Formation of octatetrayne (HC 8 H) from the reaction of butadiynyl (C 4 H) with butadiyne (HC 4 H)
| Autor: | Wen-Jian Huang, Shih-Huang Lee, Yi-Lun Sun |
|---|---|
| Rok vydání: | 2017 |
| Předmět: |
010304 chemical physics
Chemistry General Physics and Astronomy Photoionization 01 natural sciences C-4 Synchrotron Spectral line law.invention law Computational chemistry Ionization 0103 physical sciences Translational energy Physical chemistry Physical and Theoretical Chemistry 010303 astronomy & astrophysics |
| Zdroj: | Chemical Physics Letters. 690:147-152 |
| ISSN: | 0009-2614 |
| DOI: | 10.1016/j.cplett.2017.10.033 |
| Popis: | Reactants C4H and HC4H were synthesized from 1% C2H2/He in two crossed molecular beams by pulsed high-voltage discharge. We measured the angle-specific time-of-flight spectra and the photoionization-efficiency spectrum of product C8H2 using a crossed-molecular-beam quadrupole-mass apparatus and synchrotron vacuum-ultraviolet photoionization. The C8H2 product has translational energy stretching to the energetic limit of producing HC8H + H and has an ionization threshold 9.0 ± 0.1 eV in good agreement with that of HC8H. The quantum-chemical calculations are in accord with the experimental results. This work demonstrates that octatetrayne can be synthesized from the reaction C4H + HC4H → HC8H + H. |
| Databáze: | OpenAIRE |
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