1
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Lee S, Wang Y, Dutta R, Lee CH, Sessler JL, Kim D. Xanthene-Separated 24 π-Electron Antiaromatic Rosarin Dimer. Chemistry 2023; 29:e202301501. [PMID: 37205632 DOI: 10.1002/chem.202301501] [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: 05/12/2023] [Revised: 05/18/2023] [Accepted: 05/19/2023] [Indexed: 05/21/2023]
Abstract
Antiaromatic molecules have recently received attention because of their intrinsic properties, such as high reactivity and their narrow HOMO-LUMO gaps. Stacking of antiaromatic molecules has been predicted to induce three-dimensional aromaticity via frontier orbital interactions. Here, we report a covalently linked π-π stacked rosarin dimer that has been examined experimentally by steady-state absorption and transient absorption measurements and theoretically by quantum chemical calculations, including time-dependent density functional theory, anisotropy of induced current density, and nucleus-independent chemical shift calculations. Relative to the corresponding monomer, the dimer exhibits diminished antiaromaticity upon lowering the temperature to 77 K, a finding ascribed to intramolecular interactions between the macrocyclic rosarin subunits.
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Affiliation(s)
- Seokwon Lee
- Department of Chemistry, Spectroscopy Laboratory for Functional π-Electronic Systems, Yonsei University, Seoul, 03722, Korea
| | - Yuying Wang
- Department of Chemistry, The University of Texas at Austin, Austin, Texas, 78712-1224, USA
| | - Ranjan Dutta
- School of Applied Science and Humanities, Haldia Institute of Technology, Haldia, West Bengal, 721657, India
| | - Chang-Hee Lee
- Department of Chemistry, Kangwon National University, Chun Cheon, 200-701, Korea
| | - Jonathan L Sessler
- Department of Chemistry, The University of Texas at Austin, Austin, Texas, 78712-1224, USA
| | - Dongho Kim
- Department of Chemistry, Spectroscopy Laboratory for Functional π-Electronic Systems, Yonsei University, Seoul, 03722, Korea
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2
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Kim J, Oh J, Park S, Yoneda T, Osuka A, Lim M, Kim D. Modulations of a Metal-Ligand Interaction and Photophysical Behaviors by Hückel-Möbius Aromatic Switching. J Am Chem Soc 2021; 144:582-589. [PMID: 34967619 DOI: 10.1021/jacs.1c11705] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
In organometallic complexes containing π-conjugated macrocyclic chelate ligands, conformational change significantly affects metal-ligand electronic interactions, hence tuning properties of the complexes. In this regard, we investigated the metal-ligand interactions in hexaphyrin mono-Pd(II) complexes Pd[28]M and Pd[26]H, which exhibit a redox-induced switching of Hückel-Möbius aromaticity and subsequent molecular conformation, and their effect on the electronic structure and photophysical behaviors. In Möbius aromatic Pd[28]M, the weak metal-ligand interaction leads to the π electronic structure of the hexaphyrin ligand remaining almost intact, which undergoes efficient intersystem crossing (ISC) assisted by the heavy-atom effect of the Pd metal. In Hückel aromatic Pd[26]H, the significant metal-ligand interaction results in ligand-to-metal charge-transfer (LMCT) in the excited-state dynamics. These contrasting metal-ligand electronic interactions have been revealed by time-resolved electronic and vibrational spectroscopies and time-dependent DFT calculations. This work indicates that the conspicuous modulation of metal-ligand interaction by Hückel-Möbius aromaticity switching is an appealing approach to manipulate molecular properties of metal complexes, further enabling the fine-tuning of metal-ligand interactions and the novel design of functional organometallic materials.
