Donor-acceptor interactions in organometallic and organic poly-ynes

A. Köhler; M. Younus; M. R.A. Al-Mandhary; P. R. Raithby; M. S. Khan; R. H. Friend

doi:10.1016/S0379-6779(98)01360-5

Donor-acceptor interactions in organometallic and organic poly-ynes

A. Köhler^*, M. Younus, M. R.A. Al-Mandhary, P. R. Raithby, M. S. Khan, R. H. Friend

^*Corresponding author for this work

Chemistry

Research output: Contribution to journal › Conference article › peer-review

21 Citations (Scopus)

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	https://doi.org/10.1016/S0379-6779(98)01360-5
Publication status	Published - May 1999
Event	Proceedings of the 1998 International Conference on Science and Technology of Synthetic Metals (ICSM-98) - Montpellier Duration: Jul 12 1998 → Jul 18 1998

ASJC Scopus subject areas

Electronic, Optical and Magnetic Materials
Condensed Matter Physics
Mechanics of Materials
Mechanical Engineering
Metals and Alloys
Materials Chemistry

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title = "Donor-acceptor interactions in organometallic and organic poly-ynes",

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.",

author = "A. K{\"o}hler and M. Younus and Al-Mandhary, {M. R.A.} and Raithby, {P. R.} and Khan, {M. S.} and Friend, {R. H.}",

note = "Funding Information: Acknowledgements:W e thank N. and the EPSRC for financial support.; Proceedings of the 1998 International Conference on Science and Technology of Synthetic Metals (ICSM-98) ; Conference date: 12-07-1998 Through 18-07-1998",

year = "1999",

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doi = "10.1016/S0379-6779(98)01360-5",

language = "English",

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journal = "Synthetic Metals",

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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.

N1 - Funding Information: Acknowledgements:W e thank N. and the EPSRC for financial support.

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.

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DO - 10.1016/S0379-6779(98)01360-5

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SN - 0379-6779

VL - 101

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EP - 247

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JF - Synthetic Metals

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T2 - Proceedings of the 1998 International Conference on Science and Technology of Synthetic Metals (ICSM-98)

Y2 - 12 July 1998 through 18 July 1998

ER -

Donor-acceptor interactions in organometallic and organic poly-ynes

Abstract

ASJC Scopus subject areas

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