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Khan, Muhammad S. ; Al-Mandhary, Muna R. A. ; Al-Suti, Mohammed K. ; Feeder, Neil ; Nahar, Saifun ; Köhler, Anna ; Friend, Richard H. ; Wilson, Paul J. ; Raithby, Paul R.:
Synthesis, characterisation and electronic properties of a series of platinum(II) poly-ynes containing novel thienyl-pyridine linker groups.
In: Dalton Transactions.
(2002)
Heft 12
.
- S. 2441-2448.
ISSN 1477-9234
DOI: https://doi.org/10.1039/B201073A
Abstract
The synthesis and characterisation of a series of novel poly-yne polymers, trans-[–(PnBu3)2Pt(C[triple bond, length as m-dash]C–L–C[triple bond, length as m-dash]C)-]n (L = 2-(2′-thienyl)-pyridine (L1), 2,5-bis(2′-thienyl)pyridine (L2), 6,6′-bis(2″-thienyl)-3,3′-bipyridine (L3)), and the corresponding platinum dimers trans-[(PEt3)2(Ph)Pt(C[triple bond, length as m-dash]CLC[triple bond, length as m-dash]C)Pt(Ph)(PEt3)2] are described. The dimers were prepared by the reaction of two equivalents of trans-[Pt(PEt3)2(Ph)Cl] with one equivalent of the diterminal diyne HC[triple bond, length as m-dash]C–L–C[triple bond, length as m-dash]CH, in CuI catalysed dehydrohalogenation reactions in CH2Cl2–Pri2NH, while the polymers are obtained similarly from the diyne and one equivalent of trans-[Pt(PnBu3)2Cl2]. The optical absorption and photoluminescence spectra of the polymers with L1 and L2 linker groups are reported. The optical gaps are 465 nm (2.67 eV) and 486 nm (2.55 eV), respectively. The photoluminescence spectrum for each polymer exhibits one band at room temperature. At 10 K, low-energy emission bands emerge which are attributed to emission from the triplet excited state. The results of these studies are compared with those obtained for other platinum-containing poly-yne and related organometallic polymers.
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| Publikationsform: | Artikel in einer Zeitschrift |
|---|---|
| Begutachteter Beitrag: | Nein |
| Institutionen der Universität: | Fakultäten > Fakultät für Mathematik, Physik und Informatik > Physikalisches Institut > Lehrstuhl Experimentalphysik II - Optoelektronik weicher Materie > Lehrstuhl Experimentalphysik II - Optoelektronik weicher Materie - Univ.-Prof. Dr. Anna Köhler Fakultäten Fakultäten > Fakultät für Mathematik, Physik und Informatik Fakultäten > Fakultät für Mathematik, Physik und Informatik > Physikalisches Institut Fakultäten > Fakultät für Mathematik, Physik und Informatik > Physikalisches Institut > Lehrstuhl Experimentalphysik II - Optoelektronik weicher Materie |
| Titel an der UBT entstanden: | Nein |
| Themengebiete aus DDC: | 500 Naturwissenschaften und Mathematik > 530 Physik |
| Eingestellt am: | 18 Mär 2015 09:50 |
| Letzte Änderung: | 18 Mär 2015 09:50 |
| URI: | https://eref.uni-bayreuth.de/id/eprint/8475 |