Institute of Experimental Mineralogy Russian Academy of Sciences ------------------------------------------------- 142432, Chernogolovka, Moscow district A.V. Chichagov +7(496)52-22320 *** *** W W W - X R A Y P O L *** *********************** KALININITE 7, t-spinel, Se-analogue ZnCr(2)Se(4) Cubic F d3m Z = 8 Fd3m 28 .5 .18 Ref.Str.: Raccah P.M., Bouchard R.J., Wold A. (1966) * J. Appl. Physics, 37, 543-555 R: N.A.D. Initial data from BDM-file Lattice parameters (cub. angs.,degr.): a = 10.44 alpha = 90.0 b = 10.44 beta = 90.0 c = 10.44 gamma = 90.0 Unit cell volume (cub. angs.) = 1137.89 Molar volume ( cub.cm/mol.) = 85.67 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 Zn = 1.00 2 0.625 0.625 0.625 0.0 Cr = 1.00 3 0.3849 0.3849 0.3849 0.0 Se = 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 0.625 0.625 0.625 3 3 0.3849 0.3849 0.3849 4 1 0.75 0.75 0.25 5 1 0.0 0.5 0.5 6 1 0.25 0.75 0.75 7 2 0.125 0.375 0.875 8 2 0.375 0.875 0.125 9 2 0.875 0.125 0.375 10 3 0.3651 0.1349 0.6349 11 3 0.6151 0.1151 0.8849 12 3 0.6349 0.3651 0.1349 13 1 0.75 0.25 0.75 14 1 0.5 0.0 0.5 15 2 0.125 0.875 0.375 16 2 0.875 0.375 0.125 17 2 0.375 0.125 0.875 18 3 0.3651 0.6349 0.1349 19 3 0.1151 0.6151 0.8849 20 3 0.1349 0.3651 0.6349 21 1 0.25 0.25 0.25 22 1 0.5 0.5 0.0 23 2 0.375 0.375 0.625 24 2 0.375 0.625 0.375 25 2 0.125 0.625 0.125 26 2 0.875 0.625 0.875 27 2 0.125 0.125 0.625 28 2 0.625 0.375 0.375 29 2 0.625 0.125 0.125 30 2 0.625 0.875 0.875 31 2 0.875 0.875 0.625 32 3 0.6151 0.6151 0.3849 33 3 0.1349 0.8651 0.1349 34 3 0.8849 0.3849 0.8849 35 3 0.6349 0.8651 0.6349 36 3 0.8849 0.8849 0.3849 37 3 0.8651 0.1349 0.1349 38 3 0.3849 0.8849 0.8849 39 3 0.8651 0.6349 0.6349 40 3 0.1151 0.1151 0.3849 41 3 0.3849 0.6151 0.6151 42 3 0.6151 0.3849 0.6151 43 3 0.1349 0.6349 0.3651 44 3 0.8651 0.3651 0.3651 45 3 0.1151 0.3849 0.1151 46 3 0.8849 0.6151 0.1151 47 3 0.3651 0.3651 0.8651 48 3 0.6349 0.6349 0.8651 49 3 0.6151 0.8849 0.1151 50 3 0.3849 0.1151 0.1151 51 3 0.3651 0.8651 0.3651 52 3 0.6349 0.1349 0.3651 53 3 0.8651 0.8651 0.8651 54 3 0.1349 0.1349 0.8651 55 3 0.8849 0.1151 0.6151 56 3 0.1151 0.8849 0.6151 X-ray density (g/cm cub.) = 5.66 MU (1/cm) = 978.454 Mass attenuation coefficient (cm**2/g) = 172.787 Selected interatomic distances (cation-anion,anion-anion): NoP Atom Rad.sph. C.N. Distance NoP N. (angs.) (angs.) 1 Zn 3.312 4 2.4393 3 2.4393 3 2.4393 3 2.4393 3 2 Cr 3.312 6 2.5109 3 2.5109 3 2.5109 3 2.5109 3 2.5109 3 2.5109 3 3 Se 4.632 12 3.6969 3 