1
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Syntheses, characterizations and structures of ruthenium carbene and allenylidene complexes supported by 1,4,7-trimethyl-1,4,7-triazacyclononane (Me3tacn) ligands. J Organomet Chem 2022. [DOI: 10.1016/j.jorganchem.2022.122429] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022]
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2
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Filevich O, Etchenique R. Photochemical biosignaling with ruthenium complexes. BIOMEDICAL APPLICATIONS OF INORGANIC PHOTOCHEMISTRY 2022. [DOI: 10.1016/bs.adioch.2022.04.001] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
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3
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Stepanenko I, Zalibera M, Schaniel D, Telser J, Arion V. Ruthenium-nitrosyl complexes as NO-releasing molecules and potential anticancer drugs. Dalton Trans 2022; 51:5367-5393. [DOI: 10.1039/d2dt00290f] [Citation(s) in RCA: 12] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
The synthesis of new types of mono- and polynuclear ruthenium nitrosyl complexes is driving progress in the field of NO generation for a variety of applications. Light-induced Ru-NO bond dissociation...
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4
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Stepanenko I, Mizetskyi P, Orlowska E, Bučinský L, Zalibera M, Vénosová B, Clémancey M, Blondin G, Rapta P, Novitchi G, Schrader W, Schaniel D, Chen YS, Lutz M, Kožíšek J, Telser J, Arion VB. The Ruthenium Nitrosyl Moiety in Clusters: Trinuclear Linear μ-Hydroxido Magnesium(II)-Diruthenium(II), μ 3-Oxido Trinuclear Diiron(III)-Ruthenium(II), and Tetranuclear μ 4-Oxido Trigallium(III)-Ruthenium(II) Complexes. Inorg Chem 2021; 61:950-967. [PMID: 34962391 PMCID: PMC8767547 DOI: 10.1021/acs.inorgchem.1c03011] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
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The ruthenium nitrosyl
moiety, {RuNO}6, is important
as a potential releasing agent of nitric oxide and is of inherent
interest in coordination chemistry. Typically, {RuNO}6 is
found in mononuclear complexes. Herein we describe the synthesis and
characterization of several multimetal cluster complexes that contain
this unit. Specifically, the heterotrinuclear μ3-oxido
clusters [Fe2RuCl4(μ3-O)(μ-OMe)(μ-pz)2(NO)(Hpz)2] (6) and [Fe2RuCl3(μ3-O)(μ-OMe)(μ-pz)3(MeOH)(NO)(Hpz)][Fe2RuCl3(μ3-O)(μ-OMe)(μ-pz)3(DMF)(NO)(Hpz)] (7·MeOH·2H2O) and the heterotetranuclear
μ4-oxido complex [Ga3RuCl3(μ4-O)(μ-OMe)3(μ-pz)4(NO)]
(8) were prepared from trans-[Ru(OH)(NO)(Hpz)4]Cl2 (5), which itself was prepared
via acidic hydrolysis of the linear heterotrinuclear complex {[Ru(μ-OH)(μ-pz)2(pz)(NO)(Hpz)]2Mg} (4). Complex 4 was synthesized from the mononuclear Ru complexes (H2pz)[trans-RuCl4(Hpz)2] (1), trans-[RuCl2(Hpz)4]Cl (2), and trans-[RuCl2(Hpz)4] (3). The new compounds 4–8 were all characterized by elemental
analysis, ESI mass spectrometry, IR, UV–vis, and 1H NMR spectroscopy, and single-crystal X-ray diffraction, with complexes 6 and 7 being characterized also by temperature-dependent
magnetic susceptibility measurements and Mössbauer spectroscopy.