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Affiliation(s)
- Jinseok Kim
- Spectroscopy Laboratory for Functional π-Electronic Systems and Department of Chemistry, Yonsei University, Seoul 03722, Korea
| | - Juwon Oh
- Spectroscopy Laboratory for Functional π-Electronic Systems and Department of Chemistry, Yonsei University, Seoul 03722, Korea.,Department of Chemistry, Soonchunhyang University, Asan-si, Chungnam 31538, Korea
| | - Seongchul Park
- Department of Chemistry and Chemistry Institute for Functional Materials, Pusan National University, Busan 46241, Korea
| | - Tomoki Yoneda
- Department of Chemistry, Graduate School of Science, Kyoto University, Sakyo-ku, Kyoto 606-8502, Japan
| | - Atsuhiro Osuka
- Department of Chemistry, Graduate School of Science, Kyoto University, Sakyo-ku, Kyoto 606-8502, Japan
| | - Manho Lim
- Department of Chemistry and Chemistry Institute for Functional Materials, Pusan National University, Busan 46241, Korea
| | - Dongho Kim
- Spectroscopy Laboratory for Functional π-Electronic Systems and Department of Chemistry, Yonsei University, Seoul 03722, Korea
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3
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Kim J, Oh J, Osuka A, Kim D. Porphyrinoids, a unique platform for exploring excited-state aromaticity. Chem Soc Rev 2021; 51:268-292. [PMID: 34879124 DOI: 10.1039/d1cs00742d] [Citation(s) in RCA: 18] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/13/2023]
Abstract
Recently, Baird (anti)aromaticity has been referred to as a description of excited-state (anti)aromaticity. With the term of Baird's rule, recent studies have intensively verified that the Hückel aromatic [4n + 2]π (or antiaromatic [4n]π) molecules in the ground state are reversed to give Baird aromatic [4n]π (or Baird antiaromatic [4n + 2]π) molecules in the excited states. Since the Hückel (anti)aromaticity has great influence on the molecular properties and reaction mechanisms, the Baird (anti)aromaticity has been expected to act as a dominant factor in governing excited-state properties and processes, which has attracted intensive scientific investigations for the verification of the concept of reversed aromaticity in the excited states. In this scientific endeavor, porphyrinoids have recently played leading roles in the demonstration of the aromaticity reversal in the excited states and its conceptual development. The distinct structural and electronic nature of porphyhrinoids depending on their (anti)aromaticity allow the direct observation of excited-state aromaticity reversal, Baird's rule. The explicit experimental demonstration with porphyrinoids has contributed greatly to its conceptual development and application in novel functional organic materials. Based on the significant role of porphyrinoids in the field of excited-state aromaticity, this review provides an overview of the experimental verification of the reversal concept of excited-state aromaticity by porphyrinoids and the recent progress on its conceptual application in novel functional molecules.
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Affiliation(s)
- Jinseok Kim
- Department of Chemistry, Yonsei University, Seoul 03722, Korea.
| | - Juwon Oh
- Department of Chemistry, Soonchunhyang University, Asan-si 31538, Korea.
| | - Atsuhiro Osuka
- Department of Chemistry, Graduate School of Science, Kyoto University, Kyoto 606-8502, Japan.
| | - Dongho Kim
- Department of Chemistry, Yonsei University, Seoul 03722, Korea.
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4
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Ye L, Fang Y, Ou Z, Feng R, Chen M, Guo R, Kadish KM. Electrochemical Characterization of Bis‐Cobalt Hexaphyrin: A Selective Electrocatalyst for the Two‐Electron Reduction of Oxygen in Acid Media. ChemElectroChem 2021. [DOI: 10.1002/celc.202100063] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Affiliation(s)
- Lina Ye
- College of Computer Jilin Normal University Siping 136000 P. R. China
- School of Chemistry and Chemical Engineering Jiangsu University Zhenjiang 212013 P. R. China
| | - Yuanyuan Fang
- School of Chemistry and Chemical Engineering Jiangsu University Zhenjiang 212013 P. R. China
- Department of Chemistry University of Houston Houston TX 77204-5003 USA
| | - Zhongping Ou
- Department of Chemistry University of Houston Houston TX 77204-5003 USA
| | - Ru Feng
- School of Chemistry and Chemical Engineering Jiangsu University Zhenjiang 212013 P. R. China
| | - Minyuan Chen
- School of Chemistry and Chemical Engineering Jiangsu University Zhenjiang 212013 P. R. China
- Department of Chemistry University of Houston Houston TX 77204-5003 USA
| | - Rui Guo
- School of Chemistry and Chemical Engineering Jiangsu University Zhenjiang 212013 P. R. China
| | - Karl M. Kadish
- Department of Chemistry University of Houston Houston TX 77204-5003 USA
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5
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Dutta R, Chandra B, Hong SJ, Park Y, Jung YM, Lee CH. Post Synthetic Modification of Planar Antiaromatic Hexaphyrin (1.0.1.0.1.0) by Regio-Selective, Sequential S NAr. Molecules 2021; 26:molecules26041025. [PMID: 33672044 PMCID: PMC7919474 DOI: 10.3390/molecules26041025] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/18/2021] [Revised: 02/07/2021] [Accepted: 02/09/2021] [Indexed: 11/17/2022] Open
Abstract
In spite of unique structural, spectroscopic and redox properties, the synthetic variants of the planar, antiaromatic hexaphyrin (1.0.1.0.1.0) derivatives 2, has been limited due to the low yields and difficulty in access to the starting material. A chemical modification of the meso-substituents could be good alternative overcoming the synthetic barrier. Herein, we report a regio-selective nucleophilic aromatic substitution (SNAr) of meso-pentafluorophenyl group in rosarrin 2 with catechol. The reaction afforded benzodioxane fused rosarrin 3 as single product with high yield. The intrinsic antiaromatic character of the starting rosarrin 2 retained throughout the reactions. Clean, two electron reduction was achieved by treatment of 3 with SnCl2•2H2O affording 26π-electron aromatic rosarrin 4. The synthesized compounds exhibited noticeable changes in photophysical and redox properties compared with starting rosarrin 2.
