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4 citations found for Black, C.
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research papers
A new V4+ layer structure, V2O2F4(H2O)2·H2O, built up of VOF4(H2O) corner- and edge-sharing octahedral building units, with structural relationships to previously synthesized vanadium oxyfluoride compounds, has been synthesized via solvothermal methods.
research papers
(CN3H6)3[VF6] has a cubic structure containing isolated VF6 octahedra and exhibiting structural relationships to perovskite.
organic compounds
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The title compound, C17H14BrNO2, was synthesized by the treatment of 5,7-dimethoxy-4-phenylquinolin-2-one with phosphoryl bromide in a Vilsmeier-type reaction. There are two independent molecules (A and B) in the asymmetric unit which differ by 11.2° in the orientation of the 4-phenyl ring with respect to the planar quinoline ring system [dihedral angles = 55.15 (8) and 66.34 (8)° in molecules A and B, respectively]. In the crystal structure, the independent molecules are linked via C—H
N and C—HO hydrogen bonds, forming centrosymmetric tetrameric units which are cross-linked through C—Hπ and C—Brπ interactions with Brcentroid distances of 3.4289 (8) and 3.5967 (8) Å.
N and C—HO hydrogen bonds, forming centrosymmetric tetrameric units which are cross-linked through C—Hπ and C—Brπ interactions with Brcentroid distances of 3.4289 (8) and 3.5967 (8) Å.
research papers
A new scattering geometry, grazing-incidence transmission small-angle X-ray scattering, is introduced. With this geometry the incident beam is at a grazing angle well above the critical angle and the scattered beam exits through the edge of the substrate. This geometry validates the Born approximation.
