AnovelSchiffbase(TAMET)wassynthesizedbythecondensationoftetraglycolaldehydewithmethionineandamildoxidantCrO3·(C5H5N)2wasselectedforthereaction.SevennewrareearthcomplexeswiththisSchiffbasehavebeensynthesizedandcharacterizedbyelementalanalysis,TG-DTA,molarconductivity,magneticsusceptibilityandIR,especially1HNMRspectra.Informationwasobtainedfromreflectancespectraandthecoordinationofsulfuratomtorareearthswasdiscussed.TheexperimentalresultsshowthatthesecompoundshavesomebiologicalactivityandcoulddisposeofO2.