Publication Type Journal Article
Title Coupled States in Dinitrofluorene: Relationships between Ground State and Excited State Mixed Valence
Authors Matthew D. Kiesz Ryan M. Hoekstra Yen-Ting Chen J. P. Telo Stephen F. Nelsen Jeffrey I. Zink
Groups BioMol
Journal JOURNAL OF PHYSICAL CHEMISTRY A
Year 2014
Month December
Volume 118
Number 49
Pages 11490-11498
Abstract The electronic absorption spectrum of 9,9-dimethyl-2,7-dinitrofluorene radical anion in HMPA displays both a NIR intervalence charge transfer and a visible excited state mixed valence transition. These transitions contain a similar vibronic progression resulting from molecular orbitals that are common to both transitions. Vibrational frequency and intensity data are acquired from the resonance Raman spectrum and used to calculate a best fit for the absorption spectrum. The normal coordinate distortions are analyzed in terms of the electronic changes for both transitions to explain their similarity. The Raman scattering intensity decreases at lower excitation wavelength as a result of Raman de-enhancement caused by interference between neighboring excited states.
DOI http://dx.doi.org/10.1021/jp505299p
ISBN
Publisher AMER CHEMICAL SOC
Book Title
ISSN 1089-5639
EISSN
Conference Name
Bibtex ID ISI:000346320800006
Observations
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