Di and trinuclear rare-earth metal complexes supported by 3-amido appended indolyl ligands: synthesis, characterization and catalytic activity towards isoprene 1,4-cis polymerization
作者:Guangchao Zhang、Baojia Deng、Shaowu Wang、Yun Wei、Shuangliu Zhou、Xiancui Zhu、Zeming Huang、Xiaolong Mu
DOI:10.1039/c6dt02922a
日期:——
cyclohexyl, Ind = Indolyl, RE = Yb (1), Er (2), Y (3)) or [η1–μ–η1-3-(CyNCH(CH2SiMe3))Ind]RE-(thf)2(CH2SiMe3)}2 (RE = Yb (4), Er (5), Y (6), Gd (7)), respectively. These two series of dinuclear complexes could be transferred to each other easily by only changing the solvents in the process. Reaction of [Er(CH2SiMe3)3(thf)2] with 1 equiv. of 3-t-butylaminomethylindole 3-(tBuNHCH2)C8H5NH in THF afforded the
合成了不同的二核和三核稀土金属配合物,这些配合物由3-氨基附加的吲哚基配体支撑,并研究了它们对异戊二烯聚合的催化活性。用1当量处理[RE(CH 2 SiMe 3)3(thf)2 ]。的3-(CYN CH)C 8 H ^ 5在甲苯或THF中,得到双核稀土金属烷基具有与中心金属不同hapticities吲哚基配体的络合物NH [η 2:η 1 -μ-η 1 -3-( CyNCH(CH 2 SiMe 3))Ind] RE-(thf)(CH 2 SiMe 3)} 2(CY =环己基,印第安纳州=吲哚基,RE =镱(1),二(2),Y(3))或[η 1 -μ-η 1 -3-(CyNCH(CH 2森达3))工业] RE-(thf)2(CH 2 SiMe 3)} 2(RE = Yb(4),Er(5),Y(6),Gd(7))。仅通过在过程中改变溶剂,这两个系列的双核配合物就可以轻松地彼此转移。[Er(CH