Intricate Hydrogen-Bonded Networks: Binary and Ternary Combinations of Uracil, PTCDI, and Melamine
Intricate Hydrogen-Bonded Networks: Binary and Ternary Combinations of Uracil, PTCDI, and Melamine
复制标题
DOI：
10.1021/jp9113249
复制
发表时间：
2010-04-08
影响因子：
3.7
通讯作者：
Castell, Martin R.
中科院分区：
文献类型：
--
作者：
Gardener, Jules A.;Shvarova, Olga Y.;Castell, Martin R.
我们报告了尿嘧啶，PTCDI和三聚氰胺的组合形成的两个和三个组件的多孔超分子网络。结构。在超高真空（UHV）中在Au（111）上形成的并通过扫描隧道显微镜（STM）研究的纳米线通过氢键稳定。我们发现，可以形成两个双分子网络，包括尿嘧啶和PTCDI，其中一个包含两个孔的几何形状，是由28个分子每单元电池。此外，我们观察到两种不同的有序结构的三聚氰胺和尿嘧啶的混合物。通过结合所有这三个物种，我们证明了一个单一的三元结构，每个单元格包含33个分子的形成。我们的研究结果证明了氢键产生高度复杂结构的能力，并开辟了从核酸碱基和其他小有机分子的组合形成广泛的新结构的可能性。
We report the formation of two- and three-component porous supramolecular networks from combinations of uracil, PTCDI, and melamine. The structures. which are formed on Au(111) in ultra-high vacuum (UHV) and studied by scanning tunneling microscopy (STM), are stabilized by hydrogen bonds. We show that two bimolecular networks comprising uracil and PTCDI can be formed, one of which contains two pore geometries and is composed of 28 molecules per unit cell. In addition, we observe two different ordered structures from mixtures of melamine and uracil. By combining all three of these species, we demonstrate the formation of a single ternary structure that contains 33 molecules per unit cell. Our results demonstrate the capacity of hydrogen bonding to produce highly complex structures, and open up the possibility of forming a wide range of new structures from combinations of nucleic bases and other small organic molecules.