Magnetometry indicated a strong antiferromagnetic interaction between
paramagnetic centers in 6 and 7. The ability
of 4 and 6–8 to form
linkage isomers and release NO upon irradiation in the solid state
was investigated by IR spectroscopy. A theoretical investigation of
the electronic structure of 6 by DFT and ab initio CASSCF/NEVPT2 calculations indicated a redox-noninnocent behavior
of the NO ancillary ligand in 6, which was also manifested
in TD-DFT calculations of its electronic absorption spectrum. The
electronic structure of 6 was also studied by an X-ray
charge density analysis. Mononuclear trans-[Ru(OH)NO(Hpz)4]2+ proved to
be a source of μ-hydroxido and μ3- and/or μ4-oxido bridging groups, which
could be incorporated into the heterotrinuclear complexes {[Ru(μ-OH)(μ-pz)2(pz)(NO)(Hpz)]2Mg}, [Fe2RuCl4(μ3-O)(μ-OMe)(μ-pz)2(NO)(Hpz)2], and [Fe2RuCl3(μ3-O)(μ-OMe)(μ-pz)3(MeOH)(NO)(Hpz)][Fe2RuCl3(μ3-O)(μ-OMe)(μ-pz)3(DMF)(NO)(Hpz)] (7·MeOH·2H2O) and the heterotetranuclear μ4-oxido complex [Ga3RuCl3(μ4-O)(μ-OMe)3(μ-pz)4(NO)]. The structures obtained were all confirmed
by SC-XRD, including an X-ray charge density analysis that revealed
the electronic structure of the RuFe2 cluster. Two of these nitrosyl
complexes underwent photoinduced isomerization with generation of
the nitrosyl linkage isomers MS1 and MS2, as revealed by IR spectroscopy
at 10 K.
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Affiliation(s)
- Iryna Stepanenko
- University of Vienna, Institute of Inorganic Chemistry, Währinger Strasse 42, A-1090 Vienna, Austria
| | - Pavlo Mizetskyi
- University of Vienna, Institute of Inorganic Chemistry, Währinger Strasse 42, A-1090 Vienna, Austria
| | - Ewelina Orlowska
- University of Vienna, Institute of Inorganic Chemistry, Währinger Strasse 42, A-1090 Vienna, Austria
| | - Lukáš Bučinský
- Institute of Physical Chemistry and Chemical Physics, Faculty of Chemical and Food Technology, Slovak University of Technology in Bratislava, Radlinského 9, SK-81237 Bratislava, Slovak Republic
| | - Michal Zalibera
- Institute of Physical Chemistry and Chemical Physics, Faculty of Chemical and Food Technology, Slovak University of Technology in Bratislava, Radlinského 9, SK-81237 Bratislava, Slovak Republic
| | - Barbora Vénosová
- Institute of Physical Chemistry and Chemical Physics, Faculty of Chemical and Food Technology, Slovak University of Technology in Bratislava, Radlinského 9, SK-81237 Bratislava, Slovak Republic.,Department of Physics, Faculty of Science, University of Ostrava, 30. dubna 22, 70103 Ostrava, Czech Republic
| | - Martin Clémancey
- Univ. Grenoble Alpes, CNRS, CEA, IRIG, LCBM, F-38000 Grenoble, France
| | - Geneviève Blondin
- Univ. Grenoble Alpes, CNRS, CEA, IRIG, LCBM, F-38000 Grenoble, France
| | - Peter Rapta
- Institute of Physical Chemistry and Chemical Physics, Faculty of Chemical and Food Technology, Slovak University of Technology in Bratislava, Radlinského 9, SK-81237 Bratislava, Slovak Republic
| | | | - Wolfgang Schrader
- MPI für Kohlenforschung, Kaiser-Wilhelm-Platz 1, 45470 Mülheim an der Ruhr, Germany
| | | | - Yu-Sheng Chen
- NSF's ChemMATCARS, The University of Chicago, Lemont, Illinois 60439, United States
| | - Martin Lutz
- Structural Biochemistry, Bijvoet Centre for Biomolecular Research, Utrecht University, 3584 CH Utrecht, The Netherlands
| | - Jozef Kožíšek
- Institute of Physical Chemistry and Chemical Physics, Faculty of Chemical and Food Technology, Slovak University of Technology in Bratislava, Radlinského 9, SK-81237 Bratislava, Slovak Republic
| | - Joshua Telser
- Department of Biological, Physical and Health Sciences, Roosevelt University, 430 South Michigan Avenue, Chicago, Illinois 60605, United States
| | - Vladimir B Arion
- University of Vienna, Institute of Inorganic Chemistry, Währinger Strasse 42, A-1090 Vienna, Austria
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5
