Journal of Photoscience

한국광과학회 (Korean Society of Photoscience)
권호 표지

First Hyperpolarizabilities of Heteroaromatic Stilbene Derivatives

  • Cho, Bong-Rae (Molecular Opto-Electronic Laboratory, Department of Chemistry and Center for Electro- and Photo-Responsive Molecules, Korea University) ;
  • Lee, Sang-Hae (Molecular Opto-Electronic Laboratory, Department of Chemistry and Center for Electro- and Photo-Responsive Molecules, Korea University) ;
  • Yosep Min (Molecular Opto-Electronic Laboratory, Department of Chemistry and Center for Electro- and Photo-Responsive Molecules, Korea University) ;
  • Kang, Tae-Im (Molecular Opto-Electronic Laboratory, Department of Chemistry and Center for Electro- and Photo-Responsive Molecules, Korea University) ;
  • Jeon, Seung-Joon (Molecular Opto-Electronic Laboratory, Department of Chemistry and Center for Electro- and Photo-Responsive Molecules, Korea University)
  • 발행 : 2001.06.01
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초록

2-(p-Diethylaminostyryl)pyrrole (I) and 2-[5-diethylaminothienyl]vinyl]pyrrole (II) derivatives with systematic variation of the acceptors have been synthesized and their first hyperpolarizabilities were measured. The $\beta$ values increased systematically as the aromatic resonance energy decreased. Moreover, the value of $\beta$ for the former increased gradually as the acceptor strength increased. The opposite trend observed in the latter series of compounds has been attributed to the distorted structure caused by the steric hindrance between the N-methyl group and the acceptor moiety.

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