956726-91-3Relevant academic research and scientific papers
Formation of a titanium complex with a Ti=CHAl2 structural unit from LTiMe3 and trimethylaluminum
Nikiforov, Grigory B.,Roesky, Herbert W.,Heisen, Burkhard C.,Grosse, Christian,Oswald, Rainer B.
, p. 2544 - 2548 (2008)
The reaction of LTiCl3 (1) (L = HC(CMeN(2,6-iPr 2C6H3))2, nacnac) with MeLi-(Et 2O)0.14 in toluene afforded the stable Ti(IV) alkyl complex LTiMe3 (1). Reaction of 1 with 2 equiv of AlMe3 in toluene resulted in the formation of LTi(Me)=CH(Al2Me5) (2) in high yield. Compounds 1 and 2 were characterized by X-ray structural analysis, NMR, IR, mass spectrometry, and elemental analysis. The Ti-CH bond length (1.880(2) A) of 2 is in the range of a short Ti-C bond. This was additionally supported by NMR and DFT calculations. Compound 2 polymerized ethylene without adding any cocatalyst, although activity is low; the best TOF value was 2.4 × 104 g(polymer)/mol catalyst · h · bar.
A ligand influence on the stability of heterobimetallic complexes containing the Ti(μ-O)Al skeleton. Transformation of heterometallic systems to the homometallic Ti(IV) and Al(III) complexes
Nikiforov, Grigory B.,Roesky, Herbert W.,Jones, Peter G.,Oswald, Rainer B.,Noltemeyer, Mathias
, p. 4149 - 4159 (2008/03/12)
The influence of the ligands on the formation and stability of -oxo-bridged Ti(iv) complexes has been studied. Reaction of LTiCl3 (1) and LAlMe(OLi) (L = HC(CMeN(2,6-iPr2C6H3)) 2, "NacNac") afforded i
