1192307-03-1Relevant articles and documents
Bis(4-methylthiazolyl)isoindoline (4-mebti) complexes of palladium: Cationic [PdII(4-Mebti)L]+ species with a L = neutral group XIV or group XV donor ligand
Broering, Martin,Kleeberg, Christian
, p. 1769 - 1776 (2011)
Ligand exchange has been studied on the chlorido palladium(II) complex of the bis(4-methylthiazolylimino)isoindoline ligand, [Pd(4-Mebti)Cl], with a number of neutral group XIV and group XV donor ligands in the presence of the sodium salt of tetrakis[3,5-bis(trifluoromethyl)phenyl]borate NaB(Ar F)4. Seven new cationic compounds with L = PMe 3, tBuNH2, PhNH2, py, 2,6-Me2py, MeCN and MeNC were obtained as B(ArF)4- salts, and were characterized by analytic, spectroscopic and crystallographic means. Further attempts to observe ligand exchange reactions with either the softer AsMe3 or SbMe3 donor ligands or with different carbenes were unsuccessful and led to decomposed material or to mixtures of different compounds. Most of the crystallographically characterized complexes have been found to reside in a pseudoplanar conformation regardless of the size or cone angle of the external donor ligand. The derivatives carrying an sp 2-type donor atom (L = py, 2,6-Me2py), however, adopt helical forms in the solid state. 1H NMR and UV/Vis spectroscopic data suggest that this helicity is also present in solution. The expected chirality, however, could not be observed due to the lack of diastereotopic ligand protons. Copyright