Electric quadrupole polarizabilities of nuclear magnetic shielding in some small molecules.

Electric quadrupole polarizabilities of nuclear magnetic shielding in some small molecules. Research Abstract Details 

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Electric quadrupole polarizabilities of nuclear magnetic shielding in some small molecules. Abstract Text:

M B Ferraro,M C Caputo,G I Pagola,P Lazzeretti,

Computational procedures, based on (i) the Ramsey common origin approach and (ii) the continuous transformation of the origin of the quantum mechanical current density-diamagnetic zero (CTOCD-DZ), were applied at the Hartree-Fock level to determine electric quadrupole polarizabilities of nuclear magnetic shielding for molecules in the presence of a nonuniform electric field with a uniform gradient. The quadrupole polarizabilities depend on the origin of the coordinate system, but values of the magnetic field induced at a reference nucleus, determined via the CTOCD-DZ approach, are origin independent for any calculations relying on the algebraic approximation, irrespective of size and quality of the (gaugeless) basis set employed. On the other hand, theoretical estimates of the induced magnetic field obtained by single-origin methods are translationally invariant only in the limit of complete basis sets. Calculations of electric quadrupole polarizabilities of nuclear magnetic shielding are reported for H(2), HF, H(2)O, NH(3), and CH(4) molecules.

Electric quadrupole polarizabilities of nuclear magnetic shielding in some small molecules. Publishing Authors By Initials

MB Ferraro,MC Caputo,GI Pagola,P Lazzeretti,

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Electric quadrupole polarizabilities of nuclear magnetic shielding in some small molecules. Journal Published:

PUBLICATION TYPE: Journal Article

Journal: The Journal of chemical physics

VOLUME: 128

Page Numbers: 044117

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ISSN: 0021-9606

DAY: 28

MONTH: Jan

YEAR: 2008

Electric quadrupole polarizabilities of nuclear magnetic shielding in some small molecules. Information

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LANGUAGE: eng

NlmUniqueID: 375360

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AFFILIATION: Departamento de Física, Facultad de Ciencias Exactas y Naturales, Universidad de Buenos Aires, Ciudad Universitaria, Pab. I, 1428 Buenos Aires, Argentina.

Country: United States

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MEDLINETA: J Chem Phys

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