703-X
    ISSN 2053-2296 ; 1600-5759 ; 0108-2701
    ISSN (online) 2053-2296 ; 1600-5759
    ISSN 0108-2701
    DOI 10.1107/s0108270102007394
    Database MEDical Literature Analysis and Retrieval System OnLINE

    Full text online

    More links

    Kategorien

    Order via subito

    This service is chargeable due to the Delivery terms set by subito. Orders including an article and supplementary material will be classified as separate orders. In these cases, fees will be demanded for each order.

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