Two New Benzoate-di(methylcyclopentadienyl)ytterbium(III) Complexes: [Yb(MeCp)2(O2CC6F5)]2 and [Yb(MeCp)2(O2C-o-HC6F4)]2
作者:Glen B. Deacon、Catharina C. Quitmann、Klaus Müller-Buschbaum、Gerd Meyer
DOI:10.1002/zaac.200390098
日期:2003.4
Transparent orange crystals of [Yb(MeCp)2(O2CC6F5)]2 and [Yb(MeCp)2(O2C-o-HC6F4)]2 were obtained by oxidation of Yb(MeCp)2 with M(O2CR) (M = 1/2 Hg, Tl; R = C6F5, o-HC6F4) in tetrahydrofuran. They have a dimeric structure with bridging bidentate (O, O')-benzoate groups and eight coordinated ytterbium. Both crystallise isotypic in the orthorhombic space group Pbca. Room temperature as well as low temperature