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Yadav B, Ravikanth M. Porphyrinoid framework embedded with polycyclic aromatic hydrocarbons: new synthetic marvels. Org Biomol Chem 2024; 22:1932-1960. [PMID: 38376865 DOI: 10.1039/d3ob02116e] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/21/2024]
Abstract
The highly conjugated tetrapyrrolic porphyrin macrocycle and its contracted and expanded congeners have been extensively used for a wide range of applications across diverse research domains because of their captivating and intriguing features. Over the years, the porphyrin framework and electronic properties of porphyrinoids have been modified and tuned by replacing one or more pyrrole ring(s) with five- and six-membered heterocycles/carbacycles, and their resulting properties have been explored. In recent times, polycyclic aromatic hydrocarbons (PAHs), such as biphenyl, terphenyl, naphthalene, anthracene, phenanthrene, fluorene, pyrene and dibenzo[g,p]chrysene, have been used to replace one or more pyrrole rings of porphyrinoids, and resulting polycyclic-aromatic-embedded porphyrinoids show unique features that differ from those of other modified porphyrinoids. The polycyclic aromatic hydrocarbons in the porphyrinoid macrocyclic framework induce different π-conjugation pathways in macrocycles, exhibit variable degrees of aromaticity from nonaromatic to aromatic and antiaromatic and provide a unique ligand environment to form stable coordination and organometallic complexes in which metals show uncommon oxidation states and unusual reactivity. This review presents an overview of the synthesis, coordination chemistry, structure and properties of various porphyrinoids with an embedded PAH that have been reported to date.
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Affiliation(s)
- Bharti Yadav
- Department of Chemistry, Indian Institute of Technology Bombay, Mumbai 400076, India.
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Szyszko B. Phenanthrene‐Embedded Carbaporphyrinoids and Related Systems: From Ligands to Cages and Molecular Switches. European J Org Chem 2022. [DOI: 10.1002/ejoc.202200714] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Affiliation(s)
- Bartosz Szyszko
- University of Wroclaw: Uniwersytet Wroclawski Chemistry 14 F. Joliot-Curie 14 50383 Wroclaw POLAND
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Yadav B, Ravikanth M. Synthesis and Studies of Structural Isomers of meso-Fused Dicarbahexaphyrins. Chem Asian J 2022; 17:e202200432. [PMID: 35560980 DOI: 10.1002/asia.202200432] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/25/2022] [Revised: 05/06/2022] [Indexed: 11/09/2022]
Abstract
Two close structurally related isomers of nonaromatic meso -fused dicarbahexaphyrins were synthesized by condensing one equivalent of fluorene based tripyrrane with one equivalent of pentafluorobenzaldehyde in CH 2 Cl 2 under BF 3 .OEt 2 catalyzed conditions. The cis and trans isomers of meso -fused dicarbahexaphyrins were separated by preparative thin-layer chromatography and isolated pure macrocycles as green solids in 6-7% yields. NMR spectra of cis and trans isomers are quite distinct from each other and trans isomer was very symmetric and showed fewer resonances than cis isomer in NMR. The NMR study supported the nonaromatic nature of both cis and trans isomers of meso -fused dicarbahexaphyrins. DFT optimized structures revealed that the cis isomer adopted a singly twisted puckered conformation whereas the trans isomer displayed a saddle like conformation. Both cis and trans isomers almost showed similar nonaromatic absorption features with slight differences in their peak maxima. However, the protonated derivative of cis isomer showed absorption bands in visible-NIR region with bands extended upto 1000 nm whereas the trans isomer showed strong bands in the visible region. Both cis and trans macrocycles were easier to oxidize and reduce and TD-DFT studies corroborated with the experimental findings.
