title: Hyperfine coupling constants of the cyclohexadienyl radical in benzene and dilute aqueous solution.
abstract: The muon hyperfine coupling constant (Aμ) of the muoniated cyclohexadienyl radical (C6H6Mu) has been directly measured in a 5 mM solution of benzene in water by the radio-frequency muon spin resonance (RF-μSR) technique. The relative shift of Aμ in aqueous solution compared with the value in neat benzene (ΔAμ/Aμ = +0.98(5)% at 293 K) can now be compared directly with theoretical predictions. Application of the RF-μSR method to other dilute systems will provide extremely important information on understanding solvent effects.
authors.affiliation: Centre for Molecular and Materials Science, TRIUMF , 4004 Wesbrook Mall, Vancouver, British Columbia V6T 2A3, Canada.
authors.forename: Iain
authors.initials: I
authors.lastname: McKenzie
authors.forename: Robert
authors.initials: R
authors.lastname: Scheuermann
authors.forename: Stephen P
authors.initials: SP
authors.lastname: Cottrell
authors.forename: James S
authors.initials: JS
authors.lastname: Lord
authors.forename: Ian M
authors.initials: IM
authors.lastname: Tucker