Negative ion photoelectron spectroscopy of acridine molecular anion and its monohydrate

Shinsuke Kokubo, Naoto Ando, Kiichirou Koyasu, Masaaki Mitsui, Atsushi Nakajima

Research output: Contribution to journalArticle

6 Citations (Scopus)

Abstract

Negative ion photoelectron spectroscopy was employed to investigate the electronic structure of the acridine molecular anion and its monohydrated anion in the gas phase. Their adiabatic electron affinities were measured to be 0.896±0.010 and 1.18±0.05 eV, and the low-lying electronic excited states in both neutral acridine and in its monohydrate were revealed. The photoelectron spectra clearly exhibit the presence of low-lying singlet and triplet states having a (π, π*) configuration in an uncomplexed acridine molecule. Comparison of the photoelectron spectrum of acridine with that of anthracene shows that photodetachment processes into the excited states of (n, π*) configuration have little intensity, implying a relatively large intramolecular structural relaxation in the (n, π*) states.

Original languageEnglish
Article number6
Pages (from-to)11112-11117
Number of pages6
JournalJournal of Chemical Physics
Volume121
Issue number22
DOIs
Publication statusPublished - 2004 Dec 8

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Acridines
Photoelectron spectroscopy
negative ions
Anions
photoelectrons
Negative ions
photoelectron spectroscopy
anions
photodetachment
anthracene
Photoelectrons
configurations
electron affinity
Excited states
atomic energy levels
excitation
vapor phases
electronic structure
Electron affinity
Structural relaxation

ASJC Scopus subject areas

  • Atomic and Molecular Physics, and Optics

Cite this

Negative ion photoelectron spectroscopy of acridine molecular anion and its monohydrate. / Kokubo, Shinsuke; Ando, Naoto; Koyasu, Kiichirou; Mitsui, Masaaki; Nakajima, Atsushi.

In: Journal of Chemical Physics, Vol. 121, No. 22, 6, 08.12.2004, p. 11112-11117.

Research output: Contribution to journalArticle

Kokubo, Shinsuke ; Ando, Naoto ; Koyasu, Kiichirou ; Mitsui, Masaaki ; Nakajima, Atsushi. / Negative ion photoelectron spectroscopy of acridine molecular anion and its monohydrate. In: Journal of Chemical Physics. 2004 ; Vol. 121, No. 22. pp. 11112-11117.
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