Titanium(4+) and Zirconium(4+) Dichloride Complexes
with Pyridinedicarboxylic Acid Derivatives as Ethylene
Polymerization Catalysts

O. V. Smirnova^a, T. A. Sukhova^{†, b}, M. V. Solov’ev^c, S. S. Galibeev^a,
S. Ch. Gagieva^c, V. A. Tuskaev^c, and B. M. Bulychev^c

^a OOO NIOST, Kuzovlevskii trakt 2, build. 270, Tomsk, 634067 Russia

^b Institute of Problems of Chemical Physics, Russian Academy of Sciences, Chernogolovka, Moscow oblast, 142432 Russia

^c Faculty of Chemistry, Moscow State University, Moscow, 119991 Russia

Received March 29, 2010

Abstract—Titanium(4+) and zirconium(4+) complexes with pyridinedicarboxylic acid derivatives have been
synthesized. The composition and structure of the synthesized 2,6-bis(diphenylhydroxymethyl)pyridine com-
plexes have been corroborated by NMR and IR spectroscopy, and elemental analysis. The complexes activated
with methylaluminoxane (MAO) are catalytically active in ethylene polymerization, Depending on the
Ti/Al_MAO ratio, the catalytic activity of the complexes varies between 90 and 420 kgPE/mol Ti h atm.

DOI: 10.1134/S0036023611040255

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