51
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Patra SK, Sahu K, Patra B, Mondal S, Kar S. An N, N′-Bridged Corrole: First Example of a N21, N22-Methylene-Bridged Corrole Derivative. European J Org Chem 2018. [DOI: 10.1002/ejoc.201801308] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Affiliation(s)
- Sajal Kumar Patra
- School of Chemical Sciences; National Institute of Science Education and Research (NISER); 752050 Bhubaneswar Khordha India
- Training School Complex; Homi Bhabha National Institute; Anushakti Nagar 400 094 Mumbai India
| | - Kasturi Sahu
- School of Chemical Sciences; National Institute of Science Education and Research (NISER); 752050 Bhubaneswar Khordha India
- Training School Complex; Homi Bhabha National Institute; Anushakti Nagar 400 094 Mumbai India
| | - Bratati Patra
- School of Chemical Sciences; National Institute of Science Education and Research (NISER); 752050 Bhubaneswar Khordha India
- Training School Complex; Homi Bhabha National Institute; Anushakti Nagar 400 094 Mumbai India
| | - Sruti Mondal
- School of Chemical Sciences; National Institute of Science Education and Research (NISER); 752050 Bhubaneswar Khordha India
- Training School Complex; Homi Bhabha National Institute; Anushakti Nagar 400 094 Mumbai India
| | - Sanjib Kar
- School of Chemical Sciences; National Institute of Science Education and Research (NISER); 752050 Bhubaneswar Khordha India
- Training School Complex; Homi Bhabha National Institute; Anushakti Nagar 400 094 Mumbai India
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52
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Demissie TB, Conradie J, Vazquez-Lima H, Ruud K, Ghosh A. Rare and Nonexistent Nitrosyls: Periodic Trends and Relativistic Effects in Ruthenium and Osmium Porphyrin-Based {MNO} 7 Complexes. ACS OMEGA 2018; 3:10513-10516. [PMID: 31459176 PMCID: PMC6645279 DOI: 10.1021/acsomega.8b01434] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/24/2018] [Accepted: 08/14/2018] [Indexed: 05/26/2023]
Abstract
Relativistic and nonrelativistic density functional theory calculations were used to investigate rare or nonexistent ruthenium and osmium analogues of nitrosylhemes. Strong ligand field effects and, to a lesser degree, relativistic effects were found to destabilize {RuNO}7 porphyrins relative to their {FeNO}7 analogues. Substantially stronger relativistic effects account for the even greater instability and/or nonexistence of {OsNO}7 porphyrin derivatives.
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Affiliation(s)
- Taye B. Demissie
- Department
of Chemistry and Hylleraas Centre for Quantum Molecular Sciences, University of Tromsø—The Arctic University
of Norway, N-9037 Tromsø, Norway
- Materials
Science Program, Department of Chemistry, Addis Ababa University, Addis
Ababa, Ethiopia
| | - Jeanet Conradie
- Department
of Chemistry and Hylleraas Centre for Quantum Molecular Sciences, University of Tromsø—The Arctic University
of Norway, N-9037 Tromsø, Norway
- Department
of Chemistry, University of the Free State, P.O. Box 339, 9300 Bloemfontein, Republic of South Africa
| | - Hugo Vazquez-Lima
- Department
of Chemistry and Hylleraas Centre for Quantum Molecular Sciences, University of Tromsø—The Arctic University
of Norway, N-9037 Tromsø, Norway
| | - Kenneth Ruud
- Department
of Chemistry and Hylleraas Centre for Quantum Molecular Sciences, University of Tromsø—The Arctic University
of Norway, N-9037 Tromsø, Norway
| | - Abhik Ghosh
- Department
of Chemistry and Hylleraas Centre for Quantum Molecular Sciences, University of Tromsø—The Arctic University
of Norway, N-9037 Tromsø, Norway
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53
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Alemayehu A, M cCormick LJ, Gagnon KJ, Borisov SM, Ghosh A. Stable Platinum(IV) Corroles: Synthesis, Molecular Structure, and Room-Temperature Near-IR Phosphorescence. ACS OMEGA 2018; 3:9360-9368. [PMID: 31459069 PMCID: PMC6645213 DOI: 10.1021/acsomega.8b01149] [Citation(s) in RCA: 22] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/26/2018] [Accepted: 08/01/2018] [Indexed: 05/17/2023]
Abstract
A series of stable Pt(IV) corrole complexes with the general formula PtIV[TpXPC](m/p-C6H4CN)(py), where TpXPC3- is the trianion of a tris(p-X-phenyl)corrole and X = CF3, H, and CH3, has been synthesized, affording key physicochemical data on a rare and elusive class of metallocorroles. Single-crystal X-ray structures of two of the complexes revealed very short equatorial Pt-N distances of 1.94-1.97 Å, an axial Pt-C distance of ∼2.03 Å, and an axial Pt-N distance of ∼2.22 Å. The complexes exhibit Soret maxima at ∼430 nm, which are essentially independent of the meso-aryl para substituents, and strong Q bands with the most intense peak at 595-599 nm. The substituent-independent Soret maxima are consistent with an innocent PtIV-corrole3- description for the complexes. The low reduction potentials (-1.45 ± 0.08 V vs saturated calomel reference electrode) also support a highly stable Pt(IV) ground state as opposed to a noninnocent corrole•2- description. The reductions, however, are irreversible, which suggests that they involve concomitant cleavage of the Pt-aryl bond. Unlike Pt(IV) porphyrins, two of the complexes, PtIV[TpXPC](m-C6H4CN)(py) (X = CF3 and CH3), were found to exhibit room-temperature near-IR phosphorescence with emission maxima at 813 and 826 nm, respectively. The quantum yield of ∼0.3% is comparable to those observed for six-coordinate Ir(III) corroles.
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Affiliation(s)
- Abraham
B. Alemayehu
- Department
of Chemistry, UiT—The Arctic University
of Norway, N-9037 Tromsø, Norway
| | - Laura J. McCormick
- Advanced
Light Source, Lawrence Berkeley National
Laboratory, Berkeley, California 94720-8229, United States
| | - Kevin J. Gagnon
- Advanced
Light Source, Lawrence Berkeley National
Laboratory, Berkeley, California 94720-8229, United States
| | - Sergey M. Borisov
- Institute
of Analytical Chemistry and Food Chemistry, NAWI Graz, Graz University of Technology, Stremayrgasse 9, 8010 Graz, Austria
| | - Abhik Ghosh
- Department
of Chemistry, UiT—The Arctic University
of Norway, N-9037 Tromsø, Norway
- E-mail:
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54
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Garai A, Sobottka S, Schepper R, Sinha W, Bauer M, Sarkar B, Kar S. Chromium Complexes with Oxido and Corrolato Ligands: Metal-Based Redox Processes versus Ligand Non-Innocence. Chemistry 2018; 24:12613-12622. [PMID: 29882607 DOI: 10.1002/chem.201801452] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/22/2018] [Revised: 06/06/2018] [Indexed: 11/09/2022]
Abstract
Metal- versus ligand-centered redox processes and the effects of substituents on the ligands on the spectroscopic properties of the metal complexes are at the heart of research on metal complexes with non-innocent ligands. This work presents three examples of chromium complexes that contain both oxido and corrolato ligands, with the substituents on the corrolato ligands being different in the three cases. Combined X-ray crystallographic, electrochemical, UV/Vis/NIR/EPR spectroelectrochemical, and EXAFS/XANES measurements, together with DFT calculations, have been used to probe the complexes in three different redox forms. This combined approach makes it possible to address questions related to chromium- versus corrolato-centered redox processes, and the accessibility (or not) of CrIV , CrV , and CrVI in these complexes, as well as their spin states. To the best of our knowledge, these are the first EXAFS/XANES investigations on Cr-corrolato complexes in different redox forms, and hence these data should set benchmarks for future investigations on such complexes by this method.
