Vibronic and cation spectroscopy of p-ethynylaniline
Vibronic and cation spectra of p-ethynylaniline. [Display omitted] ► The vibronic and cation spectra of p-ethynylaniline have been recorded. ► The electronic excitation and ionization energies are precisely determined. ► The observed vibrations include in-plane ring deformation and bending modes. We...
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| Published in | Chemical physics letters Vol. 543; pp. 19 - 22 |
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| Main Authors | , |
| Format | Journal Article |
| Language | English |
| Published |
Elsevier B.V
10.08.2012
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| Online Access | Get full text |
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| Summary: | Vibronic and cation spectra of p-ethynylaniline. [Display omitted]
► The vibronic and cation spectra of p-ethynylaniline have been recorded. ► The electronic excitation and ionization energies are precisely determined. ► The observed vibrations include in-plane ring deformation and bending modes.
We applied the resonant two-photon ionization and mass-analyzed threshold ionization spectroscopic techniques to record the vibronic and cation spectra of p-ethynylaniline. The cation spectra were obtained by ionizing via the 00, 121, and 11 levels of the electronically excited S1 state. The band origin of the S1←S0 electronic excitation and the adiabatic ionization energy were found to be 32656±2cm−1 and 61270±5cm−1, respectively. The observed active modes result from the in-plane ring deformation, substituent-sensitive in-plane bending, and out-of-plane vibrations. |
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| ISSN: | 0009-2614 1873-4448 |
| DOI: | 10.1016/j.cplett.2012.06.030 |