Electron transfer reactions and mobile holes in radiolysis of squalane. Time-resolved FDMR study

Journal Article · Thu Aug 29 04:00:00 EDT 1996 · Journal of Physical Chemistry

DOI:https://doi.org/10.1021/jp9532475· OSTI ID:380772

Skhrob, I A; Trifunac, A D ^[1]

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1. Argonne National Lab., IL (United States)

Fluorescence detected magnetic resonance (FDMR) is applied to study ion-molecule reactions in squalane (2,6,10,15,19, 23-hexamethyltetracosane). Several time-resolved pulsed FDMR experiments are suggested to measure rate constants of scavenging by aromatic solutes. These constants vary from 5 x 10{sup 8} to 1.6 x 10{sup 9} mol{sup -1} dm{sup 3} s{sup -1}. The ion-molecule reactions of radical cations are somewhat slower than reactions of radical anions. The scavenging of the alkane hole is significantly faster than ion-molecule reactions of molecular cations. The mobile hole decays on a time scale of several tens of nanoseconds. These FDMR results are in accord with our recent work on transient absorption spectroscopy in radiolysis of squalane. 27 refs., 6 figs.

• Research Organization: Argonne National Laboratory (ANL), Argonne, IL
• DOE Contract Number: W-31109-ENG-38
• OSTI ID: 380772
• Journal Information: Journal of Physical Chemistry, Journal Name: Journal of Physical Chemistry Journal Issue: 35 Vol. 100; ISSN JPCHAX; ISSN 0022-3654
• Country of Publication: United States
• Language: English

Related Subjects

40 CHEMISTRY
ABSORPTION SPECTRA
ALKANES
CHEMICAL REACTION KINETICS
CHEMICAL REACTIONS
ELECTRON TRANSFER
FLUORESCENCE
HOLES
ION-MOLECULE COLLISIONS
MAGNETIC RESONANCE
RADIOLYSIS
SQUALANE