A three-level luminescent response in a pyrene/ferrocene rotaxane

Org Lett. 2013 Jan 4;15(1):84-7. doi: 10.1021/ol303108q. Epub 2012 Dec 20.

Abstract

A solvent switchable rotaxane equipped with a pyrene stopper and with two ferrocenyl units on the macrocycle is reported, in which three different states, two nondegenerate and one degenerate, can be obtained in different solvents at room temperature. This is accompanied by high contrast changes in fluorescence intensity of the pyrene stopper by the presence of the ferrocenyl moieties on the macrocycle, which quench the emission of pyrene more efficiently with proximity.

Publication types

  • Research Support, Non-U.S. Gov't

MeSH terms

  • Ferrous Compounds / chemistry*
  • Luminescence
  • Magnetic Resonance Spectroscopy
  • Metallocenes
  • Pyrenes / chemistry*
  • Rotaxanes / chemical synthesis
  • Rotaxanes / chemistry*
  • Spectrometry, Fluorescence
  • Temperature

Substances

  • Ferrous Compounds
  • Metallocenes
  • Pyrenes
  • Rotaxanes
  • pyrene
  • ferrocene