Abstract
The donor-acceptor interactions in organic polyene were investigated using the spacers between the acetylenic units as acceptors and an electron-rich transition metal platinum or an alkoxy-substituted phenyl ring as donors. The fluorine-substituted phenyl ring was too weak an acceptor to cause a donor-acceptor interaction with the platinum ion. The donor-acceptor interaction present in the thieno-pyrazine unit was enhanced by the electron system in the polymer backbone which caused a charge-transfer transition which lowers the optical gap from 3.0 eV to 1.7 eV. The decoupling between the first and second excited state was strong enough to allow emission from the second excited state.
| Original language | English |
|---|---|
| Pages (from-to) | 246-247 |
| Number of pages | 2 |
| Journal | Synthetic Metals |
| Volume | 101 |
| Issue number | 1 |
| DOIs | |
| Publication status | Published - May 1999 |
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ASJC Scopus subject areas
- Electronic, Optical and Magnetic Materials
- Materials Chemistry
- Polymers and Plastics
Cite this
Donor-acceptor interactions in organometallic and organic poly-ynes. / Köhler, A.; Younus, M.; Al-Mandhary, M. R A; Raithby, P. R.; Khan, M. S.; Friend, R. H.
In: Synthetic Metals, Vol. 101, No. 1, 05.1999, p. 246-247.Research output: Contribution to journal › Article
}
TY - JOUR
T1 - Donor-acceptor interactions in organometallic and organic poly-ynes
AU - Köhler, A.
AU - Younus, M.
AU - Al-Mandhary, M. R A
AU - Raithby, P. R.
AU - Khan, M. S.
AU - Friend, R. H.
PY - 1999/5
Y1 - 1999/5
N2 - The donor-acceptor interactions in organic polyene were investigated using the spacers between the acetylenic units as acceptors and an electron-rich transition metal platinum or an alkoxy-substituted phenyl ring as donors. The fluorine-substituted phenyl ring was too weak an acceptor to cause a donor-acceptor interaction with the platinum ion. The donor-acceptor interaction present in the thieno-pyrazine unit was enhanced by the electron system in the polymer backbone which caused a charge-transfer transition which lowers the optical gap from 3.0 eV to 1.7 eV. The decoupling between the first and second excited state was strong enough to allow emission from the second excited state.
AB - The donor-acceptor interactions in organic polyene were investigated using the spacers between the acetylenic units as acceptors and an electron-rich transition metal platinum or an alkoxy-substituted phenyl ring as donors. The fluorine-substituted phenyl ring was too weak an acceptor to cause a donor-acceptor interaction with the platinum ion. The donor-acceptor interaction present in the thieno-pyrazine unit was enhanced by the electron system in the polymer backbone which caused a charge-transfer transition which lowers the optical gap from 3.0 eV to 1.7 eV. The decoupling between the first and second excited state was strong enough to allow emission from the second excited state.
UR - http://www.scopus.com/inward/record.url?scp=0141746657&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=0141746657&partnerID=8YFLogxK
U2 - 10.1016/S0379-6779(98)01360-5
DO - 10.1016/S0379-6779(98)01360-5
M3 - Article
VL - 101
SP - 246
EP - 247
JO - Synthetic Metals
JF - Synthetic Metals
SN - 0379-6779
IS - 1
ER -