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过渡金属络合物的电子吸收光谱是其基态分子的电子跃迁到激发态的重要表征方法,已经成为观测光化学过程中活性中间物及金属离子的氧化态变化的有效手段.中心金属离子与配位体之间的电荷转移(CT),是过渡金属络合物光驱动氧化还原反应的原因. VCl_3在乙醇中形成[VCl_2(C_2H_5OH)_4]~+Cl~-络合物(以下简写为VCl_3(C_2H_5OH)_4),在近紫外光辐照下,它发生氧化还原反应,C_2H_5OH氧化成CH_3CHO,而V~(3+)原为V~(2+),
The electron absorption spectrum of transition metal complexes is an important method for characterizing the electron transition from the ground state to the excited state and has become an effective method for observing the oxidation state changes of the active intermediates and metal ions in the photochemical process. (CT) is the reason for the photo-driven redox reaction of transition metal complex.VCl_3 forms [VCl_2 (C_2H_5OH) _4] ~ + Cl ~ -complexes in ethanol (hereinafter abbreviated as VCl_3 C_2H_5OH) _4), under the irradiation of near ultraviolet light, it undergoes redox reaction, C_2H_5OH is oxidized to CH_3CHO, while V_ (3+) is V_ (2+)