Laser Flash Photolysis Generation, Spectra, and Lifetimes of Phenylcarbenium Ions in Trifluoroethanol and Hexafluoroisopropyl Alcohol. On the UV Spectrum of the Benzyl Cation | Zendy

McClelland Robert A. | Zendy; Chan Christopher | Zendy; Cozens Frances | Zendy; Modro Agnieszka | Zendy; Steenken Steen | Zendy

Premium

Laser Flash Photolysis Generation, Spectra, and Lifetimes of Phenylcarbenium Ions in Trifluoroethanol and Hexafluoroisopropyl Alcohol. On the UV Spectrum of the Benzyl Cation

Author(s) -

McClelland Robert A.,

Chan Christopher,

Cozens Frances,

Modro Agnieszka,

Steenken Steen

Publication year - 1991

Publication title -

angewandte chemie international edition in english

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 5.831

H-Index - 550

eISSN - 1521-3773

pISSN - 0570-0833

DOI - 10.1002/anie.199113371

Subject(s) - flash photolysis , radiolysis , chemistry , benzyl alcohol , ion , photochemistry , photodissociation , irradiation , alcohol , spectral line , organic chemistry , kinetics , catalysis , reaction rate constant , radical , physics , quantum mechanics , astronomy , nuclear physics

What UV/VIS properties are anticipated for the benzyl cation? Studies on substituted benzyl cations created by laser flash photolysis predict a strong band at λ = 300–310 nm and a (ca. 90%) weaker band at λ = 430–460 nm for PhCH 2 . This indicates that the transient formed by pulse radiolysis and described in the literature as a benzyl cation with λ max = 363 nm is probably another carbenium ion, perhaps a cyclohexadienyl cation. The lifetime for PhCh 2 ⊕in (CF 3 ) 2 CHOH is probably only 2–20 ns.

This content is not available in your region!

Continue researching here.

Having issues? You can contact us here

Accelerating Research