Jean-Claude Bunzli - Toward the rational design of lanthanide coordination polymers: A new topological approach

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  Marchal,C., Filinchuk,Y., Imbert,D., Bunzli,J.C.G., Mazzanti,M.   Inorganic Chemistry 2007 46  (16) 6242-6244

  Abstract: The implementation of four bidentate   building blocks into a high-denticity linker with a flexible   spacer leads to a predisposed ligand that allows one to direct   the self-assembly of 1D functional coordination polymers. This is   illustrated by the assembly under mild conditions of the   luminescent metal-organic framework [Tb(Htpabn)]center dot   14H(2)O(infinity) (1; H(4)tpabn =   N,N,N',N'-tetrakis[(6-carboxypyridin-2-yl)methyl]butylenediamine).   The X-ray crystal structure shows that the monoprotonated Htpabn   binds two equivalent lanthanide ions to form a one-directional   staircase chain. The high ligand denticity prevents solvent   coordination and leads to a high luminescence quantum yield (Q =   39%), which is maintained after solvent removal

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