X-ray photoelectron spectra of some Ni mono-and polynuclear complexes

The core-level photoelectron spectra for Ni(bpy)2(OOCCMe3)2, Ni2(H2O)bpy2(OOCCMe3)4, Nibpy(OOCCMe3)2, Ni(C10H4(CH3)2N(SO2C6H4(CH3), Ni2(2,4-Lut)2(OOCCMe3)4, and (2,4-Lut is 2,4-lutidine) are reported and discussed, and the role of ligands in their appearance is determined. X-ray irradiation of some complexes was found to induce removal of some pyridyl rings and oligomerization both at room and liquid nitrogen temperature. The dependence of composition on temperature was used to find correlation between ligand surrounding and the spectra.