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  • International Union of Crystallography (IUCr)  (4)
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  • 1
    Electronic Resource
    Electronic Resource
    Na2Co(H2PO4)4·4H2O (2000)
    Oxford [u.a.] : International Union of Crystallography (IUCr)
    Acta crystallographica 56 (2000), S. 511-512 
    Details
    ISSN: 1600-5759
    Source: Crystallography Journals Online : IUCR Backfile Archive 1948-2001
    Topics: Chemistry and Pharmacology , Geosciences , Physics
    Notes: In the title compound, disodium cobalt tetrakis(dihydrogenphosphate) tetrahydrate, the CoII ion lies on an inversion centre and is octahedrally surrounded by two water molecules and four H2PO4 groups to give a cobalt complex anion of the form [Co(H2PO4)4(OH2)]2−. The three-dimensional framework results from hydrogen bonding between the anions. The relationship with the structures of Co(H2PO4)2·2H2O and K2CoP4O12·5H2O is discussed.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1107/S0108270199015279
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    Paper (German National Licenses)
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  • 2
    Electronic Resource
    Electronic Resource
    Layered zincoarsenate templated by N,N,N′,N′-tetramethylethylene-diamine molecules (2000)
    Oxford [u.a.] : International Union of Crystallography (IUCr)
    Acta crystallographica 56 (2000), S. 793-794 
    Details
    ISSN: 1600-5759
    Source: Crystallography Journals Online : IUCR Backfile Archive 1948-2001
    Topics: Chemistry and Pharmacology , Geosciences , Physics
    Notes: The title compound, N,N,N′,N′-tetramethylethylenediammonium diaqua(arsenate)(hydrogen arsenate)dizinc(II), (C6H18N2)0.5[Zn2(AsO4)(HAsO4)(H2O)2], is a new zincoarsenate obtained by hydrothermal synthesis. The structure consists of infinite two-dimensional anionic layers alternating with planes containing centrosymmetric organic diprotonated template N,N,N′,N′-tetramethylethylenediammonium cations, [H3NC6H12NH3]2+. The latter are interconnected to the framework through hydrogen bonds.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1107/S0108270100005370
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  • 3
    Electronic Resource
    Electronic Resource
    4-Ammonio-2,2,6,6-tétraméthylpipéridinium chromate dihydrate (2001)
    Oxford [u.a.] : International Union of Crystallography (IUCr)
    Acta crystallographica 57 (2001), S. 1369-1370 
    Details
    ISSN: 1600-5759
    Source: Crystallography Journals Online : IUCR Backfile Archive 1948-2001
    Topics: Chemistry and Pharmacology , Geosciences , Physics
    Notes: The title compound, 4-ammonio-2,2,6,6-tetramethylpiperidinium chromate dihydrate, (C9H22N2)[CrO4]·2H2O, crystallizes in the monoclinic system with one organic cation and one chromate anion in the asymmetric unit, together with three independent sites for water molecules, two of which have their O atoms located on twofold axes. The structure is composed of layers built up from CrO42− tetrahedra and water molecules alternating with C9H22N22+ cations and additional water molecules. Two types of hydrogen bonds, O—H...O and N—H...O, ensure the cohesion and stability of the structure.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1107/S0108270101008447
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  • 4
    Electronic Resource
    Electronic Resource
    Chromate de 2,2-diméthylpropylènediammonium (2000)
    Oxford [u.a.] : International Union of Crystallography (IUCr)
    Acta crystallographica 56 (2000), S. e333-e334 
    Details
    ISSN: 1600-5759
    Source: Crystallography Journals Online : IUCR Backfile Archive 1948-2001
    Topics: Chemistry and Pharmacology , Geosciences , Physics
    Notes: The crystal structure of the title compound, 2,2-dimethyl-1,3-propanediammonium chromate, (C5H16N2)[CrO4], consists of layers built up from CrO42− tetrahedra alternating with diprotonated 2,2-dimethylpropylendiamine molecules. N—H...O hydrogen bonds ensure the cohesion and stability of the structure.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1107/S0108270100009677
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