期刊
JOURNAL OF PHYSICAL CHEMISTRY A
卷 114, 期 49, 页码 12845-12850出版社
AMER CHEMICAL SOC
DOI: 10.1021/jp106035m
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资金
- Agencia Nacional de Promocion Cientifica y Tecnologica, (ANPCyT, Argentina) [00308]
- Italian Ministry of Foreign Affairs
- Universita della Calabria
- DAAD
- CONICET (Argentina)
The laser flash photolysis technique (lambda(exc) = 266 nm) was used to investigate the mechanism of the HgCl2 reduction mediated by CO2 center dot- radicals in the temperature range 291.7-308.0 K. For this purpose, the CO2 center dot- radicals were generated by scavenging of sulfate radicals by formic acid. The absorbance of the reduced radical of methyl viologen, a competitive scavenger of CO2 center dot-, was monitored at 390 nm. Moreover, theoretical calculations, including solvent effects, were also performed within the framework of the density functional theory for various chemical species of Hg(I) and Hg(II) to aid in the modeling of the reaction of reduction of HgCl2 by CO2 center dot-.
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