Centro de Investigación en Nanociencia y Nanotecnología (ICN-CSIC), Esfera UAB, Edificio CM7, Campus UAB, 08193, Cerdanyola del Vallès, Barcelona, Spain.
Chemistry. 2012 Mar 5;18(10):3056-63. doi: 10.1002/chem.201101940. Epub 2012 Jan 30.
The large tendency of catechol rings to adsorb on surfaces has been studied by STM experiments with molecular resolution combined with molecular-dynamics simulations. The strong adhesion is due to interactions with the surface and solvent effects. Moreover, the thermodynamic control over the differential adsorption of 1 and the nonanoic solvent molecules has been used to induce a new temperature-induced switchable interconversion. Two different phases that differ in their crystal packing and the presence of solvent molecules coexist upon an increase or decrease in the temperature. These results open new insight into the behavior of catechol molecules on surfaces and 2D molecular suprastructures.
通过 STM 实验与分子动力学模拟相结合，研究了儿茶酚环在表面上的强烈吸附趋势。这种强烈的附着力归因于与表面和溶剂的相互作用。此外，通过热力学控制对 1 和壬烷溶剂分子的差分吸附，可以诱导新的温度诱导可切换互变。两种不同的相在其晶体堆积和溶剂分子的存在方面存在差异，当温度升高或降低时共存。这些结果为儿茶酚分子在表面和 2D 分子超结构上的行为提供了新的见解。
