Fused Hybrids of a [22]Smaragdyrin BF2 Complex with a NiII Porphyrin

Abstract

Abstract[22]Smaragdyrin BF2 complex (S)‐NiII porphyrin (P) fused hybrids were synthesized through Suzuki–Miyaura coupling of brominated S with borylated P and subsequent oxidative fusion reaction with FeCl3 as the first example of directly fused porphyrinoids bearing cycloheptatriene linkage. These fused hybrids have been fully characterized, including their X‐ray structural analysis. Owing to the cycloheptatriene linkage, these fused hybrids adopt waving structures. These fused hybrids display red‐shifted and enhanced Q‐like bands and characteristic redox potentials, depending upon the constitution and the linking position.