Preparation and structural characterization of the intermediate complex [Er{H2C8H16N4(CH2COO)(3) (CH2(Ph)PO2)}(H2O)(2)](2)Cl-2 center dot xH(2)O in the reaction of Er3+ and the dota-type ligand. An interesting example of two stereoforms of a lanthanide

Abstract

The synthesis of a new H(4)do3aPPh ligand related to the 1,4,7,10- tetraazacyclododecane1,4,7,10- tetraacetate (dota) family is described together with its erbium(III) complexes.

Keywords

• X-ray diffraction
• lanthanoids
• lanthanide complexes
• erbium
• stereochemistry
• dota ligand
• azacrown compounds