Gas-Phase Synthesis and Characterization of the Methyl-2,2-dicyanoacetate Anion Using Photoelectron Imaging and Dipole-Bound State Autodetachment
| Autor: | Jan R. R. Verlet, Cate S. Anstöter |
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| Rok vydání: | 2020 |
| Předmět: |
Materials science
Electrospray ionization Binding energy Infrared spectroscopy 02 engineering and technology Tetracyanoethylene 010402 general chemistry 021001 nanoscience & nanotechnology 01 natural sciences Spectral line 0104 chemical sciences 3. Good health Ion chemistry.chemical_compound chemistry Bound state Physics::Atomic and Molecular Clusters Physical chemistry Molecule General Materials Science Physics::Chemical Physics Physical and Theoretical Chemistry 0210 nano-technology Astrophysics::Galaxy Astrophysics |
| Zdroj: | Journal of physical chemistry letters, 2020, Vol.11(15), pp.6456-6462 [Peer Reviewed Journal] |
| ISSN: | 1948-7185 |
| DOI: | 10.1021/acs.jpclett.0c02036 |
| Popis: | The methyl-2,2-dicyanoacetate anion is synthesised in an electrospray ionisation source through a gas-phase reaction involving tetracyanoethylene and methanol. Photoelectron imaging is used to determine the isomeric form of the product. The photoelectron spectra and angular distributions are only consistent with a single isomer. Additionally, mode-specific vibrational autodetachment is observed. This can be correlated with the emission from a photoexcited dipole-bound state by considering the IR spectrum of the neutral molecule, adding further confirmation of the isomeric form and providing a binding energy of the dipole-bound state. Our experiments show how conventional photoelectron imaging can be used to determine detailed information about gas-phase reaction products. |
| Databáze: | OpenAIRE |
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