Reversible Photoisomerization of Spiropyran on the Surfaces of Au25 Nanoclusters

T. Udayabhaskararao, Pintu K. Kundu, Johannes Ahrens, Rafal Klajn

Research output: Contribution to journal › Article

6 Citations (Scopus)

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 languageEnglish
Pages (from-to)1805-1809
Number of pages5
JournalChemPhysChem
DOIs
Publication statusPublished - Jun 17 2016

Fingerprint

Photoisomerization
Nanoclusters
nanoclusters
Self assembly
Nuclear magnetic resonance spectroscopy
Mass spectrometry
self assembly
mass spectroscopy
switches
Fluorescence
Switches
Modulation
Ligands
modulation
fluorescence
nuclear magnetic resonance
ligands
Molecules
spiropyran
spectroscopy

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

Udayabhaskararao, T, Kundu, PK, Ahrens, J & Klajn, R 2016, 'Reversible Photoisomerization of Spiropyran on the Surfaces of Au25 Nanoclusters', ChemPhysChem, pp. 1805-1809. https://doi.org/10.1002/cphc.201500897
Udayabhaskararao T, Kundu PK, Ahrens J, Klajn R. Reversible Photoisomerization of Spiropyran on the Surfaces of Au25 Nanoclusters. ChemPhysChem. 2016 Jun 17;1805-1809. https://doi.org/10.1002/cphc.201500897
Udayabhaskararao, T. ; Kundu, Pintu K. ; Ahrens, Johannes ; Klajn, Rafal. / Reversible Photoisomerization of Spiropyran on the Surfaces of Au25 Nanoclusters. In: ChemPhysChem. 2016 ; pp. 1805-1809.
@article{97eb6c8070074222826875cdb9c761a7,
title = "Reversible Photoisomerization of Spiropyran on the Surfaces of Au25 Nanoclusters",
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.",
keywords = "molecular switches, nanoclusters, photochromism, self-assembly, spiropyran",
author = "T. Udayabhaskararao and Kundu, {Pintu K.} and Johannes Ahrens and Rafal Klajn",
year = "2016",
month = "6",
day = "17",
doi = "10.1002/cphc.201500897",
language = "English",
pages = "1805--1809",
journal = "ChemPhysChem",
issn = "1439-4235",
publisher = "Wiley-VCH Verlag",

}

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

SP - 1805

EP - 1809

JO - ChemPhysChem

JF - ChemPhysChem

SN - 1439-4235

ER -

Access to Document