Lintang, H. O. and Kinbara, K. and Yamashita, T. and Aida, T. (2012) 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. Chemistry - An Asian Journal, 7 (9). pp. 2068-2072. ISSN 1861-4728
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Official URL: http://dx.doi.org/10.1002/asia.201200041
Abstract
An organometallic/silica nanocomposite of a 1D cylindrical assembly of a trinuclear gold(I)-pyrazolate complex ([Au(3)Pz(3)]) that was confined inside the nanoscopic channels of hexagonal mesoporous silica ([Au(3)Pz(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(3)Pz(3)]/silica(hex) was dipped into a solution of Ag(+) in tetrahydrofuran (THF), the resulting nanocomposite material (Ag@[Au(3)Pz(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 Ag@[Au(3)Pz(3)]/silica(hex) revealed that Ag(+) ions permeated into the congested nanochannels of [Au(3)Pz(3)]/silica(hex), which were filled with the cylindrical assembly of [Au(3)Pz(3)].
| Item Type: | Article |
|---|---|
| Uncontrolled Keywords: | organometallic, heterometallic interaction, silica nanocomposite |
| Subjects: | Q Science > QD Chemistry |
| Divisions: | Others |
| ID Code: | 47205 |
| Deposited By: | Narimah Nawil |
| Deposited On: | 22 Jun 2015 05:56 |
| Last Modified: | 31 Mar 2019 08:38 |
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