✦ LIBER ✦

Dimer spectra of rhodamine B

✍ Scribed by Takashi Kajiwara; Richard W. Chambers; David R. Kearns

Publisher: Elsevier Science
Year: 1973
Tongue: English
Weight: 332 KB
Volume: 22
Category: Article
ISSN: 0009-2614
DOI: 10.1016/0009-2614(73)80529-9

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✦ Synopsis

Rcceivcd 31 May 1973

The visible sbvJrption fluorescenrr and phosphorescence spectra and the polarized fh~orcsccncc and phosphoresccnce cxcitation spectra hwc been measuied for the dimer form of rhodnmine B. The rhodamine B dimer is somelvhat unique in that it exhibits both fluorescence and phosphorescence wherus other dyes usually cshibit onIy phosphorescence from the dimer. This unusual siruntion hz permitted us to ~rry out the first dctailcd eudv oE the polxized absorption 2nd emission spectra of rhodnminc I3 dimers. Simple esciton theory, cor;~mor?ly ucd to interpret the spectral properties of dimers, cannot account ior the polarization properties ol the absorption and en~isti~~fi sp~ct~a of tlvz rhodaminc B dimer.

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