Abstract
Three Cu(II) halido complexes of 3-pyridinepropanol (3-pyprop), 2-pyridineethanol (2-pyet), and 2-pyridinemethanol (2-pymet) have been prepared and investigation of their crystal structures undertaken. All the reported products contain simple pyridine alcohols as neutral ligands. Cu(3-pyprop)2Br2, 1, exhibits square-planar coordination geometry with the axial sites involved in weak bridging contact with the neighboring units to form infinite chains. Reaction of CuBr2 with 2-pyet leads to an ionic complex [Cu(2-pyet)2Br]Br, 2, with distorted square-pyramidal coordination environment: the Cu center in the cation is surrounded by two 2-pyet ligands, coordinated in chelating manner, and a bromide. Reaction of CuCl2 with 2-pymet resulted in the formation of a dinuclear ionic complex Cu2(2-pymet)4Cl2]Cl2·2H2O, 3. The centrosymmetric cation consisted of two Cu ions doubly bridged by chlorides and coordinated by chelating 2-pymet ligands. The positive charge is balanced by free chlorides involved in hydrogen bonds with the lattice water molecules.
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Acknowledgment
The work was supported by the Slovenian Ministry of Higher Education, Science and Technology through research grant P1-175-103.
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Lah, N., Leban, I. Three new copper(II) halides with simple pyridine alcohols. Struct Chem 21, 263–267 (2010). https://doi.org/10.1007/s11224-009-9572-3
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DOI: https://doi.org/10.1007/s11224-009-9572-3