[Wien] Crystal structure that XCrySDen cannot visualize

[Tomas Kana]

Dear Pablo, 
If you want to visualize this structure in XCrysDen, 

you may try to use 

x supercell 

make 1x1x1 supercell with zero shift and zero vacuum and use 

P when asked for lattice type. 

cp case_super.struct case.struct 

and try it again in XCrysden....

HTH 

Tomas 







"Dear WIEN2k community,
There is a strange thing with a crystal structure, I am playing with Gd and 
H2O, so I put the following structure (I erased some lines);
P LATTICE,NONEQUIV.ATOMS: 4 1_P1 
MODE OF CALC=RELA unit=ang 
7.558908 7.558908 9.448634 90.000000 90.000000121.000000 
ATOM -1: X=0.00000000 Y=0.00000000 Z=0.00000000
Gd NPT= 781 R0=0.00001000 RMT= 1.96 Z: 64.0 
ATOM -2: X=0.00000000 Y=0.00000000 Z=0.40000000
O NPT= 781 R0=0.00010000 RMT= 1.61 Z: 8.0 
ATOM -3: X=0.30000000 Y=0.40600000 Z=0.60000000
H NPT= 781 R0=0.00010000 RMT= 0.66 Z: 1.0 
ATOM -4: X=0.40600000 Y=0.30000000 Z=0.60000000
H NPT= 781 R0=0.00010000 RMT= 0.66 Z: 1.0 

SGroup changes it to;
CXZ LATTICE,NONEQUIV.ATOMS: 3 8 Cm
MODE OF CALC=RELA unit=ang 
7.444369 12.028936 13.157877 90.000000 90.000000128.233790
ATOM 1: X=0.00000000 Y=0.00000000 Z=0.00000000
Gd1 NPT= 781 R0=0.00001000 RMT= 1.96 Z: 64.0
ATOM 2: X=0.60000000 Y=0.60000000 Z=0.00000000
O 1 NPT= 781 R0=0.00010000 RMT= 1.61 Z: 8.0
ATOM 3: X=0.54700000 Y=0.40000000 Z=0.44700000
3: X=0.54700000 Y=0.40000000 Z=0.55300000
H 1 NPT= 781 R0=0.00010000 RMT= 0.66 Z: 1.0
and there is no problem visualizing with XCrySDen

But when I put gamma as 120 instead of 121
7.558908 7.558908 9.448634 90.000000 90.000000120.000000 

Then, with SGroup I get;
CXZ LATTICE,NONEQUIV.ATOMS: 3 8 Cm
MODE OF CALC=RELA unit=ang 
7.558908 12.100156 13.092413 90.000000 90.000000128.659811
ATOM 1: X=0.00000000 Y=0.00000000 Z=0.00000000
Gd1 NPT= 781 R0=0.00001000 RMT= 1.9600 Z: 64.0
ATOM 2: X=0.60000000 Y=0.60000000 Z=0.00000000
O 1 NPT= 781 R0=0.00010000 RMT= 1.6100 Z: 8.0
ATOM 3: X=0.54700000 Y=0.40000000 Z=0.44700000
3: X=0.54700000 Y=0.40000000 Z=0.55300000
H 1 NPT= 781 R0=0.00010000 RMT= 0.6600 Z: 1.0

Which has little differences such that there is a larger space after "RMT=" 
and the RMT is 1.9600 instead of 1.96, although these differences do not 
seem to be important.
Well, this structure cannot be visualized with XCrySDen

Pablo
=====================
Structure that cannot be visualized
more GdO-H2-C.struct
---------------------------------------
Title 
CXZ LATTICE,NONEQUIV.ATOMS: 3 8 Cm
MODE OF CALC=RELA unit=ang 
7.558908 12.100156 13.092413 90.000000 90.000000128.659811
ATOM 1: X=0.00000000 Y=0.00000000 Z=0.00000000
MULT= 1 ISPLIT= 8
Gd1 NPT= 781 R0=0.00001000 RMT= 1.9600 Z: 64.0
LOCAL ROT MATRIX: 1.0000000 0.0000000 0.0000000
0.0000000 1.0000000 0.0000000
0.0000000 0.0000000 1.0000000
ATOM 2: X=0.60000000 Y=0.60000000 Z=0.00000000
MULT= 1 ISPLIT= 8
O 1 NPT= 781 R0=0.00010000 RMT= 1.6100 Z: 8.0
LOCAL ROT MATRIX: 1.0000000 0.0000000 0.0000000
0.0000000 1.0000000 0.0000000
0.0000000 0.0000000 1.0000000
ATOM 3: X=0.54700000 Y=0.40000000 Z=0.44700000
MULT= 2 ISPLIT= 8
3: X=0.54700000 Y=0.40000000 Z=0.55300000
H 1 NPT= 781 R0=0.00010000 RMT= 0.6600 Z: 1.0
LOCAL ROT MATRIX: 1.0000000 0.0000000 0.0000000
0.0000000 1.0000000 0.0000000
0.0000000 0.0000000 1.0000000
2 NUMBER OF SYMMETRY OPERATIONS
1 0 0 0.00000000
0 1 0 0.00000000
0 0 1 0.00000000
1
1 0 0 0.00000000
0 1 0 0.00000000
0 0-1 0.00000000
2
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