Abstract
The di- and triorganotin(IV) derivatives of anthracenecarboxylic acid,
Ph2MeSnOC(O)C14H9 (2), Me3SnOC(O)C14H9 (3), Me2SnOC(O)C14H9(2)center
dot CH3OH (4) Ph3SnOC(O)C14H9 center dot CH3OH (5), Ph2EtSnOC(O)C14H9
(6), Ph2SnOC(O)(C14H9)(2) (7) and PhMe2SnOC(O)C14H9 (8) were
synthesized by the reaction of Ph2MeSnI, Me3SnCl, Me2SnCl2, Ph3SnCl,
Ph(2)EtSnl, Ph2SnCl2, and PhMe2SnI with 9-anthracenecarboxylic acid,
respectively, with the aid of potassium iso-propoxide. All complexes
were characterized by elemental analysis, mass spectrometry, IR, H-1,
C-13 and Sn-119 NMR spectroscopes. The molecular structures of complexes
2, 3 and 4 were determined by single crystal X-ray analysis. The X-ray
structures reveal that complex 2 and 3 adopt a polymeric trans-C3SnO2
trigonal bipyamidal configuration with the oxygen atoms occupying axial
positions. Complex 4 adopts a monomeric structure with two carboxylates
coordinated to tin in a monodentate form from axial and equatorial
positions, and with the coordination number raised to five as the
methanol occupies the apical position of the trigonal bipyramid. (c)
2007 Elsevier B.V. All rights reserved.
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