Metal-ion permeation in congested nanochannels: The exposure effect of Ag + ions on the phosphorescent properties of a gold(I)-pyrazolate complex that is confined in the nanoscopic channels of mesoporous silica

Hendrik O. Lintang, Kazushi Kinbara, Takashi Yamashita, Takuzo Aida

研究成果: Article査読

25 被引用数 (Scopus)

抄録

An organometallic/silica nanocomposite of a 1D cylindrical assembly of a trinuclear gold(I)-pyrazolate complex ([Au 3Pz 3]) that was confined inside the nanoscopic channels of hexagonal mesoporous silica ([Au 3Pz 3]/silica hex), emitted red light with a luminescence center at 693 nm upon photoexcitation at 276 nm owing to a Au I-Au I metallophilic interaction. When a film of [Au 3Pz 3]/silica hex was dipped into a solution of Ag + in tetrahydrofuran (THF), the resulting nanocomposite material (Agat[Au 3Pz 3]/silica hex) emitted green light with a new luminescence center at 486 nm, which was characteristic of a Au I-Ag I heterometallic interaction. Changes in the emission/excitation and XPS spectra of Agat[Au 3Pz 3]/ silica hex revealed that Ag + ions permeated into the congested nanochannels of [Au 3Pz 3]/silica hex, which were filled with the cylindrical assembly of [Au 3Pz 3].

本文言語English
ページ(範囲)2068-2072
ページ数5
ジャーナルChemistry - An Asian Journal
7
9
DOI
出版ステータスPublished - 2012 9

ASJC Scopus subject areas

  • 生化学
  • 有機化学

フィンガープリント

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