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Solvent-Free Ball-Milling Subcomponent Synthesis of Metallosupramolecular Complexes

机译:金属超分子配合物的无溶剂球磨亚组分合成

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摘要

Subcomponent self-assembly from components A, B, C, D, and Fe2+ under solvent-free conditions by self-sorting leads to the construction of three structurally different metallosupramolecular iron(II) complexes. Under carefully selected ball-milling conditions, tetranuclear [Fe-4(AD(2))(6)](4-) 22-component cage 1, dinuclear [Fe-2(BD2)(3)](2-) 11-component helicate 2, and 5-component mononuclear [Fe(CD3)](2+) complex 3 were prepared simultaneously in a one-pot reaction from 38 components. Through subcomponent substitution reaction by adding subcomponent B, the [Fe-4(AD(2))(6)](4-) cage converts quantitatively to the [Fe-2(BD2)(3)](2-) helicate, which, in turn, upon addition of subcomponent C, transforms to [Fe(CD3)](2+), following the hierarchical preference based on the thermodynamic stability of the complexes.
机译:在无溶剂条件下通过自分选,由组分A,B,C,D和Fe2 +进行的子组分自组装导致构建了三种结构不同的金属超分子铁(II)配合物。在精心选择的球磨条件下,四核[Fe-4(AD(2))(6)](4-)22组分笼1,双核[Fe-2(BD2)(3)](2-)11一锅反应中,由38个组分同时制备5个组分的螺旋产物2和5个组分的单核[Fe(CD3)](2+)配合物3。通过添加亚组分B进行亚组分取代反应,[Fe-4(AD(2))(6)](4-)笼定量地转化为[Fe-2(BD2)(3)](2-)螺旋体,继而,在添加子成分C后,根据基于络合物的热力学稳定性的层次偏好,将其转换为[Fe(CD3)](2+)。

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