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Affiliation(s)
- Bharti Yadav
- IIT Bombay: Indian Institute of Technology Bombay, Department of Chemistry, Department of chemistry IIT bombay, 400076, Mumbai, INDIA
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Zhou W, Sarma T, Su Y, Lei C, Sessler JL. Kinetic trapping of a cobalt(ii) metallocage using a carbazole-containing expanded carbaporphyrinoid ligand. Chem Sci 2022; 13:692-697. [PMID: 35173933 PMCID: PMC8768885 DOI: 10.1039/d1sc06514a] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/22/2021] [Accepted: 12/19/2021] [Indexed: 11/21/2022] Open
Abstract
The meso-unsubstituted expanded porphyrinoid 3, incorporating two carbazole moieties, acts as an effective ligand for Co(ii) and permits the isolation and X-ray diffraction-based characterization of a 6 : 3 metal-to-ligand metallocage complex that converts spontaneously to the constituent 2 : 1 metal-to-ligand metalloring species in chloroform solution. The discrete metalloring is formed directly when the Co(ii) complex is crystallized from supersaturated solutions, whereas crystallization from more dilute solutions favors the metallocage. Studies with two other test cations, Pd(ii) and Zn(ii), revealed exclusive formation of the monomeric metalloring complexes with no evidence of higher order species being formed. Structural, electrochemical and UV-vis-NIR absorption spectral studies provide support for the conclusion that the Pd(ii) complex is less distorted and more effectively conjugated than its Co(ii) and Zn(ii) congeners, an inference further supported by TD-DFT calculations. The findings reported here underscore how expanded porphyrins can support coordination modes, including bimetallic complexes and self-assembled cage structures, that are not necessarily easy to access using more traditional ligand systems. Carbazole containing expanded carbaporphyrinoid ligand supports the formation of 2 : 1 metal-to-ligand complexes with Pd, Co, and Zn. Solid-state studies also revealed formation of a 6 : 3 metal-to-ligand metallocage in the case of Co complexation.![]()
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Affiliation(s)
- Weinan Zhou
- School of Materials Science and Engineering, Shanghai University, Shanghai 200444, China
- Center for Supramolecular Chemistry and Catalysis and Department of Chemistry, College of Science, Shanghai University, Shanghai 200444, China
| | - Tridib Sarma
- Department of Chemistry, Cotton University, Guwahati 781001, Assam, India
| | - Yonghuan Su
- Center for Supramolecular Chemistry and Catalysis and Department of Chemistry, College of Science, Shanghai University, Shanghai 200444, China
| | - Chuanhu Lei
- Center for Supramolecular Chemistry and Catalysis and Department of Chemistry, College of Science, Shanghai University, Shanghai 200444, China
| | - Jonathan L. Sessler
- Department of Chemistry, The University of Texas at Austin, 105 East 24th Street, Stop A5300, Austin, Texas 78712-1224, USA
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Das M, Adinarayana B, Srinivasan A. Recent Advances in the Design and Syntheses of Porphyrinoids by Embedding Higher Analogues of Arene and Pyridine Units. ACS OMEGA 2021; 6:35204-35212. [PMID: 34984253 PMCID: PMC8717398 DOI: 10.1021/acsomega.1c05444] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/30/2021] [Accepted: 11/26/2021] [Indexed: 06/07/2023]
Abstract
Due to enthralling applications in various fields and augmenting fundamental wisdom, π-conjugated macrocycles in general and porphyrin systems in particular are constantly explored. Subtle modifications of porphyrin structure can amend the rudimentary properties. Pursuing innovative properties provides impetus to underpin arene or pyridine moiety embedded porphyrin derivatives. There have been several reviews related to arene incorporated carbaporphyrinoids; however, recent developments of porphyrin analogues by introducing higher analogues of arenes and pyridine units are not adequately inspected. This mini-review mainly focuses on biphenyl, bipyridine, terphenyl, and mixed arene pyridine embedded porphyrin analogues and their coordination chemistry.
