Reduction of Mercury(II) by the Carbon Dioxide Radical Anion: A Theoretical and Experimental Investigation

被引：26

作者：

Berkovic, Andrea M. ^{[1
,2
]}

Gonzalez, Monica C. ^{[2
]}

Russo, Nino ^{[3
]}

Michelini, Maria del Carmen ^{[3
]}

Pis Diez, Reinaldo ^{[1
]}

Martire, Daniel O. ^{[2
]}

机构：

[1] Univ Nacl La Plata, Fac Ciencias Exactas, CONICET, Ctr Quim Inorgan CEQUINOR, RA-1900 La Plata, Buenos Aires, Argentina

[2] Univ Nacl La Plata, Fac Ciencias Exactas, Inst Invest Fis Quim Teor & Aplicadas INIFTA, RA-1900 La Plata, Buenos Aires, Argentina

[3] Univ Calabria, Dipartimento Chim, I-87030 Arcavacata Di Rende, Italy

来源：

JOURNAL OF PHYSICAL CHEMISTRY A | 2010年 / 114卷 / 49期

关键词：

AQUEOUS-SOLUTIONS; HYDRATED ELECTRONS; PULSE-RADIOLYSIS; BASIS-SETS; H-ATOMS; KINETICS; DEGRADATION; MECHANISM; EXCHANGE; GROUP-11;

D O I：

10.1021/jp106035m

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

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-.

引用

页码：12845 / 12850

页数：6

共 36 条

[1] Kinetic study of the reactions of chlorine atoms and Cl2•- radical anions in aqueous solutions.: 1.: Reaction with benzene [J].