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Hoffmann, R. A wiki for the life sciences where authorship matters. Nature Genetics (2008)
 
 
 

Sequential metal ion assembly in cyclic phenylazomethine.

Cyclic phenylazomethines with methylene spacers (CPA-M) are obtained by dehydration of diamine with diketone. During the titration of CPA-M 4mer with FeCl(3), we observe two consecutive isosbestic points in the UV-vis spectra. We conclude that complexation occurs in two consecutive steps. Our analysis suggests that the stepwise metal ion assembly is caused by a difference in the basicity of the imine conformers. Metal ion binding first occurs at the Z imines followed by coordination to the E imine. Finally, metal ion assembly in this compound can be controlled electrochemically.[1]

References

  1. Sequential metal ion assembly in cyclic phenylazomethine. Higuchi, M., Shomura, R., Ohtsuka, Y., Hayashi, A., Yamamoto, K., Kurth, D.G. Org. Lett. (2006) [Pubmed]
 
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