Isosmaragdyrin with an N₃C₂ core: stabilization of Rh(i) and organo-Pt(ii) complexes

Abstract

An isosmaragdyrin analogue with an N3C2 core was synthesized and stabilized by Rh(i) and organo-Pt(ii) complexes.

Kinetic versus Thermodynamic Control Over Multiple Conformations of Di‐2,7‐naphthihexaphyrin(1.1.1.1.1.1)

“…[12,13] Themost recent examples of the compounds fulfilling the structural criteria of expanded carbaporphyrinoids,i nclude biphenylene-incorporated hexaphyrin [14] and octaphyrins,w hich demonstrate interesting conformational variety, [14,15] or the isosmaragdyrin incorporating 2,6-di-mphenylpirydine,p rone to bind transition metals with two different coordination modes. [16] As ignificant number of expanded carbaporphyrinoids were created with the use of phenanthrene-based building blocks, [17][18][19][20] for example,3 2heterophenanthrisapphyrins, [21] helicenophyrins, [22] and diphenanthrioctaphyrin. [23] Many of the expanded carbaporphyrinoids share structural features of an archetypical hexaphyrin [24,25] framework.…”

Recent Advances in the Design and Syntheses of Porphyrinoids by Embedding Higher Analogues of Arene and Pyridine Units

“…Architecturally, the macrocycle is blended with arene and pyridine units and exhibits unprecedented properties as a rendezvous of both of the categories. 26 The core of the macrocycle is efficiently utilized to stabilize both Rh I ( 54 ) and Pt II ( 55 ) ions with distinctive bonding modes ( Figure 12 ). The Rh I ion stabilizes through NN chelation and Pt II ion through (N ∧ C)N coordination to form an organometallic complex.…”

Synthesis of Pyridine‐Containing Crowned Fused Expanded Porphyrins

“…A perusal of literature revealed that the reports on pyridine containing porphyrinoids are still few in number. [27][28][29][30][31][32][33] Herein, we attempted to synthesize pyridine containing crowned expanded porphyrins 3 a-c but we isolated pyridine containing crowned fused expanded porphyrins 4-6 because of intramolecular fusion that occurred between two pyrrole Ns and two adjacent inverted thiophene Cs. Thus, we report the synthesis of fused expanded porphyrins 4-6 containing both pyridine and crown ether moiety as a part of macrocyclic framework and their structure, spectral, electrochemical and metal sensing properties studied by various spectral, electrochemical and computational techniques.…”