β-to-β Singly Linked Subphthalocyanine Dimers with Effective π-Conjugation.

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In this work, a series of π-conjugated Subphthalocyanine dimers assembled by simple π-bridges were efficiently synthesized through metal-catalyzed reactions. Despite being singly linked, these readily accessible arrays exhibit excellent π-electron communication, significantly perturbing the orbital distribution of conventional SubPcs and inducing notable alterations in their optical properties. The findings presented here demonstrate the potential of SubPcs for constructing curved porphyrin arrays with well-conjugated skeletons and intriguing functionalities.