Investigation on the gas-phase decomposition of trichlorfon by GC-MS and theoretical calculation

2Citations
Citations of this article
5Readers
Mendeley users who have this article in their library.

Abstract

The gas phase pyrolysis of trichlorfon was investigated by the on-line gas chromatography - mass spectrometry (GC-MS) pyrolysis and theoretical calculations. Two reaction channels were proposed in the pyrolytic reaction, by analyzing the detected pyrolytic products in the total ion chromatography, including 2,2,2-trichloroacetaldehyde, dimethyl phosphite, and dichlorvos. Theoretical calculations showed that there is an intramolecular hydrogen bond between the hydroxyl group and the phosphate O atom in trichlorfon, through which the hydroxyl H atom can be easily transferred to phosphate O atom to trigger two pyrolytic channels. In path-a, migration of H atom results in direct decomposition of trichlorfon to give 2,2,2-trichloroacetaldehyde and dimethyl phosphite in one step. In path-b, migration of H atom in trichlorfon is combined with formation of the O-P bond to give an intermediate, followed by HCl elimination to afford dichlorvos. Path-a is kinetically more favorable than path-b, which is consistent with the GC-MS results.

Cite

CITATION STYLE

APA

Jiang, K., Zhang, N., Zhang, H., Wang, J., & Qian, M. (2015). Investigation on the gas-phase decomposition of trichlorfon by GC-MS and theoretical calculation. PLoS ONE, 10(4). https://doi.org/10.1371/journal.pone.0121389

Register to see more suggestions

Mendeley helps you to discover research relevant for your work.

Already have an account?

Save time finding and organizing research with Mendeley

Sign up for free