Abstract
A series of new organotin (IV) complexes with 3-hydroxy-2-pyridinecarboxylic acid (3-OH-2-picH) of two types: R 2SnCl(3-OH-2-pic) ( I) (R = Me 1, n-Bu 2, Ph 3, PhCH 2 4) and R 2 Sn(3-OH-2-pic) 2 ( II) (R = Me 5, n-Bu 6, Ph 7, PhCH 2 8)have been synthesized by reactions of diorganotin (IV) dichloride with 3-hydroxy-2-pyridinecarboxylic acid in the presence of sodium ethoxide. All complexes are characterized by elemental analyses, IR spectra and NMR spectra analyses. Among them, complexes 1, 5, 6 and 7 are also characterized by X-ray crystallography diffraction analyses. Complex 1 is a 1D polymeric chain with six-coordinate tin atoms and the packing of complex 1 is stabilized by the C–H⋯Cl intermolecular weak interactions, thus a 2D network of 1 is formed. Complex 5 is also a 1D polymeric chain with seven-coordinate tin atoms. Complex 6 is a zigzag polymeric chain linked by Sn⋯O intermolecular weak interactions. Complex 7 is a monomeric complex with distorted octahedral geometry.
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