Hello,
as far as I know, cif2cell produces the primitive cell by default if it can find it, apparently in this case it cannot. Anyway, you can always do it by hand, it is a bit boring but in the worst case it will only take a few hours.

cheers

On 7/17/20 4:04 PM, rekha sharma wrote:
Dear Prof. Lorenzo
cif2cell seems to be easy to use.
I have downloaded the Cs2AgAuBr6 from materials project (cif file is attached herewith) but I do not find the primitive cell from it.
I used as
cif2cell Cs2AgAuBr6-conv.cif

I am getting 40 atoms as is in conventional one.

Could you tell me how to convert the attached cif file to a primitive one using cif2cell?

Thank you very much.
Rekha

On Fri, Jul 17, 2020 at 4:31 PM Lorenzo Paulatto <paul...@gmail.com <mailto:paul...@gmail.com>> wrote:

    I normally use cif2cell¹, it can produce conventional or primitive cell
    from a cif file. The I usually convert the Cartesian cell axes to ibrav
    using scan_ibrav.x (PW/tools), or by hand if it is easy

    hth


    [1]Comput. Phys. Commun. 182, 1183 (2011)

    On 7/16/20 4:10 PM, rekha sharma wrote:
     > Dear Expert Users,
     >
     > It is possible that this question has been answered many times
    before
     > but I could not find it on the forum.
     >
     > I have few complex structures and it is not possible to handle on my
     > system in the conventional form.
     >
     > Can you please advise any tool that can help me to convert
     > a conventional cell cif file to a primitive cell file?
     >
     > I have tried with VEST (niggli cell reduction) but it does not
    work for me.
     >
     > Thank you very much.
     > Rekha
     >
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-- Lorenzo Paulatto - Paris
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--




Best wishes

Ms. Rekha
Teaching Assistant,
Department of Physics
RK college, Jaipur, India
Mob.: +11 90-95 790 71 697
Email: rekha1997...@gmail.com <mailto:rekha1997...@gmail.com>

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--
Lorenzo Paulatto - Paris
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