5-Chloro-benzothia-zole-2-spiro-3'-indolin-2'-one.

The title compound, C(14)H(9)ClN(2)OS, crystallizes with two unique mol-ecules, A and B, in the asymmetric unit. The five-membered rings of the benzothia-zole groups in both mol-ecules adopt an envelope conformation [puckering parameters: q(2) = 0.242 (1) Å and ϕ(2) = 217.

N'-[(2Z)-3-Allyl-4-oxo-1,3-thia-zolidin-2-yl-idene]-5-fluoro-3-phenyl-1H-indole-2-carbohydrazide.

In the title compound, C(21)H(17)FN(4)O(2)S, the planar indole fused-ring [maximum deviation 0.009 (1) Å] makes dihedral angles of 54.75 (9) and 14.

Methyl trans-(±)-1-oxo-2-phenethyl-3-(thio-phen-2-yl)-1,2,3,4-tetra-hydro-isoquinoline-4-carboxyl-ate.

In the title compound, C(23)H(21)NO(3)S, the piperidine ring of the tetra-hydro-isoquinolinone unit adopts a screw-boat conformation. The thio-phene ring is disordered in a 0.700 (3):0.

Bis[dichlorido(5,5'-dimethyl-2,2'-bi-pyridine-κN,N')gold(III)] tetra-chlorido-aurate(III) dichloridooaurate(I).

The title compound, [Au(III)Cl(2)(C(12)H(12)N(2))](2)[Au(III)Cl(4)][Au(I)Cl(2)], contains three distinct types of Au atom. In the cation, the Au(III) atom is four-coordinated in a distorted square-planar arrangement by an N,N'-bidentate 5,5'-dimethyl-2,2'-bipyridine ligand and two terminal Cl atoms. In the [AuCl(4)](-) anion, the centrosymmetric Au(III) atom has a square-planar coordination.

Bis(phenanthridinium) hexa-chloridoplatinate(IV) dimethyl sulfoxide disolvate.

The asymmetric unit of the title compound, (C(13)H(10)N)(2)[PtCl(6)]·2C(2)H(6)OS, contains one independent protonated phenanthridinium cation, half of a centrosymmetric [PtCl(6)](2-)anion and one dimethyl sulfoxide solvent mol-ecule. Intra-molecular N-H⋯O and inter-molecular C-H⋯Cl hydrogen-bonding inter-actions seem to be effective in the stabilization of the structure.

2-[1-(4-Ethoxy-phen-yl)-2-oxo-4-styryl-azetidin-3-yl]isoindoline-1,3-dione.

The title compound, C(27)H(22)N(2)O(4), contains a nearly planar four-membered β-lactam ring, which makes dihedral angles of 74.64 (12), 1.70 (11) and 73.

4-(9-Anthr-yl)-1-(4-methoxy-phen-yl)spiro-[azetidin-3,9'-xanthen]-2-one.

In the title mol-ecule, C(36)H(25)NO(3), the β-lactam ring is essentially planar, with a dihedral angle of 3.3 (2)° between the two separate three-atom N/C/C planes. The β-lactam ring makes dihedral angles of 28.

Methyl 2-(2-hydroxy-benzyl-ideneamino)-4,5,6,7-tetra-hydro-1-benzothio-phene-3-carboxyl-ate.

In the title compound, C(17)H(17)NO(3)S, the cyclohexene ring is essentially planar, with a maximum deviation of 0.006 (1) Å. The cyclo-hexene ring adopts a half-chair conformation.

1-Cyclo-hexyl-methyl-3-methyl-2-[(phenyl-imino)(sulfido)meth-yl]benzimidazolium.

In the zwitterionic title compound, C(22)H(25)N(3)S, the benzimid-azole ring system makes a dihedral angle of 55.69 (11)° with the phenyl ring. In the crystal structure, inter- and intra-molecular C-H⋯S inter-actions occur.

1,3-Bis(3-phenyl-prop-yl)benzimidazolium bromide monohydrate.

In the title compound, C(25)H(27)N(2) (+)·Br(-)·H(2)O, the benzimidazole unit is essentially planar, with a maximum deviation of 0.020 (6) Å. The benzimidazole unit makes dihedral angles of 83.