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Affiliation(s)
- Ranjan Dutta
- Department of Chemistry, Kangwon National University, Chuncheon 24341, Korea; (R.D.); (B.C.); (S.-J.H.); (Y.M.J.)
| | - Brijesh Chandra
- Department of Chemistry, Kangwon National University, Chuncheon 24341, Korea; (R.D.); (B.C.); (S.-J.H.); (Y.M.J.)
| | - Seong-Jin Hong
- Department of Chemistry, Kangwon National University, Chuncheon 24341, Korea; (R.D.); (B.C.); (S.-J.H.); (Y.M.J.)
| | - Yeonju Park
- Kangwon Radiation Convergence Research Support Center, Kangwon National University, Chuncheon 24341, Korea;
| | - Young Mee Jung
- Department of Chemistry, Kangwon National University, Chuncheon 24341, Korea; (R.D.); (B.C.); (S.-J.H.); (Y.M.J.)
| | - Chang-Hee Lee
- Department of Chemistry, Kangwon National University, Chuncheon 24341, Korea; (R.D.); (B.C.); (S.-J.H.); (Y.M.J.)
- Correspondence: ; Tel.: +82-33-250-8490
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Lopes SMM, Pineiro M, Pinho e Melo TMVD. Corroles and Hexaphyrins: Synthesis and Application in Cancer Photodynamic Therapy. Molecules 2020; 25:E3450. [PMID: 32751215 PMCID: PMC7435872 DOI: 10.3390/molecules25153450] [Citation(s) in RCA: 20] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/25/2020] [Revised: 07/24/2020] [Accepted: 07/27/2020] [Indexed: 11/21/2022] Open
Abstract
Corroles and hexaphyrins are porphyrinoids with great potential for diverse applications. Like porphyrins, many of their applications are based on their unique capability to interact with light, i.e., based on their photophysical properties. Corroles have intense absorptions in the low-energy region of the uv-vis, while hexaphyrins have the capability to absorb light in the near-infrared (NIR) region, presenting photophysical features which are complementary to those of porphyrins. Despite the increasing interest in corroles and hexaphyrins in recent years, the full potential of both classes of compounds, regarding biological applications, has been hampered by their challenging synthesis. Herein, recent developments in the synthesis of corroles and hexaphyrins are reviewed, highlighting their potential application in photodynamic therapy.
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Affiliation(s)
| | | | - Teresa M. V. D. Pinho e Melo
- Coimbra Chemistry Centre and Department of Chemistry, University of Coimbra, 3004-535 Coimbra, Portugal; (S.M.M.L.); (M.P.)
