Adsorption of azothiophene dye having an N-bridging bidentate tail group on gold

The novel azothiophene derivatives [AT-di(CnSAc) (n=6 and 12)], an azo linkage (N=N) that bridges one phenyl ring with an N-bridging dialkylthioacetate tail and one thiophene ring, are synthesized and characterized. The azothiophene derivatives substituted with electron-withdrawing groups are blue i...

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Veröffentlicht in:Langmuir : the ACS journal of surfaces and colloids. - 1992. - 25(2009), 18 vom: 15. Sept., Seite 10788-93
1. Verfasser: Bang, Gyeong Sook (VerfasserIn)
Weitere Verfasser: Lee, Junghyun, Baek, Hee Yoel, Lee, Hyoyoung, Jun, Kun, Shin, Seung Rim
Format: Online-Aufsatz
Sprache:English
Veröffentlicht: 2009
Zugriff auf das übergeordnete Werk:Langmuir : the ACS journal of surfaces and colloids
Schlagworte:Journal Article Research Support, Non-U.S. Gov't Buffers Coloring Agents Sulfhydryl Compounds Thiophenes Sulfur 70FD1KFU70 Gold 7440-57-5
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245 1 0 |a Adsorption of azothiophene dye having an N-bridging bidentate tail group on gold 
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520 |a The novel azothiophene derivatives [AT-di(CnSAc) (n=6 and 12)], an azo linkage (N=N) that bridges one phenyl ring with an N-bridging dialkylthioacetate tail and one thiophene ring, are synthesized and characterized. The azothiophene derivatives substituted with electron-withdrawing groups are blue in color, exhibit a bathochromic shift of a longer wavelength, and are electrochemically active. The formation and characterization of AT-di(CnSAc) SAMs with a bidentate tail group of the N-bridging dialkylthioacetate have been studied by surface sensitive techniques such as grazing angle Fourier transform infrared (FT-IR), a quartz crystal microbalance (QCM), spectroscopic ellipsometry, X-ray photoelectron spectroscopy (XPS), and cyclic voltammetry (CV). It has been shown that the adsorption reaction of the thioacetate group is almost spontaneous and the N-bridging dialkylthioacetate SAMs with longer methylene length have a packing density higher than that with a shorter methylene length. However, the sulfur tethers of the N-bridging dialkylthioacetate show incomplete binding of sulfur atoms in AT-di(CnSAc) SAMs 
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650 7 |a 70FD1KFU70  |2 NLM 
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650 7 |a 7440-57-5  |2 NLM 
700 1 |a Lee, Junghyun  |e verfasserin  |4 aut 
700 1 |a Baek, Hee Yoel  |e verfasserin  |4 aut 
700 1 |a Lee, Hyoyoung  |e verfasserin  |4 aut 
700 1 |a Jun, Kun  |e verfasserin  |4 aut 
700 1 |a Shin, Seung Rim  |e verfasserin  |4 aut 
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