The ditopic macrocyclic ligand 1,4,7,10,19,22,25,28-octaaza-13,16,31, 34-tetraoxa-cyclohexatriacontane (L) forms very stable mono- and bi-nuclear Cu 2+ complexes in aqueous solution. The stability constants determined for these complexes are reported. In the solid state, the binuclear complex gives rise to the {[(Cu 2L)Cl]⊃Cl(H 2O)}(ClO 4) 2 compound in which both direct and indirect activation of anion binding promoted by Cu 2+, as well as the structuring effect of this metal cation on anion binding, synergistically participate in the assembly of a polymeric inclusion compound.
Anion binding by a binuclear Cu(II) polyamine macrocyclic complex / C.Bazzicalupi; A.Bencini; A.Bianchi; L.Borsari; S.Ciattini; A.Danesi; C.Giorgi; F.Lombardini; B.Valtancoli. - In: JOURNAL OF SUPRAMOLECULAR CHEMISTRY. - ISSN 1472-7862. - STAMPA. - 2:(2002), pp. 49-52. [10.1016/S1472-7862(02)00077-1]
Anion binding by a binuclear Cu(II) polyamine macrocyclic complex
BAZZICALUPI, CARLA;BENCINI, ANDREA;BIANCHI, ANTONIO;CIATTINI, SAMUELE;GIORGI, CLAUDIA;VALTANCOLI, BARBARA
2002
Abstract
The ditopic macrocyclic ligand 1,4,7,10,19,22,25,28-octaaza-13,16,31, 34-tetraoxa-cyclohexatriacontane (L) forms very stable mono- and bi-nuclear Cu 2+ complexes in aqueous solution. The stability constants determined for these complexes are reported. In the solid state, the binuclear complex gives rise to the {[(Cu 2L)Cl]⊃Cl(H 2O)}(ClO 4) 2 compound in which both direct and indirect activation of anion binding promoted by Cu 2+, as well as the structuring effect of this metal cation on anion binding, synergistically participate in the assembly of a polymeric inclusion compound.
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