Cyclic voltammetry fullerene adducts

Electroactive 3-(N-phenylpyrazolyl)fullereno[l,2-r/]isoxazolines have been synthesized by using 1,3-dipolar cycloaddition of pyrazole nitrile oxides, generated in situ, to Cgo at elevated temperature or microwave irradiation. The cyclic voltammetry measurements show a strong donor pyrazole ring, and a better acceptor ability of the fullerene moiety than the parent C60 (538). Treating fullerene Cgo with mesitonitrile oxide in toluene gives fullerene-nitrile oxide adduct, which is supposed to be useful for electrical and optical components (539). 

Cyclic silylphosphanes, see Silylphosphanes, phosphorus-rich, cyclic Cyclic sulfur-nitrogen compounds, see Sulfur-nitrogen compounds, cyclic Cyclic trithiolate ligand, 38 8-9 Cyclic voltammetry A. chroococcum Fd 1, 38 130-131 fullerene adducts, 44 19 nickel(ll) macrocyclic complexes, 44 112 Rieske proteins, 47 138, 139 Cyclidenes, as cobalt complex ligands, 44 282-284... 

The electrochemical properties of all of these bis-adducts have been studied in reasonable detail, using either cyclic voltammetry (CV) or steady-state voltammetry (SSV) at a rotating disk electrode [10]. While many interesting observations have been made about their electrochemical behavior, the most relevant to the present work concerns the cis-2 isomer, 3 [11]. The bis(methano)fullerenes with a cis-2 addition pattern exhibit a chemically irreversible second one-electron reduction, as determined by using CV and SSV on a rotating disk electrode. Of all the isomers studied, the cis-2 is the only one that exhibits such an irreversible second reduction step on the voltammetric time scales. This observation led to the initiation of a project that eventually culminated in the observations that are presented in this chapter. Most of the work reported here was... 

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