𝔖 Bobbio Scriptorium
✦   LIBER   ✦

Nanosecond pulse radiolysis studies on coumarin 153 in cyclohexane solutions

✍ Scribed by K.I. Priyadarsini; D.B. Naik; P.N. Moorthy

Publisher
Elsevier Science
Year
1988
Tongue
English
Weight
378 KB
Volume
148
Category
Article
ISSN
0009-2614

No coin nor oath required. For personal study only.

✦ Synopsis

In the pulse radiolysis of oxygen-free cyclohexane solutions of the laser dye coumarin 153, two light-absorbing transient species have been observed, attributable to the solute radical cation (1 ,o 450 nm) and the triplet (broad, 500-700 nm). The latter was confirmed by energy transfer from pulse radiolytically generated biphenyl triplet.

πŸ“œ SIMILAR VOLUMES

One-electron oxidation and demetalation
One-electron oxidation and demetalation of metalloporphyrins and chlorophyll a in dichloroethane solutions as studied by pulse radiolysis
✍ Haim Levanon; P. Neta πŸ“‚ Article πŸ“… 1980 πŸ› Elsevier Science 🌐 English βš– 356 KB

Formation of cation radicals by pulse radiolysis of metalloporphyrins and chlorophyll a in 1,2dichIoroethane is reported. Demetalation of the metalloporphyrin by radiolytically produced HCl is also observed. Rate constants for demetalation of ZnTPP and Chl a are 1 .I X IO8 and = 3 X IO8 h!-' s-I\_ O

On the kinetics of polymer degradation i
On the kinetics of polymer degradation in solutionβ€”III: Pulse radiolysis studies on polyisobutene using the light-scattering detection method
✍ G. Beck; D. Lindenau; W. Schnabel πŸ“‚ Article πŸ“… 1975 πŸ› Elsevier Science 🌐 English βš– 458 KB

Polyisobutene (PIB) dissolved in saturated hydrocarbons was degraded by irradiation with 2 ,us impulses of 15 MeV electrons. The time dependence of the change of light-scattering intensity (LSI) (due to the decrease of molecular weight) was measured. The half life r I,\_,(LS) of the decrease of LSI