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7
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Benchouaia R, Cissé N, Boitrel B, Sollogoub M, Le Gac S, Ménand M. Orchestrating Communications in a Three-Type Chirality Totem: Remote Control of the Chiroptical Response of a Möbius Aromatic System. J Am Chem Soc 2019; 141:11583-11593. [DOI: 10.1021/jacs.9b04074] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/27/2022]
Affiliation(s)
- Rajaa Benchouaia
- Univ Rennes, CNRS, ISCR (Institut des Sciences Chimiques de Rennes)−UMR 6226, Rennes F-35000, France
| | - Nicolas Cissé
- Univ Rennes, CNRS, ISCR (Institut des Sciences Chimiques de Rennes)−UMR 6226, Rennes F-35000, France
| | - Bernard Boitrel
- Univ Rennes, CNRS, ISCR (Institut des Sciences Chimiques de Rennes)−UMR 6226, Rennes F-35000, France
| | - Matthieu Sollogoub
- Sorbonne Université, CNRS, Institut Parisien de Chimie Moléculaire, IPCM (UMR 8232), F-75005 Paris, France
| | - Stéphane Le Gac
- Univ Rennes, CNRS, ISCR (Institut des Sciences Chimiques de Rennes)−UMR 6226, Rennes F-35000, France
| | - Mickaël Ménand
- Sorbonne Université, CNRS, Institut Parisien de Chimie Moléculaire, IPCM (UMR 8232), F-75005 Paris, France
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Soya T, Osuka A. Internally Bridged Hückel Aromatic [46]Decaphyrins: (Doubly‐Twisted‐Annuleno)Doubly‐Twisted‐Annulene Variants. Chemistry 2019; 25:5173-5176. [DOI: 10.1002/chem.201900819] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/22/2019] [Revised: 03/06/2019] [Indexed: 11/06/2022]
Affiliation(s)
- Takanori Soya
- Department of ChemistryGraduate School of ScienceKyoto University Sakyo-ku Kyoto 606-8502 Japan
| | - Atsuhiro Osuka
- Department of ChemistryGraduate School of ScienceKyoto University Sakyo-ku Kyoto 606-8502 Japan
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9
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Nakai A, Kim J, Kim D, Osuka A. 5,20-Bis(ethoxycarbonyl)-Substituted Antiaromatic [28]Hexaphyrin and Its Bis-Ni II and Bis-Cu II Complexes. Chem Asian J 2019; 14:968-971. [PMID: 30793503 DOI: 10.1002/asia.201900189] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/07/2019] [Indexed: 11/11/2022]
Abstract
5,20-Bis(ethoxycarbonyl)-[28]hexaphyrin was synthesized by acid catalyzed cross-condensation of meso-diaryl-substituted tripyrrane and ethyl 2-oxoacetate followed by subsequent oxidation. This hexaphyrin was found to be a stable 28π-antiaromatic compound with a dumbbell-like conformation. Upon oxidization with PbO2 , this [28]hexaphyrin was converted into an aromatic [26]hexaphyrin with a rectangular shape bearing two ester groups at the edge side. The [28]hexaphyrin can incorporate two NiII or CuII metals by using the ester carbonyl groups and three pyrrolic nitrogen atoms to give bis-NiII and bis-CuII complexes with essentially the same dumbbell-like structure. The antiaromatic properties of the [28]hexaphyrin and its metal complexes have been well characterized.
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Affiliation(s)
- Akito Nakai
- Department of Chemistry, Graduate School of Science, Kyoto University, Sakyo-ku, Kyoto, 606-8502, Japan
| | - Jinseok Kim
- Spectroscopy Laboratory for Functional π-Electronic Systems and Department of Chemistry, Yonsei University, Seoul, 120-749, Korea
| | - Dongho Kim
- Spectroscopy Laboratory for Functional π-Electronic Systems and Department of Chemistry, Yonsei University, Seoul, 120-749, Korea
| | - Atsuhiro Osuka
- Department of Chemistry, Graduate School of Science, Kyoto University, Sakyo-ku, Kyoto, 606-8502, Japan
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Higashino T, Kumagai A, Sakaki S, Imahori H. Reversible π-system switching of thiophene-fused thiahexaphyrins by solvent and oxidation/reduction. Chem Sci 2018; 9:7528-7539. [PMID: 30319753 PMCID: PMC6179095 DOI: 10.1039/c8sc02448k] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/04/2018] [Accepted: 08/07/2018] [Indexed: 12/23/2022] Open
Abstract
The concept of chemical topology has generated considerable interest among chemists and one of the state-of-the-art topics is Möbius topology in cyclic π-conjugated molecules. In this regard, expanded porphyrins have been extensively studied because of their facile topological interconversions and attractive optoelectronic properties. A typical example involves [28]hexaphyrins: they show topological conversion between planar Hückel and twisted Möbius topologies owing to their flexible structure. With this in mind, we designed a [28]hexaphyrin where one dimethine pyrrole unit was replaced with dithieno[3,4-b:3',4'-d]thiophene (β-DTT), aiming at a reversible switching between macrocyclic and cross-conjugated π-systems by a change in molecular topologies. Considering that the β-DTT unit can offer both macrocyclic and cross-conjugated π-circuits, we envisioned that a combination of the topological interconversion of [28]hexaphyrin with the two π-circuits of the β-DTT unit would enable a reversible switching between macrocyclic and cross-conjugated π-circuits on Möbius and Hückel topologies, respectively, by a simple conformational change. Unexpectedly, the hexaphyrin revealed a unique, unprecedented π-system switching between a Möbius cross-conjugated π-system and a Hückel antiaromatic π-system, which was fully supported by both experimental and theoretical investigations. Meanwhile, the [28]hexaphyrin was also found to be redox interconvertible with the corresponding [26]hexaphyrin with a Hückel cross-conjugated π-system. These results demonstrate that the β-DTT unit is a new effective motif to realize π-system switching by changing molecular and π-system topologies. Importantly, external stimuli, i.e., solvent, as well as oxidation/reduction can be used to trigger the topological changes in expanded porphyrins with the help of the β-DTT unit.
