Abstract
Au25 nanoclusters functionalized with a spiropyran molecular switch are synthesized via a ligand-exchange reaction at low temperature. The resulting nanoclusters are characterized by optical and NMR spectroscopies as well as by mass spectrometry. Spiropyran bound to nanoclusters isomerizes in a reversible fashion when exposed to UV and visible light, and its properties are similar to those of free spiropyran molecules in solution. The reversible photoisomerization entails the modulation of fluorescence as well as the light-controlled self-assembly of nanoclusters.
| Original language | English |
|---|---|
| Pages (from-to) | 1805-1809 |
| Number of pages | 5 |
| Journal | ChemPhysChem |
| DOIs | |
| Publication status | Published - Jun 17 2016 |
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Keywords
- molecular switches
- nanoclusters
- photochromism
- self-assembly
- spiropyran
ASJC Scopus subject areas
- Physical and Theoretical Chemistry
- Atomic and Molecular Physics, and Optics
Cite this
Reversible Photoisomerization of Spiropyran on the Surfaces of Au25 Nanoclusters. / Udayabhaskararao, T.; Kundu, Pintu K.; Ahrens, Johannes; Klajn, Rafal.
In: ChemPhysChem, 17.06.2016, p. 1805-1809.Research output: Contribution to journal › Article
}
TY - JOUR
T1 - Reversible Photoisomerization of Spiropyran on the Surfaces of Au25 Nanoclusters
AU - Udayabhaskararao, T.
AU - Kundu, Pintu K.
AU - Ahrens, Johannes
AU - Klajn, Rafal
PY - 2016/6/17
Y1 - 2016/6/17
N2 - Au25 nanoclusters functionalized with a spiropyran molecular switch are synthesized via a ligand-exchange reaction at low temperature. The resulting nanoclusters are characterized by optical and NMR spectroscopies as well as by mass spectrometry. Spiropyran bound to nanoclusters isomerizes in a reversible fashion when exposed to UV and visible light, and its properties are similar to those of free spiropyran molecules in solution. The reversible photoisomerization entails the modulation of fluorescence as well as the light-controlled self-assembly of nanoclusters.
AB - Au25 nanoclusters functionalized with a spiropyran molecular switch are synthesized via a ligand-exchange reaction at low temperature. The resulting nanoclusters are characterized by optical and NMR spectroscopies as well as by mass spectrometry. Spiropyran bound to nanoclusters isomerizes in a reversible fashion when exposed to UV and visible light, and its properties are similar to those of free spiropyran molecules in solution. The reversible photoisomerization entails the modulation of fluorescence as well as the light-controlled self-assembly of nanoclusters.
KW - molecular switches
KW - nanoclusters
KW - photochromism
KW - self-assembly
KW - spiropyran
UR - http://www.scopus.com/inward/record.url?scp=84976584806&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=84976584806&partnerID=8YFLogxK
U2 - 10.1002/cphc.201500897
DO - 10.1002/cphc.201500897
M3 - Article
C2 - 26593975
AN - SCOPUS:84976584806
SP - 1805
EP - 1809
JO - ChemPhysChem
JF - ChemPhysChem
SN - 1439-4235
ER -