Institut für Physikalische und Theoretische Chemie, Universität Regensburg, 93053 Regensburg, Germany.
Fritz-Haber-Insitut der Max-Planck-Gesellschaft, Faradayweg 4-6, 14195 Berlin, Germany.
J Chem Phys. 2018 Apr 14;148(14):144301. doi: 10.1063/1.5022006.
We investigate the solvent shift of phthalocyanine (Pc) doped into superfluid helium droplets and probed by optical spectroscopy at the electronic origin. Our present work complements extant studies and provides results that in part contradict previous conclusions. In particular, the solvent shift does not increase monotonously with droplet radius all the way up to the bulk limit, but exhibits just the reverse dependence instead. Moreover, a substructure is resolved, whose characteristics depend on the droplet size. This behavior can hardly be reconciled with that of a freely rotating Pc-helium complex.
我们研究了酞菁（Pc）掺杂在超流氦液滴中并通过电子起源的光谱探测时的溶剂位移。我们目前的工作补充了现有研究，并提供了部分与先前结论相矛盾的结果。特别是，溶剂位移并不随着液滴半径一直单调增加到体相极限，而是相反地依赖于液滴的尺寸。此外，还解析出一个亚结构，其特征取决于液滴的大小。这种行为与自由旋转的 Pc-氦复合物几乎无法协调。
