Datasets for the figures and tables used in a manuscript published in Chemical Science (10.1039/d4sc01457j) Full author list: Melody E. Boëtius, Mark W. H. Hoorens, Martin Ošťadnický, Adèle D. Laurent, Mariangela di Donato, Aldo C. A. van Wingaarden,Michiel F. Hilbers, Ben L. Feringa, Wybren Jan Buma,* Miroslav Medveď* and Wiktor Szymanski* Title: Getting a molecular grip on the half-lives of iminothioindoxyl photoswitches Affiliations: Melody E. Boëtius, Mark W. H. Hoorens, Wiktor Szymanski, Department of Radiology, Medical Imaging Center, University Medical Center Groningen, Hanzeplein 1, 9713GZ Groningen, The Netherlands. Melody E. Boëtius, Mark W. H. Hoorens, Aldo C. A. van Wingaarden, Ben L. Feringa, Wiktor Szymanski, Center for Systems Chemistry, Stratingh Institute for Chemistry, University of Groningen, Nijenborgh 7, Groningen, The Netherlands Melody E. Boëtius, Wiktor Szymanski, Department of Medicinal Chemistry, Photopharmacology and Imaging, Groningen Research Institute of Pharmacy, University of Groningen, A. Deusinglaan 1, 9713 AV, Groningen, The Netherlands Martin Ošťadnický, Faculty of Natural Sciences, Comenius University, Ilkovičova 6, SK-842 15 Bratislava, Slovak Republic Adèle D. Laurent, Nantes Université, CNRS CEISAM, UMR 6230, F-44000 Nantes, France Mariangela di Donato, LENS, European Laboratory for Non-Linear Spectroscopy, 50019 Sesto Fiorentino, FI, Italy; CNR-ICCOM, via Madonna del Piano 10, 50019, Sesto Fiorentino (FI), Italy Michiel F. Hilbers, Wybren Jan Buma, Van't Hoff Institute for Molecular Sciences, University of Amsterdam, Science Park 904, 1098 XH Amsterdam, The Netherlands Wybren Jan Buma, Institute for Molecules and Materials, FELIX Laboratory, Radboud University, Toernooiveld 7c, 6525 ED Nijmegen, The Netherlands. Miroslav Medveď, Faculty of Natural Sciences, Department of Chemistry, Matej Bel University, Tajovského 40, SK-97400 Banská Bystrica, Slovak Republic; Regional Centre of Advanced Technologies and Materials, Czech Advanced Technology and Research Institute (CATRIN), Palacky University Olomouc, Křížkovského 511/8, 77900 Olomouc, Czech Republic Corresponding authors: Wybren Jan Buma, E-mail: W.J.Buma@uva.nlMiroslav Medveď, E-mail: miroslav.medved@upol.czWiktor Szymanski, E-mail: w.c.szymanski@rug.nl