1
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Yadav I, Sankar M. Panchromatic and Perturbed Absorption Spectral Features and Multiredox Properties of Dicyanovinyl- and Dicyanobutadienyl-Appended Cobalt Corroles. Inorg Chem 2023. [PMID: 38010211 DOI: 10.1021/acs.inorgchem.3c02666] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2023]
Abstract
Four new β-functionalized π-extended cobalt corroles with one and two dicyanovinyl (DCV) or dicyanobutadienyl (DCBD) moieties at the 3- and 3,17-positions have been synthesized and characterized by various spectroscopic techniques. Interestingly, the synthesized DCV- and DCBD-appended cobalt corroles displayed panchromatic and near-infrared absorption in the range 300-1100 nm in CH2Cl2 and pyridine solvents. (MN)2-(Cor)Co and A2MN2-(Cor)Co exhibited 8-9 times enhancement in the molar absorptivity of the Q band compared to the parent corrole ((Cor)Co). The unique absorption spectral features of these β-functionalized cobalt corroles are splitting, broadening, and red-shifting in the Soret and Q bands. One DCV unit brings a 30-46 nm red shift, whereas one DCBD unit brings a 40-75 nm red shift in the Q band compared to the corresponding precursors. This is rare that the intensity of the longest Q band is greater than or equal to the Soret-like bands. These corrole derivatives exhibit UV-vis spectral features similar to those of chlorophyll a. A 220 mV positive shift per DCV group and 160 mV positive shift per DCBD group were observed in the first oxidation potentials compared to (Cor)Co in the desired direction for the utility of these cobalt complexes in electrocatalysis. DFT studies revealed that HOMO and LUMO were stabilized after appending DCV and DCBD groups on the corrole macrocycle and exhibited a "push-pull" behavior leading to promising material applications in nonlinear optics (NLO) and catalysis.
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Affiliation(s)
- Inderpal Yadav
- Department of Chemistry, Indian Institute of Technology Roorkee, Roorkee 247667, India
| | - Muniappan Sankar
- Department of Chemistry, Indian Institute of Technology Roorkee, Roorkee 247667, India
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2
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Lemon CM. Diversifying the functions of heme proteins with non-porphyrin cofactors. J Inorg Biochem 2023; 246:112282. [PMID: 37320889 DOI: 10.1016/j.jinorgbio.2023.112282] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/30/2023] [Revised: 05/09/2023] [Accepted: 05/30/2023] [Indexed: 06/17/2023]
Abstract
Heme proteins perform diverse biochemical functions using a single iron porphyrin cofactor. This versatility makes them attractive platforms for the development of new functional proteins. While directed evolution and metal substitution have expanded the properties, reactivity, and applications of heme proteins, the incorporation of porphyrin analogs remains an underexplored approach. This review discusses the replacement of heme with non-porphyrin cofactors, such as porphycene, corrole, tetradehydrocorrin, phthalocyanine, and salophen, and the attendant properties of these conjugates. While structurally similar, each ligand exhibits distinct optical and redox properties, as well as unique chemical reactivity. These hybrids serve as model systems to elucidate the effects of the protein environment on the electronic structure, redox potentials, optical properties, or other features of the porphyrin analog. Protein encapsulation can confer distinct chemical reactivity or selectivity of artificial metalloenzymes that cannot be achieved with the small molecule catalyst alone. Additionally, these conjugates can interfere with heme acquisition and uptake in pathogenic bacteria, providing an inroad to innovative antibiotic strategies. Together, these examples illustrate the diverse functionality that can be achieved by cofactor substitution. The further expansion of this approach will access unexplored chemical space, enabling the development of superior catalysts and the creation of heme proteins with emergent properties.
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Affiliation(s)
- Christopher M Lemon
- Department of Chemistry and Biochemistry, Montana State University, PO Box 173400, Bozeman, MT 59717, United States.
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3
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Yadav I, Osterloh WR, Kadish KM, Sankar M. Synthesis, Spectral, Redox, and Sensing Studies of β-Dicyanovinyl-Appended Corroles and Their Metal Complexes. Inorg Chem 2023; 62:7738-7752. [PMID: 37146287 DOI: 10.1021/acs.inorgchem.3c00341] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 05/07/2023]
Abstract
A new family of β-dicyanovinyl (DCV)-appended corroles represented as MTPC(MN) (where M = 3H, Cu, Ag, and Co(PPh3) and MN = malononitrile and TPC = 5,10,15-triphenylcorrole) were synthesized starting from the free base mono β-formyl corrole, H3TPC(CHO), and characterized along with their respective MTPC(CHO) and MTPC complexes as to their spectroscopic and electrochemical properties in nonaqueous media. Comparisons between the two series of corroles demonstrate a pronounced substituent effect of the β-DCV group on the physicochemical properties making the MTPC(MN) derivatives substantially easier to reduce and more difficult to oxidize than the formyl or unsubstituted corroles. In addition, the colorimetric and spectral detection of 11 different anions (X) in the form of tetrabutylammonium salts (TBAX, X = PF6-, OAc-, H2PO4-, CN-, HSO4-, NO3-, ClO4-, F-, Cl-, Br-, and I-) were also investigated in nonaqueous media. Of the investigated anions, only CN- was found to induce changes in the UV-vis and 1H NMR spectra of the β-DCV metallocorroles. This data revealed that CuTPC(MN) and AgTPC(MN) act as chemodosimeters for selective cyanide ion detection via a nucleophilic attack at the vinylic carbon of the DCV substituent, while (PPh3)CoTPC(MN) acts as a chemosensor for cyanide ion sensing via axial coordination to the cobalt metal center. A low-limit detection of cyanide ions was observed at 1.69 ppm for CuTPC(MN) and 1.17 ppm for AgTPC(MN) in toluene.
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Affiliation(s)
- Inderpal Yadav
- Department of Chemistry, Indian Institute of Technology Roorkee, Roorkee 247667, India
| | - W Ryan Osterloh
- Department of Chemistry, University of Houston, Houston, Texas 77204-5003, United States
| | - Karl M Kadish
- Department of Chemistry, University of Houston, Houston, Texas 77204-5003, United States
| | - Muniappan Sankar
- Department of Chemistry, Indian Institute of Technology Roorkee, Roorkee 247667, India
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4
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Desbois N, Osterloh WR, Sabat D, Monot C, Brandès S, Meyer M, Chaar C, Hespel L, Lebrun L, Baati R, Estour F, Gros CP. Cobalt tris(4-vinylphenyl)corrole: out of the frying pan into the polymer. Chem Commun (Camb) 2023; 59:2098-2101. [PMID: 36723238 DOI: 10.1039/d2cc06872a] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/19/2023]
Abstract
A novel cobalt corrole bearing 4-vinylphenyl groups at the 5,10,15-meso-positions of the macrocycle has been synthesized from tris(4-bromophenyl)corrole using a Suzuki coupling reaction. The spectral and electrochemical properties are reported in CH2Cl2 along with its ability to form a highly stable six-coordinate complex and cross-linked corrole-based polymer in a 59% yield.
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Affiliation(s)
- Nicolas Desbois
- Université Bourgogne Franche-Comté, ICMUB UMR CNRS 6302, Dijon, Cedex, 21078, France.
| | - W Ryan Osterloh
- Université Bourgogne Franche-Comté, ICMUB UMR CNRS 6302, Dijon, Cedex, 21078, France.
| | - Dimitri Sabat
- Université Bourgogne Franche-Comté, ICMUB UMR CNRS 6302, Dijon, Cedex, 21078, France.
| | - Camille Monot
- Université Bourgogne Franche-Comté, ICMUB UMR CNRS 6302, Dijon, Cedex, 21078, France.
| | - Stéphane Brandès
- Université Bourgogne Franche-Comté, ICMUB UMR CNRS 6302, Dijon, Cedex, 21078, France.
| | - Michel Meyer
- Université Bourgogne Franche-Comté, ICMUB UMR CNRS 6302, Dijon, Cedex, 21078, France.
| | - Capucine Chaar
- Normandie Univ., UNIROUEN, INSA Rouen, CNRS, COBRA UMR 6014, 76000, Rouen, France.
| | - Louise Hespel
- Normandie Univ., UNIROUEN, INSA Rouen, CNRS, PBS, 76000, Rouen, France
| | - Laurent Lebrun
- Normandie Univ., UNIROUEN, INSA Rouen, CNRS, PBS, 76000, Rouen, France
| | - Rachid Baati
- Université de Strasbourg, ICPEES, UMR CNRS 7515, 67087, Strasbourg, France
| | - François Estour
- Normandie Univ., UNIROUEN, INSA Rouen, CNRS, COBRA UMR 6014, 76000, Rouen, France.
| | - Claude P Gros
- Université Bourgogne Franche-Comté, ICMUB UMR CNRS 6302, Dijon, Cedex, 21078, France.
