Abstract
The fluorescence excimer emission of 1 is found to be enhanced upon the addition of K+ ion which is due to a conformational change of the ligand to have a more efficient -* interaction of two pyrenes. By contrast, no fluorescence change of 1 was observed in the anion binding test with F-, Cl-, Br-, I-, [image omitted], [image omitted], and [image omitted] as their tetrabutylammonium salts in MeCN. Interestingly, it was observed that the excimer emission of the two pyrenes decreases upon the addition of [image omitted] or [image omitted] in the 1K+ complex solution. This is presumably due to a conformational change of the ligand by K+ ion binding, which induces the better conformation of two facing pyrene amides to selectively adopt [image omitted] or [image omitted] ion. This allosterical anion complexation could be applicable for NOR and INHIBIT (INH) logic gates.
| Original language | English |
|---|---|
| Pages (from-to) | 283-286 |
| Number of pages | 4 |
| Journal | Supramolecular Chemistry |
| Volume | 19 |
| Issue number | 4-5 |
| DOIs | |
| Publication status | Published - 2007 Jun 1 |
| Externally published | Yes |
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Keywords
- Calixarene
- Fluorescence
- Logic gate
- Metal ion complexation
ASJC Scopus subject areas
- Chemistry(all)
Cite this
Fluorescent change of pyreneamide bearing calix[4]crown-5 : INHIBIT logic gate in K+-induced H2PO4 - complexation. / Choi, Jung Kyu; No, Kwanghyun; Lee, Eil Hee; Kwon, Seon Gil; Kim, Kwang Wook; Kim, Jong Seung.
In: Supramolecular Chemistry, Vol. 19, No. 4-5, 01.06.2007, p. 283-286.Research output: Contribution to journal › Article
}
TY - JOUR
T1 - Fluorescent change of pyreneamide bearing calix[4]crown-5
T2 - INHIBIT logic gate in K+-induced H2PO4 - complexation
AU - Choi, Jung Kyu
AU - No, Kwanghyun
AU - Lee, Eil Hee
AU - Kwon, Seon Gil
AU - Kim, Kwang Wook
AU - Kim, Jong Seung
PY - 2007/6/1
Y1 - 2007/6/1
N2 - The fluorescence excimer emission of 1 is found to be enhanced upon the addition of K+ ion which is due to a conformational change of the ligand to have a more efficient -* interaction of two pyrenes. By contrast, no fluorescence change of 1 was observed in the anion binding test with F-, Cl-, Br-, I-, [image omitted], [image omitted], and [image omitted] as their tetrabutylammonium salts in MeCN. Interestingly, it was observed that the excimer emission of the two pyrenes decreases upon the addition of [image omitted] or [image omitted] in the 1K+ complex solution. This is presumably due to a conformational change of the ligand by K+ ion binding, which induces the better conformation of two facing pyrene amides to selectively adopt [image omitted] or [image omitted] ion. This allosterical anion complexation could be applicable for NOR and INHIBIT (INH) logic gates.
AB - The fluorescence excimer emission of 1 is found to be enhanced upon the addition of K+ ion which is due to a conformational change of the ligand to have a more efficient -* interaction of two pyrenes. By contrast, no fluorescence change of 1 was observed in the anion binding test with F-, Cl-, Br-, I-, [image omitted], [image omitted], and [image omitted] as their tetrabutylammonium salts in MeCN. Interestingly, it was observed that the excimer emission of the two pyrenes decreases upon the addition of [image omitted] or [image omitted] in the 1K+ complex solution. This is presumably due to a conformational change of the ligand by K+ ion binding, which induces the better conformation of two facing pyrene amides to selectively adopt [image omitted] or [image omitted] ion. This allosterical anion complexation could be applicable for NOR and INHIBIT (INH) logic gates.
KW - Calixarene
KW - Fluorescence
KW - Logic gate
KW - Metal ion complexation
UR - http://www.scopus.com/inward/record.url?scp=34547931060&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=34547931060&partnerID=8YFLogxK
U2 - 10.1080/10610270701258386
DO - 10.1080/10610270701258386
M3 - Article
AN - SCOPUS:34547931060
VL - 19
SP - 283
EP - 286
JO - Supramolecular Chemistry
JF - Supramolecular Chemistry
SN - 1061-0278
IS - 4-5
ER -