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CANCELED: Organic Chemistry Seminar

Monday, October 21, 2019
4:00pm to 5:00pm
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Noyes 153 (J. Holmes Sturdivant Lecture Hall)
Exploring Stable Yet Unusual pi-Electron Materials by Making Use of Phosphorus and Sulfur
Aiko Fukazawa, Professor, iCeMS, Kyoto University,

This event has been canceled.

The molecular design of π-conjugated systems with unusual electronic structure and thus optical and/or electronic properties are of increasing importance for both progress of fundamental molecular science and development of next-generation optoelectronic materials. To this end, incorporation of main-group elements has been recognized as the one of the promising approaches toward the molecular design of π-conjugated systems with unusual electronic structure and thus optical and/or electronic properties. However, this approach often poses a challenge of compromise between unusual electronic structure and chemical stability of the resulting π-systems.

To tackle this issue, our group have so far focused on the characteristics of phosphorus and sulfur, and developed a number of novel p-electron systems with optical and/or electronic functions. These studies not only led to the generation of several outstanding functional materials including fluorescent probes, two-electron-absorbing dyes, and solution-processable semiconductors, but also provided several new concepts in the rational molecular design of functional p-electron systems. In this presentation, I will describe the overview of our work and some of recent studies on the sulfur-containing heterocycles towards 1) the renaissance of the chemistry of nonbenzenoid hydrocarbons, and 2) the unconventional approach for solubilizing and molecular alignment of π-conjugated systems.

For more information, please contact Rena Becerra Rasti by phone at 626-395-6151 or by email at rasti@caltech.edu.