THE REFLECTION SPECTRA AND ELECTRONIC STRUCTURE OF SINGLE CRYSTALS OF 1,5-bis-(DIMETHYLAMINO)PENTAMETHINIUM $PERCHLORATE^{\ast}$
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Date
1964
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Ohio State University
Abstract
The unusual visible and ultraviolet reflection spectra obtained for single crystals of the polymethinium dye 1,5-bis-(dimethylamino) pentamethinium perchlorate have been reported $previously.^{1}$ These spectra, as well as those for some heretofore uninvestigated faces, will be interpreted in terms of the detailed crystal structure, which was recently determined using x-ray diffraction techniques. The discussion will include the presentation of the results of calculations based on molecular exciton theory and a consideration of the relationship between the reflection spectra and the other optical properties of these crystals.
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$^{\ast}$ Supported in part by the National Science Foundation. $^{\dag}$ National Institutes of Health Predoctoral Fellow. $^{1}$ B. G. Anex and W. T. Simpson, Rev. Mod. Phys. 32, 466 (1960).
Author Institution: Sterling Chemistry Laboratory, Yale University
Author Institution: Sterling Chemistry Laboratory, Yale University