Abstract
Nuclear magnetic shielding tensor functions for H2, HF, N2, CO, and F2 are calculated at the coupled-cluster singles and doubles level augmented by a perturbative correction for triple excitations [CCSD(T)]. The shielding constants for the lowest rovibrational states of these diatomics are obtained by solving the rovibrational Schrödinger equation with the finite-element method. For H, C, and F, absolute scales for the nuclear magnetic shielding constants have been obtained by combining computed diamagnetic shieldings with paramagnetic contributions deduced from measured spin-rotation constants and calculated rovibrational corrections. Since the experimental spin-rotation constants for N2 and CO are inaccurate, shielding scales for N and O based on coupled cluster calculations are probably the most accurate available.
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Dates
Type | When |
---|---|
Created | 23 years, 1 month ago (July 26, 2002, 8:10 a.m.) |
Deposited | 1 year, 6 months ago (Feb. 11, 2024, 1:09 a.m.) |
Indexed | 1 week, 4 days ago (Aug. 27, 2025, 11:44 a.m.) |
Issued | 28 years, 8 months ago (Dec. 22, 1996) |
Published | 28 years, 8 months ago (Dec. 22, 1996) |
Published Print | 28 years, 8 months ago (Dec. 22, 1996) |
@article{Sundholm_1996, title={Rovibrationally averaged nuclear magnetic shielding tensors calculated at the coupled-cluster level}, volume={105}, ISSN={1089-7690}, url={http://dx.doi.org/10.1063/1.472905}, DOI={10.1063/1.472905}, number={24}, journal={The Journal of Chemical Physics}, publisher={AIP Publishing}, author={Sundholm, Dage and Gauss, Jürgen and Schäfer, Ansgar}, year={1996}, month=dec, pages={11051–11059} }