Card No: 2493       Created: 12/03/1997    Last edition: 13/01/2009

Name: LAURELITE
Specification: [1], DF
Formula: Pb7F12Cl2
Symmetry Class: hexagonal
Space Group: P 6(-)
Unit Cell
Parameters:
a = 10.2670 | c = 3.9844
Number of Formula Unit: Z = 1Unit Cell Volume, Å3: Vc = 363.73
Number of Atomic Position
per full Unit Cell
:
P/U = 28 Molar Volume, cm3/mol: Vm = 219.09
Number of Reflexes used in
Structure Determination
:

NR = 693
X-ray density, g/cm3: p = 7.98
R-factor: R = 0.0350MU, 1/cm: µ = 2289.389
Wave Length for Calculated
Powder Diffraction Patterns
:
Co=1.78892Mass attenuation coefficient,
cm2/g
:
µ/p = 286.769
Theta-Interval for CPDP: T/I = 1-45