Unprecedented lanthanide-containing coordination polymers constructed from hexanuclear molecular building blocks: {[Ln6O(OH)8] (NO3)2(bdc)(Hbdc)2•2NO3• H2bdc}∞

  • Calvez G
  • Daiguebonne C
  • Guillou O
  • 20


    Mendeley users who have this article in their library.
  • 31


    Citations of this article.


Reactions in acetonitrile between 1,4-benzene-dicarboxylic acid (C(8)H(6)O(4)) and a hexanuclear complex of lanthanide [Ln(6)O(OH)(8)(NO(3))(6).2NO(3)] with Ln = Y or Tb lead to 1D-coordination polymers with the general chemical formula {[Ln(6)O(OH)(8)](NO(3))(2)(bdc)(Hbdc)(2).2NO(3).H(2)bdc}(infinity) where H(2)bdc stands for 1,4-benzene-dicarboxylic acid (or terephthalic acid). These two compounds are isostructural. The crystal structure has been solved on the basis of the X-ray powder diffraction diagram of the Y-containing compound. This compound crystallizes in the triclinic system, space group P1 (no. 2) with a = 10.4956(6) A, b = 11.529(2) A, c = 12.357(2) A, alpha = 86.869(9) degrees , beta = 114.272(6) degrees , gamma = 71.624(7) degrees , V = 1264.02 A(3), and Z = 2. The crystal structure can be described as the juxtaposition of linear chains of hexanuclear entities linked to each other by terephthalate ligands. Two additional partially protonated terephthalate ligands spreading laterally to the chain are bound to each hexanuclear entity. Another diprotonated terephthalic ligand and two nitrate ions ensuring the electroneutrality of the crystal structure lie in the interchain space. These two compounds are thermally stable until 200 degrees C. Thanks to a so-called antenna effect, the Tb-containing compound, despite short intermetallic distances, exhibits a strong luminescence under UV irradiation.

Get free article suggestions today

Mendeley saves you time finding and organizing research

Sign up here
Already have an account ?Sign in

Find this document


  • Guillaume Calvez

  • Carole Daiguebonne

  • Olivier Guillou

Cite this document

Choose a citation style from the tabs below

Save time finding and organizing research with Mendeley

Sign up for free