Name: | DOWNEYITE | ||

Specification: | [2], syn, at 139^{o}K | ||

Formula: | SeO_{2} | ||

Symmetry Class: | tetragonal | ||

Space Group: | P 4(2)/mbc | ||

Unit CellParameters: | a = 8.3218 | c = 5.0541 | ||

Number of Formula Unit: | Z = 8 | Unit Cell Volume, Å: ^{3} | V = 350.01_{c} |

Number of Atomic Position: per full Unit Cell | P/U = 24 | Molar Volume, cm: ^{3}/mol | V = 26.35_{m} |

Number of Reflexes used in: Structure Determination | - | X-ray density, g/cm^{3}: | p = 4.21 |

R-factor: | - | MU, 1/cm: | µ = 287.787 |

Wave Length for Calculated: Powder Diffraction Patterns | Cu=1.54056 | Mass attenuation coefficient,: cm ^{2}/g | µ/p = 68.358 |

Theta-Interval for CPDP: | T/I = 1-45 |