(1-methyl-1H-benzo[d]imidazol-2-yl) methanol (Hmbm) reacts with Mn(ClO₄)₂·6H₂O to form heptanuclear disks [Mn₇(mbm)₁₂]·2(ClO₄) (1) under ambient conditions. The heptanuclear cluster was previously described as a double calix unit with the hydroxides in the middle. The seven Mn(II) ions are essentially coplanar as expected for all edge-sharing octahedra, which can be intituled as a segment of Mg(OH)₂ layer of brucite, so it is a symmetric disk. ESI–MS of crystals showed its stability in solution. Time-dependent mass spectrometry (MS) from solutions at different period of the assembly reveal a hierarchical sequence, [Mn^III(mbm)₂]⁺ → [Mn^II₂(mbm)₃]⁺ → [Mn^II₄(mbm)₆(ClO₄)]⁺ → [Mn^IIIMn^II₆(mbm)₁₂(ClO₄)₂]⁺.

（1-甲基-1 H-苯并[ d ]咪唑-2-基）甲醇（H mbm）与Mn（ClO ₄）₂ ·6H ₂ O反应形成庚核盘[Mn ₇（mbm）₁₂ ]·2（ ClO ₄）（1）在环境条件下。以前，七核簇被描述为一个双杯状单元，中间有氢氧化物。正如所有边缘共享八面体所预期的那样，七个Mn（II）离子基本上共面，可以将其作为Mg（OH）₂的片段设置层水镁石，所以它是一个对称磁盘。晶体的ESI–MS显示其在溶液中的稳定性。来自组装不同阶段的溶液的时间依赖性质谱（MS）显示了一个层次序列，[Mn ^III（mbm）₂ ] ⁺ →[Mn ^II ₂（mbm）₃ ] ⁺ →[Mn ^II ₄（mbm）₆（ClO ₄）] ⁺ →[Mn ^III Mn ^II ₆（mbm）₁₂（ClO ₄）₂ ]⁺。