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Shakouri S, Abouzari‐Lotf E, Chen J, Diemant T, Klyatskaya S, Pammer FD, Mizuno A, Fichtner M, Ruben M. Molecular Engineering of Metalloporphyrins for High-Performance Energy Storage: Central Metal Matters. CHEMSUSCHEM 2023; 16:e202202090. [PMID: 36445802 PMCID: PMC10107660 DOI: 10.1002/cssc.202202090] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 11/09/2022] [Revised: 11/24/2022] [Indexed: 06/16/2023]
Abstract
Porphyrin derivatives represent an emerging class of redox-active materials for sustainable electrochemical energy storage. However, their structure-performance relationship is poorly understood, which confines their rational design and thus limits access to their full potential. To gain such understanding, we here focus on the role of the metal ion within porphyrin molecules. The A2 B2 -type porphyrin 5,15-bis(ethynyl)-10,20-diphenylporphyrin and its first-row transition metal complexes from Co to Zn are used as models to investigate the relationships between structure and electrochemical performance. It turned out that the choice of central metal atom has a profound influence on the practical voltage window and discharge capacity. The results of DFT calculations suggest that the choice of central metal atom triggers the degree of planarity of the porphyrin. Single crystal diffraction studies illustrate the consequences on the intramolecular rearrangement and packing of metalloporphyrins. Besides the direct effect of the metal choice on the undesired solubility, efficient packing and crystallinity are found to dictate the rate capability and the ion diffusion along with the porosity. Such findings open up a vast space of compositions and morphologies to accelerate the practical application of resource-friendly cathode materials to satisfy the rapidly increasing need for efficient electrical energy storage.
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Affiliation(s)
- Shirin Shakouri
- Institute of NanotechnologyKarlsruhe Institute of TechnologyP.O. Box 364076021KarlsruheGermany
| | - Ebrahim Abouzari‐Lotf
- Institute of NanotechnologyKarlsruhe Institute of TechnologyP.O. Box 364076021KarlsruheGermany
- Helmholtz Institute Ulm (HIU) Electrochemical Energy StorageHelmholtzstraße 11Ulm89081Germany
| | - Jie Chen
- Helmholtz Institute Ulm (HIU) Electrochemical Energy StorageHelmholtzstraße 11Ulm89081Germany
| | - Thomas Diemant
- Helmholtz Institute Ulm (HIU) Electrochemical Energy StorageHelmholtzstraße 11Ulm89081Germany
| | - Svetlana Klyatskaya
- Institute of NanotechnologyKarlsruhe Institute of TechnologyP.O. Box 364076021KarlsruheGermany
| | - Frank Dieter Pammer
- Helmholtz Institute Ulm (HIU) Electrochemical Energy StorageHelmholtzstraße 11Ulm89081Germany
| | - Asato Mizuno
- Institute of NanotechnologyKarlsruhe Institute of TechnologyP.O. Box 364076021KarlsruheGermany
| | - Maximilian Fichtner
- Institute of NanotechnologyKarlsruhe Institute of TechnologyP.O. Box 364076021KarlsruheGermany
- Helmholtz Institute Ulm (HIU) Electrochemical Energy StorageHelmholtzstraße 11Ulm89081Germany
| | - Mario Ruben
- Institute of NanotechnologyKarlsruhe Institute of TechnologyP.O. Box 364076021KarlsruheGermany
- Institute for Quantum Materials and Technologies (IQMT)Karlsruhe Institute of TechnologyP.O. Box 364076021KarlsruheGermany
- Centre Européen de Science Quantique (CESQ)Institut de Science et d'Ingénierie Supramoléculaires (ISIS)Université de Strasbourg8, Allée Gaspard Monge67000StrasbourgFrance
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Benavides PA, Gordillo MA, Yadav A, Joaqui-Joaqui MA, Saha S. Pt(ii)-coordinated tricomponent self-assemblies of tetrapyridyl porphyrin and dicarboxylate ligands: are they 3D prisms or 2D bow-ties? Chem Sci 2022; 13:4070-4081. [PMID: 35440981 PMCID: PMC8985580 DOI: 10.1039/d1sc06533e] [Citation(s) in RCA: 8] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/23/2021] [Accepted: 02/22/2022] [Indexed: 12/24/2022] Open
Abstract
