Department of Chemistry, Columbia University , New York, New York 10027, United States.
J Am Chem Soc. 2014 Nov 12;136(45):15873-6. doi: 10.1021/ja508698w. Epub 2014 Oct 31.
Hierarchical solids created from the binary assembly of cobalt chalcogenide and iron oxide molecular clusters are reported. Six different molecular clusters based on the octahedral Co6E8 (E = Se or Te) and the expanded cubane Fe8O4 units are used as superatomic building blocks to construct these crystals. The formation of the solid is driven by the transfer of charge between complementary electron-donating and electron-accepting clusters in solution that crystallize as binary ionic compounds. The hierarchical structures are investigated by single-crystal X-ray diffraction, providing atomic and superatomic resolution. We report two different superstructures: a superatomic relative of the CsCl lattice type and an unusual packing arrangement based on the double-hexagonal close-packed lattice. Within these superstructures, we demonstrate various compositions and orientations of the clusters.
报道了由钴硫属化物和氧化铁分子簇的二元组装形成的分级固体。使用基于八面体 Co6E8（E = Se 或 Te）和扩展的立方烷 Fe8O4 单元的六个不同分子簇作为超原子构建块来构建这些晶体。固体的形成是由溶液中互补的供电子和受电子簇之间的电荷转移驱动的，这些簇结晶形成二元离子化合物。通过单晶 X 射线衍射对分级结构进行了研究，提供了原子和超原子分辨率。我们报告了两种不同的超结构：CsCl 晶格类型的超原子相对物和基于双六方密堆积晶格的不寻常堆积排列。在这些超结构中，我们展示了各种组成和簇的取向。
