Department of Chemistry, Loyola University Chicago, Chicago, IL 60626, USA.
Nanotechnology. 2011 Jul 8;22(27):275611. doi: 10.1088/0957-4484/22/27/275611. Epub 2011 May 25.
A novel apex-modified cyclotriveratrylene (CTV) derivative with an attached thiolane-containing lipoic acid linker was directly patterned onto gold substrates via dip-pen nanolithography (DPN). The addition of a dithiolane-containing linker to the apex of CTV provides a molecule that can adhere to a gold surface with its bowl-shaped cavity directed away from the surface, thereby providing a surface-bound CTV host that can be used for the directed assembly of guest molecules. Subsequent exposure of these CTV microarrays to C60 in toluene resulted in the directed assembly of predesigned, spatially controlled, high-density microarrays of C60. The molecular recognition capabilities of this CTV template toward C60 provides proof-of-concept that supramolecular CTV scaffolds can be directly patterned onto surfaces providing a foundation for the development of organic electronic and optoelectronic materials.
一种新型的 apex 修饰的环三聚萜烯（CTV）衍生物，带有连接硫醇的脂环酸链接子，通过蘸笔纳米光刻（DPN）直接在金基底上进行图案化。在 CTV 的 apex 添加含二硫醇的链接子，提供了一种可以与金表面附着的分子，其碗形腔朝向远离表面的方向，从而提供了一个表面结合的 CTV 主体，可用于客体分子的定向组装。随后，将这些 CTV 微阵列暴露于甲苯中的 C60 中，导致预先设计的、空间控制的、高密度的 C60 微阵列的定向组装。这种 CTV 模板对 C60 的分子识别能力证明了超分子 CTV 支架可以直接在表面上进行图案化，为有机电子和光电材料的发展提供了基础。
