Issue 27, 2012

The conversion of multinuclear μ-oxo titanium(iv) species in the reaction of Ti(OiBu)4 with branched organic acids; results of structural and spectroscopic studies

Abstract

Crystalline materials have been synthesized in reactions of titanium(IV) tetraisobutoxide with branched organic acids (HOOCR′, R′ = CMe2Et, tBu, CH2tBu) in the molar ratio 1 : 1 at room temperature under Ar atmosphere. Particular attention has been paid to the structural and spectral characterization of metastable intermediate complexes of general formula [Ti7O9(OiBu)4(HOiBu)(OOCCMe2Et)6]2 (1) and [Ti6O5(OiBu)6(OOCtBu)8] (3), and their conversion towards more structurally stable compounds [Ti6O6(OiBu)6(OOCC(Me)2Et)6] (2) and [Ti6O6(H2O)2(OiBu)6(OOCtBu)6] (4). The hexanuclear structure of (5) ([Ti6O6(OiBu)6(OOCCH2tBu)6]) has been postulated on the basis of IR and 13C NMR spectroscopic data analysis. The possible reaction pathways which may occur during the formation of the above mentioned compounds are also discussed.

Graphical abstract: The conversion of multinuclear μ-oxo titanium(iv) species in the reaction of Ti(OiBu)4 with branched organic acids; results of structural and spectroscopic studies

Supplementary files

Article information

Article type
Paper
Submitted
03 Dec 2011
Accepted
20 Apr 2012
First published
24 May 2012

Dalton Trans., 2012,41, 8261-8269

The conversion of multinuclear μ-oxo titanium(IV) species in the reaction of Ti(OiBu)4 with branched organic acids; results of structural and spectroscopic studies

P. Piszczek, A. Radtke, T. Muzioł, M. Richert and J. Chojnacki, Dalton Trans., 2012, 41, 8261 DOI: 10.1039/C2DT12338J

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