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Affiliation(s)
- Tomohiro Higashino
- Department of Molecular Engineering , Graduate School of Engineering , Kyoto University , Nishikyo-ku , Kyoto 615-8510 , Japan . ;
| | - Atsushi Kumagai
- Department of Molecular Engineering , Graduate School of Engineering , Kyoto University , Nishikyo-ku , Kyoto 615-8510 , Japan . ;
| | - Shigeyoshi Sakaki
- Fukui Institute for Fundamental Chemistry , Kyoto University , Sakyo-ku , Kyoto 606-8103 , Japan
| | - Hiroshi Imahori
- Department of Molecular Engineering , Graduate School of Engineering , Kyoto University , Nishikyo-ku , Kyoto 615-8510 , Japan . ;
- Institute for Integrated Cell-Material Sciences (WPI-iCeMS) , Kyoto University , Sakyo-ku , Kyoto 606-8501 , Japan
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Kim JO, Hong Y, Kim T, Cha WY, Yoneda T, Soya T, Osuka A, Kim D. Near-Infrared S 2 Fluorescence from Deprotonated Möbius Aromatic [32]Heptaphyrin. J Phys Chem Lett 2018; 9:4527-4531. [PMID: 30047264 DOI: 10.1021/acs.jpclett.8b01829] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/08/2023]
Abstract
This study revealed S2 fluorescence from deprotonated meso-pentafluorophenyl-substituted Möbius aromatic [32]heptaphyrin(1.1.1.1.1.1.1) that was formed upon treatment of neutral antiaromatic [32]heptephyrin with tetrabutylammonium fluoride. Higher excited-state dynamics and emission were studied by fs-transient absorption spectroscopy and a broad-band fluorescence upconversion technique. This is the first S2 fluorescence from chromophores with twisted Möbius topology, and the observation of S2 fluorescence in the near-infrared region has been unprecedented. The higher excited-state dynamics of neutral and deprotonated [32]heptaphyrins were compared by ultrafast transient absorption spectroscopy to understand the S2 fluorescence origin. In the antiaromatic [32]heptaphyrin, a fast time component of 65 fs was assigned as an internal conversion process from the SB state to the SQ state, which occurs prior to relaxation to the optically dark, lowest electronic state (SD). Therefore, the SQ state of the antiaromatic [32]heptaphyrin acts as a trap state intervening radiative transitions from the SB state to the S0 state. In deprotonated [32]heptaphyrin, the internal conversion from the SB state to the SQ state proceeds with a slower time constant of 150 fs for owing to its rigid structure, helping the observation of its S2 fluorescence.
