Abstract
Confining organic molecules to the surfaces of inorganic nanoparticles can induce intermolecular interactions between them, which can affect the composition of the mixed self-assembled monolayers obtained by co-adsorption from solution of two different molecules. Two thiolated ligands (a dialkylviologen and a zwitterionic sulfobetaine) that can interact with each other electrostatically were coadsorbed onto gold nanoparticles. The nanoparticles favor a narrow range of ratios of these two molecules that is largely independent of the molar ratio in solution. Changing the solution molar ratio of the two ligands by a factor of 5 000 affects the on-nanoparticle ratio of these ligands by only threefold. This behavior is reminiscent of the formation of insoluble inorganic salts (such as AgCl), which similarly compensate positive and negative charges upon crystallizing. Our results pave the way towards developing well-defined hybrid organic–inorganic nanostructures.
| Original language | English |
|---|---|
| Pages (from-to) | 7023-7027 |
| Number of pages | 5 |
| Journal | Angewandte Chemie - International Edition |
| Volume | 57 |
| Issue number | 24 |
| DOIs | |
| Publication status | Published - Jun 11 2018 |
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Keywords
- ligand exchange
- nanoparticles
- self-assembly
- supramolecular chemistry
- surface chemistry
ASJC Scopus subject areas
- Catalysis
- Chemistry(all)
Cite this
“Precipitation on Nanoparticles” : Attractive Intermolecular Interactions Stabilize Specific Ligand Ratios on the Surfaces of Nanoparticles. / Chu, Zonglin; Han, Yanxiao; Král, Petr; Klajn, Rafal.
In: Angewandte Chemie - International Edition, Vol. 57, No. 24, 11.06.2018, p. 7023-7027.Research output: Contribution to journal › Article
}
TY - JOUR
T1 - “Precipitation on Nanoparticles”
T2 - Attractive Intermolecular Interactions Stabilize Specific Ligand Ratios on the Surfaces of Nanoparticles
AU - Chu, Zonglin
AU - Han, Yanxiao
AU - Král, Petr
AU - Klajn, Rafal
PY - 2018/6/11
Y1 - 2018/6/11
N2 - Confining organic molecules to the surfaces of inorganic nanoparticles can induce intermolecular interactions between them, which can affect the composition of the mixed self-assembled monolayers obtained by co-adsorption from solution of two different molecules. Two thiolated ligands (a dialkylviologen and a zwitterionic sulfobetaine) that can interact with each other electrostatically were coadsorbed onto gold nanoparticles. The nanoparticles favor a narrow range of ratios of these two molecules that is largely independent of the molar ratio in solution. Changing the solution molar ratio of the two ligands by a factor of 5 000 affects the on-nanoparticle ratio of these ligands by only threefold. This behavior is reminiscent of the formation of insoluble inorganic salts (such as AgCl), which similarly compensate positive and negative charges upon crystallizing. Our results pave the way towards developing well-defined hybrid organic–inorganic nanostructures.
AB - Confining organic molecules to the surfaces of inorganic nanoparticles can induce intermolecular interactions between them, which can affect the composition of the mixed self-assembled monolayers obtained by co-adsorption from solution of two different molecules. Two thiolated ligands (a dialkylviologen and a zwitterionic sulfobetaine) that can interact with each other electrostatically were coadsorbed onto gold nanoparticles. The nanoparticles favor a narrow range of ratios of these two molecules that is largely independent of the molar ratio in solution. Changing the solution molar ratio of the two ligands by a factor of 5 000 affects the on-nanoparticle ratio of these ligands by only threefold. This behavior is reminiscent of the formation of insoluble inorganic salts (such as AgCl), which similarly compensate positive and negative charges upon crystallizing. Our results pave the way towards developing well-defined hybrid organic–inorganic nanostructures.
KW - ligand exchange
KW - nanoparticles
KW - self-assembly
KW - supramolecular chemistry
KW - surface chemistry
UR - http://www.scopus.com/inward/record.url?scp=85048327712&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=85048327712&partnerID=8YFLogxK
U2 - 10.1002/anie.201800673
DO - 10.1002/anie.201800673
M3 - Article
AN - SCOPUS:85048327712
VL - 57
SP - 7023
EP - 7027
JO - Angewandte Chemie - International Edition
JF - Angewandte Chemie - International Edition
SN - 1433-7851
IS - 24
ER -