Thermodynamically favored simultaneous coordination of Pt(ii) corners with aza- and carboxylate ligands yields tricomponent coordination complexes with sophisticated structures and functions, which require careful structural characterization to paint accurate depiction of their structure-function relationships. Previous reports claimed that heteroleptic coordination of cis-(Et3P)2PtII with tetrapyridyl porphyrins (M'TPP, M' = Zn or H2) and dicarboxylate ligands (XDC) yielded 3D tetragonal prisms containing two horizontal M'TPP faces and four vertical XDC pillars connected by eight Pt(ii) corners, even though such structures were not supported by their 1H NMR data. Through extensive X-ray crystallographic and NMR studies, herein, we demonstrate that self-assembly of cis-(Et3P)2PtII, M'TPP, and four different XDC linkers having varied lengths and rigidities actually yields bow-tie (⋈)-shaped 2D [{cis-(Et3P)2Pt}4(M'TPP) (XDC)2]4+ complexes featuring a M'TPP core and two parallel XDC linkers connected by four heteroleptic PtII corners instead of 3D prisms. This happened because (i) irrespective of their length (∼7-11 Å) and rigidity, the XDC linkers intramolecularly bridged two adjacent pyridyl-N atoms of a M'TPP core via PtII corners instead of connecting two cofacial M'TPP ligands and (ii) bow-tie complexes are entropically favored over prisms. The electron-rich ZnTPP core of a representative bow-tie complex selectively formed a charge-transfer complex with highly π-acidic 1,4,5,8,9,12-hexaazatriphenylene-2,3,6,7,10,11-heaxacarbonitrile but not with a π-donor such as pyrene. Thus, this work not only produced novel M'TPP-based bow-tie complexes and demonstrated their selective π-acid recognition capability, but also underscored the importance of proper structural characterization of supramolecular assemblies to ensure accurate depiction of their structure-property relationships.
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Affiliation(s)
- Paola A Benavides
- Department of Chemistry, Clemson University Clemson South Carolina 29634 USA
| | - Monica A Gordillo
- Department of Chemistry, Clemson University Clemson South Carolina 29634 USA
| | - Ashok Yadav
- Department of Chemistry, Clemson University Clemson South Carolina 29634 USA
| | | | - Sourav Saha
- Department of Chemistry, Clemson University Clemson South Carolina 29634 USA
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Alves KM, Honorato J, Lião LM, Velozo-Sa VS, Guedes APM, Dutra JDL, Ayalla AP, Ellena J, Batista AA, Gonçalves PJ. meso-Tetra-(4-pyridyl)porphyrin/palladium(II) complexes as anticancer agents. Dalton Trans 2021; 50:16254-16264. [PMID: 34730147 DOI: 10.1039/d1dt01850g] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
This study reports the synthesis, structural characterization and cytotoxic activity of four new palladium/pyridylporphyrin complexes, with the general formula {TPyP[PdCl(P-P)]4}(PF6)4, where P-P is 1,2-bis(diphenylphosphino)ethane (dppe), 1,3-bis(diphenylphosphino)propane (dppp), 1,2-bis(diphenylphosphino)butane (dppb) or 1,1'-bis(diphenylphosphino)ferrocene (dppf). The complexes were characterized by elemental analysis, and by FT-IR, UV/Vis, 1H and 31P{1H} NMR (1D/2D) spectroscopy. The slow evaporation of a methanolic solution of {TPyP[PdCl(dppb)]4}(PF6)4 (in an excess of NaBF4 salt) resulted in single crystals suitable for X ray diffraction, allowing the determination of the tridimensional structure of this complex, which crystallized in the P21/a space group. The cytotoxicity of the complexes against MDA-MB-231 (breast cancer cells) and MCF-10A (non-tumor breast cancer cells), was determined by the colorimetric MTT method, which revealed that all four complexes show selective indexes close to 1.2, lower than that of cisplatin for the same cells (12.12). The interaction of the complexes with CT-DNA was evaluated by UV-visible and viscosity measurements and it was determined that the complexes interact moderately with CT-DNA, probably by H-bonding/π-π stacking and electrostatic interactions.
