Peroxo- and oxovanadium(IV) complexes with tridentate N-heterocycle ligands: synthesis, structure, and catalytic performance
作者： Xi Tong Ma , Na Xing , Zhi Dan Yan , Xiao Xi Zhang , Qiong Wu
DOI: 10.1039/C4NJ01525H
关键词:
摘要: Three peroxo- and oxovanadium(IV) complexes: [VO(O2)(bpz*eaT)·VO(C4H4O6)]·H2O (1), [VOSO4(bpz*eaT)]·C6H8O7 (2) (bpz*eaT = 2,4-bis(3,5-dimethyl-1H-pyrazol-1-yl)-6-diethylamino-1,3,5-triazine) [VO(C12H8N2)(C9H7NO3)]·CH3OH·0.5H2O (3) were synthesized characterized by elemental analysis, IR spectra, UV-Vis spectroscopy single-crystal X-ray diffraction. In addition, the catalytic performances of complexes 1–3 their starting materials (VO(acac)2 VOSO4) studied reaction cyclohexane (Cy) oxidation. It is found that complex 1 exhibited highest activity (TON(cyclohexanol) 220, TON(cyclohexanone) 346, Conv. 97.9%) with H2O2 as an oxidant HNO3 additive at 24 h, 40 °C, indicating it a potential candidate catalyst to oxidize Cy cyclohexanol (CyOH) cyclohexanone (CyO) under mild conditions.
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