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Perdoménico J, Levin N, Fierro AC, Cordero Chernek OA, Weyhermüller T, Slep LD. A New Member of the Growing Family of Interconvertible {RuNO}
6,7,8
Species. Redox and Acid‐Base Characterization of [Ru((CH
2
py)
2
Me[9]aneN
3
)(NO)]
n
+
. Eur J Inorg Chem 2021. [DOI: 10.1002/ejic.202100753] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Affiliation(s)
- Julián Perdoménico
- Departamento de Química Inorgánica, Analítica y Química Física Facultad de Ciencias Exactas y Naturales, and INQUIMAE Universidad de Buenos Aires-CONICET, Pabellón 2, 3er piso, Ciudad Universitaria C1428EHA Ciudad Autónoma de Buenos Aires Argentina
| | - Natalia Levin
- Departamento de Química Inorgánica, Analítica y Química Física Facultad de Ciencias Exactas y Naturales, and INQUIMAE Universidad de Buenos Aires-CONICET, Pabellón 2, 3er piso, Ciudad Universitaria C1428EHA Ciudad Autónoma de Buenos Aires Argentina
- Max-Planck-Institut für Chemische Energiekonversion Stiftstraße 34–36, 45470 Mülheim an der Ruhr Germany
| | - Anabella C. Fierro
- Departamento de Química Inorgánica, Analítica y Química Física Facultad de Ciencias Exactas y Naturales, and INQUIMAE Universidad de Buenos Aires-CONICET, Pabellón 2, 3er piso, Ciudad Universitaria C1428EHA Ciudad Autónoma de Buenos Aires Argentina
| | - Oswaldo A. Cordero Chernek
- Departamento de Química Inorgánica, Analítica y Química Física Facultad de Ciencias Exactas y Naturales, and INQUIMAE Universidad de Buenos Aires-CONICET, Pabellón 2, 3er piso, Ciudad Universitaria C1428EHA Ciudad Autónoma de Buenos Aires Argentina
| | - Thomas Weyhermüller
- Max-Planck-Institut für Chemische Energiekonversion Stiftstraße 34–36, 45470 Mülheim an der Ruhr Germany
| | - Leonardo D. Slep
- Departamento de Química Inorgánica, Analítica y Química Física Facultad de Ciencias Exactas y Naturales, and INQUIMAE Universidad de Buenos Aires-CONICET, Pabellón 2, 3er piso, Ciudad Universitaria C1428EHA Ciudad Autónoma de Buenos Aires Argentina
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6
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Perdoménico J, Ruiz MM, Osa Codesido N, De Candia AG, Marcolongo JP, Slep LD. Helpful correlations to estimate the pK a of coordinated HNO: a potential-pH exploration in a pendant-arm cyclam-based ruthenium nitroxyl. Dalton Trans 2021; 50:1641-1650. [PMID: 33449060 DOI: 10.1039/d0dt03552a] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/28/2022]
Abstract
The acid-base speciation of coordinated azanone (HNO) remains a highly relevant topic in bioinorganic chemistry. Ruthenium nitroxyl complexes with sufficient robustness towards ligand loss have gained significance as operating platforms to delve into such studies. In this work, we revisit an octahedral {RuNO}6 complex containing the cyclam-based pentadentate ligand Lpy = 1-(pyridine-2-ylmethyl)-1,4,8,11-tetraazacyclotetradecane and explore the thermodynamic and spectroscopic aspects of its reduced states in aqueous media. Upon in situ electro-generation of the bound HNO moiety, we have undertaken different strategies to determine both its acidity and electrochemical properties. This robust HNO complex does not undergo deprotonation in a wide pH range. We have found pKa ([Ru(Lpy)(HNO)]2+) = 13.0 ± 0.1 and . There are indications that pKa (HNO) values in several ruthenium-based species correlate with the redox potential associated with the {RuNO}6,7 and {RuNO}7,8 couples. The present pKa extends the range of acidity of bound HNO to more than five pH units, confirming a remarkable sensitivity to the nature of the coordination sphere. This result lays new foundations to continue rational ligand design that may contribute to a better understanding of the different biological roles of both HNO and NO- by investigating key chemical aspects of model complexes.
