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metal-organic compounds
In the crystal structure of the title adduct, C8H12N2O2·[Zn(NCS)2(H2O)2], the organic and inorganic molecules are connected by O—H
O hydrogen bonds, with OO distances ranging from 2.640 (2) to 2.677 (3) Å. There are two independent 2,3,5,6-tetramethylpyrazine 1,4-dioxide molecules, both of which lie on crystallographic inversion centers; the asymmetric unit contains two organic half-molecules and one inorganic molecule.
O hydrogen bonds, with OO distances ranging from 2.640 (2) to 2.677 (3) Å. There are two independent 2,3,5,6-tetramethylpyrazine 1,4-dioxide molecules, both of which lie on crystallographic inversion centers; the asymmetric unit contains two organic half-molecules and one inorganic molecule.metal-organic compounds
The title mononuclear complex, [Zn(I)2(C6H7NO)2], lies on a special position of site symmetry 2. The Zn atom is coordinated by two I and two O atoms in a tetrahedral geometry. There is a π–π stacking interaction of the 4-methylpyridine N-oxide units.
metal-organic compounds
The anion of the title compound, (C7H10N)4[SiMo12O40], has a disordered centrosymmetric `pseudo-Keggin' structure and neighboring anions are linked into a layered structure via weak C—HO hydrogen bonding involving the DMP cations.
O hydrogen bonding involving the DMP cations.metal-organic compounds
In red crystal of the title compound, [Mn(NCS)2(C6H8N2O2)2(H2O)2]·2H2O, the MnII atom lies on an inversion centre and assumes a distorted octahedral coordination geometry. Hydrogen bonds consolidate the crystal structure.
metal-organic compounds
In the title mononuclear complex, [Cu(ClO4)2(C5H4N2O3)4], the six-coordinated CuII ion lies on an inversion centre and presents a slightly distorted octahedral geometry. A π–π stacking interaction is observed between symmetry-related pyridine rings.
