Jump to main content
Jump to site search

Issue 30, 2015
Previous Article Next Article

Mononuclear manganese(III) complexes of bidentate NO donor Schiff base ligands: synthesis, structural characterization, magnetic and catecholase studies

Author affiliations

Abstract

We have synthesized four mononuclear manganese(III) complexes (1–4) of four closely related bidentate NO donor Schiff-base ligands, out of which three (2–4) were structurally characterized. Crystal structure determination reveals that all these complexes are in octahedral geometries. Magnetic studies have been carried out on complexes 2, 3 and 4 in the temperature range 2–300 K under a magnetic field of 0.1 T which yielded negative ZFS parameters of −2.96, –3.51 and −3.72 cm−1 respectively. The catecholase activities of complexes 1–4 have been investigated following the oxidation of 3,5-di-tert-butylcatechol (3,5-DTBC) to 3,5-di-tert-butylbenzoquinone (3,5-DTBQ) with molecular oxygen in DCM at 25 °C, which were found to follow the Michalis–Menton type relation giving the highest TON (Kcat) for the so far reported Mn(III) complexes.

Graphical abstract: Mononuclear manganese(iii) complexes of bidentate NO donor Schiff base ligands: synthesis, structural characterization, magnetic and catecholase studies

Back to tab navigation
Please wait while Download options loads

Supplementary files

Publication details

The article was received on 11 Jan 2015, accepted on 23 Feb 2015 and first published on 23 Feb 2015


Article type: Paper
DOI: 10.1039/C5RA00239G
Citation: RSC Adv., 2015,5, 23855-23864
  •   Request permissions

    Mononuclear manganese(III) complexes of bidentate NO donor Schiff base ligands: synthesis, structural characterization, magnetic and catecholase studies

    A. Dutta, S. Biswas, M. Dolai, B. K. Shaw, A. Mondal, S. K. Saha and M. Ali, RSC Adv., 2015, 5, 23855
    DOI: 10.1039/C5RA00239G

Search articles by author