Modular syntheses of multidentate ligands with variable N-donors: applications to tri- and tetracopper(i) complexes??

Dalton Transactions Pub Date: 2007-06-08 DOI: 10.1039/B705806C

Abstract

A general method for the preparation of multidentate ligands comprised of a multi-imine platform derived from 1,1,1-tris(aminomethyl)ethane or tris(aminoethyl)amine connected to bi- and tridentate N-donor chelates has been developed. The feasibility of the method has been demonstrated through the synthesis and characterization of a large set of these ligand types. Complexation to Cu(I) was accomplished for several cases, yielding tri- and tetracopper(I) complexes that have been characterized in solution by NMR spectroscopy and conductivity, and in the solid state by elemental analysis, mass spectrometry, and/or X-ray crystallography. These complexes are potentially useful for modeling multicopper protein active sites.

Graphical abstract: Modular syntheses of multidentate ligands with variable N-donors: applications to tri- and tetracopper(i) complexes
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