Expanding the LnZ3/alkali-metal reduction system to organometallic and heteroleptic precursors:: Formation of dinitrogen derivatives of lanthanum

被引:71
作者
Evans, WJ [1 ]
Lee, DS [1 ]
Lie, C [1 ]
Ziller, JW [1 ]
机构
[1] Univ Calif Irvine, Dept Chem, Irvine, CA 92697 USA
关键词
alkali metals; cyclopentaclienyl ligands; lanthanides; nitrogen fixation; reduction;
D O I
10.1002/anie.200461170
中图分类号
O6 [化学];
学科分类号
0703 ;
摘要
Dinitrogen reduction with diamagnetic trivalent lanthanum complexes is possible for the first time using a combination of a trivalent metallocene and potassium graphite. Both [(C5Me4H)3La] and [(C5Me5)2La][BPh4] are viable starting materials and reduce dinitrogen in the presence of KC8 to give [N=N]2- containing structures (see picture).
引用
收藏
页码:5517 / 5519
页数:3
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