大陆
第1楼2008/10/02
*data for ICSD #53800
Coll Code 53800
Rec Date 2003/04/01
Mod Date 2006/04/01
Chem Name Tungsten
Structured W
Sum W1
ANX N
D(calc) 18.98
Title Die Atomanordnung von Wolfram
Author(s) Debye, P.
Reference Physikalische Zeitschrift
(1917), 18, 483-488
Physical Review (1,1893-132,1963/141,1966-188,1969)
(1921), 17, 571-587
Physical Review (1,1893-132,1963/141,1966-188,1969)
(1925), 25, 753-761
Physica (Amsterdam) (1,1921-13,1933)
(1926), 6, 64-69
Unit Cell 3.18 3.18 3.18 90. 90. 90.
Vol 32.16
Z 2
Space Group I m -3 m
SG Number 229
Cryst Sys cubic
Pearson cI2
Wyckoff a
Red Cell I 2.753 2.753 2.753 109.471 109.471 109.471 16.079
Trans Red 0.500 0.500 -0.500 / -0.500 0.500 0.500 / 0.500 -0.500 0.500
Comments Cell from 2nd reference: 3.156, from 3rd ref.: 3.161 and
3.163
Cell from 4th reference: 3.160
AE: W: rhombic dodecahedron: W8+6
SB: A2-type; also Fe (alpha)-type
The structure has been assigned a PDF number: 4-806
Structure type prototype : W
Structure type : W
No R value given in the paper.
At least one temperature factor missing in the paper.
Atom # OX SITE x y z SOF H
W 1 +0 2 a 0 0 0 1. 0
*end for ICSD #53800
song6670
第4楼2008/10/03
学习了.谢谢!有一个不懂就是上面那个F是代表什么意思?