The reaction of Dy(N(Si(CH_(3))_(3))_(2))_(3)with three equivalents of HW(CO)_(3)Cp(Cp=cyclopentadienyl)furnished the first structurally characterized isocarbonyl complex of Dy^(3+),[{CpW(CO)_(2)(μ-CO)}_(3)Dy(thf)_(5...The reaction of Dy(N(Si(CH_(3))_(3))_(2))_(3)with three equivalents of HW(CO)_(3)Cp(Cp=cyclopentadienyl)furnished the first structurally characterized isocarbonyl complex of Dy^(3+),[{CpW(CO)_(2)(μ-CO)}_(3)Dy(thf)_(5)](1).Solid dilution via cocrystallization with the isostrucutral Y^(3+)analogue of 1 allowed for the observation of temperature dependent signals in the out-of-phase component of the ac magnetic susceptibility in the presence of an applied dc field.An effective barrier to magnetization reversal of 12.6 cm^(−1)could be extracted for compound 1 under these conditions.展开更多
基金MN is grateful to the TAMU Chemistry Department for generous start-up fundsfinancial support by the Welch Foundation(A-1880).
文摘The reaction of Dy(N(Si(CH_(3))_(3))_(2))_(3)with three equivalents of HW(CO)_(3)Cp(Cp=cyclopentadienyl)furnished the first structurally characterized isocarbonyl complex of Dy^(3+),[{CpW(CO)_(2)(μ-CO)}_(3)Dy(thf)_(5)](1).Solid dilution via cocrystallization with the isostrucutral Y^(3+)analogue of 1 allowed for the observation of temperature dependent signals in the out-of-phase component of the ac magnetic susceptibility in the presence of an applied dc field.An effective barrier to magnetization reversal of 12.6 cm^(−1)could be extracted for compound 1 under these conditions.
