Structure–activity studies on amides inhibiting photosystem II
Abstract
A series of N-phenylanilides and N-phenylureas have been synthesised and their ‘in vitro’ photosystem II activity measured in a cell-free system. An attempt was made to correlate ‘in vitro’ data with a novel hydrophobicity parameter πamide(related to the substituent on the phenyl ring) and with the torsion angle θ between the planes of the phenyl and amide moieties.