A monoanionic pentadentate ligand platform for scandium–pnictogen multiple bonds†
Abstract
A new monoanionic pentadentate ligand is designed to accommodate Sc = E bonds (E = N, P). The imido complex is stable enough to isolate and characterize, and reacts rapidly with CO2. The phosphinidene, on the other hand, is highly reactive and induces C–C bond cleavage to yield a phosphido-pyridyl complex which also undergoes rapid reacton with CO2.