▶
TOverall is set to 0 after last refinement cycle
Klar, Paul Benjamin | Tue, Dec 2, 2025
(updated Wed, Dec 3, 2025)
I can refine TOverall (with fixed all *) and during the refinement the behaviour is as expected. The M40 file is properly updated after each cycle and also the .ref file indicates that TOverall was refined. However, after the last refinement cycle, TOverall is set to 0.0 in the M40 file.
There is an easy workaround: Refine TOverall, get final value from *.ref file, set the Uiso of all atoms to that value.
VersionL: Jana2020 2.1, 29/08/2025
Kind regards,
Paul
Vaclav Petricek Wed, Dec 3, 2025
The reason for introducing the isotropic overall factor was to allow for joint refinement (X-ray + neutron) to correct the harmonic ADPs of one of the datasets. Then, this factor can be used for only one data set. Such a correction is far from ideal, but for most cases, it can help in solving specific problems, such as localizing hydrogen atoms in structures containing heavy atoms. However, some users realized that if they set this factor to some negative value and fix it, the problem with non-positive harmonic ADPs will be “solved”. For this reason, I recalculated this factor for individual atoms when using a single data set. However, I did not expect that this factor would be used in combination with the fixed command. Then it causes problems, as this does not allow recalculation of the fixed Uiso values. BTW, there is a more natural way to keep ADPs identical for a group or all atoms by using the “restrict” commands. It has existed in Jana programs from the very beginning and is described in the Jana98 manual.
I think that the best approach would be to modify the program so that the overall isotropic ADP is not transformed into individual ADPs after refinement, but rather temporarily only when we test them for positivity and during preparation of the CIF output. I hope to make changes soon.
Best regards,
Vaclav
▶
My question disappeared
Michal Dušek | Wed, Oct 22, 2025
If you believe your question has disappeared from this forum, please let us know. It occurred in several cases due to changes made to this web page.
▶
Download link is broken?
Hunter Kantelis | Wed, Oct 1, 2025
(updated Tue, Oct 21, 2025)
Hello Jana team,
When I attempt to download the 2020 version I am met with a 404 not found error.
Kind regards,
Hunter
Naveen Kumar Chogondahalli Muniraju Wed, Oct 1, 2025
Instead of left-clicking on the download link, right-click on the link and 'save link as' to save the 'Jana2020Inst.msi'.
Best
Naveen
Michal Dušek Thu, Oct 2, 2025
Hello Hunter,
I was not able to replicate the issue you reported. When I click, I receive a security warning, and then I can download the file without any problems. We were fixing some issues yesterday, so it is possible you encountered a glitch during that time. Please let me know if the problem persists.
Best wishes,
Michal
Robert Buecker Tue, Oct 21, 2025
Hi, I can confirm that I cannot download 2.1 - I get a cryptic red "The version field is required" error, though I do not see a "version field" anywhere.
Best wishes,
Robert
Michal Dušek Tue, Oct 21, 2025
Hi Robert, thank you for the bug report, it is now corrected.
Best wishes,
Michal
▶
Multipole refinements in JANA2020
Sofie Stampe Leiszner | Wed, Oct 15, 2025
(updated Tue, Oct 21, 2025)
I would like to perform multipole refinements (Hansen-Coppens formalism) in Jana2020. In the Jana2006 cookbook, there is one example of this (Example 10.2 on oxalic acid), but I can't find it in the Jana2020 cookbook. Do you plan to include this example (or a similar one with multipolar refinements) any time soon? I am also interested in how to convert files from xd2024 multipolar refinements into the jana2020 format. Thanks in advance!
Michal Dušek Fri, Oct 17, 2025
HI Sofie,
The example is in an unfinished state. This is a good impulse to finish it. Please have a look at the cookbook later on - I would estimate I can finish it within the next two weeks. I will also address your question regarding XD2024 files. Multipole refinement in Jana2020 is used by several users, so it should be an easy job.
Best wishes,
Michal
Vaclav Petricek Sat, Oct 18, 2025
Just additional information: The import from XD2024 has been tested, and it seems to be working correctly. However, as the way Jana2020 defines the local coordinate system is not entirely identical to XD2024, you should check it carefully. Please report if you have any problems.
Sofie Stampe Leiszner Tue, Oct 21, 2025
Hi Michal and Vaclav,
Thank you for your quick response! Great to hear that the oxalic acid example will be available in the Jana2024 cookbook soon. That will be of a great help!
I cannot make the import from xd2024 work properly, unfortunately. It works before I start performing my xd refinements (on the files that emerges after solving the structure and then performing xdini2024), but not on my refined models. I have tried on some older xd projects as well (from xd2016 though) and experience the same issues. I either get a Fortran run time error (forrtl: severe (64): input conversion error, unit -5, File internal Formatted Read) or an "atom 0.0000 present only in parameter file" error. In the last case, it seems to not recognize the first atom name in the input file, and instead reads its first parameter as an atom name.
I am currently trying to figure out why the conversion works only on the "simple" xd files before modelling etc.
Best,
Sofie