Tetra­kis(tri­ethyl­enediamin-1-ium) dodeca-μ₂-chlorido-hexa­kis­(thio­cyanato-κN)hexa-octa­hedro-niobate

The anion of the cluster complex salt, (H-DABCO)₄[Nb₆Cl₁₂(NCS)₆], comprises octa­hedral Nb₆ cluster units, which are coordinated by twelve μ₂-bridging chlorido ligands and six terminal N-bound thio­cyanato ligands.

(2,2′-Bipyrid­yl)(η⁶-p-cymene)iodidoruthenium(II) hexa­fluorido­phosphate

The title compound crystallizes in the triclinic P (Z = 2) space group as a half-sandwich complex resembling a three-legged piano stool. The crystal packing features C—H⋯F/I inter­actions.

N-Methyl­serotonin hydrogen oxalate

The structure of the natural product N-methyl­serotonin is reported as its hydrogen oxalate salt.

5-[(4-Methyl­phen­yl)sulfon­yl]-1-phenyl­thio­pyrano[4,3-b]indole-3(5H)-thione di­chloro­methane monosolvate

Rhodium-catalyzed [2+2+2] cyclo­addition of carbon di­sulfide to o,N-dialkynyl­tosyl­anilines gives two isomeric indolo­thio­pyran­thio­nes as violet and red isomers. This is the first crystal structure of a red isomer, which crystallizes with one mol­ecule of di­chloro­methane in the asymmetric unit.

5,6,7,8-Tetra­hydro-[1,2,4]triazolo[5,1-b]quinazolin-9(4H)-one

The triazole ring in the title mol­ecule is not quite coplanar with the six-membered ring to which it is fused, the dihedral angle between the two least-squares planes being 2.52 (6)°. In the crystal, a layer structure is formed by N—H⋯N and C—H⋯O hydrogen bonds plus slipped π-stacking inter­actions, with the fused cyclo­hexene rings projecting to either side.

1-Benzyl-3-[(4-meth­oxy­phen­yl)imino]­indolin-2-one

The title Schiff base was obtained from the reaction of N-benzyl­isatin with p-arnisidine. The imino C=N double bond, exists in an E conformation.

Pyridin-4-ylmethanaminium perchlorate mono­hydrate

The title compound crystallizes in the monoclinic space group P2₁/n with two formula units per asymmetric unit (Z′ = 2) and features an intricate tri-periodic hydrogen-bonding network.