Re: atomic position

2016-06-15 Thread Armel Le Bail
You might like to add it to COD :-) Sure. Let me a few days to add the 50 crystal structures lacking in the Crystallography Open Database. There is some opposition in the world to attain this target and not a lot of help from the crystallographers themselves (one should ask why :-().

Re: atomic position

2016-06-15 Thread Alan Hewat
> > About Ba2TeO5, it is said that it is isomorphous with Ba2WO5 and Sr2WO5. > Ba2WO5 belongs to the K2VO2F3 structure type... > > BTW Armel, Ba2WO5 itself has been determined according to Google: A more accessible and interesting reference is for the isomorphous Ba2ReO5: "An investigation of

Re: atomic position

2016-06-15 Thread Alan Hewat
> > About Ba2TeO5, it is said that it is isomorphous with Ba2WO5 and Sr2WO5. > > Good work Armel. Yes, sharing of open databases is encouraged :-) But > please don't attach files. > > BTW Armel, Ba2WO5 itself has been determined according to Google:

RE: atomic position

2016-06-14 Thread Julian Richard Tolchard
ubject: Re: atomic position On 14 June 2016 at 10:16, Matteo Leoni <matteo.le...@unitn.it<redir.aspx?REF=Rw4yl-ix4B1fEJY52pj7ZLvgMQYmpvJP1hlVivJnc2RUdbAOg5TTCAFtYWlsdG86bWF0dGVvLmxlb25pQHVuaXRuLml0>> wrote: However, please update your records. The PDF-4+ is not the PDF-2. The PDF-4+

Re: atomic position

2016-06-14 Thread Alan Hewat
So far as I know (I may be wrong :-) ordered atomic positions for the two requested compounds, with supposed formulae *Ba2TeO4 *and *Ba2TeO5*, have not been determined. The closest I found were as I wrote: *"Sr Te O6 and Ba Te O6

Re: atomic position

2016-06-14 Thread Miguel Delgado
Dear All, For more information about the PDF-4+, feel free to visit the following page: http://www.icdd.com/products/pdf4.htm Kind Regards, Miguel Delgado On 6/14/2016 4:16 AM, Matteo Leoni wrote: dear everybody, I think there is some misconception here. It is true that the PDF-4+ is a

Re: atomic position

2016-06-14 Thread Edward Laitila
Try Pearson's Crystal database on CD he also has one published Pearson's handbook of crystallographic data. Regards, Ed On Mon, Jun 13, 2016 at 9:29 PM, Rachid Abkar wrote: > I need please atomic position for both structure Ba2TeO4 space group > pbcn(60) and Ba2TeO5

Re: atomic position

2016-06-14 Thread Alan Hewat
On 14 June 2016 at 10:16, Matteo Leoni wrote: > However, please update your records. The PDF-4+ is not the PDF-2. The > PDF-4+ ... contains also most of the ICSD coordinates that have been > however thoroughly checked in house, quality marked, cross referenced and >

Re: atomic position

2016-06-14 Thread Matteo Leoni
dear everybody, I think there is some misconception here. It is true that the PDF-4+ is a commercial database: this means that sharing the information taken from the database (as recently done here) is an explicit violation of copyrights of ICDD and the violator might be legally prosecuted. When

RE: atomic position

2016-06-14 Thread davide levy
Try to search here http://www.crystallography.net/cod/search.html Davide From: rietveld_l-requ...@ill.fr [mailto:rietveld_l-requ...@ill.fr] On Behalf Of Rachid Abkar Sent: Tuesday, June 14, 2016 4:29 AM To: Rietveld_l@ill.fr Subject: atomic position I need please atomic position for

Re: atomic position

2016-06-14 Thread Alan Hewat
> > maybe they are in PDF4. > PDF4 is a commercial database of d-spacings and unit cells derived from them. It does not normally contain atomic positions, and not all structures in PDF4 have been determined. ICSD does contain atomic positions if they have been determined. Both PDF4 and ICSD are

Re: Atomic position for alumina

2004-07-19 Thread Jose.M.Amigo
Dear Riza: I think you have not a crystallographic problem; it is a chemical problem. Perhaps you must revise your chemical syntesis. It seems to me you get some impurity phase probably with alumina. Good luck. Yours sincerely, Jose M. Amigo University of Valencia Department of Geology 46100 -