摘要

We report the study of the net donating ability of monodentate and bidentate P ligands stemming from secondary phosphine oxides (SPOs). We experimentally measured and/or calculated the frequencies of CO stretching modes of various metal carbonyl complexes. The inferred electronic properties of the ligands span an unprecedented range, going from pi-accepting phosphite-like compounds, to extremely electron-donating ligands outclassing N-heterocyclic carbenes.

  • 出版日期2011-11-4