401465-90-5Relevant academic research and scientific papers
Properties of some ferrocene macrocyclic dioxotetraamines: The roles of aromatic side-arms
Xue, Peng,Yuan, Quan,Fu, Enqin,Wu, Chengtai
, p. 327 - 334 (2001)
The coordination chemistry and electrochemical behavior of a series of ferrocene macrocyclic dioxotetraamines 1-4 each of which bears a pendant aromatic group and a malonic diamide fragment in their framework were investigated by electronic absorption spectroscopy and cyclic voltammetry. For the purpose of comparison, their model compounds 5-8 were also synthesized and studied. The stoichiometry of 1:1 for the complexes has been confirmed by FAB mass spectroscopy and UV-vis titration of Cu(II) ion with ligands 4 and 8. Stability constants for the equilibrium of the above complexes have been evaluated. The ferrocene ligands 1-4 can electrochemically recognize the transition metal ions (Co2+, Ni2+ and Cu2+), while those ligands with a complexible atom in the side-arm can stabilize selectively the uncommon state of Ni(III).
