A Push–Pull Pd<sup>II</sup> Complex with a Ternary Pd–P–C<sup>+</sup> Accepting End and a Key N‐Heterocyclic Carbene–Imid­azoliophosphine Ligand
作者: Laurent DubrulleCorentin PoidevinCarine MaalikiYves CanacChristine LepetitCarine DuhayonRemi Chauvin
作者单位: 1CNRS, LCC (Laboratoire de Chimie de Coordination), 205, Route de Narbonne, BP 44099, 31077 Toulouse Cedex 4, http://www.lcc‐toulouse.fr/lcc/spip.php?article34
2 Université de Toulouse, UPS, INPT, 31077 Toulouse Cedex 4, France, http://www.lcc‐toulouse.fr/lcc/
刊名: European Journal of Inorganic Chemistry, 2016, Vol.2016 (3), pp.313-321
来源数据库: Wiley Journal
DOI: 10.1002/ejic.201500932
关键词: AmidiniophosphineCharge transferDonor–acceptor systemsCarbene ligandsPalladium
原始语种摘要: Abstract(#br)Neutral and cationic PdCl2 complexes based on the neutral frame of a cis ‐chelating N‐heterocyclic carbene (NHC)–imidazolophosphine ligand involving an o ‐phenylene bridge have been devised for comparison of their relative push–pull character. Both target complexes, which are globally isosteric in the Pd coordination sphere, have been prepared in 58–68 % yield by direct coordination of the corresponding cis ‐chelating NHC‐imidazol(i)ophosphine “free ligand”, or by extrusion of a Ph2P+ phosphenium moiety from (imidazoliophosphine)PdII complex precursors. The cationic complex has also been obtained in 64 % yield by selective N ‐methylation of the neutral counterpart. The charge transfer from the NHC donating end (LD) to the...
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