Carbazole-embedded -benziporphyrinoid: synthesis, structure and a reversible chemodosimeter for mercury(II) ions.

The first carbazole-embedded -benziporphyrinoid is synthesized by a [3+1] acid-catalyzed condensation between appropriate coupling partners. The macrocycle 1 exhibited orange emission and showed a large Stokes shift of 5831 cm. Intriguingly, it shows a selective affinity towards Hg ions over other metal-ions in a reversible manner.

Stable Inner 2H Tautomer of N-Confused-like Porphyrin Embedded with a Carbazole Subunit: Synthesis, Metal Coordination, and Magnetic and Anion Sensing Studies.

A new class of N-confused porphyrin embedded with a carbazole subunit was prepared via [3 + 1] acid-catalyzed condensation of appropriate precursors. underwent smooth metal complexation with Pd(II) and Cu(II) salts to provide the corresponding diamagnetic and paramagnetic , respectively. The single-crystal X-ray structure of is evident with a square-planar Pd-center through C-H activation of inverted pyrrole.