School of Physics and Astronomy, University of Nottingham, Nottingham, UK.
Nanotechnology. 2011 Feb 18;22(7):075704. doi: 10.1088/0957-4484/22/7/075704. Epub 2011 Jan 14.
Single molecule magnets based on the dodecamanganese (III, IV) cluster with two different types of ligand (acetate and benzoate) have been studied on the Au(111) surface. Due to the non-volatile and fragile nature of the molecules, we have used ultra-high vacuum electrospray deposition to produce a series of surface coverages from a fraction of a monolayer to multilayer films in both cases. Synchrotron radiation based electron spectroscopy has been used to study the adsorption of the molecules on the Au(111) surface and the effect that this has on the oxidation states of the manganese atoms in the core. In both cases, reduction of the core is observed due to the interaction with the surface, to essentially the same extent despite substantial differences in the size and nature of the ligand shell.
基于具有两种不同配体（乙酸盐和苯甲酸盐）的十二锰（III，IV）簇的单分子磁体已在 Au(111) 表面上进行了研究。由于分子的非挥发性和脆弱性，我们使用超高真空电喷雾沉积在两种情况下都从亚单层到多层膜的一系列表面覆盖率来产生。基于同步辐射的电子能谱已用于研究分子在 Au(111) 表面上的吸附以及这种吸附对核心锰原子氧化态的影响。在这两种情况下，由于与表面的相互作用，核心都被还原了，尽管配体壳的大小和性质有很大的差异，但还原程度基本相同。
