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TRIPLET-TRIPLET SEPCTROSCOPY IN THE INFRARTED

Please use this identifier to cite or link to this item: http://hdl.handle.net/1811/11564

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Title: TRIPLET-TRIPLET SEPCTROSCOPY IN THE INFRARTED
Creators: Baiardo, Joseph; Mukherjee, Ranajit; Vala, Martin
Issue Date: 1981
Abstract: We have employed a Fourier Transform infrared Spectrometer to examine the T-T absorption spectrum of phenanthrene in PMMA at $15^{\circ} K$ in the near IR and viaible $(5000 ~~\mbox{cm}^{-1}$ to $23000 ~~\mbox{cm}^{-1})$ using CW excitation. T-T bands previously $reported^{1}$ in the $10000-230000 cm^{-1}$ range have been confirmed. However, no bands were observed in the 5000 to $100000 cm^{-1}$ range. From our S/N measurements in this region we conservationvely estaimate a minimum detectable c of 50 $mole^{-1}$ $cm^{-1}$. We are presently investigating the $400-5000 cm^{-1}$ region in $N_{2}$ matrices. This preliminary work demonstrates the feasibility of using the FT technique to observe absorption spectra of excited triplet species in the infrared and visible regions.
URI: http://hdl.handle.net/1811/11564
Other Identifiers: 1981-MH-2
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