25807-60-7

Basic information

• Product Name: Ethylium, 1-(4-fluorophenyl)-1-methyl-
• CAS NO: 25807-60-7
• Molecular Formula: C9H10F
• Molecular Weight: 137.177
• Mol File: 25807-60-7.mol
• Article Data: 4

Chemical Properties

• CAS DataBase Reference: Ethylium, 1-(4-fluorophenyl)-1-methyl-(CAS DataBase Reference)
• NIST Chemistry Reference: Ethylium, 1-(4-fluorophenyl)-1-methyl-(25807-60-7)
• EPA Substance Registry System: Ethylium, 1-(4-fluorophenyl)-1-methyl-(25807-60-7)

Safety Data

• Hazardous Substances Data: 25807-60-7(Hazardous Substances Data)

Upstream product

• 350-40-3 2-(4-fluorophenyl)-1-propene 
• 16804-70-9 cumyl cation 
• 455-10-7 1-(2-chloropropan-2-yl)-4-fluorobenzene 
• 402-41-5 4-fluorocumyl alcohol 

Relevant articles and documents

Evidence for significant through-space and through-bond electronic coupling in the 1,4-diphenylcyclohexane-1,4-diyl radical cation gained by absorption spectroscopy and DFT calculations

Photoinduced single-electron-transfer promoted oxidation of 2,5-diphenyl-l,5-hexadiene by using N-methylquinolinium tetrafluoroborate/ biphenyl co-sensitization takes place with the formation of an intense electronic absorption band at 476 nm, which is attributed to the 1,4-diphenylcyclohexane-1,4-diyl radical cation. The absorption maximum (λob) of this transient occurs at a longer wavelength than is expected for either the cumyl radical or the cumyl cation components. Substitution at the para positions of the phenyl groups in this radical cation by CH3O, CH3, F, Cl, and Br leads to an increasingly larger redshift of λob. A comparison of the ρ value, which was obtained from a Hammett plot of the electronic transition energies of the radical cations versus σ+, with that for the cumyl cation shows that the substituent effects on the transition energies for the 1,4-diarylcyclohexane-1,4-diyl radical cations are approximately one half of the substituent effects on the transition energies of the cumyl cation. The observed substitu_ent-induced redshifts of λob and the reduced sensitivity of λob to substituent changes are in accordance with the proposal that significant through-space and -bond electronic interactions exist between the cumyl radical and the cumyl cation moieties of the 1,4-diphenylcyclohexane-1,4-diyl radical cation. This proposal gains strong support from the results of density functional theory (DFT) calculations. Moreover, the results of time-dependent DFT calculations indicate that the absorption band at 476 nm for the 1,4-diphenylcyclohexane-1,4-diyl radical cation corresponds to a SOMO-3-SOMO transition.

Deuterium Isotope Effects on the Carbon-13 Chemical Shifts in 2-Substituted 2-Norbornyl Cations

Deuterium isotope effects on 13C chemical shifts have been examined as a function of location of deuterium in the C3-exo or C3-endo positions and as a function of increasing electron demand in the series 2-norbornanone, 2-aryl-2-norb