SPECTROSCOPY OF EDA COMPLEXES AT HIGH PRESSURES. V. ABSORPTION OF CRYSTALLINE TCNE COMPLEXES.
CALIFORNIA UNIV SANTA BARBARA DEPT OF CHEMISTRY
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Five aromatic hydrocarbon-tetracyanoethylene TCNE complexes were dispersed in sodium chloride pellets and subjected to high pressures 0-25 kbar. The charge transfer absorption was enhanced and displaced toward lower energies at the highest pressure. An exception is the crystalline complex HMB-TCNE which exhibits a blue shift at the highest pressure. The doublet structure in both charge transfer bands of naphthalene-TCNE can be observed at 1 atm and at at higher pressures. The importance of the relative sizes of donor and acceptor in environmental interactions are discussed. Author
- Atomic and Molecular Physics and Spectroscopy