Abstract
A thioxanthone derivative containing a covalently attached 15N-labeled nitroxide was incarcerated into an octaacid nanocapsule. Photoexcitation of the thioxanthone chromophore generated electron spin polarization of the nitroxide. This spin polarization of the 15N-labeled nitroxide was transferred through the walls of the carcerand to a 14N-labeled nitroxide in external bulk solvent, a process that was directly observed by time-resolved EPR spectroscopy. The efficiency of the communication between the incarcerated guest and molecules in the bulk solvent was shown to be controlled by supramolecular factors such as Coulombic attraction and repulsion between the guest@host complex and charged molecules in the bulk solvent phase.
| Original language | English |
|---|---|
| Pages (from-to) | 2628-2632 |
| Number of pages | 5 |
| Journal | Journal of Physical Chemistry Letters |
| Volume | 1 |
| Issue number | 18 |
| DOIs | |
| State | Published - Sep 16 2010 |
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ASJC Scopus subject areas
- Materials Science(all)
Cite this
Electron spin polarization transfer from a nitroxide incarcerated within a nanocapsule to a nitroxide in the bulk aqueous solution. / Jockusch, Steffen; Zeika, Olaf; Jayaraj, Nithyanandhan; Ramamurthy, Vaidhyanathan; Turro, Nicholas J.
In: Journal of Physical Chemistry Letters, Vol. 1, No. 18, 16.09.2010, p. 2628-2632.Research output: Contribution to journal › Article
}
TY - JOUR
T1 - Electron spin polarization transfer from a nitroxide incarcerated within a nanocapsule to a nitroxide in the bulk aqueous solution
AU - Jockusch, Steffen
AU - Zeika, Olaf
AU - Jayaraj, Nithyanandhan
AU - Ramamurthy, Vaidhyanathan
AU - Turro, Nicholas J.
PY - 2010/9/16
Y1 - 2010/9/16
N2 - A thioxanthone derivative containing a covalently attached 15N-labeled nitroxide was incarcerated into an octaacid nanocapsule. Photoexcitation of the thioxanthone chromophore generated electron spin polarization of the nitroxide. This spin polarization of the 15N-labeled nitroxide was transferred through the walls of the carcerand to a 14N-labeled nitroxide in external bulk solvent, a process that was directly observed by time-resolved EPR spectroscopy. The efficiency of the communication between the incarcerated guest and molecules in the bulk solvent was shown to be controlled by supramolecular factors such as Coulombic attraction and repulsion between the guest@host complex and charged molecules in the bulk solvent phase.
AB - A thioxanthone derivative containing a covalently attached 15N-labeled nitroxide was incarcerated into an octaacid nanocapsule. Photoexcitation of the thioxanthone chromophore generated electron spin polarization of the nitroxide. This spin polarization of the 15N-labeled nitroxide was transferred through the walls of the carcerand to a 14N-labeled nitroxide in external bulk solvent, a process that was directly observed by time-resolved EPR spectroscopy. The efficiency of the communication between the incarcerated guest and molecules in the bulk solvent was shown to be controlled by supramolecular factors such as Coulombic attraction and repulsion between the guest@host complex and charged molecules in the bulk solvent phase.
UR - http://www.scopus.com/inward/record.url?scp=77956830864&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=77956830864&partnerID=8YFLogxK
U2 - 10.1021/jz101006s
DO - 10.1021/jz101006s
M3 - Article
AN - SCOPUS:77956830864
VL - 1
SP - 2628
EP - 2632
JO - Journal of Physical Chemistry Letters
JF - Journal of Physical Chemistry Letters
SN - 1948-7185
IS - 18
ER -