Bioinspired Polymer Functionalized with a Diiron Carbonyl Model Complex and Its Assembly onto the Surface of a Gold Electrode via Click Chemistry

A complex pendant with two ethynyl groups, [Fe-2(mu-SCH2CCH)(2)(CO)(6)] (2), as a model of the diiron subunit of [FeFe]-hydrogenase was polymerized and the {Fe-2(CO)(6)} core was successfully incorporated into the polymer matrix. The polymer was characterized by a variety of spectroscopic techniques, TGA, FTIR, SEM, TEM, and NMR. The resultant polymer was immobilized via click chemistry using its terminal C CH bond onto the surface of a gold electrode, which was premodified with azidothiol by self-assembled monolayer (SAM). The assembled electrode showed electrochemical responses. (C) 2010 Wiley Periodicals, Inc. J Polym Sci Part A: Polym Chem 48: 2410-2417,2010