Cofacial porphyrin-ferrocene dyads and a new class of conjugated porphyrin.
A porphyrin-ferrocene dyad has been synthesized in which there is close face-to-face contact between the two aromatic systems, providing a model for heterobimetallic polymers based on the same repeating unit. Attempts to synthesize the 2:1 adduct instead led to a remarkable intramolecular Heck-type cyclization which planarizes the system and extends the conjugation. [structure: see text]
Cammidge
Andrew N
AN
Wolfson Materials and Catalysis Centre, School of Chemical Sciences and Pharmacy, University of East Anglia, Norwich NR4 7TJ, U.K.
Scaife
Peter J
PJ
Berber
Gûlen
G
Hughes
David L
DL