Abstract
Three different cruciforms containing the 1,4-bis-4′-pyridylethynyl-2,5-distyrylbenzene or the 1,4-bis-phenylethynyl-2,5-distyrylbenzene unit were synthesized and investigated with respect to their metal sensing properties. Upon addition of metal cations to these cruciforms, either a bathochromic or hypsochromic shift in emission and absorption is observed. The shift depends on whether the metal coordinates preferentially to the pyridine or to the dibutylaniline branches of the cruciforms. The three cruciforms were exposed to a selection of metal cations in dichloromethane, and their emission was examined. The cruciforms show differential sensing of metal cations, that is, different metals can be specifically discerned upon exposure to three cruciforms but not when exposed to only one. The system can discern calcium from magnesium cations and silver from mercury or lithium cations.
| Original language | English |
|---|---|
| Pages (from-to) | 4124-4125 |
| Number of pages | 2 |
| Journal | Journal of the American Chemical Society |
| Volume | 127 |
| Issue number | 12 |
| DOIs | |
| State | Published - Mar 30 2005 |
| Externally published | Yes |
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ASJC Scopus subject areas
- Chemistry(all)
Cite this
Switching of intramolecular charge transfer in cruciforms : Metal ion sensing. / Wilson, James N; Bunz, Uwe H F.
In: Journal of the American Chemical Society, Vol. 127, No. 12, 30.03.2005, p. 4124-4125.Research output: Contribution to journal › Article
}
TY - JOUR
T1 - Switching of intramolecular charge transfer in cruciforms
T2 - Metal ion sensing
AU - Wilson, James N
AU - Bunz, Uwe H F
PY - 2005/3/30
Y1 - 2005/3/30
N2 - Three different cruciforms containing the 1,4-bis-4′-pyridylethynyl-2,5-distyrylbenzene or the 1,4-bis-phenylethynyl-2,5-distyrylbenzene unit were synthesized and investigated with respect to their metal sensing properties. Upon addition of metal cations to these cruciforms, either a bathochromic or hypsochromic shift in emission and absorption is observed. The shift depends on whether the metal coordinates preferentially to the pyridine or to the dibutylaniline branches of the cruciforms. The three cruciforms were exposed to a selection of metal cations in dichloromethane, and their emission was examined. The cruciforms show differential sensing of metal cations, that is, different metals can be specifically discerned upon exposure to three cruciforms but not when exposed to only one. The system can discern calcium from magnesium cations and silver from mercury or lithium cations.
AB - Three different cruciforms containing the 1,4-bis-4′-pyridylethynyl-2,5-distyrylbenzene or the 1,4-bis-phenylethynyl-2,5-distyrylbenzene unit were synthesized and investigated with respect to their metal sensing properties. Upon addition of metal cations to these cruciforms, either a bathochromic or hypsochromic shift in emission and absorption is observed. The shift depends on whether the metal coordinates preferentially to the pyridine or to the dibutylaniline branches of the cruciforms. The three cruciforms were exposed to a selection of metal cations in dichloromethane, and their emission was examined. The cruciforms show differential sensing of metal cations, that is, different metals can be specifically discerned upon exposure to three cruciforms but not when exposed to only one. The system can discern calcium from magnesium cations and silver from mercury or lithium cations.
UR - http://www.scopus.com/inward/record.url?scp=16244422968&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=16244422968&partnerID=8YFLogxK
U2 - 10.1021/ja050017n
DO - 10.1021/ja050017n
M3 - Article
C2 - 15783166
AN - SCOPUS:16244422968
VL - 127
SP - 4124
EP - 4125
JO - Journal of the American Chemical Society
JF - Journal of the American Chemical Society
SN - 0002-7863
IS - 12
ER -