Open AccessSolvent-Responsive Radical Dimers
Author(s) -
Joshua P. Peterson,
Arthur H. Winter
Publication year - 2020
Publication title -
organic letters
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.94
H-Index - 239
eISSN - 1523-7060
pISSN - 1523-7052
DOI - 10.1021/acs.orglett.0c02152
Subject(s) - chemistry , solvent , combinatorial chemistry , photochemistry , organic chemistry
An air- and thermally stable aryl dicyanomethyl radical is reported that switches between two dimeric forms-a σ dimer and a π dimer-by changing the solvent. The two dimer forms exhibit unique optical properties leading to solvatochromic behavior. The solvent-responsive behavior of these radicals can be explained by the higher polarizability of the pimer than the σ dimer that leads to pimer stabilization in polar solvents.
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