Synthesis and Absorption Spectral Properties of New Merocyanine Dyes Derived from 1,1-Diaryl-2-propyn-1-ols.

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概要

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• A series of push-pull butadiene dyes (new merocyanine dyes) containing 3,6-bis(dimethylamino)fluorenylidene, thioxanthenylidene, or 10-(9-xanthenylidene)-9(10<I>H</I>)-anthrylidene chromophore was easily synthesized from the corresponding 1,1-diaryl-2-propyn-1-ol systems. Their absorption spectral properties were examined and the relationship between their light absorption properties and chemical structures is discussed in comparison with the results from PPP-SCF-CI-MO calculations. The influence of the solvent polarity on the 1⁄λ<SUB>max</SUB>(=wave number)-values of the dyes was investigated, and the solvatochromic nature compared with the known solvent polarity parameters such as <I>E</I><SUB>T</SUB>30, <I>Z</I>, χ<SUB>R</SUB>, π<SUB>azo</SUB><SUP>*</SUP> on 2-[2-[3,6-bis(dimethylamino)fluorenylidene]ethylidene]-1,3-indandione.

著者

• AKIYAMA Shuzo

  School of Pharmaceutical Sciences, Nagasaki University

• Nakazumi Hiroyuki

  Department Of Advanced Materials Science Graduate School Of Engineering Osaka Prefecture University

• Nakashima Kenichiro

  School Of Pharmaceutical Science Nagasaki University

• Akiyama Shuzo

  School Of Pharmaceutical Sciences Nagasaki University

• Yahiro Tomio

  School of Pharmaceutical Sciences, Nagasaki University

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