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Research on Chemical Intermediates

, Volume 26, Issue 7–8, pp 829–838 | Cite as

Laser induced photochromic mechanism of 3-phenyl-3-[1,2-dimethylindol-3-YL]-3H-naphtho[2,1-B]pyran

  • Gui -Lan Pan
  • Jing -Qiang Wei
  • Ping Fan
  • Ai -Ping Zhu
  • Yang -Fu Ming
  • M. -G. Fan
  • S. D. Yao
Article

Abstract

The photochromic process of 3-phenyl-3-[1,2-dimethylindol-3-yl]-3H-naphtho[2,1-b]pyran [I] has been examined with nanosecond laser flash photolysis techniques in cyclohexane and acetonitrile respectively. Both excited singlet state and triplet state are involved in the photocoloration process. The decay kinetics of photoproducts are also studied. The maximum absorption wavelength and lifetime of the transient species are solvent dependent.

Keywords

Pyran Title Compound Colored Form Decay Kinetic Excited Singlet State 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.

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Copyright information

© Springer 2000

Authors and Affiliations

  • Gui -Lan Pan
    • 1
  • Jing -Qiang Wei
    • 1
  • Ping Fan
    • 1
  • Ai -Ping Zhu
    • 1
  • Yang -Fu Ming
    • 1
  • M. -G. Fan
    • 1
  • S. D. Yao
    • 2
  1. 1.Institute of Photographic ChemistryThe Chinese Academy of SciencesBeijingChina
  2. 2.Laboratory of Radiation Chemistry, Shanghai Institute of Nuclear ResearchThe Chinese Academy of SciencesShanghaiChina

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