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
5, t-tetraferroplatinum, analogue
[Ni(0.5)Co(0.5)]Pt
Tetragonal P 4/mmm Z = 1
P4/mmm
20 .2 .24
Ref.Str.:
Woolley J.C., Bates B. (1960)
* J. Less-Common Metals, 2, 11-18
R: N.A.D.
Initial data from BDM-file
Lattice parameters (cub. angs.,degr.):
a = 2.6975 alpha = 90.0
b = 2.6975 beta = 90.0
c = 3.6507 gamma = 90.0
Unit cell volume (cub. angs.) = 26.56
Molar volume ( cub.cm/mol.) = 16.0
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 Ni = 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.) = 15.87
MU (1/cm) = 3789.428 Mass attenuation coefficient (cm**2/g) = 238.831
Selected interatomic distances (cation-anion,anion-anion):
NoP Atom Rad.sph. C.N. Distance NoP N.
(angs.) (angs.)
1 Ni ,Co 3.0 4
2.6975 1
2.6975 1
2.6975 1
2.6975 1
2 Pt 2.268 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 14.182 28.365 0.137 30.49 2 47.5 19474.6
2 1 0 0 19.365 38.73 0.185 15.51 4 45.3 18065.5
3 1 0 1 24.349 48.697 0.23 9.27 8 84.4 74854.9
4 1 1 0 27.965 55.931 0.262 6.76 4 80.9 25074.1
5 0 0 2 29.342 58.684 0.274 6.07 2 79.6 10892.6
6 1 1 1 31.944 63.887 0.296 5.03 8 40.6 9368.6
7 1 0 2 36.276 72.551 0.331 3.86 8 39.2 6733.7
8 2 0 0 41.543 83.085 0.371 3.08 4 69.7 8498.9
9 1 1 2 42.707 85.414 0.379 2.98 8 69.0 16049.4
10 2 0 1 44.99 89.981 0.395 2.83 8 37.0 4378.9
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 14.182 28.365 3.6507 19474.6 26.0 26.5 5.6
2 1 0 0 19.365 38.73 2.6975 18065.5 24.1 24.4 5.7
3 1 0 1 24.349 48.697 2.1695 74854.9 100.0 100.0 5.7
4 1 1 0 27.965 55.931 1.90742 25074.1 33.5 33.2 5.8
5 0 0 2 29.342 58.684 1.82535 10892.6 14.6 14.4 5.8
6 1 1 1 31.944 63.887 1.69058 9368.6 12.5 12.3 5.9
7 1 0 2 36.276 72.551 1.51176 6733.7 9.0 8.7 6.0
8 2 0 0 41.543 83.085 1.34875 8498.9 11.4 10.7 6.1
9 1 1 2 42.707 85.414 1.31878 16049.4 21.4 20.1 6.1
10 2 0 1 44.99 89.981 1.26517 4378.9 5.8 5.4 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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