ArticleInternational journal of molecular sciences2025
Study of Vibronic and Cationic Features of m-Diethoxybenzene via REMPI, Hole-Burning, and MATI Spectroscopy.
Article in International journal of molecular sciences, 2025. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 4 papers.
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4 citing papers in PubMed.
- Rotamer-Resolved Vibronic and Cationic Properties ofMolecules (Basel, Switzerland) · 2026Article
- Vibronic Spectroscopy and Cationic Features of p-Diethynylbenzene: Insights into Electronic Conjugation and Accidental Resonances.Molecules (Basel, Switzerland) · 2026Article
- Spectroscopic Identification and Characterization of Three Rotamers ofInternational journal of molecular sciences · 2026Article
- Study of Vibronic and Cationic Features of p-Diethoxybenzene via REMPI, Hole-Burning, and MATI Spectroscopy.International journal of molecular sciences · 2026Article
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5 authors.
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Abstract
Phenetole derivatives are widely used in various fields, and the presence of the ethoxy group, with its longer alkyl chain, suggests the possibility of multiple rotamers. In particular, diethoxybenzene derivatives, containing two ethoxy groups, exhibit an even greater number of rotameric forms. In this study, we report the first investigation of the stable structures, vibronic spectra, and cationic spectra of different rotamers of m-diethoxybenzene (MDEB). Resonance-enhanced multiphoton ionization (REMPI) spectra of the rotamers were identified via hole-burning (HB) experiments, while mass-analyzed threshold ionization (MATI) spectra provided precise adiabatic ionization energies (IEs) of the observed rotamers, as well as the active vibrations of their corresponding cations. Density functional theory (DFT) calculations predicted thirteen rotamers of MDEB, but only two rotamers were observed in the supersonic molecular beam. The band origins of the S
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