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5
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Osterloh WR, Desbois N, Gros CP, Kadish KM. Hypercorroles Formed via the Tail that Wagged the Dog: Charge Transfer Interactions from Innocent Corroles to Meso-Nitrophenyl Substituents. Inorg Chem 2022; 61:20576-20586. [DOI: 10.1021/acs.inorgchem.2c03425] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Affiliation(s)
- W. Ryan Osterloh
- ICMUB, UMR CNRS 6302, Université Bourgogne Franche-Comte, BP 47870, 21078 Dijon Cedex, France
- Department of Chemistry, University of Houston, Houston, Texas 77204-5003, United States
| | - Nicolas Desbois
- ICMUB, UMR CNRS 6302, Université Bourgogne Franche-Comte, BP 47870, 21078 Dijon Cedex, France
| | - Claude P. Gros
- ICMUB, UMR CNRS 6302, Université Bourgogne Franche-Comte, BP 47870, 21078 Dijon Cedex, France
| | - Karl M. Kadish
- Department of Chemistry, University of Houston, Houston, Texas 77204-5003, United States
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6
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Lemon CM, Maher AG, Anderson BL, Bloch ED, Huynh M, McCollar AL, Nocera DG. Solvent-Induced Spin-State Change in Copper Corroles. Inorg Chem 2022; 61:20288-20298. [DOI: 10.1021/acs.inorgchem.2c02678] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/03/2022]
Affiliation(s)
- Christopher M. Lemon
- Department of Chemistry and Chemical Biology, Harvard University, 12 Oxford Street, Cambridge, Massachusetts02138, United States
- Department of Chemistry & Biochemistry, Montana State University, P.O. Box 173400, Bozeman, Montana59717, United States
| | - Andrew G. Maher
- Department of Chemistry and Chemical Biology, Harvard University, 12 Oxford Street, Cambridge, Massachusetts02138, United States
| | - Bryce L. Anderson
- Department of Chemistry and Chemical Biology, Harvard University, 12 Oxford Street, Cambridge, Massachusetts02138, United States
| | - Eric D. Bloch
- Department of Chemistry and Chemical Biology, Harvard University, 12 Oxford Street, Cambridge, Massachusetts02138, United States
| | - Michael Huynh
- Department of Chemistry and Chemical Biology, Harvard University, 12 Oxford Street, Cambridge, Massachusetts02138, United States
| | - Abie L. McCollar
- Department of Chemistry & Biochemistry, Montana State University, P.O. Box 173400, Bozeman, Montana59717, United States
| | - Daniel G. Nocera
- Department of Chemistry and Chemical Biology, Harvard University, 12 Oxford Street, Cambridge, Massachusetts02138, United States
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7
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Abstract
The Gouterman four-orbital model conceptualizes porphyrin UV-visible spectra as dominated by four frontier molecular orbitals-two nearly degenerate HOMOs and two exactly degenerate LUMOS under D 4h symmetry. These are well separated from all the other molecular orbitals, and normal spectra involve transitions among these MOs. Unusual spectra occur when additional orbitals appear in this energy range, typically as a consequence of the central coordinated atom. For example, metals with empty d orbitals in a suitable energy range may lead to charge transfer from porphyrin (ligand) to metal, that is, so-called LMCT transitions. Metals with filled p or d orbitals may lead to charge transfer from metal to porphyrin, MLCT transitions. These cases lead to additional peaks and/or significant redshifts in the spectra and were classified as hyperporphyrins by Gouterman. Cases in which spectra are blueshifted were classified as hypsoporphyrins; they are common for relatively electronegative late transition metal porphyrins. Many of the same principles apply to porphyrin analogues, especially corroles. In this Perspective, we focus on two newer classes of hyperporphyrins: one reflecting substituent effects in protonated or deprotonated free-base tetraphenyporphyrins and the other reflecting "noninnocent" interactions between central metal ions and corroles. Hyperporphyrin effects on spectra can be dramatic, yet they can be generated by relatively simple changes and subtle structural variations, such as acid-base reactions or the selection of a central metal ion. These concepts suggest strategies for engineering porphyrin or porphyrinoid dyes for specific applications, especially those requiring far-red or near-infrared absorption or emission.
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Affiliation(s)
- Carl C. Wamser
- Department
of Chemistry, Portland State University, Portland, Oregon 97207-0751, United States
| | - Abhik Ghosh
- Department
of Chemistry and Arctic Center for Sustainable Energy, UiT − The Arctic University of Norway, N-9037 Tromsø, Norway
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8
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Vaillard VA, Nieres PD, Vaillard SE, Doctorovich F, Sarkar B, Neuman NI. Cobalt, Iron, and Manganese Metallocorroles in Catalytic Oxidation of Water. An Overview of the Synthesis, Selected Redox and Electronic Properties, and Catalytic Activities. Eur J Inorg Chem 2022. [DOI: 10.1002/ejic.202100767] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Affiliation(s)
- Victoria A. Vaillard
- Instituto de Desarrollo Tecnológico para la Industria Química INTEC UNL-CONICET Predio CONICET Santa Fe Dr. Alberto Cassano Ruta Nacional N° 168, Km 0 Paraje El Pozo S3000ZAA Santa Fe Argentina
| | - Pablo D. Nieres
- Instituto de Desarrollo Tecnológico para la Industria Química INTEC UNL-CONICET Predio CONICET Santa Fe Dr. Alberto Cassano Ruta Nacional N° 168, Km 0 Paraje El Pozo S3000ZAA Santa Fe Argentina
| | - Santiago E. Vaillard
- Instituto de Desarrollo Tecnológico para la Industria Química INTEC UNL-CONICET Predio CONICET Santa Fe Dr. Alberto Cassano Ruta Nacional N° 168, Km 0 Paraje El Pozo S3000ZAA Santa Fe Argentina
| | - Fabio Doctorovich
- Departamento de Química Inorgánica, Analítica y Química Física/INQUIMAE-CONICET Facultad de Ciencias Exactas y Naturales Universidad de Buenos Aires Ciudad Universitaria, Pabellón II Buenos Aires C1428EHA Argentina
| | - Biprajit Sarkar
- Institut für Anorganische Chemie Universität Stuttgart Pfaffenwaldring 55 70569 Stuttgart Germany
| | - Nicolás I. Neuman
- Instituto de Desarrollo Tecnológico para la Industria Química INTEC UNL-CONICET Predio CONICET Santa Fe Dr. Alberto Cassano Ruta Nacional N° 168, Km 0 Paraje El Pozo S3000ZAA Santa Fe Argentina
- Institut für Anorganische Chemie Universität Stuttgart Pfaffenwaldring 55 70569 Stuttgart Germany
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9
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Phung QM, Muchammad Y, Yanai T, Ghosh A. A DMRG/CASPT2 Investigation of Metallocorroles: Quantifying Ligand Noninnocence in Archetypal 3d and 4d Element Derivatives. JACS AU 2021; 1:2303-2314. [PMID: 34984418 PMCID: PMC8717376 DOI: 10.1021/jacsau.1c00417] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/22/2021] [Indexed: 05/03/2023]
Abstract
Hybrid density functional theory (B3LYP) and density matrix renormalization group (DMRG) theory have been used to quantitatively compare the degree of ligand noninnocence (corrole radical character) in seven archetypal metallocorroles. The seven complexes, in decreasing order of corrole noninnocent character, are Mn[Cor]Cl > Fe[Cor]Cl > Fe[Cor](NO) > Mo[Cor]Cl2 > Ru[Cor](NO) ≈ Mn[Cor]Ph ≈ Fe[Cor]Ph ≈ 0, where [Cor] refers to the unsubstituted corrolato ligand. DMRG-based second-order perturbation theory calculations have also yielded detailed excited-state energetics data on the compounds, shedding light on periodic trends involving middle transition elements. Thus, whereas the ground state of Fe[Cor](NO) (S = 0) is best described as a locally S = 1/2 {FeNO}7 unit antiferromagnetically coupled to a corrole A' radical, the calculations confirm that Ru[Cor](NO) may be described as simply {RuNO}6-Cor3-, that is, having an innocent corrole macrocycle. Furthermore, whereas the ferromagnetically coupled S = 1{FeNO}7-Cor•2- state of Fe[Cor](NO) is only ∼17.5 kcal/mol higher than the S = 0 ground state, the analogous triplet state of Ru[Cor](NO) is higher by a far larger margin (37.4 kcal/mol) relative to the ground state. In the same vein, Mo[Cor]Cl2 exhibits an adiabatic doublet-quartet gap of 36.1 kcal/mol. The large energy gaps associated with metal-ligand spin coupling in Ru[Cor](NO) and Mo[Cor]Cl2 reflect the much greater covalent character of 4d-π interactions relative to analogous interactions involving 3d orbitals. As far as excited-state energetics is concerned, DMRG-CASPT2 calculations provide moderate validation for hybrid density functional theory (B3LYP) for qualitative purposes, but underscore the possibility of large errors (>10 kcal/mol) in interstate energy differences.
