Compounds featuring one-dimensional regular arrangements of stacked metal complexes and alternating [cation–anion]_∞ sequences have raised considerable interest owing to their peculiar electronic and optical properties as well as guest inclusion capabilities. While traditional ways to realize these structural motifs rely on crystalline compounds, exclusively existing in the solid state, recent progress in the area of metal-mediated supramolecular self-assembly allows for the rational synthesis of structurally well-defined short stretches of stacked metal complexes and cation–anion arrangements. Therefore, metal cations, counteranions, and suitably designed organic bridges are allowed to self-assemble in solution. While the bridges can be designed as cross-linkers to yield extended two- or three-dimensional networks such as layered materials, metal–organic frameworks (MOFs), or porous coordination polymers (PCPs), they can also be tailored to lead to discrete nanoscopic objects. Supramolecular helicates, grids, and knots belong to this class of compounds, and a particularly interesting subfamily are coordination cages and capsules, which possess nanosized cavities with the ability to encapsulate guest molecules.

中文翻译：

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自组装Pd ₂ L ₄和Pd ₄ L ₈配位笼中的阳离子-阴离子排列方式

具有堆叠金属络合物的一维规则排列和交替的[阳离子-阴离子] _∞的化合物由于其独特的电子和光学特性以及客体包含能力，该序列引起了极大的兴趣。尽管实现这些结构基序的传统方法依赖于仅以固态形式存在的结晶化合物，但金属介导的超分子自组装领域的最新进展允许合理合成结构合理的短片段堆叠金属配合物。阳离子-阴离子安排。因此，允许金属阳离子，抗衡阴离子和适当设计的有机桥在溶液中自组装。虽然可以将桥设计为交联剂以产生扩展的二维或三维网络，例如层状材料，金属有机骨架（MOF）或多孔配位聚合物（PCP），它们也可以被定制以导致离散的纳米物体。超分子的螺旋结构，网格和结属于这类化合物，特别有趣的亚科是配位笼和胶囊，它们具有纳米级的空腔，能够包封客体分子。