1. Your molecule contains NO anomalous scatterers, i.e. atoms with Z>13.
So you can not refine the Flack parameter. Moreover, you have to average the
Friedel pairs and refine your crystal structure a few cycles more.
You should mention it in Experimental section.
As example:
_publ_section_exptl_refinement
;
...
Due to the absence of any significant
anomalous scatterers in the molecule, the ???? ( - how many ?) Friedel pairs
were merged before the final refinement.
;
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