Preparation of new materials through the inclusion of polyoxometalate anions within a copolymer matrix

CHED 806

Marcus A Kramer, kramar@bethel.edu, Megan L Nagel, m-nagel@bethel.edu, and Wade A. Neiwert, w-neiwert@bethel.edu. Department of Chemistry, Bethel University, 3900 Bethel Drive, St. Paul, MN 55112
A styrene-based copolymer with randomly distributed styrene–pyridine monomeric derivatizes (para substituted on the styrene –CH2OCH2–C5H4N) was prepared and characterized by FTIR and NMR spectroscopy. Keggin “sandwich”-type polyoxometalate anions of the form [M3n+(PW9O34)2]–(18–n) (Mn+ = various first row transition metal cations) (see figure) were covalently coordinated within the polymer matrix. The N-donor of the pyridine monomer derivative within the copolymer coordinates to the “sandwiched” metals of the polyoxometalate cluster. Inclusion of the inorganic clusters within the copolymer could lead to functional new materials as heterogeneous catalysts.