Syntheses and characterizations of di- and tri-organotin carboxylates of 4-oxo-4-phenyl butanoic and 4-(4-biphenyl)-4-oxobutyric acid
摘要:
A family of organotin carboxylates, [(C6H5)(3)Sn(L-1)(2)] (1) and [(C6H11)(2)Sn(L-2)] (2), was synthesized from reaction of (RSnOH)-Sn-3 and R-2'SnO (where R = phenyl, R' = cyclohexyl) with 4-oxo-4-phenyl butanoic ((LH)-H-1) and 4-(4-biphenyl)-4-oxobutyric acid ((LH)-H-2) in suitable mole ratios. They have been characterized by elemental analysis, FT-IR, H-1 NMR spectroscopy, and single-crystal X-ray diffraction analysis. In 1, the geometry of tin is trigonal bipyramidal. Supramolecular architecture of 1 shows a polymeric chain structure with Ph3Sn centers linked by PhCOC2H4CO2 ligands via O -> Sn interactions. Sn center dot center dot center dot Sn non-bonded distances in the repeating 1-D polymeric structure equal 5.835 angstrom. Complex 2 contains an angular sector and adopts a distorted tetrahedral geometry.