Pentamethylene bis[4-(10,15,20-triphenylporphyrin-5-yl)benzoate]dizinc(ii) [reagent for application of the exciton chirality method];pentamethylene bis[4-(10,15,20-triphenylporphin-5-yl)benzoate]dizinc(II);1,5-Bis[4-(10,15,20-triphenylporphyrin-5-yl)benzoyloxy]pentane Dizinc(II);Dizinc;5-[4-(10,15,20-triphenylporphyrin-22,24-diid-5-yl)benzoyl]oxypentyl 4-(10,15,20-triphenylporp