Novel zirconium complexes containing a bidentate phenoxybenzotriazole ligand

► 2-(2H-benzo[d][1,2,3]triazol-2-yl)-4,6-di-tert-pentylphenol was used as ligand. ► CpZrCl3 and Zr(NMe2)4 were used as metal precursors. ► Monomeric or dimeric zirconium complexes were prepared. ► Zirconium complexes were used as catalysts for ethylene polymerization.