NMR Cross-Relaxation Study of Ultraslow Motion of the Domain Wall in Channel Inclusion Compound

A. M. Panich; J. H. Krieger; A. R. Semenov; G. N. Chekhova

doi:10.1515/zna-2002-6-718

NMR Cross-Relaxation Study of Ultraslow Motion of the Domain Wall in Channel Inclusion Compound

A. M. Panich, J. H. Krieger, A. R. Semenov, G. N. Chekhova

Department of Physics

Research output: Contribution to journal › Article › peer-review

2 Scopus citations

Abstract

We report on an NMR study of ultraslow motions in the channel thiourea-hexachloroethane inclusion compound, [2.95(NH₂)2CS]-C₂C1₆. Temperature dependent 1H NMR relaxation measurements of the powder thiourea-hexachloroethane at different resonance frequencies, from 23 to 55.5 MHz, have been carried out. Significant reduction of the spin-lattice relaxation time at 38 and 47 MHz is caused by the cross-relaxation of protons via the quadrupole chlorine nuclei. We show that the effective ¹H-³⁵Cl cross-relaxation observed in a powder sample is due to a slow mode process, when the molecules of the domain wall exhibit a correlated translational and rotational motion over the channel. Such propagation of the domain wall is confirmed by atom-atomic potential calculation. - Pacs: 76.60-k, 76.60.Es, 61.44.Fw, 61.66.Hq.

Original language	English
Pages (from-to)	395-398
Number of pages	4
Journal	Zeitschrift fur Naturforschung - Section A Journal of Physical Sciences
Volume	57
Issue number	6-7
DOIs	https://doi.org/10.1515/zna-2002-6-718
State	Published - 1 Jan 2002

Keywords

Cross-Relaxation
Domain Wall
Inclusion Compounds
NMR
Ultraslow Motion

ASJC Scopus subject areas

Mathematical Physics
General Physics and Astronomy
Physical and Theoretical Chemistry

Access to Document

10.1515/zna-2002-6-718

Cite this

@article{0f89c1c551b341f684ef17835bab4e42,

title = "NMR Cross-Relaxation Study of Ultraslow Motion of the Domain Wall in Channel Inclusion Compound",

abstract = "We report on an NMR study of ultraslow motions in the channel thiourea-hexachloroethane inclusion compound, [2.95(NH2)2CS]-C2C16. Temperature dependent 1H NMR relaxation measurements of the powder thiourea-hexachloroethane at different resonance frequencies, from 23 to 55.5 MHz, have been carried out. Significant reduction of the spin-lattice relaxation time at 38 and 47 MHz is caused by the cross-relaxation of protons via the quadrupole chlorine nuclei. We show that the effective 1H-35Cl cross-relaxation observed in a powder sample is due to a slow mode process, when the molecules of the domain wall exhibit a correlated translational and rotational motion over the channel. Such propagation of the domain wall is confirmed by atom-atomic potential calculation. - Pacs: 76.60-k, 76.60.Es, 61.44.Fw, 61.66.Hq.",

keywords = "Cross-Relaxation, Domain Wall, Inclusion Compounds, NMR, Ultraslow Motion",

author = "Panich, {A. M.} and Krieger, {J. H.} and Semenov, {A. R.} and Chekhova, {G. N.}",

year = "2002",

month = jan,

day = "1",

doi = "10.1515/zna-2002-6-718",

language = "English",

volume = "57",

pages = "395--398",

journal = "Zeitschrift fur Naturforschung - Section A Journal of Physical Sciences",

issn = "0932-0784",

publisher = "Walter de Gruyter GmbH",

number = "6-7",

}

TY - JOUR

T1 - NMR Cross-Relaxation Study of Ultraslow Motion of the Domain Wall in Channel Inclusion Compound

AU - Panich, A. M.

AU - Krieger, J. H.

AU - Semenov, A. R.

AU - Chekhova, G. N.

PY - 2002/1/1

Y1 - 2002/1/1

N2 - We report on an NMR study of ultraslow motions in the channel thiourea-hexachloroethane inclusion compound, [2.95(NH2)2CS]-C2C16. Temperature dependent 1H NMR relaxation measurements of the powder thiourea-hexachloroethane at different resonance frequencies, from 23 to 55.5 MHz, have been carried out. Significant reduction of the spin-lattice relaxation time at 38 and 47 MHz is caused by the cross-relaxation of protons via the quadrupole chlorine nuclei. We show that the effective 1H-35Cl cross-relaxation observed in a powder sample is due to a slow mode process, when the molecules of the domain wall exhibit a correlated translational and rotational motion over the channel. Such propagation of the domain wall is confirmed by atom-atomic potential calculation. - Pacs: 76.60-k, 76.60.Es, 61.44.Fw, 61.66.Hq.

AB - We report on an NMR study of ultraslow motions in the channel thiourea-hexachloroethane inclusion compound, [2.95(NH2)2CS]-C2C16. Temperature dependent 1H NMR relaxation measurements of the powder thiourea-hexachloroethane at different resonance frequencies, from 23 to 55.5 MHz, have been carried out. Significant reduction of the spin-lattice relaxation time at 38 and 47 MHz is caused by the cross-relaxation of protons via the quadrupole chlorine nuclei. We show that the effective 1H-35Cl cross-relaxation observed in a powder sample is due to a slow mode process, when the molecules of the domain wall exhibit a correlated translational and rotational motion over the channel. Such propagation of the domain wall is confirmed by atom-atomic potential calculation. - Pacs: 76.60-k, 76.60.Es, 61.44.Fw, 61.66.Hq.

KW - Cross-Relaxation

KW - Domain Wall

KW - Inclusion Compounds

KW - NMR

KW - Ultraslow Motion

UR - http://www.scopus.com/inward/record.url?scp=0036619046&partnerID=8YFLogxK

U2 - 10.1515/zna-2002-6-718

DO - 10.1515/zna-2002-6-718

M3 - Article

AN - SCOPUS:0036619046

SN - 0932-0784

VL - 57

SP - 395

EP - 398

JO - Zeitschrift fur Naturforschung - Section A Journal of Physical Sciences

JF - Zeitschrift fur Naturforschung - Section A Journal of Physical Sciences

IS - 6-7

ER -

NMR Cross-Relaxation Study of Ultraslow Motion of the Domain Wall in Channel Inclusion Compound

Abstract

Keywords

ASJC Scopus subject areas

Access to Document

Other files and links

Fingerprint

Cite this