Hi @Tappan,
Welcome!
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Yes, it should definitely be possible to download the CIF file for any modified structure. Does the CIF file download work normally for you? Any additional information you can provide (web browser version, if you’re using ad blockers, etc.) would also be useful.
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This is sufficient. We will relax the atomic geometry and lattice parameters as necessary for any structure you submit, as long as the guessed structure is approximately correct (so correct space group, atomic species, etc. is ok). Even a bad guess for lattice parameter should not present a problem.
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At the moment, typically about a month. We’d like to accelerate this. We currently update the database in batches, so the calculation can happen quite quickly but it won’t appear on the website until the next database release.
Hope this helps!
Matt