Arene complexation of Sm, Eu, Tm and Yb atoms: a variable temperature spectroscopic investigation
作者:Polly L Arnold、Marina A Petrukhina、Vladimir E Bochenkov、Tatyana I Shabatina、Vyacheslav V Zagorskii、Gleb B Sergeev、F.Geoffrey N Cloke
DOI:10.1016/j.jorganchem.2003.08.028
日期:2003.12
C6H3–tBu3-1,3,5 onto a cold (77 K) surface affords matrices that contain zerovalent bis(η-arene)lanthanide complexes of the form [Ln(η6-C6H3–tBu3-1,3,5)2] as formed in macroscale co-condensation reactions using metal vapour synthetic (MVS) techniques. The reproduction of the experiments in the 77 K matrix allows the detailed characterization of thermally unstable members of the series that were previously
将单原子镧系元素蒸气(Sm,Eu,Tm或Yb)和三叔丁基苯C 6 H 3 - t Bu 3 -1,3,5共沉积到冷(77 K)表面上可得到含有零价bis( η -芳烃)的形式的镧系络合物[LN(η 6 -C 6 H ^ 3 -吨卜3 -1,3,5-)2 ]为形成在使用金属蒸汽合成(MVS)技术宏观共缩合反应。在77 K矩阵中重现实验结果,可以对以前无法实现的系列热不稳定成员进行详细表征。双(芳烃)夹心复合物[Ln(η6 -C 6 H 3 - t Bu 3 -1,3,5)2 ](Ln = Sm,Eu)在低温下稳定,但可能不是共缩合反应的唯一产物,而类似物[Ln( η 6 -C 6 H ^ 3 -吨卜3 -1,3,5-)2 ](LN = m或镱)不能在液氮温度下制成。通过用N和P取代的杂芳烃NC 5 H 2 - t Bu 3 -2,4,6和PC 5 H 2 - t取代三叔丁基苯Bu 3 -2,4