Dr. Fenton Heirtzler

Ph.D. Organic Chemist in Central New Jersey

In colla

 

Frequency Doubling Dicopper(I) Metallocyclophanes

  • Non-linear optical (NLO) phenomena may occur in materials which, when excited by laser light impulses, undergo large changes in their molecular dipoles. Such materials will also have large ground-state dipoles.
  • Frequency doubling is a one such NLO phenomenon. This means that light is absorbed at a given wavelength, and emitted at half of that wavelength.  Download  a detailed  explanation of the physical phenomena  from here.
  • Such materials are used as waveguides, switches and emitters in high-speed optical-electrical data systems.
  • Metallocyclophanes are flat, dimeric structures formed by the self-assembly of oligopyridine quinoxaline-type ligands with kinetically labile metal ions, such as copper(I), silver(I) or cobalt(II) - see Equation 1.
  • Are used as waveguides, switches and emitters in high-speed optical-electrical data systems.
  • According to computations performed by Professor L. Burke of this Department, attaching either electron-donating or –withdrawing groups to the metallocyclophanes will produce a new sort of potent frequency doubling materials.
  • The object of this research is to synthesize important candidate molecules and to verify the prediction of frequency doubling through work with yet other collaborators.
  • The dicopper(I) metallocyclophanes of compounds 4, 5 and 6 are three such candidate molecules, and which we have either recently prepared or are now preparing.

NLO candidate ligands