The zip file contains the main folders (1) 'analytics' and (2) 'kinetics' (1) ‘analytics’ Subfolders contain raw and evaluated analytics data for the Wheland σ-complexes, which were characterized (UV-Vis, HRMS and NMR) in d6-DMSO solution. (2) 'kinetics' Subfolders ‘EDA 11a + 12 ….’ contain *.txt files with absorbance vs. time data [raw data] *.exp files used for the kobs determination [evaluated data] *.pdf files with results of the kobs determination [evaluated data]. Compound labels (that is, 11a for the electrophile N-Boc-3-nitro-7-azaindole and 12a–12h for the nucleophilic carbanions) are identical to those in this Supporting Information.eng