Single-Acetylene Linked Porphyrin Nanorings

نویسندگان

  • Michel Rickhaus
  • Andreas Vargas Jentzsch
  • Lara Tejerina
  • Isabell Grübner
  • Michael Jirasek
  • Timothy D W Claridge
  • Harry L Anderson
چکیده

The synthesis of ethyne-linked porphyrin nanorings has been achieved by template-directed Sonogashira coupling. The cyclic hexamer and octamer are predicted by density functional theory to adopt low symmetry conformations, due to dihedral twists between neighboring porphyrin units, but their symmetries are effectively D6h and D8h, respectively, in solution by 1H NMR. The fluorescence spectra indicate that the singlet excited states of these nanorings are highly delocalized.

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عنوان ژورنال:

دوره 139  شماره 

صفحات  -

تاریخ انتشار 2017