[Zurück]


Zeitschriftenartikel:

M. Czakler, Ch. Artner, U. Schubert:
"Influence of the Phosphonate Ligand on the Structure of Phosphonate-Substituted Titanium Oxo Clusters";
European Journal of Inorganic Chemistry, 2013 (2013), 33; S. 5790 - 5796.



Kurzfassung englisch:
The reaction of titanium isopropoxide, Ti(OiPr)4, with bis(trimethylsilyl) phosphonates has led to structures containingTi3O units [= Ti33-O)(μ2-OiPr)3(OiPr)3(O3PR)3] as the basic structural motif. This unit can be capped by a single Ti(OiPr)2L group (L = neutral ligand) through phosphonate bridges (for R = xylyl), or sandwich-like structures can be formed with two Ti3O units bonded to a central Ti atom (for R = CH2CH2CH2Cl or benzyl). For R = allyl or ethyl, dimeric clusters were formed in which two Ti4 cluster units are bridged by isopropyl phosphonate ligands. For comparison, Ti(OiPr)4 was also treated with allylphosphonic acid to yield a Ti4 cluster. The reaction of Ti(OiPr)4 with the bulky bis(trimethylsilyl) 2-naphthyl-methyphosphonate did not yield an oxo cluster but instead the phosphonate-substituted titanium alkoxide Ti4(OiPr)8(O3PCH2naphthyl)4.

Schlagworte:
Titanium; Alkoxides; Phosphorus; Hydrolysis; Cluster compounds


"Offizielle" elektronische Version der Publikation (entsprechend ihrem Digital Object Identifier - DOI)
http://dx.doi.org/10.1002/ejic.201300859



Zugeordnete Projekte:
Projektleitung Ulrich Schubert:
Anisotrope Funktionalisierung von Clustern


Erstellt aus der Publikationsdatenbank der Technischen Universitšt Wien.