DOI: 10.1063/1.1313527. Triplet states in a series of Pt-containing ethynylenes

Triplet states in a series of Pt-containing ethynylenes

10.1063/1.1313527

Crossref journal-article

AIP Publishing

The Journal of Chemical Physics (317)

Abstract

By use of optical steady state and time resolved spectroscopy, we studied the evolution of the triplet excited state in a series of six ethynylenic polymers of the structure [-Pt(PBu3n)2-C≡C-R-C≡C-]n where the spacer unit R is systematically varied to give optical gaps from 1.7–3.0 eV. The inclusion of platinum in the polymer backbone induces a strong spin-orbit coupling such that triplet state emission (phosphorescence) associated with the conjugated system can be detected. Throughout the series we find the S1-T1 (singlet-triplet) energy splitting to be independent of the spacer R, such that the T1 state is always 0.7±0.1 eV below the S1 state. With decreasing optical gap, the intensity and lifetime of the triplet state emission were seen to reduce in accordance with the energy gap law.

Bibliography

Wilson, J. S., KÃ¶hler, A., Friend, R. H., Al-Suti, M. K., Al-Mandhary, M. R. A., Khan, M. S., & Raithby, P. R. (2000). Triplet states in a series of Pt-containing ethynylenes. The Journal of Chemical Physics, 113(17), 7627â7634.

Authors 7

J. S. Wilson (first)
A. Köhler (additional)
R. H. Friend (additional)
M. K. Al-Suti (additional)
M. R. A. Al-Mandhary (additional)
M. S. Khan (additional)
P. R. Raithby (additional)

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Dates

Type	When
Created	23 years, 1 month ago (July 26, 2002, 8:41 a.m.)
Deposited	1 year, 6 months ago (Feb. 10, 2024, 4:59 p.m.)
Indexed	1 year, 4 months ago (April 9, 2024, 7:29 p.m.)
Issued	24 years, 10 months ago (Nov. 1, 2000)
Published	24 years, 10 months ago (Nov. 1, 2000)
Published Print	24 years, 10 months ago (Nov. 1, 2000)

Funders 0

None

BibTeX

@article{Wilson_2000, title={Triplet states in a series of Pt-containing ethynylenes}, volume={113}, ISSN={1089-7690}, url={http://dx.doi.org/10.1063/1.1313527}, DOI={10.1063/1.1313527}, number={17}, journal={The Journal of Chemical Physics}, publisher={AIP Publishing}, author={Wilson, J. S. and Köhler, A. and Friend, R. H. and Al-Suti, M. K. and Al-Mandhary, M. R. A. and Khan, M. S. and Raithby, P. R.}, year={2000}, month=nov, pages={7627–7634} }

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