Abstract: The complexes of a series of rare earths with Ge-132 have been prepared. The carboxyl anions of Ge-132 molecule were coordinated to rare earth ion with chelate style. In the complexes molecule, the GeO_3/2 group of Ge-132 were hydrolyzed to become Ge(OH)₃ group, and later does not coordinate with rare earth ions. All of the complexes possess similar properties. In aqueous solution of pH6 and 50 ℃, these complexes can obviously selectively catalytically hydrolize the phosphatide bond of 5'-AMPand 5'-dAMPinto phosphatic acid and riboside.

Key words: Rare earth complex with Ge-132, 5'-AMP, 5'-dAMP, Catalysis hydrolysis