The reaction of [Cp₂Mo₂(CO)₄(μ,η^2:2‐E₂)] (A: E=P, B: E=As, Cp=C₅H₅) with the WCA‐containing Cu^I salts ([Cu(CH₃CN)₄][Al{OC(CF₃)₃}₄] (CuTEF, C), [Cu(CH₃CN)₄][BF₄] (D) and [Cu(CH₃CN)_3.5][FAl{OC₆F₁₀(C₆F₅)}₃] (CuFAl, E)) affords seven unprecedented coordination compounds. Depending on the E₂ ligand complex, the counter anion of the copper salt and the stoichiometry, four dinuclear copper dimers and three trinuclear copper compounds are accessible. The latter complexes reveal first linear Cu₃ arrays linked by E₂ units (E=P, As) coordinated in an η^2:1:1 coordination mode. All compounds were characterized by X‐ray crystallography, NMR and IR spectroscopy, mass spectrometry and elemental analysis. To define the nature of the Cu⋅⋅⋅Cu⋅⋅⋅Cu interactions, DFT calculations were performed.

中文翻译：

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Cu(I) 单元通过四面体 Mo2E2 配合物 (E = P, As) 连接。

_{[Cp 2} Mo ₂ (CO) ₄ (μ,η ^2:2 ‐E ₂ )] ( A : E=P, B : E=As, Cp=C ₅ H ₅ ) 与含 WCA 的 Cu的反应^I盐 ([Cu(CH ₃ CN) ₄ ][Al{OC(CF ₃ ) ₃ } ₄ ] (CuTEF, C )、[Cu(CH ₃ CN) ₄ ][BF ₄ ] ( D ) 和 [Cu( CH ₃ CN) _3.5 ][FAl{OC ₆ F ₁₀ (C ₆ F ₅ )} ₃ ] (CuFAl, E )) 提供了七种前所未有的配位化合物。根据E ₂配体络合物、铜盐的抗衡阴离子和化学计量，可以获得四种双核铜二聚体和三种三核铜化合物。后者的配合物揭示了由 E ₂单元（E=P，As）以 η ^{2:1:1配位模式连接的第一个线性 Cu} ₃阵列。所有化合物均通过 X 射线晶体学、核磁共振和红外光谱、质谱和元素分析进行​​表征。为了定义 Cu⋅⋅⋅Cu⋅⋅⋅Cu 相互作用的性质，进行了 DFT 计算。