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Terahertz Absorption Spectroscopy of a Liquid Using a Polarity Probe: A Case Study of Trehalose/Water Mixtures
Author(s) -
Sajadi Mohsen,
Ajaj Yathrib,
Ioffe Ilya,
Weingärtner Hermann,
Ernsting Nikolaus P.
Publication year - 2010
Publication title -
angewandte chemie international edition
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 5.831
H-Index - 550
eISSN - 1521-3773
pISSN - 1433-7851
DOI - 10.1002/anie.200904997
Subject(s) - spectroscopy , terahertz radiation , trehalose , absorption (acoustics) , materials science , terahertz spectroscopy and technology , molecule , fluorescence spectroscopy , absorption spectroscopy , relaxation (psychology) , analytical chemistry (journal) , supramolecular chemistry , polarity (international relations) , fluorescence , chemical physics , chemistry , optoelectronics , optics , organic chemistry , physics , psychology , social psychology , biochemistry , quantum mechanics , composite material , cell
The fluorescence relaxation of N ‐methyl‐6‐quinolone was used to determine the frequency‐dependent permittivity of the molecular environment over a large spectral range (see picture), for example in trehalose–water solution. Local THz‐FIR spectroscopy can be realized by covalent attachment of the probe molecule to a supramolecular structure.