NONRADIATIVE PATHWAYS OF 7-AZAINDOLE IN WATER

被引：42
|
作者：
GAI, F [1 ]
CHEN, Y [1 ]
PETRICH, JW [1 ]
机构：
[1] IOWA STATE UNIV SCI & TECHNOL,DEPT CHEM,AMES,IA 50011
来源：
JOURNAL OF THE AMERICAN CHEMICAL SOCIETY | 1992年 / 114卷 / 22期
关键词：
D O I：
10.1021/ja00048a001
中图分类号：
O6 [化学];
学科分类号：
0703 ;
摘要：
The 7-azaindole chromophore in water is studied by means of picosecond absorption and fluorescence spectroscopy in order to determine its nonradiative decay pathways. It is concluded that a small population of 7-azaindole molecules (approximately 20%) undergo excited-state tautomerization in about 70 ps. Intersystem crossing and photoionization are also identified as nonradiative decay channels. Photoionization occurs largely from an electronic state lying slightly in energy above the fluorescent state. This new understanding of the photophysics of the 7-azaindole chromophore in water will be essential in interpreting its behavior when it is used as an optical probe of protein structure and dynamics.
引用
收藏
页码：8343 / 8345
页数：3
相关论文
共 50 条
  • [21] DYNAMICS OF PROTON-TRANSFER IN 7-AZAINDOLE
    SHARE, P
    PEREIRA, M
    SARISKY, M
    REPINEC, S
    HOCHSTRASSER, RM
    JOURNAL OF LUMINESCENCE, 1991, 48-9 (pt 1) : 204 - 208
  • [22] High-resolution laser-induced fluorescence spectra of 7-azaindole-water complexes and 7-azaindole dimer
    Nakajima, A
    Hirano, M
    Hasumi, R
    Kaya, K
    Watanabe, H
    Carter, CC
    Williamson, JM
    Miller, TA
    JOURNAL OF PHYSICAL CHEMISTRY A, 1997, 101 (04): : 392 - 398
  • [23] COMPLEXATION OF 7-AZAINDOLE BY THE METHYLMERCURY(II) CATION
    DUFOUR, N
    LEBUIS, AM
    CORBEIL, MC
    BEAUCHAMP, AL
    DUFOUR, P
    DARTIGUENAVE, Y
    DARTIGUENAVE, M
    CANADIAN JOURNAL OF CHEMISTRY-REVUE CANADIENNE DE CHIMIE, 1992, 70 (12): : 2914 - 2921
  • [24] TETRAMERIC COBALT(II) CLUSTER OF 7-AZAINDOLE
    BROOKES, RW
    MARTIN, RL
    AUSTRALIAN JOURNAL OF CHEMISTRY, 1975, 28 (06) : 1363 - 1366
  • [25] Synthesis and pharmacological activities of 7-azaindole derivatives
    Mushtaq, Nousheen
    Saify, Z. S.
    Noor, Fozia
    Takween, Shamoona
    Akhtar, Shamim
    Arif, Muhammad
    Khan, Khalid M.
    PAKISTAN JOURNAL OF PHARMACEUTICAL SCIENCES, 2008, 21 (01) : 36 - 39
  • [26] Luminescence and reactivity of 7-azaindole derivatives and complexes
    Zhao, Shu-Bin
    Wang, Suning
    CHEMICAL SOCIETY REVIEWS, 2010, 39 (08) : 3142 - 3156
  • [27] Terahertz spectroscopy of 7-azaindole clusters in solution
    Fedor, Anna M.
    Korter, Timothy M.
    CHEMICAL PHYSICS LETTERS, 2006, 429 (4-6) : 405 - 409
  • [28] PHOTOPHYSICS OF A NOVEL OPTICAL PROBE - 7-AZAINDOLE
    NEGRERIE, M
    GAI, F
    BELLEFEUILLE, SM
    PETRICH, JW
    JOURNAL OF PHYSICAL CHEMISTRY, 1991, 95 (22): : 8663 - 8670
  • [29] On the molecular structure that produces the phosphorescence of 7-azaindole
    Catalán, J
    INTERNATIONAL JOURNAL OF QUANTUM CHEMISTRY, 2005, 102 (05) : 489 - 497
  • [30] DIMERIC NICKEL(II) COMPLEX OF 7-AZAINDOLE
    BROOKESR.
    MARTIN, RL
    AUSTRALIAN JOURNAL OF CHEMISTRY, 1974, 27 (07) : 1569 - 1571
12345