Y, Lu, and Gd Complexes of NCO/NCS Pincer Ligands: Synthesis, Characterization, and Catalysis in the<i>cis-</i>1,4-Selective Polymerization of Isoprene
作者:Jingshun Zhang、Zhiqiang Hao、Wei Gao、Lan Xin、Lei Zhang、Ying Mu
DOI:10.1002/asia.201300581
日期:2013.9
adopted distorted pentagonal bipyramidal geometries with the NCO donors and two oxygen atoms from the coordinated THF molecules in equatorial positions and the two chlorine atoms in apical positions. Complex 10 is a dimer in which the two equal moieties are linked by two chlorine atoms and two ClLiCl bridges. In each part, the gadolinium atom adopts a distorted pentagonal bipyramidal geometry. Activated
一系列NCO / NCS钳前体的,3-(AR 2 OCH 2)-2-BR-(AR 1 NCH)C 6 H ^ 3((AR1 NCO AR2)BR,图3a,图3b,图3c,3D),并3-(2,6-我2 ç 6 ħ 3 SCH 2)-2-BR-(AR 1 NCH)C 6 H ^ 3((AR1 NCS我)BR,图4a和图4b)的合成和表征。[ Ar1 NCO Ar2[] Br / [ Ar1 NCS Me ] Br与n BuLi的混合,然后加入稀土金属氯化物,得到了它们相应的稀土金属-夹杂物,即[(Ar1 NCO Ar2)YCl 2(thf)2 ](5a,5b,5c,5d),[(Ar1 NCO Ar2)LuCl 2(thf)2 ](6a,6d),[(Ar1 NCO Ar2)GdCl 2(thf)2 ](7),[ (AR1 NCS我)Y(μ -Cl)} 2 (μ -Cl)的Li(THF)2(μ