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Affiliation(s)
- Quan Manh Phung
- Department
of Chemistry, Graduate School of Science, Nagoya University, Furo-cho, Chikusa-ku, Nagoya, Aichi 464-8602, Japan
- Institute
of Transformative Bio-Molecules (WPI-ITbM), Nagoya University, Furo-cho, Chikusa-ku, Nagoya, Aichi 464-8602, Japan
| | - Yasin Muchammad
- Department
of Chemistry, Graduate School of Science, Nagoya University, Furo-cho, Chikusa-ku, Nagoya, Aichi 464-8602, Japan
| | - Takeshi Yanai
- Department
of Chemistry, Graduate School of Science, Nagoya University, Furo-cho, Chikusa-ku, Nagoya, Aichi 464-8602, Japan
- Institute
of Transformative Bio-Molecules (WPI-ITbM), Nagoya University, Furo-cho, Chikusa-ku, Nagoya, Aichi 464-8602, Japan
| | - Abhik Ghosh
- Department
of Chemistry, UiT-The Arctic University
of Norway, N-9037 Tromsø, Norway
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10
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Ryan Osterloh W, Fang Y, Desbois N, Naitana ML, Brandès S, Pacquelet S, Gros CP, Kadish KM. Here’s looking at the reduction of noninnocent copper corroles via anion induced electron transfer. CR CHIM 2021. [DOI: 10.5802/crchim.95] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/17/2023]
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11
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Kurtz DA, Zhang J, Sookezian A, Kallick J, Hill MG, Hunter BM. A Cobalt Phosphine Complex in Five Oxidation States. Inorg Chem 2021; 60:17445-17449. [PMID: 34813328 DOI: 10.1021/acs.inorgchem.1c03020] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
Here we report electrochemical, spectroscopic, and crystallographic characterization of a redox series of cobalt complexes in five sequential oxidation states. A simple bidentate phosphine ligand, cis-1,2-bis(diphenylphosphino)ethylene (dppv), allows for isolation of the 3+, 2+, 1+, 0, and 1- oxidation states of cobalt─the only known example of transition-metal complexes with redox-innocent ligands in five oxidation states. Electrochemistry of [Co(dppv)2]2+ reveals three reversible reductions and one reversible oxidation. Complexes in each oxidation state are characterized using single-crystal X-ray diffraction. The coordination number and geometry of the complex changes as a function of the oxidation state: including acetonitrile ligands, the Co3+ complex is pseudo-octahedral, the Co2+ complex is square-pyramidal, the Co+ complex is pseudo-square-planar, and the Co0 and Co- complexes approach pseudo-tetrahedral, illustrating structures predicted by crystal-field theory of inorganic transition-metal complexes.
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Affiliation(s)
- Daniel A Kurtz
- Rowland Institute at Harvard University, Cambridge, Massachusetts 02142, United States
| | - Jibo Zhang
- Rowland Institute at Harvard University, Cambridge, Massachusetts 02142, United States
| | - Arvin Sookezian
- Department of Chemistry, Occidental College, Los Angeles, California 90041, United States
| | - Jeremy Kallick
- Department of Chemistry, Occidental College, Los Angeles, California 90041, United States
| | - Michael G Hill
- Department of Chemistry, Occidental College, Los Angeles, California 90041, United States
| | - Bryan M Hunter
- Rowland Institute at Harvard University, Cambridge, Massachusetts 02142, United States
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12
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Synthesis, structural characterization and binding ability of A2B cobalt(III) corroles with pyridine. Inorganica Chim Acta 2021. [DOI: 10.1016/j.ica.2021.120580] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
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13
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Vazquez-Lima H, Conradie J, Johansen MAL, Martinsen SR, Alemayehu AB, Ghosh A. Heavy-element-ligand covalence: ligand noninnocence in molybdenum and tungsten Viking-helmet Corroles. Dalton Trans 2021; 50:12843-12849. [PMID: 34473174 DOI: 10.1039/d1dt01970h] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/28/2023]
Abstract
Extensive DFT calculations with several exchange-correlation functionals indicate that molybdenum-dichlorido Viking helmet corroles are noninnocent with significant MoIV-corrole˙2- character. The effect is mediated by a Mo(4d)-corrole(π) orbital interaction similar to that postulated for MnCl, FeCl and FeNO corroles. The effect also appears to operate in tungsten-dichlorido corroles but is weaker relative to that for Mo. In contrast, MoO triarylcorroles do not exhibit a significant degree of corrole radical character. Furthermore, the Soret absorption maxima of a series of MoCl2 tris(para-X-phenyl)corrole derivatives were found to redshift dramatically with increasing electron-donating character of the para substituent X, essentially clinching the case for a noninnocent macrocycle in MoCl2 corroles.
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Affiliation(s)
- Hugo Vazquez-Lima
- Department of Chemistry, UiT - The Arctic University of Norway, N-9037 Tromsø, Norway. .,Centro de Química, Instituto de Ciencias, Universidad Autónoma de Puebla, Edif. IC9, CU, San Manuel, 72570 Puebla, Puebla, Mexico
| | - Jeanet Conradie
- Department of Chemistry, UiT - The Arctic University of Norway, N-9037 Tromsø, Norway. .,Department of Chemistry, University of the Free State, P.O. Box 339, Bloemfontein, 9300, South Africa
| | - Martin A L Johansen
- Department of Chemistry, UiT - The Arctic University of Norway, N-9037 Tromsø, Norway.
| | | | - Abraham B Alemayehu
- Department of Chemistry, UiT - The Arctic University of Norway, N-9037 Tromsø, Norway.
| | - Abhik Ghosh
- Department of Chemistry, UiT - The Arctic University of Norway, N-9037 Tromsø, Norway.
