Crystallography of Some High-Pressure Forms of C6H6, CS2, Br2, CCl4, and KNO3

  • C. E. Weir
    Institute for Materials Research, National Bureau of Standards, Washington, D.C. 20234
  • G. J. Piermarini
    Institute for Materials Research, National Bureau of Standards, Washington, D.C. 20234
  • S. Block
    Institute for Materials Research, National Bureau of Standards, Washington, D.C. 20234

抄録

<jats:p>From single crystal x-ray diffraction at high pressure and room temperature unit-cell and space-group data were obtained for the following materials: C6H6, I—orthorhombic, a = 7.17, b = 9.28, c = 6.65, Pbca, CS2—orthorhombic, a = 6.16, b = 5.38, c = 8.53, Cmca, Br2—orthorhombic, a = 8.54, b = 6.75, c = 8.63, Cmca, CCl4, I—rhombohedral, a = 14.27, α = 90°, CCl4, II—monoclinic, a = 22.10, b = 11.05, c = 25.0, β = 114°, Cc or C2 / c, CCl4, III—orthorhombic, a = 11.16, b = 14.32, c = 5.74, C2221, KNO3, III—rhombohedral, a = 4.31, α = 78°54′, KNO3, IV(?)—orthorhombic, a = 5.58, b = 7.52, c = 6.58, P2lnb or Pmnb. All unit-cell dimensions are given in angstroms with estimated uncertainties of ± 2 in the last decimal place given and uncertainties of ± 0.5 deg in angles.</jats:p>

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