【摘要】 分别以不同的异羟肟酸为配体,合成了3个氧钒(Ⅳ)配合物,运用元素分析、红外光谱、核磁共振谱(1HNNR,13CNMR,51VNMR)、电子顺磁共振和电子吸收光谱等测试手段对配合物进行了表征.分别在不同的羟基醇中以氧钒(Ⅳ)配合物BHAOV为基础,合成了2个含烷氧基的五价氧钒(Ⅴ)化合物.在吡啶中合成了含吡啶的六配位氧钒(Ⅳ)配合物BHAOV(PY),V占据第6位置S原子,可使其不被氧原子进攻而氧化,要使V内层发生氧化,在四价钒上至少有一个空的配位位点是完全必要的.而且还研究了BHAOV在乙腈中的配位反应动力学.更多还原

【Abstract】 Three vanadyl（Ⅳ）compounds containing different aromatic monoylhydroxamic acid have been synthesized and characterized by elemental analyses,NMR(¹H NNR,¹³ C NMR,⁵¹V NMR),IR,EPR and UV-vis spectroscopies.In alcohols,a variety of V（Ⅴ） analogs BHAOV（OR）（R=-CH₃,-C₂H₅）are formed by aerial oxidation.A six-coordinate V（Ⅳ）pydine adduct BHAOV（PY）can be formed and this undergoes oxidation to V（Ⅴ）complexes much more slowly,demonstrating that a vacant coordinate site is required for the coordination of O₂ to VO（BHA）₂ before inner-sphere oxidation can take place.The coordination kinetics of BHAOV in CH₃CN is studied with UV-vis spectroscopy.更多还原