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Affiliation(s)
- Jun Oh Kim
- Spectroscopy Laboratory for Functional π-Electronic Systems and Department of Chemistry , Yonsei University , Seoul 03722 , Korea
| | - Yongseok Hong
- Spectroscopy Laboratory for Functional π-Electronic Systems and Department of Chemistry , Yonsei University , Seoul 03722 , Korea
| | - Taeyeon Kim
- Spectroscopy Laboratory for Functional π-Electronic Systems and Department of Chemistry , Yonsei University , Seoul 03722 , Korea
| | - Won-Young Cha
- Spectroscopy Laboratory for Functional π-Electronic Systems and Department of Chemistry , Yonsei University , Seoul 03722 , Korea
| | - Tomoki Yoneda
- Department of Chemistry, Graduate School of Science , Kyoto University , Sakyo-ku , Kyoto 606-8502 , Japan
| | - Takanori Soya
- Department of Chemistry, Graduate School of Science , Kyoto University , Sakyo-ku , Kyoto 606-8502 , Japan
| | - Atsuhiro Osuka
- Department of Chemistry, Graduate School of Science , Kyoto University , Sakyo-ku , Kyoto 606-8502 , Japan
| | - Dongho Kim
- Spectroscopy Laboratory for Functional π-Electronic Systems and Department of Chemistry , Yonsei University , Seoul 03722 , Korea
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12
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The chemistry of the carbon-transition metal double and triple bond: Annual survey covering the year 2016. Coord Chem Rev 2018. [DOI: 10.1016/j.ccr.2017.09.003] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/07/2023]
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13
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14
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Ruffin H, Nyame Mendendy Boussambe G, Roisnel T, Dorcet V, Boitrel B, Le Gac S. Tren-Capped Hexaphyrin Zinc Complexes: Interplaying Molecular Recognition, Möbius Aromaticity, and Chirality. J Am Chem Soc 2017; 139:13847-13857. [DOI: 10.1021/jacs.7b07559] [Citation(s) in RCA: 24] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
Affiliation(s)
- Hervé Ruffin
- Institut des Sciences Chimiques
de Rennes, UMR CNRS 6226, Université de Rennes 1, 263 avenue
du Général Leclerc, 35042 Rennes cedex, France
| | - Gildas Nyame Mendendy Boussambe
- Institut des Sciences Chimiques
de Rennes, UMR CNRS 6226, Université de Rennes 1, 263 avenue
du Général Leclerc, 35042 Rennes cedex, France
| | - Thierry Roisnel
- Institut des Sciences Chimiques
de Rennes, UMR CNRS 6226, Université de Rennes 1, 263 avenue
du Général Leclerc, 35042 Rennes cedex, France
| | - Vincent Dorcet
- Institut des Sciences Chimiques
de Rennes, UMR CNRS 6226, Université de Rennes 1, 263 avenue
du Général Leclerc, 35042 Rennes cedex, France
| | - Bernard Boitrel
- Institut des Sciences Chimiques
de Rennes, UMR CNRS 6226, Université de Rennes 1, 263 avenue
du Général Leclerc, 35042 Rennes cedex, France
| | - Stéphane Le Gac
- Institut des Sciences Chimiques
de Rennes, UMR CNRS 6226, Université de Rennes 1, 263 avenue
du Général Leclerc, 35042 Rennes cedex, France
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15
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Chen M, Ou Z, Feng R, Fang Y, Zhang Y, Kadish KM. Electrochemistry and spectroelectrochemistry of metallohexaphyrins containing bis-copper or bis-zinc central metal ions. J PORPHYR PHTHALOCYA 2017. [DOI: 10.1142/s108842461750016x] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022]
Abstract
Two meso-substituted bis-metallohexaphyrins were synthesized and characterized as to their electrochemical and spectroelectrochemical properties in nonaqueous media. The examined compounds are represented as HexaPyM2, where HexaPy represents an expanded macrocycle containing six pyrroles and M [Formula: see text] Cu(II) or Zn(II). Each hexaphyrin undergoes four reversible one-electron reductions and two irreversible oxidations in PhCN or CH2Cl2 containing 0.1 M tetrabutylammonium perchlorate. The HexaPyCu2 is much easier to reduce than the corresponding Cu porphyrin with the same meso-substituents and it is also easier to reduce than a structurally related Cu(II) tripyrrinone. All four reductions of HexaPyM2 are assigned as [Formula: see text]-ring centered electron transfers to give [HexaPyM2][Formula: see text], [HexaPyM2][Formula: see text], [HexaPyM2][Formula: see text] and [HexaPyM2][Formula: see text], respectively. The neutral HexaPyCu2 and HexaPyZn2 also exhibit two oxidations, both of which are irreversible at a scan rate of 0.10 V/s. The peak separation between the first one-electron addition and the first electron abstraction of HexaPyM2 ranges from 1.46 to 1.72 V. These non-thermodynamic HOMO–LUMO gaps are similar to the range of HOMO–LUMO gaps for previously characterized sapphyrins which contain five pyrrole ring in the macrocycle.
