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Basumatary B, Tsuruda H, Szczepanik DW, Lee J, Ryu J, Mori S, Yamagata K, Tanaka T, Muranaka A, Uchiyama M, Kim J, Ishida M, Furuta H. Metalla-Carbaporphyrinoids Consisting of an Acyclic N-Confused Tetrapyrrole Analogue Served as Stable Near-Infrared-II Dyes. Angew Chem Int Ed Engl 2024; 63:e202405059. [PMID: 38563771 DOI: 10.1002/anie.202405059] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/13/2024] [Revised: 04/02/2024] [Accepted: 04/02/2024] [Indexed: 04/04/2024]
Abstract
We present herein the synthesis of novel pseudo-metalla-carbaporphyrinoid species (1M: M=Pd and Pt) achieved through the inner coordination of palladium(II) and platinum(II) with an acyclic N-confused tetrapyrrin analogue. Despite their tetrapyrrole frameworks being small, akin to well-known porphyrins, these species exhibit an unusually narrow HOMO-LUMO gap, resulting in an unprecedentedly low-energy absorption in the second near-infrared (NIR-II) region. Density functional theory (DFT) calculations revealed unique dπ-pπ-conjugated electronic structures involving the metal dπ-ligand pπ hybridized molecular orbitals of 1M. Magnetic circular dichroism (MCD) spectroscopy confirmed distinct electronic structures. Remarkably, the complexes feature an open-metal coordination site in the peripheral NN dipyrrin site, forming hetero-metal complexes (1Pd-BF2 and 1Pt-BF2) through boron difluoride complexation. The resulting hetero metalla-carbaporphyrinoid species displayed further redshifted NIR-II absorption, highly efficient photothermal conversion efficiencies (η; 62-65 %), and exceptional photostability. Despite the challenges associated with the theoretical and experimental assessment of dπ-pπ-conjugated metalla-aromaticity in relatively larger (more than 18π electrons) polycyclic ring systems, these organometallic planar tetrapyrrole systems could serve as potential molecular platforms for aromaticity-relevant NIR-II dyes.
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Affiliation(s)
- Biju Basumatary
- Department of Applied Chemistry, Graduate School of Engineering, Kyushu University, Fukuoka, 819-0395, Japan
| | - Hidetoshi Tsuruda
- Department of Applied Chemistry, Graduate School of Engineering, Kyushu University, Fukuoka, 819-0395, Japan
| | - Dariusz W Szczepanik
- Department of Theoretical Chemistry, Jagiellonian University, Faculty of Chemistry, Gronostajowa 2, 30-387, Krakow, Poland
| | - Jiyeon Lee
- School of Integrated Technology, College of Computing, Integrated Science and Engineering Division, Underwood International College, Integrative Biotechnology and Translational Medicine, Graduate School, Yonsei University, Incheon, 21983, Korea
| | - Jaehyeok Ryu
- School of Integrated Technology, College of Computing, Integrated Science and Engineering Division, Underwood International College, Integrative Biotechnology and Translational Medicine, Graduate School, Yonsei University, Incheon, 21983, Korea
| | - Shigeki Mori
- Advanced Research Support Center, Ehime University, Matsuyama, 790-8577, Japan
| | - Kyo Yamagata
- Department of Molecular Engineering, Graduate School of Engineering, Kyoto University, Nishikyo-ku, Kyoto, 615-8195, Japan
| | - Takayuki Tanaka
- Department of Molecular Engineering, Graduate School of Engineering, Kyoto University, Nishikyo-ku, Kyoto, 615-8195, Japan
| | - Atsuya Muranaka
- Molecular Structure Characterization Unit, RIKEN Center for Sustainable Resource Science, 2-1 Hirosawa, Wako, Saitama, 351-0198, Japan
| | - Masanobu Uchiyama
- Graduate School of Pharmaceutical Sciences, The University of Tokyo, Tokyo, 113-0033, Japan
| | - Jiwon Kim
- School of Integrated Technology, College of Computing, Integrated Science and Engineering Division, Underwood International College, Integrative Biotechnology and Translational Medicine, Graduate School, Yonsei University, Incheon, 21983, Korea
| | - Masatoshi Ishida
- Department of Chemistry, Graduate School of Sciences, Tokyo Metropolitan University, Hachioji, 192-0397, Japan
| | - Hiroyuki Furuta
- Department of Applied Chemistry, Graduate School of Engineering, Kyushu University, Fukuoka, 819-0395, Japan
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Xu C, Zhang YP, Zheng TL, Wang ZQ, Zhao YM, Guo PP, Lu C, Yang KZ, Wei PJ, He QG, Gong XQ, Liu JG. Contracted Fe-N 5-C 11 Sites in Single-Atom Catalysts Boosting Catalytic Performance for Oxygen Reduction Reaction. ACS APPLIED MATERIALS & INTERFACES 2023. [PMID: 37379231 DOI: 10.1021/acsami.3c03982] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/30/2023]
