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New open-chain tetraamines containing ferrocene, 1,1?-bis(5-methyl-2,5-diazahexyl)ferrocene L1 and 1,1?-bis(2,5-diazahexyl)ferrocene L2, have been synthesized and characterized. Their protonation behaviour has been studied by potentiometric titrations in water (0.1 mol dm-3 KNO3, 25C). The co-ordination ability of L1 towards the divalent metal ions Ni2+, Cu2+, Zn2+, Cd2+ and Pb2+ has also been studied. It forms both mono-and bi-nuclear complexes with Ni2+, Cu2+, Zn2+ and Cd2+ whereas only mononuclear species were found for Pb2+. The electrochemical behaviour of L1 has been studied in CH2Cl2 and water, E1/2 is pH-dependent and from the E1/2 vs. pH curve the protonation constants of oxidized L1 (FeIII) were determined. Similar electrochemical experiments were carried out for L1-H+-M2+ systems. The good agreement between the E1/2 vs. pH and z vs. pH curves (z = average charge calculated from potentiometric data) appears to suggest that the ferrocene-substrate interaction is mainly electrostatic.
Molecules bearing a redox-active spacer. Synthesis and co-ordination behaviour of 1,1?-bis(5-methyl-2,5-diazahexyl)ferrocene
The result showed that such a combination of chemo- and biocatalysis improved the catalytic yield more than two times compared with that of sole metal catalysis. We will look forword to the important role of 1271-48-3, and how the biochemistry of the body works.Recommanded Product: 1271-48-3
Reference：
Iron Catalysis in Organic Synthesis | Chemical Reviews,
Iron Catalysis in Organic Synthesis: A Critical Assessment of What It Takes To Make This Base Metal a Multitasking Champion