1
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Marques HM. The inorganic chemistry of the cobalt corrinoids - an update. J Inorg Biochem 2023; 242:112154. [PMID: 36871417 DOI: 10.1016/j.jinorgbio.2023.112154] [Citation(s) in RCA: 8] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/07/2023] [Revised: 01/23/2023] [Accepted: 01/26/2023] [Indexed: 02/05/2023]
Abstract
The inorganic chemistry of the cobalt corrinoids, derivatives of vitamin B12, is reviewed, with particular emphasis on equilibrium constants for, and kinetics of, their axial ligand substitution reactions. The role the corrin ligand plays in controlling and modifying the properties of the metal ion is emphasised. Other aspects of the chemistry of these compounds, including their structure, corrinoid complexes with metals other than cobalt, the redox chemistry of the cobalt corrinoids and their chemical redox reactions, and their photochemistry are discussed. Their role as catalysts in non-biological reactions and aspects of their organometallic chemistry are briefly mentioned. Particular mention is made of the role that computational methods - and especially DFT calculations - have played in developing our understanding of the inorganic chemistry of these compounds. A brief overview of the biological chemistry of the B12-dependent enzymes is also given for the reader's convenience.
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Affiliation(s)
- Helder M Marques
- Molecular Sciences Institute, School of Chemistry, University of the Witwatersrand, Johannesburg 2050, South Africa.
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2
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Ureche D, Bulhac I, Shova S, Bourosh P. Pseudomacrocyclic Bis(dianilineglyoximato)cobalt(III) Complex Cations: Synthesis and Structures. RUSS J COORD CHEM+ 2022. [DOI: 10.1134/s1070328422060070] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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3
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Bourosh PN, Coropceanu EB, Rija AP, Ureche D, Ciloci AA, Clapco SF, Dvornina EG, Labliuc SV, Bulhac II. Synthesis and Structures of Disulfanilamide Glyoxime and Ni(II) and Cu(II) Complexes with This Ligand Stimulating the Proteolytic Properties of [Cu(DsamH2)3]SO4·5H2O. RUSS J COORD CHEM+ 2022. [DOI: 10.1134/s1070328422010018] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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4
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Dastidar TG, Chattopadhyay S. Synthetic strategies, structures and properties of di and polynuclear cobalt complexes with H2salen type Schiff bases and their reduced analogues. Polyhedron 2022. [DOI: 10.1016/j.poly.2021.115511] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/08/2023]
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5
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Oswald E, Gaus AL, Kund J, Küllmer M, Romer J, Weizenegger S, Ullrich T, Mengele AK, Petermann L, Leiter R, Unwin PR, Kaiser U, Rau S, Kahnt A, Turchanin A, von Delius M, Kranz C. Cobaloxime Complex Salts: Synthesis, Patterning on Carbon Nanomembranes and Heterogeneous Hydrogen Evolution Studies. Chemistry 2021; 27:16896-16903. [PMID: 34713512 PMCID: PMC9299159 DOI: 10.1002/chem.202102778] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/30/2021] [Indexed: 12/26/2022]
Abstract
Cobaloximes are promising, earth‐abundant catalysts for the light‐driven hydrogen evolution reaction (HER). Typically, these cobalt(III) complexes are prepared in situ or employed in their neutral form, for example, [Co(dmgH)2(py)Cl], even though related complex salts have been reported previously and could, in principle, offer improved catalytic activity as well as more efficient immobilization on solid support. Herein, we report an interdisciplinary investigation into complex salts [Co(dmgH)2(py)2]+[Co(dmgBPh2)2Cl2]−, TBA+[Co(dmgBPh2)2Cl2]-
and [Co(dmgH)2(py)2]+BArF−. We describe their strategic syntheses from the commercially available complex [Co(dmgH)2(py)Cl] and demonstrate that these double and single complex salts are potent catalysts for the light‐driven HER. We also show that scanning electrochemical cell microscopy can be used to deposit arrays of catalysts [Co(dmgH)2(py)2]+[Co(dmgBPh2)2Cl2]−, TBA+[Co(dmgBPh2)2Cl2]-
and [Co(dmgH)2(py)Cl] on supported and free‐standing amino‐terminated ∼1‐nm‐thick carbon nanomembranes (CNMs). Photocatalytic H2 evolution at such arrays was quantified with Pd microsensors by scanning electrochemical microscopy, thus providing a new approach for catalytic evaluation and opening up novel routes for the creation and analysis of “designer catalyst arrays”, nanoprinted in a desired pattern on a solid support.
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Affiliation(s)
- Eva Oswald
- Institute of Analytical and Bioanalytical Chemistry, Albert-Einstein-Allee 11, 89081, Ulm, Germany
| | - Anna-Laurine Gaus
- Institute of Organic Chemistry I, Ulm University, Albert-Einstein-Allee 11, 89081, Ulm, Germany
| | - Julian Kund
- Institute of Analytical and Bioanalytical Chemistry, Albert-Einstein-Allee 11, 89081, Ulm, Germany
| | - Maria Küllmer
- Institute of Physical Chemistry, Friedrich Schiller University Jena, Lessingstrasse 10, 07743, Jena, Germany
| | - Jan Romer
- Institute of Analytical and Bioanalytical Chemistry, Albert-Einstein-Allee 11, 89081, Ulm, Germany
| | - Simon Weizenegger
- Institute of Organic Chemistry I, Ulm University, Albert-Einstein-Allee 11, 89081, Ulm, Germany
| | - Tobias Ullrich
- Department of Chemistry and Pharmacy, Friedrich Alexander University Erlangen-Nürnberg, Egerlandstrasse 3, 91058, Erlangen, Germany
| | - Alexander K Mengele
- Institute of Inorganic Chemistry I, Ulm University, Albert-Einstein-Allee 11, 89081, Ulm, Germany
| | - Lydia Petermann
- Institute of Inorganic Chemistry I, Ulm University, Albert-Einstein-Allee 11, 89081, Ulm, Germany
| | - Robert Leiter
- Central Facility Electron Microscopy, Materials Science Electron Microscopy, Ulm University, Albert-Einstein-Allee 11, 89081, Ulm, Germany
| | - Patrick R Unwin
- Department of Chemistry, University of Warwick, Gibbet Hill Road, CV4 7AL, Coventry, UK
| | - Ute Kaiser
- Central Facility Electron Microscopy, Materials Science Electron Microscopy, Ulm University, Albert-Einstein-Allee 11, 89081, Ulm, Germany
| | - Sven Rau
- Institute of Inorganic Chemistry I, Ulm University, Albert-Einstein-Allee 11, 89081, Ulm, Germany
| | - Axel Kahnt
- Leibniz-Institute of Surface Engineering (IOM), Permoserstrasse 15, 04318, Leipzig, Germany
| | - Andrey Turchanin
- Institute of Physical Chemistry, Friedrich Schiller University Jena, Lessingstrasse 10, 07743, Jena, Germany
| | - Max von Delius
- Institute of Organic Chemistry I, Ulm University, Albert-Einstein-Allee 11, 89081, Ulm, Germany
| | - Christine Kranz
- Institute of Analytical and Bioanalytical Chemistry, Albert-Einstein-Allee 11, 89081, Ulm, Germany
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6
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Ghosh AP, Toda MJ, Kozlowski PM. What Triggers the Cleavage of the Co–C 5′ Bond in Coenzyme B 12-Dependent Itaconyl-CoA Methylmalonyl-CoA Mutase? ACS Catal 2021. [DOI: 10.1021/acscatal.1c00291] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/28/2022]
Affiliation(s)
- Arghya Pratim Ghosh
- Department of Chemistry, University of Louisville, Louisville, Kentucky 40292, United States
| | - Megan J. Toda
- Department of Chemistry, University of Louisville, Louisville, Kentucky 40292, United States
| | - Pawel M. Kozlowski
- Department of Chemistry, University of Louisville, Louisville, Kentucky 40292, United States
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7
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Berradj O, Bougherra H, Adkhis A, Amrouche T, Amraoui NE, Hammoutène D. Synthesis, spectroscopic, thermal decomposition, DFT studies and antibacterial activity of uracil cobalt(III)dimethylglyoximato complexes. J Mol Struct 2021. [DOI: 10.1016/j.molstruc.2021.130040] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
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8
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Thakurta S, Maiti M, Rosair GM, Kuznetsov A. A Rare Angular Trinuclear Mixed Valence Cobalt(III-II-III) Complex With Azido Bridges And Salpn-Type Schiff-Base Ligand: Synthesis, Crystal Structure And DFT Study. J Mol Struct 2021. [DOI: 10.1016/j.molstruc.2020.129863] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/01/2022]
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9
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Cobaloximes as Building Blocks in Halogen-Bonded Cocrystals. MATERIALS 2020; 13:ma13102370. [PMID: 32455679 PMCID: PMC7287722 DOI: 10.3390/ma13102370] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 04/29/2020] [Revised: 05/16/2020] [Accepted: 05/18/2020] [Indexed: 12/14/2022]
Abstract
In this work, we explore the halogen-bonded cocrystallization potential of cobaloxime complexes in the synthesis of cocrystals with perhalogenated benzenes. We demonstrate a strategy for synthesizing halogen-bonded metal–organic cocrystals by utilizing cobaloximes whose pendant bromide group and oxime oxygen enable halogen bonding. By combining three well-known halogen bond donor molecules differing in binding geometry and composition with three cobaloxime units, we obtained a total of four previously unreported cocrystals. Single crystal X-ray diffraction experiments showed that the majority of obtained cocrystals exhibited the formation of the targeted I···O and I···Br motives. These results illustrate the potential of cobaloximes as halogen bond acceptors and indicate that this type of halogen bond acceptors may offer a novel route to metal–organic halogen-bonded cocrystals.
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10
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Coropceanu E, Rudic V, Cepoi L, Rudi L, Lozan V, Chiriac T, Miscu V, Bulhac I, Kravtsov V, Bourosh P. Synthesis and Crystal Structure of [Co(DmgH)2(Thio)2]2F[PF6]. The Effect of Fluorine-Containing Co(III) Dioximates on the Physiological Processes of the Microalga Porphyridium cruentum. RUSS J COORD CHEM+ 2019. [DOI: 10.1134/s1070328419030059] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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11
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Demarteau J, Debuigne A, Detrembleur C. Organocobalt Complexes as Sources of Carbon-Centered Radicals for Organic and Polymer Chemistries. Chem Rev 2019; 119:6906-6955. [DOI: 10.1021/acs.chemrev.8b00715] [Citation(s) in RCA: 93] [Impact Index Per Article: 18.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/09/2023]
Affiliation(s)
- Jérémy Demarteau
- Center for Education and Research on Macromolecules (CERM), CESAM Research Unit, University of Liège, Allée du 6 Août, Building B6A, Agora Square, 4000 Liège, Belgium
| | - Antoine Debuigne
- Center for Education and Research on Macromolecules (CERM), CESAM Research Unit, University of Liège, Allée du 6 Août, Building B6A, Agora Square, 4000 Liège, Belgium
| | - Christophe Detrembleur
- Center for Education and Research on Macromolecules (CERM), CESAM Research Unit, University of Liège, Allée du 6 Août, Building B6A, Agora Square, 4000 Liège, Belgium
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12
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Çelik TA, Sarikavakli N, Aslantürk ÖS. In vitro
cytotoxic and apoptotic effect of vic
-dioxime ligand and its metal complexes. Appl Organomet Chem 2019. [DOI: 10.1002/aoc.4818] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
Affiliation(s)
- Tülay Aşkın Çelik
- Department of Biology; Adnan Menderes University; 09010 Aydın Turkey
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13
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Kumar N, Bucher D, Kozlowski PM. Mechanistic Implications of Reductive Co–C Bond Cleavage in B12-Dependent Methylmalonyl CoA Mutase. J Phys Chem B 2019; 123:2210-2216. [DOI: 10.1021/acs.jpcb.8b10820] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Neeraj Kumar
- Computational Biology and Bioinformatics Group, Biological Sciences Division, Pacific Northwest National Laboratory, Richland, Washington 99352, United States
| | - Denis Bucher
- Molecular Modeling & Design at leadXpro Villigen, Canton of Aargau, Switzerland
| | - Pawel M. Kozlowski
- Department of Chemistry, University of Louisville, Louisville, Kentucky 40292, United States
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14
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Karczewski M, Ociepa M, Gryko D. Cobalamin-Catalysed Chemical Reactions: Probing the Role of the Nucleotide Loop. European J Org Chem 2018. [DOI: 10.1002/ejoc.201800877] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Affiliation(s)
- Maksymilian Karczewski
- Institute of Organic Chemistry; Polish Academy of Sciences; Kasprzaka 44/52 01-224 Warsaw Poland
| | - Michał Ociepa
- Institute of Organic Chemistry; Polish Academy of Sciences; Kasprzaka 44/52 01-224 Warsaw Poland
| | - Dorota Gryko
- Institute of Organic Chemistry; Polish Academy of Sciences; Kasprzaka 44/52 01-224 Warsaw Poland
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15
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Lewis NA, Pakhomova S, Marzilli PA, Marzilli LG. Synthesis and Characterization of Pt(II) Complexes with Pyridyl Ligands: Elongated Octahedral Ion Pairs and Other Factors Influencing 1H NMR Spectra. Inorg Chem 2017; 56:9781-9793. [PMID: 28771331 DOI: 10.1021/acs.inorgchem.7b01294] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/08/2023]
Abstract
Our goal is to develop convenient methods for obtaining trans-[PtII(4-Xpy)2Cl2] complexes applicable to 4-substituted pyridines (4-Xpy) with limited volatility and water solubility, properties typical of 4-Xpy, with X being a moiety targeting drug delivery. Treatment of cis-[PtII(DMSO)2Cl2] (DMSO = dimethyl sulfoxide) with 4-Xpy in acetonitrile allowed isolation of a new series of simple trans-[PtII(4-Xpy)2Cl2] complexes. A side product with very downfield H2/6 signals led to our synthesis of a series of new [PtII(4-Xpy)4]Cl2 salts. For both series in CDCl3, the size of the H2/6 Δδ [coordinated minus "free" 4-Xpy H2/6 shift] decreased as 4-Xpy donor ability increased from 4-CNpy to 4-Me2Npy. This finding can be attributed to the greater synergistic reduction in the inductive effect of the Pt(II) center with increased 4-Xpy donor ability. The high solubility of [PtII(4-Xpy)4]Cl2 salts in CDCl3 (a solvent with low polarity) and the very downfield shift of the [PtII(4-Xpy)4]Cl2 H2/6 signals for the solutions provide evidence for the presence of strong {[PtII(4-Xpy)4]2+,2Cl-} ion pairs that are stabilized by multiple CH···Cl contacts. This conclusion gains considerable support from [PtII(4-Xpy)4]Cl2 crystal structures revealing that a chloride anion occupies a pseudoaxial position with nonbonding (py)C-H···Cl contacts (2.4-3.0 Å). Evidence for (py)C-H···Y contacts was obtained in NMR studies of [PtII(4-Xpy)4]Y2 salts with Y counterions less capable of forming H-bonds than chloride ion. Our synthetic approaches and spectroscopic analysis are clearly applicable to other nonvolatile ligands.
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Affiliation(s)
- Nerissa A Lewis
- Department of Chemistry, Louisiana State University , Baton Rouge, Louisiana 70803, United States
| | - Svetlana Pakhomova
- Department of Chemistry, Louisiana State University , Baton Rouge, Louisiana 70803, United States
| | - Patricia A Marzilli
- Department of Chemistry, Louisiana State University , Baton Rouge, Louisiana 70803, United States
| | - Luigi G Marzilli
- Department of Chemistry, Louisiana State University , Baton Rouge, Louisiana 70803, United States
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16
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Coropceanu EB, Bulhac I, Shtefyrtse AA, Botnar’ VF, Melenchuk M, Kuligin E, Bourosh PN. Synthesis, crystal structure, and biological properties of the complex [Co(DmgH)2(Seu)1.4(Se-Seu)0.5(Se2)0.1][BF4]. RUSS J COORD CHEM+ 2017. [DOI: 10.1134/s1070328417030046] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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17
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Hoffmann R, Alvarez S, Mealli C, Falceto A, Cahill TJ, Zeng T, Manca G. From Widely Accepted Concepts in Coordination Chemistry to Inverted Ligand Fields. Chem Rev 2016; 116:8173-92. [DOI: 10.1021/acs.chemrev.6b00251] [Citation(s) in RCA: 110] [Impact Index Per Article: 13.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Roald Hoffmann
- Department
of Chemistry and Chemical Biology, Baker Laboratory, Cornell University, Ithaca, New York 14853, United States
| | - Santiago Alvarez
- Departament
de Química Inorgànica and Institut de Química
Teòrica i Computacional, Universitat de Barcelona, Martí
i Franquès 1, 08028 Barcelona, Spain
| | - Carlo Mealli
- Consiglio
Nazionale delle Ricerche, Istituto di Chimica dei Composti Organometallici (CNR-ICCOM), Via Madonna del Piano 10, 50019 Sesto Fiorentino (FI), Italy
| | - Andrés Falceto
- Departament
de Química Inorgànica and Institut de Química
Teòrica i Computacional, Universitat de Barcelona, Martí
i Franquès 1, 08028 Barcelona, Spain
| | - Thomas J. Cahill
- Department
of Biochemistry, Duke University, Durham, North Carolina 27710, United States
| | - Tao Zeng
- Department
of Chemistry, Carleton University, Ottawa, ON K1S5B6, Canada
| | - Gabriele Manca
- Consiglio
Nazionale delle Ricerche, Istituto di Chimica dei Composti Organometallici (CNR-ICCOM), Via Madonna del Piano 10, 50019 Sesto Fiorentino (FI), Italy
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18
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Spataru T, Fernandez F. The Nature of the Co-C Bond Cleavage Processes in Methylcob(II)Alamin and Adenosylcob(III)Alamin. CHEMISTRY JOURNAL OF MOLDOVA 2016. [DOI: 10.19261/cjm.2016.11(1).01] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022] Open
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19
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Mirra S, Strianese M, Pellecchia C, Bertolasi V, Monaco G, Milione S. Influence of coordinated ligands in a series of inorganic cobaloximes. Inorganica Chim Acta 2016. [DOI: 10.1016/j.ica.2016.01.040] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
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20
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Strianese M, Mirra S, Bertolasi V, Milione S, Pellecchia C. Organometallic sulfur complexes: reactivity of the hydrogen sulfide anion with cobaloximes. NEW J CHEM 2015. [DOI: 10.1039/c5nj00206k] [Citation(s) in RCA: 25] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
The hydrogen sulfide anion selectively and reversibly displaces pyridine in cobaloxime. A rare trisulfido-bridged dinuclear complex was isolated and characterized.
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Affiliation(s)
- Maria Strianese
- Dipartimento di Chimica
- Università di Salerno
- 132 I-84084 Fisciano
- Italy
| | - Silvia Mirra
- Dipartimento di Chimica
- Università di Salerno
- 132 I-84084 Fisciano
- Italy
| | - Valerio Bertolasi
- Università di Ferrara
- Dipartimento di Scienze Chimiche e Farmaceutiche
- Centro di Strutturistica Diffrattometrica
- I-44100 Ferrara
- Italy
| | - Stefano Milione
- Dipartimento di Chimica
- Università di Salerno
- 132 I-84084 Fisciano
- Italy
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21
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Lewis NA, Marzilli PA, Fronczek FR, Marzilli LG. Models for B12-conjugated radiopharmaceuticals. Cobaloxime binding to new fac-[Re(CO)3(Me2bipyridine)(amidine)]BF4 complexes having an exposed pyridyl nitrogen. Inorg Chem 2014; 53:11096-107. [PMID: 25285912 DOI: 10.1021/ic5016675] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
New mononuclear amidine complexes, fac-[Re(CO)3(Me2bipy)(HNC(CH3)(pyppz))]BF4 [(4,4'-Me2bipy (1), 5,5'-Me2bipy (2), and 6,6'-Me2bipy (3)] (bipy = 2,2'-bipyridine), were synthesized by treating the parent fac-[Re(I)(CO)3(Me2bipy)(CH3CN)]BF4 complex with the C2-symmetrical amine 1-(4-pyridyl)piperazine (pyppzH). The axial amidine ligand has an exposed, highly basic pyridyl nitrogen. The reaction of complexes 1-3 with a B12 model, (py)Co(DH)2Cl (DH = monoanion of dimethylglyoxime), in CH2Cl2 yielded the respective dinuclear complexes, namely, fac-[Re(CO)3(Me2bipy)(μ-(HNC(CH3)(pyppz)))Co(DH)2Cl]BF4 [(4,4'-Me2bipy (4), 5,5'-Me2bipy (5), and 6,6'-Me2bipy (6)]. (1)H NMR spectroscopic analysis of all compounds and single-crystal X-ray crystallographic data for 2, 3, 5, and 6 established that the amidine had only the E configuration in both the solid and solution states and that the pyridyl group is bound to Co in 4-6. Comparison of the NMR spectra of 1-3 with spectra of 4-6 reveals an unusually large "wrong-way" upfield shift for the pyridyl H2/6 signal for 4-6. The wrong-way H2/6 shift of (4-Xpy)Co(DH)2Cl (4-Xpy = 4-substituted pyridine) complexes increased with increasing basicity of the 4-Xpy derivative, a finding attributed to the influence of the magnetic anisotropy of the cobalt center on the shifts of the (1)H NMR signals of the pyridyl protons closest to Co. Our method of employing a coordinate bond for conjugating the fac-[Re(I)(CO)3] core to a vitamin B12 model could be extended to natural B12 derivatives. Because B12 compounds are known to accumulate in cancer cells, such an approach is a very attractive method for the development of (99m)Tc and (186/188)Re radiopharmaceuticals for targeted tumor imaging and therapy.
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Affiliation(s)
- Nerissa A Lewis
- Department of Chemistry, Louisiana State University , Baton Rouge, Louisiana 70803, United States
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22
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Synthesis, characterization, and X-ray crystal structure of cobalt(III) complexes with a N2O2-donor Schiff base and ancillary ligands. Spectral, antibacterial activity, and electrochemical studies. Polyhedron 2014. [DOI: 10.1016/j.poly.2014.05.049] [Citation(s) in RCA: 27] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
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23
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EPR and XANES studies of anaerobic photolysis of iso-propilpyridinecobaloxime: Elucidation of the reactivity of the Co(II) primary product. J Organomet Chem 2014. [DOI: 10.1016/j.jorganchem.2014.01.033] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
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24
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Synthesis and structure of new mononuclear octahedral cobalt(III) dioximates derived from isonicotinic hydrazide. J Mol Struct 2014. [DOI: 10.1016/j.molstruc.2014.01.084] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
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25
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Photolytic cleavage of Co–C bond: A mechanistic study for the formation of solvent coordinated cobalt(II) complex. J Organomet Chem 2014. [DOI: 10.1016/j.jorganchem.2013.09.010] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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26
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Rija A, Coropceanu E. The Study of Orientation of Axial Amino-Ligands in Some Co(III) Dioximates. CHEMISTRY JOURNAL OF MOLDOVA 2013. [DOI: 10.19261/cjm.2013.08(2).01] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022] Open
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27
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Bourosh PN, Coropceanu EB, Ciloci AA, Clapco SF, Bologa OA, Bivol CM, Tiurina JP, Bulhac I. New Co(III) dioximates with hexafluorophosphate ion as stimulators of the proteolytic activity of the micromycete Fusarium gibbosum CNMN FD 12. RUSS J COORD CHEM+ 2013. [DOI: 10.1134/s107032841311002x] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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28
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Perry CB, Shin N, Fernandes MA, Marques HM. Phenylvinylcobalamin: an alkenylcobalamin featuring a ligand with a large trans influence. Dalton Trans 2013; 42:7555-61. [PMID: 23532394 DOI: 10.1039/c3dt50336d] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Cob(I)alamin reacts with phenylacetylene to produce two diastereomers in which the organic ligand is coordinated to the upper (β) and lower (α) face of the corrin ring, respectively. The isomers were separated chromatographically and characterised by ESI-MS and, in the case of the β isomer, by (1)H and (13)C NMR. Only the β isomer crystallised and its molecular structure, determined by X-ray diffraction, shows that the organic ligand coordinates Co(III) through the β carbon of the phenylvinyl ligand. The Co-C bond length is 2.004(8) Å while the Co-N bond length to the trans 5,6-dimethylbenzimidazole (dmbzm) base is 2.217(8) Å, one of the longest Co-Ndmbzm bond lengths known in an organocobalamin. Unlike benzylcobalamin (BzCbl), phenylvinylcobalamin (PhVnCbl) is stable towards homolysis. DFT calculations (BP86/TZVP) on model compounds of BzCbl and PhVnCbl show that the Co-C bond dissociation energy for homolysis to Co(II) and an organic radical in the former is 8 kcal mol(-1) lower than in the latter. An analysis of the electron density at the Co-C bond critical point using Bader's QTAIM approach shows that the Co-C bond in PhVnCbl is shorter, stronger and somewhat more covalent than that in BzCbl, and has some multiple bond character. Together with calculations that show that the benzyl radical is more stable than the phenylvinyl radical, this rationalises the stability of PhVnCbl compared to BzCbl. The phenylvinyl ligand has a large trans influence. The pKa for deprotonation of dmbzm and its coordination by the metal in β-PhVnCbl is 4.60 ± 0.01, one of the highest values reported to date in cobalamin chemistry. The displacement of dmbzm ligand by CN(-) in β-PhVnCbl occurs with log K = 0.7 ± 0.1; the trans influence order of C-donor ligands is therefore CN(-) < CCH < CHCH2 = PhVn < Me < Et.
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Affiliation(s)
- Christopher B Perry
- Molecular Sciences Institute, School of Chemistry, University of the Witwatersrand, P.O. Wits, Johannesburg, 2050, South Africa.
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Rija A, Coropceanu E, Bologa O, Lozan V, Lipkowski J, Bulhac I, Bourosh P. Synthesis and structure of new thiourea-containing Cobalt(III) dioximates with the [TiF6]2− anion. RUSS J INORG CHEM+ 2013. [DOI: 10.1134/s0036023613040153] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
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Bartelmess J, Weare WW, Sommer RD. Synthesis, characterization and structural investigation of novel meso-pyridyl BODIPY–cobaloxime complexes. Dalton Trans 2013; 42:14883-91. [DOI: 10.1039/c3dt51849c] [Citation(s) in RCA: 28] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/29/2022]
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31
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Kumar S, Seidel RW. Ligand-bridged bicobaloximes synthesized by ligand replacement: Synthesis, structure and characterization. INORG CHEM COMMUN 2013. [DOI: 10.1016/j.inoche.2012.10.019] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
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32
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Barwiolek M, Szlyk E, Surdykowski A, Wojtczak A. New nickel(ii) and copper(ii) complexes with unsymmetrical Schiff bases derived from (1R,2R)(−)cyclohexanediamine and the application of Cu(ii) complexes for hybrid thin layers deposition. Dalton Trans 2013; 42:11476-87. [DOI: 10.1039/c3dt50213a] [Citation(s) in RCA: 32] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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Thermal Degradation Behaviour of Ni(II) Complex of 3,4-Methylenedioxaphenylaminoglyoxime. J CHEM-NY 2013. [DOI: 10.1155/2013/548067] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022] Open
Abstract
Thermal degradation behaviour of the Ni(II) complex of 3,4-methylenedioxaphenylaminoglyoxime was investigated by TG, DTA, and DTG at a heating rate of 10°C min−1under dinitrogen. The acquired experimental data shows that the complex is thermally stable up to 541 K. The pyrolytic decomposition process occurs by melting metal complex and metal oxide remains as final product. The energies of the reactions involved and the mechanism of decomposition at each stage have been examined. The values of kinetic parameters such as activation energy (E), preexponential factor (A) and thermodynamic parameters such as enthalpy (ΔH), entropy (ΔS), and Gibbs free energy (ΔG) are also evaluated.
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De March M, Demitri N, Geremia S, Hickey N, Randaccio L. Trans and cis influences and effects in cobalamins and in their simple models. J Inorg Biochem 2012; 116:215-27. [DOI: 10.1016/j.jinorgbio.2012.07.018] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/19/2012] [Revised: 07/03/2012] [Accepted: 07/19/2012] [Indexed: 11/16/2022]
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Habibi MH, Mikhak M. Synthesis, spectral, photolysis and electrochemical studies of mononuclear copper(II) complex with a new asymmetric tetradentate ligand: application as copper nanoparticle precursor. SPECTROCHIMICA ACTA. PART A, MOLECULAR AND BIOMOLECULAR SPECTROSCOPY 2012; 96:501-505. [PMID: 22728968 DOI: 10.1016/j.saa.2012.05.081] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/01/2012] [Revised: 05/21/2012] [Accepted: 05/29/2012] [Indexed: 06/01/2023]
Abstract
A copper(II) complex with asymmetric tetradentate Schiff base ligand, obtained by the single condensation of 1,2-diaminopropane with 2-hydroxy-5-methoxy benzaldehyde was prepared. The ligand and complex were characterized by their IR, UV-Vis, FT-IR, NMR spectra and CV. Crystal structures of the mononuclear copper complex have been obtained by X-ray diffraction studies which revealed to be distorted square planner coordination geometry. The spectral data confirm coordination of ligand to copper ion center. The redox properties of complex at different scan rates exhibit grossly similar features consisting of an electrochemically pseudo-reversible Cu(II)/Cu(I) reduction at ca. -0.97 V and pseudo-reversible Cu(I)/Cu(II) oxidation at ca. -0.81 V. The copper nanoparticles with average size of 73 nm were formed by thermal reduction of copper complex in the presence of triphenylphosphine.
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Erdem-Tuncmen M, Karipcin F. Synthesis and characterization of new organocobaloxime derivatives with asymmetric dioxime ligands. J INCL PHENOM MACRO 2012. [DOI: 10.1007/s10847-012-0220-y] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/28/2022]
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37
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Coropceanu EB, Rija AP, Lozan VI, Bologa OA, Boldisor AA, Bulhac II, Kravtsov VC, Bourosh PN. Synthesis and crystal structure of Co(III) dioximates with the complex anion [SbF6]−. RUSS J COORD CHEM+ 2012. [DOI: 10.1134/s1070328412070068] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
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Salehi M, Kia R, Khaleghian A. Syntheses, crystal structures, and antibacterial activities of two cobalt(III) complexes. J COORD CHEM 2012. [DOI: 10.1080/00958972.2012.708737] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/28/2022]
Affiliation(s)
- Mehdi Salehi
- a Department of Chemistry, Faculty of Science , Semnan University , Semnan , Iran
| | - Reza Kia
- b Department of Chemistry, Science and Research Branch , Islamic Azad University , Tehran , Iran
- c Structural Dynamics of (Bio)Chemical Systems , Max Planck Institute for Biophysical Chemistry , Am Fassberg 11, 37077, Göttingen , Germany
| | - Ali Khaleghian
- d Department of Biochemistry , Semnan University of Medical Science , Semnan , Iran
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Pyrazine bridged dicobaloximes with bis(thiophenyl)glyoxime and their molecular oxygen insertion. J Organomet Chem 2012. [DOI: 10.1016/j.jorganchem.2012.01.009] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/14/2022]
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Abstract
The density functional calculations suggest that the expansion of the corrin macrocycle's N(4) core by 0.06-0.10 Å leads to an appreciable lowering of 100-150 mV vs. saturated calomel electrode in the reduction potentials of two biologically important B(12) cofactors namely methylcobalamin and adenosylcobalamin respectively. This redox tuning of B(12) cofactors may encourage the electron transfer-based activation mechanism for B(12)-dependent enzymes.
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Affiliation(s)
- Manoj Kumar
- Department of Chemistry, University of Louisville, Louisville, Kentucky 40292, USA
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Kumar S, Thapa S. 4-[(4′-Chloromethyl-[1,1′-biphenyl]-4-yl)methyl]bis(dimethylglyoximato-κ 2N, N′)(pyridine-κ N)cobalt(III). Acta Crystallogr Sect E Struct Rep Online 2012; 68:m160-1. [PMID: 22346838 PMCID: PMC3274891 DOI: 10.1107/s1600536812001092] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/10/2011] [Accepted: 01/10/2012] [Indexed: 12/04/2022]
Abstract
The title compound, [Co(C14H14Cl)(C4H6N2O2)2(C5H5N)], is a model compound for the more complex cobalamines like vitamins B12. The CoIII atom is coordinated by a (4′-chloromethyl-[1,1′-biphenyl]-4-yl)methyl group, an N-bonded pyridine and two N,N′-bidentate dimethylglyoximate ligands in a distorted octahedral geometry. The glyoximate ligands exhibit intramolecular O—H⋯O hydrogen bonds, which is very common in cobaloxime derivatives.
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Marlier EE, Ulrich BA, McNeill K. Synthesis and Reactivity of an Isolable Cobalt(I) Complex Containing a β-Diketiminate-Based Acyclic Tetradentate Ligand. Inorg Chem 2012; 51:2079-85. [DOI: 10.1021/ic201780c] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Elodie E. Marlier
- Department of Chemistry, University of Minnesota, Minneapolis, Minnesota 55455, United States
| | - Bridget A. Ulrich
- Department of Chemistry, University of Minnesota, Minneapolis, Minnesota 55455, United States
| | - Kristopher McNeill
- Department of Chemistry, University of Minnesota, Minneapolis, Minnesota 55455, United States
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Prakash J, Kodanko JJ. Synthesis, Characterization, and Glutathionylation of Cobalamin Model Complexes [Co(N4PyCO2Me)Cl]Cl2 and [Co(Bn-CDPy3)Cl]Cl2. Inorg Chem 2012; 51:2689-98. [DOI: 10.1021/ic2026736] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
Affiliation(s)
- Jai Prakash
- Department of Chemistry, Wayne State University, 5101 Cass Avenue, Detroit,
Michigan 48202, United States
| | - Jeremy J. Kodanko
- Department of Chemistry, Wayne State University, 5101 Cass Avenue, Detroit,
Michigan 48202, United States
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Pang J, Li X, Morokuma K, Scrutton NS, Sutcliffe MJ. Large-Scale Domain Conformational Change Is Coupled to the Activation of the Co–C Bond in the B12-Dependent Enzyme Ornithine 4,5-Aminomutase: A Computational Study. J Am Chem Soc 2012; 134:2367-77. [DOI: 10.1021/ja210417k] [Citation(s) in RCA: 37] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/01/2023]
Affiliation(s)
| | - Xin Li
- Fukui Institute for Fundamental Chemistry, Kyoto University, Kyoto 606-8103, Japan
| | - Keiji Morokuma
- Fukui Institute for Fundamental Chemistry, Kyoto University, Kyoto 606-8103, Japan
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Kumar K, Gupta BD. Synthesis, characterization and structure–property relationship studies of cobaloximes with dithienylglyoxime as the equatorial ligand. J Organomet Chem 2011. [DOI: 10.1016/j.jorganchem.2011.08.035] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/17/2022]
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46
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Rija AP, Nicolescu A, Soran A, Coropceanu EB, Bulhac II, Bologa OA, Deleanu C, Bourosh PN. Cobalt(III) dimethylglyoximates containing selenourea and an unusual diselenourea ligand: Synthesis and structures. RUSS J COORD CHEM+ 2011. [DOI: 10.1134/s1070328411090077] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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47
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Kumar K, Gupta BD. Inorganic and organometallic cobaloximes with dioxime containing Se side chain: Synthesis, characterization and comparison with related B12 model compounds. J Organomet Chem 2011. [DOI: 10.1016/j.jorganchem.2011.07.012] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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48
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Kumar S, Gupta BD. Intriguing Two-Dimensional Assembly of Cobaloxime with a [Zn2(OOCR)4] Center. Inorg Chem 2011; 50:9207-9. [DOI: 10.1021/ic201435j] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Sarvendra Kumar
- DQIAQF/INQUIMAE, Universidad de Buenos Aires, Ciudad Universitaria, Pab. II, p. 3, EHA1428 Buenos Aires, Argentina
- Department of Chemistry, Indian Institute of Technology, Kanpur 208016, India
| | - B. D. Gupta
- Department of Chemistry, Indian Institute of Technology, Kanpur 208016, India
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49
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Cobaloximes with mixed dioximes having C and S side chains: Synthesis, structure and reactivity. J Organomet Chem 2011. [DOI: 10.1016/j.jorganchem.2011.02.033] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
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50
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Bourosh PN, Coropceanu EB, Rija AP, Bologa OA, Gdaniec M, Bulhac II. Structural evidence of [Rh(Thio)6]3+ and [Rh(Thio)5Cl]2+ cations in three novel ionic systems based on Co(III) dioximates. J Mol Struct 2011. [DOI: 10.1016/j.molstruc.2011.05.033] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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