Abstract
The geometries of acetylene, ethylene, methane, ethane, ketene, allene, propyne, acetonitrile, ketenimine, aminoacetylene, hydroxyacetylene, and all the possible anions formed by removal of a proton from these molecules have been carefully optimized using nonempirical molecular orbital calculations employing the split-valence shell 4-31G basis set. These geometries have then been used in 6-31G basis set calculations. The computed order of gas phase acidity found for these molecules is hydroxyacetylene≳ketenimine≳ketene ≳acetonitrile≳aminoacetylene≳acetylene≳propyne≳allene ≳ethylene≳ethane≳methane.
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Dates
Type | When |
---|---|
Created | 22 years, 6 months ago (Feb. 12, 2003, 4:34 p.m.) |
Deposited | 1 year, 6 months ago (Feb. 9, 2024, 11:16 a.m.) |
Indexed | 1 year, 6 months ago (Feb. 11, 2024, 4:18 a.m.) |
Issued | 48 years, 1 month ago (July 15, 1977) |
Published | 48 years, 1 month ago (July 15, 1977) |
Published Print | 48 years, 1 month ago (July 15, 1977) |
@article{Hopkinson_1977, title={A nonempirical molecular orbital study on the acidity of the carbon–hydrogen bond}, volume={67}, ISSN={1089-7690}, url={http://dx.doi.org/10.1063/1.434907}, DOI={10.1063/1.434907}, number={2}, journal={The Journal of Chemical Physics}, publisher={AIP Publishing}, author={Hopkinson, Alan C. and Lien, Min H. and Yates, Keith and Mezey, Paul G. and Csizmadia, Imre G.}, year={1977}, month=jul, pages={517–523} }