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Electronic spectrum of the protonated diacetylene cation (H2C4H+).
- Source :
-
Journal of Chemical Physics . 2017, Vol. 147 Issue 8, p1-5. 5p. 2 Diagrams, 2 Charts, 2 Graphs. - Publication Year :
- 2017
-
Abstract
- The ˜B1A1 ← ˜X1A1 electronic band system of the protonated diacetylene cation (H2C4H+) is measured over the 230-295 nm range by photodissociating H2C4H+ ions stored in a cryogenic ion trap and by photodissociating H2C4H+ tagged with Ar and N2 in a tandem mass spectrometer. The ˜B1A1 ← ˜X1A1 band system has an origin at 34 941 cm-1 for H2C4H+, 34 934 cm-1 for H2C4H+-Ar, and 34 920 cm-1 for H2C4H+-N2. The spectra of H2C4H+, H2C4H+-Ar, and H2C4H+-N2 display similar vibronic structure, which is assigned using ab initio calculations to progressions in two symmetric a1 C-C stretch vibrational modes (ν6 and ν4), with band spacings of 860 and 1481 cm-1, respectively. [ABSTRACT FROM AUTHOR]
Details
- Language :
- English
- ISSN :
- 00219606
- Volume :
- 147
- Issue :
- 8
- Database :
- Academic Search Index
- Journal :
- Journal of Chemical Physics
- Publication Type :
- Academic Journal
- Accession number :
- 124929529
- Full Text :
- https://doi.org/10.1063/1.4990572