Organometallic chemistry confined within a porphyrin-like framework

Abstract

Studies on carbaporphyrins and other macrocycles preserving a fundamental porphyrin framework that confines a metal centre in the proximity of a carbon fragment enforcing a plethora of interactions and reactivities are reviewed.

Advances and prospects of porphyrin derivatives in the energy field

“…In addition, the carbaporphyrinoid systems formed by replacing the nitrogen atom in the porphyrin ring with one or more carbon atoms can still exhibit aromatic properties, which has great application prospects in materials science and catalysis. [172][173][174] Therefore, these carbaporphyrins and confused porphyrinoids such as N-confused porphyrins (Fig. 23c) can be modied to regulate their conjugate structure and charge distribution, to enhance their applicability in the energy eld.…”

Organic polymer facilitated CO2 photoreduction: a minireview

“…On the other hand, porphyrins, having a big π-conjugated framework and distinguished solar absorption ability, have been diffusely employed as skeleton molecules to synthesize polymeric photocatalysts. 119,120 A combination of azo and porphyrin can create highly efficient photocatalytic materials (Azo-Por-X-POP) for CO 2 photoreduction 121 (Fig. 16).…”

Linear Extension of Carbaporphyrin Chromophores: Synthesis, Protonation, and Metalation of Anthro[2,3-b]carbaporphyrins: Evidence for 30π-Electron Aromatic Circuits in a Palladium(II) Complex

“…True carbaporphyrins, which possess cyclopentadiene units or related annulated derivatives such as indene in place of the usual pyrrolic moieties within the porphyrin framework, have fully aromatic properties and give electronic absorption spectra that closely resemble regular porphyrins. Carbaporphyrins have unique reactivity and readily form organometallic derivatives with late transition metal cations. , Much of the work in this area has been conducted on benzo-fused carbaporphyrins 1 (Scheme ) due in part to ease of synthesis . In principle, ring fusion extends conjugation within these porphyrinoid systems, but in practice, 1 still favors an 18π electron delocalization pathway.…”