The absorption spectrum of the pyrene excimer in a single crystal has been measured. The spectrum is similar to that obtained in solution. The polarization of the absorption peaks in the crystal was found to be similar to that of the excimer fluorescence emission. The overlap between the excimeric e
Experimental determination of the pyrene crystal excimer interaction potential
β Scribed by J.B. Birks; A.A. Kazzaz
- Publisher
- Elsevier Science
- Year
- 1967
- Tongue
- English
- Weight
- 206 KB
- Volume
- 1
- Category
- Article
- ISSN
- 0009-2614
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β¦ Synopsis
From observations and ana!ysis of the pyrene crystal excimer fluorescence spectra from 4OK to 353OK, the cxcimer interaction potcntinl V' = 51 33U-(1.136~ 106)/d (cm-l) has been determined as a function of the intermolecular separation Y iA). V is consistent with an exciton resonance state originating from the moiecular lBa state.
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Interaction potentials between Ar (IS,) and hydroxyl radicals in the A%+ and X 'Hi,, states are constructed as a function of OH (center-of-mass) to Ar separation distance. The intermolecular potentials are derived from spectral analysis of the OH-Ar fluorescence excimtion spectrum observed about th
Rcwncd 9 Dcrerrtbcr I977 By a combination ot mtcro-ckctron diffractIon and Jton-atom. pairxtw potcnttal cJcuLttons. the brtberto unsolved 5truLture of the Ion rcmperature ph,tse ofpyrene 11.15 been dctermmcd.
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