【摘要】 研究了13种轴向有机中性配体(咪唑、吡啶、吡唑、吡嗪、哌啶、4-甲基吡啶、3-甲基吡啶、2-甲基吡啶、2,6-二甲基吡啶、三苯基膦、噻吩、呋喃、吡咯)对Schiff碱双锰配合物在模拟酶催化PhIO单加氧化环己烷反应中催化性能的影响.结果表明,这些轴向有机配体均能提高Schiff碱金属配合物的催化活性;一般轴向配体碱性愈强,催化剂的催化活性愈高.更多还原

【Abstract】 The influences of 13 axial organo - ligands--imidazole, pyridine, pyiazole, pyrazine,piperidine, 2 - methylpyridine, 3 - methylpyridine, 4 - methylpyridine, 2,6- dimethylpyridine, pyrrole, furan, thiophene and Ph3P on the biomimetic catalytic character of a Schiff base dimanganese complex in the monooxygenation of cyclohexane with PhIO were studied. The results show that all of these axial organo -ligands can increase the catalytic activity of the dimanganese complex, and the influences of the ligands on the catalytic character of the dimanganese complex increase with the increase of the value of pKa of the ligands without steric effect.更多还原