Re: [sdpd] Re: Are restraints as good as observations ?

2013-08-02 Thread Armel Le Bail
All deviations from expected values (1.514 and 1.634) are within 3 e.s.u.s that are around 0.03 A in average. About absurdity, there are different sensibilities... With such a definition above, 1.72(3) instead of 1.634 is just OK for Leonid. Where would he see a limit before applying

Re: Precision of lattice parameters

2013-08-02 Thread Łukasz Kruszewski
Hello Ahmed. It depends on the method you use. For Rietveld, you need quite a lot of parameters, i.e., both sample (structural) parameters and instrumental parameters. Regarding the first group, you have diadochy and defects, that make your sample (or its components) differ from the standards you

Re: [sdpd] Re: Are restraints as good as observations ?

2013-08-02 Thread Leonid Solovyov
I mean, Leonid refuse to see any reliability limit to the powder results. Absurdity does not exist at all for him (with the exception of mine apparently). The difference between us is that I am happy with 1.634(2) but already think that soft restraints are clearly needed when I have 1.72(3).

[no subject]

2013-08-02 Thread Максим Молокеев
All deviations from expected values (1.514 and 1.634) are within 3 e.s.u.s  that are around 0.03 A in average. About absurdity, there are different sensibilities... With such a definition above, 1.72(3) instead of 1.634 is just OK for  Leonid. Where would he see a limit before applying

Re: [sdpd] Re: Are restraints as good as observations ?

2013-08-02 Thread Armel Le Bail
I think that Alan is right in that we should stop this thread since we reach such high matters as absurdity and crime. The end words can be the following : Most journals have place for supplementary materials. May be even Leonid could be happy if three tables were presented, 1- the raw

Re: [sdpd] Re: Are restraints as good as observations ?

2013-08-02 Thread Leonid Solovyov
remember the previous discussion at the  Rietveld list where he claimed that all H can be seen and refined independently, always. Absurd - never said so. From absurdity and crimes we arrived at falsifications? Not sure that your young students have received a complete formation if they have to

Re: [sdpd] Re: Are restraints as good as observations ?

2013-08-02 Thread xtal
At 03:04 02/08/2013 -0700, Leonid Solovyov wrote: remember the previous discussion at the Rietveld list where he claimed that all H can be seen and refined independently, always. Absurd - never said so. From absurdity and crimes we arrived at falsifications? Below are the unfalsified words.

Re: [sdpd] Re: Are restraints as good as observations ?

2013-08-02 Thread Leonid Solovyov
Thanks for the correct citation where the term “always” is definitely absent. A bit Better, Leonid   *** Leonid A. Solovyov Institute of Chemistry and Chemical Technology 660049, K. Marx 42, Krasnoyarsk, Russia

Restraints on posting to the Rietveld list

2013-08-02 Thread Alan Hewat
From absurdity and crimes we arrived at falsifications? Ugly yours, with pestilence, PS- rigid brain is the first step before rigid body OK, I asked people to stop this argument. The essential points have been covered, so I am restraining the two principal antagonists from posting for a 1 week

Re: Help with parts for of an old Philips 1055/81 goniometer ?

2013-08-02 Thread Alan Hewat
Thanks to all who replied about this, and in particular to those who offered parts and suggested that Hiltonbrooks (UK) had such spare parts for old equipment - http://www.xrays.u-net.com. My colleague now thinks his workshop might be able repair the original piece, so is holding off on following