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Investigation of the complexation and hydrolysis–condensation of titanium(IV) n-butoxide [Ti(OBun)4] with some unsaturated mono and dicarboxylic acids

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Abstract

Titanium tetra-n-butoxide, [Ti(OCH2CH2CH2CH3)4; Ti(OBun)4] was reacted with some unsaturated mono- and di-carboxylic acids such as t-cinnamic acid (TCA; C6H6CH=CHCOOH), maleic acid (MA; HOOCCH=CHCOOH) and itaconic acid [ITA; HOOCCH2C(=CH2)COOH]. Complexation ratios of the complexes (mol of the acid per Ti atom in the complexes) were determined by FTIR spectroscopy. The structure of the complexes was supported by the 13C-n.m.r., 1H-n.m.r. and FTIR spectra. It was observed that MA, ITA and TCA behave as bidendate ligands. MA and ITA are dicarboxylic acids that complexed with Ti(OBun)4 in a 2:1 mol ratio (Ti:MA and Ti:ITA). TCA is a monocarboxylic acid which was complexed with Ti(OBun)4 with a mol ratio of 1:1 (Ti:TCA). Hydrolysis reactions of these complexes were performed by Karl–Fischer titration. The hydrolysis reaction rate of the modified Ti(OBun)4 was reduced with complexation by these carboxylic acids.

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  1. Department of Chemistry, Akdeniz University, 07058, Antalya, Turkey

    Birsen S. Buyuktas

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  1. Birsen S. Buyuktas
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Buyuktas, B.S. Investigation of the complexation and hydrolysis–condensation of titanium(IV) n-butoxide [Ti(OBun)4] with some unsaturated mono and dicarboxylic acids. Transition Met Chem 31, 786–791 (2006). https://doi.org/10.1007/s11243-006-0070-9

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  • DOI: https://doi.org/10.1007/s11243-006-0070-9

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