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Affiliation(s)
- Julián Perdoménico
- Departamento de Química Inorgánica, Analítica y Química Física, Facultad de Ciencias Exactas y Naturales, Universidad de Buenos Aires, Pabellón 2, Ciudad Universitaria, C1428EHA, Ciudad Autónoma de Buenos Aires, Argentina.
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7
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Qian BF, Wang JL, Jia AQ, Shi HT, Zhang QF. Syntheses, reactivity, structures and photocatalytic properties of mononuclear ruthenium(II) complexes supported by 1,4,7-trimethyl-1,4,7-triazacyclononane (Me3tacn) ligands. Inorganica Chim Acta 2021. [DOI: 10.1016/j.ica.2020.120128] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
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8
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Levin N, Marcolongo JP, Cadranel A, Slep LD. Time-Resolved Exploration of a photoCORM {Ru(bpy)} Model Compound. Inorg Chem 2020; 59:12075-12085. [DOI: 10.1021/acs.inorgchem.0c01025] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Natalia Levin
- Facultad de Ciencias Exactas y Naturales, Departamento de Quı́mica Inorgánica, Analı́tica y Quı́mica Fı́sica, Universidad de Buenos Aires, Pabellón 2, Ciudad Universitaria, C1428EHA Buenos Aires, Argentina
- Instituto de Quı́mica-Fı́sica de Materiales, Medio Ambiente y Energı́a, CONICET, Universidad de Buenos Aires, Pabellón 2, Ciudad Universitaria, C1428EHA Buenos Aires, Argentina
- Max Planck Institute for Chemical Energy Conversion, Stiftstr. 34−36, 45470 Mülheim an der Ruhr, Germany
| | - Juan Pablo Marcolongo
- Facultad de Ciencias Exactas y Naturales, Departamento de Quı́mica Inorgánica, Analı́tica y Quı́mica Fı́sica, Universidad de Buenos Aires, Pabellón 2, Ciudad Universitaria, C1428EHA Buenos Aires, Argentina
- Instituto de Quı́mica-Fı́sica de Materiales, Medio Ambiente y Energı́a, CONICET, Universidad de Buenos Aires, Pabellón 2, Ciudad Universitaria, C1428EHA Buenos Aires, Argentina
| | - Alejandro Cadranel
- Facultad de Ciencias Exactas y Naturales, Departamento de Quı́mica Inorgánica, Analı́tica y Quı́mica Fı́sica, Universidad de Buenos Aires, Pabellón 2, Ciudad Universitaria, C1428EHA Buenos Aires, Argentina
- Instituto de Quı́mica-Fı́sica de Materiales, Medio Ambiente y Energı́a, CONICET, Universidad de Buenos Aires, Pabellón 2, Ciudad Universitaria, C1428EHA Buenos Aires, Argentina
- Department of Chemistry and Pharmacy & Interdisciplinary Center for Molecular Materials, Friedrich-Alexander-Universität Erlangen-Nürnberg, Egerlandstrasse 3, 91058 Erlangen, Germany
| | - Leonardo Daniel Slep
- Facultad de Ciencias Exactas y Naturales, Departamento de Quı́mica Inorgánica, Analı́tica y Quı́mica Fı́sica, Universidad de Buenos Aires, Pabellón 2, Ciudad Universitaria, C1428EHA Buenos Aires, Argentina
- Instituto de Quı́mica-Fı́sica de Materiales, Medio Ambiente y Energı́a, CONICET, Universidad de Buenos Aires, Pabellón 2, Ciudad Universitaria, C1428EHA Buenos Aires, Argentina
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9
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da Silva ET, da Silva TU, de Carvalho Pougy K, da Silveira RB, da Silva RS, Machado SDP. A DFT study of cis-[Ru(NO)(NO2)bpy(dye)2]+ complexes as NO donors. Inorganica Chim Acta 2020. [DOI: 10.1016/j.ica.2020.119724] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/22/2023]
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10
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Levin N, Peredkov S, Weyhermüller T, Rüdiger O, Pereira NB, Grötzsch D, Kalinko A, DeBeer S. Ruthenium 4d-to-2p X-ray Emission Spectroscopy: A Simultaneous Probe of the Metal and the Bound Ligands. Inorg Chem 2020; 59:8272-8283. [PMID: 32390417 PMCID: PMC7298721 DOI: 10.1021/acs.inorgchem.0c00663] [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] [Indexed: 02/08/2023]
Abstract
![]()
Ruthenium 4d-to-2p
X-ray emission spectroscopy (XES) was systematically
explored for a series of Ru2+ and Ru3+ species.