Abstract
Promoting the catalyst performance for oxygen reduction reaction (ORR) in energy conversion devices through controlled manipulation of the structure of catalytic active sites has been a major challenge. In this work, we prepared Fe-N-C single-atom catalysts (SACs) with Fe-N5 active sites and found that the catalytic activity of the catalyst with shrinkable Fe-N5-C11 sites for ORR was significantly improved compared with the catalyst bearing normal Fe-N5-C12 sites. The catalyst C@PVI-(TPC)Fe-800, prepared by pyrolyzing an axial-imidazole-coordinated iron corrole precursor, exhibited positive shifted half-wave potential (E1/2 = 0.89 V vs RHE) and higher peak power density (Pmax = 129 mW/cm2) than the iron porphyrin-derived counterpart C@PVI-(TPP)Fe-800 (E1/2 = 0.81 V, Pmax = 110 mW/cm2) in 0.1 M KOH electrolyte and Zn-air batteries, respectively. X-ray absorption spectroscopy (XAS) analysis of C@PVI-(TPC)Fe-800 revealed a contracted Fe-N5-C11 structure with iron in a higher oxidation state than the porphyrin-derived Fe-N5-C12 counterpart. Density functional theory (DFT) calculations demonstrated that C@PVI-(TPC)Fe-800 possesses a higher HOMO energy level than C@PVI-(TPP)Fe-800, which can increase its electron-donating ability and thus help achieve enhanced O2 adsorption as well as O-O bond activation. This work provides a new approach to tune the active site structure of SACs with unique contracted Fe-N5-C11 sites that remarkably promote the catalyst performance, suggesting significant implications for catalyst design in energy conversion devices.
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Affiliation(s)
- Chao Xu
- Key Laboratory for Advanced Materials, School of Chemistry & Molecular Engineering, East China University of Science and Technology, Shanghai 200237, P. R. China
| | - Yan-Ping Zhang
- Key Laboratory for Advanced Materials, Centre for Computational Chemistry and Research Institute of Industrial Catalysis, School of Chemistry and Molecular Engineering, East China University of Science and Technology, Shanghai 200237, P. R. China
| | - Tian-Long Zheng
- College of Chemical and Biological Engineering, Zhejiang University, Hangzhou, Zhejiang 310027, P. R. China
| | - Zhi-Qiang Wang
- Key Laboratory for Advanced Materials, Centre for Computational Chemistry and Research Institute of Industrial Catalysis, School of Chemistry and Molecular Engineering, East China University of Science and Technology, Shanghai 200237, P. R. China
| | - Ye-Min Zhao
- Key Laboratory for Advanced Materials, School of Chemistry & Molecular Engineering, East China University of Science and Technology, Shanghai 200237, P. R. China
| | - Peng-Peng Guo
- Key Laboratory for Advanced Materials, School of Chemistry & Molecular Engineering, East China University of Science and Technology, Shanghai 200237, P. R. China
| | - Chen Lu
- Key Laboratory for Advanced Materials, School of Chemistry & Molecular Engineering, East China University of Science and Technology, Shanghai 200237, P. R. China
| | - Kun-Zu Yang
- Key Laboratory for Advanced Materials, School of Chemistry & Molecular Engineering, East China University of Science and Technology, Shanghai 200237, P. R. China
| | - Ping-Jie Wei
- Key Laboratory for Advanced Materials, School of Chemistry & Molecular Engineering, East China University of Science and Technology, Shanghai 200237, P. R. China
| | - Qing-Gang He
- College of Chemical and Biological Engineering, Zhejiang University, Hangzhou, Zhejiang 310027, P. R. China
| | - Xue-Qing Gong
- Key Laboratory for Advanced Materials, Centre for Computational Chemistry and Research Institute of Industrial Catalysis, School of Chemistry and Molecular Engineering, East China University of Science and Technology, Shanghai 200237, P. R. China
| | - Jin-Gang Liu
- Key Laboratory for Advanced Materials, School of Chemistry & Molecular Engineering, East China University of Science and Technology, Shanghai 200237, P. R. China
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Białek MJ, Hurej K, Furuta H, Latos-Grażyński L. Organometallic chemistry confined within a porphyrin-like framework. Chem Soc Rev 2023; 52:2082-2144. [PMID: 36852929 DOI: 10.1039/d2cs00784c] [Citation(s) in RCA: 7] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/01/2023]
Abstract
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.
