Surface potential switching by metal ion complexation/decomplexation using bipyridinethiolate monolayers on gold

Tohru Nakamura, Emiko Koyama, Yukihiro Shimoi, Shuji Abe, Takao Ishida, Kiyomi Tsukagoshi, Wataru Mizutani, Hideo Tokuhisa, Masatoshi Kanesato, Ikuyo Nakai, Hiroshi Kondoh, Toshiaki Ohta

Research output: Contribution to journalArticle

13 Citations (Scopus)

Abstract

Surface potential switching on gold(111) surfaces is induced by complexation/decomplexation reactions of a bipyridine (BP) derivative and palladium(II) chloride, as observed by Kelvin probe force microscopy (KFM). On the basis of the theoretical predictions, a 4-(5-phenylethynyl-2,2′- bipyridine-5′-yl-ethynyl)benzenethiol (PhBP) derivative was synthesized and used as an active monolayer to catch transition metal ions. By using the microcontact printing (CP) technique, micron-size patterned PhBP monolayers, which act as effective hosts to coordinate palladium(II) chloride, were prepared on gold(111) surfaces. The KFM signal decreases by complexation of the Pd(II) chloride in PhBP monolayers and is recovered by removal of Pd ions using an ethylenediamine solution, as confirmed by X-ray photoelectron spectroscopy. This process is reversible, indicating that the surface potential switching is realized by complexation/decomplexation of Pd(K). A CP PhBP monolayer, when it detects the target palladium ion, shows sensitivity for the picomolar level detection judged from surface potential changes in KFM measurements. The dipole moment estimated by the surface potentials is much smaller than the calculated value, indicating that mechanisms for the reduction of the surface dipole moment exist in real monolayers prepared by the CP method.

Original languageEnglish
Pages (from-to)9195-9203
Number of pages9
JournalJournal of Physical Chemistry B
Volume110
Issue number18
DOIs
Publication statusPublished - 2006 May 11
Externally publishedYes

Fingerprint

Surface potential
Complexation
Gold
Metal ions
Monolayers
metal ions
gold
Palladium
Chlorides
Microscopic examination
ethylenediamine
Dipole moment
palladium
chlorides
microscopy
Ions
Derivatives
probes
dipole moments
Transition metals

ASJC Scopus subject areas

  • Physical and Theoretical Chemistry

Cite this

Nakamura, T., Koyama, E., Shimoi, Y., Abe, S., Ishida, T., Tsukagoshi, K., ... Ohta, T. (2006). Surface potential switching by metal ion complexation/decomplexation using bipyridinethiolate monolayers on gold. Journal of Physical Chemistry B, 110(18), 9195-9203. https://doi.org/10.1021/jp056821d

Surface potential switching by metal ion complexation/decomplexation using bipyridinethiolate monolayers on gold. / Nakamura, Tohru; Koyama, Emiko; Shimoi, Yukihiro; Abe, Shuji; Ishida, Takao; Tsukagoshi, Kiyomi; Mizutani, Wataru; Tokuhisa, Hideo; Kanesato, Masatoshi; Nakai, Ikuyo; Kondoh, Hiroshi; Ohta, Toshiaki.

In: Journal of Physical Chemistry B, Vol. 110, No. 18, 11.05.2006, p. 9195-9203.

Research output: Contribution to journalArticle

Nakamura, T, Koyama, E, Shimoi, Y, Abe, S, Ishida, T, Tsukagoshi, K, Mizutani, W, Tokuhisa, H, Kanesato, M, Nakai, I, Kondoh, H & Ohta, T 2006, 'Surface potential switching by metal ion complexation/decomplexation using bipyridinethiolate monolayers on gold', Journal of Physical Chemistry B, vol. 110, no. 18, pp. 9195-9203. https://doi.org/10.1021/jp056821d
Nakamura, Tohru ; Koyama, Emiko ; Shimoi, Yukihiro ; Abe, Shuji ; Ishida, Takao ; Tsukagoshi, Kiyomi ; Mizutani, Wataru ; Tokuhisa, Hideo ; Kanesato, Masatoshi ; Nakai, Ikuyo ; Kondoh, Hiroshi ; Ohta, Toshiaki. / Surface potential switching by metal ion complexation/decomplexation using bipyridinethiolate monolayers on gold. In: Journal of Physical Chemistry B. 2006 ; Vol. 110, No. 18. pp. 9195-9203.
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