1616255-21-0Relevant articles and documents
Synthesis and structural characterisation of Palladium(ii) complexes with N,N′,N-tridentate N′-substituted N,N-Di(2-picolyl)amines and their application to methyl methacrylate polymerisation
Kim, Sunghoon,Kim, Dongil,Song, Yujin,Lee, Ha-Jin,Lee, Hyosun
, p. 953 - 961 (2014/07/07)
The reaction of [Pd(CH3CN)2Cl2] with N′-substituted N,N-di(2-picolyl)amine-based ancillary ligands, for example N,N-di(2-picolyl)cyclohexylmethylamine (L1), N,N-di(2-picolyl)benzylamine (L2), N,N-di(2-picolyl)aniline (L3), and 1,4-bis[bis(2-pyridylmethyl)aminomethyl] benzene (L4), in the presence of NaClO4 in ethanol yields a new series of [(NN′N)PdCl]X (X≤ClO4, Cl) complexes, i.e. mononuclear [LnPdCl]ClO4 (Ln≤L1, L2, L 3) and binuclear [L4Pd2Cl2]Cl 2. X-Ray crystallographic analysis determined that the Pd atom in complexes [(NN′N)PdCl]X showed a slightly distorted square-planar geometry involving three nitrogen atoms and a chlorido ligand. Moreover, the unit cell included a ClO4-or Cl-anion as the counterion. The complex [L1PdCl]ClO4 showed the highest catalytic activity for the polymerisation of methyl methacrylate in the presence of modified methylaluminoxane at 60°C among the mononuclear PdII complexes. Specifically, the activity of binuclear [L4Pd2Cl 2]Cl2 was 2-fold higher than the corresponding mononuclear [L2PdCl]ClO4 per active palladium metal centre. CSIRO 2014.
