Institute of Experimental Mineralogy
                 Russian Academy of Sciences
     -------------------------------------------------
           142432, Chernogolovka, Moscow district
             A.V. Chichagov  +7(496)52-22320

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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)