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Affiliation(s)
- Antara Garai
- School of Chemical Sciences, National Institute of Science Education and Research (NISER), Bhubaneswar, Khordha, 752050, India
| | - Sebastian Sobottka
- Institut für Chemie und Biochemie, Anorganische Chemie, Freie Universität Berlin, Fabeckstraße 34-36, 14195, Berlin, Germany
| | - Rahel Schepper
- Universität Paderborn, Naturwissenschaftliche Fakultät, Department Chemie, Warburger Straße 100, 33098, Paderborn, Germany
| | - Woormileela Sinha
- School of Chemical Sciences, National Institute of Science Education and Research (NISER), Bhubaneswar, Khordha, 752050, India
| | - Matthias Bauer
- Universität Paderborn, Naturwissenschaftliche Fakultät, Department Chemie, Warburger Straße 100, 33098, Paderborn, Germany
| | - Biprajit Sarkar
- Institut für Chemie und Biochemie, Anorganische Chemie, Freie Universität Berlin, Fabeckstraße 34-36, 14195, Berlin, Germany
| | - Sanjib Kar
- School of Chemical Sciences, National Institute of Science Education and Research (NISER), Bhubaneswar, Khordha, 752050, India.,Homi Bhabha National Institute, Training School Complex, Anushakti Nagar, Mumbai, 400094, India
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55
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Thomas KE, Gagnon KJ, MCormick LJ, Ghosh A. Molecular structure of gold 2,3,7,8,12,13,17,18-octabromo-5,10,15-tris(4′-pentafluorosulfanylphenyl)corrole: Potential insights into the insolubility of gold octabromocorroles. J PORPHYR PHTHALOCYA 2018. [DOI: 10.1142/s1088424618500815] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/30/2022]
Abstract
X-ray structures of gold corroles, which are still rather uncommon, afford significant insights into intermolecular interactions involving Au(III), a subject that has been much less studied than aurophilic and metallophilic interactions involving Au(I). The X-ray structure of gold [Formula: see text]-octabromo-meso-tris(para-pentafluorosulfanylphenyl)corrole, reported herein, has revealed two Au···Br interactions (∼4.2 Å) per Au atom. We suggest that analogous but somewhat stronger Au···Br interactions are a key factor underlying the remarkable insolubility of gold octabromocorrole derivatives.
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Affiliation(s)
- Kolle E. Thomas
- Department of Chemistry, UiT — The Arctic University of Norway, N-9037 Tromsø, Norway
| | - Kevin J. Gagnon
- Advanced Light Source, Lawrence Berkeley National Laboratory, Berkeley, CA 94720-8229, USA
| | - Laura J. MCormick
- Advanced Light Source, Lawrence Berkeley National Laboratory, Berkeley, CA 94720-8229, USA
| | - Abhik Ghosh
- Department of Chemistry, UiT — The Arctic University of Norway, N-9037 Tromsø, Norway
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56
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Ganguly S, MCormick LJ, Conradie J, Gagnon KJ, Sarangi R, Ghosh A. Electronic Structure of Manganese Corroles Revisited: X-ray Structures, Optical and X-ray Absorption Spectroscopies, and Electrochemistry as Probes of Ligand Noninnocence. Inorg Chem 2018; 57:9656-9669. [DOI: 10.1021/acs.inorgchem.8b00537] [Citation(s) in RCA: 23] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/26/2023]
Affiliation(s)
- Sumit Ganguly
- Department of Chemistry, UiT—The Arctic University of Norway, Tromsø N-9037, Norway
| | - Laura J. MCormick
- Advanced Light Source, Lawrence Berkeley National Laboratory, Berkeley, California 94720-8229, United States
| | - Jeanet Conradie
- Department of Chemistry, University of the Free State, Bloemfontein 9300, Republic of South Africa
| | - Kevin J. Gagnon
- Advanced Light Source, Lawrence Berkeley National Laboratory, Berkeley, California 94720-8229, United States
| | - Ritimukta Sarangi
- Structural Molecular Biology (SMB), Stanford Synchrotron Radiation Lightsource (SSRL), SLAC National Accelerator Laboratory, Menlo Park, California 94306, United States
| | - Abhik Ghosh
- Department of Chemistry, UiT—The Arctic University of Norway, Tromsø N-9037, Norway
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57
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Thomassen IK, M cCormick LJ, Ghosh A. Synthesis and Molecular Structure of a Copper Octaiodocorrole. ACS OMEGA 2018; 3:5106-5110. [PMID: 31458725 PMCID: PMC6641707 DOI: 10.1021/acsomega.8b00616] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/31/2018] [Accepted: 04/23/2018] [Indexed: 05/20/2023]
Abstract
Although rather delicate on account of their propensity to undergo deiodination, β-octaiodoporphyrinoids are of considerable interest as potential precursors to novel β-octasubstituted macrocycles. Presented herein are early results of our efforts to synthesize β-octaiodocorrole derivatives. Oxidative condensation of 3,4-diiodopyrrole and aromatic aldehydes failed to yield free-base octaiodocorroles. Treatment of copper meso-tris(p-cyanophenyl)corrole with N-iodosuccinimide and trifluoroacetic acid over several hours, however, yielded the desired β-octaiodinated product in ∼22% yield. Single-crystal X-ray structure determination of the product revealed a strongly saddled corrole macrocycle with metrical parameters very close to those of analogous Cu octabromocorrole complexes. The compound was also found to exhibit an exceptionally red-shifted Soret maximum (464 nm in dichloromethane), underscoring the remarkable electronic effect of β-octaiodo substitution.
