Investigation of acyclic diene metathesis as a method to synthesize organometallic polymers with molybdenum dimers in the backbone

POLY 226

Ginger V. Shultz, gshultz@uoregon.edu, Department of Chemistry, University of Oregon, Eugene, OR 97403 and David R. Tyler, Materials Science Institute, University of Oregon, 1252 Univ of Oregon, Eugene, OR 97403-1252.
Acyclic Diene Metathesis (ADMET) is a promising polymerization method that has shown great utility in the synthesis of organic polymers but has not yet been used to generate polymers containing transition metals. We will present the first example of a transition metal-containing polymer generated by ADMET. Two complexes were synthesized for investigation as ADMET monomers. Initial results demonstrate the polymerization of the first monomer, Mo(CO)4(Ph2P(CH2)3CH=CH2)2, using Grubbs second generation catalyst. A dimeric molybdenum complex, Cp2Mo2(CO)4(Ph2P(CH2)3CH=CH2)2, was also synthesized and is expected to form a photodegradable polymer because metal-metal bonds can be cleaved with visible light.