| DOI | Resolve DOI: https://doi.org/10.1063/1.2217746 |
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| Author | Search for: Casado, Juan1; Search for: Zgierski, Marek Z.1; Search for: Fuhrmann, Gerda; Search for: Bauerle, Peter; Search for: Navarrete, Juan T. Lopez |
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| Affiliation | - National Research Council of Canada. NRC Steacie Institute for Molecular Sciences
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| Format | Text, Article |
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| Subject | density functional theory; nanostructured materials; organic compounds; oxidation; platinum; Raman spectra |
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| Abstract | This paper reports on a combined spectroscopic and density functional theory study on a series of cyclo(diacetylenes-oligothiophenes) with different shapes and dimensions. The case of a macrocycle fragmented by the insertion of Pt metallic atoms is illustrated as well. The analysis covers the neutral and oxidized samples. A full assignment of the spectra has been proposed, supported by BP86/cc-pVDZ theoretical calculations. Ring shape and molecular dimension have been related with the C[Double Bond]C/C�C structural parameters and Raman wave numbers. Platinum atom insertion within the acetylene spacer seems to soften ring strain owing to the rupture of the strained circular shape. Oxidation causes an overall downshift of the Raman wave numbers likely due to the skeletal relaxation of CC conjugated path, while the ring shape of each macrocycle is conserved upon oxidation. |
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| Publication date | 2006-07-28 |
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| In | |
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| Language | English |
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| Peer reviewed | Yes |
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| NPARC number | 12337919 |
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| Export citation | Export as RIS |
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| Report a correction | Report a correction (opens in a new tab) |
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| Record identifier | 84b619cc-8501-4916-a7b1-6beec19cdc8a |
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| Record created | 2009-09-10 |
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| Record modified | 2020-04-22 |
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