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Affiliation(s)
- Kamilla M Alves
- Institute of Chemistry, Federal University of Goiás, Goiânia - GO, Brazil.
| | - João Honorato
- Department of Chemistry, Federal University of São Carlos, São Carlos - SP, Brazil. .,São Carlos Institute of Physics, University of São Paulo, São Carlos - SP, Brazil
| | - Luciano M Lião
- Institute of Chemistry, Federal University of Goiás, Goiânia - GO, Brazil.
| | - Vivianne S Velozo-Sa
- Institute of Biological Sciences, Federal University of Goiás, Goiânia - GO, Brazil
| | - Adriana P M Guedes
- Department of Chemistry, Federal University of São Carlos, São Carlos - SP, Brazil.
| | - Jocely de L Dutra
- Department of Chemistry, Federal University of São Carlos, São Carlos - SP, Brazil.
| | | | - Javier Ellena
- São Carlos Institute of Physics, University of São Paulo, São Carlos - SP, Brazil
| | - Alzir A Batista
- Institute of Chemistry, Federal University of Goiás, Goiânia - GO, Brazil. .,Department of Chemistry, Federal University of São Carlos, São Carlos - SP, Brazil.
| | - Pablo J Gonçalves
- Institute of Chemistry, Federal University of Goiás, Goiânia - GO, Brazil. .,Institute of Physics, Federal University of Goiás, Goiânia - GO, Brazil.
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Maikoo S, Booysen IN, Xulu B, Rhyman L, Ramasami P. Stabilization of the ruthenium (II) and -(III) centres by chelating N-donor ligands: Synthesis, characterization, biomolecular affinities and computational studies. J Mol Struct 2021. [DOI: 10.1016/j.molstruc.2021.130986] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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Leite THO, Grawe G, Honorato J, Cunha BN, Nascimento OR, de Vargas PS, Donatoni C, Oliveira KT, Lopes JMS, Barbosa Neto NM, Moreira WC, Dinelli LR, Batista AA. Remarkable Electronic Effect on the meso-Tetra(thienyl)porphyrins. Inorg Chem 2019; 58:1030-1039. [PMID: 30605327 DOI: 10.1021/acs.inorgchem.8b01032] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
Abstract
Complexes derived from meso-tetra(thienyl)porphyrins (TThP) and meso-tetra(pyridyl)porphyrin (TPyP) containing peripheral ruthenium complexes with general formulas {TPyP[RuCl(dppb)(5,5'-Mebipy)]4}(PF6)4, {TThP[RuCl(dppb)(5,5'-Mebipy)]4}(PF6)4, and {TThP-me-[RuCl(dppb)(5,5'-Mebipy)]4}(PF6)4 [5,5'-Mebipy = 5,5'-dimethyl-2,2'-bipyridine and dppb = 1,4-bis(diphenylphosphino)butane] were synthesized and characterized by spectroscopy techniques (1H- and 31P{1H}-NMR, IR, UV/vis, fluorescence, and electron paramagnetic resonance (EPR)), cyclic voltammetry, coulometry, molar conductivity, and elemental analysis. Voltammetry and UV/vis studies demonstrated differentiated electronic properties for ruthenium appended with TThP and TThP-me when compared to ruthenium appended with TPyP. The UV/vis analysis for the ruthenium complex derived from TThP and TThP-me, as well as the Soret and Q bands, characteristics of porphyrins, showed a band at 700 nm referring to the Ru → S electronic transition, and porphyrin TThP-me showed another band at 475 nm from the Ru-N transition. The attribution of these bands was confirmed by spectroelectrochemical analysis. Cyclic voltammetry analysis for the ruthenium complex derived from TPyP exhibited only an electrochemical process with E1/2 = 0.47 V assigned to the Ru(II)/Ru(III) redox pair (Fc/Fc+). On the other hand, two processes were observed for the ruthenium complexes derived from TThP and TThP-me, with E1/2 around 0.17 and 0.47 V, which were attributed to the formation of a mixed valence tetranuclear species containing Ru(II) and Ru(III) ions, showing that the peripheral groups are not oxidized at the same potential. Fluorescence spectroscopic experiments show the existence of a mixed state of emission in the supramolecular porphyrin moieties. The results suggest the formation of Ru(II)-Ru(III) mixed valence complexes when oxidation potential was applied around 0.17 V in the {TThP[RuCl(dppb)(5,5'-Mebipy)]4}(PF6)4 and {TThP-me-[RuCl(dppb)(5,5'-Mebipy)]4}(PF6)4 species.
