This work was financially supported by the National Natural Science Foundation of China and SINOPEC (No. 20334030);by the National Basic Research Program of China (No. 2005CB623801).
Two multi-nuclear titanium complexes [Ti(η^5-Cp^*)Cl(μ-O)]3 (1) and [(η^5-Cp^*TiCl)(μ-O)2(η^5-Cp^*Ti)2(μ- O)(μ-O)2]2Ti (Cp^* = C5Me5) (2) have been investigated as the precatalysts for s...