ArticleThe journal of physical chemistry. A2021
Twisted Intramolecular Charge Transfer (TICT) Controlled by Dimerization: An Overlooked Piece of the TICT Puzzle.
Article in The journal of physical chemistry. A, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 20 papers.
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Who cites it
20 citing papers in PubMed.
- Geometric orthogonality as a recipe for efficient intramolecular charge generation in core substituted NDI derivatives.Chemical science · 2026Article
- Unveiling the Photophysical Properties of Indole-Containing Boron Complexes: Exploring Intramolecular Charge Transfer Character, Tunable Emission, and Large Stokes Shifts.Chemphyschem : a European journal of chemical physics and physical chemistry · 2026Article
- One-step synthesis of a multi-functional imidazole luminescent sensor with AIE, acid-responsive, and sulfate-sensing properties.RSC advances · 2026Article
- On a Fluorescent Dye for Indicator Displacement From Cucurbit[7]uril-Based Molecular Recognition: A Joint Experimental-Computational Study.Chemphyschem : a European journal of chemical physics and physical chemistry · 2026Article
- Torsion-Induced π-Conjugation Offers an Approach to Small Coumarin-Based Color-Changing Fluorescent Sensors of Esterase Activity.Chemistry (Weinheim an der Bergstrasse, Germany) · 2026Article
- Excited-State Relaxation Pathways of 4-Aminobiphenyl-2-Pyrimidine Derivatives: An Ultrafast Perspective.The journal of physical chemistry. A · 2025Article
- Janus-Type Photophysics of Rotational Isomers in a Diphenylanthracene Dimer.Angewandte Chemie (International ed. in English) · 2025Article
- Influence of hydrogen bonding on twisted intramolecular charge transfer in coumarin dyes: an integrated experimental and theoretical investigation.RSC advances · 2025Article
- Isoelectronic Push-Pull Fluorescent Difluoroborates: Halogen Bonding and Photophysical Properties.The Journal of organic chemistry · 2025Article
- Excited-State Rotational Dynamics of Amine-Functionalized Terephthalic Acid Derivatives as Linker Models for Metal-Organic Frameworks.The journal of physical chemistry. A · 2025Article
- Study of Photoselectivity in Linear Conjugated Chromophores Using the XMS-CASPT2 Method.ACS physical chemistry Au · 2024Article
- Article
- Aryl-Modified Pentamethyl Cyanine Dyes at the C2' Position: A Tunable Platform for Activatable Photosensitizers.Advanced science (Weinheim, Baden-Wurttemberg, Germany) · 2024Article
- New Megastigmane and Polyphenolic Components of Henna Leaves and Their Tumor-Specific Cytotoxicity on Human Oral Squamous Carcinoma Cell Lines.Antioxidants (Basel, Switzerland) · 2023Article
- Indocyanine Green (ICG) Fluorescence Is Dependent on Monomer with Planar and Twisted Structures and Inhibited by H-Aggregation.International journal of molecular sciences · 2023Article
- Durable organic nonlinear optical membranes for thermotolerant lightings and in vivo bioimaging.Nature communications · 2023Article
- The investigation of the ultrafast excited state deactivation mechanisms for coumarin 307 in different solvents.RSC advances · 2023Article
- Regulating the proximity effect of heterocycle-containing AIEgens.Nature communications · 2023Article
- Modular synthesis, host-guest complexation and solvation-controlled relaxation of nanohoops with donor-acceptor structures.Chemical science · 2022Article
- Push-Pull Structures Based on 2-Aryl/thienyl Substituted Quinazolin-4(3Molecules (Basel, Switzerland) · 2022Article
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Authors and funding
4 authors.
Funding
No grant is acknowledged in the PubMed record.
Abstract
Organic dyes have shown high efficiencies in solar cells, which is mainly attributed to the push-pull strategy present in such dyes upon attaching to the semiconductor surfaces. We deeply studied the fundamental photophysical properties of cyanoacrylic dyes, mostly the L1 dye, and found unique emission properties that depend on many factors such as the solvent polarity and the concentration of the dye and could present a complete emission picture about this family of dyes. The L1 dye shows an intramolecular charge transfer (ICT) emission state at low concentrations (approximately nanomolar scale) and shows a twisted intramolecular charge transfer (TICT) emission state in specific solvents upon increasing the concentration to the micromolar scale. Moreover, the associated emission lifetimes of the ICT and TICT states of the L1 dye depend on solvent basicity, highlighting the role of hydrogen bond formation on controlling such states. Density functional theory calculations are performed to gain insight into the photophysical properties of the dye and revealed that H-bonding between the carboxylic groups triggers the dimerization at low concentrations. Using femtosecond transient absorption, we assigned the rate of TICT formation to be in the range (160-650 fs)
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