organic compounds
The title triazole compound, C15H8Cl4N4S·C3H7NO, has been obtained as an unexpected product when attempting to prepare Schiff bases of thiocarbohydrazide (TCH). The triazole ring is planar within 0.004 (8) Å because of conjugation. The dihedral angles between the 1,2,4-triazole ring and the two benzene rings are 24.9 (2) and 70.0 (2)°. The interplanar angle between the two benzene rings is 83.4 (2)°. The packing of the molecules is stabilized both by van der Waals interactions and by N—HO intermolecular hydrogen bonds between the triazole N atom and the carbonyl O atom of the dimethylformamide solvent molecule.
metal-organic compounds
The Cd atom in the title complex, [Cd(NO3)2(C15H13N5)]·H2O or [Cd(NO3)2(tpdaH2)]·H2O (tpdaH2 is tripyridyldiamine), has a pentagonal-bipyramidal coordination formed by the tridentate tpdaH2 ligand and two chelate nitrate groups. The tpdaH2 ligand is mer-coordinated, with the N atom of the central pyridine ring in the equatorial position [Cd-N = 2.3148 (17) Å] and the N atoms of the peripheral pyridine rings in the axial positions [Cd-N = 2.2345 (19) and 2.2351 (19) Å, and N-Cd-N = 169.39 (6)°]. The remaining four equatorial positions are occupied by the four O atoms of two nitrate groups, one of which has almost equal Cd-O bond lengths [2.431 (2) and 2.4644 (19) Å], whereas the other shows a significant difference between the Cd-O bond lengths [2.441 (2) and 2.603 (2) Å]. The H atoms of both NH groups of the tpdaH2 ligand are involved in hydrogen bonds with water O atoms as acceptors, whereas both water H atoms form hydrogen bonds with the O atoms of one of the nitrate groups. The hydrogen bonds link the molecules of the title complex and solvent molecules into an infinite three-dimensional network.
metal-organic compounds
The title compound, [Sn(C6H5)(C8H7O3)2(C4H11Si)], was prepared by the reaction of [(CH3)3SiCH2]SnPhBr2 with CH3OC6H5COOH and spasmolytol in refluxing toluene, and characterized by IR, 1H NMR and elemental analyses. The geometry at the six-coordinate SnIV atom is distorted octahedral with the equatorial plane made up of four O atoms of two carboxylate groups and the axial positions occupied by a phenyl substituent and a trimethylsilylmethyl group.
metal-organic compounds
Bis{μ-N-[bis(hydroxymethyl)(oxidomethyl)methyl]glycinato}bis[dimethyltin(IV)] dioxane hemisolvate
The title complex, [Sn2(CH3)4(C6H11NO5)2]·0.5C4H8O2, comprises the centrosymmetric cyclic dimeric SnIV complex and an uncoordinated, partially occupied, centrosymmetric dioxane molecule. Each SnIV atom has a distorted octahedral six-coordinate configuration formed by the tridentate tricine ligand, one bridging O atom and two methyl groups. Within the cyclic dimer, the SnSn separation is 3.6574 (4) Å. All H atoms of the NH and OH groups are involved in intermolecular hydrogen bonds with the O atoms as acceptors. There are also important weak intermolecular C—HO hydrogen bonds, which link the molecules of the dimer and dioxane into an infinite three-dimensional network.