Name: | CORUNDUM | ||
Specification: | [1], alpha, structure type - corundum | ||
Formula: | Al2O3 | ||
Symmetry Class: | trigonal | ||
Space Group: | R 3(-)c | ||
Unit Cell Parameters: | a = 4.7540 | c = 12.9900 | ||
Number of Formula Unit: | Z = 6 | Unit Cell Volume, Å3: | Vc = 254.25 |
Number of Atomic Position per full Unit Cell: | P/U = 30 | Molar Volume, cm3/mol: | Vm = 25.52 |
Number of Reflexes used in Structure Determination: | - | X-ray density, g/cm3: | p = 3.99 |
R-factor: | - | MU, 1/cm: | µ = 124.360 |
Wave Length for Calculated Powder Diffraction Patterns: | Cu=1.54056 | Mass attenuation coefficient, cm2/g: | µ/p = 31.135 |
Theta-Interval for CPDP: | T/I = 1-45 |