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Affiliation(s)
- Ivar K. Thomassen
- Department
of Chemistry, UiT-The Arctic University
of Norway, Tromsø N-9037, Norway
| | - Laura J. McCormick
- Advanced
Light Source, Lawrence Berkeley National
Laboratory, Berkeley, California 94720-8229, United States
| | - Abhik Ghosh
- Department
of Chemistry, UiT-The Arctic University
of Norway, Tromsø N-9037, Norway
- E-mail: . Tel: +47 45476145
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58
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Maurya YK, Noda K, Yamasumi K, Mori S, Uchiyama T, Kamitani K, Hirai T, Ninomiya K, Nishibori M, Hori Y, Shiota Y, Yoshizawa K, Ishida M, Furuta H. Ground-State Copper(III) Stabilized by N-Confused/N-Linked Corroles: Synthesis, Characterization, and Redox Reactivity. J Am Chem Soc 2018; 140:6883-6892. [DOI: 10.1021/jacs.8b01876] [Citation(s) in RCA: 31] [Impact Index Per Article: 5.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Affiliation(s)
- Yogesh Kumar Maurya
- Department of Chemistry and Biochemistry, Graduate School of Engineering and Center for Molecular Systems, Kyushu University, Fukuoka 819-0395, Japan
| | - Katsuya Noda
- Department of Chemistry and Biochemistry, Graduate School of Engineering and Center for Molecular Systems, Kyushu University, Fukuoka 819-0395, Japan
| | - Kazuhisa Yamasumi
- Department of Chemistry and Biochemistry, Graduate School of Engineering and Center for Molecular Systems, Kyushu University, Fukuoka 819-0395, Japan
| | - Shigeki Mori
- Advanced Research Support Center, Ehime University, Matsuyama 790-8577, Japan
| | - Tomoki Uchiyama
- Japan Synchrotron Radiation Research Institute, SPring-8, Hyogo 679-5198, Japan
| | - Kazutaka Kamitani
- Institute for Materials Chemistry and Engineering, Kyushu University, Fukuoka 819-0395, Japan
| | - Tomoyasu Hirai
- Institute for Materials Chemistry and Engineering, Kyushu University, Fukuoka 819-0395, Japan
| | - Kakeru Ninomiya
- Faculty of Engineering Sciences, Kyushu University, Fukuoka 816-8580, Japan
| | - Maiko Nishibori
- Faculty of Engineering Sciences, Kyushu University, Fukuoka 816-8580, Japan
| | - Yuta Hori
- Institute for Materials Chemistry and Engineering, Kyushu University, Fukuoka 819-0395, Japan
| | - Yoshihito Shiota
- Institute for Materials Chemistry and Engineering, Kyushu University, Fukuoka 819-0395, Japan
| | - Kazunari Yoshizawa
- Institute for Materials Chemistry and Engineering, Kyushu University, Fukuoka 819-0395, Japan
| | - Masatoshi Ishida
- Department of Chemistry and Biochemistry, Graduate School of Engineering and Center for Molecular Systems, Kyushu University, Fukuoka 819-0395, Japan
| | - Hiroyuki Furuta
- Department of Chemistry and Biochemistry, Graduate School of Engineering and Center for Molecular Systems, Kyushu University, Fukuoka 819-0395, Japan
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59
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Thomas KE, McCormick LJ, Carrié D, Vazquez-Lima H, Simonneaux G, Ghosh A. Halterman Corroles and Their Use as a Probe of the Conformational Dynamics of the Inherently Chiral Copper Corrole Chromophore. Inorg Chem 2018; 57:4270-4276. [PMID: 29608308 DOI: 10.1021/acs.inorgchem.7b02767] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
Halterman corroles have been synthesized for the first time from pyrrole and Halterman's aldehyde via Gryko's "water-methanol method". These were derivatized to the corresponding copper complexes and subsequently to the β-octabromo complexes. Electronic circular dichroism spectra were recorded for the enantiopure copper complexes, affording the first such measurements for the inherently chiral Cu corrole chromophore. Interestingly, for a given configuration of the Halterman substituents, X-ray crystallographic studies revealed both P and M conformations of the Cu-corrole core, proving that the substituents, even in conjunction with β-octabromination, are unable to lock the Cu-corrole core into a given chirality. The overall body of evidence strongly indicates a dynamic equilibrium between the P and M conformations. Such an interconversion, which presumably proceeds via saddling inversion, provides a rationale for our failure so far to resolve sterically hindered Cu corroles into their constituent enantiomers by means of chiral HPLC.
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Affiliation(s)
- Kolle E Thomas
- Department of Chemistry , UiT - The Arctic University of Norway , N-9037 Tromsø , Norway
| | - Laura J McCormick
- Advanced Light Source , Lawrence Berkeley National Laboratory , Berkeley , California 94720-8229 , United States
| | - Daniel Carrié
- Institut des Sciences Chimiques de Rennes, UMR 6226 , Université de Rennes 1 , Campus de Beaulieu , 35042 Rennes , France
| | - Hugo Vazquez-Lima
- Department of Chemistry , UiT - The Arctic University of Norway , N-9037 Tromsø , Norway
| | - Gérard Simonneaux
- Institut des Sciences Chimiques de Rennes, UMR 6226 , Université de Rennes 1 , Campus de Beaulieu , 35042 Rennes , France
| | - Abhik Ghosh
- Department of Chemistry , UiT - The Arctic University of Norway , N-9037 Tromsø , Norway
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60
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Shimizu D, Osuka A. Porphyrinoids as a platform of stable radicals. Chem Sci 2018; 9:1408-1423. [PMID: 29675188 PMCID: PMC5892410 DOI: 10.1039/c7sc05210c] [Citation(s) in RCA: 87] [Impact Index Per Article: 14.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/08/2017] [Accepted: 01/05/2018] [Indexed: 12/15/2022] Open
Abstract
The non-innocent ligand nature of porphyrins was observed for compound I in enzymatic cycles of cytochrome P450. Such porphyrin radicals were first regarded as reactive intermediates in catabolism, but recent studies have revealed that porphyrinoids, including porphyrins, ring-contracted porphyrins, and ring-expanded porphyrins, display excellent radical-stabilizing abilities to the extent that radicals can be handled like usual closed-shell organic molecules. This review surveys four types of stable porphyrinoid radical and covers their synthetic methods and properties such as excellent redox properties, NIR absorption, and magnetic properties. The radical-stabilizing abilities of porphyrinoids stem from their unique macrocyclic conjugated systems with high electronic and structural flexibilities.
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Affiliation(s)
- Daiki Shimizu
- Department of Chemistry , Graduate School of Science , Kyoto University , Kyoto 606-8502 , Japan .
| | - Atsuhiro Osuka
- Department of Chemistry , Graduate School of Science , Kyoto University , Kyoto 606-8502 , Japan .
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61
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Patra B, Sobottka S, Mondal S, Sarkar B, Kar S. Metal coordination induced ring contraction of porphyrin derivatives. Chem Commun (Camb) 2018; 54:9945-9948. [DOI: 10.1039/c8cc04670k] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Abstract
Ferrocenyl-porphyrin derivatives upon treatment with silver acetate at room temperature show ring contraction followed by Ag-chelation.
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Affiliation(s)
- Bratati Patra
- School of Chemical Sciences
- National Institute of Science Education and Research (NISER)
- Bhubaneswar – 751005
- India
- Homi Bhabha National Institute
| | | | - Sruti Mondal
- School of Chemical Sciences
- National Institute of Science Education and Research (NISER)
- Bhubaneswar – 751005
- India
- Homi Bhabha National Institute
| | | | - Sanjib Kar
- School of Chemical Sciences
- National Institute of Science Education and Research (NISER)
- Bhubaneswar – 751005
- India
- Homi Bhabha National Institute
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62
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Song Y, Fang Y, Ou Z, Capar J, Wang C, Conradie J, Thomas KE, Wamser CC, Ghosh A, Kadish KM. Influence of β-octabromination on free-base triarylcorroles: Electrochemistry and protonation-deprotonation reactions in nonaqueous media. J PORPHYR PHTHALOCYA 2017. [DOI: 10.1142/s1088424617500602] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022]
Abstract
Electrochemical and acid-base properties of four free-base triarylcorroles were examined in nonaqueous media. These compounds are represented here as (tdcc)H[Formula: see text], (tpfc)H[Formula: see text], (Br[Formula: see text]tdcc)H[Formula: see text] and (Br[Formula: see text]tpfc)H[Formula: see text], where tdcc and tpfc are the trianions of tris(2,6-dichlorophenyl)corrole and tris(pentafluorophenyl)corrole, respectively. Different spectroscopic and electrochemical properties were observed for the [Formula: see text]-brominated corroles as compared to the non-brominated derivatives, due in part to the corrole ring distortion and in part to the strong electron-withdrawing properties of the Br groups. The brominated free-base corroles are easier to deprotonate than the non-brominated corroles in solution, which was confirmed by electrochemistry and spectroelectrochemistry as well as protonation/deprotonation reactions of the compounds with acid or base in PhCN. The electrochemistry of the protonated and deprotonated corroles is presented and comparisons made with previously published data for other protonated and deprotonated free-base corroles under the same solution conditions.
