A kinetic and thermochemical database for organic sulfur and oxygen compounds
Name
Green_A kinetic and.pdf
Size
1.75 MB
Format
Adobe PDF
Checksum (MD5)
844f2b16a7a93c6f5e7410dff7a146eb
Author(s)
Class, Caleb A.
Aguilera-Iparraguirre, Jorge
Green, William H.
Date Issued
April 2015
Journal
Physical Chemistry Chemical Physics
Publisher
Royal Society of Chemistry
Citation
Class, Caleb A., Jorge Aguilera-Iparraguirre, and William H. Green. “A Kinetic and Thermochemical Database for Organic Sulfur and Oxygen Compounds.” Phys. Chem. Chem. Phys. 17, no. 20 (2015): 13625–13639.
Version
Author's final manuscript
Abstract
Potential energy surfaces and reaction kinetics were calculated for 40 reactions involving sulfur and oxygen. This includes 11 H[subscript 2]O addition, 8 H[subscript 2]S addition, 11 hydrogen abstraction, 7 beta scission, and 3 elementary tautomerization reactions, which are potentially relevant in the combustion and desulfurization of sulfur compounds found in various fuel sources. Geometry optimizations and frequencies were calculated for reactants and transition states using B3LYP/CBSB7, and potential energies were calculated using CBS-QB3 and CCSD(T)-F12a/VTZ-F12. Rate coefficients were calculated using conventional transition state theory, with corrections for internal rotations and tunneling. Additionally, thermochemical parameters were calculated for each of the compounds involved in these reactions. With few exceptions, rate parameters calculated using the two potential energy methods agreed reasonably, with calculated activation energies differing by less than 5 kJ mol[superscript −1]. The computed rate coefficients and thermochemical parameters are expected to be useful for kinetic modeling.
MIT Department
Massachusetts Institute of Technology. Department of Chemical Engineering
Terms of Use
Creative Commons Attribution-Noncommercial-Share Alike
Persistent DSpace Link
DOI of Published Version
https://doi.org/10.1039/c4cp05631k
