Synthesis and characterization of fluorophenylpalladium pincer complexes: electronic properties of some pincer ligands evaluated by multinuclear NMR spectroscopy and electrochemical studiesстатья
Статья опубликована в высокорейтинговом журнале
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Дата последнего поиска статьи во внешних источниках: 28 июля 2014 г.
Аннотация:Palladium fluorophenyl complexes with different pincer ligands Pd(Ar)[2,6-(tBu2PCH2)2C6H3] (13), Pd(Ar)[2,6-(tBu2PO)2C6H3] (14), Pd(Ar)[{2,5-(tBu2PCH2)2C5H2}Fe(C5H5)] (15), and
Pd(Ar)[{2,5-(tBu2PCH2)2C5H2}Ru(C5H5)] (16) were synthesized by the reaction of LiAr (Ar =
C6H4F-4) with the respective trifluoroacetate palladium pincer complexes 9–12. The molecular
structures of 14 and 16 were determined by an X-ray crystallographic method. Complexes 13–16 and {Pd(Ar)[{2,5-(tBu2PCH2)2C5H2}Fe(C5H5)]}PF6 (17) were studied by multinuclear NMR spectroscopy and cyclic voltammetry. On the basis of 19F NMR chemical shifts and 1J(13C–19F) coupling constants, as well as PdII/PdIV oxidation potentials, electronic characteristics of the corresponding pincer ligands were elucidated.