Excited-state dynamics and efficient triplet formation in phenylthiophene compounds

Literature Information

Publication Date 2011-12-15
DOI 10.1039/C2CP23602H
Impact Factor 3.676
Authors

Igor L. Zheldakov, Jenna M. Wasylenko, Christopher G. Elles


View Original

Abstract

Ultrafast transient absorption spectroscopy monitors the solution-phase dynamics of 2-phenylthiophene (PT), 2-methyl-5-phenylthiophene (MPT), and 2,4-dimethyl-5-phenylthiophene (DMPT) following excitation to the first singlet excited state. Rapid spectral evolution indicates that structural relaxation on the S1 potential energy surface occurs within ∼100 fs, whereas the picosecond-scale kinetics reveal efficient intersystem crossing to the triplet manifold of states. The rate of intersystem crossing is significantly faster for DMPT (21.6 ± 1.0 ps) than for PT (102 ± 5 ps) and MPT (132 ± 3 ps). The measurements provide new limits on the timescale for a competing isomerization reaction in which the phenyl group changes position on the thiophene ring. The role of methyl substitution in driving the intersystem crossing is discussed.

Related Literature

Mussel-inspired PDA-based MIP-SERS sensor for the detection of trace MG in environmental water

Xiang Zhang, Longlong Luan, Ying Huang, Mingming Yao, Pan Li

2022-11-02 Paper

DOI: 10.1039/D2AN01337A

Fabrication of an amperometric bienzyme biosensing system with neutral red functionalized carbon nanotubes

D. R. Shobha Jeykumari, S. Sriman Narayanan

2009-05-19 Paper

DOI: 10.1039/B820040H

Label-free fibre optic Raman spectroscopy with bounded simplex-structured matrix factorization for the serial study of serum in amyotrophic lateral sclerosis

Visakan Kadirkamanathan, Martin R. Turner, Andrea Malaspina, John C. C. Day

2022-09-28 Paper

DOI: 10.1039/D2AN00936F

Ultra-thin silica shell-guarded nanoflares for high-fidelity live cell miRNA-21 imaging by fully avoiding the interference of biothiols

Yuze Luo, Zefeng Wang, Junqin Li, Wenhua Yi, Ke Yang, Chunlei Ou, Le Deng, Dinggeng He

2022-11-07 Communication

DOI: 10.1039/D2AN01441F

Reflection contributions to the dispersion artefact in FTIR spectra of single biological cells

Paul Bassan, Hugh J. Byrne, Joe Lee, Franck Bonnier, Colin Clarke, Paul Dumas, Ehsan Gazi, Michael D. Brown, Peter Gardner

2009-04-09 Paper

DOI: 10.1039/B821349F

A colorimetric aptasensor based on a hemin/EpCAM aptamer DNAzyme for sensitive exosome detection

Jingjing Kuang, Zhibo Fu, Xuezhi Sun, Chuhui Lin, Shenglong Yang, Jiayao Xu, Min Zhang, Hongyang Zhang, Fanghong Ning, Ping Hu

2022-10-05 Paper

DOI: 10.1039/D2AN01410F

Back cover

Front/Back Matter

DOI: 10.1039/B911241N

Radiation treatment response and hypoxia biomarkers revealed by machine learning assisted Raman spectroscopy in tumour cells and xenograft tissues

Xinchen Deng, Kirsty Milligan, Alexandre Brolo, Jeffrey L. Andrews, Andrew Jirasek

2022-09-26 Paper

DOI: 10.1039/D2AN01222G

Phenotypic heterogeneity within microbial populations at the single-cell level investigated by confocal Raman microspectroscopy

Antje Hermelink, Angelika Brauer, Peter Lasch, Dieter Naumann

2009-03-25 Paper

DOI: 10.1039/B822574E

You might also like

Compound Q&A

What precautions should be taken when handling 4-(2-Furylmethyl)thiomorpholine 1,1-dioxide (CAS: 79206-94-3)?

When handling 4-(2-Furylmethyl)thiomorpholine 1,1-dioxide (CAS: 79206-94-3), it ...

