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metal-organic compounds
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The title compound, [Ru(C7F5O2)2(C10H14)(C21H24N2)]·2CH2Cl2, is formed as an orange crystalline powder by the reaction of RuCl2(p-cymene)(IMes) and AgOCOC6F5 in anhydrous tetrahydrofuran (IMes = 1,3-dimesityl-2,3-dihydro-1H-imidazol-2-ylidene). The asymetric unit consists of two independent [Ru(C6F5COO)2(η6-p-cymene)(IMes)] complexes and four dichloromethane solvent molecules. In each complex molecule, the Ru atom presents a pseudo-octahedral environment with the p-cymene ligand occupying three facial coordination sites, while the remaining coordination positions are occupied by the O atoms of the pentafluorobenzoate ligands and by the imidazolylidene ligand.
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In the title compound, {[Cu(C24H15N2O4)2(H2O)2]·4C3H7NO}n, the CuII ion, lying on an inversion center, is six-coordinated by two N atoms from two 4-[6-(4-carboxyphenyl)-4,4′-bipyridin-2-yl]benzoate (L) ligands, two deprotonated carboxylate O atoms from two other symmetry-related L ligands and two water molecules in a slightly distorted octahedral geometry. The CuII atoms are linked by the bridging ligands into a layer parallel to (101). The presence of intralayer O—H
O hydrogen bonds and π–π interactions between the pyridine and benzene rings [centroid–centroid distances = 3.808 (2) and 3.927 (2) Å] stabilizes the layer. Further O—HO hydrogen bonds link the layers and the dimethylformamide solvent molecules.
O hydrogen bonds and π–π interactions between the pyridine and benzene rings [centroid–centroid distances = 3.808 (2) and 3.927 (2) Å] stabilizes the layer. Further O—HO hydrogen bonds link the layers and the dimethylformamide solvent molecules.metal-organic compoundsOpen access
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In the title compound, [Sn(CH3)3(C7H7N2O2S)(H2O)], the SnIV atom has a distorted trigonal–bipyramidal coordination geometry, with one carboxylate O atom of the 2-(4-methylpyrimidine-2-sulfanyl)acetate ligand and the O atom of a water molecule in axial positions, and three methyl groups in equatorial positions. In the crystal, molecules are linked via O—HO and O—HN hydrogen bonds, forming double-stranded chains propagating along [010].
O and O—HN hydrogen bonds, forming double-stranded chains propagating along [010].metal-organic compoundsOpen access
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The title coordination polymer, {[Cd(C8H4O4)(C14H14N4)]·C3H7NO}n, was synthesized by solvothermal reaction of metallic cadmium with the semi-rigid neutral ligand 1,4-bis[(1H-imidazol-1-yl)methyl]benzene (bix) and the V-shaped benzene-1,3-dicarboxylic acid (m-H2bdc). The structure exhibits a pseudo-C-centring which is almost fulfilled by the polymeric metal complex but not by the solvent dimethylformamide (DMF) molecules. The asymmetric unit contains two independent CdII ions, two m-bdc2− ligands, one and two half bix ligands, and two solvent DMF molecules. The CdII ions are both five-coordinated by three O atoms from two different m-bdc2− ligands and two N atoms from two different bix ligands in a distorted square-pyramidal geometry. The m-bdc2− ligands adopt a chelate-monodentate coordination mode, connecting neighboring CdII ions into a zigzag chain parallel to [110]. Adjacent chains are further cross-linked by bix ligands, giving rise to a puckered sheet nearly perpendicular to the chain direction. Thus, each CdII ion is connected to four neighboring CdII ions through two m-bdc2− anions and two bix ligands, giving rise to the final non-interpenetrating uninodal layer with sql (4,4) topology.
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In the title compound, C27H27NO5 (systematic name: 17-cyclopropylmethyl-14-hydroxy-6-oxo-4,5-epoxymorphinan-6-yl benzoate), which is the benzoate ester of the opioid receptor antagonist naltrexone, the dihedral angle between the two phenyl rings is 77.1 (1)°. In the crystal, a weak aromatic C—HOcarboxyl hydrogen bond involving the benzoate groups of adjacent molecules gives rise to a chain extending along the a-axis direction. The known absolute configuration for the molecule was inferred from a previous naltrexone structure.
Ocarboxyl hydrogen bond involving the benzoate groups of adjacent molecules gives rise to a chain extending along the a-axis direction. The known absolute configuration for the molecule was inferred from a previous naltrexone structure.
