Abstract
Ab initio LCAO–MO–SCF calculation for the dimeric H2O system is carried out with a minimal Slater basis set with exponents optimized for H2O. The most stable linear dimer is found to have an O···H distance of 1.80 Å, with the proton-acceptor molecule perpendicular to the donor molecule and bent by 54° trans with respect to the end OH bond of the donor. The stabilization energy calculated is about 6.55 kcal/mole. The changes in the length and the stretching force constant of the donor O–H bond are also discussed. A population analysis shows that the stabilization at a larger O···H distance (>2.3 Å) is essentially electrostatic, while at a smaller distance, the charge transfer becomes increasingly important.
References
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Dates
Type | When |
---|---|
Created | 21 years, 6 months ago (Feb. 6, 2004, 2:23 p.m.) |
Deposited | 1 year, 6 months ago (Feb. 9, 2024, 1:28 a.m.) |
Indexed | 1 year ago (Aug. 2, 2024, 6:31 a.m.) |
Issued | 55 years, 7 months ago (Feb. 1, 1970) |
Published | 55 years, 7 months ago (Feb. 1, 1970) |
Published Print | 55 years, 7 months ago (Feb. 1, 1970) |
@article{Morokuma_1970, title={Molecular Orbital Studies of Hydrogen Bonds: Dimeric H2O with the Slater Minimal Basis Set}, volume={52}, ISSN={1089-7690}, url={http://dx.doi.org/10.1063/1.1673129}, DOI={10.1063/1.1673129}, number={3}, journal={The Journal of Chemical Physics}, publisher={AIP Publishing}, author={Morokuma, Keiji and Winick, Jeremy R.}, year={1970}, month=feb, pages={1301–1306} }