Steffen Jockusch, Ph.D

Instrumentation Specialist in Spectroscopic Methods, Photophysics and Optics

315c Physical Sciences Lab Building

419-372-7614
jockus@bgsu.edu

Biographical Facts:

Joined the staff in 2021

Associate Research Scientist: Columbia University, Chemistry Department (1997-2021)

Postdoc: Columbia University (1994-1997)

Ph.D. (Dr. rer. nat.): Martin-Luther-University Halle-Wittenberg, Germany (1993)

Undergraduate studies: Technical University Merseburg, Germany (1984-1989)

Topics of interest:

Spectroscopy of reactive intermediates (excited states, singlet oxygen, radicals)

https://scholar.google.com/citations?user=Fo_zBqsAAAAJ&hl=en

Recent Publications:

Ahuja, S.; Baburaj, S.; Valloli, L. K.; Rakhimov, S. A.; Manal, K.; Kushwaha, A.; Jockusch, S.; Forbes, M. D. E.; Sivaguru, J.: “Photochemical [2+4]-dimerization reaction from the excited state.”  Angew. Chem. 2024, 136, e202316662, DOI: 10.1002/anie.202316662.

Singathi, R; Baburaj, S.; Parthiban, J.; Carroll, G. T.; Jockusch, S.; Sivaguru, J.: “Near-visible light active biomass derived benzoin photoinitiators for energy curing applications.”  Polym. Chem. 2024, 15, 878-883, DOI: 10.1039/d3py01029e.

Jockusch, S.; Kazancioglu, E. O.; Karaca, N.; Arsu, N.; Landgraf, S.; Ogilby, P. R.: “Thioxanthone dioxide triplet states have low oxygen quenching rate constants.”  J. Phys. Chem. B, 2024, 128, 244-249, DOI: 10.1021/acs.jpcb.3c06077.

Ghosh, S. K.; Valloli, L. K.; Unny, D.; Sivaguru, J.; Jockusch, S.; Ramamurthy, V.: “Room temperature phosphorescence of 2-thioxo-coumarins in aqueous solution promoted by octa acid inclusion.”  J. Photochem. Photobiol. A, 2024, 451, 115510, DOI: 10.1016/j.jphotochem.2024.115510.

Ji, K.; Parthiban, J.; Jockusch, S.; Sivaguru, J.; Porco, Jr, J. A.: “Triple-dearomative photocycloaddition: A strategy to construct caged molecular frameworks.”  J. Am. Chem. Soc. 2024, 146, 13445-13454, DOI: 10.1021/jacs.4c02674.

Parthiban, J.; Garg, D.; Ahuja, S.; Jockusch, S.; Ugrinov, A.; Sivaguru, J.: “Synergistic excited state photocatalysis: Divergent energy transfer vs Lewis acid mediated phototransformations.”  ACS Catalysis, 2024, 14, 8794-8802, DOI: 10.1021/acscatal.4c01185.

Coskun, H. I.; Bossa, F. D. L.; Hu, X.; Jockusch, S.; Sobieski, J.; Yilmaz, G.; Matyjaszewski, K.: “ATRP with ppb concentrations of photocatalysts.”  J. Am. Chem. Soc. 2024, 146, 28994, DOI: 10.1021/jacs.4c09927.

Acquah, C; Hoehn, S.; Krul, S.; Jockusch, S.; Yang, S.; Seth, S. K.; Lee, E.; Xiao, H.; Crespo-Hernández, C. E.: “Electronic relaxation pathways in thio-acridone and thio-coumarin: two heavy-atom free photosensitizers absorbing visible light.”  Phys. Chem. Chem. Phys. 2024, 26, 28980-28991, DOI: 10.1039/d4cp03720k.

Obloy, L. M.; Jockusch, S.; Tarnovsky, A. N.: “Shortwave infrared polymethine dyes for bioimaging: Ultrafast relaxation dynamics and excited-state decay pathways.”  Phys. Chem. Chem. Phys. 2024, 26, 24261-24278, DOI: 10.1039/d4cp01411a.