I might be missing something obvious, but I am unable to find the option to download the primitive unit cell from the new materials project website. All the options given by the export button give the conventional cell only.

enter image description here

Is the option to download primitive unit cell still available, or has it been removed completely?

  • 1
    $\begingroup$ Somehow they didn't fix this issue. you can still use old website legacy.materialsproject.org $\endgroup$ Commented Nov 11, 2022 at 8:03
  • $\begingroup$ Thanks @Pranavkumar $\endgroup$
    – ansonthms
    Commented Nov 11, 2022 at 16:38
  • 1
    $\begingroup$ For questions related to the Materials Project, I strongly recommend using the official forum. You will have a better chance of getting your questions answered there: matsci.org/c/materials-project/8 $\endgroup$ Commented Nov 13, 2022 at 5:57
  • $\begingroup$ @AndrewRosen I have already thread on matsci, interesting there is no answer yet. matsci.org/t/… $\endgroup$ Commented Nov 15, 2022 at 3:43
  • $\begingroup$ @AndrewRosen the question was answered here within two days. The same question was asked on that forum at around the same time, and the asker received the same answer, but it took 13 days (11 days longer). The person that wrote that answer there, might have even found it here, since it was here first. It doesn't look like the chances of getting an answer are better there. Based on this experience alone, it looks like whoever developed this new version of the website, isn't very active on that forum (or this one). $\endgroup$ Commented May 28, 2023 at 4:10

1 Answer 1


Two people so far have said that the legacy website was the only way that they could accomplish the task described in your question: Pranav Kumar here and Bin Liu here. No comment about this has been made on the "official" Materials Project forum either, in over 6 months (see the thread with the answer by Bin Liu). Based on all of that, it seems safe to assume that the answer to your question:

"Is the option to download primitive unit cell still available, or has it been removed completely?"

is that the option is not available in the new website, and it has indeed been removed completely, but fortunately it is still available in the legacy website. If it becomes available on the new website, hopefully someone updates this answer or writes a better answer! In that case I can even make this answer a Community wiki.


You must log in to answer this question.

Not the answer you're looking for? Browse other questions tagged .