摘要
A magnetochemical comparison between the{FeⅢ_(4)LnⅢ_(2)}-type coordination clusters[Fe_(4)M_(2)(OH)_(2)(N_(3))_(2)(bdea)_(4)(O_(2)CCMe_(3))5(H_(2)O)]NO_(3)·2(EtOH)(M=Dy,Y)and[Fe_(4)M_(2)(OH)_(2)(N_(3))_(2)(bdea)_(4)(O_(2)CCMe_(3))_(4)(NO_(3))_(2)]·3(EtOH)(M=Gd,Eu;H_(2)bdea=N-butyldiethanolamine),of which{Fe_(4)Dy_(2)}reveals slow molecular magnetization relaxation up to 6 K,allows assessment of the exchange coupling governing the clusters’multiplet patterns.
