We found a match
Your institution may have rights to this item. Sign in to continue.
- Title
Chromium(V) Oxide Trichloride, and some Pentachlorido-oxido-chromate(V) Salts: Structures and Spectroscopic Characterization.
- Authors
Hector, Andrew L.; Levason, William; Light, Mark E.; Reid, Gillian; Sardar, Kripasindhu; Zhang, Wenjian
- Abstract
Crystalline CrOCl3 contains [Cl2OCr(μ-Cl)2CrOCl2] molecules with two square pyramidal CrOCl4 units sharing a common edge and with the Cr-O arranged anti, a new structure type for transition metal MO X3 compounds. Crystals are monoclinic with space group P21/ c, Z = 4, with a = 5.735(5), b = 13.738(7), c = 11.318(4) Å, α = 90°, β = 98.346(6)°, γ = 90°. Its IR and UV/Vis spectra are reported and compared with those of the C3 v monomer found in the gas phase. Structures are also reported for M2[CrOCl5] ( M = Cs or Rb) and show a pseudo-octahedral anion. Cs2[CrOCl5] adopts a K2PtCl6-type structure with [CrOCl5]2- ions randomly orientated, but Rb2[CrOCl5] is orthorhombic with space group Pnma with a = 13.6471(7), b = 9.9175(5), and c = 6.9562(4) Å. Rietveld refinement of the data on the rubidium salt gave Cr-O = 1.628(1), Cr-CltransO = 2.652(7), Cr-CltransCl = 2.239(8)-2.342(3) Å. Corresponding CrV oxide bromide species do not form.
- Publication
Zeitschrift für Anorganische und Allgemeine Chemie, 2013, Vol 639, Issue 6, p906
- ISSN
0044-2313
- Publication type
Article
- DOI
10.1002/zaac.201300084