A Scandium‐Stabilized Diisophosphaethynolate Ligand: [OCPPCO]4− |
| |
| Authors: | Lauren N Grant Prof Balazs Pinter Brian C Manor Prof?Dr Hansjörg Grützmacher Prof?Dr Daniel J Mindiola |
| |
| Institution: | 1. Department of Chemistry, University of Pennsylvania, Philadelphia, PA, USA;2. Department of General Chemistry, Vrije Universiteit Brussel, Brussels, Belgium;3. Department of Chemistry and Applied Biosciences, ETH Zürich, Zürich, Switzerland |
| |
| Abstract: | The first example of the OCPPCO ligand, diisophosphaethynolate, is reported via reductive coupling of a Sc?OCP precursor. Upon reduction with KC8, isolation of the dinuclear complex, namely K(OEt2)]2(nacnac)Sc(OAr)]2(OCPPCO), is observed, leading to a unique motif OCPPCO]4?, stabilized by two scandium centers. Detailed NMR spectra of all complexes as well as IR and single crystal X‐ray studies were obtained to fully elucidate the nature of these complexes in solution as well as in the solid state. Theory is combined to probe the electronic structure and orbitals responsible for the bonding interactions in the Sc?OCPPCO?Sc skeleton but also to compare to the linear mode observed in the precursor. |
| |
| Keywords: | OCP reduction OCPPCO phosphorus radical coupling scandium |
|
|