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14
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Matson BD, Thomas KE, Alemayehu AB, Ghosh A, Sarangi R. X-ray absorption spectroscopy of exemplary platinum porphyrin and corrole derivatives: metal- versus ligand-centered oxidation. RSC Adv 2021; 11:32269-32274. [PMID: 35495496 PMCID: PMC9041989 DOI: 10.1039/d1ra06151h] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/14/2021] [Revised: 10/11/2021] [Accepted: 09/23/2021] [Indexed: 11/23/2022] Open
Abstract
A combination of Pt L3-edge X-ray absorption spectroscopy (EXAFS and XANES) and DFT (TPSS) calculations have been performed on powder samples of the archetypal platinum porphyrinoid complexes PtII[TpCF3PP], PtIV[TpCF3PP]Cl2, and PtIV[TpCF3PC](Ar)(py), where TpCF3PP2- = meso-tetrakis(p-trifluoromethylphenyl)porphyrinato and TpCF3PC3- = meso-tris(p-trifluoromethylphenyl)corrolato. The three complexes yielded Pt L3-edge energies of 11 566.0 eV, 11 567.2 eV, and 11 567.6 eV, respectively. The 1.2 eV blueshift from the Pt(ii) to the Pt(iv) porphyrin derivative is smaller than expected for a formal two-electron oxidation of the metal center. A rationale was provided by DFT-based Hirshfeld which showed that the porphyrin ligand in the Pt(iv) complex is actually substantially oxidized relative to that in the Pt(ii) complex. The much smaller blueshift of 0.4 eV, going from PtIV[TpCF3PP]Cl2, and PtIV[TpCF3PC](Ar)(py), is ascribable to the significantly stronger ligand field in the latter compound.
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Affiliation(s)
- Benjamin D Matson
- Stanford Synchrotron Radiation Lightsource, SLAC National Accelerator Laboratory, Stanford University Menlo Park California 94025 USA
| | - Kolle E Thomas
- Department of Chemistry, UiT - The Arctic University of Norway N-9037 Tromsø Norway
| | - Abraham B Alemayehu
- Department of Chemistry, UiT - The Arctic University of Norway N-9037 Tromsø Norway
| | - Abhik Ghosh
- Stanford Synchrotron Radiation Lightsource, SLAC National Accelerator Laboratory, Stanford University Menlo Park California 94025 USA
| | - Ritimukta Sarangi
- Stanford Synchrotron Radiation Lightsource, SLAC National Accelerator Laboratory, Stanford University Menlo Park California 94025 USA
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15
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Neuman NI, Singha Hazari A, Beerhues J, Doctorovich F, Vaillard SE, Sarkar B. Synthesis and Characterization of a Cobalt(III) Corrole with an S‐Bound DMSO Ligand. Eur J Inorg Chem 2021. [DOI: 10.1002/ejic.202100524] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Affiliation(s)
- Nicolás I. Neuman
- Lehrstuhl für Anorganische Koordinationschemie Institut für Anorganische Chemie Universität Stuttgart Pfaffenwaldring 55 70569 Stuttgart Germany
- Instituto de Desarrollo Tecnológico para la Industria Química, INTEC, UNL-CONICET Predio CONICET Santa Fe Dr. Alberto Cassano Ruta Nacional N° 168, Km 0 Paraje El Pozo S3000ZAA Santa Fe Argentina
| | - Arijit Singha Hazari
- Lehrstuhl für Anorganische Koordinationschemie Institut für Anorganische Chemie Universität Stuttgart Pfaffenwaldring 55 70569 Stuttgart Germany
| | - Julia Beerhues
- Lehrstuhl für Anorganische Koordinationschemie Institut für Anorganische Chemie Universität Stuttgart Pfaffenwaldring 55 70569 Stuttgart Germany
| | - Fabio Doctorovich
- Departamento de Química Inorgánica Analítica y Química Física/INQUIMAE-CONICET Facultad de Ciencias Exactas y Naturales Universidad de Buenos Aires Ciudad Universitaria Pabellón II Buenos Aires C1428EHA) Argentina
| | - Santiago E. Vaillard
- Instituto de Desarrollo Tecnológico para la Industria Química, INTEC, UNL-CONICET Predio CONICET Santa Fe Dr. Alberto Cassano Ruta Nacional N° 168, Km 0 Paraje El Pozo S3000ZAA Santa Fe Argentina
| | - Biprajit Sarkar
- Lehrstuhl für Anorganische Koordinationschemie Institut für Anorganische Chemie Universität Stuttgart Pfaffenwaldring 55 70569 Stuttgart Germany
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16
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Neuman NI, Albold U, Ferretti E, Chandra S, Steinhauer S, Rößner P, Meyer F, Doctorovich F, Vaillard SE, Sarkar B. Cobalt Corroles as Electrocatalysts for Water Oxidation: Strong Effect of Substituents on Catalytic Activity. Inorg Chem 2020; 59:16622-16634. [PMID: 33153263 DOI: 10.1021/acs.inorgchem.0c02550] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/31/2023]
Abstract
Two Co(III) complexes (1Py2 and 2Py2) of new corrole ligands H3L1 (5,15-bis(p-methylcarboxyphenyl)-10-(o-methylcarboxyphenyl)corrole) and H3L2 (5,15-bis(p-nitrophenyl)-10-(o-methylcarboxyphenyl)corrole) with two apical pyridine ligands have been synthesized and thoroughly characterized by cyclic voltammetry, UV-vis-NIR, and EPR spectroscopy, spectroelectrochemistry, single-crystal X-ray diffraction studies, and DFT methods. Complexes 1Py2 and 2Py2 possess much lower oxidation potentials than cobalt(III)-tris-pentafluorophenylcorrole (Co(tpfc)) and similar corroles containing pentafluorophenyl (C6F5) substituents, thus allowing access to high oxidation states of the former metallocorroles using mild chemical oxidants. The spectroscopic (UV-vis-NIR and EPR) and electronic properties of several oxidation states of these complexes have been determined by a combination of the mentioned methods. Complexes 1Py2 and 2Py2 undergo three oxidations within 1.3 V vs FcH+/FcH in MeCN, and we show that both complexes catalyze water oxidation in an MeCN/H2O mixture upon the third oxidation, with kobs (TOF) values of 1.86 s-1 at 1.29 V (1Py2) and 1.67 s-1 at 1.37 V (2Py2). These values are five times higher than previously reported TOF values for C6F5-substituted cobalt(III) corroles, a finding we ascribe to the additional charge in the corrole macrocycle due to the increased oxidation state. This work opens up new possibilities in the study of metallocorrole water oxidation catalysts, particularly by allowing spectroscopic probing of high-oxidation states and showing strong substituent-effects on catalytic activity of the corrole complexes.
