Abstract
Metallophthalocyanine dimers linked by butadiynyl and ethynyl bridges 3a - c and 5 a -c , respectively, have been synthesized by metal-mediated coupling methodologies. The key to the synthesis of these chromophores was the ready availability of appropriately functionalized unsymmetrical phthalocyanines 2a - c that bear a terminal ethynyl group. Following the same methodology, push - pull homo- and heterodimetallic ethynyl-bridged bisphthalocyaninato complexes 10 a - c, that contain electron-donor and electron-acceptor substituents in each of the two phthalocyanine subunits, have been also prepared.
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