✦ LIBER ✦

Synthesis, spectroscopic characterization, and biological activity studies of organotin(IV) derivatives of (E)-3-(3-fluorophenyl)-2-phenyl-2-propenoic acid. Crystal and molecular structure of Et2Sn[OCOC(C6H5)CH(3-FC6H4)]

✍ Scribed by Sadiq-ur-Rehman; Saqib Ali; M. Mazhar; Amin Badshah; Masood Parvez

Publisher: John Wiley and Sons
Year: 2006
Tongue: English
Weight: 192 KB
Volume: 17
Category: Article
ISSN: 1042-7163
DOI: 10.1002/hc.20243

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✦ Synopsis

The complexes Me 2 SnL 2 (I), Me 3 SnL (II), Et 2 SnL 2 (III), n-Bu 2 SnL 2 (IV), n-Bu 3 SnL (V), n-Oct 2 SnL 2 (VI), Bz 2 SnL 2 (VII), and Ph 3 SnL (VIII), where "L" is (E)-3-(3-fluorophenyl)-2-phenyl-2-propenoate, have been prepared and structurally characterized by means of elemental analysis, infrared, mass, and multinuclear ( 1 H, 13 C, 119 Sn) NMR spectral techniques. The spectroscopic results showed that the geometry around the Sn atom in triorganotin(IV) derivatives is four-coordinated in noncoordinating solvent and behaves as five-coordinated linear polymers with bridging carboxylate groups or five-coordinated monomers, both acquiring trans-R 3 SnO 2 geometry for Sn in the solid state. While all the diorganotin(IV) derivatives may acquire trigonal bipyramidal structures in solution due to collapse of the Sn←O CO

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