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Affiliation(s)
- Nicolás I Neuman
- Institut für Chemie und Biochemie, Anorganische Chemie, Freie Universität Berlin, Fabeckstrasse 34-36, Berlin 14195, Germany.,Instituto de Desarrollo Tecnológico para la Industria Química, INTEC, UNL-CONICET Paraje El Pozo, Santa Fe, Argentina.,Institut für Anorganische Chemie, Universität Stuttgart, Pfaffenwaldring 55, Stuttgart D-70569, Germany
| | - Uta Albold
- Institut für Chemie und Biochemie, Anorganische Chemie, Freie Universität Berlin, Fabeckstrasse 34-36, Berlin 14195, Germany
| | - Eleonora Ferretti
- Institut für Chemie und Biochemie, Anorganische Chemie, Freie Universität Berlin, Fabeckstrasse 34-36, Berlin 14195, Germany
| | - Shubhadeep Chandra
- Institut für Chemie und Biochemie, Anorganische Chemie, Freie Universität Berlin, Fabeckstrasse 34-36, Berlin 14195, Germany
| | - Simon Steinhauer
- Institut für Chemie und Biochemie, Anorganische Chemie, Freie Universität Berlin, Fabeckstrasse 34-36, Berlin 14195, Germany
| | - Paul Rößner
- Institut für Technische Chemie, Universität Stuttgart, Pfaffenwaldring 55, Stuttgart D-70569, Germany
| | - Franc Meyer
- Institut für Anorganische Chemie, Universität Göttingen, Tammannstrasse 4, Göttingen 37077, Germany
| | - Fabio Doctorovich
- Departamento de Química Inorgánica; Analítica y Química Física/INQUIMAE-CONICET; Facultad de Ciencias Exactas y Naturales, Universidad de Buenos Aires, Ciudad Universitaria, Pabellón II, Buenos Aires C1428EHA, Argentina
| | - Santiago E Vaillard
- Instituto de Desarrollo Tecnológico para la Industria Química, INTEC, UNL-CONICET Paraje El Pozo, Santa Fe, Argentina
| | - Biprajit Sarkar
- Institut für Chemie und Biochemie, Anorganische Chemie, Freie Universität Berlin, Fabeckstrasse 34-36, Berlin 14195, Germany.,Lehrstuhl für Anorganische Koordinationschemie, Institut für Anorganische Chemie, Universität Göttingen, Tammannstrasse 4, Göttingen 37077, Germany
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17
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Osterloh WR, Desbois N, Quesneau V, Brandès S, Fleurat-Lessard P, Fang Y, Blondeau-Patissier V, Paolesse R, Gros CP, Kadish KM. Old Dog, New Tricks: Innocent, Five-coordinate Cyanocobalt Corroles. Inorg Chem 2020; 59:8562-8579. [PMID: 32452674 DOI: 10.1021/acs.inorgchem.0c01037] [Citation(s) in RCA: 12] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
Three mono-CN ligated anionic cobalt A3-triarylcorroles were synthesized and investigated as to their spectroscopic and electrochemical properties in CH2Cl2, pyridine (Py), and dimethyl sulfoxide (DMSO). The newly synthesized corroles provide the first examples of air-stable cobalt corroles with an anionic axial ligand and are represented as [(Ar)3CorCoIII(CN)]-TBA+, where Cor is the trivalent corrole macrocycle, Ar is p-(CN)Ph, p-(CF3)Ph, or p-(OMe)Ph, and TBA+ is the tetra-n-butylammonium (TBA) cation. Multiple redox reactions are observed for each mono-CN derivative with a key feature being a more facile first oxidation and a more difficult first reduction in all three solvents as compared to all previously examined corroles with similar meso- and β-pyrrole substituents. Formation constants (log K) for conversion of the five-coordinate mono-CN complex to its six-coordinate bis-CN form ranged from 102.8 for Ar = p-(OMe)Ph to 104.7 for Ar = p-(CN)Ph in DMSO as determined by spectroscopic methodologies. The in situ generated bis-CN complexes, represented as [(Ar)3CorCoIII(CN)2]2-(TBA+)2, and the mixed ligand complexes, represented as [(Ar)3CorCoIII(CN)(Py)]-TBA+, were also investigated as to their electrochemical and spectroscopic properties. UV-visible spectra and electrode reactions of the synthesized mono-CN derivatives are compared with the neutral mono-DMSO cobalt corrole complexes and the in situ generated bis-CN and bis-Py complexes, and the noninnocent (or innocent) nature of each cobalt corrole system is addressed. The data demonstrate the ability of the CN- axial ligand(s) to stabilize the high-valent forms of the metallocorrole, leading to systems with innocent macrocyclic ligands. Although a number of six-coordinate cobalt(III) corroles with N-donor ligands were characterized in the solid state, a dissociation of one axial ligand readily occurs in nonaqueous solvents, and this behavior contrasts with the high stability of the currently studied bis-CN adducts in CH2Cl2, pyridine, or DMSO. Linear free energy relationships were elucidated between the meso-phenyl Hammett substituent constants (Σσ) and the measured binding constants, the redox potentials, and the energy of the band positions in the mono-CN and bis-CN complexes in their neutral or singly oxidized forms, revealing highly predictable trends in the physicochemical properties of the anionic corroles.
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Affiliation(s)
- W Ryan Osterloh
- Department of Chemistry, University of Houston, Houston 77204-5003, Texas, United States
| | - Nicolas Desbois
- Université Bourgogne Franche-Comté, ICMUB (UMR CNRS 6302), 9 Avenue Alain Savary, BP 47870, Dijon, Cedex 21078, France
| | - Valentin Quesneau
- Université Bourgogne Franche-Comté, ICMUB (UMR CNRS 6302), 9 Avenue Alain Savary, BP 47870, Dijon, Cedex 21078, France
| | - Stéphane Brandès
- Université Bourgogne Franche-Comté, ICMUB (UMR CNRS 6302), 9 Avenue Alain Savary, BP 47870, Dijon, Cedex 21078, France
| | - Paul Fleurat-Lessard
- Université Bourgogne Franche-Comté, ICMUB (UMR CNRS 6302), 9 Avenue Alain Savary, BP 47870, Dijon, Cedex 21078, France
| | - Yuanyuan Fang
- Department of Chemistry, University of Houston, Houston 77204-5003, Texas, United States
| | - Virginie Blondeau-Patissier
- Department Time-Frequency, Université Bourgogne Franche-Comté, Institut FEMTO-ST (UMR CNRS 6174), 26 Chemin de l'épitaphe, Besançon Cedex 25030, France
| | - Roberto Paolesse
- Department of Chemical Science and Technology, University of Rome Tor Vergata, Via della Ricerca Scientifica 1, Rome 00133, Italy
| | - Claude P Gros
- Université Bourgogne Franche-Comté, ICMUB (UMR CNRS 6302), 9 Avenue Alain Savary, BP 47870, Dijon, Cedex 21078, France
| | - Karl M Kadish
- Department of Chemistry, University of Houston, Houston 77204-5003, Texas, United States
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18
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Lvova L, Pomarico G, Mandoj F, Caroleo F, Di Natale C, Kadish KM, Nardis S. Smartphone coupled with a paper-based optode: Towards a selective cyanide detection. J PORPHYR PHTHALOCYA 2020. [DOI: 10.1142/s1088424620500091] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022]
Abstract
A low-cost on-paper sensor based on 5,10,15-tritolylcorrolatocobalt(III) triphenylphosphine, CoTTCorr(PPh3), was developed for cyanide detection in aqueous solutions. The sensor was coupled to a smartphone and used a home-written color intensity analysis software in order to record and interpret the colorimetric response. The detection of cyanide was possible down to 0.053 mg/L, an order of magnitude lower than the value of 0.5 mg/L set by the World Health Organization (WHO) for safe short-term exposure of cyanide in potable water. The colorimetric sensor had selectivity toward cyanide ions over the anions Cl-, Br, F-, NO2, SCN-, OA[Formula: see text]-,ClO4-, H2PO4- and HCO3- while the influence of NO3- ions on the sensor optical response towards cyanide was overcome by optimization of the ionophore/anion-exchanger ratio inside the sensing material. The best performance was obtained for the optode with an ionophore to exchanger ratio of 1:3. The optimized optodes were employed for quantification of cyanide content added to potable water and saliva.
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Affiliation(s)
- Larisa Lvova
- Department of Chemical Sciences and Technologies, University “Tor Vergata”, via della Ricerca Scientifica, 1, Rome, 00133, Italy
- Laboratory of Artificial Sensory Systems, ITMO University, Kronverkskiy pr., 49, St. Petersburg, 197101, Russian Federation
| | - Giuseppe Pomarico
- Department of Molecular and Translational Medicine, Viale Europa, 11 - 25123 Brescia, Italy
| | - Federica Mandoj
- Department of Chemical Sciences and Technologies, University “Tor Vergata”, via della Ricerca Scientifica, 1, Rome, 00133, Italy
| | - Fabrizio Caroleo
- Department of Chemical Sciences and Technologies, University “Tor Vergata”, via della Ricerca Scientifica, 1, Rome, 00133, Italy
| | - Corrado Di Natale
- Laboratory of Artificial Sensory Systems, ITMO University, Kronverkskiy pr., 49, St. Petersburg, 197101, Russian Federation
- Department of Electronic Engineering, University “Tor Vergata”, via Politecnico, 1, 00133, Rome, Italy
| | - Karl M. Kadish
- Department of Chemistry, University of Houston, Houston, TX, USA
| | - Sara Nardis
- Department of Chemical Sciences and Technologies, University “Tor Vergata”, via della Ricerca Scientifica, 1, Rome, 00133, Italy
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19
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Thomassen IK, Ghosh A. Protonation-Induced Hyperporphyrin Spectra of meso-Aminophenylcorroles. ACS OMEGA 2020; 5:9023-9030. [PMID: 32337467 PMCID: PMC7178790 DOI: 10.1021/acsomega.0c01068] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/09/2020] [Accepted: 03/24/2020] [Indexed: 05/05/2023]
Abstract
UV-vis spectrophotometric titrations have been carried out on meso-tris(o/m/p-aminophenyl)corrole (H3[o/m/p-TAPC]) and meso-triphenylcorrole (H3[TPC]) in dimethyl sulfoxide with methanesulfonic acid (MSA). Monoprotonation was found to result in hyperporphyrin spectra characterized by new, red-shifted, and intense Q bands. The effect was particularly dramatic for H3[p-TAPC] for which the Q band red-shifted from ∼637 nm for the neutral species to 764 nm in the near-IR for H4[p-TAPC]+. Upon further protonation, the Q band was found to blue-shift back to 687 nm. A simple explanation of the phenomena has been offered in terms of quinonoid resonance forms.
