| Autor: |
Yamaji, Minoru, Tojo, Sachiko, Majima, Tetsuro, Fujitsuka, Mamoru |
| Předmět: |
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| Zdroj: |
ChemistrySelect; Oct2024, Vol. 9 Issue 37, p1-5, 5p |
| Abstrakt: |
We have been studying mesolytic cleavage of X−Y σ‐bond (X−Y=CH2−O, CH2−S, S−S and Se−Se) tethering aryl (Ar) moieties such as phenyl, biphenyl, α‐ and β‐naphthyl groups. In the present study, possibility of mesolytic cleavage of carbon‐carbon bonds in radical anions of diarylethanes (Ar1CCAr2) was investigated by pulsed electron radiolysis in N,N‐dimethylformamide (DMF) and 2‐methyltetrahydrofuran (MTHF). No mesolytic C−C bond cleavage in the radical anions occurred in both solvents whereas in MTHF, formation of H‐adducts of the diarylethanes was seen in the transient absorption spectral changes. Based on the DFT calculations for the bond dissociation energy of the C−C bond and the singly occupied molecular orbital distributions on Ar1CCAr2 radical anions, we rationalize the absence of the mesolysis in comparison with experimental facts previously reported for Ar1X‐YAr2 radical anions having X−Y σ‐bond. [ABSTRACT FROM AUTHOR] |
| Databáze: |
Complementary Index |
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