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Paramagnetic Cross-Correlation Effects in the Longitudinal Proton Relaxation ofcis-Chloroacrylic Acid in the Presence of Nickel(II) Ions

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Paramagnetic Cross-Correlation Effects in the Longitudinal Proton Relaxation ofcis-Chloroacrylic Acid in the Presence of Nickel(II) Ions. / Mäler, Lena; Mulder, F. A A; Kowalewski, Jozef.

In: Journal of Magnetic Resonance, Vol. 117, No. 2, 01.12.1995, p. 220-227.

Research output: Contribution to journal/Conference contribution in journal/Contribution to newspaperJournal articleResearchpeer-review

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Mäler, Lena ; Mulder, F. A A ; Kowalewski, Jozef. / Paramagnetic Cross-Correlation Effects in the Longitudinal Proton Relaxation ofcis-Chloroacrylic Acid in the Presence of Nickel(II) Ions. In: Journal of Magnetic Resonance. 1995 ; Vol. 117, No. 2. pp. 220-227.

Bibtex

@article{2ec6ce61ea56437e9f2cdae62c16c662,
title = "Paramagnetic Cross-Correlation Effects in the Longitudinal Proton Relaxation ofcis-Chloroacrylic Acid in the Presence of Nickel(II) Ions",
abstract = "Proton longitudinal relaxation data forcis-chloroacrylic acid in solution are reported. Experiments involving the two olefinic protons constituting an isolated AX spin system have been performed. The relaxation matrices for the two spins with and without the addition of Ni2+have been obtained by two-dimensional exchange spectroscopy together with transfer-mode analysis. The multiplet asymmetries in the relaxation for the diamagnetic sample are interpreted as interference effects between dipole-dipole and chemical-shift anisotropy interactions. The signs and magnitudes of the terms corresponding to the two different protons are different, a fact which can be attributed to differences in the shielding tensors for the two protons. For one of the protons, there is a measurable difference in the cross-correlation term when adding NiCl2. This effect is due to cross correlation between nuclear dipole-dipole interaction and paramagnetic Curie spin relaxation.",
author = "Lena M{\"a}ler and Mulder, {F. A A} and Jozef Kowalewski",
year = "1995",
month = dec,
day = "1",
doi = "10.1006/jmra.1995.0734",
language = "English",
volume = "117",
pages = "220--227",
journal = "Journal of Magnetic Resonance",
issn = "1090-7807",
publisher = "Elsevier",
number = "2",

}

RIS

TY - JOUR

T1 - Paramagnetic Cross-Correlation Effects in the Longitudinal Proton Relaxation ofcis-Chloroacrylic Acid in the Presence of Nickel(II) Ions

AU - Mäler, Lena

AU - Mulder, F. A A

AU - Kowalewski, Jozef

PY - 1995/12/1

Y1 - 1995/12/1

N2 - Proton longitudinal relaxation data forcis-chloroacrylic acid in solution are reported. Experiments involving the two olefinic protons constituting an isolated AX spin system have been performed. The relaxation matrices for the two spins with and without the addition of Ni2+have been obtained by two-dimensional exchange spectroscopy together with transfer-mode analysis. The multiplet asymmetries in the relaxation for the diamagnetic sample are interpreted as interference effects between dipole-dipole and chemical-shift anisotropy interactions. The signs and magnitudes of the terms corresponding to the two different protons are different, a fact which can be attributed to differences in the shielding tensors for the two protons. For one of the protons, there is a measurable difference in the cross-correlation term when adding NiCl2. This effect is due to cross correlation between nuclear dipole-dipole interaction and paramagnetic Curie spin relaxation.

AB - Proton longitudinal relaxation data forcis-chloroacrylic acid in solution are reported. Experiments involving the two olefinic protons constituting an isolated AX spin system have been performed. The relaxation matrices for the two spins with and without the addition of Ni2+have been obtained by two-dimensional exchange spectroscopy together with transfer-mode analysis. The multiplet asymmetries in the relaxation for the diamagnetic sample are interpreted as interference effects between dipole-dipole and chemical-shift anisotropy interactions. The signs and magnitudes of the terms corresponding to the two different protons are different, a fact which can be attributed to differences in the shielding tensors for the two protons. For one of the protons, there is a measurable difference in the cross-correlation term when adding NiCl2. This effect is due to cross correlation between nuclear dipole-dipole interaction and paramagnetic Curie spin relaxation.

U2 - 10.1006/jmra.1995.0734

DO - 10.1006/jmra.1995.0734

M3 - Journal article

AN - SCOPUS:58149363082

VL - 117

SP - 220

EP - 227

JO - Journal of Magnetic Resonance

JF - Journal of Magnetic Resonance

SN - 1090-7807

IS - 2

ER -