作者: Ronald F. Evilia , A. James Diefenderfer
DOI: 10.1016/0022-0728(69)80014-8
关键词: Pyridinium 、 Electrochemistry 、 Inorganic chemistry 、 Chemistry 、 Reduction (complexity) 、 Polarography
摘要: Abstract The electrochemical reduction of the monosubstituted halopyridines has been studied. d.c. polarographic half-wave potential is a linear function pH over range that determined by isomer being reduced. mechanism involves two one-electron steps at low pH. polarographically measured p K -values several pyridinium species are related to their excited-state -values. A different operative in alkaline solution. At high three isomeric iodopyridines elctroactive same potential.