Properties of Manganese(III) Ferrocenyl-β-Diketonato Complexes Revealed by Charge Transfer and Multiplet Splitting in the Mn 2p and Fe 2p X-Ray Photoelectron Envelopes

摘要: A series of ferrocenyl-functionalized β-diketonato manganese(III) complexes, [Mn(FcCOCHCOR)3] with R = CF3, CH3, Ph (phenyl) and Fc (ferrocenyl) was subjected to a systematic XPS study the Mn 2p3/2 Fe core-level photoelectron lines their satellite structures. charge-transfer process from ligand Mn(III) metal center is responsible for prominent shake-up peaks 2p shake-down lines. Multiplet splitting simulations resemble calculated envelope Mn3+ ions well, indicating centers are in high spin state. spectra complexes unsymmetrical ligands (i.e., not Fc) were described two sets multiplet representing fac more stable mer isomers respectively. Stronger electron-donating stabilize than isomers. The sum group electronegativities, ΣχR, pendant side groups influences binding energies charge transfer both lines, ratio main peak intensities, degree covalence Mn–O bond.