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Affiliation(s)
- Michał J Białek
- Department of Chemistry, University of Wrocław, 14 F. Joliot-Curie, 50383 Wrocław, Poland.
| | - Karolina Hurej
- Department of Chemistry, University of Wrocław, 14 F. Joliot-Curie, 50383 Wrocław, Poland.
| | - Hiroyuki Furuta
- Department of Chemistry and Biochemistry, Graduate School of Engineering, Kyushu University, 744 Moto-oka, Nishi-ku, Fukuoka 819-0395, Japan.
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Xu Y, Zhu B, Li Q, Sha F, Baryshnikov G, He L, Feng Y, Tang J, Wei Y, Li C, Wu X, Ågren H, Xie Y. Pyrrolylmethylene Appended Corrorin: Peripheral Coordination and Transformation to Pyridyl Incorporated Hemiporphycene Analogue. Org Lett 2023; 25:1793-1798. [PMID: 36881833 DOI: 10.1021/acs.orglett.3c00595] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/09/2023]
Abstract
A pyrrolylmethylene appended corrorin 1 was synthesized and coordinated with [Rh(CO)2Cl]2 to afford 1-Rh with unique RhI-η2-CC bonding in addition to the coordination of the dipyrrin-like unit and a carbonyl ligand. Further oxidation of 1 afforded 2, exhibiting a hydrocorrorinone core, and it can be further transformed into pyrrolo[3,2-c]pyridine incorporated hemiporphycene analogue 3 upon treatment with HOAc. The side chain modifies the reactivity of corrorin and effectively tunes the NIR absorption of the resulting porphyrinoids.
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Affiliation(s)
- Yue Xu
- Key Laboratory for Advanced Materials, Frontiers Science Center for Materiobiology and Dynamic Chemistry, Institute of Fine Chemicals, School of Chemistry and Molecular Engineering, East China University of Science and Technology, Shanghai 200237, China
| | - Bin Zhu
- Key Laboratory for Advanced Materials, Frontiers Science Center for Materiobiology and Dynamic Chemistry, Institute of Fine Chemicals, School of Chemistry and Molecular Engineering, East China University of Science and Technology, Shanghai 200237, China
| | - Qizhao Li
- Key Laboratory for Advanced Materials, Frontiers Science Center for Materiobiology and Dynamic Chemistry, Institute of Fine Chemicals, School of Chemistry and Molecular Engineering, East China University of Science and Technology, Shanghai 200237, China
| | - Feng Sha
- Key Laboratory for Advanced Materials, Frontiers Science Center for Materiobiology and Dynamic Chemistry, Institute of Fine Chemicals, School of Chemistry and Molecular Engineering, East China University of Science and Technology, Shanghai 200237, China
| | - Glib Baryshnikov
- Department of Science and Technology, Laboratory of Organic Electronics, Linköping University, SE-601 74 Norrköping, Sweden
| | - Lanka He
- Key Laboratory for Advanced Materials, Frontiers Science Center for Materiobiology and Dynamic Chemistry, Institute of Fine Chemicals, School of Chemistry and Molecular Engineering, East China University of Science and Technology, Shanghai 200237, China
| | - Yifan Feng
- Key Laboratory for Advanced Materials, Frontiers Science Center for Materiobiology and Dynamic Chemistry, Institute of Fine Chemicals, School of Chemistry and Molecular Engineering, East China University of Science and Technology, Shanghai 200237, China
| | - Jingxuan Tang
- Key Laboratory for Advanced Materials, Frontiers Science Center for Materiobiology and Dynamic Chemistry, Institute of Fine Chemicals, School of Chemistry and Molecular Engineering, East China University of Science and Technology, Shanghai 200237, China
| | - Yuan Wei
- Key Laboratory for Advanced Materials, Frontiers Science Center for Materiobiology and Dynamic Chemistry, Institute of Fine Chemicals, School of Chemistry and Molecular Engineering, East China University of Science and Technology, Shanghai 200237, China
| | - Chengjie Li
- Key Laboratory for Advanced Materials, Frontiers Science Center for Materiobiology and Dynamic Chemistry, Institute of Fine Chemicals, School of Chemistry and Molecular Engineering, East China University of Science and Technology, Shanghai 200237, China
| | - Xinyan Wu