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Affiliation(s)
- Taíse H O Leite
- Departamento de Química , Universidade Federal de São Carlos , CP 676, CEP 13565-905 , São Carlos , São Paulo , Brazil
| | - Gregory Grawe
- Departamento de Química , Universidade Federal de São Carlos , CP 676, CEP 13565-905 , São Carlos , São Paulo , Brazil
| | - João Honorato
- Departamento de Química , Universidade Federal de São Carlos , CP 676, CEP 13565-905 , São Carlos , São Paulo , Brazil
| | - Beatriz N Cunha
- Departamento de Química , Universidade Federal de São Carlos , CP 676, CEP 13565-905 , São Carlos , São Paulo , Brazil.,Instituto Federal Goiano, Campus Ceres, Rodovia GO-154 KM 03, CP 51, 76300-000 , Ceres , Goiás , Brazil
| | - Otaciro R Nascimento
- Instituto de Física de São Carlos , Universidade de São Paulo , CP 369, CEP 13560-970 , São Carlos , São Paulo , Brazil
| | - Pamela S de Vargas
- Departamento de Química , Universidade Federal de São Carlos , CP 676, CEP 13565-905 , São Carlos , São Paulo , Brazil
| | - Carolina Donatoni
- Departamento de Química , Universidade Federal de São Carlos , CP 676, CEP 13565-905 , São Carlos , São Paulo , Brazil
| | - Kleber T Oliveira
- Departamento de Química , Universidade Federal de São Carlos , CP 676, CEP 13565-905 , São Carlos , São Paulo , Brazil
| | - Jefferson M S Lopes
- Instituto de Ciências Exatas e Naturais, Programa de Pós-graduação em Física , Universidade Federal do Pará , CEP 66075-110 , Belém , Pará , Brazil
| | - Newton M Barbosa Neto
- Instituto de Ciências Exatas e Naturais, Programa de Pós-graduação em Física , Universidade Federal do Pará , CEP 66075-110 , Belém , Pará , Brazil
| | - Wania C Moreira
- Departamento de Química , Universidade Federal de São Carlos , CP 676, CEP 13565-905 , São Carlos , São Paulo , Brazil
| | - Luis R Dinelli
- Faculdade de Ciências Integradas do Pontal , Universidade Federal de Uberlândia , Rua Vinte, 1600, CEP 38304-402 , Ituiutaba , Minas Gerais , Brazil
| | - Alzir A Batista
- Departamento de Química , Universidade Federal de São Carlos , CP 676, CEP 13565-905 , São Carlos , São Paulo , Brazil
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Sousa LM, Vilarinho LM, Ribeiro GH, Bogado AL, Dinelli LR. An electronic device based on gold nanoparticles and tetraruthenated porphyrin as an electrochemical sensor for catechol. ROYAL SOCIETY OPEN SCIENCE 2017; 4:170675. [PMID: 29308220 PMCID: PMC5749988 DOI: 10.1098/rsos.170675] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/13/2017] [Accepted: 11/16/2017] [Indexed: 05/15/2023]
Abstract
The aim of this study was to obtain an electrochemical device between the electrostatic interaction of the electropolymerized porphyrin {CoTPyP[RuCl3(dppb)]4}, where TPyP = 5,10,15, 20-tetrapyridilphorphyrin and dppb = 1,4-bis(diphenylphosphino)butane, and gold nanoparticles (AuNPsn-), to be used as a voltammetric sensor to determine catechol (CC). The modified electrode, labelled as [(CoTPRu4)n8+-BE]/AuNPsn- {where BE = bare electrode = glassy carbon electrode (GCE) or indium tin oxide (ITO)}, was made layer-by-layer. Initially, a cationic polymeric film was generated by electropolymerization of the {CoTPyP[RuCl3(dppb)]4} onto the surface of the bare electrode to produce an intermediary electrode [(CoTPRu4)n8+-BE]. Making the final electronic