Hi, Armel! I, personally, don't like constraints since I prefer being surprised to getting satisfied ;-). However, in our imperfect world constraints happen to...
... The more you constrain, the less you talk. Nice rule. We need rules. But this one eliminates all protein structures from the powder diffraction field, and...
... Nowadays scientific publications tend to be so much "talkative" that certain soft restraints and constraints on the discussion would be helpful everywhere....
One classic example of a powder structure with vastly higher quality than a corresponding single crystal structure is C60 at low temperature. The single...
pstephens@...
May 3, 2009 3:10 pm
2377
Hi, ... Higher quality because the "single crystal" was not a true single crystal. Armel...
Hi, Just to tell my astonishment at seeing how fast some chemists/crystallographers may react to the actuality. I have one paper online in Acta E March 6, 2009...
Dear All Does anyone know a program that converts GSAS reflist files into Shelx-friendly hkl format? Thanks for your help. Regards Franz Werner -- Neu: GMX...
Franz Werner
FranzWerner@...
May 14, 2009 11:10 am
2382
... ...and now this magic is available for everyone. Nice paper for anyone concerned about un-modelled impurities: J. Appl. Cryst. (2009). 42, 385-391 [...
Dear All, A new version (1.7) of the Derivative Difference Minimization program DDM is available at: www.icct.ru/Eng/Content/Persons/Sol_LA/ddm.html mirrors: ...
Dear All, I need a crystal structure of Cu3 Si compound, kindly sent the details or any publications (e_papers). I found in JCPDF, it contains the lattice...
Murugesan S
muruges@...
Jun 3, 2009 9:36 am
2386
Hi , I wonder if there is a green vanadium oxide . Thanks Ben Messaoud. F [Non-text portions of this message have been removed]...
Hi, During those "heroic times" (before 1990 ?), many scientists were thinking that SDPD was not a serious job. It was thus sometimes difficult to convince the...
Has anybody done this since then :-) lubo "The author should reexamine more critically the problem, supply more convincing arguments for justifying the choice ...
Lubomir Smrcok
uachsmrk@...
Jun 9, 2009 7:12 am
2389
Hi, Probably you have several such samples in your drawers, samples that are not pure (up to 1-3 impurities or more), indexed (but is it so sure ?), and a...
The content of J. Appl. Cryst. 42, part 4 (August 2009 issue) is available. http://journals.iucr.org/j/issues/2009/04/00/issconts.html The paper about the...
Dear Armel, When I encounter unindexed peaks I, normally, ask the chemists to repeat the synthesis at slightly different conditions. If the unindexed peaks...
Continuing in this series of mortal comments about SDPD manuscripts. A title for this one : 3D is obsolete, use 4D. (well, maybe the reviewer is right, damn !)...
Dear Leonid, ... You may change that opinion when approaching retirement and having interesting dirty things in your drawers ;-). Moreover, dirty structures...
Dear Armel As a young guy, in case that some minor diffractions cannot be fitted with expected structure, i prefer publish or openly document them in a local...
Lujun@EKM
jun.lu@...
Jun 16, 2009 8:04 am
2395
Armel, one thing that occurs to me is to use a theoretical method (preferably DFT) to show that your structure make sense, especially if it is controversial....
Dear Jun Lu, ... OK, but this situation is the consequence of an excess in the requirement that crystallography should now lead exclusively to perfect crystal...
HI All, As a high-pressure researcher, I have published some dirty structures and even some filthy ones. The key is to stay away from crystallographic...
Kurt Leinenweber
KURTL@...
Jun 16, 2009 2:43 pm
2398
Are the COD Advisory Board members prepared to a legal action against them ? This reviewers comment received aftre the COD paper submission is a closing speech...
There is no sense of a big debate about this message, if COD is so poor, why such an agressive manner of telling it ! To scare us ? I got the use of never...
Daniel Chateigner
daniel.chateigner@...
Jun 18, 2009 7:53 am
2400
Dear Colleague, We have the pleasure ton inform you that we organize with the collaboration of Humboldt Kolleg '09 an international conference on "Advancements...
People are strange… Why on earth they continue drinking free fresh water while there are 100% reliable, certified, perfectly copyrighted, protected by an...
Dear Colleagues, I am advertising one postdoctoral position dealing with the characterization of the 'structural behavior of porous MOF as a function of...
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