In the title compound, C21H17ClN2O4, both pyrrolidine rings adopt twist conformations. The molecular structure is stabilized by weak intramolecular C-H center dot center dot center dot Cl, C-H center dot center dot center dot N and C-H center dot center dot center dot O interactions. The crystal structure is stabilized by intermolecular C-H center dot center dot center dot O interactions.
The five-membered ring in the title compound, C12H13N3O3, is planar and the six-membered ring is slightly non-planar, with one N atom deviating by 0.075 ( 1) angstrom. The molecule is stabilized by C-H center dot center dot center dot O and C-H center dot center dot center dot N intramolecular interactions. The crystal packing is stabilized by C-H center dot center dot center dot O intermolecular interactions generating a centrosymmetric dimer with an R-2(2)( 10) ring.
The two pyrrolidine rings in the title compound, C 25 H 22 N 2 O 6 , adopt envelope conformations. Molecules are stabilized by intramolecular O—H...O hydrogen bonds, and linked into centrosymmetric dimers by intermolecular N—H...O hydrogen bonds.
In the title compound, C33H26N2O2, the pyrrolidine ring adopts an envelope conformation with the N atom deviating by 0.600 (1) angstrom from the plane of the other four atoms. The molecule is stabilized by weak intramolecular C-H...O interactions and the crystal packing is stabilized by N-H...O and C-H...O hydrogen bonds, generating centrosymmetric dimers of R-2(2)(10) and R-2(2)(14) rings.
In the title compound, [Fe(C5H5)(C25H23N2O3)], the pyrrolidine ring adopts a twist conformation. The oxindole ring system is planar. The crystal packing is stabilized by N-H . . . O and C-H . . . pi intermolecular interactions.
In the title compound, C30H23ClN2O3, the pyrrolidine ring adopts a twisted conformation and the five-membered ring of the indanedione group adopts an envelope conformation. Molecules are linked into dimers by N—H⋯O hydrogen bonds, and edge-to-face C—H⋯π interactions exist between dimers.
The pyrrolidine ring in the title compound, C31H25Br2NO3, adopts a twisted conformation and the five-membered ring in the indanedione group adopts a slight envelope conformation. The molecule is stabilized by weak C-H center dot center dot center dot O intramolecular interactions.