Abstract

X-ray photoelectron spectra of Co(NO 3) 2·2L with L = tdpo, tppo and tpyrp, were recorded and interpreted. It seems that in these complexes tpyrp is the strongest electron donor, followed by tdpo and then tppo. In these complexes a stronger electron donor ligand results in a more ionic Conitrate bond, and it could thus result in a less stable complex. Paramagnetic Co II satellite structures were observed. The modified Auger parameters (α′) were calculated and used to compare the polarizability of the compounds to each other. Co(NO 3) 2·2tpyrp seems to be the most polarizable of the three complexes, and Co(NO 3) 2·2tppo the least polarizable.

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