Benutzer: Gast  Login
Autor(en):
Farrag, Mostafa; Thaemer, Martin; Tschurl, Martin; Buergi, Thomas; Heiz, Ueli 
Titel:
Preparation and Spectroscopic Properties of Monolayer-Protected Silver Nanoclusters 
Abstract:
Ag nanoclusters protected by 2-phenylethanethiol (1), 4-fluorothiophenol (2), and l-glutathione (3) ligands were successfully synthesized. The optical properties of the prepd. Ag nanoclusters were studied. The absorption signal of Ag@SCH2CH2Ph in toluene can be found at 469 nm, and Ag@SPhF in THF shows 2 absorption bands at 395 and 462 nm. Ag@SG in H2O absorbs at 478 nm. Mie theory in combination with the Drude model clearly indicates the peaks in the spectra originate from plasmonic transitions...    »
 
Stichworte:
Aging Plasmon (in spectroscopic properties of monolayer-protected silver nanoclusters) IR spectra (mid-IR prepn. and spectroscopic properties of monolayer-protected silver nanoclusters) Clusters Nanoparticles (nanoclusters prepn. and spectroscopic properties of monolayer-protected silver nanoclusters) Particle size (nanoscale prepn. and spectroscopic properties of monolayer-protected silver nanoclusters) Adsorbed monolayers Chemisorbed substances Circular dichroism Particle size distribution The...    »
 
Kongresstitel:
CAN 156:462838 Optical, Electron, and Mass Spectroscopy and Other Related Properties 70-18-8 (γ-L-Glutamyl-L-cysteinylglycine); 371-42-6 (4-Fluorothiophenol); 4410-99-5 (2-Phenylethanethiol); 7761-88-8 (Silver nitrate) Role: RCT (Reactant), RACT (Reactant or reagent) (in prepn. and spectroscopic properties of monolayer-protected silver nanoclusters); 16940-66-2 (Sodium borohydride) Role: RGT (Reagent), RACT (Reactant or reagent) (in prepn. and spectroscopic properties of monolayer-protected...    »
 
Zeitschriftentitel:
J. Phys. Chem. C 
Jahr:
2012 
Band / Volume:
116 
Heft / Issue:
14 
Seitenangaben Beitrag:
8034-8043