Publications in Scientific Journals:
M. Czakler, Ch. Artner, U. Schubert:
"Acetic Acid Mediated Synthesis of Phosphonate-Substituted Titanium Oxo Clusters";
European Journal of Inorganic Chemistry,
2014
(2014),
12;
2038
- 2045.
English abstract:
New phosphonate/acetate-substituted titanium oxo/alkoxo clusters were prepared from Ti(OiPr)4 and bis(trimethylsilyl) phosphonates in the presence of acetic acid, which served to generate water in situ through ester formation. The process led to clusters with a higher degree of condensation than in previously known phosphonate-substituted titanium oxo clusters. The clusters [Ti6O4(OiPr)10(OAc)2(O3PR)2] (OAc = acetate) were obtained for a large variety of functional and non-functional groups R under a range of reaction conditions. This cluster type, which is also retained in solution, therefore appears to be very robust. Two other clusters, [Ti5O(OiPr)11(OAc)(O3PCH2CH2CH2Br)3] and [Ti5O3(OiPr)6(OAc)4(O3P-xylyl)2], were only isolated in special cases.
Keywords:
Cluster compounds; Cage compounds; Titanium; P ligands; Hydrolysis
"Official" electronic version of the publication (accessed through its Digital Object Identifier - DOI)
http://dx.doi.org/10.1002/ejic.201400051
Created from the Publication Database of the Vienna University of Technology.