Formation of host-guest complexes on gold surface investigated by surface-enhanced IR absorption spectroscopy
Formation of host-guest complexes on gold surface investigated by surface-enhanced IR absorption spectroscopy
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DOI：
10.1016/j.cplett.2013.12.026
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发表时间：
2014-01-30
影响因子：
2.8
通讯作者：
Furutani, Yuji
中科院分区：
文献类型：
--
作者：
Inokuchi, Yoshiya;Mizuuchi, Takahiro;Furutani, Yuji
我们应用表面增强红外吸收（SEIRA）光谱对液相中的主客体配合物进行分析，以考察配合物形成过程中的结构变化。18-冠-6 （18C6）的两个硫醇衍生物在金表面化学吸附，MCl盐（M = Li, Na， K， Rb和Cs）的水溶液被放置形成M+.18C6配合物。这些配合物在900 ~ 2000 cm（-1）区域的红外光谱通过SEIRA光谱得到。观察到的红外光谱显示出明显的波峰，表明SEIRA光谱将成为研究超分子化学中主客体配合物结构的有力方法。(C) 2013 Elsevier B.V.版权所有
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. (C) 2013 Elsevier B.V. All rights reserved.