ArticleScientific reports2016
A novel non-fluorescent excited state intramolecular proton transfer phenomenon induced by intramolecular hydrogen bonds: an experimental and theoretical investigation.
Article in Scientific reports, 2016. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 15 papers.
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Who cites it
15 citing papers in PubMed.
- Polyphenols at the Helm: Excited State Photophysics and Mechanistic Insights Into Protein-Aggregation Inhibition Through Ultrafast Studies.Chemistry, an Asian journal · 2026Article
- Photoexcitation Dynamics of 4-Aminopthalimide in Solution Investigated Using Femtosecond Time-Resolved Infrared Spectroscopy.International journal of molecular sciences · 2024Article
- Ultrafast Dynamics Across Pressure-Induced Electronic State Transitions, Fluorescence Quenching, and Bandgap Evolution in CsPbBrAdvanced science (Weinheim, Baden-Wurttemberg, Germany) · 2024Article
- Pressure-Induced Tunable Charge Carrier Dynamics in Mn-Doped CsPbBrMaterials (Basel, Switzerland) · 2022Article
- Theoretical Study on the Atom-Substituted Quinazoline Derivatives with Faint Emission as Potential Sunscreens.ACS omega · 2022Article
- A Selective Fluorescence Turn-On Probe for the Detection of DCNP (Nerve Agent Tabun Simulant).Materials (Basel, Switzerland) · 2019Article
- A Schiff Base Fluorescence Enhancement Probe for Fe(III) and Its Sensing Applications in Cancer Cells.Sensors (Basel, Switzerland) · 2019Article
- Tunable electron transfer rate in a CdSe/ZnS-based complex with different anthraquinone chloride substitutes.Scientific reports · 2019Article
- Spectroscopic Studies of Dual Fluorescence in 2-(4-Fluorophenylamino)-5-(2,4-dihydroxybenzeno)-1,3,4-thiadiazole: Effect of Molecular Aggregation in a Micellar System.Molecules (Basel, Switzerland) · 2018Article
- Challenges and Opportunities for Small-Molecule Fluorescent Probes in Redox Biology Applications.Antioxidants & redox signaling · 2018Review
- Theoretical research on excited-state intramolecular proton coupled charge transfer modulated by molecular structure.RSC advances · 2018Article
- Ab initio study of polar and non-polar aprotic solvents effects on some 3-hydroxychromones and 3-hydroxyquinolones derivatives.Journal of molecular modeling · 2018Article
- Synthesis, Spectra, and Theoretical Investigations of 1,3,5-Triazines Compounds as Ultraviolet Rays Absorber Based on Time-Dependent Density Functional Calculations and three-Dimensional Quantitative Structure-Property Relationship.Journal of fluorescence · 2018Article
- Exploring the excited state behavior for 2-(phenyl)imidazo[4,5-c]pyridine in methanol solvent.Scientific reports · 2017Article
- Shedding new light on an old molecule: quinophthalone displays uncommon N-to-O excited state intramolecular proton transfer (ESIPT) between photobases.Scientific reports · 2017Article
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Authors and funding
8 authors.
Funding
No grant is acknowledged in the PubMed record.
Abstract
Two molecules, 1-hydroxypyrene-2-carbaldehyde (HP) and 1-methoxypyrene-2-carbaldehyde (MP) were explored. We investigated their photophysical properties, using experimental transient absorption and theoretical density functional theory/time-dependent density functional theory (DFT/TDDFT). HP and MP have similar geometric conformations but exhibit entirely different photophysical properties upon excitation into the S1 state. In contrast to traditional excited state intramolecular proton transfer (ESIPT) in molecules that exhibit either single or dual fluorescence, HP has an unusual non-fluorescent property. Specifically, the ultrafast ESIPT process occurs in 158 fs and is followed by an intersystem crossing (ISC) component of 11.38 ps. In contrast to HP, MP undergoes only an 8 ps timescale process, which was attributed to interactions between solute and solvent. We concluded that this difference arises from intramolecular hydrogen bonds (IMHBs), which induce drastic structural alterntion upon excitation.
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