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  • Crystal structure of tetraaqua(ethylenediamine)nickel(II) sulphate dihydrate and of tetraaqua(2,2'-bipyridyl)nickel(II) sulphate dihydrate

    Author(s)
    HEALY, PC
    PATRICK, JM
    WHITE, AH
    Griffith University Author(s)
    Healy, Peter C.
    Year published
    1984
    Metadata
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    Abstract
    The crystal structures of the title compounds, [Ni(OH2)4(en)] [SO4].2H2O, (1), and [Ni(OH2)4(bpy)]- [SO4].2H2O, (2), have been determined by single-crystal X-ray diffraction methods at 295 K, being refined by full matrix least-squares methods to residuals of 0.028,0.031 for 1852, 4323 independent 'observed' reflections respectively. Crystals of (1) are monoclinic, C2/c, a 9.459(4), b 12.192(7), c 12.294(3) Ŭ ߠ119.84(4)ꬠZ 4. In the cation, Ni-N is 2.061(2) Ż Ni-O (trans to O, N respectively) are 2.106(2), 2.063(2) Ů Instead of being enlarged above 90ꠡs predicted from repulsion theory, the angle between the pair of oxygen atoms ...
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    The crystal structures of the title compounds, [Ni(OH2)4(en)] [SO4].2H2O, (1), and [Ni(OH2)4(bpy)]- [SO4].2H2O, (2), have been determined by single-crystal X-ray diffraction methods at 295 K, being refined by full matrix least-squares methods to residuals of 0.028,0.031 for 1852, 4323 independent 'observed' reflections respectively. Crystals of (1) are monoclinic, C2/c, a 9.459(4), b 12.192(7), c 12.294(3) Ŭ ߠ119.84(4)ꬠZ 4. In the cation, Ni-N is 2.061(2) Ż Ni-O (trans to O, N respectively) are 2.106(2), 2.063(2) Ů Instead of being enlarged above 90ꠡs predicted from repulsion theory, the angle between the pair of oxygen atoms trans to nitrogen is diminished, being 87 14(7)ꮠCrystals of (2) are triclinic, P1, a 11.476(5), b 9.351(5), c 7.793(4) Ŭ a 77.63(4), ߠ83.52(3), ?87.40(4)ꬠZ 2. In the cation, Ni-N are both 2.063(2) Ů Ni-O (trans to N, O respectively) are 2.060(2), 2.O42(2); 2.O80(2), 2Ů The short Ni-O distance [2.042(2)ŝ is associated with the coordination of a trigonal water molecule.
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    Journal Title
    Australian Journal of Chemistry
    Volume
    37
    DOI
    https://doi.org/10.1071/CH9840921
    Subject
    Chemical sciences
    Publication URI
    http://hdl.handle.net/10072/25008
    Collection
    • Journal articles

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