Hi,

Kindly go thro' the attachment. I am doing str soln. of a polymorph (R-20, prepared in dioxan and water) using Reflex module of MS. But while performing pd. indexing (X-cell) on .udf generated with PXRD, then in .std file as in other solns., two sheets are obtained i.e. "All" and "Best". Under "Best" sheet , in other cases I am getting some best solns. and under "All" all the solns possible are mentioned. But in case of R-20, the word "No solutions" is coming under "Best" sheet but "All" sheet contains all the possible solns. But here one thing I have seen that lattice parameters are interchanged  and same and most of the solns. are with monoclinic space group. Would it be considered as a new polymorph or it is same as in crystal str of drug reported in CCDC as the solns are with same space group i.e. monoclinic but with interchanged lattice parameters a, b, c and angle beta is also same as in CCDC crystal str. reported.

regards

janhvi