Abstract
The complexes [PdX2Py]2(di-NHC) (X = Br or Cl) in which di-NHC represents a di-N-heterocyclic carbene, featuring a rigid phenylene spacer between the carbene units, have been prepared from reactions of the corresponding diimidazolium halide salts with PdCl2 in pyridine. The molecular structures of three of the complexes were determined by X-ray diffraction studies. The influences of different substitutions and of the halide ligand (Br or Cl) on the structure and reactivity of the complexes have been studied. The catalytic activity of the binuclear palladium complexes was tested in the Mizoroki–Heck reaction of styrene with bromobenzene.
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We are grateful to the National and Provincial Innovative Entrepreneurial Training Programs for Undergraduate Project (HXKYZD201203, 201310320047, and 201310320047Z) and PAPD for financial support.
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Guangying Wang and Gang Liu have contributed equally to this work.
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Wang, G., Liu, G., Du, Y. et al. Synthesis of binuclear palladium complexes with a rigid phenylene bridge linker. Transition Met Chem 39, 691–698 (2014). https://doi.org/10.1007/s11243-014-9851-8
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DOI: https://doi.org/10.1007/s11243-014-9851-8