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Two Eu(Ⅲ) complexes,(tris-4,4,4-trifluoro-1-phenyl-1,3-butanedione)(1,10-phenanthroline)europium(Ⅲ) [Eu(tpb-H) 3(phen)] and(tris-4,4,4-trifluoro-1-phenyl-1,3-butanedione)(2,2'-bipyridine)europium(Ⅲ)[Eu(tpb-H) 3(bipy)] were synthesized from bi-dental o