dc.creator Marchetti, Alfred P. en_US dc.creator Scozzafava, M. en_US dc.date.accessioned 2006-06-15T13:50:40Z dc.date.available 2006-06-15T13:50:40Z dc.date.issued 1976 en_US dc.identifier 1976-TR-2 en_US dc.identifier.uri http://hdl.handle.net/1811/9876 dc.description Author Institution: Eastman Kodak Company Research Laboratories en_US dc.description.abstract The singlet-triplet absorption spectrum of crystalline $1,1^{\prime}$-diethyl-$2,2^{\prime}$-cyanine iodide has been obtained. The absorption origin consists of two lines separated by $\sim 4.0$ $cm^{-1}$. Zeeman spectra were used to assign the higher energy, more intense line to the $A_{u}$ factor group state and the lower energy line to the $B_{u}$ factor group state. Emission spectra have been obtained on both dilute and concentrated solid solutions of the dye. The results from the concentrated samples indicate that the largest excitation-transfer interaction between crystallographically equivalent molecules is less than $1 cm^{-1}$. This work represents the first spectroscopic characterization of the triplet state of an ionic dye crystal. en_US dc.format.extent 93251 bytes dc.format.mimetype image/jpeg dc.language.iso English en_US dc.publisher Ohio State University en_US dc.title THE TRIPLET STATE OF $1,1'$-DIETHYL-$2,2'$-CYANINE IODIDE IN NEAT AND MIXED CRYSTALS en_US dc.type article en_US
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