Iron, water, and carbon tetrachloride: A theoretical study

Bojana Ginovska Pangovska, Donald M. Camaioni, Michel Dupuis

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

Carbon tetrachloride (CCl4) contaminates the ground water in many waste sites. There is interest in using Fe(0) nanoparticles to accelerate degradation to less harmful products (e.g. formate over chloroform). In our previous work, we modeled the reaction of atomic Fe with CCl4 and found low-barrier pathways leading to thermodynamically stable organometallic complexes. Here we report on our investigation of the role of water molecules in the reaction, starting with the (Fe + H2O + CCl4) system. We used DFT and highly correlated theories to characterize stable structures and transition states along the pathways and to explore the interaction of these species. Our DFT calculations raised the prospect of a relatively low barrier (< 5 kcal/mol) to reaction of CCl4 with HFeOH. However, highly electron correlated calculations yielded a much higher barrier to reaction, consistent with the need to unpair d-electrons in forming an HFeClOH •CCl3 intermediate.

Original languageEnglish
Title of host publicationAmerican Chemical Society - 238th National Meeting and Exposition, ACS 2009, Abstracts of Scientific Papers
Publication statusPublished - Dec 1 2009
Event238th National Meeting and Exposition of the American Chemical Society, ACS 2009 - Washington, DC, United States
Duration: Aug 16 2009Aug 20 2009

Publication series

NameACS National Meeting Book of Abstracts
ISSN (Print)0065-7727

Other

Other238th National Meeting and Exposition of the American Chemical Society, ACS 2009
CountryUnited States
CityWashington, DC
Period8/16/098/20/09

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ASJC Scopus subject areas

  • Chemistry(all)
  • Chemical Engineering(all)

Cite this

Pangovska, B. G., Camaioni, D. M., & Dupuis, M. (2009). Iron, water, and carbon tetrachloride: A theoretical study. In American Chemical Society - 238th National Meeting and Exposition, ACS 2009, Abstracts of Scientific Papers (ACS National Meeting Book of Abstracts).