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Nuclear Quadrupole Coupling Constants for N2O: Experiment and Theory

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Department of Chemistry, University of Alberta, Edmonton, Alberta, Canada, T6G 2G2
*E-mail: A.B., [email protected]; R.E.W., [email protected]
Cite this: J. Phys. Chem. A 2012, 116, 39, 9769–9776
Publication Date (Web):September 6, 2012
https://doi.org/10.1021/jp306213n
Copyright © 2012 American Chemical Society

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    Abstract

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    The nuclear quadrupole coupling constants (NQCCs) for the nitrogen and oxygen nuclei in N2O have been determined using a variety of computational methods (MP2, QCISD, DFT with B3LYP, PBE0, and B3PW91 functionals, CCSD, CCSD(T), CASSCF, and MRCI) combined with correlation-consistent basis sets. When compared to the available experimental determinations, the results demonstrate that only CCSD(T) and MRCI methods are capable of accurately predicting the NQCCs of the central and terminal nitrogen atoms. The spin-rotation and magnetic shielding tensors have also been determined and compared to experimental measurements where available. 14N and 17O NMR relaxation data for N2O in the gas phase and a variety of solvents is reported. The increase in the ratio of 14N spin–lattice relaxation times in solvent for the central and terminal nitrogens supports previous reports of the modification of the electric field gradients at these nuclei in van der Waals complexes. Ab initio computations for the linear FH···N2O complex confirm the large change in EFGs imposed by a single perturber.

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    Full references for refs 63−65. This material is available free of charge via the Internet at http://pubs.acs.org/.

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    Cited By

    This article is cited by 4 publications.

    1. Rajat K. Ghosh, Nicholas N. Kuzma, Stephen J. Kadlecek, Rahim R. Rizi. Versatile pulse sequence device to conserve hyperpolarization for NMR and MRI studies. Magnetic Resonance in Medicine 2016, 75 (4) , 1822-1830. https://doi.org/10.1002/mrm.25679
    2. Cynthia J. Jameson. Fundamental Intramolecular and Intermolecular Information from NMR in the Gas Phase. 2016, 1-51. https://doi.org/10.1039/9781782623816-00001
    3. Alexandra Faucher, Roderick E. Wasylishen. Obtaining Gas Phase NMR Parameters from Molecular Beam and High-resolution Microwave Spectroscopy. 2016, 52-94. https://doi.org/10.1039/9781782623816-00052
    4. Franca Castiglione, Andrea Mele, Guido Raos. 17O NMR. 2015, 143-193. https://doi.org/10.1016/bs.arnmr.2014.12.004

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