Spectroscopy of EDA Complexes at High Pressures. VI. Absorption and Fluorescence of Crystalline TNB and TNF Complexes
- 15 January 1968
- journal article
- research article
- Published by AIP Publishing in The Journal of Chemical Physics
- Vol. 48 (2) , 749-753
- https://doi.org/10.1063/1.1668707
Abstract
Several aromatic hydrocarbons are complexed with trinitrobenzene (TNB) and trinitrofluorenone (TNF) in the crystalline state and subjected to increasing pressures (0-30 kbar). The charge transfer absorption shows a ∼1200 cm−1 red shift, while the fluorescence red shift may vary between 200-1700 cm−1 at 25 kbar. In the same complexes the Stokes shift decreases at higher pressures. This decrease can be understood in terms of charge-transfer forces and potential energy curves appropriate for weak EDA complexes.Keywords
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