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20
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Thomas KE, Desbois N, Conradie J, Teat SJ, Gros CP, Ghosh A. Gold dipyrrin-bisphenolates: a combined experimental and DFT study of metal–ligand interactions. RSC Adv 2020; 10:533-540. [PMID: 35492572 PMCID: PMC9047278 DOI: 10.1039/c9ra09228e] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/07/2019] [Accepted: 12/18/2019] [Indexed: 11/21/2022] Open
Abstract
Given that noninnocent and metalloradical-type electronic structures are ubiquitous among dipyrrin-bisphenolate (DPP) complexes, we synthesized the gold(iii) derivatives as potentially innocent paradigms against which the properties of other metallo-DPP derivatives can be evaluated. Electronic absorption spectra, electrochemical studies, a single-crystal X-ray structure, and DFT calculations all suggest that the ground states of the new complexes indeed correspond to an innocent AuIII–DPP3−, paralleling a similar description noted for Au corroles. Interestingly, while DFT calculations indicate purely ligand-centered oxidations, reduction of AuDPP is predicted to occur across both the metal and the ligand. The first gold dipyrrin-bisphenolates have been synthesized. Like their corrole analogues, they exhibit AuIII–L3− ground states, providing rare innocent paradigms for a class of complexes that commonly occur as metalloradicals.![]()
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Affiliation(s)
- Kolle E. Thomas
- Department of Chemistry
- UiT – The Arctic University of Norway
- Tromsø N-9037
- Norway
| | - Nicolas Desbois
- Institut de Chimie Moléculaire de l’Université de Bourgogne (ICMUB)
- UMR CNRS 6302
- Université Bourgogne-Franche Comté
- 21078 Dijon Cedex
- France
| | - Jeanet Conradie
- Department of Chemistry
- UiT – The Arctic University of Norway
- Tromsø N-9037
- Norway
- Department of Chemistry
| | - Simon J. Teat
- Advanced Light Source
- Lawrence Berkeley National Laboratory
- Berkeley
- USA
| | - Claude P. Gros
- Institut de Chimie Moléculaire de l’Université de Bourgogne (ICMUB)
- UMR CNRS 6302
- Université Bourgogne-Franche Comté
- 21078 Dijon Cedex
- France
| | - Abhik Ghosh
- Department of Chemistry
- UiT – The Arctic University of Norway
- Tromsø N-9037
- Norway
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21
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Cao R, Thomas KE, Ghosh A, Sarangi R. X-ray absorption spectroscopy of archetypal chromium porphyrin and corrole derivatives. RSC Adv 2020; 10:20572-20578. [PMID: 35517776 PMCID: PMC9054285 DOI: 10.1039/d0ra02335c] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/12/2020] [Accepted: 05/13/2020] [Indexed: 01/16/2023] Open
Abstract
A Cr K-edge XAS study of paradigmatic chromium porphyrin and corrole derivatives has been carried out, providing key data for the Cr(iv) and Cr(v) oxidation states.
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Affiliation(s)
- Rui Cao
- Stanford Synchrotron Radiation Lightsource
- SLAC National Accelerator Laboratory
- Stanford University
- Menlo Park
- USA
| | - Kolle E. Thomas
- Department of Chemistry
- UiT – the Arctic University of Norway
- N-9037 Tromsø
- Norway
| | - Abhik Ghosh
- Department of Chemistry
- UiT – the Arctic University of Norway
- N-9037 Tromsø
- Norway
| | - Ritimukta Sarangi
- Stanford Synchrotron Radiation Lightsource
- SLAC National Accelerator Laboratory
- Stanford University
- Menlo Park
- USA
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22
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Osterloh WR, Quesneau V, Desbois N, Brandès S, Shan W, Blondeau-Patissier V, Paolesse R, Gros CP, Kadish KM. Synthesis and the Effect of Anions on the Spectroscopy and Electrochemistry of Mono(dimethyl sulfoxide)-Ligated Cobalt Corroles. Inorg Chem 2019; 59:595-611. [DOI: 10.1021/acs.inorgchem.9b02855] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
Affiliation(s)
- W. Ryan Osterloh
- Department of Chemistry, University of Houston, Houston, Texas 77204, United States
| | - Valentin Quesneau
- Université Bourgogne Franche-Comté, ICMUB (UMR CNRS 6302), 9 Avenue Alain Savary, BP 47870, 21078 Dijon, Cedex, France
| | - Nicolas Desbois
- Université Bourgogne Franche-Comté, ICMUB (UMR CNRS 6302), 9 Avenue Alain Savary, BP 47870, 21078 Dijon, Cedex, France
| | - Stéphane Brandès
- Université Bourgogne Franche-Comté, ICMUB (UMR CNRS 6302), 9 Avenue Alain Savary, BP 47870, 21078 Dijon, Cedex, France
| | - Wenqian Shan
- Department of Chemistry, University of Houston, Houston, Texas 77204, United States
| | - Virginie Blondeau-Patissier
- Department of Time-Frequency, Université Bourgogne Franche-Comté, Institut FEMTO-ST (UMR CNRS 6174), 26 Chemin de l’épitaphe, 25030 Besançon Cedex, France
| | - Roberto Paolesse
- Department of Chemical Science and Technology, University of Rome Tor Vergata, Via della Ricerca Scientifica 1, 00133 Rome, Italy
| | - Claude P. Gros
- Université Bourgogne Franche-Comté, ICMUB (UMR CNRS 6302), 9 Avenue Alain Savary, BP 47870, 21078 Dijon, Cedex, France
| | - Karl M. Kadish
- Department of Chemistry, University of Houston, Houston, Texas 77204, United States
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23
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Chen QC, Xiao ZY, Fite S, Mizrahi A, Fridman N, Zhan X, Keisar O, Cohen Y, Gross Z. Tuning Chemical and Physical Properties of Phosphorus Corroles for Advanced Applications. Chemistry 2019; 25:11383-11388. [PMID: 31251414 DOI: 10.1002/chem.201902686] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/11/2019] [Indexed: 12/13/2022]
Abstract
Although the affinity of metallocorroles to axial ligands is quite low, this is not the case when the chelated element is phosphorus. This work is hence focused on the mechanism of ligand exchange of six-coordinate phosphorus corroles as a tool for affecting their chemical and physical properties. These fundamental investigations allowed for the development of facile methodologies for the synthesis of a large series of complexes and the establishment of several new structure/activity profiles that may be used to understand and predict spectroscopic features and for tailor-made modification of photophysical and electrochemical properties. This is exemplified by the facile access to complexes with terminal groups that are of large potential for practical applications based on click chemistry, optical imaging, and surface science.
