Investigation on the Protonation of a Trisubstituted [Fe<sub>2</sub>(CO)<sub>3</sub>(PPh<sub>3</sub>)(κ<sup>2</sup>-phen)(μ-pdt)] Complex: Rotated versus Unrotated Intermediate Pathways
作者:Pierre-Yves Orain、Jean-François Capon、Frédéric Gloaguen、François Y. Pétillon、Philippe Schollhammer、Jean Talarmin、Giuseppe Zampella、Luca De Gioia、Thierry Roisnel
DOI:10.1021/ic100108h
日期:2010.6.7
The substitution of PPh3 for a carbonyl group at the Fe(CO)(3)} moiety in [Fe-2(CO)(4)(kappa(2)-phen)(mu-pdt)] results in the formation of the trisubstituted complex [Fe-2(CO)(3)(PPh3)(kappa(2)-phen)(mu-pdt)] (2). Unlike its tetracarbonyl precursor, the protonation of 2 at low temperature does not afford any apparent transient terminal hydride species. Hydride formation for [Fe-2(CO)(3)(L)(kappa(2)-phen)(mu-pdt)] (L = PPh3, CO) species is also studied by density functional theory calculations, which show that activation barriers to give terminal and bridging hydrides can be remarkably close for this class of organometallic compounds.