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Characterization of the magneto-optical properties of eosin Y and erythrosin

✍ Scribed by D.H. Harryvan; W.H. Lubberhuizen; E.v. Faassen; Y.K. Levine; G. Kothe

Publisher
Elsevier Science
Year
1996
Tongue
English
Weight
529 KB
Volume
257
Category
Article
ISSN
0009-2614

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✦ Synopsis

We report the results of a study of the properties of the paramagnetic triplet state of eosin Y and erythrosin. This information is a prerequisite for their use as EPR probes. The magnetic anisotropy in both molecules is found to be suitable for monitoring slow rotational dynamics. Interestingly, the magnetic interactions in eosin show a large anisotropy in the x-y plane (E is roughly equal to D/3) of the Magnetic frame. Erythrosin on the other hand, has a virtually isotropic interaction in that plane (E small compared to D/3).

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