Open AccessFront Cover: Protonation of γ‐Butyrolactone and γ‐Butyrolactam (ChemistryOpen 1/2021)
Author(s) -
Beck Stefanie,
Feller Michael,
Spies Laura,
Dietrich Kai J.,
Jessen Christoph,
Stierstorfer Karin,
Kornath Andreas J.
Publication year - 2021
Publication title -
chemistryopen
Language(s) - English
Resource type - Reports
SCImago Journal Rank - 0.644
H-Index - 29
ISSN - 2191-1363
DOI - 10.1002/open.202000351
Subject(s) - front cover , protonation , cover (algebra) , front (military) , quantum chemical , chemistry , crystal structure , crystallography , stereochemistry , chemical physics , medicinal chemistry , molecule , organic chemistry , physics , ion , meteorology , engineering , mechanical engineering
The Front Cover shows the crystal structures of protonated γ‐butyrolactone ([(CH 2 ) 3 OCOH][AsF 6 ]) and γ‐butyrolactam ([(CH 2 ) 3 NHCOH][AsF 6 ]). Both salts were synthesized by reacting the neutral compounds in the superacidic system HF/AsF 5 at low temperature. Interestingly, the X‐ray structure analyses revealed not only structural parameters of the salts, but also the existent of C⋅⋅⋅F contacts in both species. Quantum chemical calculations were performed to investigate the nature of these contacts. More information can be found in the Full Paper by Stefanie Beck et al.