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Synthesis and Optical Properties of Near-Infrared (NIR) Absorbing Azo Dyes

Author

Listed:
  • Sharad Patil

    (Department of Chemistry, Uka Tarsadia University, India
    Department of Dyestuff Technology, Institute of Chemical Technology, India)

  • Amol Choudhary

    (AT Inks, R&D Centre, India
    Department of Dyestuff Technology, Institute of Chemical Technology, India)

  • N Sekar

    (Department of Dyestuff Technology, Institute of Chemical Technology, India)

  • Pratik Pipliya

    (Department of Chemistry, Uka Tarsadia University, India)

  • Pooja Rathod

    (Department of Chemistry, Uka Tarsadia University, India)

Abstract

In this work, we have developed an efficient and simple protocol for the synthesis of novel A-π-D-π-A NIR azo dyes. The near infrared absorbing azo dyes were synthesized by using 2-hydroxy-1, 4 naphthoquinone (Lawsone) and different substituted aromatic primary amines. Furthermore, author developed push-pull chromophores of A-π-D-π-A type containing an electron-withdrawing azo core, phenazine moieties, and a hydroxyl group as electron donor. The benzo [a] quinoxalino [2,3-i] phenazin-5-ol moiety was introduced to make the system planer as well as to increase the π-conjugation. The optical properties of these dyes were studied in N, N-dimethylformamide (DMF).

Suggested Citation

  • Sharad Patil & Amol Choudhary & N Sekar & Pratik Pipliya & Pooja Rathod, 2019. "Synthesis and Optical Properties of Near-Infrared (NIR) Absorbing Azo Dyes," Current Trends in Fashion Technology & Textile Engineering, Juniper Publishers Inc., vol. 4(5), pages 119-126, March.
    • Handle: RePEc:adp:ctftte:v:4:y:2019:i:5:p:119-126
    DOI: 10.19080/CTFTTE.2019.04.555649
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    References listed on IDEAS

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    1. Rajat Pratap Singh & Pradeep Kumar Singh & Ram Lakhan Singh, 2017. "Role of Azoreductases in Bacterial Decolorization of Azo Dyes," Current Trends in Biomedical Engineering & Biosciences, Juniper Publishers Inc., vol. 9(3), pages 50-52, September.
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