Dr Surajit Kayal obtained his Bachelors (BSc Honours) in Chemistry from Calcutta University and MSc in Chemistry from IIT Delhi. After MSc, he taught at RGUKT Hyderabad as a Lecturer. He secured 29th rank in CSIR and obtained his PhD from the Indian Institute of Science, Bangalore, under the mentorship of Prof Siva Umapathy. His thesis involves the development of ultrafast stimulated Raman experimental setup and applying it to various chemical problems. After his PhD, he joined the University of Nottingham, UK as a Postdoctoral Fellow, where he worked with Prof MW George and Prof Sir Martyn Poliakoff on time-resolved Infrared Spectroscopy. Dr Kayal returned to India in 2022 and worked for Elsevier as an Associate Scientific Editor, before joining Krea University in 2023.

Dr Surajit Kayal’s research interest is in the area of time-resolved spectroscopy, especially time-resolved vibrational spectroscopy. He is very much interested in applying this structure specific tool to understand excited state chemical processes in real-time.

1. Selective Photoinduced Charge Separation in Perylenediimide-Pillar[5]arene Rotaxanes, N. Pearce, K. Reynolds, Kayal, XZ Sun, S. Davies, F. Malagreca, C. Schürmann, S. Ito, A. Yamano, S. Argent, M. George, N. Champness, Nature Communications 2022, 13, 1-10. https://doi.org/10.1038/s41467-022-28022-3, IF – 17.69.

2. Wavelength Dependent Photoextrusion and Tandem Photoextrusion Reactions of Ninhydrin bis-Acetals for the Synthesis of 8-Ring Lactones, Benzocyclobutenes and Orthoanhydrides. W. Sun, Kayal, W. Raimbach, XZ. Sun, M.E. Light, M.W.D. Hanson Heine, MW. George, D.C. Harrowven, ChemComm, 2022, 58, 1546-1549. DOI- 10.1039/D1CC06800H, IF – 6.22

3. Integrated Multistep Photochemical and Thermal Continuous Flow Reactions; Production of Bicyclic Lactones with Kilogram Productivity, RA. Howie, LD. Elliott, Kayal, XZ Sun, MW. D Hanson-Heine, J. Hunter, CA. Clark, A. Love, C. Wiseall, M. Poliakoff, K Booker-Milburn, MW. George, Organic Process Research and Development, 2021, 25, 2052-2059, DOI -10.1021/acs.oprd.1c00089, IF – 3.317

4. Excited state switching in rhenium(I) bipyridyl complexes with donor-donor and donor-acceptor substituents, J. Sutton, D. Preston, P. Traber, J. Steinmetzer, X. Wu, Kayal, XZ Sun, JD Crowley, MW. George, S. Kupfer, KC. Gordon, Journal of American Chemical Society, 2021, 143(24), 9082-9093, DOI – 10.1021/jacs.1c0275, IF- 16.38.

5. Rational Design of Triplet Sensitizers for the Transfer of Excited State Photochemistry from UV to Visible, LD. Elliot, Kayal, MW. George, K Booker-Milburn, Journal of the American Chemical Society, 2020, 142 (35), 14947-14956. DOI – 10.1021/jacs.0c05069, IF- 16.38.

6. Excited State Structural Dynamics of 4-Cyano-4’-hydroxystilbene: Deciphering the Signatures of Proton-Coupled Electron Transfer using Ultrafast Raman Loss Spectroscopy, R. Mathew, Kayal, YA. Lakshmanna, Physical Chemistry Chemical Physics, 2019, 21, 22409-22419. DOI – 10.1039/c9cp02923k, IF – 3.676.

7. Probing the Effect of Solvation on Photoexcited 2-(2’-Hydroxyphenyl)benzothiazole via Ultrafast Raman loss Spectroscopic Studies, Kayal, K. Roy, YA. Lakshmanna, S. Umapathy, Journal of Chemical Physics, 2018, 149, 044310. DOI – 10.1063/1.5028274, IF – 3.48.

8. Ultrafast Raman Loss Spectroscopy Unravels the Dynamics in Entangled Singlet and Triplet States in Thioxanthone, Kayal, K. Roy, YA. Lakshmanna, S. Umapathy, Journal of Physical Chemistry A, 2018, 122, 6048-6054. DOI – 10.1021/acs.jpca.8b04310, IF- 2.78.

9. Femtosecond Time-resolved Raman Spectroscopy Reveals Structural Evidence for meta Effect in Stilbenols, S.M. Bilal, Kayal, K.S Sanju, YA. Lakshmanna, Journal of Physical Chemistry A, 2018, 122, 4601-4608. DOI – 10.1021/acs.jpca.7b12339, IF – 2.781.

10. Intermolecular Hydrogen Bonding Controlled Intersystem Crossing Rates of Benzophenone, R.K. Venkatraman, Kayal, Arvind Barak, A. Orr-Ewing, S. Umapathy, Journal of Physical Chemistry Letters, 2018, 9, 1642-1648. DOI – 10.1021/acs.jpclett.8b00345, IF – 6.475.

11. Femtosecond Coherent Nuclear Dynamics of Excited Tetraphenylethylene: Ultrafast Transient Absorption and Ultrafast Raman Loss Spectroscopic Studies, Kayal, K. Roy, S. Umapathy, Journal of Chemical Physics, 2018, 148, 024301. DOI – 10.1063/1.5008726, IF – 3.48.

12. Understanding Ultrafast Dynamics of Conformation Specific Photo-Excitation: A Femtosecond Transient Absorption and Ultrafast Raman Loss Study, K. Roy, Kayal, R.K. Venkatraman, F. Ariese, A. Beeby, S. Umapathy, Journal of Physical Chemistry A, 2017, 121 (35),6538-6546. DOI – 10.1021/acs.jpca.7b03893, IF – 2.781.

13. Mode-Specific Excited State Dynamics of Bis(phenylethynyl)benzene Using Ultrafast Raman Loss Spectroscopy, K. Roy, Kayal, F. Ariese, A. Beeby, S. Umapathy, Journal of Chemical Physics, 2017, 146, 064303(1)- 064303(8). DOI – 10.1063/1.4975174, IF – 3.48.

1. Structure and Dynamics from Time Resolved Absorption and Raman Spectroscopy, S. Umapathy, K. Roy, Kayal, N. Rai, R.K. Venkatraman, The Future of Dynamic and Structural Science- NATO Science for Peace and Security Series- A: Chemistry and Biology, Published by Springer, P.O. Box 17, 3300 AADordrecht, The Netherland.

2. Time-Resolved Spectroscopy: Instrumentation and Applications. F. Ariese, K. Roy, V. R.K, H.C. Sudeeksha, Kayal, S. Umapathy, Encyclopedia of Analytical Chemistry, Published by Wiley. 2017, 1-55.

3. Ultrafast Infrared Probes of Electronic Processes in Materials in Molecular and Laser Spectroscopy: Advances and Applications. Kayal, Molecular and Laser Spectroscopy: Advances and Applications: Volume 3. Published by Elsevier, 2022, 609-647.

4. Ultrafast Spectroscopy of the transition state: Real-time Tracking of the Molecular structural Dynamics of Photochemical Pathways using Vibrational spectroscopic techniques, R.K. Venkatraman, Kayal, Molecular and Laser Spectroscopy: Advances and Applications: Volume 3. Published by Elsevier, 2022, 579-608.

1. Femtosecond Stimulated Raman Scattering: Theory and Experiments, K. Roy, Kayal, N. Rai, S. Umapathy, DAE-BRNS National Laser Symposium (NLS-22), 2013, 24, 8-11.

Energetics and Kinetics