Complementary density functional theory calculations were utilized
to allow for a detailed assignment of the experimental spectra. The
studied complexes have a range of different coordination spheres,
which allows the influence of the ligand donor/acceptor properties
on the spectra to be assessed. Similarly, the contributions of the
site symmetry and the oxidation state of the metal were analyzed.
Because the 4d-to-2p emission lines are dipole-allowed, the spectral
features are intense. Furthermore, in contrast with K- or L-edge X-ray
absorption of 4d transition metals, which probe the unoccupied levels,
the observed 4p-to-2p XES arises from electrons in filled-ligand-
and filled-metal-based orbitals, thus providing simultaneous access
to the ligand and metal contributions to bonding. As such, 4d-to-2p
XES should be a promising tool for the study of a wide range of 4d
transition-metal compounds. Ruthenium 4d-to-2p
XES was applied to a series of molecular
Ru complexes with varied coordination environment, oxidation state
and site symmetry. Through correlations to calculations, it is demonstrated
the Ru 4d-to-2p XES provides a unique probe of both the filled ligand np and filled metal 4d orbitals, providing a promising new
tool for the study of a wide range of 4d transition metals.
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Affiliation(s)
- Natalia Levin
- Max Planck Institute for Chemical Energy Conversion, Stiftstraße 34-36, 45470 Mülheim an der Ruhr, Germany
| | - Sergey Peredkov
- Max Planck Institute for Chemical Energy Conversion, Stiftstraße 34-36, 45470 Mülheim an der Ruhr, Germany
| | - Thomas Weyhermüller
- Max Planck Institute for Chemical Energy Conversion, Stiftstraße 34-36, 45470 Mülheim an der Ruhr, Germany
| | - Olaf Rüdiger
- Max Planck Institute for Chemical Energy Conversion, Stiftstraße 34-36, 45470 Mülheim an der Ruhr, Germany
| | - Nilson B Pereira
- Max Planck Institute for Chemical Energy Conversion, Stiftstraße 34-36, 45470 Mülheim an der Ruhr, Germany
| | - Daniel Grötzsch
- Institut für Optik und Atomare Physik (IOAP), TU-Berlin, Hardenbergstr. 36, 10623 Berlin, Germany
| | - Aleksandr Kalinko
- Universität Paderborn, Warburger Straße 100, 33098 Paderborn, Germany.,DESY Photon Science, Notkestrasse 85, 22603 Hamburg, Germany
| | - Serena DeBeer
- Max Planck Institute for Chemical Energy Conversion, Stiftstraße 34-36, 45470 Mülheim an der Ruhr, Germany
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11
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12
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Rojas Pérez Y, Slep LD, Etchenique R. Cis–Trans Interconversion in Ruthenium(II) Bipyridine Complexes. Inorg Chem 2019; 58:11606-11613. [DOI: 10.1021/acs.inorgchem.9b01485] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022]
Affiliation(s)
- Yeraldith Rojas Pérez
- Departamento de Química Inorgánica, Analítica y Química Física, INQUIMAE, Facultad de Ciencias Exactas y Naturales, Universidad de Buenos Aires, Pabellón 2, Ciudad Universitaria, C1428EHA Buenos Aires, Argentina
| | - Leonardo D. Slep
- Departamento de Química Inorgánica, Analítica y Química Física, INQUIMAE, Facultad de Ciencias Exactas y Naturales, Universidad de Buenos Aires, Pabellón 2, Ciudad Universitaria, C1428EHA Buenos Aires, Argentina
| | - Roberto Etchenique
- Departamento de Química Inorgánica, Analítica y Química Física, INQUIMAE, Facultad de Ciencias Exactas y Naturales, Universidad de Buenos Aires, Pabellón 2, Ciudad Universitaria, C1428EHA Buenos Aires, Argentina
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13
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Hsiao HY, Chung CW, Santos JH, Villaflores OB, Lu TT. Fe in biosynthesis, translocation, and signal transduction of NO: toward bioinorganic engineering of dinitrosyl iron complexes into NO-delivery scaffolds for tissue engineering. Dalton Trans 2019; 48:9431-9453. [DOI: 10.1039/c9dt00777f] [Citation(s) in RCA: 35] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Abstract
The ubiquitous physiology of nitric oxide enables the bioinorganic engineering of [Fe(NO)2]-containing and NO-delivery scaffolds for tissue engineering.
