Influence of the Eliminated Ligand Structure on the Reduction Rate of the Cobalt(III) Complexes

Capa

Citar

Texto integral

Acesso aberto Acesso aberto
Acesso é fechado Acesso está concedido
Acesso é fechado Somente assinantes

Resumo

The reduction of the heteroleptic cobalt(III) complexes with bipyridine ligands of different structures of the model drug molecule is studied by in situ NMR spectroscopy. The nature of the ligand eliminated during reduction is shown to exert a substantial effect on the reduction rate, which indicates that an optimum amount of cobalt should be chosen for the redox-activated delivery of a certain drug.

Texto integral

Acesso é fechado

Sobre autores

I. Nikovskii

Nesmeyanov Institute of Organoelement Compounds, Russian Academy of Sciences

Email: khakina90@ineos.ac.ru
Rússia, Moscow

K. Spiridonov

Nesmeyanov Institute of Organoelement Compounds, Russian Academy of Sciences; Moscow State University

Email: khakina90@ineos.ac.ru
Rússia, Moscow; Moscow

A. Dan′shina

Nesmeyanov Institute of Organoelement Compounds, Russian Academy of Sciences; Moscow Institute of Physics and Technology (National Research University)

Email: khakina90@ineos.ac.ru
Rússia, Moscow; Dolgoprudnyi

E. Khakina

Nesmeyanov Institute of Organoelement Compounds, Russian Academy of Sciences

Autor responsável pela correspondência
Email: khakina90@ineos.ac.ru
Rússia, Moscow

Yu. Nelyubina

Nesmeyanov Institute of Organoelement Compounds, Russian Academy of Sciences

Email: khakina90@ineos.ac.ru
Rússia, Moscow

Bibliografia

  1. Jungwirth, U., Kowol, C.R., Keppler, B.K., et al., Antioxid. Redox. Signaling, 2011, vol. 15, p. 1085.
  2. Brown, J.M. and Wilson, W.R., Nat. Rev. Cancer, 2004, vol. 4, p. 437.
  3. Denny, W.A., Cancer Invest., 2004, vol. 22, p. 604.
  4. Graf, N. and Lippard, S.J., Adv. Drug. Deliv. Rev., 2012, vol. 64, p. 993.
  5. Ware, D.C., Siim, B.G., Robinson, K.G., et al., Inorg. Chem., 1991, vol. 30, p. 3750.
  6. Craig, P.R., Brothers, P.J., Clark, G.R., et al., Dalton Trans., 2004, vol. 4, p. 611.
  7. Failes, T.W., Cullinane, C., Diakos, C.I., et al., Chem.-Eur. J., 2007, vol. 13, p. 2974.
  8. Karnthaler-Benbakka, M.S.C., Groza, M.S.D., Kryeziu, M.K., et al., Angew. Chem., Int. Ed. Engl., 2014, vol. 53, p. 12930.
  9. Palmeira-Mello, M.V., Caballero, A.B., Ribeiro, J.M., et al., J. Inorg. Biochem., 2020, vol. 211, p. 111211.
  10. Souza, I.S.A., Santana, S.S., Gomez, J.G., et al., Dalton Trans., 2020, vol. 49, p. 16425.
  11. Khakina, E.A., Nikovskii, I.A., Babakina, D.A., et al., Russ. J. Coord. Chem., 2023, vol. 49, p. 24. https://doi.org/10.1134/S1070328422700105
  12. Cioncoloni, G., Senn, H.M., Sproules, S., et al., Dalton Trans., 2016, vol. 45, p. 15575.
  13. Vlcek, A.A., Inorg. Chem., 1967, vol. 6, p. 1425.
  14. Ma, D.-L., Wu, C., Cheng, S.-S., et al., Int. J. Mol. Sci., 2019, vol. 20, p. 341.
  15. Sheldrick, G.M., Acta Crystallogr., Sect. A: Found. Crystallogr., 2008, vol. 64, p. 112.
  16. Dolomanov, O.V., Bourhis, L.J., Gildea, R.J., et al., J. Appl. Crystallogr., 2009, vol. 42, p. 339.
  17. Stamatatos, T.C., Bell, A., Cooper, P., et al., Inorg. Chem. Commun., 2005, vol. 8, p. 533.
  18. Alvarez, S., Chem. Rev., 2015, vol. 115, p. 13447.

Arquivos suplementares

Arquivos suplementares
Ação
1. JATS XML
Baixar
2. Fig. 1. General view of complex II, illustrating the coordination environment of the cobalt(III) ion. Here and further, perchlorate anions are not shown, and non-hydrogen atoms are represented as ellipsoids of thermal vibrations (p = 30%). The numbering is given only for the metal ion and symmetrically independent heteroatoms.

Baixar (99KB)
Metadados
3. Fig. 2. Fragment of the crystal packing of complex II, illustrating the formation of 1D chains due to the stacking interaction between bipyridine ligands (highlighted in pink).

Baixar (172KB)
Metadados
4. Fig. 3. Dynamics of changes in the 1H NMR spectrum over time during the reduction of complex II with ascorbic acid in an argon atmosphere (the spectrum was recorded in a mixture of acetonitrile-d3 and deuterated water, 4:1 vol.).

Baixar (153KB)
Metadados
5. Fig. 4. Comparison of the paramagnetic regions of the NMR spectra of the [Co(Bipy)3]ClO4 complex (top) and reduction products I (center) and II (bottom).

Baixar (121KB)
Metadados
6. Fig. 5. Comparison of the mass spectra of the reduction products of complexes I (a) and II (b).

Baixar (190KB)
Metadados
7. Fig. 6. Kinetic curves of the consumption of complexes I and II during the reduction of ascorbic acid in an argon atmosphere.

Baixar (89KB)
Metadados
8. Fig. 7. Dependence of the logarithms of the concentration of ln[C] complexes I and II on the reaction time during reduction with ascorbic acid in an argon atmosphere.

Baixar (84KB)
Metadados
9. Scheme 1.

Baixar (82KB)
Metadados
10. Scheme 2.

Baixar (163KB)
Metadados

Declaração de direitos autorais © Российская академия наук, 2024