Lintang, Hendrik Oktendy and Kinbara, Kazushi and Yamashita, Takashi and Aida, Takuzo (2012) Metal-ion permeation in congested nanochannels: the exposure effect of Ag plus 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 ([Au3Pz3]) that was confined inside the nanoscopic channels of hexagonal mesoporous silica ([Au3Pz3]/silicahex), emitted red light with a luminescence center at 693 nm upon photoexcitation at 276 nm owing to a AuI?AuI metallophilic interaction. When a film of [Au3Pz3]/silicahex was dipped into a solution of Ag+ in tetrahydrofuran (THF), the resulting nanocomposite material (Ag@[Au3Pz3]/silicahex) emitted green light with a new luminescence center at 486 nm, which was characteristic of a AuI?AgI heterometallic interaction. Changes in the emission/excitation and XPS spectra of Ag@[Au3Pz3]/silicahex revealed that Ag+ ions permeated into the congested nanochannels of [Au3Pz3]/silicahex, which were filled with the cylindrical assembly of [Au3Pz3].
| Item Type: | Article |
|---|---|
| Uncontrolled Keywords: | silicates, silver |
| Subjects: | Q Science > Q Science (General) |
| Divisions: | Science |
| ID Code: | 32913 |
| Deposited By: | Fazli Masari |
| Deposited On: | 31 Jul 2013 00:25 |
| Last Modified: | 30 Nov 2018 06:41 |
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