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

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

doi:10.1016/j.jinorgbio.2006.02.011

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

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

Research output: Contribution to journal › Article › peer-review

Abstract / Description of output

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 (epsilon = 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)] center dot 2H(2)O is reported along with a study of the reaction of Ti(IV)-citrate with NN-ethylenebis(o-hydroxytoluene)glycine (EHTG), which was more rapid than those of other related Ti(IV) complexes. (c) 2006 Elsevier Inc. All rights reserved.

Original language	English
Pages (from-to)	1260-1264
Number of pages	5
Journal	Journal of Inorganic Biochemistry
Volume	100
Issue number	7
DOIs	https://doi.org/10.1016/j.jinorgbio.2006.02.011
Publication status	Published - Jul 2006

Keywords / Materials (for Non-textual outputs)

titanium
citrate
photoreduction
EHTG
X-ray structure
DRUG TITANOCENE DICHLORIDE
TI-IV UPTAKE
COMPLEXES
SPECIATION
RELEVANCE
TRANSFERRIN
DERIVATIVES
OXIDATION
RELEASE
ACID

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10.1016/j.jinorgbio.2006.02.011

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@article{8a321bd002394e9e88ba5476a4c670cd,

title = "Photogeneration of titanium(III) from titanium(IV) citrate in aqueous solution",

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 (epsilon = 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)] center dot 2H(2)O is reported along with a study of the reaction of Ti(IV)-citrate with NN-ethylenebis(o-hydroxytoluene)glycine (EHTG), which was more rapid than those of other related Ti(IV) complexes. (c) 2006 Elsevier Inc. All rights reserved.",

keywords = "titanium, citrate, photoreduction, EHTG, X-ray structure, DRUG TITANOCENE DICHLORIDE, TI-IV UPTAKE, COMPLEXES, SPECIATION, RELEVANCE, TRANSFERRIN, DERIVATIVES, OXIDATION, RELEASE, ACID",

author = "Jan Paradies and Jane Crudass and Fiona MacKay and Yellowlees, {Lesley J.} and James Montgomery and Simon Parsons and Lain Oswald and Neil Robertson and Sadler, {Peter J.}",

year = "2006",

month = jul,

doi = "10.1016/j.jinorgbio.2006.02.011",

language = "English",

volume = "100",

pages = "1260--1264",

journal = "Journal of Inorganic Biochemistry",

issn = "0162-0134",

publisher = "Elsevier",

number = "7",

}

TY - JOUR

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

AU - Paradies, Jan

AU - Crudass, Jane

AU - MacKay, Fiona

AU - Yellowlees, Lesley J.

AU - Montgomery, James

AU - Parsons, Simon

AU - Oswald, Lain

AU - Robertson, Neil

AU - Sadler, Peter J.

PY - 2006/7

Y1 - 2006/7

N2 - 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 (epsilon = 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)] center dot 2H(2)O is reported along with a study of the reaction of Ti(IV)-citrate with NN-ethylenebis(o-hydroxytoluene)glycine (EHTG), which was more rapid than those of other related Ti(IV) complexes. (c) 2006 Elsevier Inc. All rights reserved.

AB - 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 (epsilon = 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)] center dot 2H(2)O is reported along with a study of the reaction of Ti(IV)-citrate with NN-ethylenebis(o-hydroxytoluene)glycine (EHTG), which was more rapid than those of other related Ti(IV) complexes. (c) 2006 Elsevier Inc. All rights reserved.

KW - titanium

KW - citrate

KW - photoreduction

KW - EHTG

KW - X-ray structure

KW - DRUG TITANOCENE DICHLORIDE

KW - TI-IV UPTAKE

KW - COMPLEXES

KW - SPECIATION

KW - RELEVANCE

KW - TRANSFERRIN

KW - DERIVATIVES

KW - OXIDATION

KW - RELEASE

KW - ACID

U2 - 10.1016/j.jinorgbio.2006.02.011

DO - 10.1016/j.jinorgbio.2006.02.011

M3 - Article

SN - 0162-0134

VL - 100

SP - 1260

EP - 1264

JO - Journal of Inorganic Biochemistry

JF - Journal of Inorganic Biochemistry

IS - 7

ER -

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

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Keywords / Materials (for Non-textual outputs)

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