Synthesis, Characterization and Reactivity of Nitrosyl Ruthenium Complexes with the Non-stereoidal Anti-inflammatory Diflunisal

Ernani Lacerda de Oliveira Neto; Juliana Guerreiro Cezar; Fabio Gorzoni Doro; Jose Roque Mota Carvalho; Kleber Queiroz Ferreira

doi:doi:10.11648/j.jcebe.20200402.12

Synthesis, Characterization and Reactivity of Nitrosyl Ruthenium Complexes with the Non-stereoidal Anti-inflammatory Diflunisal

Ernani Lacerda de Oliveira Neto, Juliana Guerreiro Cezar, Fabio Gorzoni Doro, Jose Roque Mota Carvalho, Kleber Queiroz Ferreira

Published in Journal of Chemical, Environmental and Biological Engineering (Volume 4, Issue 2)

Received: 29 August 2019 Accepted: 2 September 2019 Published: 9 June 2020

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Abstract

The Na₂[Ru(NO)Cl₃ (df)] (I) and cis-[Ru(NO)(df)(cyclen)]Cl₂ (II) complexes (df=diflunisal (5-(2,4-difluorophenyl)-2-hydroxybenzoic acid, cyclen=1, 4, 7, 10-tetraazacyclododecane) have been synthesized and characterized by elemental analysis, electronic (UV-Vis) and vibrational (FTIR) spectroscopic techniques. FTIR data suggests different modes of coordination of the ligand diflunisal in these complexes, i.e., coordinated in the bidentate form in the compound I and in the monodentate form in the compound II, and that df is coordinated to ruthenium by carboxylate group in a monodentate mode for both complexes. The FTIR spectra also display v(NO) at 1880 cm^-1 and 1892 cm^-1 for I and II, respectively, indicating a nitrosonium (NO⁺) character. Electronic spectra suggest that df is coordinated to the metal center in both complexes in catecholate form. Detailed electrochemical studies showed that complexes I and II display {RuNO}^6/7 process at -420 mV and at -400 mV (vs. Ag/AgCl) respectively, and df ligand is oxidized at 1120 mV and at 770 mV, respectively. Controlled potential electrolysis at -750 mV or chemical reduction with Zn(Hg) amalgam results in NO release from both complexes.

Published in	Journal of Chemical, Environmental and Biological Engineering (Volume 4, Issue 2)
DOI	10.11648/j.jcebe.20200402.12
Page(s)	39-46
Creative Commons	This is an Open Access article, distributed under the terms of the Creative Commons Attribution 4.0 International License (http://creativecommons.org/licenses/by/4.0/), which permits unrestricted use, distribution and reproduction in any medium or format, provided the original work is properly cited.
Copyright	Copyright © The Author(s), 2020. Published by Science Publishing Group

Keywords

Nitrosyl Ruthenium Complex, Nitric Oxide, Diflunisal

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APA Style

Ernani Lacerda de Oliveira Neto, Juliana Guerreiro Cezar, Fabio Gorzoni Doro, Jose Roque Mota Carvalho, Kleber Queiroz Ferreira. (2020). Synthesis, Characterization and Reactivity of Nitrosyl Ruthenium Complexes with the Non-stereoidal Anti-inflammatory Diflunisal. Journal of Chemical, Environmental and Biological Engineering, 4(2), 39-46. https://doi.org/10.11648/j.jcebe.20200402.12

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ACS Style

Ernani Lacerda de Oliveira Neto; Juliana Guerreiro Cezar; Fabio Gorzoni Doro; Jose Roque Mota Carvalho; Kleber Queiroz Ferreira. Synthesis, Characterization and Reactivity of Nitrosyl Ruthenium Complexes with the Non-stereoidal Anti-inflammatory Diflunisal. J. Chem. Environ. Biol. Eng. 2020, 4(2), 39-46. doi: 10.11648/j.jcebe.20200402.12

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AMA Style

Ernani Lacerda de Oliveira Neto, Juliana Guerreiro Cezar, Fabio Gorzoni Doro, Jose Roque Mota Carvalho, Kleber Queiroz Ferreira. Synthesis, Characterization and Reactivity of Nitrosyl Ruthenium Complexes with the Non-stereoidal Anti-inflammatory Diflunisal. J Chem Environ Biol Eng. 2020;4(2):39-46. doi: 10.11648/j.jcebe.20200402.12

