NMR studies on ligand exchange at [IrH2Cl(CO)(PPh3)2] and [IrH2Cl(PPh3)3] by para-hydrogen induced polarisation
Abstract
Enhancement of NMR signals by para-hydrogen induced polarisation allows the rapid characterisation of [IrH2Cl(CO)(PPh3)2] and [IrH2Cl(PPh3)3]: these complexes undergo ligand exchange via a 16-electron complex, [IrH2Cl(PPh3)2], which has a square-based pyramidal structure.