. "Chlorophyll f" . . "chlorophyll ''f''" . "Chlorophyll f" . . . "chlorophyll f" . "''f''" . "Chlorophyll ''f''" . . . . "Chlorophyll_f" . . . "[methyl 14-ethyl-8-formyl-4,13,18-trimethyl-20-oxo-3-{3-oxo-3-[(3,7,11,15-tetramethylhexadec-2-en-1-yl)oxy]propyl}-9-vinylphorbine-21-carboxylatato(2\u2212)-\u03BA4N23,N24,N25,N26]magnesium" . . . . . "f" . . . .