A cavitand functionalized with four alkylthioether groups at the lower rim, and four tolylpyridine groups on the upper rim is able to bind to a gold surface by its thioether groups, and forms a coordination cage with [Pd(dppp)(CF3SO3)2] by its pyridine groups. The cavitand or the cage complex can be inserted from solution into a self-assembled monolayer (SAM) of 11- mercaptoundecanol on gold. The inserted molecules can be individually detected as they protrude from the SAM by atomic force microscopy (AFM). The cages can be reversibly assembled and disassembled on the gold surface. AFM can distinguish between single cavitand and cage molecules of 2.5 nm and 5.8 nm height, respectively.
Surface-Confined Single Molecules: Assembly and Disassembly of Nanosize Coordination Cages on Gold (111) / Menozzi, Edoardo; Pinalli, Roberta; E. A., Speets; B. J., Ravoo; Dalcanale, Enrico; D. N., Reinhoudt. - In: CHEMISTRY-A EUROPEAN JOURNAL. - ISSN 0947-6539. - 10:(2004), pp. 2199-2206. [10.1002/chem.200305570]
Surface-Confined Single Molecules: Assembly and Disassembly of Nanosize Coordination Cages on Gold (111)
MENOZZI, Edoardo;PINALLI, Roberta;DALCANALE, Enrico;
2004-01-01
Abstract
A cavitand functionalized with four alkylthioether groups at the lower rim, and four tolylpyridine groups on the upper rim is able to bind to a gold surface by its thioether groups, and forms a coordination cage with [Pd(dppp)(CF3SO3)2] by its pyridine groups. The cavitand or the cage complex can be inserted from solution into a self-assembled monolayer (SAM) of 11- mercaptoundecanol on gold. The inserted molecules can be individually detected as they protrude from the SAM by atomic force microscopy (AFM). The cages can be reversibly assembled and disassembled on the gold surface. AFM can distinguish between single cavitand and cage molecules of 2.5 nm and 5.8 nm height, respectively.File | Dimensione | Formato | |
---|---|---|---|
CEJ 2004.pdf
non disponibili
Tipologia:
Documento in Post-print
Licenza:
Creative commons
Dimensione
324.16 kB
Formato
Adobe PDF
|
324.16 kB | Adobe PDF | Visualizza/Apri Richiedi una copia |
I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.