Issue 27, 2011

Synthesis and characterization of fluorophenylpalladium pincer complexes: electronic properties of some pincer ligands evaluated by multinuclear NMR spectroscopy and electrochemical studies

Abstract

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 9ā€“12. The molecular structures of 14 and 16 were determined by an X-ray crystallographic method. Complexes 13ā€“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(13Cā€“19F) coupling constants, as well as PdII/PdIV oxidation potentials, electronic characteristics of the corresponding pincer ligands were elucidated.

Graphical abstract: Synthesis and characterization of fluorophenylpalladium pincer complexes: electronic properties of some pincer ligands evaluated by multinuclear NMR spectroscopy and electrochemical studies

Supplementary files

Article information

Article type
Paper
Submitted
16 Mar 2011
Accepted
27 Apr 2011
First published
10 Jun 2011

Dalton Trans., 2011,40, 7201-7209

Synthesis and characterization of fluorophenylpalladium pincer complexes: electronic properties of some pincer ligands evaluated by multinuclear NMR spectroscopy and electrochemical studies

A. V. Polukeev, S. A. Kuklin, P. V. Petrovskii, S. M. Peregudova, A. F. Smol'yakov, F. M. Dolgushin and A. A. Koridze, Dalton Trans., 2011, 40, 7201 DOI: 10.1039/C1DT10446B

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