Copper(I) complexes derived from mono- and diphosphino-boranes: Cu→b interactions supported by arene coordination

M. Sircoglou (1) , Sébastien Bontemps (1) , Maxime Mercy (2) , Karinne Miqueu (3) , S. Ladeira (4) , N. Saffon (4) , Laurent Maron (2) , G. Bouhadir (1) , D. Bourissou (1)

1 LHFA - Laboratoire Hétérochimie Fondamentale et Appliquée
2 LPCNO - Laboratoire de physique et chimie des nano-objets
3 IPREM - Institut des sciences analytiques et de physico-chimie pour l'environnement et les materiaux
4 SFTCM - Structure Fédérative Toulousaine en Chimie Moléculaire

The monophosphino-boranes o-iPr2P(C6H 4)BR2 (1: R = Ph and 3: R = Cy) and diphosphino-boranes [o-R2P(C6H4)]2BPh (5: R = Ph and 6: R = iPr) readily react with CuCl to afford the corresponding complexes [o-iPr2P(C6H4)BPh2]Cu(μ-Cl) 2 2, [o-iPr2P(C6H4)BCy 2]Cu(μ-Cl)2 4, [o-Ph2P(C6H 4)]2BPhCuCl 7, and [o-iPr2P(C 6H4)]2BPhCuCl 8. The presence of Cu→B interactions supported by arene coordination within complexes 2, 7, and 8 has been unambiguously evidenced by NMR spectroscopy and X-ray diffraction studies. The unique η2-BC coordination mode adopted by complexes 7 and 8 has been thoroughly analyzed by density-functional theory (DFT) calculations. © 2009 American Chemical Society.

Domaines: Catalyse; Chimie de coordination; Chimie organique; Polymères; Chimie théorique et/ou physique

M. Sircoglou, Sébastien Bontemps, Maxime Mercy, Karinne Miqueu, S. Ladeira, et al.. Copper(I) complexes derived from mono- and diphosphino-boranes: Cu→b interactions supported by arene coordination. Inorganic Chemistry, 2010, 49 (9), pp.3983-3990. ⟨10.1021/ic901896z⟩. ⟨hal-01613247⟩