Keywords
ammonium cation
azacrown ether
femtosecond spectroscopy
hydrogen bonds
molecular fan
photorecoordination
supramolecular complex
TD DFT calculations
Abstract
Time-resolved femtosecond absorption spectroscopy data together with TD DFT calculations for CD6, a bis(aza-18 crown-6)-containing dienone derivative of cyclohexanone, as well as its complex with EtNH3+ confirm that the latter undergoes photoinduced recoordination. This process takes hundreds of femtoseconds and involves N···H···N bond cleavage along with the formation of new O···H···N bonds. There is no change in the conformation of the complex upon photorecoordination.
Funders
Russian Science Foundation
25-73-20016
Ministry of Education and Science of the Russian Federation
AAAA-A21-121011590090-7
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