Organometallic chemistry confined within a porphyrin-like framework

The world of modified porphyrins changed forever when an N-confused porphyrin (NCP), a porphyrin isomer, was first published in 1994. The replacement of one inner nitrogen with a carbon atom revolutionised the chemistry that one is able to perform within the coordination cavity. One could explore new pathways in the organometallic chemistry of porphyrins by forcing a carbon fragment from the ring or an inner substituent to sit close to an inserted metal ion. Since the NCP discovery, a series of modifications became available to tune the coordination properties of the cavity, introducing a fascinating realm of carbaporphyrins. The review surveys all possible carbatetraphyrins(1.1.1.1) and their spectacular coordination and organometallic chemistry.

Automated summary

The world of modified porphyrins was revolutionized when an N-confused porphyrin (NCP), a porphyrin isomer, was first published in 1994. By replacing one inner nitrogen with a carbon atom, the chemistry that can be performed within the coordination cavity underwent a revolutionary change. The introduction of a carbon fragment from the ring or an inner substituent close to an inserted metal ion allowed exploration of new pathways in the organometallic chemistry of porphyrins. Since the discovery of NCP, various modifications have been available to tune the coordination properties of the cavity, introducing a fascinating realm of carbaporphyrins. This review surveys all possible carbatetraphyrins(1.1.1.1) and their spectacular coordination and organometallic chemistry.