CHED Irvin Levy, Carmen Gauthier, Nicole Snyder  Monday, April 8, 2013 

666 - Synthesis of tin (II) halide-phosphine complexes and characterization via 119Sn, 31P, and 19F NMR spectroscopy

Briana Laubacker, blaubac0@mail.naz.edu, Richard Hartmann. Department of Chemistry and Biochemistry, Nazareth College, Rochester, NY 14618, United States

Recent work in our labs has shown SnX2 (X = F, Cl, Br, and I) to be effective Lewis acid catalysts for the methylation of oleic acid. The results show a clear trend in reaction rates, with SnI2 being the best catalyst and SnF2 the worst. However, we are unable to determine if this result is due to changes in electron density at the metal center, or the steric bulk introduced by the halide ligands. In an effort to systematically modulate the electron density on the tin center we have undertaken the synthesis of several phosphine derivatives of each tin (II) halide using the following phosphines: triphenylphosphine, tris(4-chlorophenyl)phosphine, tris(4-fluorophenyl)phosphine, tris(4-methoxyphenyl)phosphine, tri(p-tolyl)phosphine, 1,2-bis(diphenylphosphino)ethane, and trioctylphosphine. 119Sn, 31P, and 19F NMR studies verify the formation of several novel compounds and this poster will discuss the interpretation of these spectra and the possible identity of the compounds that were formed.


Monday, April 8, 2013 12:00 PM
Undergraduate Research Posters (12:00 PM - 02:30 PM)
Location: Morial Convention Center
Room: Hall D

 

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