High-resolution laser-induced fluorescence spectra of 7-azaindole-water complexes and 7-azaindole dimer

Atsushi Nakajima, M. Hirano, R. Hasumi, K. Kaya, H. Watanabe, C. C. Carter, J. M. Williamson, Terry A. Miller

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Abstract

The geometric structures of 7-azaindole-water complexes, (7-AzI)-(H2O)n (n = 1-3), and 7-AzI dimer were investigated by laser-induced fluorescence (LIF) spectroscopy with high resolution (∼0.01 cm-1). For the 7-AzI-(H2O)n complexes (n = 1-3), the LIF spectra show partially resolved rotational structure, which has been analyzed in combination with theoretical calculations. This analysis yields the rotational constants and characterizes the structures. In 7-AzI-(H2O)1, the H2O molecule is located in the molecular plane, forming a six-membered ring with two hydrogen bonds. Analyses for 7-AzI-(H2O)2 and -(H2O)3 show, furthermore, that both the second and the third H2O are located in the molecular plane of 7-AzI, forming a network ring of hydrogen bonds. For the 7-AzI dimer, the LIF spectrum shows an unresolved rotational envelope. The rotational contour has been analyzed, and we discuss the dimer's likely structure.

Original languageEnglish
Pages (from-to)392-398
Number of pages7
JournalJournal of Physical Chemistry A
Volume101
Issue number4
Publication statusPublished - 1997 Jan 23

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laser induced fluorescence
Fluorescence
dimers
Water
Lasers
high resolution
water
Dimers
Hydrogen bonds
hydrogen bonds
rings
Fluorescence spectroscopy
7-azaindole dimer
envelopes
Molecules
spectroscopy
molecules

ASJC Scopus subject areas

  • Physical and Theoretical Chemistry

Cite this

Nakajima, A., Hirano, M., Hasumi, R., Kaya, K., Watanabe, H., Carter, C. C., ... Miller, T. A. (1997). High-resolution laser-induced fluorescence spectra of 7-azaindole-water complexes and 7-azaindole dimer. Journal of Physical Chemistry A, 101(4), 392-398.

High-resolution laser-induced fluorescence spectra of 7-azaindole-water complexes and 7-azaindole dimer. / Nakajima, Atsushi; Hirano, M.; Hasumi, R.; Kaya, K.; Watanabe, H.; Carter, C. C.; Williamson, J. M.; Miller, Terry A.

In: Journal of Physical Chemistry A, Vol. 101, No. 4, 23.01.1997, p. 392-398.

Research output: Contribution to journalArticle

Nakajima, A, Hirano, M, Hasumi, R, Kaya, K, Watanabe, H, Carter, CC, Williamson, JM & Miller, TA 1997, 'High-resolution laser-induced fluorescence spectra of 7-azaindole-water complexes and 7-azaindole dimer', Journal of Physical Chemistry A, vol. 101, no. 4, pp. 392-398.
Nakajima, Atsushi ; Hirano, M. ; Hasumi, R. ; Kaya, K. ; Watanabe, H. ; Carter, C. C. ; Williamson, J. M. ; Miller, Terry A. / High-resolution laser-induced fluorescence spectra of 7-azaindole-water complexes and 7-azaindole dimer. In: Journal of Physical Chemistry A. 1997 ; Vol. 101, No. 4. pp. 392-398.
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AU - Nakajima, Atsushi

AU - Hirano, M.

AU - Hasumi, R.

AU - Kaya, K.

AU - Watanabe, H.

AU - Carter, C. C.

AU - Williamson, J. M.

AU - Miller, Terry A.

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