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 *** *********************** TITANIUM 1, at 25'C Ti Hexagonal P 6(3)/mmc Z = 2 P6(3)/mmc 9 .7 .1992 Ref.Str.: Wyckoff R.W.G. (1963) * Crystal Structures, 1, 9-11 R: ATOMIC. N.A.D. Initial data from BDM-file Lattice parameters (cub. angs.,degr.): a = 2.95 alpha = 90.0 b = 2.95 beta = 90.0 c = 4.686 gamma = 120.0 Unit cell volume (cub. angs.) = 35.32 Molar volume ( cub.cm/mol.) = 10.64 Co-ordinates, thermal parameters, occupation for atomic positions: NoP x/a y/b z/c B(j) atom / occupation 1 0.3333 0.6667 0.25 0.0 Ti = 1.00 Co-ordinates for all atomic positions : No NoP x/a y/b z/c 1 1 0.3333 0.6667 0.25 2 1 0.6667 0.3333 0.75 X-ray density (g/cm cub.) = 4.5 MU (1/cm) = 936.613 Mass attenuation coefficient (cm**2/g) = 208.0 Selected interatomic distances (cation-anion,anion-anion): NoP Atom Rad.sph. C.N. Distance NoP N. (angs.) (angs.) 1 Ti 3.504 12 2.95 1 2.95 1 2.95 1 2.95 1 2.95 1 2.95 1 2.8966 1 2.8966 1 2.8967 1 2.8967 1 2.8966 1 2.8966 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 0 0 17.548 35.096 0.196 19.26 6 16.4 2498.6 2 0 0 2 19.193 38.387 0.213 15.82 2 31.8 2560.7 3 1 0 1 20.084 40.169 0.223 14.3 12 27.0 10052.5 4 1 0 2 26.492 52.985 0.29 7.65 12 13.7 1387.1 5 1 1 0 31.482 62.963 0.339 5.19 6 25.0 1553.7 6 1 0 3 35.31 70.621 0.375 4.07 12 20.2 1594.2 7 2 0 0 37.086 74.172 0.391 3.7 6 11.3 227.6 8 1 1 2 38.104 76.208 0.401 3.53 12 22.2 1676.8 9 2 0 1 38.683 77.367 0.406 3.44 12 19.1 1202.7 10 0 0 4 41.111 82.221 0.427 3.13 2 21.2 225.7 11 2 0 2 43.378 86.756 0.446 2.93 12 10.3 296.9 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 0 0 17.548 35.096 2.55477 2498.6 24.9 25.0 5.7 2 0 0 2 19.193 38.387 2.343 2560.7 25.5 25.5 5.7 3 1 0 1 20.084 40.169 2.24307 10052.5 100.0 100.0 5.7 4 1 0 2 26.492 52.985 1.72677 1387.1 13.8 13.6 5.8 5 1 1 0 31.482 62.963 1.475 1553.7 15.5 15.0 5.9 6 1 0 3 35.31 70.621 1.33265 1594.2 15.9 15.2 5.9 7 2 0 0 37.086 74.172 1.27739 227.6 2.3 2.2 6.0 8 1 1 2 38.104 76.208 1.24825 1676.8 16.7 15.8 6.0 9 2 0 1 38.683 77.367 1.23242 1202.7 12.0 11.3 6.0 10 0 0 4 41.111 82.221 1.1715 225.7 2.2 2.1 6.1 11 2 0 2 43.378 86.756 1.12154 296.9 3.0 2.7 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) |