MeCN. Overall this corresponds to an intramolecular migration of the methyl from one rhodium to the other. The other complexes (2) behave similarly but (2d) and (2f) show the ‘frozen-out’ spectra even at +22 °C. Under identical conditions the complexes (9)–(11) exhibited similar behaviour to (2a), but the rates of alkyl migration were ca. 10 times faster. Complex (2a) also disproportionated to give
所述的反应反式二甲基配合物[(C 5我5)的Rh} 2(μ-CH 2)2我2 ](1)与一个当量的在
乙腈中的存在酸,得到甲基-
乙腈络合物[(C 5我5)的Rh} 2(μ-CH 2)2(ME)(MeCN中)] PF 6(2A);
乙腈可以被其他
配体取代,得到[(C 5 Me 5)Rh} 2-(µ-CH 2)2(Me)(L)] PF 6 [L = Bu tCN(2b),PhCN(2c),
吡啶(2d),2-
甲基吡啶(2e)或CO(2f)]。与卤化物(2a)中的反应,得到[(C 5我5)的Rh} 2(μ-CH 2)2(Me)中X] [X = Cl(上3)或I(4)]。其他单烷基络合物[(C 5 Me 5)Rh} 2(µ-CH 2)2(R)(MeCN)] PF 6 [R = Et(9),Pr n(10)或Bu n(11 )]类似地由适当的二烷基络合物[(C 5 Me 5)Rh} 2(µ-CH