Crystal structure of 2-methyl-5-(tetrafluorophosphoranyl)pyrrole

Abstract

Crystals of the title compound are orthorhombic, space group Pbca, with a= 16·352(3), b= 11·875(4), c= 7·781(2)Å, Z= 8. The molecules exhibit a trigonal-bipyramidal geometry, in which the pyrrole ring lies in the axial plane, and are linked in chains by F ⋯ H–N hydrogen bonds. Principal bond lengths (corrected for libration) and bond angles are: P–F(ax) 1·612(8) and 1·633(8), P–F(eq) 1·549(9) and 1·562(7), P–C 1·740(11)Å F(ax)–P–F(ax) 175·9(5), F(eq)–P–F(eq) 108·1(5)°. The structure was solved by direct methods and was refined to R 0·092 for 576 visually estimated unique reflections.