A series of 15 mononuclear complexes [PdBr(Pr-i(2)-bimy)(L-2)]PF6 (1-15) (Pr-i(2)-bimy = 1,3-diisopropylbenzimidazolin-2-ylidene, L-2 = aromatic 1,2-diimines, diazabutadienes, or methylene-, ethylene- and propylene-bridged di-N-heterocyclic carbenes) and two dicarbene-bridged, dinuclear complexes [Pd2Br4(Pr-i(2)-bimy)(2)(diNHC)] (16 and 17) were synthesized and characterized by multinuclear NMR spectroscopy, electrospray ionization mass spectrometry, and in some cases X-ray diffraction analysis. The influence of the 15 bidentate ligands L-2 on the C-13(carbene) signals of the Pr-i(2)-bimy reporter ligand in the chelate complexes was studied, on the basis of which a facile methodology for the donor strength determination of bidentate ligands was developed.