Synthesis and Absorption Spectral Shifts of Novel Squarylium Dyes.

  • Koh Kwang-Nak
    Sensor Technology Research Center, Kyungpook National University
  • Hwang Seok-Hwan
    Department of Dyeing and Finishing, Kyungpook National University
  • Han Sun-Kyung
    Department of Dyeing and Finishing, Kyungpook National University
  • Kang Shin-Won
    Sensor Technology Research Center, Kyungpook National University
  • Kim Sung-Hoon
    Department of Dyeing and Finishing, Kyungpook National University

書誌事項

タイトル別名
  • Synthesis and Absorption Spectral Shift

この論文をさがす

抄録

Two kinds of new squarylium dyes have been prepared. Aminosquarylium dyes (ASQ) (6) have been prepared by condensation of aminosquarates (3) and 1-ethyl-2, 3, 3-trimethylindolenium iodide (5). New aminosquarylium dye 6a absorbed at a longer wavelength (18nm) than the corresponding squarylium dye (SQ) 7c.<br>A new class of dithiosquarylium dyes (DTSQ 8) has also been synthesized by the reaction of squarylium dye (SQ) with Lawesson's reagent or P4S10. The λmax of DTSQ dyes undergoes a bathochromic shift of about 25nm compared with corresponding SQ dyes.<br>The visible absorption spectra of ASQ and DTSQ dyes are well accounted for by PPP-MO calculations.

収録刊行物

  • 繊維学会誌

    繊維学会誌 54 (2), 72-76, 1998

    社団法人 繊維学会

参考文献 (7)*注記

もっと見る

キーワード

詳細情報

問題の指摘

ページトップへ