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External Random Field Model for Intermolecular Spin Interactions : Accuracy Evaluation for the Coupled Relaxation of Two-Spin Molecules in a Pulse Responsive Solvent. / Khazanovich, Teodor N.; Skrynnikov, Nikolai R.; Skrynnikov, Nikolai R.

In: Journal of the Physical Society of Japan, Vol. 64, No. 2, 02.1995, p. 631-635.

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Khazanovich, Teodor N. ; Skrynnikov, Nikolai R. ; Skrynnikov, Nikolai R. / External Random Field Model for Intermolecular Spin Interactions : Accuracy Evaluation for the Coupled Relaxation of Two-Spin Molecules in a Pulse Responsive Solvent. In: Journal of the Physical Society of Japan. 1995 ; Vol. 64, No. 2. pp. 631-635.

BibTeX

@article{1677e212f0964c9cb809dbc63a1bc35f,
title = "External Random Field Model for Intermolecular Spin Interactions: Accuracy Evaluation for the Coupled Relaxation of Two-Spin Molecules in a Pulse Responsive Solvent",
abstract = "The errors that may arise from the use of the external random field (ERF) approximation in the spin relaxation theory are estimated for the case of a binary solution. The experiments by M. Ishiwata and Y. Ishii (J. Phys. Soc. Jpn. 60 (1991) 1379, ibid. 60 (1991) 1743) have been analyzed. Coupled spin-lattice relaxation of solute molecules has been measured in the experiments where the solvent spin system was exposed to the effect of nonselective pulses. Going beyond the ERF model we assume that the behavior of a solvent spin system can be characterized by a single polarization. This approach involves the consideration of coupled solvent-solute relaxation (CSSR). It has been found that the parameters of molecular motion, extracted with the CSSR approach, differ noticeably from those obtained within the scope of the ERF model. We conclude that if the solvent spin system is perturbed during the experiment and its spin-lattice relaxation time is not too short, the CSSR approach should be recommended for quantitative study of the motion of solute molecules.",
keywords = "coupled spin-lattice relaxation, cross-correlation, intermolecular dipole-dipole interactions",
author = "Khazanovich, {Teodor N.} and Skrynnikov, {Nikolai R.} and Skrynnikov, {Nikolai R.}",
year = "1995",
month = feb,
doi = "10.1143/JPSJ.64.631",
language = "English",
volume = "64",
pages = "631--635",
journal = "Journal of the Physical Society of Japan",
issn = "0031-9015",
publisher = "Physical Society of Japan",
number = "2",

}

RIS

TY - JOUR

T1 - External Random Field Model for Intermolecular Spin Interactions

T2 - Accuracy Evaluation for the Coupled Relaxation of Two-Spin Molecules in a Pulse Responsive Solvent

AU - Khazanovich, Teodor N.

AU - Skrynnikov, Nikolai R.

AU - Skrynnikov, Nikolai R.

PY - 1995/2

Y1 - 1995/2

N2 - The errors that may arise from the use of the external random field (ERF) approximation in the spin relaxation theory are estimated for the case of a binary solution. The experiments by M. Ishiwata and Y. Ishii (J. Phys. Soc. Jpn. 60 (1991) 1379, ibid. 60 (1991) 1743) have been analyzed. Coupled spin-lattice relaxation of solute molecules has been measured in the experiments where the solvent spin system was exposed to the effect of nonselective pulses. Going beyond the ERF model we assume that the behavior of a solvent spin system can be characterized by a single polarization. This approach involves the consideration of coupled solvent-solute relaxation (CSSR). It has been found that the parameters of molecular motion, extracted with the CSSR approach, differ noticeably from those obtained within the scope of the ERF model. We conclude that if the solvent spin system is perturbed during the experiment and its spin-lattice relaxation time is not too short, the CSSR approach should be recommended for quantitative study of the motion of solute molecules.

AB - The errors that may arise from the use of the external random field (ERF) approximation in the spin relaxation theory are estimated for the case of a binary solution. The experiments by M. Ishiwata and Y. Ishii (J. Phys. Soc. Jpn. 60 (1991) 1379, ibid. 60 (1991) 1743) have been analyzed. Coupled spin-lattice relaxation of solute molecules has been measured in the experiments where the solvent spin system was exposed to the effect of nonselective pulses. Going beyond the ERF model we assume that the behavior of a solvent spin system can be characterized by a single polarization. This approach involves the consideration of coupled solvent-solute relaxation (CSSR). It has been found that the parameters of molecular motion, extracted with the CSSR approach, differ noticeably from those obtained within the scope of the ERF model. We conclude that if the solvent spin system is perturbed during the experiment and its spin-lattice relaxation time is not too short, the CSSR approach should be recommended for quantitative study of the motion of solute molecules.

KW - coupled spin-lattice relaxation

KW - cross-correlation

KW - intermolecular dipole-dipole interactions

UR - http://www.scopus.com/inward/record.url?scp=84996304114&partnerID=8YFLogxK

U2 - 10.1143/JPSJ.64.631

DO - 10.1143/JPSJ.64.631

M3 - Article

AN - SCOPUS:84996304114

VL - 64

SP - 631

EP - 635

JO - Journal of the Physical Society of Japan

JF - Journal of the Physical Society of Japan

SN - 0031-9015

IS - 2

ER -

ID: 87883910