Lasting chemiluminescence of 3-indoleglyoxylyl chloride and its enhancement

Manabu Nakazono, Yumiko Sho, Kiyoshi Zaitsu

Research output: Contribution to journalArticle

8 Citations (Scopus)

Abstract

The chemiluminescence (CL) intensities of various indole derivatives substituted with a glyoxylyl group at the 3-position and a hydroxyl group at the 5-position of the indole ring were compared upon the addition of H 2 O 2 in alkaline media. The CL intensities of 3-indoleglyoxylyl chloride, 3-indoleglyoxylic acid, 5-hydroxyindole and 5-benzyloxyindole in CH 3 CN were 5.9-, 48-, 5.9- and 3.3-fold stronger than that of 3-methylindole. A lasting CL of 3-indoleglyoxylyl chloride was found. Under appropriate conditions, the CL emission reached a maximum within 10 min after the addition of H 2 O 2 in the presence of NaOH, and the intensity was retained for 25 min. One of the final products via the CL reaction of 3-indoleglyoxylyl chloride was indole-3-carboxylic acid. 3-Indoleglyoxylyl chloride emitted light by decompositions via both dioxetane and dioxetanedione. An enhancement effect of β-cyclodextrin and bovine serum albumin on the CL of 3-indoleglyoxylyl chloride was also found.

Original languageEnglish
Pages (from-to)123-127
Number of pages5
Journalanalytical sciences
Volume19
Issue number1
DOIs
Publication statusPublished - Jan 1 2003

All Science Journal Classification (ASJC) codes

  • Analytical Chemistry

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