device also involves coating the electrode [(CoTPRu4)n8+-BE] using a colloidal suspension of AuNPsn- by electrostatic interaction between the species. Therefore, a bilayer labelled as [(CoTPRu4)n8+-BE]/AuNPsn- was produced and used as an electrochemical sensor for CC determination. The electrochemical behaviour of CC was investigated using cyclic voltammetry at [(CoTPRu4)n8+-GCE]/AuNPsn- electrode. Compared to the GCE, the [(CoTPRu4)n8+-GCE]/AuNPsn- showed higher electrocatalytic activity towards the oxidation of CC. Under the optimized conditions, the calibration curves for CC were 21-1357 µmol l-1 with a high sensitivity of 108 µA µmol l-1 cm-2. The detection limit was 1.4 µmol l-1.
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Affiliation(s)
- Luana M. Sousa
- Faculdade de Ciências Integradas do Pontal, Universidade Federal de Uberlândia, Rua vinte, 1600, CEP 38304-402, Ituiutaba, Minas Gerais, Brazil
| | - Luana M. Vilarinho
- Faculdade de Ciências Integradas do Pontal, Universidade Federal de Uberlândia, Rua vinte, 1600, CEP 38304-402, Ituiutaba, Minas Gerais, Brazil
| | - Gabriel H. Ribeiro
- Departamento de Química, Universidade Federal de São Carlos, CP 676, CEP 13565-905, São Carlos, Sao Paulo, Brazil
| | - André L. Bogado
- Faculdade de Ciências Integradas do Pontal, Universidade Federal de Uberlândia, Rua vinte, 1600, CEP 38304-402, Ituiutaba, Minas Gerais, Brazil
| | - Luís R. Dinelli
- Faculdade de Ciências Integradas do Pontal, Universidade Federal de Uberlândia, Rua vinte, 1600, CEP 38304-402, Ituiutaba, Minas Gerais, Brazil
- Author for correspondence: Luís R. Dinelli e-mail:
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Investigation of the photophysical and eletrochemical properties of a free base tetrapyridyl porphyrin with meso carbon linked ruthenium(II) groups. J Photochem Photobiol A Chem 2016. [DOI: 10.1016/j.jphotochem.2015.09.014] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/08/2023]
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Ribeiro GH, Vilarinho LM, Ramos TDS, Bogado AL, Dinelli LR. Electrochemical behavior of hydroquinone and catechol at glassy carbon electrode modified by electropolymerization of tetraruthenated oxovanadium porphyrin. Electrochim Acta 2015. [DOI: 10.1016/j.electacta.2015.06.139] [Citation(s) in RCA: 33] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
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9
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Ferreira VF, Do Prado CR, Rodrigues CM, Otubo L, Batista AA, da Cruz JW, Ellena J, Dinelli LR, Bogado AL. Modified glassy carbon electrode with AuNPs using cis-[RuCl(dppb)(bipy)(4-vpy)]+ as crossed linking agent. Polyhedron 2014. [DOI: 10.1016/j.poly.2014.04.024] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
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Cavarzan DA, Fagundes FD, Fuganti O, da Silva CW, Pinheiro CB, Back DF, Barison A, Bogado AL, de Araujo MP. Mixed phosphine/diimines and/or amines ruthenium carbonyl complexes: Synthesis, characterization and transfer-hydrogenation. Polyhedron 2013. [DOI: 10.1016/j.poly.2013.06.022] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
