Institute of Experimental Mineralogy
Russian Academy of Sciences
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142432, Chernogolovka, Moscow district
A.V. Chichagov +7(496)52-22320
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*** W W W - X R A Y P O L ***
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PLATINUM
1, t-copper, g-platinum
Pt
Cubic F m3m Z = 4
Fm3m
18 .5 .1992
Ref.Str.:
Wyckoff R.W.G. (1964)
* Crystal Structures, 1, 10
R: ATOMIC. N.A.D.
Initial data from BDM-file
Lattice parameters (cub. angs.,degr.):
a = 3.9231 alpha = 90.0
b = 3.9231 beta = 90.0
c = 3.9231 gamma = 90.0
Unit cell volume (cub. angs.) = 60.38
Molar volume ( cub.cm/mol.) = 9.09
Co-ordinates, thermal parameters, occupation for atomic positions:
NoP x/a y/b z/c B(j) atom / occupation
1 0.0 0.0 0.0 0.0 Pt = 1.00
Co-ordinates for all atomic positions :
No NoP x/a y/b z/c
1 1 0.0 0.0 0.0
2 1 0.5 0.0 0.5
3 1 0.5 0.5 0.0
4 1 0.0 0.5 0.5
X-ray density (g/cm cub.) = 21.45
MU (1/cm) = 4290.866 Mass attenuation coefficient (cm**2/g) = 200.0
Selected interatomic distances (cation-anion,anion-anion):
NoP Atom Rad.sph. C.N. Distance NoP N.
(angs.) (angs.)
1 Pt 3.312 12
2.7741 1
2.7741 1
2.7741 1
2.7741 1
2.7741 1
2.7741 1
2.7741 1
2.7741 1
2.7741 1
2.7741 1
2.7741 1
2.7741 1
X-ray diffraction powder data (II), X-Ray W.L. = 1.54056(angs.):
No H K L Theta 2*Theta S LPG MF F I int.
( degree ) *100
1 1 1 1 19.882 39.763 0.221 14.63 8 237.7 181421.3
2 2 0 0 23.122 46.244 0.255 10.42 6 227.1 88464.9
3 2 2 0 33.735 67.469 0.36 4.47 12 197.1 57169.9
4 1 1 3 40.632 81.265 0.423 3.18 24 181.6 68988.2
5 2 2 2 42.856 85.712 0.442 2.97 8 177.2 20430.4
X-ray diffraction powder data (I)...X-Ray wave length = 1.54056 (angs.):
No H K L Theta 2*Theta d I int I int.n. I p.h.n. H(Si)
( degree ) (angstrem) *100 *100
1 1 1 1 19.882 39.763 2.265 181421.3 100.0 100.0 5.7
2 2 0 0 23.122 46.244 1.96155 88464.9 48.8 48.4 5.7
3 2 2 0 33.735 67.469 1.38703 57169.9 31.5 30.4 5.9
4 1 1 3 40.632 81.265 1.18286 68988.2 38.0 35.7 6.1
5 2 2 2 42.856 85.712 1.1325 20430.4 11.3 10.4 6.1
Reference:
Chichagov A.V. et al.
Information-Calculating System on Crystal Structure Data of Minerals
(MINCRYST)
- Kristallographiya, v.35, n.3, 1990, p.610-616 (in Russian)
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