- Key Laboratory for Advanced Materials, Frontiers Science Center for Materiobiology and Dynamic Chemistry, Institute of Fine Chemicals, School of Chemistry and Molecular Engineering, East China University of Science and Technology, Shanghai 200237, China
| | - Hans Ågren
- Department of Physics and Astronomy, Uppsala University, SE-751 20 Uppsala, Sweden
| | - Yongshu Xie
- Key Laboratory for Advanced Materials, Frontiers Science Center for Materiobiology and Dynamic Chemistry, Institute of Fine Chemicals, School of Chemistry and Molecular Engineering, East China University of Science and Technology, Shanghai 200237, China
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Grover V, Pushpanandan P, Ravikanth M. Piperazine Bridged Thianorrole Dimer. Org Lett 2023; 25:756-760. [PMID: 36722846 DOI: 10.1021/acs.orglett.2c04199] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/02/2023]
Abstract
Oxidative cyclization of open chain thiabilanes yielded the first examples of unique piperazine bridged thianorrole dimers instead of the expected thianorrole monomer. In the thianorrole dimer, the two thianorrole monomeric units are linked via two direct pyrrole C-C bonds by involving the inverted pyrrole and adjacent pyrrole rings of each thianorrole macrocycle and generate a six-membered piperazine ring that bridges the two thianorrole macrocycles. The spectral studies indicated that the thianorrole dimers are nonaromatic in nature.
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Affiliation(s)
- Vratta Grover
- Department of Chemistry, Indian Institute of Technology Bombay, Powai, Mumbai, 400076, India
| | - Poornenth Pushpanandan
- Department of Chemistry, Indian Institute of Technology Bombay, Powai, Mumbai, 400076, India
| | - Mangalampalli Ravikanth
- Department of Chemistry, Indian Institute of Technology Bombay, Powai, Mumbai, 400076, India
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Organometallic Chemistry within the Structured Environment Provided by the Macrocyclic Cores of Carbaporphyrins and Related Systems. Molecules 2023; 28:molecules28031496. [PMID: 36771158 PMCID: PMC9920839 DOI: 10.3390/molecules28031496] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/03/2023] [Revised: 01/27/2023] [Accepted: 01/30/2023] [Indexed: 02/08/2023] Open
Abstract
The unique environment within the core of carbaporphyrinoid systems provides a platform to explore unusual organometallic chemistry. The ability of these structures to form stable organometallic derivatives was first demonstrated for N-confused porphyrins but many other carbaporphyrin-type systems were subsequently shown to exhibit similar or complementary properties. Metalation commonly occurs with catalytically active transition metal cations and the resulting derivatives exhibit widely different physical, chemical and spectroscopic properties and range from strongly aromatic to nonaromatic and antiaromatic species. Metalation may trigger unusual, highly selective, oxidation reactions. Alkyl group migration has been observed within the cavity of metalated carbaporphyrins, and in some cases ring contraction of the carbocyclic subunit takes place. Over the past thirty years, studies in this area have led to multiple synthetic routes to carbaporphyrinoid ligands and remarkable organometallic chemistry has been reported. An overview of this important area is presented.
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Ko MS, Hong JH, Aslam AS, Lee YH, Cho DG. Synthesis of Dioxa-1,7-naphthicorrole and Its Oxidized Porphyrinoid as a Potential Built-In Linker for Biomolecules. J Org Chem 2023; 88:722-726. [PMID: 36538876 DOI: 10.1021/acs.joc.2c02232] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
Abstract
The first aromatic benzicorrole termed naphthicorrole was synthesized with a carbon donor containing more than six members. Its oxidized (enedione-embedded) porphyrinoid was also obtained using different meso-aryl substitutions under sequential oxidation conditions. The resulting enedione motif of the nonaromatic porphyrinoid was regioselective to the C2 position for S or N nucleophiles. Thus, the oxidized porphyrinoid was tested as a built-in linker for biomolecules. The progress of the reaction was visually monitored due to their different conjugation pathways.
