Gamma-radiolysis of the system ferric hexafluoroacetylacetonate-toluene

Public Deposited
Resource Type
  • The disappearance of tris(2,4-pentanedione)Iron(Hl), (FAA), tris(l,l,l-trifluoro-2,4-pentanedione)Iron(III), (TFFAA), and tris(1,1,1,5,5,5-hexafluoro-2,4-pentanedione) Iron(lII), (HFFAA) induced by gamma rays in dry, air-free toluene solution has been studied; particular emphasis has been placed on the system HFFAA-toluene. HFFAA is reduced radiolytically with G(-chelate) = 1.00, the reduction process apparently involving electron transferto the chelate from some species other than free radicals.TFFAA and FAA are also reduced under the same conditions but at increasingly slower rates; the inequality G(-FAA) < G(-TFFAA) < G(-HFFAA) is explained on the basis of an electron-withdrawing effect by the ligand trifluoromethyl groups.It was found that G(H2) = 0.13 ±0.03 for toluene in the presence and absence of HFFAA. The G(CH4) = 0.008 is slightly increased in the presence of HFFAA. In HFFAA-toluene solutions, G(dibenzyl) = 0.307 ±0.026 and intoluene alone, G(dibenzyl) = 0.102 ±0.019. An explanation is offered to account for this increase and for the nature of the species involved in reduction of HFFAA. Activation energies are obtained for processes responsible for the observed radiolysis products.

Thesis Degree Level
Thesis Degree Name
Thesis Degree Discipline
Access Rights
Rights Notes
  • Copyright © 1965 the author(s). Theses may be used for non-commercial research, educational, or related academic purposes only. Such uses include personal study, research, scholarship, and teaching. Theses may only be shared by linking to Carleton University Institutional Repository and no part may be used without proper attribution to the author. No part may be used for commercial purposes directly or indirectly via a for-profit platform; no adaptation or derivative works are permitted without consent from the copyright owner.
Date Created
  • 1965


In Collection: