1
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Hartman JD, Capistran D. Predicting 51V nuclear magnetic resonance observables in molecular crystals. MAGNETIC RESONANCE IN CHEMISTRY : MRC 2024; 62:416-428. [PMID: 38114304 DOI: 10.1002/mrc.5420] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/05/2023] [Revised: 11/26/2023] [Accepted: 11/28/2023] [Indexed: 12/21/2023]
Abstract
Solid-state nuclear magnetic resonance (NMR) spectroscopy and quantum chemical density functional theory (DFT) calculations are widely used to characterize vanadium centers in biological and pharmaceutically relevant compounds. Several techniques have been recently developed to improve the accuracy of predicted NMR parameters obtained from DFT. Fragment-based and planewave-corrected methods employing hybrid density functionals are particularly effective tools for solid-state applications. A recent benchmark study involving molecular crystal compounds found that fragment-based NMR calculations using hybrid density functionals improve the accuracy of predicted 51V chemical shieldings by 20% relative to traditional planewave methods. This work extends the previous study, including a careful analysis of 51V chemical shift anisotropy, electric field gradient calculations, and a more extensive test set. The accuracy of planewave-corrected techniques and recently developed fragment-based methods using electrostatic embedding based on the polarized continuum model (PCM) are found to be highly competitive with previous methods. Planewave-corrected methods achieve a 34% improvement in the errors of predicted 51V chemical shieldings relative to planewave. Additionally, planewave-corrected and fragment-based calculations were performed using PCM embedding, improving the accuracy of predicted 51V chemical shielding (CS) tensor principal values by 30% andC q values by 15% relative to traditional planewave methods. The performance of these methods is further examined using a redox-active oxovandium complex and a common 51V NMR reference compound.
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Affiliation(s)
- Joshua D Hartman
- Department of Chemistry, University of California, Riverside, Riverside, California, USA
| | - Daniel Capistran
- Department of Chemistry, University of California, Riverside, Riverside, California, USA
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2
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Iorhemba MA, Álvarez-Conde J, Díaz-García D, Méndez-Arriaga JM, García-Almodóvar V, Ovejero-Paredes K, Idris SO, Shallangwa GA, Abdulkadir I, Prashar S, Filice M, Gómez-Ruiz S. Vanadocene-functionalized mesoporous silica nanoparticles: platforms for the development of theranostic materials against breast cancer. Biomed Mater 2024; 19:035005. [PMID: 38387062 DOI: 10.1088/1748-605x/ad2c1c] [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: 09/29/2023] [Accepted: 02/22/2024] [Indexed: 02/24/2024]
Abstract
Nanoscale materials have demonstrated a very high potential in anticancer therapy by properly adjusting their functionalization and physicochemical properties. Herein, we report the synthesis of some novel vanadocene-loaded silica-based nanomaterials incorporating four different S-containing amino acids (penicillamine, methionine, captopril, and cysteine) and different fluorophores (rhodamine B, coumarin 343 or Alexa Fluor™ 647), which have been characterized by diverse solid-state spectroscopic techniques viz; FTIR, diffuse reflectance spectroscopies,13C and51V solid-state NMR spectroscopy, thermogravimetry and TEM. The analysis of the biological activity of the novel vanadocene-based nanostructured silicas showed that the materials containing cysteine and captopril aminoacids demonstrated high cytotoxicity and selectivity against triple negative breast cancer cells, making them very promising antineoplastic drug candidates. According to the biological results it seems that vanadium activity is connected to its incorporation through the amino acid, resulting in synergy that increases the cytotoxic activity against cancer cells of the studied materials presumably by increasing cell internalization. The results presented herein hold significant potential for future developments in mesoporous silica-supported metallodrugs, which exhibit strong cytotoxicity while maintaining low metal loading. They also show potential for theranostic applications highlighted by the analysis of the optical properties of the studied systems after incorporating rhodamine B, coumarin 343 (possible)in vitroanticancer analysis, or Alexa Fluor™ 647 (in vivostudies of cancer models).
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Affiliation(s)
- Michael Aondona Iorhemba
- COMET-NANO Group, Departamento de Biología y Geología, Física y Química Inorgánica, E.S.C.E.T., Universidad Rey Juan Carlos, Calle Tulipán s/n, E-28933 Móstoles, Madrid, Spain
- Department of Chemistry, Faculty of Physical Sciences, Ahmadu Bello University, P.M.B., 1045 Zaria, Kaduna State, Nigeria
- Department of Chemistry, College of Physical Sciences, Federal University of Agriculture, P.M.B., Makurdi, Benue, 2373, Nigeria
| | - Javier Álvarez-Conde
- COMET-NANO Group, Departamento de Biología y Geología, Física y Química Inorgánica, E.S.C.E.T., Universidad Rey Juan Carlos, Calle Tulipán s/n, E-28933 Móstoles, Madrid, Spain
| | - Diana Díaz-García
- COMET-NANO Group, Departamento de Biología y Geología, Física y Química Inorgánica, E.S.C.E.T., Universidad Rey Juan Carlos, Calle Tulipán s/n, E-28933 Móstoles, Madrid, Spain
| | - José Manuel Méndez-Arriaga
- COMET-NANO Group, Departamento de Biología y Geología, Física y Química Inorgánica, E.S.C.E.T., Universidad Rey Juan Carlos, Calle Tulipán s/n, E-28933 Móstoles, Madrid, Spain
| | - Victoria García-Almodóvar
- COMET-NANO Group, Departamento de Biología y Geología, Física y Química Inorgánica, E.S.C.E.T., Universidad Rey Juan Carlos, Calle Tulipán s/n, E-28933 Móstoles, Madrid, Spain
| | - Karina Ovejero-Paredes
- Nanobiotechnology for Life Sciences Group, Department of Chemistry in Pharmaceutical Sciences, Faculty of Pharmacy, Universidad Complutense de Madrid (UCM), Plaza Ramón y Cajal s/n, E-28040 Madrid, Spain
- Microscopy and Dynamic Imaging Unit. Fundación Centro Nacional de Investigaciones Cardiovasculares Carlos III (CNIC), Calle Melchor Fernández Almagro 3, E-28029 Madrid, Spain
| | - Sulaiman Ola Idris
- Department of Chemistry, Faculty of Physical Sciences, Ahmadu Bello University, P.M.B., 1045 Zaria, Kaduna State, Nigeria
| | - Gideon Adamu Shallangwa
- Department of Chemistry, Faculty of Physical Sciences, Ahmadu Bello University, P.M.B., 1045 Zaria, Kaduna State, Nigeria
| | - Ibrahim Abdulkadir
- Department of Chemistry, Faculty of Physical Sciences, Ahmadu Bello University, P.M.B., 1045 Zaria, Kaduna State, Nigeria
| | - Sanjiv Prashar
- COMET-NANO Group, Departamento de Biología y Geología, Física y Química Inorgánica, E.S.C.E.T., Universidad Rey Juan Carlos, Calle Tulipán s/n, E-28933 Móstoles, Madrid, Spain
| | - Marco Filice
- Nanobiotechnology for Life Sciences Group, Department of Chemistry in Pharmaceutical Sciences, Faculty of Pharmacy, Universidad Complutense de Madrid (UCM), Plaza Ramón y Cajal s/n, E-28040 Madrid, Spain
- Microscopy and Dynamic Imaging Unit. Fundación Centro Nacional de Investigaciones Cardiovasculares Carlos III (CNIC), Calle Melchor Fernández Almagro 3, E-28029 Madrid, Spain
| | - Santiago Gómez-Ruiz
- COMET-NANO Group, Departamento de Biología y Geología, Física y Química Inorgánica, E.S.C.E.T., Universidad Rey Juan Carlos, Calle Tulipán s/n, E-28933 Móstoles, Madrid, Spain
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3
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Mathews A, Hartman JD. Accurate fragment-based 51-V chemical shift predictions in molecular crystals. SOLID STATE NUCLEAR MAGNETIC RESONANCE 2021; 114:101733. [PMID: 34082261 DOI: 10.1016/j.ssnmr.2021.101733] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/21/2021] [Revised: 04/28/2021] [Accepted: 04/28/2021] [Indexed: 06/12/2023]
Abstract
Nuclear magnetic resonance (NMR) spectroscopy plays a crucial role in determining molecular structure for complex biological and pharmaceutical compounds. NMR investigations are increasingly reliant on computation for mapping spectral features to chemical structures. Here we benchmark the accuracy of fragment-based 51V chemical shielding tensor calculations using a training set comprised of 10 biologically and pharmaceutically relevant oxovanadium complexes. Using our self-consistent reproduction of the Madelung potential (SCRMP) electrostatic embedding model, we demonstrate comparable performance between fragment methods and computationally demanding cluster-based techniques. Specifically, fragment methods employing hybrid density functionals are capable of reproducing the experimental 51V isotropic chemical shifts with a training set rms error of ~9 ppm, representing a 20% improvement over traditional plane wave techniques. We provide training set-derived linear regression models for mapping the absolute shieldings obtained from computation to the experimentally determined chemical shifts using four common density functionals; PBE0, B3LYP, PBE, and BLYP. Finally, we establish the utility of fragment methods and the reported regression parameters examining four oxovanadium structures excluded from the training set including the tetracoordinate oxovanadium silicate [Formula: see text] , VO15NGlySalbz which contains redox-active ligands, and the solid-state form of the common 51V NMR reference compound VOCl3.
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Affiliation(s)
- Amanda Mathews
- Department of Chemistry, Mt. San Jacinto College, Menifee, CA, USA
| | - Joshua D Hartman
- Department of Chemistry, Mt. San Jacinto College, Menifee, CA, USA.
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4
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ATP Analogues for Structural Investigations: Case Studies of a DnaB Helicase and an ABC Transporter. Molecules 2020; 25:molecules25225268. [PMID: 33198135 PMCID: PMC7698047 DOI: 10.3390/molecules25225268] [Citation(s) in RCA: 18] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/17/2020] [Revised: 11/06/2020] [Accepted: 11/09/2020] [Indexed: 12/22/2022] Open
Abstract
Nucleoside triphosphates (NTPs) are used as chemical energy source in a variety of cell systems. Structural snapshots along the NTP hydrolysis reaction coordinate are typically obtained by adding stable, nonhydrolyzable adenosine triphosphate (ATP) -analogues to the proteins, with the goal to arrest a state that mimics as closely as possible a physiologically relevant state, e.g., the pre-hydrolytic, transition and post-hydrolytic states. We here present the lessons learned on two distinct ATPases on the best use and unexpected pitfalls observed for different analogues. The proteins investigated are the bacterial DnaB helicase from Helicobacter pylori and the multidrug ATP binding cassette (ABC) transporter BmrA from Bacillus subtilis, both belonging to the same division of P-loop fold NTPases. We review the magnetic-resonance strategies which can be of use to probe the binding of the ATP-mimics, and present carbon-13, phosphorus-31, and vanadium-51 solid-state nuclear magnetic resonance (NMR) spectra of the proteins or the bound molecules to unravel conformational and dynamic changes upon binding of the ATP-mimics. Electron paramagnetic resonance (EPR), and in particular W-band electron-electron double resonance (ELDOR)-detected NMR, is of complementary use to assess binding of vanadate. We discuss which analogues best mimic the different hydrolysis states for the DnaB helicase and the ABC transporter BmrA. These might be relevant also to structural and functional studies of other NTPases.
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5
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Rodriguez-Gomez A, Chowdhury AD, Caglayan M, Bau JA, Abou-Hamad E, Gascon J. Non-oxidative dehydrogenation of isobutane over supported vanadium oxide: nature of the active sites and coke formation. Catal Sci Technol 2020. [DOI: 10.1039/d0cy01174f] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
We combine Raman spectroscopy, EPR, XPS, temperature programmed reduction, XRD, 51V MAS ssNMR, TEM and N2-physisorption to unravel structure–activity relationships during the non-oxidative dehydrogenation of isobutane over a V based catalyst.
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Affiliation(s)
- Alberto Rodriguez-Gomez
- KAUST Catalysis Center (KCC)
- Advanced Catalytic Materials
- King Abdullah University of Science and Technology
- Thuwal 23955
- Saudi Arabia
| | - Abhishek Dutta Chowdhury
- KAUST Catalysis Center (KCC)
- Advanced Catalytic Materials
- King Abdullah University of Science and Technology
- Thuwal 23955
- Saudi Arabia
| | - Mustafa Caglayan
- KAUST Catalysis Center (KCC)
- Advanced Catalytic Materials
- King Abdullah University of Science and Technology
- Thuwal 23955
- Saudi Arabia
| | - Jeremy A. Bau
- KAUST Catalysis Center (KCC)
- Advanced Catalytic Materials
- King Abdullah University of Science and Technology
- Thuwal 23955
- Saudi Arabia
| | - Edy Abou-Hamad
- Core Labs
- King Abdullah University of Science and Technology
- Thuwal 23955
- Saudi Arabia
| | - Jorge Gascon
- KAUST Catalysis Center (KCC)
- Advanced Catalytic Materials
- King Abdullah University of Science and Technology
- Thuwal 23955
- Saudi Arabia
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6
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de Oliveira M, Seeburg D, Weiß J, Wohlrab S, Buntkowsky G, Bentrup U, Gutmann T. Structural characterization of vanadium environments in MCM-41 molecular sieve catalysts by solid state 51V NMR. Catal Sci Technol 2019. [DOI: 10.1039/c9cy01410a] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
Abstract
Advanced analysis of 51V NMR chemical shift and quadrupolar tensor parameters revealed novel insights into the structure of vanadium species in MCM-41-based catalysts.
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Affiliation(s)
- Marcos de Oliveira
- Institut für Physikalische Chemie
- Technische Universität Darmstadt
- 64287 Darmstadt
- Germany
| | - Dominik Seeburg
- Leibniz-Institut für Katalyse e. V. an der Universität Rostock (LIKAT)
- 18059 Rostock
- Germany
| | - Jana Weiß
- Leibniz-Institut für Katalyse e. V. an der Universität Rostock (LIKAT)
- 18059 Rostock
- Germany
| | - Sebastian Wohlrab
- Leibniz-Institut für Katalyse e. V. an der Universität Rostock (LIKAT)
- 18059 Rostock
- Germany
| | - Gerd Buntkowsky
- Institut für Physikalische Chemie
- Technische Universität Darmstadt
- 64287 Darmstadt
- Germany
| | - Ursula Bentrup
- Leibniz-Institut für Katalyse e. V. an der Universität Rostock (LIKAT)
- 18059 Rostock
- Germany
| | - Torsten Gutmann
- Institut für Physikalische Chemie
- Technische Universität Darmstadt
- 64287 Darmstadt
- Germany
- Institute of Chemistry and Center for Interdisciplinary Nanostructure Science and Technology
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7
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Mohammadnezhad G, Akintola O, Buchholz A, Görls H, Plass W. Probing the chirality of oxidovanadium( v) centers in complexes with tridentate sugar Schiff-base ligands: solid-state and solution behavior. NEW J CHEM 2019. [DOI: 10.1039/c9nj02881a] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Configurations of oxidovanadium centers in diastereomeric complexes with chiral sugar ligands are assigned and in the solid state triggered by the coordination number at the vanadium center through the steric requirements of the chelate ligand.
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Affiliation(s)
| | - Oluseun Akintola
- Institut für Anorganische und Analytische Chemie
- Friedrich-Schiller-Universität, Jena
- 07743 Jena
- Germany
| | - Axel Buchholz
- Institut für Anorganische und Analytische Chemie
- Friedrich-Schiller-Universität, Jena
- 07743 Jena
- Germany
| | - Helmar Görls
- Institut für Anorganische und Analytische Chemie
- Friedrich-Schiller-Universität, Jena
- 07743 Jena
- Germany
| | - Winfried Plass
- Institut für Anorganische und Analytische Chemie
- Friedrich-Schiller-Universität, Jena
- 07743 Jena
- Germany
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8
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Dragancea D, Talmaci N, Shova S, Novitchi G, Darvasiová D, Rapta P, Breza M, Galanski M, Kožı́šek J, Martins NMR, Martins LMDRS, Pombeiro AJL, Arion VB. Vanadium(V) Complexes with Substituted 1,5-bis(2-hydroxybenzaldehyde)carbohydrazones and Their Use As Catalyst Precursors in Oxidation of Cyclohexane. Inorg Chem 2016; 55:9187-203. [DOI: 10.1021/acs.inorgchem.6b01011] [Citation(s) in RCA: 40] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Diana Dragancea
- Institute of Chemistry, Academy of Sciences of Moldova, Academiei Str. 3, MD-2028 Chisinau, Moldova
| | - Natalia Talmaci
- Institute of Chemistry, Academy of Sciences of Moldova, Academiei Str. 3, MD-2028 Chisinau, Moldova
| | - Sergiu Shova
- “Petru Poni” Institute
of Macromolecular Chemistry, Aleea
Gr. Ghica Voda 41A, 700487 Iasi, Romania
| | - Ghenadie Novitchi
- Laboratoire National
des Champs Magnetiques Intenses-CNRS, Universite Joseph Fourier, 25 Avenue
des Martyrs, 38042 Grenoble Cedex 9, France
| | - Denisa Darvasiová
- Institute of Physical Chemistry
and Chemical Physics, Slovak University of Technology, Radlinského
9, 81237 Bratislava, Slovakia
| | - Peter Rapta
- Institute of Physical Chemistry
and Chemical Physics, Slovak University of Technology, Radlinského
9, 81237 Bratislava, Slovakia
| | - Martin Breza
- Institute of Physical Chemistry
and Chemical Physics, Slovak University of Technology, Radlinského
9, 81237 Bratislava, Slovakia
| | - Markus Galanski
- Institute of Inorganic Chemistry, University of Vienna, Währinger
Strasse 42, A-1090 Vienna, Austria
| | - Jozef Kožı́šek
- Institute of Physical Chemistry
and Chemical Physics, Slovak University of Technology, Radlinského
9, 81237 Bratislava, Slovakia
| | - Nuno M. R. Martins
- Centro de Química Estrutural, Complexo
I, Instituto Superior Técnico, Universidade de Lisboa, Av. Rovisco
Pais, 1049-001 Lisboa, Portugal
| | - Luísa M. D. R. S. Martins
- Centro de Química Estrutural, Complexo
I, Instituto Superior Técnico, Universidade de Lisboa, Av. Rovisco
Pais, 1049-001 Lisboa, Portugal
- Chemical Engineering Department, Instituto
Superior de Engenharia de Lisboa, Instituto Politécnico de Lisboa, R. Conselheiro Emídio Navarro, 1959-007 Lisboa, Portugal
| | - Armando J. L. Pombeiro
- Centro de Química Estrutural, Complexo
I, Instituto Superior Técnico, Universidade de Lisboa, Av. Rovisco
Pais, 1049-001 Lisboa, Portugal
| | - Vladimir B. Arion
- Institute of Inorganic Chemistry, University of Vienna, Währinger
Strasse 42, A-1090 Vienna, Austria
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9
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51V NMR, 17O NMR, and UV–Vis computational studies of new VBPO functional models: Bromide oxidation reaction. Polyhedron 2016. [DOI: 10.1016/j.poly.2016.02.006] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022]
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10
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Gupta R, Yehl J, Li M, Polenova T. 51V magic angle spinning NMR spectroscopy and quantum chemical calculations in vanadium bio-inorganic systems: current perspective. CAN J CHEM 2015. [DOI: 10.1139/cjc-2014-0557] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
Abstract
In recent years, 51V magic angle spinning (MAS) NMR spectroscopy has been widely used to characterize vanadium centers in biology, biomimetic complexes, and inorganic compounds of medicinal and industrial relevance. It has been demonstrated that 51V NMR parameters are sensitive probes of the coordination geometry and chemical environment of the metal center, beyond the first coordination sphere. To establish the relationships between NMR parameters and structure of the vanadium centers, over the past decade a large series of coordination complexes have been analyzed by MAS NMR spectroscopy. It has been demonstrated that the interpretation of the NMR parameters requires the use of theoretical methods, such as density functional (DFT) theory, whereby the experimental NMR observables are linked to the electronic and structural properties of a molecule. DFT calculations have been successfully employed to not only predict NMR parameters but to also yield valuable information regarding the structure and function of various vanadium compounds. In this report, we review the current state of the field, and present a survey of bioinorganic vanadium complexes as well as vanadium-dependent haloperoxidases analyzed using 51V MAS NMR spectroscopy and DFT calculations, to illustrate the rich information content available from such a combined approach.
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Affiliation(s)
- Rupal Gupta
- Department of Chemistry and Biochemistry, University of Delaware, Newark, DE 19716, USA
- Department of Chemistry and Biochemistry, University of Delaware, Newark, DE 19716, USA
| | - Jenna Yehl
- Department of Chemistry and Biochemistry, University of Delaware, Newark, DE 19716, USA
- Department of Chemistry and Biochemistry, University of Delaware, Newark, DE 19716, USA
| | - Mingyue Li
- Department of Chemistry and Biochemistry, University of Delaware, Newark, DE 19716, USA
- Department of Chemistry and Biochemistry, University of Delaware, Newark, DE 19716, USA
| | - Tatyana Polenova
- Department of Chemistry and Biochemistry, University of Delaware, Newark, DE 19716, USA
- Department of Chemistry and Biochemistry, University of Delaware, Newark, DE 19716, USA
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11
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Gupta R, Hou G, Renirie R, Wever R, Polenova T. 51V NMR Crystallography of Vanadium Chloroperoxidase and Its Directed Evolution P395D/L241V/T343A Mutant: Protonation Environments of the Active Site. J Am Chem Soc 2015; 137:5618-28. [DOI: 10.1021/jacs.5b02635] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/09/2023]
Affiliation(s)
- Rupal Gupta
- Department
of Chemistry and Biochemistry, University of Delaware, Newark, Delaware 19716, United States
| | - Guangjin Hou
- Department
of Chemistry and Biochemistry, University of Delaware, Newark, Delaware 19716, United States
| | - Rokus Renirie
- Van’t
Hoff Institute for Molecular Science, University of Amsterdam, POSTBUS
94157, 1090 GD, Amsterdam, The Netherlands
| | - Ron Wever
- Van’t
Hoff Institute for Molecular Science, University of Amsterdam, POSTBUS
94157, 1090 GD, Amsterdam, The Netherlands
| | - Tatyana Polenova
- Department
of Chemistry and Biochemistry, University of Delaware, Newark, Delaware 19716, United States
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12
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Pourpoint F, Yehl J, Li M, Gupta R, Trébosc J, Lafon O, Amoureux JP, Polenova T. NMR Crystallography of an Oxovanadium(V) Complex by an Approach Combining Multinuclear Magic Angle Spinning NMR, DFT, and Spin Dynamics Simulations. Chemphyschem 2015; 16:1619-26. [DOI: 10.1002/cphc.201500033] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/14/2015] [Indexed: 11/08/2022]
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13
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Li M, Yehl J, Hou G, Chatterjee PB, Goldbourt A, Crans DC, Polenova T. NMR Crystallography for Structural Characterization of Oxovanadium(V) Complexes: Deriving Coordination Geometry and Detecting Weakly Coordinated Ligands at Atomic Resolution in the Solid State. Inorg Chem 2015; 54:1363-74. [DOI: 10.1021/ic5022388] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Mingyue Li
- Department
of Chemistry and Biochemistry, University of Delaware, Newark, Delaware 19716, United States
| | - Jenna Yehl
- Department
of Chemistry and Biochemistry, University of Delaware, Newark, Delaware 19716, United States
| | - Guangjin Hou
- Department
of Chemistry and Biochemistry, University of Delaware, Newark, Delaware 19716, United States
| | - Pabitra B. Chatterjee
- Department
of Chemistry, Colorado State University, Fort Collins, Colorado 80523-1872, United States
| | - Amir Goldbourt
- School
of Chemistry, Tel Aviv University, Ramat Aviv 69978, Tel Aviv, Israel
| | - Debbie C. Crans
- Department
of Chemistry, Colorado State University, Fort Collins, Colorado 80523-1872, United States
| | - Tatyana Polenova
- Department
of Chemistry and Biochemistry, University of Delaware, Newark, Delaware 19716, United States
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14
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Vanadium complexes with side chain functionalized N-salicylidene hydrazides: Hydrogen-bonding relays as structural directive for supramolecular interactions. Inorganica Chim Acta 2014. [DOI: 10.1016/j.ica.2014.03.037] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
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15
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Goncharova-Zapata O, Chatterjee PB, Hou G, Quinn LL, Li M, Yehl J, Crans DC, Polenova T. Effect of Ancillary Ligand on Electronic Structure as Probed by 51V Solid-State NMR Spectroscopy for Vanadium- o-Dioxolene Complexes. CrystEngComm 2013; 15. [PMID: 24353476 DOI: 10.1039/c3ce41322e] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/12/2023]
Abstract
A series of vanadium(V) complexes with o-dioxolene (catecholato) ligands and an ancillary ligand, (N-(salicylideneaminato)ethylenediamine) (hensal), were investigated using 51V solid-state magic angle spinning NMR spectroscopy (51V MAS NMR) to assess the local environment of the vanadium(V). The solid-state 51V NMR parameters of vanadium(V) complexes with a related potentially tetradentate ancillary ligand (N-salicylidene-N'-(2-hydroxyethyl)ethylenediamine) (h2shed) were previously shown to be associated with the size of the HOMO-LUMO gap in the complex, and as such provide insights on the interaction between metal ion and ligand (P. B. Chatterjee, et al., Inorg. Chem 50 (2011) 9794). Our results show that the modification of the ancillary ligand does not impact the observed trend between complexes ranging from catechols with electron rich to electron poor substituents. However, the ancillary ligand does impact the size of the HOMO-LUMO separation in the parent complex and thus the solid-state vanadium NMR chemical shift of the unsubstituted vanadium complex. For these complexes significant changes observed in the isotropic shifts and more modest changes detected in the CQ reflect the electronic changes in the complex as the catechol is varied. However, no obvious trend was observed in the chemical shift anisotropies (δσ and ησ) with the variation in the catechol. The electronic changes in the coordination environment of the vanadium can be described using solid-state 51V NMR spectroscopy.
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Affiliation(s)
- Olga Goncharova-Zapata
- Department of Chemistry and Biochemistry, University of Delaware, Newark, DE 19716, USA. ; Tel. +1-302-831-1968
| | - Pabitra B Chatterjee
- Department of Chemistry, Colorado State University, Fort Collins, CO 80523-1872, USA. Tel. +1-970-491-7635
| | - Guangjin Hou
- Department of Chemistry and Biochemistry, University of Delaware, Newark, DE 19716, USA. ; Tel. +1-302-831-1968
| | - Laurence L Quinn
- Department of Chemistry and Biochemistry, University of Delaware, Newark, DE 19716, USA. ; Tel. +1-302-831-1968
| | - Mingyue Li
- Department of Chemistry and Biochemistry, University of Delaware, Newark, DE 19716, USA. ; Tel. +1-302-831-1968
| | - Jenna Yehl
- Department of Chemistry and Biochemistry, University of Delaware, Newark, DE 19716, USA. ; Tel. +1-302-831-1968
| | - Debbie C Crans
- Department of Chemistry and Biochemistry, University of Delaware, Newark, DE 19716, USA. ; Tel. +1-302-831-1968
| | - Tatyana Polenova
- Department of Chemistry and Biochemistry, University of Delaware, Newark, DE 19716, USA. ; Tel. +1-302-831-1968
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Chatterjee PB, Goncharov-Zapata O, Hou G, Dmitrenko O, Polenova T, Crans DC. Redox Activity in a Vanadium(V)-o-Dioxolene Complex Is Modulated by Protonation State As Indicated by51V Solid-State NMR Spectroscopy and Density Functional Theory. Eur J Inorg Chem 2012. [DOI: 10.1002/ejic.201200259] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
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Leus K, Vandichel M, Liu YY, Muylaert I, Musschoot J, Pyl S, Vrielinck H, Callens F, Marin GB, Detavernier C, Wiper PV, Khimyak YZ, Waroquier M, Van Speybroeck V, Van Der Voort P. The coordinatively saturated vanadium MIL-47 as a low leaching heterogeneous catalyst in the oxidation of cyclohexene. J Catal 2012. [DOI: 10.1016/j.jcat.2011.09.014] [Citation(s) in RCA: 83] [Impact Index Per Article: 6.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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Plass W. Chiral and supramolecular model complexes for vanadium haloperoxidases: Host–guest systems and hydrogen bonding relays for vanadate species. Coord Chem Rev 2011. [DOI: 10.1016/j.ccr.2011.04.014] [Citation(s) in RCA: 48] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
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Fenn A, Wächtler M, Breitzke H, Buchholz A, Lippold I, Plass W, Buntkowsky G. A simple method for analyzing 51V solid-state NMR spectra of complex systems. SOLID STATE NUCLEAR MAGNETIC RESONANCE 2011; 40:60-65. [PMID: 21601435 DOI: 10.1016/j.ssnmr.2011.05.001] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/09/2010] [Revised: 02/14/2011] [Accepted: 05/03/2011] [Indexed: 05/30/2023]
Abstract
Five vanadium complexes as models for biological systems were investigated using (51)V-MAS-NMR spectroscopy. All spectra show an uncommon line shape, which can be attributed to a shorter relaxation time of the satellite transition in contrast to the central one. A method for the reliable analysis of such kind of spectra is presented for the first time and the most important NMR parameters of the investigated complexes (quadrupolar coupling constant C(Q), asymmetry of the EFG tensor η(Q), isotropic chemical shift δ(iso), chemical shift anisotropy δ(σ) and asymmetry of the CSA tensor η(σ)) are presented. These results are of particular importance with respect to the analysis of the (51)V-MAS-NMR spectra of vanadium moieties in biological matrices such as vanadium chloroperoxidase, which show hitherto unexplained low intensity of the satellite sideband pattern.
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Affiliation(s)
- Annika Fenn
- Institut für Physikalische Chemie, Friedrich-Schiller-Universität Jena, Jena, Germany
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Chatterjee PB, Goncharov-Zapata O, Quinn LL, Hou G, Hamaed H, Schurko RW, Polenova T, Crans DC. Characterization of noninnocent metal complexes using solid-state NMR spectroscopy: o-dioxolene vanadium complexes. Inorg Chem 2011; 50:9794-803. [PMID: 21842875 DOI: 10.1021/ic200046k] [Citation(s) in RCA: 34] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
(51)V solid-state NMR (SSNMR) studies of a series of noninnocent vanadium(V) catechol complexes have been conducted to evaluate the possibility that (51)V NMR observables, quadrupolar and chemical shift anisotropies, and electronic structures of such compounds can be used to characterize these compounds. The vanadium(V) catechol complexes described in these studies have relatively small quadrupolar coupling constants, which cover a surprisingly small range from 3.4 to 4.2 MHz. On the other hand, isotropic (51)V NMR chemical shifts cover a wide range from -200 to 400 ppm in solution and from -219 to 530 ppm in the solid state. A linear correlation of (51)V NMR isotropic solution and solid-state chemical shifts of complexes containing noninnocent ligands is observed. These experimental results provide the information needed for the application of (51)V SSNMR spectroscopy in characterizing the electronic properties of a wide variety of vanadium-containing systems and, in particular, those containing noninnocent ligands and that have chemical shifts outside the populated range of -300 to -700 ppm. The studies presented in this report demonstrate that the small quadrupolar couplings covering a narrow range of values reflect the symmetric electronic charge distribution, which is also similar across these complexes. These quadrupolar interaction parameters alone are not sufficient to capture the rich electronic structure of these complexes. In contrast, the chemical shift anisotropy tensor elements accessible from (51)V SSNMR experiments are a highly sensitive probe of subtle differences in electronic distribution and orbital occupancy in these compounds. Quantum chemical (density functional theory) calculations of NMR parameters for [VO(hshed)(Cat)] yield a (51)V chemical shift anisotropy tensor in reasonable agreement with the experimental results, but surprisingly the calculated quadrupolar coupling constant is significantly greater than the experimental value. The studies demonstrate that substitution of the catechol ligand with electron-donating groups results in an increase in the HOMO-LUMO gap and can be directly followed by an upfield shift for the vanadium catechol complex. In contrast, substitution of the catechol ligand with electron-withdrawing groups results in a decrease in the HOMO-LUMO gap and can directly be followed by a downfield shift for the complex. The vanadium catechol complexes were used in this work because (51)V is a half-integer quadrupolar nucleus whose NMR observables are highly sensitive to the local environment. However, the results are general and could be extended to other redox-active complexes that exhibit coordination chemistry similar to that of the vanadium catechol complexes.
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Affiliation(s)
- Pabitra B Chatterjee
- Department of Chemistry, Colorado State University, Fort Collins, Colorado 80523-1872, USA
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Multinuclear nuclear magnetic resonance and density functional theoretical studies on the structure of bisperoxovanadium complexes with bidentate donors. Inorganica Chim Acta 2011. [DOI: 10.1016/j.ica.2010.08.036] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
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