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  • 1
    Electronic Resource
    Electronic Resource
    Bis[4,4′-bipyridinium(2+)] hexacosaoxooctamolybdate (2001)
    Copenhagen : International Union of Crystallography (IUCr)
    Acta crystallographica 57 (2001), S. m349-m351 
    Details
    ISSN: 1600-5368
    Source: Crystallography Journals Online : IUCR Backfile Archive 1948-2001
    Topics: Chemistry and Pharmacology , Geosciences , Physics
    Notes: The title compound, (C10H10N2)2[Mo8O26], was produced by hydrothermal reaction of an acidified aqueous solution of H2MoO4, 4,4′-bipyridine and NiCl2·6H2O. The structure of the title compound consists of the β-octamolybdate anion having a center of symmetry and protonated 4,4′-bipyridine cations. The distances between Mo and O atoms shared by two or more neighboring {MoO6} octahedra are in the range 1.750 (2)–2.450 (2) Å and those between Mo and terminal O atoms in the range 1.696 (3)–1.720 (3) Å. The N—H...O hydrogen-bond lengths are in the range 2.722 (4)-2.755 (4) Å.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1107/S1600536801010546
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  • 2
    Electronic Resource
    Electronic Resource
    [(CH3)2NH2]4[H4PMo12O40]Cl2·4H2O (2001)
    Copenhagen : International Union of Crystallography (IUCr)
    Acta crystallographica 57 (2001), S. m390-m392 
    Details
    ISSN: 1600-5368
    Source: Crystallography Journals Online : IUCR Backfile Archive 1948-2001
    Topics: Chemistry and Pharmacology , Geosciences , Physics
    Notes: The hydrothermal reaction of an aqueous solution of sodium molybdate, hypophosphorous acid, hydrochloric acid and N,N-dimethylformamide (DMF) gave rise to tetradimethylammonium tetrahydroxydotriacontaoxo(tetraoxophosphato)dodecamolybdate dihydrochloride tetrahydrate. The polyanion has a β-Keggin structure, with P—O distances ranging from 1.535 (5) to 1.552 (5) Å and Mo—O distances from 1.664 (4) to 2.509 (4) Å.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1107/S1600536801010467
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  • 3
    Electronic Resource
    Electronic Resource
    Tetrabutylammonium aquatetrachlorooxomolybdate(V) (2001)
    Copenhagen : International Union of Crystallography (IUCr)
    Acta crystallographica 57 (2001), S. m511-m513 
    Details
    ISSN: 1600-5368
    Source: Crystallography Journals Online : IUCR Backfile Archive 1948-2001
    Topics: Chemistry and Pharmacology , Geosciences , Physics
    Notes: Crystals of the title compound, [(C4H9)4N][MoOCl4(H2O)], were synthesized by the reaction of a hydrochloric acid solution of H2MoO4 and [(C4H9)4N]Cl with the reducing agent N2H4·2HCl. The structure consists of an [MoOCl4(H2O)] anion and a tetrabutylammonium cation. The MoV atom is coordinated by four chlorides, one terminal oxo and one aqua ligand in a distorted octahedral geometry. The Mo—Cl bond lengths are in the range 2.352 (2)–2.402 (1) Å, Mo—O(oxo) 1.647 (4) Å and Mo—OH2 2.340 (4) Å. Intermolecular O—H...Cl hydrogen bond lengths are in the range 3.232–3.336 Å for O...Cl.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1107/S1600536801016919
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