Apparently improved energy barrier of Dy(III) SMMs by adopting the bridging bipyrimidine ligand

Eight complexes LnIII(tfa)3(dmpy) (Ln = Gd 1, Dy 2, tfa = 1,1,1-trifluoro-2,4-pentanedione dmpy = 4,4'-dimethyl-2,2'-bipyridyl), LnIII(tfpa)3(dmpy) (Ln = Gd 3, Dy 4, tfpa =4,4,4-trifluoro-1-phenyl-1,3-butanedione), [LnIII(tfa)3]2(bpyd) (Ln = Gd 5, Dy...