ENHANCED ACCEPTOR CHARACTER IN FULLERENE DERIVATIVES - SYNTHESIS AND ELECTROCHEMICAL PROPERTIES OF FULLEROPYRROLIDINIUM SALTS

Citation
T. Daros et al., ENHANCED ACCEPTOR CHARACTER IN FULLERENE DERIVATIVES - SYNTHESIS AND ELECTROCHEMICAL PROPERTIES OF FULLEROPYRROLIDINIUM SALTS, Journal of the American Chemical Society, 120(45), 1998, pp. 11645-11648
Citations number
36
Categorie Soggetti
Chemistry
ISSN journal
00027863
Volume
120
Issue
45
Year of publication
1998
Pages
11645 - 11648
Database
ISI
SICI code
0002-7863(1998)120:45<11645:EACIFD>2.0.ZU;2-T
Abstract
A family of N-methylpyrrolidinium fullerene iodide salts, possessing o ne (or two) solubilizing chain(s), has been synthesized. As evidenced by CV and steady-state voltammetry experiments, carried out in tetrahy drofuran (THF) solutions, these species show enhanced electron-accepti ng properties with respect to both the parent fulleropyrrolidines and C-60 CV measurements performed at -60 degrees C and scan rates of 50 V /s, made possible by the use of ultramicroelectrodes,: have allowed th e observation, for the first time in fullerene derivatives, of six ful lerene-centered reductions. Bulk electrolysis of these novel compounds , performed at the stage of the first reduction potential, generates a stable zwitterion, with both anion and cation located on the fulleren e derivative.