Crystal structure of an unsymmetrical Schiff base, immobilization of its cobalt and manganese complexes on a silica support, and catalytic studies

Durak D., Delikanli A., DEMETGÜL C., KANİ İ., SERİN S.

TRANSITION METAL CHEMISTRY, cilt.38, ss.199-206, 2013 (SCI İndekslerine Giren Dergi) identifier identifier

  • Cilt numarası: 38 Konu: 2
  • Basım Tarihi: 2013
  • Doi Numarası: 10.1007/s11243-012-9678-0
  • Sayfa Sayıları: ss.199-206


An unsymmetrical tetradentate Schiff base (H2L) was synthesized by the reaction of 3-methoxysalicylaldehyde, o-phenylenediamine, and salicylaldehyde in EtOH. H2L was characterized by single-crystallographic X-ray analysis. Its Co(II) and Mn(III) complexes ([CoL] and [MnLCl]) were prepared and immobilized on 3-aminopropyltriethoxysilane functionalized silica gel. The immobilized materials were found to be efficient catalysts for epoxidation of styrene in the presence of tert-BuOOH in acetonitrile at 40 A degrees C. The catalysts can be reused several times without significant loss of performance.