Inorganic Chemistry, Vol.37, No.12, 2846-2847, 1998
External coordination of europium(III) prior to its encapsulation within a cyclen-based pendant donor macrocycle
Evidence has been obtained for the precoordination of europium(III) to the eight pendant hydroxyl groups of two cyclen-derived macrocycles prior to its penetration into the four oxygen donor and four nitrogen donor binding cavity of one of them.