[Wien] Bug report: find mistale with space group 141 - I41/amd
Dong YuHui
dongyh at mail.ihep.ac.cn
Mon Sep 22 17:05:13 CEST 2003
Dear Peter Blaha,
During the calculation of the TiO2 anatase phase, I input the space group
141 - I41/amd, the program generatet the structure file as
TiO2-ana.struct, which is not consistent with the .cif file from ICSD
(TiO2-1.cif) and also the data from International Tables for
Crystallography.
The diatance between Ti and O is too samll and the calculation can not go
on.
TiO2-ana.struct
B LATTICE,NONEQUIV.ATOMS: 2141_I41/amd
MODE OF CALC=RELA unit=ang
7.160553 7.160553 18.022325 90.000000 90.000000 90.000000
ATOM -1: X=0.00000000 Y=0.00000000 Z=0.00000000
MULT= 4 ISPLIT= 8
ATOM -1:X= 0.25000000 Y=0.75000000 Z=0.25000000
ATOM -1:X= 0.00000000 Y=0.50000000 Z=0.00000000
ATOM -1:X= 0.25000000 Y=0.25000000 Z=0.75000000
Ti NPT= 781 R0=0.00005000 RMT= 2.0000 Z: 22.0
LOCAL ROT MATRIX: 1.0000000 0.0000000 0.0000000
0.0000000 1.0000000 0.0000000
0.0000000 0.0000000 1.0000000
ATOM 2: X=0.00000000 Y=0.00000000 Z=0.28010000
MULT= 8 ISPLIT= 8
ATOM 2:X= 0.00000000 Y=0.00000000 Z=0.71990000
ATOM 2:X= 0.25000000 Y=0.75000000 Z=0.53010000
ATOM 2:X= 0.25000000 Y=0.75000000 Z=0.96990000
ATOM 2:X= 0.00000000 Y=0.50000000 Z=0.28010000
ATOM 2:X= 0.00000000 Y=0.50000000 Z=0.71990000
ATOM 2:X= 0.25000000 Y=0.25000000 Z=0.03010000
ATOM 2:X= 0.25000000 Y=0.25000000 Z=0.46990000
O NPT= 781 R0=0.00010000 RMT= 2.0000 Z: 8.0
The positions of Ti should be (0, 0, 0), (0, 1/2, 1/4), (1/2, 1/2, 1/2),
and (1/2, 0, 3/4) according to the International Tables of
Crystallography. Also the positions of O are not consistent with the
tables.
Regards,
Yu-Hui Dong
More information about the Wien
mailing list