62 research outputs found
BisÂ(μ-pyridine-2,3-dicarboxylÂato)bisÂ[aquaÂ(3-carbÂoxyÂpyridine-2-carboxylÂato)indium(III)] tetraÂhydrate
In the binuclear centrosymmetric title compound, [In2(C7H3NO4)2(C7H4NO4)2(H2O)2]·4H2O, which contains both pyridine-2,3-dicarboxylÂate and 3-carbÂoxyÂpyridine-2-carboxylÂate ligands, the InIII atom is six-coordinated in a distorted octaÂhedral geometry. One pyridine ligand is N,O-chelated while the other is N,O-chelated and at the same time bridging to the other via the second carboxyl group. In the crystal, an extensive O—H⋯O hydrogen-bonding network, involving the coordinated and lattice water molÂecules and the carboxyl groups of the ligands, together with C—H⋯O and π–π interÂactions [centroid–centroid distance = 3.793 (1) Å], leads to the formation of a three-dimensional structure
Crystal Engineering and Molecular Architecture
The aim of this paper is to provide a link between research projects and education to optimize teaching and learning of related subjects. In a research project, three compounds including an intermolecular proton transfer compound, a hydrated carboxylic acid, and a metallic complex were synthesized, all of them have non-covalent interactions such as O−H∙∙∙O, O−H∙∙∙N and C−H∙∙∙O hydrogen bonds as well as van der Waals forces and π-π stacking resulting to different supramolecular structures. The structures of compounds are characterized by single crystal X-ray diffraction method. The classic concepts and definitions related to the subject are given in the last section
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