Synthesis, Structures and Reactivity of Lanthanoid(II) Formamidinates of Varying Steric Bulk
作者:Marcus L. Cole、Glen B. Deacon、Craig M. Forsyth、Peter C. Junk、Kristina Konstas、Jun Wang、Henry Bittig、Daniel Werner
DOI:10.1002/chem.201202861
日期:2013.1.21
New reactive, divalent lanthanoid formamidinates [Yb(Form)2(thf)2] (Form=[RNCHNR]; R=o‐MeC6H4 (o‐TolForm; 1), 2,6‐Me2C6H3 (XylForm; 2), 2,4,6‐Me3C6H2 (MesForm; 3), 2,6‐Et2C6H3 (EtForm; 4), o‐PhC6H4 (o‐PhPhForm; 5), 2,6‐iPr2C6H3 (DippForm; 6), o‐HC6F4 (TFForm; 7)) and [Eu(DippForm)2(thf)2] (8) have been prepared by redox transmetallation/protolysis reactions between an excess of a lanthanoid metal,
新的反应性二价镧系甲酰胺酸盐[Yb(Form)2(thf)2 ](Form = [RNCHNR]; R = o- MeC 6 H 4(o- TolForm; 1),2,6-Me 2 C 6 H 3(XylForm; 2),2,4,6-Me 3 C 6 H 2(MesForm; 3),2,6-Et 2 C 6 H 3(EtForm; 4),o -PhC 6 H 4(o- PhPhForm ; 5),2,6‐i Pr 2 C 6 H 3(DippForm; 6),o -HC 6 F 4(TFForm; 7))和[Eu(DippForm)2(thf)2 ](8)是通过在两过量的镧系金属Hg(C 6 F 5)2和相应的甲am(HForm)。X射线晶体结构2 – 6和8表明它们是具有六配位镧系元素原子的单体,与N,N螯合'-形式的配体和顺式-thf供体。但是,[Yb(TFForm)2(thf)2 ]