Browsing by Author "Williams, Jack M."
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- The alleged existence of partially oxidized Mg[Pt(CN)4]Cl0.28.7H2O and the attempted preparation of the analogous beryllium(2+) and barium(2+) derivatives. A caveatKoch, Timothy R.; Gebert, E.; Williams, Jack M. (American Chemical Society, 1976-06)
- Structural studies of precursor and partially oxidized conducting complexes. II. A neutron diffraction study of disodium dibromotetracyanoplatinate dihydrateMaffly, Robert L.; Johnson, Paul L.; Koch, Timothy R.; Williams, Jack M. (International Union of Crystallography, 1977-02-01)Na2[Pt(CN)4Br2]. 2H2O, orthorhombic, Pnma (D2h16), a = 11.949(11), b = 15.124(14), c = 6.487 (6) Å, Z = 4, Dm = 3.06, Dx = 3.065 g cm-3. A room-temperature, single-crystal neutron diffraction study was performed. The structure was solved by direct methods and refined by full-matrix least-squares techniques to R(F02) = 0.068 for 1447 observed reflections > 1σ(F02). The structure consists of octahedrally coordinated platinum (IV) complex anions interacting with both the sodium cations and the waters of hydration.
- Structural studies of precursor and partially oxidized conducting complexes. VI. A neutron diffraction study of dicesium tetracyanoplatinate(II) monohydrateJohnson, Paul L.; Koch, Timothy R.; Williams, Jack M. (International Union of Crystallography, 1977-04-15)
- Structural studies of precursor and partially oxidized conducting complexes. VII. A neutron diffraction study of disodium tetracyanoplatinate(II) trihydrateJohnson, Paul L.; Koch, Timothy R.; Williams, Jack M. (International Union of Crystallography, 1977-06-01)
- Structural studies of precursor and partially oxidized conducting complexes. XI. A neutron diffraction study of barium dibromotetracyanoplatinate(IV) hydrateKoch, Timothy R.; Johnson, Paul L.; Washecheck, Donald M.; Cornish, Thomas L.; Williams, Jack M. (International Union of Crystallography, 1977-10-01)Ba[Pt(CN)4Br2].4.5H2O, tetragonal, P4/ mnc (D4h6,), a = 9.425 (3), c = 17.085 (6) A, Z = 4, Dm = 2.96, Dc = 2.96 g cm-3. The structure was determined by direct methods. 2842 reflections were collected with single-crystal neutron-diffraction techniques and yielded 1217 independent reflections upon averaging; these were refined to an agreement factor of R(Fo2)=0.056 for all observed data and R(FO2)= 0.053 for 999 data with FO2 > lσ (FO2). The structure consists of octahedrally coordinated PtIV metal atoms, one Ba2+ ion, and two H2O molecules (one O and five H atoms are in crystallographic disorder). The Ba2+ ion is highly coordinated with nine nearest neighbors.
- X-ray diffuse scattering of one-dimensional tetracyanoplatinate saltsSchultz, A. J.; Stucky, G. D.; Williams, Jack M.; Koch, Timothy R.; Maffly, R. L. (Elsevier, 1977-01)