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Affiliation(s)
- Yang Song
- Department of Chemistry, University of Houston, Houston, Texas 77204-5003, USA
| | - Yuanyuan Fang
- Department of Chemistry, University of Houston, Houston, Texas 77204-5003, USA
- School of Chemistry and Chemical Engineering, Jiangsu University, Zhenjiang 212013, China
| | - Zhongping Ou
- Department of Chemistry, University of Houston, Houston, Texas 77204-5003, USA
| | - Jan Capar
- Department of Chemistry and Center for Theoretical and Computational Chemistry, University of Tromsø, 9037 Tromsø, Norway
| | - Chenyi Wang
- Department of Chemistry, Portland State University, Portland, Oregon 97207-0751, USA
| | - Jeanet Conradie
- Department of Chemistry, University of the Free State, 9300 Bloemfontein, South Africa
| | - Kolle E. Thomas
- Department of Chemistry and Center for Theoretical and Computational Chemistry, University of Tromsø, 9037 Tromsø, Norway
| | - Carl C. Wamser
- Department of Chemistry, Portland State University, Portland, Oregon 97207-0751, USA
| | - Abhik Ghosh
- Department of Chemistry and Center for Theoretical and Computational Chemistry, University of Tromsø, 9037 Tromsø, Norway
| | - Karl M. Kadish
- Department of Chemistry, University of Houston, Houston, Texas 77204-5003, USA
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63
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Ganguly S, Conradie J, Bendix J, Gagnon KJ, McCormick LJ, Ghosh A. Electronic Structure of Cobalt–Corrole–Pyridine Complexes: Noninnocent Five-Coordinate Co(II) Corrole–Radical States. J Phys Chem A 2017; 121:9589-9598. [DOI: 10.1021/acs.jpca.7b09440] [Citation(s) in RCA: 27] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Sumit Ganguly
- Department
of Chemistry, UiT − The Arctic University of Norway, N-9037 Tromsø, Norway
| | - Jeanet Conradie
- Department
of Chemistry, University of the Free State, 9300 Bloemfontein, Republic of South Africa
| | - Jesper Bendix
- Department
of Chemistry, University of Copenhagen, Universitetsparken 5, DK-2100 Copenhagen, Denmark
| | - Kevin J. Gagnon
- Advanced
Light Source, Lawrence Berkeley National Laboratory, Berkeley, California 94720-8229, United States
| | - Laura J. McCormick
- Advanced
Light Source, Lawrence Berkeley National Laboratory, Berkeley, California 94720-8229, United States
| | - Abhik Ghosh
- Department
of Chemistry, UiT − The Arctic University of Norway, N-9037 Tromsø, Norway
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64
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Basumatary B, Rai J, Reddy RVR, Sankar J. Evidence for a [17] π-Electronic Full-Fledged Non-innocent Gallium(III)-Corrole Radical. Chemistry 2017; 23:17458-17462. [PMID: 29044747 DOI: 10.1002/chem.201704457] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/21/2017] [Indexed: 11/10/2022]
Abstract
One-electron oxidation of a GaIII -corrole with N(4-BrC6 H4 )3 SbCl6 resulted in an air-stable non-innocent GaIII -corrole radical. The single-crystal X-ray crystallography of the 2,17-bis-formyl-5,10,15-tris(pentafluorophenyl)corrolato gallium(III)(chloride) radical ([3-Cl]. ) revealed delocalization of the unpaired electron, which was further confirmed by electron spin resonance (ESR) spectroscopy and spin density distribution plot. In addition, the nucleus-independent chemical shift (NICS), anisotropy-induced current density (AICD) and harmonic oscillator model of aromaticity (HOMA) supported a [17] π-electron-conjugated (or antiaromatic) radical.
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Affiliation(s)
- Biju Basumatary
- Department of Chemistry, Indian Institute of Science Education and Research, M.P, Indore bypass road, Bhopal, 462066, India
| | - Jyoti Rai
- Department of Chemistry, Indian Institute of Science Education and Research, M.P, Indore bypass road, Bhopal, 462066, India
| | - R V Ramana Reddy
- Department of Chemistry, Indian Institute of Science Education and Research, M.P, Indore bypass road, Bhopal, 462066, India
| | - Jeyaraman Sankar
- Department of Chemistry, Indian Institute of Science Education and Research, M.P, Indore bypass road, Bhopal, 462066, India
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65
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Ganguly S, Renz D, Giles LJ, Gagnon KJ, McCormick LJ, Conradie J, Sarangi R, Ghosh A. Cobalt- and Rhodium-Corrole-Triphenylphosphine Complexes Revisited: The Question of a Noninnocent Corrole. Inorg Chem 2017; 56:14788-14800. [DOI: 10.1021/acs.inorgchem.7b01828] [Citation(s) in RCA: 36] [Impact Index Per Article: 5.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Sumit Ganguly
- Department of Chemistry, UiT − The Arctic University of Norway, N-9037 Tromsø, Norway
| | - Diemo Renz
- Department of Chemistry, UiT − The Arctic University of Norway, N-9037 Tromsø, Norway
| | - Logan J. Giles
- Structural Molecular Biology, Stanford
Synchrotron Radiation Lightsource, SLAC National Accelerator Laboratory, Menlo Park, California 94306, United States
| | - Kevin J. Gagnon
- Advanced
Light Source, Lawrence Berkeley National Laboratory, Berkeley, California 94720-8229, United States
| | - Laura J. McCormick
- Advanced
Light Source, Lawrence Berkeley National Laboratory, Berkeley, California 94720-8229, United States
| | - Jeanet Conradie
- Department of Chemistry, University of the Free State, 9300 Bloemfontein, Republic of South Africa
| | - Ritimukta Sarangi
- Structural Molecular Biology, Stanford
Synchrotron Radiation Lightsource, SLAC National Accelerator Laboratory, Menlo Park, California 94306, United States
| | - Abhik Ghosh
- Department of Chemistry, UiT − The Arctic University of Norway, N-9037 Tromsø, Norway
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66
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Ganguly S, Giles LJ, Thomas KE, Sarangi R, Ghosh A. Ligand Noninnocence in Iron Corroles: Insights from Optical and X-ray Absorption Spectroscopies and Electrochemical Redox Potentials. Chemistry 2017; 23:15098-15106. [PMID: 28845891 PMCID: PMC5710759 DOI: 10.1002/chem.201702621] [Citation(s) in RCA: 33] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/07/2017] [Indexed: 11/11/2022]
Abstract
Two new series of iron meso-tris(para-X-phenyl)corrole (TpXPC) complexes, Fe[TpXPC]Ph and Fe[TpXPC]Tol, in which X=CF3 , H, Me, and OMe, and Tol=p-methylphenyl (p-tolyl), have been synthesized, allowing a multitechnique electronic-structural comparison with the corresponding FeCl, FeNO, and Fe2 (μ-O) TpXPC derivatives. Optical spectroscopy revealed that the Soret maxima of the FePh and FeTol series are insensitive to the phenyl para substituent, consistent with the presumed innocence of the corrole ligand in these compounds. Accordingly, we may be increasingly confident in the ability of the substituent effect criterion to serve as a probe of corrole noninnocence. Furthermore, four complexes-Fe[TPC]Cl, Fe[TPC](NO), {Fe[TPC]}2 O, and Fe[TPC]Ph-were selected for a detailed XANES investigation of the question of ligand noninnocence. The intensity-weighted average energy (IWAE) positions were found to exhibit rather modest variations (0.8 eV over the series of corroles). The integrated Fe-K pre-edge intensities, on the other hand, vary considerably, with a 2.5 fold increase for Fe[TPC]Ph relative to Fe[TPC]Cl and Fe[TPC](NO). Given the approximately C4v local symmetry of the Fe in all the complexes, the large increase in intensity for Fe[TPC]Ph may be attributed to a higher number of 3d holes, consistent with an expected FeIV -like description, in contrast to Fe[TPC]Cl and Fe[TPC](NO), in which the Fe is thought to be FeIII -like. These results afford strong validation of XANES as a probe of ligand noninnocence in metallocorroles. Electrochemical redox potentials, on the other hand, were found not to afford a simple probe of ligand noninnocence in Fe corroles.
