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Anthracene Fluorescence Quenching by a Tetrakis (Ketocarboxamide) Cavitand
Joint Authors
Janosi, Tibor Zoltan
Korppi-Tommola, Jouko
Csok, Zsolt
Kollar, Laszlo
Myllyperkio, Pasi
Erostyák, János
Source
Issue
Vol. 2014, Issue 2014 (31 Dec. 2014), pp.1-8, 8 p.
Publisher
Hindawi Publishing Corporation
Publication Date
2014-08-06
Country of Publication
Egypt
No. of Pages
8
Main Subjects
Abstract EN
Quenching of both fluorescence lifetime and fluorescence intensity of anthracene was investigated in the presence of a newly derived tetrakis (ketocarboxamide) cavitand at various concentrations.
Time-correlated single photon counting method was applied for the lifetime measurements.
A clear correlation between the fluorescence lifetime of anthracene as a function of cavitand concentration in dimethylformamide solution was observed.
The bimolecular collisional quenching constant was derived from the decrease of lifetime.
Fluorescence intensity was measured in the emission wavelength region around 400 nm as a result of excitation at 280 nm.
Effective quenching was observed in the presence of the cavitand.
The obtained Stern-Volmer plot displayed upward curvature.
The results did not follow even extended Stern-Volmer behavior, often used to describe deviations from static bimolecular quenching.
To explain our results we adopted the Smoluchowski model and obtained a reasonable estimate for the molecular radius of the cavitand in solution.
American Psychological Association (APA)
Janosi, Tibor Zoltan& Korppi-Tommola, Jouko& Csok, Zsolt& Kollar, Laszlo& Myllyperkio, Pasi& Erostyák, János. 2014. Anthracene Fluorescence Quenching by a Tetrakis (Ketocarboxamide) Cavitand. Journal of Spectroscopy،Vol. 2014, no. 2014, pp.1-8.
https://search.emarefa.net/detail/BIM-1043133
Modern Language Association (MLA)
Janosi, Tibor Zoltan…[et al.]. Anthracene Fluorescence Quenching by a Tetrakis (Ketocarboxamide) Cavitand. Journal of Spectroscopy No. 2014 (2014), pp.1-8.
https://search.emarefa.net/detail/BIM-1043133
American Medical Association (AMA)
Janosi, Tibor Zoltan& Korppi-Tommola, Jouko& Csok, Zsolt& Kollar, Laszlo& Myllyperkio, Pasi& Erostyák, János. Anthracene Fluorescence Quenching by a Tetrakis (Ketocarboxamide) Cavitand. Journal of Spectroscopy. 2014. Vol. 2014, no. 2014, pp.1-8.
https://search.emarefa.net/detail/BIM-1043133
Data Type
Journal Articles
Language
English
Notes
Includes bibliographical references
Record ID
BIM-1043133