COL  ICSD Collection Code 66466
 DATE Recorded Jan 6, 1993; updated Jun 26, 1998
 NAME Carbon
 MINR Diamond 4H
 FORM C
      = C
 TITL Calculated x-ray diffraction data for diamond polytypes
 REF  Journal of the American Ceramic Society
      JACTA 75 (1992) 1876-1883
 REF  Journal of Materials Research
      JMREE 5 (1990) 2272-2285
 AUT  Ownby P D, YangÿX, LiuÿJ
 CELL a=2.522 b=2.522 c=8.237 à=90.0 á=90.0 ç=120.0
      V=45.4 Z=8
 SGR  P 63/m m c    (194) - hexagonal
 CLAS 6/mmm (Hermann-Mauguin) - D6h (Schoenflies)
 PRS  hP8
 ANX  N
 PARM Atom__No OxStat  Wyck ---X--- ---Y--- ---Z---  -SOF-
      C      1  0.000    4e  0.      0.      0.09375
      C      2  0.000    4f  1/3     2/3     0.15625
 WYCK f e
 REM  THE (structure thoretically calculated)
 REM  COR (correction of earlier work)
 TEST No R value given in the paper. (Code 51)
 TEST At least one temperature factor missing in the paper. (Code 53)