期刊
JOURNAL OF THE AMERICAN CHEMICAL SOCIETY
卷 133, 期 49, 页码 19796-19806出版社
AMER CHEMICAL SOC
DOI: 10.1021/ja206522s
关键词
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资金
- Swiss National Science Foundation [200020-124349/1]
A set of arenes (phenylacetylene, indene, and naphthalene cations and C11H9+ isomers) was produced from 2,4-hexadiyne diluted in helium in a hot-cathode discharge source. The mass-selected ions were codeposited with neon at 6 K and investigated by electronic absorption spectroscopy. This reveals that fused-ring species are readily formed from an acyclic precursor in such a source. After photobleaching of matrices containing C11H9+, neutral C11H9 center dot radicals were also characterized. Assignment of the observed transitions to different m/z = 141 cationic and corresponding neutral isomers is given and supported by experiments using other precursors, fluorescence measurements, and time-dependent density functional and second-order approximate coupled cluster calculations.
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