Formation of host–guest complexes on gold surface investigated by surface-enhanced IR absorption spectroscopy

Chemical Physics Letters Volume 592 Page 90-95 published_at 2014-01-30
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Title ( eng )
Formation of host–guest complexes on gold surface investigated by surface-enhanced IR absorption spectroscopy
Creator
Mizuuchi Takahiro
Kimura Tetsunari
Guo Hao
Furutani Yuji
Source Title
Chemical Physics Letters
Volume 592
Start Page 90
End Page 95
Abstract
We apply surface-enhanced infrared absorption (SEIRA) spectroscopy to host-guest complexes in liquid phase to examine the structural change in the complex formation. Two thiol derivatives of 18-crown-6 (18C6) are chemisorbed on a gold surface, and aqueous solutions of MCl salts (M = Li, Na, K, Rb, and Cs) are put to form M+・18C6 complexes. Infrared spectra of these complexes in the 900-2000 cm-1 region are obtained by SEIRA spectroscopy. The observed IR spectra show noticeable peaks due to the complex formation, demonstrating that SEIRA spectroscopy will be a powerful method to investigate the structure of host-guest complexes in supramolecular chemistry.
Keywords
water
crown ether
infrared
solvent effect
SEIRA
FTIR
ATR
NDC
Chemistry [ 430 ]
Language
eng
Resource Type journal article
Publisher
Elsevier B.V.
Date of Issued 2014-01-30
Rights
Copyright (c) 2013 Elsevier B.V.
Publish Type Author’s Original
Access Rights open access
Source Identifier
[ISSN] 0009-2614
[DOI] 10.1016/j.cplett.2013.12.026
[DOI] http://dx.doi.org/10.1016/j.cplett.2013.12.026 isVersionOf