Abstract: The comparative studies on the chromatographic affinity of ferrocenylimines and their derivatives of mercury have showed that the cyclomercurated compounds exhibit higher R_f values than the corresponding starting ferrocenylimines,which has been explained in terms of the N→Hg intramolecular coordination,The substituent effects on the R_f values show that the higher the electron density in the imino nitrogen atom is,the lower the R_f value is.The examination of UV-Vis spectra of these compounds showed that an intramolecular coordination,N→Hg,exists in the molecules of cyclomercurated compounds,The effect of the substituents situated at the carbon atom of the imine group and in the N-phenyl ring on the UV-Vis spectra was investigated.Compared with the λ_max of the ferrocenylimine in which there is no substituent in N-phenyl ring,a good linear relationship was found between the △λ_max of the π-π^*CTband and the Hammett-Brown constants σ⁺.In addition,the application of IRrules for characterizing the structures of substituted ferrocenes to the system studied has also been examined.

Key words: Ferrocenylimines, Cyclomercurated compounds, Chromatographic features, UV-Vis spectra, IR spectra