Molecular structure of [In2(μ, η1-OR) (μ, η2-OR) (η2-OR)3(η1-OR)] R = C2H4NMe2, a pincer ligand

Functional indium [In(OR)(3)](m) alkoxides (R = C2H4OMe, C2H4NMe2) have been obtained by alcoholysis of In[N(SiMe3)(2)](3) and characterised by elemental analysis, FT-IR and NMR spectroscopy. The 2-dimethylaminoethoxide was characterised by X-ray diffraction. It corresponds to the association of two InO6 octahedra giving the unsymmetrical dimer [In-2(mu, eta(1)-OR)(mu, eta(2)-OR)(eta(2)-OR)(3)(eta(1)-OR)] (2). 2 was used as a pincer ligand toward Cu(acac)(2). (C) 2002 Elsevier Science B.V. All rights reserved.