Symmetries
Supported
The following point-group symmetries are supported in PFT2 and EM3DR2
Symmetry
|
Schoenflies
Notation
|
H-M
notation
|
Supported in
|
PFT2
|
EM3DR2
|
asymmetry
|
C1
|
1
|
yes
|
yes
|
cyclic
(2-31 fold)
|
Cn
|
2-31
|
yes
|
yes
|
dihedral
(2-9 fold)
|
Dn
|
n22
(even), n2 (odd)
|
yes
|
yes
|
tetrahedral
|
T
|
use
Schoenflies
|
yes
|
no*
|
octahedral
|
O
|
432
|
yes
|
no*
|
icosahedral
|
I90**
|
532
|
yes
|
yes
|
*Use breconstruct from the Bsoft package or another reconstruction
program for these symmetries.
**This convention of icosahedral symmetry is rotated 90 deg. about the
z-axis from the standard
icosahedral orientation of the 3DEM
Image Conventions.
Back to main
PFT2/EM3DR2 page
2 Dec 2006