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Affiliation(s)
- Min-Sung Ko
- Department of Chemistry and Chemical Engineering, Inha University, Inharo 100, Incheon 22212, Republic of Korea
| | - Jung-Ho Hong
- Department of Chemistry and Chemical Engineering, Inha University, Inharo 100, Incheon 22212, Republic of Korea
| | - Adil S Aslam
- Department of Chemistry and Chemical Engineering, Inha University, Inharo 100, Incheon 22212, Republic of Korea
| | - Yoon Hee Lee
- Department of Chemistry and Chemical Engineering, Inha University, Inharo 100, Incheon 22212, Republic of Korea
| | - Dong-Gyu Cho
- Department of Chemistry and Chemical Engineering, Inha University, Inharo 100, Incheon 22212, Republic of Korea
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Grover V, Pushpanandan P, Ravikanth M. Synthesis, Structure and Studies of Meso-Triaryl 22-Oxabenzonorroles. Chem Asian J 2022; 17:e202200744. [PMID: 35916200 DOI: 10.1002/asia.202200744] [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: 07/15/2022] [Revised: 07/29/2022] [Indexed: 11/07/2022]
Abstract
The first examples of meso-triaryl 22-oxabenzonorroles were synthesized in 18-21% yields by oxidation of appropriate meso-triaryl oxabenzobilane. The key precursors, the meso-triaryl oxabenzobilanes were synthesized readily by treating 16-oxatripyrrane with (1H-indol-3-yl)(p-tolyl)methanol under acid catalyzed conditions. The meso-triaryl 22-oxabenzonorroles were obtained in free base form by following our simple straight-forward synthetic strategy. The X-ray structure obtained for meso-tritolyl 22-oxabenzonorroles revealed that the indole ring was deviated by an angle of 41.27o from the mean plane. The NMR studies supported the presence of diatropic ring current effect as inner NH and CH protons were observed in the upfield region. The absorption spectra of 22-oxabenzonorroles exhibited one strong Soret band and four weak Q-bands. The electrochemical studies revealed that the macrocycles are electron rich and undergo easier oxidations. The DFT and TD-DFT studies were in agreement with the experimental observations and NICS and HOMA values supports the aromatic nature of meso-triaryl oxabenzonorroles.
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Affiliation(s)
- Vratta Grover
- Indian Institute of Technology Bombay, Department of Chemistry, INDIA
| | | | - Mangalampalli Ravikanth
- Indian Institute of Technology Bombay, Department of Chemistry, Powai, 400 076, Mumbai, INDIA
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Abstract
Norroles are isomers of corroles containing a direct pyrrole N-pyrrole C link instead of a pyrrole C-pyrrole C link of corroles. 22-Oxanorroles are core-modified norroles in which one of the pyrroles is replaced with a furan ring. A straightforward route is adopted to synthesize the first examples of aromatic meso-triaryl-22-oxanorroles containing a pyrrole N-pyrrole α-C direct bond in 4-7% yields by condensing 16-oxatripyrrane and (1H-pyrrol-3-yl)(p-tolyl)methanol in CH2Cl2 under mild acid-catalyzed conditions followed by oxidation with DDQ.
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Affiliation(s)
- Poornenth Pushpanandan
- Department of Chemistry, Indian Institute of Technology Bombay, Powai, Mumbai 400076, India
| | - Vratta Grover
- Department of Chemistry, Indian Institute of Technology Bombay, Powai, Mumbai 400076, India
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Toganoh M, Furuta H. Creation from Confusion and Fusion in the Porphyrin World─The Last Three Decades of N-Confused Porphyrinoid Chemistry. Chem Rev 2022; 122:8313-8437. [PMID: 35230807 DOI: 10.1021/acs.chemrev.1c00065] [Citation(s) in RCA: 36] [Impact Index Per Article: 18.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/28/2022]
Abstract
Confusion is a novel concept of isomerism in porphyrin chemistry, delivering a steady stream of new chemistry since the discovery of N-confused porphyrin, a porphyrin mutant, in 1994. These days, the number of confused porphyrinoids is increasing, and confusion and associated fusion are found in various fields such as supramolecular chemistry, materials chemistry, biological chemistry, and catalysts. In this review, the birth and growth of confused porphyrinoids in the last three decades are described.
