the metalloporphyrins tested included a series of cationic metalloporphyrins complexed with co ( iii ) , zn ( ii ) , fe ( iii ) , cu ( ii ) , pd ( ii ) or mn ( iii ) and a series of anionic porphyrins chelated with co ( iii ) , fe ( iii ) , cu ( ii ) , rh ( iii ) , mn ( iii ) or sn ( iv ) .
C0025541
metalloporphyrins
C0032712
porphyrins