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metal-organic compounds
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The asymmetric unit of the title coordination polymer, {[Mn(C6Cl2O4)(C10H8N2)]·2C2H5OH}n, consists of one MnII ion, one 2,2′-bipyridine (bpy) ligand, one chloranilate (CA2−) ligand and two ethanol solvent molecules. The MnII ion is octahedrally coordinated by two N atoms of one bpy ligand and four O atoms of two chloranilate ions. The chloranilate ion serves as a bridging ligand between the MnII ions, leading to an infinite zigzag chain along [101]. π–π stacking interactions [centroid–centroid distance = 4.098 (2) Å] is observed between the pyridine rings of adjacent chains. The ethanol molecules act as accepters as well as donors for O—H
O hydrogen bonds, and form a hydrogen-bonded chain along the a axis. The H atoms of the hydroxy groups of the two independent ethanol molecules are each disordered over two sites with equal occupancies.
O hydrogen bonds, and form a hydrogen-bonded chain along the a axis. The H atoms of the hydroxy groups of the two independent ethanol molecules are each disordered over two sites with equal occupancies.metal-organic compoundsOpen access
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The title dinuclear complex molecule, [Cu2(C13H9N4)2(PF6)2], lies about an inversion center. The CuII atom shows a square-pyramidal coordination geometry with the basal plane formed by four N atoms of the two bis-chelating 3,5-bis(pyridin-2-yl)pyrazolate ions and with one F atom of the hexafluorophosphate ion in the apical position. Molecules are stacked in a column along the a axis through C—HF hydrogen bonds. The columns are further linked by other C—HF hydrogen bonds, forming a three-dimensional network.
F hydrogen bonds. The columns are further linked by other C—HF hydrogen bonds, forming a three-dimensional network.metal-organic compoundsOpen access
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The title dinuclear complex, [Fe2Br4(C13H9N4)2], which lies on an inversion center, features two approximately planar bis(pyridin-2-yl)pyrazole (bpypz−) ligands [maximum deviation = 0.082 (3) Å] and four bromide ions. Each FeIII ion is octahedrally coordinated by four N atoms of two bpypz− ligands and two Br ions. π–π stacking interactions [centroid–centroid distances = 3.7004 (17)–4.0123 (18) Å] are observed between pyridyl and pyrazole rings, and between pyridyl and pyridyl rings of adjacent complex molecules.