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Affiliation(s)
- Motoki Toganoh
- Department of Chemistry and Biochemistry, Graduate School of Engineering, Kyushu University 744 Moto-oka, Nishi-ku, Fukuoka 819-0395, Japan
| | - Hiroyuki Furuta
- Department of Chemistry and Biochemistry, Graduate School of Engineering, Kyushu University 744 Moto-oka, Nishi-ku, Fukuoka 819-0395, Japan
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Neo-Porphyrinoids: New Members of the Porphyrinoid Family. Top Curr Chem (Cham) 2021; 379:26. [PMID: 34009495 DOI: 10.1007/s41061-021-00338-6] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/15/2020] [Accepted: 05/07/2021] [Indexed: 10/21/2022]
Abstract
The four pyrrole rings and four meso carbons of tetrapyrrolic porphyrins can be arranged in different ways and the resulting porphyrin isomers exhibit very distinct electronic properties. The extensive research carried out on the porphyrins over the years has revealed that porphyrin can have several possible isomers and some of these have been identified and synthesized. Among the porphyrin isomers synthesized so far, porphycene and N-confused porphyrins have been investigated extensively whereas the other porphyrin isomers such as hemiporphycene, corrphycene and isoporphycene remain underdeveloped because of synthetic difficulties and their inherently unstable nature. Neoporphyrinoids are new members of the porphyrinoid family that were discovered serendipitously in 2011. Neoporphyrinoids are structural analogues of porphyrinoids with a confused pyrrole nitrogen linked to a meso carbon or the adjacent pyrrole carbon. Thus, neoporphyrinoids have an unusual structure in which pyrrole N is a part of a porphyrinoid framework and the lone pair of electrons on nitrogen participate in macrocyclic conjugation. It's been a decade since the discovery and different types of neoporphyrinoids, including regular, contracted and expanded neoporphyrinoids, have been synthesized by rational synthetic methodologies and their spectral, structural, aromatic and coordination properties have been studied. There is huge scope to develop different synthetic routes to produce new types of stable neoporphyrinoids to study their properties and potential applications. This article presents a brief overview of the synthesis, structure and properties of the neoporphyrinoids reported in this decade.
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Lee W, Zhan X, Palma J, Vestfrid J, Gross Z, Churchill DG. Minding our P-block and Q-bands: paving inroads into main group corrole research to help instil broader potential. Chem Commun (Camb) 2021; 57:4605-4641. [PMID: 33881055 DOI: 10.1039/d1cc00105a] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/26/2023]
Abstract
Main group chemistry is often considered less "dynamic" than transition metal (TM) chemistry because of predictable VSEPR-based central atom geometries, relatively slower redox switching and lack of electronic d-d transitions. However, we delineate what has been made possible with main group chemistry to give it its proper due and up-to-date treatment. The huge untapped potential regarding photophysical properties and functioning hereby spurred us to review a range of corrole reports addressing primarily photophysical trends, synthetic aspects, and important guidelines regarding substitution and inorganic principles. We also look at Ag and Au systems and also consider substitutions such as CF3, halogens, additives and also counterions. Throughout, as well as at the end of this review, we suggest various future directions; further future industrial catalytic and health science research is encouraged.
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Affiliation(s)
- Woohyun Lee
- Korea Advanced Institute of Science and Technology (KAIST), Department of Chemistry, 291 Daehak-ro, Yuseong-gu, Daejeon 34141, Republic of Korea.
| | - Xuan Zhan
- Schulich Faculty of Chemistry, Technion-Israel Institute of Technology, Haifa 32000, Israel.
| | - Jaymee Palma
- Korea Advanced Institute of Science and Technology (KAIST), Department of Chemistry, 291 Daehak-ro, Yuseong-gu, Daejeon 34141, Republic of Korea.
| | - Jenya Vestfrid
- Schulich Faculty of Chemistry, Technion-Israel Institute of Technology, Haifa 32000, Israel. and Department of Chemical Engineering & Applied Chemistry, University of Toronto, 200 College Street, Toronto, Ontario M5S3E5, Canada.
| | - Zeev Gross
- Schulich Faculty of Chemistry, Technion-Israel Institute of Technology, Haifa 32000, Israel.
| | - David G Churchill
- Korea Advanced Institute of Science and Technology (KAIST), Department of Chemistry, 291 Daehak-ro, Yuseong-gu, Daejeon 34141, Republic of Korea. and Center for Catalytic Hydrocarbon Functionalizations, Institute for Basic Science (IBS), Daejeon, Republic of Korea and KAIST Institute for Health Science and Technology (KIHST) (Therapeutic Bioengineering Section), Daejeon 34141, Republic of Korea
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