Álvarez María, Galindo Agustín, Pérez Pedro J, Carmona Ernesto
Laboratorio de Catálisis Homogénea , Unidad Asociada al CSIC , CIQSO-Centro de Investigación en Química Sostenible , Departamento de Química , Universidad de Huelva , 21007-Huelva , Spain . Email:
Departamento de Química Inorgánica , Universidad de Sevilla , Apartado 1203 , 41071 Sevilla , Spain . Email:
Chem Sci. 2019 Aug 27;10(37):8541-8546. doi: 10.1039/c9sc03225h. eCollection 2019 Oct 7.
The first examples of stable metal complexes with coordinated ethylene and carbon dioxide ligands are reported. Reaction of tris(ethylene) complexes -M(CH)(PNP) (M = Mo and W; PNP = 2,6-bis(diphenylphosphinomethyl)pyridine) with CO yields the corresponding, mixed -M(CH)(CO)(PNP) derivatives. X-ray studies reveal six-coordinate structures exhibiting η-ethylene and κ-C,O carbon dioxide coordination. Remarkably, the formation of the molybdenum CO adduct occurs also in the solid state at room temperature, under 4 bar of CO, in a nearly quantitative manner.
首次报道了具有配位乙烯和二氧化碳配体的稳定金属配合物实例。三（乙烯）配合物-M(CH)(PNP)（M = Mo和W；PNP = 2,6-双（二苯基膦基甲基）吡啶）与CO反应生成相应的混合-M(CH)(CO)(PNP)衍生物。X射线研究揭示了具有η-乙烯和κ-C,O二氧化碳配位的六配位结构。值得注意的是，在室温下4巴CO压力下，固态中钼CO加合物的形成也几乎是定量的。
