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A. Nakajima, F. Ono, Y. Kihara, A. Ogawa, K. Matsubara, K. Ishikawa, M. Baba, k. kaya, "Spectroscopic Study of Hydrogen Bonded7-Azaindole Clusters", Laser Chemistry, vol. 15, Article ID 063470, 15 pages, 1995. https://doi.org/10.1155/1995/63470
Spectroscopic Study of Hydrogen Bonded7-Azaindole Clusters
The geometric structures of 7-azaindole (7-AzI) and its dimer were investigated by laser-induced fluorescence (LIF). The rotationally resolved LIF spectrum (resolution: ∼0.00003 cm-1 of 7-AzI monomer shows that (i) rotational constants are A′′ 0.13082(5), B′′ = 0.05677(2), C′′ = 0.03970(1), A′ = 0.12468(5), B′ = 0.056752(2), and C′ = 0.03911(1), and (ii) the transition dipole moment direction is tilted at an angle of ± 21(5) degrees with respect to a axis. The LIF spectrum (resolution: ∼0.06 cm-1) of the nonreactive 7-AzI dimer suggests there are three possibilities for the geometric structure, having “single bonded”, “T-shaped”, and “non-planar” structures.The ionization energy of 7-AzI was determined to be 8.1171(5) eV by using pulsed-field ionization photoelectron spectroscopy (PFI-PES). Several vibronic bands of 7-AzI cation were observed and compared with those of neutral 7-AzI in the S0 and S1 states. The electron binding energies of 7-AzI cluster anions (2 ≤ n ≤ 5) were determined by photoelectron spectroscopy.
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