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Affiliation(s)
- Sumit Ganguly
- Department of Chemistry and Center for Theoretical and Computational Chemistry, UiT-, The Arctic University of Norway, 9037, Tromsø, Norway
| | - Logan J Giles
- Structural Molecular Biology, Stanford Synchrotron Radiation Lightsource, SLAC National Accelerator Laboratory, Menlo Park, CA, 94306, USA
| | - Kolle E Thomas
- Department of Chemistry and Center for Theoretical and Computational Chemistry, UiT-, The Arctic University of Norway, 9037, Tromsø, Norway
| | - Ritimukta Sarangi
- Structural Molecular Biology, Stanford Synchrotron Radiation Lightsource, SLAC National Accelerator Laboratory, Menlo Park, CA, 94306, USA
| | - Abhik Ghosh
- Department of Chemistry and Center for Theoretical and Computational Chemistry, UiT-, The Arctic University of Norway, 9037, Tromsø, Norway
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67
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Patra B, Sobottka S, Sinha W, Sarkar B, Kar S. Isovalent AgIII
/AgIII
, AgII
/AgII
, Mixed-Valent AgII
/AgIII
, and Corrolato-Based Mixed-Valency in β,β′-Linked [Bis{corrolato-silver}]
n
Complexes. Chemistry 2017; 23:13858-13863. [DOI: 10.1002/chem.201703512] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/27/2017] [Indexed: 11/06/2022]
Affiliation(s)
- Bratati Patra
- School of Chemical Sciences; National Institute of Science Education and Research (NISER); Bhubaneswar Khordha 752050 India
- Homi Bhabha National Institute; Training School Complex; Anushakti Nagar Mumbai 400 094 India
| | - Sebastian Sobottka
- Institut für Chemie und Biochemie; Anorganische Chemie; Freie Universität Berlin; Fabeckstraße 34-36 14195 Berlin Germany
| | - Woormileela Sinha
- School of Chemical Sciences; National Institute of Science Education and Research (NISER); Bhubaneswar Khordha 752050 India
- Homi Bhabha National Institute; Training School Complex; Anushakti Nagar Mumbai 400 094 India
| | - Biprajit Sarkar
- Institut für Chemie und Biochemie; Anorganische Chemie; Freie Universität Berlin; Fabeckstraße 34-36 14195 Berlin Germany
| | - Sanjib Kar
- School of Chemical Sciences; National Institute of Science Education and Research (NISER); Bhubaneswar Khordha 752050 India
- Homi Bhabha National Institute; Training School Complex; Anushakti Nagar Mumbai 400 094 India
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68
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Yadav P, Sankar M, Ke X, Cong L, Kadish KM. Highly reducible π-extended copper corroles. Dalton Trans 2017; 46:10014-10022. [PMID: 28726883 DOI: 10.1039/c7dt01814b] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/01/2023]
Abstract
Di- and octa-phenylethynyl (PE) substituted π-extended copper corroles were synthesized and characterized as to their structural, electrochemical and spectroscopic properties. The addition of two or eight PE groups to the β-pyrrole positions of the corrole results in dramatic red shifts in the electronic absorption spectra and new reductions which are not seen for the parent compound lacking PE substituents. CuCor(PE)8 is reduced in four reversible one-electron transfer steps to give derivatives of [CuCor(PE)8]n- where n = 1, 2, 3 or 4. Variable temperature 1H NMR and EPR measurements were carried out and suggest that the octa- and di-PE substituted Cu-corroles can both be described as an antiferromagnetically coupled CuII corrole cation radical which is in equilibrium with a triplet state, possibly due to a lower singlet-triplet energy gap as compared to 1 and 2 at room temperature. The EPR spectra of one-electron oxidized and one electron reduced species exhibited the characteristics of Cu(ii) corroles. The products generated in the first two reductions of each π-extended corrole were characterized by thin-layer spectroelectrochemistry, thus providing new insights into how UV-vis spectra of highly reduced corroles vary as a function of the number of PE groups and overall charge on the molecule. The singly reduced and singly oxidized copper corroles were also chemically generated in CH3CN and shown to have UV-visible spectra almost identical to the spectra obtained by electroreduction or electrooxidation in PhCN or THF containing 0.1 M tetrabutylammonium perchlorate.
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Affiliation(s)
- Pinky Yadav
- Department of Chemistry, Indian Institute of Technology Roorkee, Roorkee-247667, India.