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Affiliation(s)
- Mainak Das
- Department
of Chemistry, Jagiellonian University, Gronostajowa 2, 30-387 Kraków, Poland
| | - B. Adinarayana
- Department
of Chemistry, Imperial College London, 80 Wood Lane, London W12 7TA, United
Kingdom
| | - A. Srinivasan
- School
of Chemical Sciences, National Institute
of Science Education and Research (NISER), HBNI, Bhubaneswar 752050, Odisha, India
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Szyszko B, Rymut P, Matviyishyn M, Białońska A, Latos‐Grażyński L. Kinetic versus Thermodynamic Control Over Multiple Conformations of Di‐2,7‐naphthihexaphyrin(1.1.1.1.1.1). Angew Chem Int Ed Engl 2020. [DOI: 10.1002/ange.202008518] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022]
Affiliation(s)
- Bartosz Szyszko
- Department of Chemistry University of Wrocław 14 F. Joliot-Curie St. 50–383 Wrocław Poland
| | - Paweł Rymut
- Department of Chemistry University of Wrocław 14 F. Joliot-Curie St. 50–383 Wrocław Poland
| | - Maksym Matviyishyn
- Department of Chemistry University of Wrocław 14 F. Joliot-Curie St. 50–383 Wrocław Poland
| | - Agata Białońska
- Department of Chemistry University of Wrocław 14 F. Joliot-Curie St. 50–383 Wrocław Poland
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Szyszko B, Rymut P, Matviyishyn M, Białońska A, Latos-Grażyński L. Kinetic versus Thermodynamic Control Over Multiple Conformations of Di-2,7-naphthihexaphyrin(1.1.1.1.1.1). Angew Chem Int Ed Engl 2020; 59:20137-20146. [PMID: 33462869 DOI: 10.1002/anie.202008518] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/16/2020] [Revised: 07/20/2020] [Indexed: 12/14/2022]
Abstract
Di-2,7-naphthihexaphyrin(1.1.1.1.1.1), a non-aromatic carba-analogue of the hexaphyrin(1.1.1.1.1.1), incorporating two built-in 2,7-naphthylene moieties was synthesized as two separate, conformationally locked stereoisomers. Both conformers followed complex protonation pathways involving structurally different species, which can be targeted under kinetic and thermodynamic control. The neutralization of the ultimate dicationic product, accessible from both stereoisomers of the free base, allowed to realize the complex conformational switching cycle involving six structurally different species.
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Affiliation(s)
- Bartosz Szyszko
- Department of Chemistry, University of Wrocław, 14 F. Joliot-Curie St., 50-383, Wrocław, Poland
| | - Paweł Rymut
- Department of Chemistry, University of Wrocław, 14 F. Joliot-Curie St., 50-383, Wrocław, Poland
| | - Maksym Matviyishyn
- Department of Chemistry, University of Wrocław, 14 F. Joliot-Curie St., 50-383, Wrocław, Poland
| | - Agata Białońska
- Department of Chemistry, University of Wrocław, 14 F. Joliot-Curie St., 50-383, Wrocław, Poland
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Murugavel M, Adinarayana B, Das M, Peruncheralathan S, Palepu NR, Srinivasan A. PtCl 2 mediated peripheral transformation of carbatriphyrin(3.1.1) into a meso-fused β-β' dimer and its monomer analogue. Chem Commun (Camb) 2020; 56:12809-12812. [PMID: 32966387 DOI: 10.1039/d0cc05309k] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/25/2022]
Abstract
An unprecedented formation of a meso-fused β-β' carbaporphyrin dimer and its monomer with a keto group was described. These analogues were synthesized from carbatriphyrin(3.1.1.) by a metal assisted strategy using PtCl2 salt in a single step without any prefunctionalized precursors. Upon dimerization, the monomeric ligand with a dianionic core is transformed into a dimeric structure with unique trianionic cores.
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Affiliation(s)
- M Murugavel
- School of Chemical Sciences, National Institute of Science Education and Research (NISER), HBNI, Bhubaneswar-752050, Odisha, India.
| | - B Adinarayana
- School of Chemical Sciences, National Institute of Science Education and Research (NISER), HBNI, Bhubaneswar-752050, Odisha, India.
| | - Mainak Das
- School of Chemical Sciences, National Institute of Science Education and Research (NISER), HBNI, Bhubaneswar-752050, Odisha, India.
| | - S Peruncheralathan
- School of Chemical Sciences, National Institute of Science Education and Research (NISER), HBNI, Bhubaneswar-752050, Odisha, India.
| | - Narasinga Rao Palepu
- School of Chemical Sciences, National Institute of Science Education and Research (NISER), HBNI, Bhubaneswar-752050, Odisha, India.
| | - A Srinivasan
- School of Chemical Sciences, National Institute of Science Education and Research (NISER), HBNI, Bhubaneswar-752050, Odisha, India.
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