Versatile coordination of a reactive P,N-ligand toward boron, aluminum and gallium and interconversion reactivity

M. Devillard (1) , Carlos A. Lamsfus (2) , V. Vreeken (1) , Laurent Maron (2) , J. I van Der Vlugt (1)

1 UvA - University of Amsterdam [Amsterdam] = Universiteit van Amsterdam
2 LPCNO - Laboratoire de physique et chimie des nano-objets

The synthesis and reactivity of the first Group 13 complexes bearing a dearomatized phosphino-amido ligand L are reported, i.e. alane AlEt 2 (L) 1, gallane GaCl 2 (L) 2 and borane B(Cl)(Ph)(L) 3. The three complexes react very differently with Group 13 trihalogenides, providing access to zwitterionic anti-3·GaCl 3 and the unique bis(metalloid) 5·BCl 2 , with the boron center part of a highly unusual anionic four-mem-bered ring (charge on C) and Ga bound to P. The coordination chemistry and the various transformations are supported by DFT calculations, X-ray crystallography and multinuclear NMR spectroscopic data.

Domaines: Chimie

M. Devillard, Carlos A. Lamsfus, V. Vreeken, Laurent Maron, J. I van Der Vlugt. Versatile coordination of a reactive P,N-ligand toward boron, aluminum and gallium and interconversion reactivity. Dalton Transactions, 2016, 45 (27), pp.10989-10998. ⟨10.1039/c6dt02087a⟩. ⟨hal-01968804⟩