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69
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Alemayehu AB, Vazquez-Lima H, Gagnon KJ, Ghosh A. Stepwise Deoxygenation of Nitrite as a Route to Two Families of Ruthenium Corroles: Group 8 Periodic Trends and Relativistic Effects. Inorg Chem 2017; 56:5285-5294. [PMID: 28422487 DOI: 10.1021/acs.inorgchem.7b00377] [Citation(s) in RCA: 24] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/29/2022]
Abstract
Given the many applications of ruthenium porphyrins, the rarity of ruthenium corroles and the underdeveloped state of their chemistry are clearly indicative of an area ripe for significant breakthroughs. The tendency of ruthenium corroles to form unreactive metal-metal-bonded dimers has been recognized as a key impediment in this area. Herein, by exposing free-base meso-tris(p-X-phenyl)corroles, H3[TpXPC] (X = CF3, H, Me, and OMe), and [Ru(COD)Cl2]x in refluxing 2-methoxyethanol to nitrite, we have been able to reliably intercept the series Ru[TpXPC](NO) in a matter of seconds to minutes and subsequently RuVI[TpXPC](N), the products of a second deoxygenation, over some 16 h. Two of the RuVIN complexes and one ruthenium corrole dimer could be crystallographically analyzed; the Ru-Nnitrido distance was found to be ∼1.61 Å, consistent with the triple-bonded character of the RuVIN units and essentially identical with the Os-Nnitrido distance in analogous osmium corroles. Spectroscopic and density functional theory (DFT) calculations suggest that the RuNO corroles are best viewed as innocent {RuNO}6 complexes, whereas the analogous FeNO corroles are noninnocent, i.e., best viewed as {FeNO}7-corrole•2-. Both RuVIN and OsVIN corroles exhibit sharp Soret bands, suggestive of an innocent macrocycle. A key difference between the two metals is that the Soret maxima of the OsVIN corroles are red-shifted some 25 nm relative to those of the RuVIN complexes. Careful time-dependent DFT studies indicate that this difference is largely attributable to relativistic effects in OsVIN corroles. The availability of two new classes of mononuclear ruthenium corroles potentially opens the door to new applications, in such areas as catalysis and cancer therapy.
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Affiliation(s)
- Abraham B Alemayehu
- Department of Chemistry and Center for Theoretical and Computational Chemistry, UiT-The Arctic University of Norway , N-9037 Tromsø, Norway
| | - Hugo Vazquez-Lima
- Department of Chemistry and Center for Theoretical and Computational Chemistry, UiT-The Arctic University of Norway , N-9037 Tromsø, Norway
| | - Kevin J Gagnon
- Advanced Light Source, Lawrence Berkeley National Laboratory , Berkeley, California 94720-8229, United States
| | - Abhik Ghosh
- Department of Chemistry and Center for Theoretical and Computational Chemistry, UiT-The Arctic University of Norway , N-9037 Tromsø, Norway
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70
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Norheim H, Schneider C, Gagnon KJ, Ghosh A. One-Pot Synthesis of a bis-Pocket Corrole through a 14-fold Bromination Reaction. ChemistryOpen 2017; 6:221-225. [PMID: 28413755 PMCID: PMC5390803 DOI: 10.1002/open.201600168] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/16/2016] [Revised: 01/22/2017] [Indexed: 11/08/2022] Open
Abstract
A one-pot protocol, effecting 14-fold bromination with elemental bromine, has afforded copper β-octabromo-meso-tris(2,6-dibromo-3,5-dimethoxyphenyl)corrole, a new bis-pocket metallocorrole. The Cu complex underwent smooth demetalation under reductive conditions, affording the free corrole ligand, which in turn could be readily complexed to MnIII and AuIII. A single-crystal X-ray structure was obtained for the MnIII complex.
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Affiliation(s)
| | | | - Kevin J. Gagnon
- Advanced Light SourceLawrence Berkeley National LaboratoryBerkeleyCA94720-8229USA
| | - Abhik Ghosh
- Department of ChemistryUiT—The Arctic University of Norway9037TromsøNorway
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71
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Ghosh A. Electronic Structure of Corrole Derivatives: Insights from Molecular Structures, Spectroscopy, Electrochemistry, and Quantum Chemical Calculations. Chem Rev 2017; 117:3798-3881. [PMID: 28191934 DOI: 10.1021/acs.chemrev.6b00590] [Citation(s) in RCA: 212] [Impact Index Per Article: 30.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/28/2022]
Abstract
Presented herein is a comprehensive account of the electronic structure of corrole derivatives. Our knowledge in this area derives from a broad range of methods, including UV-vis-NIR absorption and MCD spectroscopies, single-crystal X-ray structure determination, vibrational spectroscopy, NMR and EPR spectroscopies, electrochemistry, X-ray absorption spectroscopy, and quantum chemical calculations, the latter including both density functional theory and ab initio multiconfigurational methods. The review is organized according to the Periodic Table, describing free-base and main-group element corrole derivatives, then transition-metal corroles, and finally f-block element corroles. Like porphyrins, corrole derivatives with a redox-inactive coordinated atom follow the Gouterman four-orbital model. A key difference from porphyrins is the much wider prevalence of noninnocent electronic structures as well as full-fledged corrole•2- radicals among corrole derivatives. The most common orbital pathways mediating ligand noninnocence in transition-metal corroles are the metal(dz2)-corrole("a2u") interaction (most commonly observed in Mn and Fe corroles) and the metal(dx2-y2)-corrole(a2u) interaction in coinage metal corroles. Less commonly encountered is the metal(dπ)-corrole("a1u") interaction, a unique feature of formal d5 metallocorroles. Corrole derivatives exhibit a rich array of optical properties, including substituent-sensitive Soret maxima indicative of ligand noninnocence, strong fluorescence in the case of lighter main-group element complexes, and room-temperature near-IR phosphorescence in the case of several 5d metal complexes. The review concludes with an attempt at identifying gaps in our current knowledge and potential future directions of electronic-structural research on corrole derivatives.
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Affiliation(s)
- Abhik Ghosh
- Department of Chemistry and Center for Theoretical and Computational Chemistry, UiT-The Arctic University of Norway , 9037 Tromsø, Norway
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72
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Ziegler JA, Buckley HL, Arnold J. Synthesis and reactivity of tantalum corrole complexes. Dalton Trans 2017; 46:780-785. [PMID: 27996068 DOI: 10.1039/c6dt04265a] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Reaction of the free base corrole (Mes2(p-OMePh)corrole)H3 with tantalum trialkyl precursors TaMe3Cl2 and TaBn3NtBu resulted in the formation of the tantalum dichloride (1) and tantalum imido (4) corrole complexes via alkane elimination. The X-ray crystal structures of these two compounds have been determined and the structural parameters are discussed. The Ta centre of 1 was found to sit out of the plane of the corrole ring by 0.903 Å and is cis-ligated, similarly to what has been reported for group 4 porphyrin complexes. From complex 1 we synthesized the dimethyl derivative (2), the reactivity of which is compared to an analogous tantalum dimethyl porphyrin cation. The imido complex 4 reacted with triphenylmethanol and 4-methylbenzyl alcohol, resulting in different extents of protonation of the imido group.
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Affiliation(s)
- Jessica A Ziegler
- Department of Chemistry, University of California, Berkeley, California 94720, USA.
| | - Heather L Buckley
- Department of Chemistry, University of California, Berkeley, California 94720, USA.
| | - John Arnold
- Department of Chemistry, University of California, Berkeley, California 94720, USA.
