Local spectroscopy of multi-spin molecules: valency distributions and magnetic properties (C14*)

我们研究了几乎是平面的化合物，其中一到三个氧化还原活性中心连接到一个中心，同样是氧化还原活性的三角形核心。混合价形式，其中只有部分氧化还原位被氧化为顺磁性位，将通过分子光谱在溶液中研究价离域或电子双稳的程度。然后将分子在溶液中的集合行为与沉积在表面上的单个分子的行为进行比较，并通过扫描探针显微镜和光谱学进行研究。另一个有趣的地方是未配对自旋的耦合模式和同一分子中几个顺磁性位置预先存在的状态的磁性。

We investigate almost planar compounds where one to three redoxactive centers are connected to a central, likewise redox-active triangular core. Mixedvalent forms, where only part of the redox sites are oxidized to paramagnetic sites, will be investigated with respect to the degree of valence delocalization or electronic bistability by molecular spectroscopy in solution. The behaviour of ensembles of molecules in solution will then be compared to that of individual molecules deposited on surfaces and studied by scanning probe microscopy and spectroscopy. A further point of interest is the coupling pattern of unpaired spins and the magnetic properties of states where several paramagnetic sites are pre-sent within the same molecule.