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Keywords:

  • chromophores;
  • ion exchange;
  • mesoporous materials;
  • metal–organic frameworks;
  • nonlinear optics
Thumbnail image of graphical abstract

Frequency doubling: A strategy for incorporating dipolar organic chromophores into the one-dimensional channels of an anionic metal–organic framework (MOF) has been developed to generate highly active nonlinear optical materials (see picture). The resulting MOF material shows a second-harmonic generation intensity of 18.3 versus α quartz.