Donor substituted verdazyls as the basis for molecular switches

ORGN 592

David J R Brook, dbrook@science.sjsu.edu, Dallas Chambers, Victoria Chemistruck, and Ben Haller. Department of Chemistry, San Jose State University, One Washington Square, San Jose, CA 95192-0101
The subsitituted verdazyl 1,5-diisopropyl-3-(4'-dimethylaminophenyl)-6-oxoverdazyl crystallizes in purple and green forms (Figure 1) that surprisingly seem to be isostructural. Similarly the anion of 1,5-diisopropyl-3-(4'-hydroxyphenyl)-6-oxoverdazyl also shows large changes in the UV-visible spectra depending upon solvent. We report the full characterization of these unusual molecules and our attempts to induce switching between purple and green forms. Possible explanations of their unusual electronic structures will also be presented.

 

Materials, Devices and Switches, Metal-Mediated Reactions, Asymmetric Reactions, Total Synthesis, Biologically-Related Molecules and Processes
7:00 PM-9:00 PM, Wednesday, April 9, 2008 Morial Convention Center -- La Louisiane, Blrm. C, Poster

Division of Organic Chemistry

The 235th ACS National Meeting, New Orleans, LA, April 6-10, 2008