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73
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Affiliation(s)
- Yuanyuan Fang
- School
of Chemistry and Chemical Engineering, Jiangsu University, Zhenjiang 212013, China
| | - Zhongping Ou
- School
of Chemistry and Chemical Engineering, Jiangsu University, Zhenjiang 212013, China
| | - Karl M. Kadish
- Department
of Chemistry, University of Houston, Houston, Texas 77204-5003, United States
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74
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Barata JFB, Neves MGPMS, Faustino MAF, Tomé AC, Cavaleiro JAS. Strategies for Corrole Functionalization. Chem Rev 2016; 117:3192-3253. [PMID: 28222602 DOI: 10.1021/acs.chemrev.6b00476] [Citation(s) in RCA: 149] [Impact Index Per Article: 18.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/30/2023]
Abstract
This review covers the functionalization reactions of meso-arylcorroles, both at the inner core, as well as the peripheral positions of the macrocycle. Experimental details for the synthesis of all known metallocorrole types and for the N-alkylation reactions are presented. Key peripheral functionalization reactions such as halogenation, formylation, carboxylation, nitration, sulfonation, and others are discussed in detail, particularly the nucleophilic aromatic substitution and the participation of corroles in cycloaddition reactions as 2π or 4π components (covering Diels-Alder and 1,3-dipolar cycloadditions). Other functionalizations of corroles include a large diversity of reactions, namely Wittig reactions, reactions with methylene active compounds, formation of amines, amides, and imines, and metal catalyzed reactions. At the final section, the reactions involving oxidation and ring expansion of the corrole macrocycle are described comprehensively.
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Affiliation(s)
- Joana F B Barata
- Department of Chemistry and QOPNA, and ‡Department of Chemistry and CICECO, University of Aveiro , 3810-193 Aveiro, Portugal
| | - M Graça P M S Neves
- Department of Chemistry and QOPNA, and ‡Department of Chemistry and CICECO, University of Aveiro , 3810-193 Aveiro, Portugal
| | - M Amparo F Faustino
- Department of Chemistry and QOPNA, and ‡Department of Chemistry and CICECO, University of Aveiro , 3810-193 Aveiro, Portugal
| | - Augusto C Tomé
- Department of Chemistry and QOPNA, and ‡Department of Chemistry and CICECO, University of Aveiro , 3810-193 Aveiro, Portugal
| | - José A S Cavaleiro
- Department of Chemistry and QOPNA, and ‡Department of Chemistry and CICECO, University of Aveiro , 3810-193 Aveiro, Portugal
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75
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Einrem RF, Braband H, Fox T, Vazquez-Lima H, Alberto R, Ghosh A. Synthesis and Molecular Structure of 99 Tc Corroles. Chemistry 2016; 22:18747-18751. [PMID: 27802367 DOI: 10.1002/chem.201605015] [Citation(s) in RCA: 24] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/27/2016] [Indexed: 01/15/2023]
Abstract
The first 99 Tc corroles have been synthesized and fully characterized. A single-crystal X-ray structure of a 99 TcO triarylcorrole revealed nearly identical geometry parameters as the corresponding ReO structure. A significant spectral shift between the Soret maxima of TcO (410-413 nm) and ReO (438-441 nm) corroles was observed and, based on two-component spin-orbit ZORA TDDFT calculations, ascribed to relativistic effects in the Re case. The syntheses reported herein potentially pave the way toward 99m Tc-porphyrinoid-based radiopharmaceuticals.
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Affiliation(s)
- Rune F Einrem
- Department of Chemistry, UiT-The Arctic University of Norway, 9037, Tromsø, Norway
| | - Henrik Braband
- Department of Chemistry, University of Zurich, Winterthurerstrasse 190, 8057, Zürich, Switzerland
| | - Thomas Fox
- Department of Chemistry, University of Zurich, Winterthurerstrasse 190, 8057, Zürich, Switzerland
| | - Hugo Vazquez-Lima
- Department of Chemistry, UiT-The Arctic University of Norway, 9037, Tromsø, Norway
| | - Roger Alberto
- Department of Chemistry, University of Zurich, Winterthurerstrasse 190, 8057, Zürich, Switzerland
| | - Abhik Ghosh
- Department of Chemistry, UiT-The Arctic University of Norway, 9037, Tromsø, Norway
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76
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Ye L, Ou Z, Fang Y, Song Y, Li B, Liu R, Kadish KM. Effect of NO2 substitution and solvent on UV-visible spectra, redox potentials and electron transfer mechanisms of copper β-nitrotriarylcorroles. Proposed electrogeneration of a Cu(I) oxidation state. J PORPHYR PHTHALOCYA 2016. [DOI: 10.1142/s1088424616500899] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022]
Abstract
Three copper triarylcorroles containing a [Formula: see text]-pyrrole nitro substituent were synthesized and characterized as to their spectral and electrochemical properties in nonaqueous media. The examined compounds are represented as [Formula: see text]-NO2(YPh)3CorCu, where Cor is the trianion of a triphenylcorrole and Y is a Cl, H or CH3 substituent at the para-position of the three meso-phenyl rings of the compound. The data from absorption spectra, electrochemistry and thin-layer spectroelectrochemistry are consistent with an initial assignment of Cu[Formula: see text]-Cor[Formula: see text] in CH2Cl2, DMF and pyridine and electrogeneration of a formal Cu(II) corrole with an unreduced macrocycle, represented as Cu[Formula: see text]-Cor[Formula: see text], after the first one-electron reduction in these solvents. The doubly reduced [Formula: see text]-nitrocorrole has a sharp Soret band at 439 nm and a well-defined Q-band at 611 nm in CH2Cl2. Similar absorption spectra are seen for the three examined doubly reduced nitrocorroles in DMF and pyridine, suggesting formation of a Cu(I) species with an unreduced macrocycle which is represented as Cu[Formula: see text]-Cor[Formula: see text]. Changes in redox potentials and absorption spectra of the nitrocorroles are examined as a function of solvent and substituents on the meso-phenyl rings of the compounds and comparisons are made between spectral and electrochemical data of the newly synthesized corroles and that of structurally related tetraarylcorroles lacking a [Formula: see text]-nitro group.
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Affiliation(s)
- Lina Ye
- College of Computer, Jilin Normal University, Siping 136000, China
- School of Chemistry and Chemical Engineering, Jiangsu University, Zhenjiang 212013, China
| | - Zhongping Ou
- School of Chemistry and Chemical Engineering, Jiangsu University, Zhenjiang 212013, China
| | - Yuanyuan Fang
- School of Chemistry and Chemical Engineering, Jiangsu University, Zhenjiang 212013, China
| | - Yang Song
- Department of Chemistry, University of Houston, Houston, TX 77204-5003, USA
| | - Bihong Li
- School of Chemistry and Chemical Engineering, Jiangsu University, Zhenjiang 212013, China
| | - Rui Liu
- 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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77
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Capar J, Zonneveld J, Berg S, Isaksson J, Gagnon KJ, Thomas KE, Ghosh A. Demetalation of copper undecaarylcorroles: Molecular structures of a free-base undecaarylisocorrole and a gold undecaarylcorrole. J Inorg Biochem 2016; 162:146-153. [PMID: 27394061 DOI: 10.1016/j.jinorgbio.2016.06.026] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/11/2016] [Revised: 05/22/2016] [Accepted: 06/23/2016] [Indexed: 10/21/2022]
Affiliation(s)
- Jan Capar
- Department of Chemistry and Center for Theoretical and Computational Chemistry, University of Tromsø, N-9037 Tromsø, Norway
| | - Job Zonneveld
- Department of Chemistry and Center for Theoretical and Computational Chemistry, University of Tromsø, N-9037 Tromsø, Norway
| | - Steffen Berg
- Department of Chemistry and Center for Theoretical and Computational Chemistry, University of Tromsø, N-9037 Tromsø, Norway
| | - Johan Isaksson
- Department of Chemistry and Center for Theoretical and Computational Chemistry, University of Tromsø, N-9037 Tromsø, Norway
| | - Kevin J Gagnon
- Advanced Light Source, Lawrence Berkeley National Laboratory, Berkeley, CA 94720-8229, USA
| | - Kolle E Thomas
- Department of Chemistry and Center for Theoretical and Computational Chemistry, University of Tromsø, N-9037 Tromsø, Norway.
| | - Abhik Ghosh
- Department of Chemistry and Center for Theoretical and Computational Chemistry, University of Tromsø, N-9037 Tromsø, Norway.