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Affiliation(s)
- Qiu-Cheng Chen
- Schulich Faculty of Chemistry, Technion-Israel Institute of Technology, Haifa, 32000, Israel
| | - Zi-Ye Xiao
- Schulich Faculty of Chemistry, Technion-Israel Institute of Technology, Haifa, 32000, Israel
| | - Shachar Fite
- Schulich Faculty of Chemistry, Technion-Israel Institute of Technology, Haifa, 32000, Israel
| | - Amir Mizrahi
- Schulich Faculty of Chemistry, Technion-Israel Institute of Technology, Haifa, 32000, Israel.,Department of Chemistry, Nuclear Research Centre- Negev, Beer Sheva, 9001, Israel
| | - Natalia Fridman
- Schulich Faculty of Chemistry, Technion-Israel Institute of Technology, Haifa, 32000, Israel
| | - Xuan Zhan
- Schulich Faculty of Chemistry, Technion-Israel Institute of Technology, Haifa, 32000, Israel
| | - Or Keisar
- Schulich Faculty of Chemistry, Technion-Israel Institute of Technology, Haifa, 32000, Israel.,Israel Atomic Energy Commission, Tel Aviv, 61070, Israel
| | - Yair Cohen
- Department of Chemistry, Nuclear Research Centre- Negev, Beer Sheva, 9001, Israel
| | - Zeev Gross
- Schulich Faculty of Chemistry, Technion-Israel Institute of Technology, Haifa, 32000, Israel
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24
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Abstract
Noninnocent ligands do not allow an unambiguous definition of the oxidation state of a coordinated atom. When coordinated, the ligands also cannot be adequately represented by a classic Lewis structure. A noninnocent system thus harbors oxidizing (holes) or reducing equivalents (electrons) that are delocalized over both the ligand and the coordinated atom. To a certain degree, that is true of all complexes, but the phenomenon is arguably most conspicuous in complexes involving ligands with extended π-systems. The electronic structures of such systems have often been mischaracterized, thereby muddying the chemical literature to the detriment of students and newcomers to the field. In recent years, we have investigated the electronic structures of several metallocorrole families, several of which have turned out to be noninnocent. Our goal here, however, is not to present a systematic account of the different classes of metallocorroles, but rather to focus on seven major tools (in a nod to A. G. Cairns-Smith's Seven Clues to the Origin of Life) that led us to recognize noninnocent behavior and subsequently to characterize the phenomenon in depth. (1) The optical probe: For a series of noninnocent meso-triarylcorrole derivatives with different para substituents X, the Soret maxima are typically exquisitely sensitive to the nature of X, red-shifting with increasing electron-donating character of the group. No such substituent sensitivity is observed for the Soret maxima of innocent triarylcorrole derivatives. (2) Quantum chemistry: Spin-unrestricted density functional theory calculations permit a simple and quick visualization of ligand noninnocence in terms of the spin density profile. Even for an S = 0 complex, the broken-symmetry method often affords a spin density profile that, its fictitious character notwithstanding, helps visualize the intramolecular spin couplings. (3) NMR and EPR spectroscopy: In principle, these two techniques afford experimental probes of the electronic spin density. (4) Structure/X-ray crystallography. Ligand noninnocence in metallocorroles is often reflected in small but distinct skeletal bond length alternations in and around the bipyrrole part of the macrocycle. In addition, for Cu and some Ag corroles, ligand noninnocence manifests itself via a strong saddling of the macrocycle. (5) Vibrational spectroscopy. Unsurprisingly, the aforementioned bond length alternations translate to structure-sensitive vibrational marker bands. (6) Electrochemistry. Noninnocent metallocorroles exhibit characteristically high reduction potentials, but caution should be exercised in turning the logic around. A high reduction potential does not necessarily signify a noninnocent metallocorrole; certain high-valent metal centers also undergo metal-centered reduction at quite high potentials. (7) X-ray absorption spectroscopy (XAS). By focusing on a given element, typically the central atom in a coordination complex, X-ray absorption near-edge spectroscopy (XANES) can provide uniquely detailed local information on oxidation and spin states, ligand field strength, and degree of centrosymmetry. For metallocorroles, some of the most clear-cut distinctions between innocent and noninnocent systems have come from the K-edge XANES of Mn and Fe corroles. For researchers faced with a new, potentially noninnocent system, the take-home message is to employ a good majority (i.e., at least four) of the above methods to arrive at a reliable conclusion vis-à-vis noninnocence.
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Affiliation(s)
- Sumit Ganguly
- Department of Chemistry and Arctic Center for Sustainable Energy, UiT−The Arctic University of Norway, N-9037 Tromsø, Norway
| | - Abhik Ghosh
- Department of Chemistry and Arctic Center for Sustainable Energy, UiT−The Arctic University of Norway, N-9037 Tromsø, Norway
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25
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26
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Shan W, Desbois N, Pacquelet S, Stéphane Brandès, Rousselin Y, Conradie J, Ghosh A, Gros CP, Kadish KM. Ligand Noninnocence in Cobalt Dipyrrin-Bisphenols: Spectroscopic, Electrochemical, and Theoretical Insights Indicating an Emerging Analogy with Corroles. Inorg Chem 2019; 58:7677-7689. [PMID: 30653313 DOI: 10.1021/acs.inorgchem.8b03006] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/23/2023]
Abstract
Three cobalt dipyrrin-bisphenol (DPPCo) complexes with different meso-aryl groups (pentafluorophenyl, phenyl, and mesityl) were synthesized and characterized based on their electrochemistry and spectroscopic properties in nonaqueous media. Each DPPCo undergoes multiple oxidations and reductions with the potentials, reversibility, and number of processes depending on the specific solution conditions, the specific macrocyclic substituents, and the type and number of axially coordinated ligands on the central cobalt ion. Theoretical calculations of the compounds with different coordination numbers are given in the current study in order to elucidate the cobalt-ion oxidation state and the innocence or noninnocence of the macrocyclic ligand as a function of the changes in the solvent properties and degree of axial coordination. Electron paramagnetic resonance spectra of the compounds are obtained to experimentally assess the electron spin state. An X-ray structure of the six-coordinate complex is also presented. The investigated chemical properties of DPPCo compounds under different solution conditions are compared to those of cobalt corroles, where the macrocycle and metal ion also possess formal 3- and 3+ oxidation states in their air-stable forms.
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Affiliation(s)
- Wenqian Shan
- Department of Chemistry , University of Houston , Houston , Texas 77204-5003 , United States
| | - Nicolas Desbois
- Institut de Chimie Moléculaire de l'Université de Bourgogne (ICMUB) , UMR CNRS 6302, Université de Bourgogne-Franche-Comté , 9 avenue Alain Savary , B.P. 47870, 21078 Dijon, Cedex , France
| | - Sandrine Pacquelet
- Institut de Chimie Moléculaire de l'Université de Bourgogne (ICMUB) , UMR CNRS 6302, Université de Bourgogne-Franche-Comté , 9 avenue Alain Savary , B.P. 47870, 21078 Dijon, Cedex , France
| | - Stéphane Brandès
- Institut de Chimie Moléculaire de l'Université de Bourgogne (ICMUB) , UMR CNRS 6302, Université de Bourgogne-Franche-Comté , 9 avenue Alain Savary , B.P. 47870, 21078 Dijon, Cedex , France
| | - Yoann Rousselin
- Institut de Chimie Moléculaire de l'Université de Bourgogne (ICMUB) , UMR CNRS 6302, Université de Bourgogne-Franche-Comté , 9 avenue Alain Savary , B.P. 47870, 21078 Dijon, Cedex , France
| | - Jeanet Conradie
- Department of Chemistry , University of the Free State , Bloemfontein 9300 , Republic of South Africa
| | - Abhik Ghosh
- Department of Chemistry , UiT-The Arctic University of Norway , Tromsø N-9037 , Norway
| | - Claude P Gros
- Institut de Chimie Moléculaire de l'Université de Bourgogne (ICMUB) , UMR CNRS 6302, Université de Bourgogne-Franche-Comté , 9 avenue Alain Savary , B.P. 47870, 21078 Dijon, Cedex , France
| | - Karl M Kadish
- Department of Chemistry , University of Houston , Houston , Texas 77204-5003 , United States
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27
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Sudhakar K, Mahammed A, Fridman N, Gross Z. Trifluoromethylation for affecting the structural, electronic and redox properties of cobalt corroles. Dalton Trans 2019; 48:4798-4810. [DOI: 10.1039/c9dt00675c] [Citation(s) in RCA: 20] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
Abstract
Novel synthetic methodologies for accessing trifluoromethylated cobalt corroles allow beneficial tuning of their chemical and physical properties for catalysis.