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Affiliation(s)
- Hui-Yi Hsiao
- Center for Tissue Engineering
- Chang Gung Memorial Hospital
- Taoyuan
- Taiwan
| | - Chieh-Wei Chung
- Institute of Biomedical Engineering
- National Tsing Hua University
- Hsinchu
- Taiwan
| | | | - Oliver B. Villaflores
- Department of Biochemistry
- Faculty of Pharmacy
- University of Santo Tomas
- Manila
- Philippines
| | - Tsai-Te Lu
- Institute of Biomedical Engineering
- National Tsing Hua University
- Hsinchu
- Taiwan
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14
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Levin N, Codesido NO, Marcolongo JP, Alborés P, Weyhermüller T, Olabe JA, Slep LD. Remarkable Changes of the Acidity of Bound Nitroxyl (HNO) in the [Ru(Me3[9]aneN3)(L2)(NO)]n+ Family (n = 1–3). Systematic Structural and Chemical Exploration and Bioinorganic Chemistry Implications. Inorg Chem 2018; 57:12270-12281. [DOI: 10.1021/acs.inorgchem.8b01958] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
Affiliation(s)
- Natalia Levin
- Departamento de Química Inorgánica, Analítica y Química Física, Facultad de Ciencias Exactas y Naturales, and INQUIMAE, Universidad de Buenos Aires, CONICET, Pabellón 2, 3er piso, Ciudad Universitaria, C1428EHA Ciudad Autónoma de Buenos Aires, Argentina
| | - Nicolás Osa Codesido
- Departamento de Química Inorgánica, Analítica y Química Física, Facultad de Ciencias Exactas y Naturales, and INQUIMAE, Universidad de Buenos Aires, CONICET, Pabellón 2, 3er piso, Ciudad Universitaria, C1428EHA Ciudad Autónoma de Buenos Aires, Argentina
| | - Juan Pablo Marcolongo
- Departamento de Química Inorgánica, Analítica y Química Física, Facultad de Ciencias Exactas y Naturales, and INQUIMAE, Universidad de Buenos Aires, CONICET, Pabellón 2, 3er piso, Ciudad Universitaria, C1428EHA Ciudad Autónoma de Buenos Aires, Argentina
| | - Pablo Alborés
- Departamento de Química Inorgánica, Analítica y Química Física, Facultad de Ciencias Exactas y Naturales, and INQUIMAE, Universidad de Buenos Aires, CONICET, Pabellón 2, 3er piso, Ciudad Universitaria, C1428EHA Ciudad Autónoma de Buenos Aires, Argentina
| | - Thomas Weyhermüller
- Max-Planck Institut für Chemische Energiekonversion, Stiftstraße 34−36, D-45470 Mülheim an der Ruhr, Germany
| | - José A. Olabe
- Departamento de Química Inorgánica, Analítica y Química Física, Facultad de Ciencias Exactas y Naturales, and INQUIMAE, Universidad de Buenos Aires, CONICET, Pabellón 2, 3er piso, Ciudad Universitaria, C1428EHA Ciudad Autónoma de Buenos Aires, Argentina
| | - Leonardo D. Slep
- Departamento de Química Inorgánica, Analítica y Química Física, Facultad de Ciencias Exactas y Naturales, and INQUIMAE, Universidad de Buenos Aires, CONICET, Pabellón 2, 3er piso, Ciudad Universitaria, C1428EHA Ciudad Autónoma de Buenos Aires, Argentina
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15
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Levin N, Perdoménico J, Bill E, Weyhermüller T, Slep LD. Pushing the photodelivery of nitric oxide to the visible: are {FeNO} 7 complexes good candidates? Dalton Trans 2017; 46:16058-16064. [PMID: 29119166 DOI: 10.1039/c7dt03142d] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
Abstract
