MALDI TOF mass study on oligomerization of Pd(OAc)2(L)2 (L = pyridine derivatives): relevance to Pd black formation in Pd-catalyzed air oxidation of alcohols.

[reaction: see text] Oligomerization of Pd(OAc)2(L)2 (L = pyridine derivatives), a catalyst for the air oxidation of alcohols, is studied with MALDI TOF mass, using dithranol as the matrix. The degree of the Pd oligomerization is influenced by the pyridine ligands, and this ligand effect is similar to one observed for Pd black formation in the catalysis.