Institut für Anorganische Chemie, Goethe-Universität, Max-von-Laue-Str. 7, D-60438 Frankfurt, Germany.
Dalton Trans. 2012 Jun 14;41(22):6671-6. doi: 10.1039/c2dt00031h. Epub 2012 Apr 25.
The dimeric iron carbonyl CpFe(CO)(2) and the iodosilanes tBu(2)RSiI were obtained from the reaction of [CpFe(CO)(2)]I with the silanides Na[SiRtBu(2)] (R = Me, tBu) in THF. By the reactions of [CpFe(CO)(2)]I and Na[SiRtBu(2)] (R = Me, tBu) the disilanes tBu(2)RSiSiRtBu(2) (R = Me, tBu) were additionally formed using more than one equivalent of the silanide. In this context it should be noted that reduction of CpFe(CO)(2) with Na[SitBu(3)] gives the disilanes tBu(3)SiSitBu(3) along with the sodium ferrate [(Na(18-crown-6))(2)Cp][CpFe(CO)(2)]. The potassium analogue [(K(18-crown-6))(2)Cp][CpFe(CO)(2)] (orthorhombic, space group Pmc2(1)), however, could be isolated as a minor product from the reaction of [CpFe(CO)(2)]I with [K(18-crown-6)][PtBu(2)BH(3)]. The reaction of CpFe(CO)(2) with the potassium benzophenone ketyl radical and subsequent treatment with 18-crown-6 yielded the ferrate [K(18-crown-6)][CpFe(CO)(2)] in THF at room temperature. The crown ether complex [K(18-crown-6)][CpFe(CO)(2)] was analyzed using X-ray crystallography (orthorhombic, space group Pna2(1)) and its thermal behaviour was investigated.
二聚铁羰基 [CpFe(CO)(2)]（2）和碘硅烷 tBu(2)RSiI 是通过 [CpFe(CO)(2)]I 与硅烷化物 Na[SiRtBu(2)]（R = Me，tBu）在 THF 中的反应得到的。通过 [CpFe(CO)(2)]I 和 Na[SiRtBu(2)]（R = Me，tBu）的反应，当使用超过一当量的硅烷化物时，还会形成二硅烷 tBu(2)RSiSiRtBu(2)（R = Me，tBu）。在这种情况下，应该注意到，用 Na[SitBu(3)]还原 CpFe(CO)(2)会得到二硅烷 tBu(3)SiSitBu(3)以及铁酸钠[(Na(18-冠-6))(2)Cp][CpFe(CO)(2)]。然而，[(K(18-冠-6))(2)Cp][CpFe(CO)(2)]（正交晶系，空间群 Pmc2(1))的钾类似物可以从 [CpFe(CO)(2)]I 与[K(18-冠-6)][PtBu(2)BH(3)]的反应中作为次要产物分离出来。CpFe(CO)(2)与苯甲酮酮自由基的反应，以及随后用 18-冠-6处理，在室温下在 THF 中得到铁酸盐[K(18-冠-6)][CpFe(CO)(2)]。使用 X 射线晶体学（正交晶系，空间群 Pna2(1))分析了冠醚配合物[K(18-冠-6)][CpFe(CO)(2)]，并研究了其热行为。
