Jean-Claude Bunzli - Tridentate binding units as structural patterns for the design of nine-coordinate lanthanide building blocks with predetermined properties

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      Publication Details (including relevant citation   information):

      Piguet,C., Edder,C., Nozary,H., Renaud,F., Rigault,S.,   Bunzli,J.C.G. Journal of Alloys and Compounds  2000 303 94-103

      Abstract: The use of rigid receptors displaying   preorganized cavities for the selective complexation of spherical   ions has shown some limitations for trivalent lanthanide metal   ions, Ln(III), because of the minor variation of their ionic   radii. The recent development of semi-rigid ligands derived from   macrocyclic platforms grafted with complexing pendant arms or   from tripodal podands leads to an unprecedented fine tuning of   the structural, thermodynamic and electronic properties of the   lanthanide complexes, thus opening new perspectives for the   design of functional molecular or supramolecular devices. The   application of the Induced fit concept for the design of covalent   and non-covalent nine-coordinate monometallic and polymetallic   podates is emphasized together with applications as   light-converters, thermal and electrochemical switches and   template agents. The step-by-step evolution from rigidity to   flexibility in lanthanide coordination chemistry is presented and   the basic recognition processes responsible for the tuning of the   metallic site are discussed. (C) 2000 Elsevier Science S.A. All   rights reserved

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