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Synthesis and characterization of [Ru(η6-C10H14)(dppf)X][PF6] (X=Cl, Br, I, SnF3) compounds: The X-ray structure of [Ru(η6-C10H14)(dppf)Cl][SnCl3]·0.45CH2Cl2. Polyhedron 2012. [DOI: 10.1016/j.poly.2012.05.002] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
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García C, Ferraudi G, Lappin AG, Isaacs M. Synthesis, spectral, electrochemical and flash photolysis studies of Fe(II), Ni(II) tetrapyridylporphyrins coordinated at the periphery with chromium(III) phenanthroline complexes. Inorganica Chim Acta 2012. [DOI: 10.1016/j.ica.2012.02.023] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
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Sampaio RN, Gomes WR, Araujo DMS, Machado AEH, Silva RA, Marletta A, Borissevitch IE, Ito AS, Dinelli LR, Batista AA, Zílio SC, Gonçalves PJ, Barbosa Neto NM. Investigation of Ground- and Excited-State Photophysical Properties of 5,10,15,20-Tetra(4-pyridyl)-21H,23H-porphyrin with Ruthenium Outlying Complexes. J Phys Chem A 2011; 116:18-26. [DOI: 10.1021/jp205963k] [Citation(s) in RCA: 38] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- R. N. Sampaio
- Instituto de Física, Universidade Federal de Uberlândia, Minas Gerais, Brazil
| | - W. R. Gomes
- Instituto de Química, Universidade Federal de Uberlândia, Minas Gerais, Brazil
| | - D. M. S. Araujo
- Instituto de Química, Universidade Federal de Uberlândia, Minas Gerais, Brazil
| | - A. E. H. Machado
- Instituto de Química, Universidade Federal de Uberlândia, Minas Gerais, Brazil
- Departamento de Química, CAC/UFG, Campus Catalão, Universidade Federal de Goiás, Goiás, Brazil
| | - R. A. Silva
- Instituto de Física, Universidade Federal de Uberlândia, Minas Gerais, Brazil
| | - A. Marletta
- Instituto de Física, Universidade Federal de Uberlândia, Minas Gerais, Brazil
| | - I. E. Borissevitch
- Faculdade de Filosofia Ciências e Letras de Ribeirão Preto, Universidade de São Paulo, São Paulo, Brazil
| | - A. S. Ito
- Faculdade de Filosofia Ciências e Letras de Ribeirão Preto, Universidade de São Paulo, São Paulo, Brazil
| | - L. R. Dinelli
- Faculdade de Ciências Integradas do Pontal, Universidade Federal de Uberlândia, Minas Gerais, Brazil
| | - A. A. Batista
- Departamento de Química, Universidade Federal de São Carlos, São Paulo, Brazil
| | - S. C. Zílio
- Instituto de Física de São Carlos, Universidade de São Paulo, São Paulo, Brazil
| | - P. J. Gonçalves
- Instituto de Física, Universidade Federal de Goiás, Goiás, Brazil
| | - N. M. Barbosa Neto
- Instituto de Física, Universidade Federal de Uberlândia, Minas Gerais, Brazil
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Electrochemical reduction of nitrite at poly-[Ru(5-NO2-phen)2Cl] tetrapyridylporphyrin glassy carbon modified electrode. Electrochim Acta 2011. [DOI: 10.1016/j.electacta.2011.03.028] [Citation(s) in RCA: 50] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
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15
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Dreyse PA, Isaacs MA, Iturriaga PE, Villagra DA, Aguirre MJ, Kubiak CP, Glover SD, Goeltz JC. Electrochemical preparation of conductive films of tetrapyridylporphyrins coordinated to four [Ru(5-NO2-phen)2Cl]+ groups. J Electroanal Chem (Lausanne) 2010. [DOI: 10.1016/j.jelechem.2010.08.007] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
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