Platonic Hexahedron Composed of Six Organic Faces with an Inscribed Au Cluster
Platonic Hexahedron Composed of Six Organic Faces with an Inscribed Au Cluster
复制标题
DOI：
10.1021/ja209634g
复制
发表时间：
2012-01-18
影响因子：
15
通讯作者：
Teranish, Toshiharu
中科院分区：
文献类型：
--
作者：
Sakamoto, Masanori;Tanaka, Daisuke;Teranish, Toshiharu
纳米材料的结构决定了它们的各自特性以及它们可以形成的上部结构。已提出将各向异性形状和/或相互作用位点引入各向同性纳米粒子以扩展功能和可能的超结构图案。由于对称各向异性，具有正多边形面的柏拉图固体是最有前途的纳米级结构之一。将柏拉图固体各向异性引入各向同性纳米材料将扩大可能的超结构图案的功能和范围。在这里，我们展示了一种通过方形卟啉在具有足够尺寸的内接金球上的面配位来获得纳米柏拉图固体的新策略。多齿卟啉衍生物的面配位，四个乙酰硫基面向同一方向，在 Au 簇上将 Au 簇包围在具有六个卟啉面的柏拉图六面体中。透射电子显微镜、质谱、元素分析和扫描隧道显微镜被用来证实纳米柏拉图六面体的形成。
The structures of nanomaterials determine their individual properties and the suprastructures they can form. Introducing anisotropic shapes and/or interaction sites to isotropic nanoparticles has been proposed to extend the functionality and possible suprastructure motifs. Because of symmetric anisotropy, Platonic solids with regular polygon faces are one of the most promising nanoscale structures. Introduction of Platonic solid anisotropy to isotropic nanomaterials would expand the functionality and range of possible suprastructure motifs. Here, we demonstrate a novel strategy to obtain nano-Platonic solids through the face coordination of square porphyrins on an inscribed Au sphere with adequate size. The face coordination of the multidentate porphyrin derivatives, with four acetylthio groups facing the same direction, on the Au cluster encased the Au cluster in a Platonic hexahedron with six porphyrin faces. Transmission electron microscopy, mass spectrometry, elemental analysis, and scanning tunnelling microscopy were used to confirm the formation of the nano-Platonic hexahedron.