Photodelivery of NO requires stable compounds which can be made reactive by irradiation with (visible) light. Traditional {MNO}6 complexes require a substantial ligand design to shift their absorption spectra to the appropriate region of the electromagnetic spectrum. [Fe((CH2Py2)2Me[9]aneN3)(NO)](BF4)2 is a new {FeNO}7 octahedral coordination compound, which is thermally and air-stable in solution. Illumination with a 450 nm light source induces significant photodetachment of the coordinated NO (ϕNO = 0.52 mol einstein-1), suggesting that {FeNO}7 compounds can be in fact suitable compounds for therapeutic NO-photorelease.
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Affiliation(s)
- Natalia Levin
- Departamento de Química Inorgánica, Analítica y Química Física, Facultad de Ciencias Exactas y Naturales, and INQUIMAE, Universidad de Buenos Aires - CONICET, Pabellón 2, 3er piso, Ciudad Universitaria, C1428EHA, Ciudad Autónoma de Buenos Aires, Argentina.
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16
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Carrone G, Pellegrino J, Doctorovich F. Rapid generation of HNO induced by visible light. Chem Commun (Camb) 2017; 53:5314-5317. [DOI: 10.1039/c7cc02186k] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
Abstract
The first method for HNO controlled generation induced by visible light using a pH-dependent HNO donor activated by a Ru complex is reported.
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Affiliation(s)
- G. Carrone
- Departamento de Química Inorgánica
- Analítica y Química Física
- INQUIMAE
- Facultad de Ciencias Exactas y Naturales
- Universidad de Buenos Aires
| | - J. Pellegrino
- Departamento de Química Inorgánica
- Analítica y Química Física
- INQUIMAE
- Facultad de Ciencias Exactas y Naturales
- Universidad de Buenos Aires
| | - F. Doctorovich
- Departamento de Química Inorgánica
- Analítica y Química Física
- INQUIMAE
- Facultad de Ciencias Exactas y Naturales
- Universidad de Buenos Aires
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17
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Marcolongo JP, Schmidt J, Levin N, Slep LD. A chemometric approach for determining the reaction quantum yields in consecutive photochemical processes. Phys Chem Chem Phys 2017; 19:21373-21381. [DOI: 10.1039/c7cp03619a] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Chemometrics helps in determining the quantum yields of multistep photoreactions and allows the deconvolution of the spectra of the colored intermediates.
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Affiliation(s)
- Juan P. Marcolongo
- Departamento de Química Inorgánica
- Analítica y Química Física
- Facultad de Ciencias Exactas y Naturales
- and INQUIMAE
- Universidad de Buenos Aires – CONICET
| | - Juan Schmidt
- Departamento de Química Inorgánica
- Analítica y Química Física
- Facultad de Ciencias Exactas y Naturales
- and INQUIMAE
- Universidad de Buenos Aires – CONICET
| | - Natalia Levin
- Departamento de Química Inorgánica
- Analítica y Química Física
- Facultad de Ciencias Exactas y Naturales
- and INQUIMAE
- Universidad de Buenos Aires – CONICET
| | - Leonardo D. Slep
- Departamento de Química Inorgánica
- Analítica y Química Física
- Facultad de Ciencias Exactas y Naturales
- and INQUIMAE
- Universidad de Buenos Aires – CONICET
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