Next Article in Journal
Molecular Characterization and Comparative Sequence Analysis of Defense-Related Gene, Oryza rufipogon Receptor-Like Protein Kinase 1
Previous Article in Journal
The Immunomodulatory and Neuroprotective Effects of Mesenchymal Stem Cells (MSCs) in Experimental Autoimmune Encephalomyelitis (EAE): A Model of Multiple Sclerosis (MS)
Article Menu

Export Article

Open AccessArticle
Int. J. Mol. Sci. 2012, 13(7), 9332-9342; doi:10.3390/ijms13079332

A Theoretical Study on Reductive Debromination of Polybrominated Diphenyl Ethers

Guizhou Provincial Key Laboratory for Information System of Mountainous Areas and Protection of Ecological Environment, Guizhou Normal University, Guiyang 550001, China
Department of Civil and Environmental Engineering, Stanford University, Stanford, CA 94305, USA
Department of Applied Chemistry, College of Chemistry and Molecular Engineering, Peking University, Beijing 100871, China
Author to whom correspondence should be addressed.
Received: 24 May 2012 / Revised: 8 July 2012 / Accepted: 18 July 2012 / Published: 24 July 2012
(This article belongs to the Section Physical Chemistry, Theoretical and Computational Chemistry)
View Full-Text   |   Download PDF [474 KB, uploaded 19 June 2014]   |  


Recent progress has been made in the reductive debromination of polybrominated diphenyl ethers (PBDEs) by nanoscale zero-valent iron (nZVI). To better understand the mechanism of this reaction, seven selected BDE congeners and their anions were investigated at the density functional theory (DFT) level using four different methods, including B3LYP/6-31G(d), B3LYP/6-31+G(d), B3LYP/6-31G(d,p) and B3LYP/6-311G(d,p). The cleaved C–Br bonds observed in the equilibrium structures of anionic PBDEs were adopted as the probe of the susceptible debromination position of PBDEs in the presence of nZVI, and the proposed major reaction pathways based on our calculations can satisfactorily conform to the reported experimental results. The debromination preference is theoretically evaluated as meta-Br > ortho-Br > para-Br. In addition, both the calculated frontier orbital energies and adiabatic electronic affinities were found to be highly related to their experimental reductive debromination rate constants. The highest linear regression coefficient was observed in the case using the energy of lowest unoccupied molecular orbital as the molecular descriptor obtained from B3LYP/6-31G(d) (R2 = 0.961, n = 7) or B3LYP/6-31G(d,p) (R2 = 0.961, n = 7). The results clearly showed the evidence of an electron transfer mechanism associated with this reductive debromination reaction. View Full-Text
Keywords: polybrominated diphenyl ethers; reductive debromination; radical anion; density functional theory; electron transfer polybrominated diphenyl ethers; reductive debromination; radical anion; density functional theory; electron transfer

This is an open access article distributed under the Creative Commons Attribution License (CC BY 3.0).

Supplementary material

Scifeed alert for new publications

Never miss any articles matching your research from any publisher
  • Get alerts for new papers matching your research
  • Find out the new papers from selected authors
  • Updated daily for 49'000+ journals and 6000+ publishers
  • Define your Scifeed now

SciFeed Share & Cite This Article

MDPI and ACS Style

Hu, J.-W.; Zhuang, Y.; Luo, J.; Wei, X.-H.; Huang, X.-F. A Theoretical Study on Reductive Debromination of Polybrominated Diphenyl Ethers. Int. J. Mol. Sci. 2012, 13, 9332-9342.

Show more citation formats Show less citations formats

Related Articles

Article Metrics

Article Access Statistics



[Return to top]
Int. J. Mol. Sci. EISSN 1422-0067 Published by MDPI AG, Basel, Switzerland RSS E-Mail Table of Contents Alert
Back to Top