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

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

CATALYSIS COMMUNICATIONS, vol.4, no.10, pp.549-553, 2003 (SCI-Expanded) identifier identifier

  • Publication Type: Article / Article
  • Volume: 4 Issue: 10
  • Publication Date: 2003
  • Doi Number: 10.1016/j.catcom.2003.08.008
  • Journal Indexes: Science Citation Index Expanded (SCI-EXPANDED), Scopus
  • Page Numbers: pp.549-553
  • Abdullah Gül University Affiliated: No


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.