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Synthesis and Properties of a Chiroptically Active Oligomer from 3,4-Ethylenedioxythiophene and (–)-Myrtenal

Institute of Materials Science, Graduate School of Pure and Applied Sciences, University of Tsukuba, Tsukuba, Ibaraki 305-8573, Japan
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Materials 2011, 4(6), 1013-1022; https://doi.org/10.3390/ma4061013
Received: 23 March 2011 / Revised: 29 April 2011 / Accepted: 27 May 2011 / Published: 30 May 2011
Oxidative polycondensation of 3,4-ethylenedioxythiophene and (–)-myrtenal was carried out with POCl3. A p-conjugated system thus constructed consists of aromatic and quinoidal alternating structure linked via methine groups. We examined iodine doping effect for the resultant material with electron spin resonance spectroscopy. Circular dichroism spectra in chloroform solution showed blue-shift with increase of iodine concentration. This result indicates that the doping process can tune chiroptical activity of the chiral π-conjugated system. View Full-Text
Keywords: poly(3,4-ethylenedioxythiophene); chiroptically active materials; π-conjugated material poly(3,4-ethylenedioxythiophene); chiroptically active materials; π-conjugated material
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Kawashima, H.; Goto, H. Synthesis and Properties of a Chiroptically Active Oligomer from 3,4-Ethylenedioxythiophene and (–)-Myrtenal. Materials 2011, 4, 1013-1022.

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