Comparing the electronic relaxation dynamics of aniline and d7-aniline following excitation at 272–238 nm

Literature Information

Publication Date 2015-05-14
DOI 10.1039/C5CP01883H
Impact Factor 3.676
Authors

Oliver M. Kirkby, Matthieu Sala, Garikoitz Balerdi, Rebeca de Nalda, Luis Bañares, Stéphane Guérin, Helen H. Fielding


View Original

Abstract

Femtosecond time-resolved photoelectron spectroscopy experiments have been used to compare the electronic relaxation dynamics of aniline and d7-aniline following photoexcitation in the range 272–238 nm. Together with the results of recent theoretical investigations of the potential energy landscape [M. Sala, O. M. Kirkby, S. Guérin and H. H. Fielding, Phys. Chem. Chem. Phys., 2014, 16, 3122], these experiments allow us to resolve a number of unanswered questions surrounding the nonradiative relaxation mechanism. We find that tunnelling does not play a role in the electronic relaxation dynamics, which is surprising given that tunnelling plays an important role in the electronic relaxation of isoelectronic phenol and in pyrrole. We confirm the existence of two time constants associated with dynamics on the 11πσ* surface that we attribute to relaxation through a conical intersection between the 11πσ* and 11ππ* states and motion on the 11πσ* surface. We also present what we believe is the first report of an experimental signature of a 3-state conical intersection involving the 21ππ*, 11πσ* and 11ππ* states.

Related Literature

Organocatalytic synthesis of poly(hydroxymethylfuroate) via ring-opening polymerization of 5-hydroxymethylfurfural-based cyclic oligoesters‡

Daniele Ragno, Graziano Di Carmine, Micaela Vannini, Olga Bortolini, Daniela Perrone, Sara Buoso, Monica Bertoldo, Alessandro Massi

2022-02-04 Paper

DOI: 10.1039/D1PY01687C

Molecularly engineered dual-crosslinked elastomer vitrimers with superior strength, improved creep resistance, and retained malleability

Lin Wang, Yunhe Qiao, Yuli Wang, Ziwen Cui, Shaoyi Zhu, Fuwei Dong, Sikun Fang, Aihua Du

2022-06-22 Paper

DOI: 10.1039/D2PY00489E

Front cover

2022-08-16 Cover

DOI: 10.1039/D2PY90106D

The structure–self-assembly relationship in PDMAEMA/polyester miktoarm stars

Anna Mielańczyk, Maria Kupczak, Olesya Klymenko, Sebastian Arabasz, Krystian Madej, Dorota Neugebauer

2022-07-27 Paper

DOI: 10.1039/D2PY00644H

Orthogonally grown polycarbonate and polyvinyl block copolymers from mechanistically distinct (co)polymerizations

Naganatha Patil, Yves Gnanou, Xiaoshuang Feng

2022-05-11 Paper

DOI: 10.1039/D2PY00442A

Chain-folding regulated self-assembly, outstanding bactericidal activity and biofilm eradication by biomimetic amphiphilic polymers

Ranajit Barman, Debes Ray, V. K. Aswal, Suhrit Ghosh

2022-07-01 Paper

DOI: 10.1039/D2PY00625A

Back cover

2022-07-26 Cover

DOI: 10.1039/D2PY90098J

You might also like

155412-88-71-(3-Aminophenyl)-3-...
Compound Q&A

How should waste containing 1-(D-Ribofuranosyl)-1,4-dihydro-3-pyridinecarboxamide (CAS: 19132-12-8) be handled?

Waste containing 1-(D-Ribofuranosyl)-1,4-dihydro-3-pyridinecarboxamide (CAS: 191...

19132-12-81-(D-Ribofuranosyl)-...
Compound Q&A

What regulatory guidelines apply to 2-Methyl-2-propanyl 3-bromo-3-(hydroxymethyl)-1-azetidinecarboxylate (CAS: 2007919-81-3)?

2-Methyl-2-propanyl 3-bromo-3-(hydroxymethyl)-1-azetidinecarboxylate (CAS: 20079...

2007919-81-32-Methyl-2-propanyl ...
Compound Q&A

What is N-(4-Chloro-2-pyridinyl)acetamide (CAS: 245056-66-0)?

N-(4-Chloro-2-pyridinyl)acetamide (CAS: 245056-66-0) is a chemical compound with...

245056-66-0N-(4-Chloro-2-pyridi...
Compound Q&A

What is 5-Chloro-2-hydroxybenzoic acid (CAS: 321-14-2)?

5-Chloro-2-hydroxybenzoic acid, also known as 5-chlorosalicylic acid, is an arom...

321-14-25-Chloro-2-hydroxybe...
Compound Q&A

What precautions should be taken when handling 1,1-Dichloro-1-fluoroethane (CAS: 1717-00-6)?

When handling 1,1-Dichloro-1-fluoroethane (CAS: 1717-00-6), it is important to u...

1717-00-61,1-Dichloro-1-fluor...
Compound Q&A

What are the physical and chemical properties of Fmoc-(2S,3R)-3-phenylpyrrolidine-2-carboxylic acid (CAS: 281655-32-1)?

Fmoc-(2S,3R)-3-phenylpyrrolidine-2-carboxylic acid is a white crystalline solid ...

281655-32-1Fmoc-(2S,3R)-3-pheny...
Compound Q&A

What are the main uses of 4-Amino-5-bromo-2-pyridinecarboxylic acid (CAS: 1363381-01-4)?

4-Amino-5-bromo-2-pyridinecarboxylic acid is primarily used as a precursor in th...

1363381-01-44-Amino-5-bromo-2-py...
1007881-98-2(S)-tert-butyl 2-((2...
Compound Q&A

What precautions should be taken when handling 8-bromo-2,2-dimethyl-3,4-dihydro-2H-1,4-benzoxazin-3-one (CAS: 688363-73-7)?

When handling 8-bromo-2,2-dimethyl-3,4-dihydro-2H-1,4-benzoxazin-3-one, use prop...

688363-73-78-bromo-2,2-dimethyl...

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.