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78
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Sarangi R, Giles LJ, Thomas KE, Ghosh A. Ligand Noninnocence in Silver Corroles: A XANES Investigation. Eur J Inorg Chem 2016. [DOI: 10.1002/ejic.201600413] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Affiliation(s)
- Ritimukta Sarangi
- Structural Molecular Biology; Stanford Synchrotron Radiation Lightsource; SLAC National Accelerator Laboratory; Menlo Park 94306 CA USA
| | - Logan J. Giles
- Structural Molecular Biology; Stanford Synchrotron Radiation Lightsource; SLAC National Accelerator Laboratory; Menlo Park 94306 CA USA
| | - Kolle E. Thomas
- Department of Chemistry and Center for Theoretical and Computational Chemistry; UiT - The Arctic University of Norway; 9037 Tromsø Norway
| | - Abhik Ghosh
- Department of Chemistry and Center for Theoretical and Computational Chemistry; UiT - The Arctic University of Norway; 9037 Tromsø Norway
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79
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Lemon CM, Huynh M, Maher AG, Anderson BL, Bloch ED, Powers DC, Nocera DG. Electronic Structure of Copper Corroles. Angew Chem Int Ed Engl 2016; 55:2176-80. [DOI: 10.1002/anie.201509099] [Citation(s) in RCA: 59] [Impact Index Per Article: 7.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/30/2015] [Revised: 11/10/2015] [Indexed: 11/06/2022]
Affiliation(s)
- Christopher M. Lemon
- Department of Chemistry and Chemical Biology Harvard University 12 Oxford Street Cambridge MA 02138 USA
| | - Michael Huynh
- Department of Chemistry and Chemical Biology Harvard University 12 Oxford Street Cambridge MA 02138 USA
| | - Andrew G. Maher
- Department of Chemistry and Chemical Biology Harvard University 12 Oxford Street Cambridge MA 02138 USA
| | - Bryce L. Anderson
- Department of Chemistry and Chemical Biology Harvard University 12 Oxford Street Cambridge MA 02138 USA
| | - Eric D. Bloch
- Department of Chemistry and Chemical Biology Harvard University 12 Oxford Street Cambridge MA 02138 USA
| | - David C. Powers
- Department of Chemistry Texas A&M University College Station TX 77843-3255 USA
| | - Daniel G. Nocera
- Department of Chemistry and Chemical Biology Harvard University 12 Oxford Street Cambridge MA 02138 USA
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80
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Lemon CM, Huynh M, Maher AG, Anderson BL, Bloch ED, Powers DC, Nocera DG. Electronic Structure of Copper Corroles. Angew Chem Int Ed Engl 2016. [DOI: 10.1002/ange.201509099] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Affiliation(s)
- Christopher M. Lemon
- Department of Chemistry and Chemical Biology Harvard University 12 Oxford Street Cambridge MA 02138 USA
| | - Michael Huynh
- Department of Chemistry and Chemical Biology Harvard University 12 Oxford Street Cambridge MA 02138 USA
| | - Andrew G. Maher
- Department of Chemistry and Chemical Biology Harvard University 12 Oxford Street Cambridge MA 02138 USA
| | - Bryce L. Anderson
- Department of Chemistry and Chemical Biology Harvard University 12 Oxford Street Cambridge MA 02138 USA
| | - Eric D. Bloch
- Department of Chemistry and Chemical Biology Harvard University 12 Oxford Street Cambridge MA 02138 USA
| | - David C. Powers
- Department of Chemistry Texas A&M University College Station TX 77843-3255 USA
| | - Daniel G. Nocera
- Department of Chemistry and Chemical Biology Harvard University 12 Oxford Street Cambridge MA 02138 USA
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81
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Norheim HK, Capar J, Einrem RF, Gagnon KJ, Beavers CM, Vazquez-Lima H, Ghosh A. Ligand noninnocence in FeNO corroles: insights from β-octabromocorrole complexes. Dalton Trans 2016; 45:681-9. [DOI: 10.1039/c5dt03947a] [Citation(s) in RCA: 30] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
With a noninnocent {FeNO}7-(corrole˙2−) formulation, the first FeNO octabromocorrole derivatives deepen our appreciation of ligand noninnocence.
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Affiliation(s)
- Hans-Kristian Norheim
- Department of Chemistry and Center for Theoretical and Computational Chemistry
- UiT – The Arctic University of Norway
- 9037 Tromsø
- Norway
| | - Jan Capar
- Department of Chemistry and Center for Theoretical and Computational Chemistry
- UiT – The Arctic University of Norway
- 9037 Tromsø
- Norway
| | - Rune F. Einrem
- Department of Chemistry and Center for Theoretical and Computational Chemistry
- UiT – The Arctic University of Norway
- 9037 Tromsø
- Norway
| | - Kevin J. Gagnon
- Advanced Light Source
- Lawrence Berkeley National Laboratory
- Berkeley
- USA
| | | | - Hugo Vazquez-Lima
- Department of Chemistry and Center for Theoretical and Computational Chemistry
- UiT – The Arctic University of Norway
- 9037 Tromsø
- Norway
| | - Abhik Ghosh
- Department of Chemistry and Center for Theoretical and Computational Chemistry
- UiT – The Arctic University of Norway
- 9037 Tromsø
- Norway
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82
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Einrem RF, Gagnon KJ, Alemayehu AB, Ghosh A. Metal-Ligand Misfits: Facile Access to Rhenium-Oxo Corroles by Oxidative Metalation. Chemistry 2015; 22:517-20. [PMID: 26639951 DOI: 10.1002/chem.201504307] [Citation(s) in RCA: 55] [Impact Index Per Article: 6.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/27/2015] [Indexed: 11/08/2022]
Abstract
With the exception of a single accidental synthesis, rhenium corroles are unknown, but of great interest as catalysts and potential radiopharmaceuticals. Oxidative metalation of meso-triarylcorroles with [Re2 (CO)10 ] in refluxing decalin has provided a facile and relatively high-yielding route to rhenium(V)-oxo corroles. The complexes synthesized could all be fully characterized by single-crystal X-ray structure analyses.
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Affiliation(s)
- Rune F Einrem
- Department of Chemistry, UiT - The Arctic University of Norway, 9037 Tromsø (Norway)
| | - Kevin J Gagnon
- Advanced Light Source, Lawrence Berkeley National Laboratory, Berkeley, CA 94720-8229 (USA)
| | - Abraham B Alemayehu
- Department of Chemistry, UiT - The Arctic University of Norway, 9037 Tromsø (Norway).
| | - Abhik Ghosh
- Department of Chemistry, UiT - The Arctic University of Norway, 9037 Tromsø (Norway).
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