Geometric change of a thiacalix[4]arene supramolecular gel with volatile gases and its chromogenic detection for rapid analysis

Ka Young Kim, Sunhong Park, Sung Ho Jung, Shim Sung Lee, Ki Min Park, Seiji Shinkai, Jong Hwa Jung

研究成果: ジャーナルへの寄稿記事

17 引用 (Scopus)

抄録

A coordination polymer gel that is self-assembled to form a network structure between a thiacalix[4]arene derivative (L) and Co 2+ has been prepared. This gel is capable of selectively changing color in the presence of gases that yield hydrogen chloride upon hydrolysis. The UV-vis absorption spectrum of a coordination polymer gel derived from Co(NO 3 ) 2 exhibits an absorption band at 527 nm and is colored red, indicating the formation of an octahedral Co 2+ complex. Treatment with a small amount of volatile gases containing a chlorine atom (VGCl) causes a red shift of ∼150 nm, resulting in a new strong band with a maximum at 670 nm and a color change to blue. In addition, the red color of the filter paper coated with a Co(NO 3 ) 2 coordination polymer gel changed to blue upon exposure to VGCl, reflecting a change in the coordination geometry. Red and blue colors of single crystals of Co 2+ complexes were obtained from a basic solution. From X-ray crystallographic analysis, the red Co 2+ complex corresponds to an octahedral structure, while the blue Co 2+ complex reflects the presence of a tetrahedral structure. Thus, the induced color change of Co 2+ gel from red to blue upon exposure to VGCl is due to the coordination geometry. The quantitative concentration of VGCl was calculated by employing the RGB histogram available in a smartphone application.

元の言語英語
ページ(範囲)3004-3011
ページ数8
ジャーナルInorganic chemistry
53
発行部数6
DOI
出版物ステータス出版済み - 3 17 2014
外部発表Yes

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Chromogenics
Gases
Gels
gels
Color
color
coordination polymers
Polymers
gases
Absorption spectra
absorption spectra
hydrogen chlorides
Geometry
Hydrochloric Acid
Smartphones
Chlorine
geometry
histograms
red shift
chlorine

All Science Journal Classification (ASJC) codes

  • Physical and Theoretical Chemistry
  • Inorganic Chemistry

これを引用

Geometric change of a thiacalix[4]arene supramolecular gel with volatile gases and its chromogenic detection for rapid analysis. / Kim, Ka Young; Park, Sunhong; Jung, Sung Ho; Lee, Shim Sung; Park, Ki Min; Shinkai, Seiji; Jung, Jong Hwa.

:: Inorganic chemistry, 巻 53, 番号 6, 17.03.2014, p. 3004-3011.

研究成果: ジャーナルへの寄稿記事

Kim, Ka Young ; Park, Sunhong ; Jung, Sung Ho ; Lee, Shim Sung ; Park, Ki Min ; Shinkai, Seiji ; Jung, Jong Hwa. / Geometric change of a thiacalix[4]arene supramolecular gel with volatile gases and its chromogenic detection for rapid analysis. :: Inorganic chemistry. 2014 ; 巻 53, 番号 6. pp. 3004-3011.
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abstract = "A coordination polymer gel that is self-assembled to form a network structure between a thiacalix[4]arene derivative (L) and Co 2+ has been prepared. This gel is capable of selectively changing color in the presence of gases that yield hydrogen chloride upon hydrolysis. The UV-vis absorption spectrum of a coordination polymer gel derived from Co(NO 3 ) 2 exhibits an absorption band at 527 nm and is colored red, indicating the formation of an octahedral Co 2+ complex. Treatment with a small amount of volatile gases containing a chlorine atom (VGCl) causes a red shift of ∼150 nm, resulting in a new strong band with a maximum at 670 nm and a color change to blue. In addition, the red color of the filter paper coated with a Co(NO 3 ) 2 coordination polymer gel changed to blue upon exposure to VGCl, reflecting a change in the coordination geometry. Red and blue colors of single crystals of Co 2+ complexes were obtained from a basic solution. From X-ray crystallographic analysis, the red Co 2+ complex corresponds to an octahedral structure, while the blue Co 2+ complex reflects the presence of a tetrahedral structure. Thus, the induced color change of Co 2+ gel from red to blue upon exposure to VGCl is due to the coordination geometry. The quantitative concentration of VGCl was calculated by employing the RGB histogram available in a smartphone application.",
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AB - A coordination polymer gel that is self-assembled to form a network structure between a thiacalix[4]arene derivative (L) and Co 2+ has been prepared. This gel is capable of selectively changing color in the presence of gases that yield hydrogen chloride upon hydrolysis. The UV-vis absorption spectrum of a coordination polymer gel derived from Co(NO 3 ) 2 exhibits an absorption band at 527 nm and is colored red, indicating the formation of an octahedral Co 2+ complex. Treatment with a small amount of volatile gases containing a chlorine atom (VGCl) causes a red shift of ∼150 nm, resulting in a new strong band with a maximum at 670 nm and a color change to blue. In addition, the red color of the filter paper coated with a Co(NO 3 ) 2 coordination polymer gel changed to blue upon exposure to VGCl, reflecting a change in the coordination geometry. Red and blue colors of single crystals of Co 2+ complexes were obtained from a basic solution. From X-ray crystallographic analysis, the red Co 2+ complex corresponds to an octahedral structure, while the blue Co 2+ complex reflects the presence of a tetrahedral structure. Thus, the induced color change of Co 2+ gel from red to blue upon exposure to VGCl is due to the coordination geometry. The quantitative concentration of VGCl was calculated by employing the RGB histogram available in a smartphone application.

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