The ABINIT Users Mailing List ( CLOSED )

[mmikami@rc.m-kagaku.co.jp]

Hi Folks,

Just by Googling, I noticed the following page wherein
"B1a1" might be used as a notation somewhere :
  http://icsd.ill.fr/icsd/help/spaceg.html
  or http://crystal.fiz-karlsruhe.de/fiz/products/icsd/spaceg.html
But I don't know it, neither... sginfo also says, "Unknown Space Group  
Name."
(siginfo: http://www.abinit.org/wws/arc/forum/2003-08/msg00021.html
"Dank u," Jouk !)

The following URLs might be helpful for the other questions in the  
original e-mail :
- http://www.abinit.org/ABINIT/Infos_v4.1/spacegrouphelpfile.htm
  (kindly click the hyperlink of "the table entries or the table  
***content***")
- http://www.kristall.ethz.ch/LFK/software/sginfo/hall_symbols.html
-  
http://aclinux1.chemie.uni-hamburg.de/~xray/sginfo/sginfo_listtable.html
- http://www.crystal.uwa.edu.au/cc_symmetry.shtml
- http://ylp.icpet.nrc.ca/SGHT/
  (Hypertables of  International  Tables: 1983, 1952 and 1935; and  
Wyckoff 1922)

Regards,
Masayoshi

P.S. If one wants to post a new question, please do not post it as a  
follow-up.
You might understand this by taking a glance at the following page:
http://www.abinit.org/wws/arc/forum/2003-08/thrd2.html
I just thought that new question should be started as a root, not a  
branch ...

On 2003.8.31, at 23:13 Asia/Tokyo, Masatake Takahashi wrote:

> To hu fenglan and abinit users
>
> On B1a1 structure,
> B1a1 is not in the International Table A.
> So you should make B1a1 structure from P1a1.
> B-faced symmetry should be added.
> I think it can be done using "symrel" and "tnons",
> but I have not done this modification.
>
> I appreciate any infomation on this.
>
> On other questions (VCA, and dynamical matrix at gammma),
> please read Help file and/or FAQ.
>
> With regards.
>
> Masatake Takahashi
>
> > Dear everyone,
> >
> > I can not find the symbol"B1a1". Which sapce group is equivalent to  
> > it.
> > And what is the difference among the symbols "B2cb" ,"B1a1"  
> > ,"Bb21m","B21bm"
> > Furthermore ,for a crystal structue can these all it sapce group?
> >
> > Thank you.
> > hu