ORGN 99 |
| We are exploring co-facial π-π interactions to modulate the electronic and photophysical properties of π-conjugated materials. We have synthesized a series of rigid molecular scaffolds with co-facial π-π interactions and incorporated them into poly(p-phenylene butadiynylene)s (e.g., 1 and 2). The monomers are prepared using highly selective and high yielding Diels–Alder cycloadditions between anthracene and substituted anhydrides. Monomer x-ray crystal structures show close arene-arene distances (3.0-3.8 Å). High molecular weight poly(p-phenylene butadiynylene)s were prepared via Pd/Cu(I)/benzoquinone oxidative coupling of the diacetylene monomers. The electronic and photophysical properties of these unique conjugated polymers will also be discussed.
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Materials, Devices, and Switches
1:00 PM-5:00 PM, Sunday, 10 September 2006 Moscone Center -- Room 132, Oral
Division of Organic Chemistry |
