Linear and Angular Distyrylpyrazines with Terminal Donor Groups : Synthesis, Solvatochromism, and Acidochromism of the Electronic Spectra
Joint Authors
Detert, Heiner
Fischer, Janina
Schmitt, Volker
Source
Issue
Vol. 2011, Issue 2011 (31 Dec. 2011), pp.1-10, 10 p.
Publisher
Hindawi Publishing Corporation
Publication Date
2011-04-20
Country of Publication
Egypt
No. of Pages
10
Main Subjects
Abstract EN
A series of linear and angular distyrylpyrazines and lateral donor groups has been prepared by aldol condensation between dimethylpyrazines and the appropriate aromatic aldehyde.
The optical absorption and emission properties of these systems were studied in different solvents and media.
The materials display a strong solvatochromism of the emission that is reflected by large red shifts of their fluorescence emission maxima on increasing the solvent polarity.
This behaviour suggests a highly polar emitting state, which is characteristic of compounds that undergo an internal charge transfer upon excitation.
Upon protonation, the UV-vis spectra are altered, and the fluorescence intensity of the neutral compound vanishes.
These molecules can be used as colorimetric and luminescence polarity and pH sensors.
American Psychological Association (APA)
Schmitt, Volker& Fischer, Janina& Detert, Heiner. 2011. Linear and Angular Distyrylpyrazines with Terminal Donor Groups : Synthesis, Solvatochromism, and Acidochromism of the Electronic Spectra. ISRN Organic Chemistry،Vol. 2011, no. 2011, pp.1-10.
https://search.emarefa.net/detail/BIM-483094
Modern Language Association (MLA)
Schmitt, Volker…[et al.]. Linear and Angular Distyrylpyrazines with Terminal Donor Groups : Synthesis, Solvatochromism, and Acidochromism of the Electronic Spectra. ISRN Organic Chemistry No. 2011 (2011), pp.1-10.
https://search.emarefa.net/detail/BIM-483094
American Medical Association (AMA)
Schmitt, Volker& Fischer, Janina& Detert, Heiner. Linear and Angular Distyrylpyrazines with Terminal Donor Groups : Synthesis, Solvatochromism, and Acidochromism of the Electronic Spectra. ISRN Organic Chemistry. 2011. Vol. 2011, no. 2011, pp.1-10.
https://search.emarefa.net/detail/BIM-483094
Data Type
Journal Articles
Language
English
Notes
Includes bibliographical references
Record ID
BIM-483094