565173-07-1Relevant articles and documents
The isolation and structure of titanium bromide compounds containing 2,6-diphenylphenoxide ligation; terminal and bridging ligand effects on Ti-Ti interactions
Eade, Gillian F.,Fanwick, Phillip E.,Rothwell, Ian P.
, p. 1061 - 1064 (2003)
The titanium aryloxy bromides [Ti(OC6H3Ph 2-2,6)2Br2] 1 and [(2,6-Ph2C 6H3O)2Ti(μ-Br)2Ti(OC 6H3Ph2-2,6)2] 2 have been isolated and structurally characterized. Compound 1 adopts a pseudo-tetrahedral environment about titanium while 2 contains an edge-shared bis(tetrahedral) coordination geometry. The Ti-Ti distance is 3.0308(8) A in 2. A comparison of these compounds with their chloride counterparts as well as cyclopentadiene analogues has been made. The Ti-Ti distance in the compounds [Cp′2Ti(μ-X)2 TiCp′2] (Cp′) = methylcyclopentadienyl) increases as the bridging ligand X is changed from Cl to Br. In contrast this parameter is almost identical in the aryloxide compounds [(ArO)2Ti(μ-X)2Ti(OAr)2] (ArO = 2,6-diphenylphenoxide), due to the presence of a titanium-titanium bonding interaction. The Royal Society of Chemistry 2003.