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Keywords:

  • boron;
  • donor–acceptor systems;
  • heterocycles;
  • luminescence;
  • nonlinear optics
Thumbnail image of graphical abstract

Through-bond coupling across a cyclodiborazane core results in large absorption cross sections in a new type of boron-containing two-photon-absorbing chromophore (see picture; B pink, N blue, C gray, H other than BH (white) omitted). This is a first step in the design of new dual-property chromophores for applications in biological science or medicine (e.g., two-photon imaging and boron neutron capture therapy).