The title compound, C16H12FN3OS, a fluorinated di-thio-carbazate imine derivative, was synthesized by the one-pot, multi-component condensation reaction of hydrazine hydrate, carbon di-sulfide, 4-fluoro-benzyl chloride and isatin. The compound demonstrates near-planarity across much of the mol-ecule in the solid state and a Z configuration for the azomethine C=N bond. The Z form is further stabilized by the presence of an intra-molecular N-H⋯O hydrogen bond. In the extended structure, mol-ecules are linked into dimers by N-H⋯O hydrogen bonds and further connected into chains along either [20] or [100] by weak C-H⋯S and C-H⋯F hydrogen bonds, which further link into corrugated sheets and in combination form the overall three-dimensional network.
The title compound, C10H8BrN3OS2, a brominated di-thio-carbazate imine deriv-ative, was obtained from the condensation reaction of S-methyl-dithio-carbazate (SMDTC) and 5-bromo-isatin. The essentially planar mol-ecule exhibits a Z configuration, with the di-thio-carbazate and 5-bromo-isatin fragments located on the same sides of the C=N azomethine bond, which allows for the formation of an intra-molecular N-H⋯Ob (b = bromo-isatin) hydrogen bond generating an S(6) ring motif. In the crystal, adjacent mol-ecules are linked by pairs of N-H⋯O hydrogen bonds, forming dimers characterized by an R 2 2(8) loop motif. In the extended structure, mol-ecules are linked into a three-dimensional network by C-H⋯S and C-H⋯Br hydrogen bonds, C-Br⋯S halogen bonds and aromatic π-π stacking.
The title compound, C6H8N2O4, a new derivative of isoxazole, has been synthesized and structurally characterized. The crystal structure shows the mol-ecule to be almost planar (r.m.s. deviation for the non-hydrogen atoms = 0.029 Å), this conformation being supported by an intra-molecular N-H⋯O hydrogen bond. In the extended structure, the mol-ecules are linked by N-H⋯O hydrogen bonds into chains propagating along [010].
The title compound, C17H15N3OS2 was obtained from the condensation reaction of S-benzyl-dithio-carbazate and 5-methyl-isatin. In the solid-state, the mol-ecule adopts a Z configuration with the 5-methyl-isatin and di-thio-carbazate groups located on the same side of the C=N bond, involving an intra-molecular N-H⋯O hydrogen bond.
The title racemic oxopyrrolidine compound, C13H17NO5, contains three stereogenic centres and crystallizes with two mol-ecules in the asymmetric unit. The five-membered pyrrolidine rings in both mol-ecules exhibit envelope conformations. The N-ethyl group of one of the mol-ecules is disordered over two sets of sites in a 0.836 (4):0.164 (4) ratio. In the crystal, both mol-ecules form inversion dimers through pairwise O-H⋯O hydrogen bonds, generating R 2 2(10) loops, which are linked into a three-dimensional network by weak C-H⋯O hydrogen bonds.
The asymmetric unit of the title compound, C9H15NO4, consists of a functionalized pyrrolidine ring having an envelope conformation, synthesized as an ethyl ester. The mol-ecule has three chiral centres and crystallized as a racemic mixture. In the crystal, mol-ecules are linked by pairwise O-H⋯O bonds, generating dimers with twofold rotational symmetry.
In the title compound, C17H22N2O5 the pyrrolidine ring is almost planar and subtends a dihedral angle of 85.77 (7)° with the pendant phenyl ring. An intra-molecular N-H⋯O hydrogen bond generates an S(6) loop. In the crystal, the compound forms inversion dimers through O-H⋯O hydrogen bonds from the disordered hydroxyl group to either the hydroxyl or ester carbonyl O atom of the adjacent mol-ecule.