4 -vinyl-2,2 :6 ,2"-terpyridine

B. D. Curtis, C. J. Dubois, D. L. Electrochemical Reduction of CO2 Catalyzed by a Dinuclear Palladium Cooperativity OrganometalUcs 1995, 14, 4937. (k) Ogata, T. Yanagida, S. Brunschwig, B. S. Fujita, E. Mechanistic and Kinetic-Studies of Cobalt Macrocycles in a Photochemical CO2 Reduction System - Evidence of C0-CO2 Adducts as Intermediates /. Am. Chem. Soc. 1995,117, 6708. (1) Arana, C. Keshavarz, M. Potts, K. T. Abruna, H. D. Electrocatalytic Reduction of CO2 and 0-2 with Electropolymerized Films of Vinyl-Terpyridine Complexes of Fe, Ni and Co Inorg. Chim. Acta 1994, 225, 285. 

Arana, C., M. Keshavarz, K.T. Potts, and H.D. Abruna (1994). Electrocatalytic reduction of CO2 and O2 with electropolymerized films of vinyl-terpyridine complexes of Fe, Ni and Co. Inorg. Chim. Acta 225, 285-295. 

The [Co(terpy)2]+ ion (terpy = 2,2 6, 2"-terpyridine) has been found to catalyze the reduction of C02 when the divalent precursor is immobilized on electrode surfaces. The vinyl-substituted terpy analog was electropolymerized to give a film that reduced the overpotential for C02 reduction in DMF and MeCN by more than 1V.104 The activity of this surface-confined species was superior to that of the complexes in solution.105 Similarly, in water, the [Co(terpy)2]2+ ion immobilized and reduced in situ within a Nafion film also catalyzes the reduction of C02106 and H+ ions.107... 

Meier MAR, Schubert US. Terpyridine-modified poly(vinyl chloride) possibilities for supramolecular grafting and crosslinking. J Polym Sci Part A Polym Chem 2003 41 2964-2973. 

Controlled/ Living radical polymerization (CRP) of vinyl acetate (VAc) via nitroxide-mediated polymerization (NMP), organocobalt-mediated polymerization, iodine degenerative transfer polymerization (DT), reversible radical addition-fragmentation chain transfer polymerization (RAFT), and atom transfer radical polymerization (ATRP) is summarized and compared with the ATRP of VAc catalyzed by copper halide/2,2 6 ,2 -terpyridine. The new copper catalyst provides the first example of ATRP of VAc with clear mechanism and the facile synthesis of poly(vinyl acetate) and its block copolymers. 

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