A novel dimeric phthalocyanine–C60 nanoconjugate, consisting of a bisphthalocyanine core to which two fullerenes are attached, has been prepared. The synthetic strategy implemented the preparation of a diformyl butadiynyl-bridged bisphthalocynaninatozinc(II) complex by means of palladium-catalyzed cross-coupling reactions and subsequent dipolar cycloaddition reactions. Photophysical experiments confirm that an intramolecular electron transfer, namely, from the photoexcited ZnPc moiety to the electron-accepting C60 unit, governs the overall photoreactivity of the nanoconjugate. Through-space charge-transfer interactions facilitated by the close proximity of the ZnPc and the C60 moieties play a decisive role in determining the lifetimes of the charge-separated state which range from 10−10to 10−9 seconds.
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