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Affiliation(s)
- Kolanu Sudhakar
- Schulich Faculty of Chemistry
- Technion-Israel Institute of Technology
- Haifa 32000
- Israel
| | - Atif Mahammed
- Schulich Faculty of Chemistry
- Technion-Israel Institute of Technology
- Haifa 32000
- Israel
| | - Natalia Fridman
- Schulich Faculty of Chemistry
- Technion-Israel Institute of Technology
- Haifa 32000
- Israel
| | - Zeev Gross
- Schulich Faculty of Chemistry
- Technion-Israel Institute of Technology
- Haifa 32000
- Israel
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28
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Quesneau V, Shan W, Desbois N, Brandès S, Rousselin Y, Vanotti M, Blondeau-Patissier V, Naitana M, Fleurat-Lessard P, Van Caemelbecke E, Kadish KM, Gros CP. Cobalt Corroles with Bis-Ammonia or Mono-DMSO Axial Ligands. Electrochemical, Spectroscopic Characterizations and Ligand Binding Properties. Eur J Inorg Chem 2018. [DOI: 10.1002/ejic.201800897] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Affiliation(s)
- Valentin Quesneau
- Université de Bourgogne Franche-Comté; ICMUB (UMR CNRS 6302); 9, Avenue A. Savary, BP 4787 21078 Dijon Cedex 0 France
| | - Wenqian Shan
- Department of Chemistry; University of Houston; 5003 Houston Texas, 77204- USA
| | - Nicolas Desbois
- Université de Bourgogne Franche-Comté; ICMUB (UMR CNRS 6302); 9, Avenue A. Savary, BP 4787 21078 Dijon Cedex 0 France
| | - Stéphane Brandès
- Université de Bourgogne Franche-Comté; ICMUB (UMR CNRS 6302); 9, Avenue A. Savary, BP 4787 21078 Dijon Cedex 0 France
| | - Yoann Rousselin
- Université de Bourgogne Franche-Comté; ICMUB (UMR CNRS 6302); 9, Avenue A. Savary, BP 4787 21078 Dijon Cedex 0 France
| | - Meddy Vanotti
- Department Time-Frequency; Institut FEMTO-ST (UMR CNRS 6174); Université de Bourgogne Franche-Comté; 26 25030 Besançon Cedex Chemin de l'épitaphe France
| | - Virginie Blondeau-Patissier
- Department Time-Frequency; Institut FEMTO-ST (UMR CNRS 6174); Université de Bourgogne Franche-Comté; 26 25030 Besançon Cedex Chemin de l'épitaphe France
| | - Mario Naitana
- Université de Bourgogne Franche-Comté; ICMUB (UMR CNRS 6302); 9, Avenue A. Savary, BP 4787 21078 Dijon Cedex 0 France
| | - Paul Fleurat-Lessard
- Université de Bourgogne Franche-Comté; ICMUB (UMR CNRS 6302); 9, Avenue A. Savary, BP 4787 21078 Dijon Cedex 0 France
| | - Eric Van Caemelbecke
- Department of Chemistry; University of Houston; 5003 Houston Texas, 77204- USA
- Department of Chemistry; Houston Baptist University; 7502 Fondren Road 77074-3298 Houston TX USA
| | - Karl M. Kadish
- Department of Chemistry; University of Houston; 5003 Houston Texas, 77204- USA
| | - Claude P. Gros
- Université de Bourgogne Franche-Comté; ICMUB (UMR CNRS 6302); 9, Avenue A. Savary, BP 4787 21078 Dijon Cedex 0 France
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29
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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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30
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Jiang X, Naitana ML, Desbois N, Quesneau V, Brandès S, Rousselin Y, Shan W, Osterloh WR, Blondeau-Patissier V, Gros CP, Kadish KM. Electrochemistry of Bis(pyridine)cobalt (Nitrophenyl)corroles in Nonaqueous Media. Inorg Chem 2018; 57:1226-1241. [DOI: 10.1021/acs.inorgchem.7b02655] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Xiaoqin Jiang
- Department of Chemistry, University of Houston, Houston, Texas 77204, United States
| | - Mario L. Naitana
- Université de Bourgogne Franche-Comté, ICMUB (UMR CNRS 6302), 9 Avenue Alain Savary, BP 47870, 21078 Dijon, Cedex, France
| | - Nicolas Desbois
- Université de Bourgogne Franche-Comté, ICMUB (UMR CNRS 6302), 9 Avenue Alain Savary, BP 47870, 21078 Dijon, Cedex, France
| | - Valentin Quesneau
- Université de Bourgogne Franche-Comté, ICMUB (UMR CNRS 6302), 9 Avenue Alain Savary, BP 47870, 21078 Dijon, Cedex, France
| | - Stéphane Brandès
- Université de Bourgogne Franche-Comté, ICMUB (UMR CNRS 6302), 9 Avenue Alain Savary, BP 47870, 21078 Dijon, Cedex, France
| | - Yoann Rousselin
- Université de Bourgogne Franche-Comté, ICMUB (UMR CNRS 6302), 9 Avenue Alain Savary, BP 47870, 21078 Dijon, Cedex, France
| | - Wenqian Shan
- Department of Chemistry, University of Houston, Houston, Texas 77204, United States
| | - W. Ryan Osterloh
- Department of Chemistry, University of Houston, Houston, Texas 77204, United States
| | - Virginie Blondeau-Patissier
- Department of Time-Frequency, Université de Bourgogne Franche-Comté, Institut FEMTO-ST (UMR CNRS 6174), 26 Chemin de l’épitaphe, 25030 Besançon Cedex, France
| | - Claude P. Gros
- Université de Bourgogne Franche-Comté, ICMUB (UMR CNRS 6302), 9 Avenue Alain Savary, BP 47870, 21078 Dijon, Cedex, France
| | - Karl M. Kadish
- Department of Chemistry, University of Houston, Houston, Texas 77204, United States
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31
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Jiang X, Shan W, Desbois N, Quesneau V, Brandès S, Caemelbecke EV, Osterloh WR, Blondeau-Patissier V, Gros CP, Kadish KM. Mono-DMSO ligated cobalt nitrophenylcorroles: electrochemical and spectral characterization. NEW J CHEM 2018. [DOI: 10.1039/c8nj00300a] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Four mono-DMSO ligated cobalt corroles with one or threemeso-nitrophenyl substituents on the macrocycle were synthesized and investigated as to their electrochemical and spectroscopic properties in CH2Cl2and DMSO.
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Affiliation(s)
- X. Jiang
- Department of Chemistry
- University of Houston
- Houston
- USA
| | - W. Shan
- Department of Chemistry
- University of Houston
- Houston
- USA
| | - N. Desbois
- Université de Bourgogne Franche-Comté
- ICMUB (UMR CNRS 6302)
- 21078 Dijon
- France
| | - V. Quesneau
- Université de Bourgogne Franche-Comté
- ICMUB (UMR CNRS 6302)
- 21078 Dijon
- France
| | - S. Brandès
- Université de Bourgogne Franche-Comté
- ICMUB (UMR CNRS 6302)
- 21078 Dijon
- France
| | - E. Van Caemelbecke
- Department of Chemistry
- University of Houston
- Houston
- USA
- Department of Chemistry
| | | | - V. Blondeau-Patissier
- Department Time-Frequency
- Université de Bourgogne Franche-Comté
- Institut FEMTO-ST (UMR CNRS 6174)
- 25030 Besançon
- France
| | - C. P. Gros
- Université de Bourgogne Franche-Comté
- ICMUB (UMR CNRS 6302)
- 21078 Dijon
- France
| | - K. M. Kadish
- Department of Chemistry
- University of Houston
- Houston
- USA
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