Hierarchical assembly of helicate-type dinuclear titanium (IV) complexes

…, M de Groot, I Janser, J Runsink, G Raabe…

Index: Albrecht, Markus; Mirtschin, Sebastian; De Groot, Marita; Janser, Ingo; Runsink, Jan; Raabe, Gerhard; Kogej, Michael; Schalley, Christoph A.; Froehlich, Roland Journal of the American Chemical Society, 2005 , vol. 127, # 29 p. 10371 - 10387

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Citation Number: 76

Abstract

The ligands 4-7-H 2 were used in coordination studies with titanium (IV) and gallium (III) ions to obtain dimeric complexes Li4 [(4-7) 6Ti2] and Li6 [(4/5a) 6Ga2]. The X-ray crystal structures of Li4 [(4) 6Ti2], Li4 [(5b) 6Ti2], and Li4 [(7a) 6Ti2] could be obtained. While these complexes are triply lithium-bridged dimers in the solid state, a monomer/dimer equilibrium is observed in solution by NMR spectroscopy and ESI FT-ICR MS. The stability of the ...