Iron(III)-Chelex resin complex as a prototypical heterogeneous catalyst for phosphodiester hydrolysis

Lykourinou-Tibbs V., Ercan A. , MİNG L. J.

CATALYSIS COMMUNICATIONS, cilt.4, sa.10, ss.549-553, 2003 (SCI İndekslerine Giren Dergi) identifier identifier

  • Cilt numarası: 4 Konu: 10
  • Basım Tarihi: 2003
  • Doi Numarası: 10.1016/j.catcom.2003.08.008
  • Sayfa Sayıları: ss.549-553


The Fe3+ complex (but not Cu2+ and Zn2+ complexes) of the cross-linked polystyrene Chelex resin is found to be an efficient and selective catalyst toward phosphodiester hydrolysis. The hydrolysis of bis-(p-nitrophenyl)phosphate (BNPP) by Fe3+-helex complex exhibits a pre-equilibrium kinetics with a second-order catalytic proficiency (in terms of rate = k(2) [Fe-Chelex][BNPP]) reaching one million at ambient temperature and pH 9.0. (C) 2003 Published by Elsevier B.V.