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@article{10.11648/j.jcebe.20200402.12,
  author = {Ernani Lacerda de Oliveira Neto and Juliana Guerreiro Cezar and Fabio Gorzoni Doro and Jose Roque Mota Carvalho and Kleber Queiroz Ferreira},
  title = {Synthesis, Characterization and Reactivity of Nitrosyl Ruthenium Complexes with the Non-stereoidal Anti-inflammatory Diflunisal},
  journal = {Journal of Chemical, Environmental and Biological Engineering},
  volume = {4},
  number = {2},
  pages = {39-46},
  doi = {10.11648/j.jcebe.20200402.12},
  url = {https://doi.org/10.11648/j.jcebe.20200402.12},
  eprint = {https://article.sciencepublishinggroup.com/pdf/10.11648.j.jcebe.20200402.12},
  abstract = {The Na2[Ru(NO)Cl3 (df)] (I) and cis-[Ru(NO)(df)(cyclen)]Cl2 (II) complexes (df=diflunisal (5-(2,4-difluorophenyl)-2-hydroxybenzoic acid, cyclen=1, 4, 7, 10-tetraazacyclododecane) have been synthesized and characterized by elemental analysis, electronic (UV-Vis) and vibrational (FTIR) spectroscopic techniques. FTIR data suggests different modes of coordination of the ligand diflunisal in these complexes, i.e., coordinated in the bidentate form in the compound I and in the monodentate form in the compound II, and that df is coordinated to ruthenium by carboxylate group in a monodentate mode for both complexes. The FTIR spectra also display v(NO) at 1880 cm-1 and 1892 cm-1 for I and II, respectively, indicating a nitrosonium (NO+) character. Electronic spectra suggest that df is coordinated to the metal center in both complexes in catecholate form. Detailed electrochemical studies showed that complexes I and II display {RuNO}6/7 process at -420 mV and at -400 mV (vs. Ag/AgCl) respectively, and df ligand is oxidized at 1120 mV and at 770 mV, respectively. Controlled potential electrolysis at -750 mV or chemical reduction with Zn(Hg) amalgam results in NO release from both complexes.},
 year = {2020}
}

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TY  - JOUR
T1  - Synthesis, Characterization and Reactivity of Nitrosyl Ruthenium Complexes with the Non-stereoidal Anti-inflammatory Diflunisal
AU  - Ernani Lacerda de Oliveira Neto
AU  - Juliana Guerreiro Cezar
AU  - Fabio Gorzoni Doro
AU  - Jose Roque Mota Carvalho
AU  - Kleber Queiroz Ferreira
Y1  - 2020/06/09
PY  - 2020
N1  - https://doi.org/10.11648/j.jcebe.20200402.12
DO  - 10.11648/j.jcebe.20200402.12
T2  - Journal of Chemical, Environmental and Biological Engineering
JF  - Journal of Chemical, Environmental and Biological Engineering
JO  - Journal of Chemical, Environmental and Biological Engineering
SP  - 39
EP  - 46
PB  - Science Publishing Group
SN  - 2640-267X
UR  - https://doi.org/10.11648/j.jcebe.20200402.12
AB  - The Na2[Ru(NO)Cl3 (df)] (I) and cis-[Ru(NO)(df)(cyclen)]Cl2 (II) complexes (df=diflunisal (5-(2,4-difluorophenyl)-2-hydroxybenzoic acid, cyclen=1, 4, 7, 10-tetraazacyclododecane) have been synthesized and characterized by elemental analysis, electronic (UV-Vis) and vibrational (FTIR) spectroscopic techniques. FTIR data suggests different modes of coordination of the ligand diflunisal in these complexes, i.e., coordinated in the bidentate form in the compound I and in the monodentate form in the compound II, and that df is coordinated to ruthenium by carboxylate group in a monodentate mode for both complexes. The FTIR spectra also display v(NO) at 1880 cm-1 and 1892 cm-1 for I and II, respectively, indicating a nitrosonium (NO+) character. Electronic spectra suggest that df is coordinated to the metal center in both complexes in catecholate form. Detailed electrochemical studies showed that complexes I and II display {RuNO}6/7 process at -420 mV and at -400 mV (vs. Ag/AgCl) respectively, and df ligand is oxidized at 1120 mV and at 770 mV, respectively. Controlled potential electrolysis at -750 mV or chemical reduction with Zn(Hg) amalgam results in NO release from both complexes.
VL  - 4
IS  - 2
ER  -

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Author Information

Ernani Lacerda de Oliveira Neto

Department of Exact and Natural Sciences, State University of Southwest Bahia, Itapetinga, Brazil
Juliana Guerreiro Cezar

Department of General and Inorganic Chemistry, Federal University of Bahia, Salvador, Brazil
Fabio Gorzoni Doro

Department of Chemistry, Federal University of Mining Triangle, Iturama, Brazil
Jose Roque Mota Carvalho

Department of General and Inorganic Chemistry, Federal University of Bahia, Salvador, Brazil
Kleber Queiroz Ferreira

Department of General and Inorganic Chemistry, Federal University of Bahia, Salvador, Brazil

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Ernani Lacerda de Oliveira Neto, Juliana Guerreiro Cezar, Fabio Gorzoni Doro, Jose Roque Mota Carvalho, Kleber Queiroz Ferreira. (2020). Synthesis, Characterization and Reactivity of Nitrosyl Ruthenium Complexes with the Non-stereoidal Anti-inflammatory Diflunisal. Journal of Chemical, Environmental and Biological Engineering, 4(2), 39-46. https://doi.org/10.11648/j.jcebe.20200402.12

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ACS Style

Ernani Lacerda de Oliveira Neto; Juliana Guerreiro Cezar; Fabio Gorzoni Doro; Jose Roque Mota Carvalho; Kleber Queiroz Ferreira. Synthesis, Characterization and Reactivity of Nitrosyl Ruthenium Complexes with the Non-stereoidal Anti-inflammatory Diflunisal. J. Chem. Environ. Biol. Eng. 2020, 4(2), 39-46. doi: 10.11648/j.jcebe.20200402.12

