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Structures of glycosylated glycerol-Zn-phthalocyanine (A) with an intervening tetraethylene glycol spacer, and glycosylated thiol-hexane-Ni-phthalocyanine329 (B) with an intervening tetraethylene glycol spacer; the core Pc was made by a mixed condensation reaction. Ni(II)Pc generally have unfavorable photophysical properties for PDT because of a low-lying d,d state.330
