Topic
Xanthene
About: Xanthene is a research topic. Over the lifetime, 2132 publications have been published within this topic receiving 34803 citations. The topic is also known as: Xanthene & dibenzo[a,e]pyran.
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TL;DR: In this paper, the spectra of the dimeric species of Pyronine B were fitted to theoretical spectra calculated from two excition interaction theories, and the existence of a weak coupling arising from the nuclear momenta and predicted by an adiabatic theory of exciton interactions in dimers was confirmed.
Abstract: Characteristic visible spectra of the monomeric and dimeric species of Pyronine B in aqueous solution have been obtained. The spectra of the dimeric species of the xanthene dyes Rhodamine B, Pyronine Y and Pyronine B were fitted to, and compared with, theoretical spectra calculated from two excition interaction theories. The existence of a weak coupling arising from the nuclear momenta and predicted by an adiabatic theory of exciton interactions in dimers is confirmed.
9 citations
Patent•
30 Dec 1952
9 citations
9 citations
TL;DR: The proposed method is applicable to the selective and sensitive determination of cetylpyridinium chloride, berberine chloride and benzethonium chloride in pharmaceuticals.
9 citations
TL;DR: The authors showed that xanthene carbinol and xanthenylidene derivative 2a with refluxing formic acid gave dihydro compound 3a and 3b.
9 citations