3.6969 3 3.6969 3 3.6969 3 3.3988 3 3.9834 3 3.3988 3 3.3988 3 3.6969 3 3.9834 3 3.9834 3 3.6969 3 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 1 1 1 8.534 17.068 0.083 87.88 8 113.4 698.6 2 2 2 0 14.024 28.048 0.135 31.22 12 228.0 1503.8 3 1 1 3 16.508 33.017 0.159 22.0 24 274.2 3066.3 4 2 2 2 17.265 34.53 0.166 19.96 8 577.9 4118.5 5 4 0 0 20.042 40.084 0.192 14.37 6 947.2 5974.2 6 3 3 1 21.929 43.858 0.209 11.75 24 120.2 314.4 7 4 2 0 22.529 45.059 0.214 11.05 24 0.0 0.0 8 2 2 4 24.817 49.635 0.235 8.88 24 172.0 486.8 9 1 1 5 26.435 52.871 0.249 7.69 24 430.2 2637.0 10 3 3 3 26.435 52.871 0.249 7.69 8 42.3 8.5 11 4 4 0 28.99 57.98 0.271 6.24 12 1157.4 7740.6 12 5 3 1 30.455 60.911 0.283 5.58 48 71.4 105.4 13 4 4 2 30.934 61.869 0.287 5.39 24 45.7 20.8 14 6 2 0 32.811 65.621 0.303 4.74 24 131.5 151.9 15 3 3 5 34.182 68.363 0.314 4.35 24 215.8 375.6 16 2 2 6 34.633 69.265 0.318 4.23 24 436.3 1493.9 17 4 4 4 36.412 72.823 0.332 3.83 8 716.9 1217.7 18 1 1 7 37.723 75.447 0.342 3.59 24 108.2 77.9 19 5 5 1 37.723 75.447 0.342 3.59 24 227.2 343.5 20 6 4 0 38.157 76.314 0.345 3.52 24 0.0 0.0 21 6 4 2 39.877 79.754 0.358 3.27 48 180.2 393.8 22 5 5 3 41.155 82.309 0.368 3.12 24 340.1 669.2 23 7 3 1 41.155 82.309 0.368 3.12 48 31.4 11.4 24 8 0 0 43.268 86.536 0.383 2.93 6 930.7 1177.6 25 3 3 7 44.531 89.061 0.392 2.85 24 247.9 325.1 26 4 4 6 44.951 89.902 0.395 2.83 24 37.0 7.2 27 8 2 0 44.951 89.902 0.395 2.83 24 0.0 0.0 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 1 1 1 8.534 17.068 6.02754 698.6 9.0 9.4 5.6 2 2 2 0 14.024 28.048 3.6911 1503.8 19.4 20.1 5.6 3 1 1 3 16.508 33.017 3.14778 3066.3 39.6 40.7 5.6 4 2 2 2 17.265 34.53 3.01377 4118.5 53.2 54.6 5.7 5 4 0 0 20.042 40.084 2.61 5974.2 77.2 78.8 5.7 6 3 3 1 21.929 43.858 2.3951 314.4 4.1 4.1 5.7 7 2 2 4 24.817 49.635 2.13106 486.8 6.3 6.4 5.7 8 1 1 5 26.435 52.871 2.00918 2645.5 34.2 34.4 5.8 9 4 4 0 28.99 57.98 1.84555 7740.6 100.0 100.0 5.8 10 5 3 1 30.455 60.911 1.76468 105.4 1.4 1.4 5.8 11 6 2 0 32.811 65.621 1.65071 151.9 2.0 1.9 5.9 12 3 3 5 34.182 68.363 1.59209 375.6 4.9 4.8 5.9 13 2 2 6 34.633 69.265 1.57389 1493.9 19.3 19.0 5.9 14 4 4 4 36.412 72.823 1.50688 1217.7 15.7 15.3 6.0 15 5 5 1 37.723 75.447 1.46189 421.5 5.4 5.3 6.0 16 6 4 2 39.877 79.754 1.3951 393.8 5.1 4.9 6.0 17 5 5 3 41.155 82.309 1.35917 680.6 8.8 8.4 6.1 18 8 0 0 43.268 86.536 1.305 1177.6 15.2 14.4 6.1 19 3 3 7 44.531 89.061 1.27545 325.1 4.2 3.9 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) |