Vibrational spectra of cyclic C6 in solid argon
| Autor: | José Domingo Presilla-Márquez, J. D. Mills, J. A. Sheehy, Patrick G. Carrick, C. W. Larson |
|---|---|
| Rok vydání: | 1997 |
| Předmět: |
Argon
Analytical chemistry General Physics and Astronomy chemistry.chemical_element Substrate (electronics) Matrix (chemical analysis) symbols.namesake Fourier transform chemistry Ab initio quantum chemistry methods symbols Physical and Theoretical Chemistry Fourier transform infrared spectroscopy Carbon Vibrational spectra |
| Zdroj: | Chemical Physics Letters. 274:439-444 |
| ISSN: | 0009-2614 |
| DOI: | 10.1016/s0009-2614(97)00700-8 |
| Popis: | Vapors from solid and powdered carbon emitted from an oven cycled between 2000 and 3000 K were co-condensed with argon onto a CsI substrate maintained at 10 K. The cycling process produced a matrix “sandwich” with regions of high carbon density alternating with layers of argon. FTIR measurements including extensive 13 C isotopic data, supported by ab initio calculations, allow the assignment of a band at 1694.7 cm −1 to the ν 4 (e′) fundamental of cyclic C 6 . This represents the first conclusive identification of a small cyclic neutral polycarbon. Additionally, a vibration previously observed at 1710.3 cm −1 has been confirmed as the ν 9 ( σ u ) mode of linear C 8 . |
| Databáze: | OpenAIRE |
| Externí odkaz: |
|
Full Text from ScienceDirect