Dear Alakbar Huseynzada many thanks for sharing this interesting technical question with the RG community. In my personal opinion both Hirshfeld surface analysis and crystal structure determination by single-crystal XRD require personal teaching and practical supervision. Both topics are too complex to be learnt online or by reading a few tutorials. If I were you I would contact colleagues at your institution who are experts in this field and ask if they give courses and can perhaps teach you individually. There are experts in Hirshfeld surface analysis and single-crystal X-ray diffraction at the Chemistry Department of Baku State University as can be seen by the following research article:

Crystal structure and Hirshfeld surface analysis of (3a SR ,6 RS ,6a SR ,7 RS ,11b SR ,11c RS )-2,2-dibenzyl-2,3,6a,11c-tetrahydro-1 H ,6 H ,7 H -3a,6:7,11b-diepoxydibenzo[ de , h ]isoquinolin-2-ium trifluoromethanesulfonate

Article Crystal structure and Hirshfeld surface analysis of (3a SR ,...

This paper s freely available as public full text on RG. Thus please check with one of the colleagues at your department if they can help you.

Good luck with your work and best wishes, Frank Edelmann

Alakbar Huseynzada you can watch this video, you may get some useful information regarding HIrshfeld surface analysis.

https://www.youtube.com/watch?v=WOvesUu6IT4

Dear professor Frank T. Edelmann thank you very much for your answer. The researchers that you mentioned are not working at my University. It is a pity but there are no experts in the field of Hirshfeld surface analysis and single-crystal X-ray diffraction at my University.

Thank you one's more.

Dear Lohith T N thank you for the shared link.