One-Pot Synthesis of a New Magnetically Coupled Heterometallic Cu₂Mn₂ [2 × 2] Molecular Grid

The heterometallic [2 × 2] grid-type complex [Cu2Mn2(pop)4(OAc)4]·7H2O (1) has been selectively synthesized in a targeted one-pot reaction. Single-crystal X-ray analysis shows the expected structure with identical metal ions located at diagonal vertices of the grid. Magnetochemical studies reveal that 1 has a ferrimagnetic spin ground state with some admixture of low-lying excited states.本研究通过定向一锅法反应，选择性合成了异金属[2×2]网格型配合物[Cu₂Mn₂(pop)₄(OAc)₄]·7H₂O（化合物1）。单晶X射线衍射分析表明，该配合物具有预期的晶体结构，对角顶点处的金属离子种类一致。磁化学研究显示，化合物1具备亚铁磁自旋基态，并伴随少量低能激发态的混杂。