Metal template synthesis of lanthanide cryptates. Crystal structure of a dysprosium cryptate

Abstract

Lanthanide(III) and yttrium(III) ions have been shown to behave as efficient metal templates in the synthesis of cryptates [M ₂ L][NO ₃ ] ₆ ·xH ₂ O·ysolv (M = Y, La, Ce, Pr, Nd, Eu, Gd, Tb, Dy, Ho, Er, Tm or Yb) derived from the 2+3 condensation of tris(2-aminoethyl)amine with 2,6-diformyl-4-methylphenol. The complexes have been characterised by elemental analysis, molar conductivity, mass and IR spectroscopy and the yttrium complex was also characterised by NMR spectroscopy. The crystal structure of the dysprosium complex was determined.