ORGN 442 |
| The development of luminescent devices is an active area of research. In this regard, pH measurement via luminescent sensors is important for areas ranging from biology to acid rain pollution of streams.The ligand MNpvpt as depicted has a strong electron-donating Me2N-group at one end and an electron accepting terpyridine at the other.This solvatochromic chromophore was incorporated into thin film polymer matrices of polystyrene (PS) and polymethylmethacrylate (PMMA). These films show interesting effects of vapors of acid and base on the emission of the ligand. To understand this we looked in detail at the acid-base chemistry of MNpvpt and its analogue pvpt in solution.These experiments yielded the ground and excited state pka's of these molecules which helped us to understand their behavior in films. We have looked at the surface morphology of these films using profilometry and AFM (Atomic Force Microscopy).The poster will discuss all these investigations in detail
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New Reactions and Methodology, Total Synthesis, Materials, Devices and Switches, Lipids, Nucleotides and Mimetics
8:00 PM-10:00 PM, Tuesday, March 27, 2007 Hyatt Regency Chicago -- Riverside Center, Poster
Division of Organic Chemistry |
