10.1002/ejic.202000425
The research focuses on the synthesis of non-symmetric ruthenium(II) POCOP pincer complexes and their subsequent conversion into bimetallic derivatives through π-coordination of arenophile fragments. The study utilizes reactants such as [RuCl2(COD)]n, various POCOP pincer ligands based on the naphthoresorcinate backbone, and different organometallic fragments like [RuCp]+, [RuCp*]+, and [FeCp*]+. The experiments involve deprotonation of naphthoresorcinol by triethylamine, followed by reaction with chlorophosphines to form the POCOP ligands, and further coordination with ruthenium precursors to obtain the desired complexes. Single-crystal X-ray diffraction, DFT calculations, and various spectroscopic techniques (NMR, FTIR, and MS) were employed to characterize the molecular structures and confirm the formation of the complexes. The research also explores the selective synthesis of either Ru-Cl or Ru-H complexes by manipulating reaction conditions and investigates the potential of these complexes in catalytic processes, such as the reduction of carbon dioxide.
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