Yuan-Yuan Lin

1,2-Dimorpholinoethane-1,2-dithione

The title compound, C10H16N2O2S2, was prepared by a reaction of 4-tert-butylbenzene, morpholine and sulfur. In the crystal structure, both morpholine rings display the typical chair conformation. Weak C—H⋯O hydrogen bonding is present in the crystal structure.

2,2′-Diamino-4,4′-bi-1,3-thia­zolium bis­(3-nitro­benzoate)

In the title salt, C6H8N4S2 2+·2C7H4NO4 −, the diprotonated diaminobithiazole dication is located on an inversion center. The carboxylate group of the anion is twisted with respect to the benzene ring, with a dihedral angle of 13.6 (4)°. N—H⋯O hydrogen bonds involving the amino and ammonium groups of the dication and the carboxylate functionality of the anion generate supramolecular chains in the crystal.

Bis(3,5-dimethyl-1H-pyrazole-κN 2)(pyridine-2,6-dicarboxyl­ato-κ3 O 2,N,O 6)copper(II)

In the crystal structure of the title compound, [Cu(C7H3NO4)(C5H8N2)2], the CuII cation assumes a distorted trigonal–bipyramidal coordination geometry formed by a pyridine-2,6-dicarboxylate dianion and two 3,5-dimethyl-1H-pyrazole molecules. N—H⋯O hydrogen bonding is present in the crystal structure.

Bis(3,5-dimethyl-1H-pyrazole-κN2)(pyridine-2,6-dicarboxyl­ato-κ3O2,N,O6)copper(II)

In the crystal structure of the title compound, [Cu(C7H3NO4)(C5H8N2)2], the CuII cation assumes a distorted trigonal–bipyramidal coordination geometry formed by a pyridine-2,6-dicarboxylate dianion and two 3,5-dimethyl-1H-pyrazole molecules. N—H⋯O hydrogen bonding is present in the crystal structure.

Bis(3,5-dimethyl-1H-pyrazole-κN)(pyridine-2,6-dicarboxyl-ato-κO,N,O)copper(II).

In the crystal structure of the title compound, [Cu(C7H3NO4)(C5H8N2)2], the CuII cation assumes a distorted trigonal–bipyramidal coordination geometry formed by a pyridine-2,6-dicarboxylate dianion and two 3,5-dimethyl-1H-pyrazole molecules. N—H⋯O hydrogen bonding is present in the crystal structure.