RESUMO
The asymmetric unit of the title compound, C(14)H(12)F(8)N(2), contains one tetra-fluoro-pyrrolidine system and one half-mol-ecule of benzene; the latter, together with a second heterocyclic unit, are completed by symmetry, with a twofold crystallographic axis crossing through both the middle of the bond between the C atoms bearing the heterocyclic rings and the opposite C-C bonds of the whole benzene mol-ecule. The pyrrolidine ring shows an envelope conformation with the apex at the N atom. The dihedral angle between the least-squares plane of this ring and the benzene ring is 36.9â (5)°. There are intra-molecular C-Hâ¯N inter-actions generating S(6) ring motifs. In the crystal structure, the mol-ecules are linked by C-Hâ¯F inter-actions, forming chains parallel to [010].
RESUMO
In the title compound, C(11)H(8)F(4)O(3), the eight-membered dialk-oxy ring adopts a highly puckered conformation. In the crystal, mol-ecules are linked by weak C-Hâ¯O inter-actions.