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本文介绍测定四核稀土过氧根络合物Ln_4O_4Cl_8(THF)_m(H_2O)_n(Ln=Pr、Nd,m+n=10)的紫外可见吸收光谱,归属处理光谱吸收峰。探讨了络合物在不同溶剂中的可能构型。初步结果表明,在非水溶剂中,四核稀土过氧根络合物能保持其稳定的四核核心构型Ln_4O_4Cl_4,随着体系中水含量的增加,四核络合物逐渐离解成单核络合物。文中还分析了促使四核络合物的离解因素。
In this paper, the UV-Vis absorption spectra of the tetranuclear rare earth peroxo complex Ln_4O_4Cl_8 (THF) _m (H_2O) _n (Ln = Pr, Nd, m + n = 10) The possible conformations of the complexes in different solvents were discussed. The preliminary results show that the tetranuclear rare earth peroxo complex can maintain its stable tetranuclear core configuration Ln_4O_4Cl_4 in non-aqueous solvents. As the water content in the system increases, the tetranuclear complex gradually dissociates into mononuclear Complex. The article also analyzes the factors that promote tetranuclear complex dissociation.