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The solutions of rare earth complexes Sm(Phen)2(TTA)(Bipy)(NO3)3 and Sm(L)x(TTA)4-x(NO3)3[L=Phen(1,10-phenanthroline) or Bipy(2,2′-bipyridine), x=4, 3, 2, 1, 0; TTA is 2-thenoyltrifluoacetone] in EtOH(1×10-3 mol/L) were prepared. The coefficients of