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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TETRAFERROPLATINUM
4, t-tetraferroplatinum, analogue
[Fe(0.5)Co(0.5)]Pt
Tetragonal P 4/mmm Z = 1
P4/mmm
20 .2 .24
Ref.Str.:
Woolley J.C., Bates B. (1959)
* J. Less-Common Metals, 1, 382-389
R: N.A.D.
Initial data from BDM-file
Lattice parameters (cub. angs.,degr.):
a = 2.71 alpha = 90.0
b = 2.71 beta = 90.0
c = 3.718 gamma = 90.0
Unit cell volume (cub. angs.) = 27.31
Molar volume ( cub.cm/mol.) = 16.45
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 Fe = 0.5 , Co = 0.5
2 0.5 0.5 0.5 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 2 0.5 0.5 0.5
X-ray density (g/cm cub.) = 15.35
MU (1/cm) = 3650.429 Mass attenuation coefficient (cm**2/g) = 237.825
Selected interatomic distances (cation-anion,anion-anion):
NoP Atom Rad.sph. C.N. Distance NoP N.
(angs.) (angs.)
1 Fe ,Co 3.024 4
2.71 1
2.71 1
2.71 1
2.71 1
2 Pt 2.28 0
X-ray diffraction powder data (II), X-Ray W.L. = 1.78892(angs.):
No H K L Theta 2*Theta S LPG MF F I int.
( degree ) *100
1 0 0 1 13.921 27.841 0.134 31.72 2 48.7 20139.6
2 1 0 0 19.272 38.545 0.185 15.67 4 46.4 18127.1
3 1 0 1 24.106 48.213 0.228 9.48 8 83.6 71129.9
4 1 1 0 27.825 55.65 0.261 6.84 4 80.0 23485.8
5 0 0 2 28.761 57.521 0.269 6.35 2 79.1 10659.2
6 1 1 1 31.677 63.353 0.294 5.12 8 41.6 9515.0
7 1 0 2 35.695 71.391 0.326 3.99 8 40.3 6958.9
8 2 0 0 41.309 82.618 0.369 3.11 4 69.0 7933.7
9 1 1 2 42.095 84.19 0.375 3.03 8 68.5 15241.0
10 2 0 1 44.635 89.27 0.393 2.85 8 37.9 4390.3
X-ray diffraction powder data (I)...X-Ray wave length = 1.78892 (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 0 0 1 13.921 27.841 3.718 20139.6 28.3 28.9 5.6
2 1 0 0 19.272 38.545 2.71 18127.1 25.5 25.7 5.7
3 1 0 1 24.106 48.213 2.18999 71129.9 100.0 100.0 5.7
4 1 1 0 27.825 55.65 1.91626 23485.8 33.0 32.7 5.8
5 0 0 2 28.761 57.521 1.859 10659.2 15.0 14.8 5.8
6 1 1 1 31.677 63.353 1.70333 9515.0 13.4 13.1 5.9
7 1 0 2 35.695 71.391 1.53298 6958.9 9.8 9.5 5.9
8 2 0 0 41.309 82.618 1.355 7933.7 11.2 10.5 6.1
9 1 1 2 42.095 84.19 1.3343 15241.0 21.4 20.1 6.1
10 2 0 1 44.635 89.27 1.27309 4390.3 6.2 5.7 6.2
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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