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AMA Style

Ernani Lacerda de Oliveira Neto, Juliana Guerreiro Cezar, Fabio Gorzoni Doro, Jose Roque Mota Carvalho, Kleber Queiroz Ferreira. Synthesis, Characterization and Reactivity of Nitrosyl Ruthenium Complexes with the Non-stereoidal Anti-inflammatory Diflunisal. J Chem Environ Biol Eng. 2020;4(2):39-46. doi: 10.11648/j.jcebe.20200402.12

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@article{10.11648/j.jcebe.20200402.12,
  author = {Ernani Lacerda de Oliveira Neto and Juliana Guerreiro Cezar and Fabio Gorzoni Doro and Jose Roque Mota Carvalho and Kleber Queiroz Ferreira},
  title = {Synthesis, Characterization and Reactivity of Nitrosyl Ruthenium Complexes with the Non-stereoidal Anti-inflammatory Diflunisal},
  journal = {Journal of Chemical, Environmental and Biological Engineering},
  volume = {4},
  number = {2},
  pages = {39-46},
  doi = {10.11648/j.jcebe.20200402.12},
  url = {https://doi.org/10.11648/j.jcebe.20200402.12},
  eprint = {https://article.sciencepublishinggroup.com/pdf/10.11648.j.jcebe.20200402.12},
  abstract = {The Na2[Ru(NO)Cl3 (df)] (I) and cis-[Ru(NO)(df)(cyclen)]Cl2 (II) complexes (df=diflunisal (5-(2,4-difluorophenyl)-2-hydroxybenzoic acid, cyclen=1, 4, 7, 10-tetraazacyclododecane) have been synthesized and characterized by elemental analysis, electronic (UV-Vis) and vibrational (FTIR) spectroscopic techniques. FTIR data suggests different modes of coordination of the ligand diflunisal in these complexes, i.e., coordinated in the bidentate form in the compound I and in the monodentate form in the compound II, and that df is coordinated to ruthenium by carboxylate group in a monodentate mode for both complexes. The FTIR spectra also display v(NO) at 1880 cm-1 and 1892 cm-1 for I and II, respectively, indicating a nitrosonium (NO+) character. Electronic spectra suggest that df is coordinated to the metal center in both complexes in catecholate form. Detailed electrochemical studies showed that complexes I and II display {RuNO}6/7 process at -420 mV and at -400 mV (vs. Ag/AgCl) respectively, and df ligand is oxidized at 1120 mV and at 770 mV, respectively. Controlled potential electrolysis at -750 mV or chemical reduction with Zn(Hg) amalgam results in NO release from both complexes.},
 year = {2020}
}

Copy | Download

TY  - JOUR
T1  - Synthesis, Characterization and Reactivity of Nitrosyl Ruthenium Complexes with the Non-stereoidal Anti-inflammatory Diflunisal
AU  - Ernani Lacerda de Oliveira Neto
AU  - Juliana Guerreiro Cezar
AU  - Fabio Gorzoni Doro
AU  - Jose Roque Mota Carvalho
AU  - Kleber Queiroz Ferreira
Y1  - 2020/06/09
PY  - 2020
N1  - https://doi.org/10.11648/j.jcebe.20200402.12
DO  - 10.11648/j.jcebe.20200402.12
T2  - Journal of Chemical, Environmental and Biological Engineering
JF  - Journal of Chemical, Environmental and Biological Engineering
JO  - Journal of Chemical, Environmental and Biological Engineering
SP  - 39
EP  - 46
PB  - Science Publishing Group
SN  - 2640-267X
UR  - https://doi.org/10.11648/j.jcebe.20200402.12
AB  - The Na2[Ru(NO)Cl3 (df)] (I) and cis-[Ru(NO)(df)(cyclen)]Cl2 (II) complexes (df=diflunisal (5-(2,4-difluorophenyl)-2-hydroxybenzoic acid, cyclen=1, 4, 7, 10-tetraazacyclododecane) have been synthesized and characterized by elemental analysis, electronic (UV-Vis) and vibrational (FTIR) spectroscopic techniques. FTIR data suggests different modes of coordination of the ligand diflunisal in these complexes, i.e., coordinated in the bidentate form in the compound I and in the monodentate form in the compound II, and that df is coordinated to ruthenium by carboxylate group in a monodentate mode for both complexes. The FTIR spectra also display v(NO) at 1880 cm-1 and 1892 cm-1 for I and II, respectively, indicating a nitrosonium (NO+) character. Electronic spectra suggest that df is coordinated to the metal center in both complexes in catecholate form. Detailed electrochemical studies showed that complexes I and II display {RuNO}6/7 process at -420 mV and at -400 mV (vs. Ag/AgCl) respectively, and df ligand is oxidized at 1120 mV and at 770 mV, respectively. Controlled potential electrolysis at -750 mV or chemical reduction with Zn(Hg) amalgam results in NO release from both complexes.
VL  - 4
IS  - 2
ER  -

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