Hi

If lattice parameters- a, b, c are interchanged, do we call it another crystal str. or polymorph like in my study data reported abt. a crystal is a= 8.3, b=9.3, c=26.6, alpha=90, beta=93, gamma=90, space group= P21/c and data which i am getting after indexing powder pattern of recrystallized sample of drug from another solvent using TREOR90 program under Reflex module of MS is as follows-

a=26.59088400, b=9.20696200, c=8.30031700 , alpha=beta=gamma=90, space group is orthorhombic.

Regards

janhvi