10  Titanium, zirconium and hafnium

Synthesis and Structure of Heterobimetallic Compounds with a Single Thiolato-Bridged Ligand

“…Fe 2 (CO) 9 can exist in THF solution as Fe(CO) 4 THF [Scheme , (a)] 20. Then Fe(CO) 4 THF can easily release the solvent molecule during the reaction, and the resultant reactive fragment Fe(CO) 4 coordinates to the sulfur lone pair of CpFe(CO) 2 SPh to generate the bimetallic intermediate CpFe(CO) 2 (μ‐SPh)Fe(CO) 4 [Scheme , (b)] 18,19.…”

New concepts in multidentate ligand chemistry: effects of multidentarity on catalytic and spectroscopic properties of ferrocenyl polyphosphines

“…15 (b)). 22,23 The ferrocenyl polyphosphines reviewed herein pertain to a different class, which could be categorized as branched polyphosphines. Other branched polyphosphines were reported by Santelli 24 and Mayer 25 (Fig.…”

Di-μ-hydroxo-κ4O:O-bis[aquatris(triphenylsilanolato-κO)zirconium(IV)] toluene solvate

“…The extraordinary potential of metallocene-type group 4 metal catalysts in olefin oligomerization or polymerization has been intensively studied in terms of the promotion of highly active cationic species by methylalumoxan (MAO), the isolation of these cationic species themselves, the development of so-called 'single-site' catalysts and the adjustment of ligands in order to achieve highly selective catalytic reactions (Brintzinger et al, 1995;Britovsek et al, 1999;Mö hring & Coville, 1994;Bochmann, 1996;Kaminsky, 1996;Erker et al, 2004;Cotton, 2000;Kaminsky, 2000;Chirik & Bercaw, 2000;Piers et al, 1999;Chien, 1999;Alt & Samuel, 1998). The chemistry of group 4 metal complexes containing inorganic donor sets, viz.…”