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Affiliation(s)
- Minyuan Chen
- School of Chemistry and Chemical Engineering, Jiangsu University, Zhenjiang 212013, China
- Department of Chemistry, University of Houston, Houston, TX 77204-5003, USA
| | - Zhongping Ou
- School of Chemistry and Chemical Engineering, Jiangsu University, Zhenjiang 212013, China
| | - Ru Feng
- School of Chemistry and Chemical Engineering, Jiangsu University, Zhenjiang 212013, China
| | - Yuanyuan Fang
- School of Chemistry and Chemical Engineering, Jiangsu University, Zhenjiang 212013, China
| | - Ying Zhang
- School of Chemistry and Chemical Engineering, Jiangsu University, Zhenjiang 212013, China
| | - Karl M. Kadish
- Department of Chemistry, University of Houston, Houston, TX 77204-5003, USA
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16
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Sung YM, Oh J, Cha WY, Kim W, Lim JM, Yoon MC, Kim D. Control and Switching of Aromaticity in Various All-Aza-Expanded Porphyrins: Spectroscopic and Theoretical Analyses. Chem Rev 2016; 117:2257-2312. [DOI: 10.1021/acs.chemrev.6b00313] [Citation(s) in RCA: 128] [Impact Index Per Article: 16.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
Affiliation(s)
- Young Mo Sung
- Spectroscopy
Laboratory for Functional π-Electronic Systems and Department
of Chemistry, Yonsei University, Seoul 120-749, South Korea
| | - Juwon Oh
- Spectroscopy
Laboratory for Functional π-Electronic Systems and Department
of Chemistry, Yonsei University, Seoul 120-749, South Korea
| | - Won-Young Cha
- Spectroscopy
Laboratory for Functional π-Electronic Systems and Department
of Chemistry, Yonsei University, Seoul 120-749, South Korea
| | - Woojae Kim
- Spectroscopy
Laboratory for Functional π-Electronic Systems and Department
of Chemistry, Yonsei University, Seoul 120-749, South Korea
| | - Jong Min Lim
- Spectroscopy
Laboratory for Functional π-Electronic Systems and Department
of Chemistry, Yonsei University, Seoul 120-749, South Korea
- Physical
and Theoretical Chemistry Laboratory, Department of Chemistry, University of Oxford, South Parks Road, Oxford OX1 3QZ, United Kingdom
| | - Min-Chul Yoon
- Spectroscopy
Laboratory for Functional π-Electronic Systems and Department
of Chemistry, Yonsei University, Seoul 120-749, South Korea
- Manufacturing
Engineering Team, Memory Manufacturing Operation Center, Samsung Electronics, Samsungjeonja-ro 1, Hwasung-si, Gyeonggi-do 18448, South Korea
| | - Dongho Kim
- Spectroscopy
Laboratory for Functional π-Electronic Systems and Department
of Chemistry, Yonsei University, Seoul 120-749, South Korea
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17
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Abstract
This review underscores the conformational flexibility of porphyrinoids, a unique class of functional molecules, starting from the smallest triphyrins(1.1.1) via [18]porphyrins(1.1.1.1) and concluding with a variety of expanded porphyrinoids and heteroporphyrinoids, including the enormous [96]tetracosaphyrin(1.0.1.0.1.0.1.0.1.0.1.0.1.0.1.0.1.0.1.0.1.0.1.0). The specific flexibility of porphyrinoids has been documented as instrumental in the designing or redesigning of macrocyclic frames, particularly in the search for adjustable platforms for coordination or organometallic chemistry, anion binding, or mechanistic switches in molecular devices. A structural prearrangement to coordinate one or more metal ions has been outlined. The coverage of the topic focuses on representative examples of geometry or conformational rearrangements for each selected class of the numerous porphyrinoids accordingly categorized by the number of built-in carbo- or heterocycles.
