Photogeneration of titanium(III) from titanium(IV) citrate in aqueous solution

Jan Paradies, Jane Crudass, Fiona MacKay, Lesley J. Yellowlees, James Montgomery, Simon Parsons, Iain Oswald, Neil Robertson, Peter J. Sadler

Research output: Contribution to journalArticle

18 Citations (Scopus)

Abstract

Current interest in the biochemistry of Ti(IV) arises from its widespread use in white pigments and its potential in therapeutic agents. Citrate is known to form strong complexes with Ti(IV). We show here that Ti(III) citrate is generated in a facile manner and in good yield by the action of UV radiation on Ti(IV) citrate in aqueous solution. The Ti(III)-citrate species formed was isolated and characterised by UV-Visible spectroscopy, showing an absorption at 547 nm (ε = 100 M-1 cm-1), and by electron paramagnetic resonance (EPR) spectroscopy giving a resonance at g = 1.949 (linewidth = 60 G) . An X-ray structure of the parent Ti(IV) complex in the form [TiNa3(C6H6O7)2(C6H5O7)(H2O)6.8] · 2H2O is reported along with a study of the reaction of Ti(IV)-citrate with N,N-ethylenebis(o-hydroxytoluene)glycine (EHTG), which was more rapid than those of other related Ti(IV) complexes.

LanguageEnglish
Pages1260-1264
Number of pages5
JournalJournal of Inorganic Biochemistry
Volume100
Issue number7
DOIs
Publication statusPublished - 31 Jul 2006

Fingerprint

Titanium
Citric Acid
Spectrum Analysis
Spectroscopy
Biochemistry
Electron Spin Resonance Spectroscopy
Pigments
Ultraviolet radiation
Linewidth
Glycine
Paramagnetic resonance
X-Rays
titanium citrate
Radiation
X rays
Therapeutics

Keywords

  • citrate
  • EHTG
  • photoreduction
  • titanium
  • x-ray structure

Cite this

Paradies, J., Crudass, J., MacKay, F., Yellowlees, L. J., Montgomery, J., Parsons, S., ... Sadler, P. J. (2006). Photogeneration of titanium(III) from titanium(IV) citrate in aqueous solution. Journal of Inorganic Biochemistry, 100(7), 1260-1264. https://doi.org/10.1016/j.jinorgbio.2006.02.011
Paradies, Jan ; Crudass, Jane ; MacKay, Fiona ; Yellowlees, Lesley J. ; Montgomery, James ; Parsons, Simon ; Oswald, Iain ; Robertson, Neil ; Sadler, Peter J. / Photogeneration of titanium(III) from titanium(IV) citrate in aqueous solution. In: Journal of Inorganic Biochemistry. 2006 ; Vol. 100, No. 7. pp. 1260-1264.
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Paradies, J, Crudass, J, MacKay, F, Yellowlees, LJ, Montgomery, J, Parsons, S, Oswald, I, Robertson, N & Sadler, PJ 2006, 'Photogeneration of titanium(III) from titanium(IV) citrate in aqueous solution' Journal of Inorganic Biochemistry, vol. 100, no. 7, pp. 1260-1264. https://doi.org/10.1016/j.jinorgbio.2006.02.011

Photogeneration of titanium(III) from titanium(IV) citrate in aqueous solution. / Paradies, Jan; Crudass, Jane; MacKay, Fiona; Yellowlees, Lesley J.; Montgomery, James; Parsons, Simon; Oswald, Iain; Robertson, Neil; Sadler, Peter J.

In: Journal of Inorganic Biochemistry, Vol. 100, No. 7, 31.07.2006, p. 1260-1264.

Research output: Contribution to journalArticle

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T1 - Photogeneration of titanium(III) from titanium(IV) citrate in aqueous solution

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AU - Crudass, Jane

AU - MacKay, Fiona

AU - Yellowlees, Lesley J.

AU - Montgomery, James

AU - Parsons, Simon

AU - Oswald, Iain

AU - Robertson, Neil

AU - Sadler, Peter J.

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Paradies J, Crudass J, MacKay F, Yellowlees LJ, Montgomery J, Parsons S et al. Photogeneration of titanium(III) from titanium(IV) citrate in aqueous solution. Journal of Inorganic Biochemistry. 2006 Jul 31;100(7):1260-1264. https://doi.org/10.1016/j.jinorgbio.2006.02.011