Stable divalent germanium, tin and lead amino(ether)-phenolate monomeric complexes: structural features, inclusion heterobimetallic complexes, and ROP catalysis
作者:Lingfang Wang、Sorin-Claudiu Roşca、Valentin Poirier、Sourisak Sinbandhit、Vincent Dorcet、Thierry Roisnel、Jean-François Carpentier、Yann Sarazin
DOI:10.1039/c3dt51681d
日期:——
and lead(II) amido complexes LOi}M(N(SiMe3)2) (M = GeII, PbII) bearing amino(ether)phenolate ligands are readily available using the proteo-ligands LOi}H of general formula 2-CH2NR2-4,6-tBu2-C6H2OH (i = 1, NR2 = N((CH2)2OCH3)2; i = 2, NR2 = NEt2; i = 3, NR2 = aza-15-crown-5) and M(N(SiMe3)2)2 precursors. The molecular structures of these germylenes and plumbylenes, as well as those of LO3}GeCl, LO3}SnCl
稳定的带有氨基(醚)酚盐配体的锗(II)和铅(II)酰胺基络合物LO i } M(N(SiMe 3)2)(M = Ge II,Pb II)易于使用。 LO i } H通式2-CH 2 NR 2 -4,6- t Bu 2 -C 6 H 2 OH(i = 1,NR 2 = N((CH 2)2 OCH 3)2 ; i = 2 ,NR 2 = NEt2 ; i = 3,NR 2 = aza-15-crown-5)和M(N(SiMe 3) 2) 2前体。这些种亚甲基和亚苄基以及LO 3 } GeCl,LO 3 } SnCl和同类LO 4 } Sn II(N(SiMe 3) 2)的分子结构,其中NR 2 = aza-12 -cro-4,已在晶体学上确定。所有配合物均为单体,具有3个坐标的金属中心。酚盐系统地充当N ^ O酚盐二齿配体,金属与O侧臂之间没有相互作用在这些情况下(对于LO 1 }