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Affiliation(s)
- Bartosz Szyszko
- Wydział Chemii, Uniwersytet Wrocławski , ul. F. Joliot-Curie 14, 50-383 Wrocław, Poland
| | - Michał J Białek
- Wydział Chemii, Uniwersytet Wrocławski , ul. F. Joliot-Curie 14, 50-383 Wrocław, Poland
| | - Ewa Pacholska-Dudziak
- Wydział Chemii, Uniwersytet Wrocławski , ul. F. Joliot-Curie 14, 50-383 Wrocław, Poland
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18
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Gutsche CS, Ortwerth M, Gräfe S, Flanagan KJ, Senge MO, Reissig HU, Kulak N, Wiehe A. Nucleophilic Aromatic Substitution on Pentafluorophenyl-Substituted Dipyrranes and Tetrapyrroles as a Route to Multifunctionalized Chromophores for Potential Application in Photodynamic Therapy. Chemistry 2016; 22:13953-13964. [PMID: 27549436 DOI: 10.1002/chem.201601857] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/20/2016] [Indexed: 12/12/2022]
Abstract
The application of porphyrinoids in biomedical fields, such as photodynamic therapy (PDT), requires the introduction of functional groups to tune their solubility for the biological environment and to allow a coupling to other active moieties or carrier systems. A valuable motif in this regard is the pentafluorophenyl (PFP) substituent, which can easily undergo a regiospecific nucleophilic replacement (SN Ar) of its para-fluorine atom by a number of nucleophiles. Here, it is shown that, instead of amino-substitution on the final porphyrinoid or BODIPY (boron dipyrromethene), the precursor 5-(PFP)-dipyrrane can be modified with amines (or alcohols). These dipyrranes were transformed into amino-substituted BODIPYs. Condensation of these dipyrranes with aldehydes gave access to trans-A2 B2 -porphyrins and trans-A2 B-corroles. By using pentafluorobenzaldehyde, it was possible to introduce another para-fluorine atom, which enabled the synthesis of multifunctionalized tetrapyrroles. Furthermore, alkoxy- and amino-substituted dipyrranes were applied to the synthesis of A3 B3 -hexaphyrins. The polar porphyrins that were prepared by using this method exhibited in vitro PDT activity against several tumor cell lines.
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Affiliation(s)
- Claudia S Gutsche
- Institut für Chemie und Biochemie, Freie Universität Berlin, Fabeckstrasse 34/36, 14195, Berlin, Germany.,Institut für Chemie und Biochemie, Freie Universität Berlin, Takustr. 3, 14195, Berlin, Germany.,biolitec research GmbH, Otto-Schott-Str. 15, 07745, Jena, Germany
| | - Marlene Ortwerth
- Institut für Chemie und Biochemie, Freie Universität Berlin, Fabeckstrasse 34/36, 14195, Berlin, Germany.,Institut für Chemie und Biochemie, Freie Universität Berlin, Takustr. 3, 14195, Berlin, Germany.,biolitec research GmbH, Otto-Schott-Str. 15, 07745, Jena, Germany
| | - Susanna Gräfe
- biolitec research GmbH, Otto-Schott-Str. 15, 07745, Jena, Germany
| | - Keith J Flanagan
- School of Chemistry, SFI Tetrapyrrole Laboratory, Trinity Biomedical Sciences Institute, Trinity College Dublin, The University of Dublin, 152-160 Pearse Street, Dublin 2, Ireland
| | - Mathias O Senge
- School of Chemistry, SFI Tetrapyrrole Laboratory, Trinity Biomedical Sciences Institute, Trinity College Dublin, The University of Dublin, 152-160 Pearse Street, Dublin 2, Ireland
| | - Hans-Ulrich Reissig
- Institut für Chemie und Biochemie, Freie Universität Berlin, Takustr. 3, 14195, Berlin, Germany
| | - Nora Kulak
- Institut für Chemie und Biochemie, Freie Universität Berlin, Fabeckstrasse 34/36, 14195, Berlin, Germany
| | - Arno Wiehe
- Institut für Chemie und Biochemie, Freie Universität Berlin, Takustr. 3, 14195, Berlin, Germany. .,biolitec research GmbH, Otto-Schott-Str. 15, 07745, Jena, Germany.
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19
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Tanaka T, Osuka A. Chemistry of meso-Aryl-Substituted Expanded Porphyrins: Aromaticity and Molecular Twist. Chem Rev 2016; 117:2584-2640. [DOI: 10.1021/acs.chemrev.6b00371] [Citation(s) in RCA: 283] [Impact Index Per Article: 35.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Takayuki Tanaka
- Department of Chemistry,
Graduate School of Science, Kyoto University, Kyoto 606-8501, Japan
| | - Atsuhiro Osuka
- Department of Chemistry,
Graduate School of Science, Kyoto University, Kyoto 606-8501, Japan
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