Reduction of dinitrogen to planar bimetallic M2(μ-η2:η2-N2) complexes of Y, Ho, Tm, and Lu using the K/Ln[N(SiMe3)2]3 reduction system
Reduction of dinitrogen to planar bimetallic M2(μ-η2:η2-N2) complexes of Y, Ho, Tm, and Lu using the K/Ln[N(SiMe3)2]3 reduction system
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DOI:
10.1021/ja036923m
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发表时间:
2004-01-21
影响因子:
15
通讯作者:
Ziller, JW
中科院分区:
文献类型:
--
作者:
Evans, WJ;Lee, DS;Ziller, JW
The reaction of Ln[N(SiMe3)2]3with K under N2in THF forms the dinitrogen complexes {[(Me3Si)2N]2(THF)Ln}2(μ-η2:η2-N2) (Ln = Y, Ho, Tm, and Lu) previously available only for lanthanides with highly reducing divalent states, that is, Tm, Dy, and Nd. The Y and Lu complexes are the first diamagnetic complexes of this type. The Ln2N2moiety is planar, and the 1.268(3) and 1.285(4) Å NN distances in these complexes are consistent with the presence of (N2)2-.