79206-94-34-(2-Furylmethyl)thi...
Compound Q&A

What precautions should be taken when handling 4-Chloro-N-[2-(4-morpholinyl)ethyl]benzamide (CAS: 71320-77-9)?

When handling 4-Chloro-N-[2-(4-morpholinyl)ethyl]benzamide (CAS: 71320-77-9), it...

71320-77-94-Chloro-N-[2-(4-mor...
Compound Q&A

How should waste containing 2-[2-(2-Methoxyethoxy)ethoxy]ethyl 4-methylbenzenesulfonate (CAS: 62921-74-8) be handled?

Waste containing this compound (CAS: 62921-74-8) should be handled according to ...

62921-74-82-[2-(2-Methoxyethox...
Compound Q&A

How should waste containing (S)-Methyl 2-amino-3-cyclohexylpropanoate be handled?

Waste containing (S)-Methyl 2-amino-3-cyclohexylpropanoate should be collected i...

40056-18-6(S)-Methyl 2-amino-3...
166882-70-85-({4-[(2S,4R)-4-Hyd...
Compound Q&A

Are there alternatives to (2E)-3-(3,4-Dichlorophenyl)acrylic acid (CAS: 7312-27-8) in synthesis?

There are several alternatives to (2E)-3-(3,4-Dichlorophenyl)acrylic acid in syn...

7312-27-8(2E)-3-(3,4-Dichloro...
Compound Q&A

How should Ethyl 6-(2-nitrophenyl)imidazo[2,1-b][1,3]thiazole-3-carboxylate (CAS: 925437-84-9) be stored?

Ethyl 6-(2-nitrophenyl)imidazo[2,1-b][1,3]thiazole-3-carboxylate (CAS: 925437-84...

925437-84-9Ethyl 6-(2-nitrophen...
Compound Q&A

How should waste containing 2-(1,3-Thiazol-2-yl)ethanamine (CAS: 18453-07-1) be handled?

Waste containing 2-(1,3-Thiazol-2-yl)ethanamine (CAS: 18453-07-1) should be coll...

18453-07-12-(1,3-Thiazol-2-yl)...
Compound Q&A

How is Methyl 5-iodo-2-methylbenzoate (CAS: 103440-54-6) typically synthesized?

Methyl 5-iodo-2-methylbenzoate can be synthesized through the iodination of meth...

103440-54-6Methyl 5-iodo-2-meth...
Compound Q&A

How is 5-Chloro[1,2,4]triazolo[1,5-a]pyridine (CAS: 1427399-34-5) typically synthesized?

5-Chloro[1,2,4]triazolo[1,5-a]pyridine is commonly synthesized via the condensat...

1427399-34-55-Chloro[1,2,4]triaz...

Source Journal

Physical Chemistry Chemical Physics

Physical Chemistry Chemical Physics
CiteScore: 5.5
Self-citation Rate: 10.3%
Articles per Year: 3036

Physical Chemistry Chemical Physics (PCCP) is an international journal co-owned by 19 physical chemistry and physics societies from around the world. This journal publishes original, cutting-edge research in physical chemistry, chemical physics and biophysical chemistry. To be suitable for publication in PCCP, articles must include significant innovation and/or insight into physical chemistry; this is the most important criterion that reviewers and Editors will judge against when evaluating submissions. The journal has a broad scope and welcomes contributions spanning experiment, theory, computation and data science. Topical coverage includes spectroscopy, dynamics, kinetics, statistical mechanics, thermodynamics, electrochemistry, catalysis, surface science, quantum mechanics, quantum computing and machine learning. Interdisciplinary research areas such as polymers and soft matter, materials, nanoscience, energy, surfaces/interfaces, and biophysical chemistry are welcomed if they demonstrate significant innovation and/or insight into physical chemistry. Joined experimental/theoretical studies are particularly appreciated when complementary and based on up-to-date approaches.

Recommended Compounds

Recommended Suppliers

Disclaimer
This page provides academic journal information for reference and research purposes only. We are not affiliated with any journal publishers and do not handle publication submissions. For publication-related inquiries, please contact the respective journal publishers directly.
If you notice any inaccuracies in the information displayed, please contact us at support@chemtradehub.com. We will promptly review and address your concerns.