Trinuclear metal clusters of Co, Mn, and Co/Mn hybrid of [Mn₃(O)(CH₃COO)₆-(py)₃ClO₄], [Co₃(O)(CH₃COO)₆-(py)₃ClO₄], [Co₂Mn(O)(CH₃COO)₆-(py)₃ClO₄], and [CoMn₂(O)(CH₃COO)₆-(py)₃ClO₄] were prepared and characterized by FT-IR and UV–Vis spectroscopic techniques. These homogeneous catalysts were investigated in the epoxidation of cyclohexene in the presence of H₂O₂/O₂ under mechanical stirring conditions. The effect of the oxidant, reaction temperature, kind of promoter, and solvent system were investigated on conversion and epoxide selectivity. In these systems, NaBr was selected as a promoter of oxidation based on standard potential (X = Cl⁻, Br⁻) toward Co³⁺, and Mn³⁺. These homogeneous catalytic systems can be the perfect choice for epoxidation of cyclohexene with good conversion and high epoxide selectivity over short periods.

钴，锰，和Co / Mn为混合的三核金属簇[锰₃（O）（CH ₃ COO）₆ - （PY）₃ CLO ₄ ]，[CO ₃（O）（CH ₃ COO）₆ - （PY ）₃ ClO ₄ ]，[Co ₂ Mn（O）（CH ₃ COO）_6-（py）₃ ClO ₄ ]和[CoMn ₂（O）（CH ₃ COO）_6-（py）₃ ClO ₄用FT-IR和UV-Vis光谱技术制备和表征。在机械搅拌条件下，在H ₂ O ₂ / O ₂存在下，在环己烯的环氧化反应中研究了这些均相催化剂。研究了氧化剂，反应温度，促进剂种类和溶剂体系对转化率和环氧化物选择性的影响。在这些系统中，将NaBr基于标准电位选择为氧化的启动子（X  =氯^{- ，}溴^- ）朝向钴³⁺和Mn ³⁺。这些均相的催化体系是环己烯环氧化的理想选择，具有短时间内良好的转化率和高的环氧选择性。