Roy Barman, TannisthaSutradhar, ManasAlegria, ElisabeteSilva, M. Fátima C. Guedes DaPombeiro, Armando2020-11-062020-11-062020-10-13BARMAN, Tannistha Roy; [et al] – Fe(III) complexes in cyclohexane oxidation: comparison of catalytic activities under different energy stimuli. Catalysts. ISSN 2073-4344. Vol. 10, N.º 10 (2020), pp. 1-162073-4344http://hdl.handle.net/10400.21/12355In this study, the mononuclear Fe(III) complex [Fe(HL)(NO3)(H2O)2]NO3 (1) derived from N0 -acetylpyrazine-2-carbohydrazide (H2L) was synthesized and characterized by several physicochemical methods, e.g., elemental analysis, infrared (IR) spectroscopy, electrospray ionization mass spectrometry (ESI-MS), and single crystal X-ray diffraction analysis. The catalytic performances of 1 and the previously reported complexes [Fe(HL)Cl2] (2) and [Fe(HL)Cl(µ-OMe)]2 (3) towards the peroxidative oxidation of cyclohexane under three different energy stimuli (microwave irradiation, ultrasound, and conventional heating) were compared. 1-3 displayed homogeneous catalytic activity, leading to the formation of cyclohexanol and cyclohexanone as final products, with a high selectivity for the alcohol (up to 95%). Complex 1 exhibited the highest catalytic activity, with a total product yield of 38% (cyclohexanol + cyclohexanone) under optimized microwave-assisted conditions.engFe(III) complexN,O donorX-ray analysisAlkane oxidationMicrowave irradiationjournal article10.3390/catal10101175