15N– 13C Dipole Couplings in Smectic Mesophase of a Thermotropic Ionic Liquid

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¹⁵N– ¹³C Dipole Couplings in Smectic Mesophase of a Thermotropic Ionic Liquid. / Cifelli, M.; Domenici, V.; Chizhik, V. I. ; Dvinskikh, S. V. .

In: Applied Magnetic Resonance, Vol. 49, No. 6, 06.2018, p. 553–562.

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

BibTeX

@article{b94bc50d8f064333bbbe38ca31ec2890,

title = "15N– 13C Dipole Couplings in Smectic Mesophase of a Thermotropic Ionic Liquid",

abstract = "Unique combination of ionic conductivity and anisotropic physical properties in ionic liquid crystals leads to new dynamic properties exploited in modern technological applications. Structural and dynamics information at atomic level for molecules and ions in mesophases can be obtained by nuclear magnetic resonance (NMR) spectroscopy through the measurements of dipole–dipole spin couplings. While 13C– 1H and 15N– 1H dipolar NMR spectra can be routinely acquired in samples with natural isotopic abundance, recording 15N– 13C dipolar NMR spectra is challenging because of the unfavourable combination of two rare isotopes. In the present study, an approach to measure 15N– 13C dipole-dipole NMR spectra in static liquid crystalline samples with natural abundance is introduced. We demonstrate that well-resolved spectra can be recorded within 10 h of experimental time using a conventional NMR probe and a moderately strong magnetic field. The technique is applied to a thermotropic smectic mesophase formed by an ionic liquid with imidazolium-based organic cation. ",

keywords = "SOLID-STATE NMR, N-15 NMR, CRYSTALS, SPECTROSCOPY, IMIDAZOLE, SPECTRA, SHIFTS",

author = "M. Cifelli and V. Domenici and Chizhik, {V. I.} and Dvinskikh, {S. V.}",

note = "M. Cifelli , V. Domenici, V. I. Chizhik , S. V. Dvinskikh. 15N-13C dipole couplings in а smectic mesophase of a thermotropic ionic liquid. Applied Magnetic Resonance. 2018. Volume 49, Issue 6, pp 553–562. DOI: 10.1007/s00723-018-1000-7",

year = "2018",

month = jun,

doi = "10.1007/s00723-018-1000-7",

language = "English",

volume = "49",

pages = "553–562",

journal = "Applied Magnetic Resonance",

issn = "0937-9347",

publisher = "Springer Nature",

number = "6",

}

RIS

TY - JOUR

T1 - 15N– 13C Dipole Couplings in Smectic Mesophase of a Thermotropic Ionic Liquid

AU - Cifelli, M.

AU - Domenici, V.

AU - Chizhik, V. I.

AU - Dvinskikh, S. V.

N1 - M. Cifelli , V. Domenici, V. I. Chizhik , S. V. Dvinskikh. 15N-13C dipole couplings in а smectic mesophase of a thermotropic ionic liquid. Applied Magnetic Resonance. 2018. Volume 49, Issue 6, pp 553–562. DOI: 10.1007/s00723-018-1000-7

PY - 2018/6

Y1 - 2018/6

N2 - Unique combination of ionic conductivity and anisotropic physical properties in ionic liquid crystals leads to new dynamic properties exploited in modern technological applications. Structural and dynamics information at atomic level for molecules and ions in mesophases can be obtained by nuclear magnetic resonance (NMR) spectroscopy through the measurements of dipole–dipole spin couplings. While 13C– 1H and 15N– 1H dipolar NMR spectra can be routinely acquired in samples with natural isotopic abundance, recording 15N– 13C dipolar NMR spectra is challenging because of the unfavourable combination of two rare isotopes. In the present study, an approach to measure 15N– 13C dipole-dipole NMR spectra in static liquid crystalline samples with natural abundance is introduced. We demonstrate that well-resolved spectra can be recorded within 10 h of experimental time using a conventional NMR probe and a moderately strong magnetic field. The technique is applied to a thermotropic smectic mesophase formed by an ionic liquid with imidazolium-based organic cation.

AB - Unique combination of ionic conductivity and anisotropic physical properties in ionic liquid crystals leads to new dynamic properties exploited in modern technological applications. Structural and dynamics information at atomic level for molecules and ions in mesophases can be obtained by nuclear magnetic resonance (NMR) spectroscopy through the measurements of dipole–dipole spin couplings. While 13C– 1H and 15N– 1H dipolar NMR spectra can be routinely acquired in samples with natural isotopic abundance, recording 15N– 13C dipolar NMR spectra is challenging because of the unfavourable combination of two rare isotopes. In the present study, an approach to measure 15N– 13C dipole-dipole NMR spectra in static liquid crystalline samples with natural abundance is introduced. We demonstrate that well-resolved spectra can be recorded within 10 h of experimental time using a conventional NMR probe and a moderately strong magnetic field. The technique is applied to a thermotropic smectic mesophase formed by an ionic liquid with imidazolium-based organic cation.

KW - SOLID-STATE NMR

KW - N-15 NMR

KW - CRYSTALS

KW - SPECTROSCOPY

KW - IMIDAZOLE

KW - SPECTRA

KW - SHIFTS

UR - http://www.scopus.com/inward/record.url?scp=85045624732&partnerID=8YFLogxK

UR - http://www.mendeley.com/research/15n13c-dipole-couplings-smectic-mesophase-thermotropic-ionic-liquid

U2 - 10.1007/s00723-018-1000-7

DO - 10.1007/s00723-018-1000-7

M3 - Article

C2 - 29904238

VL - 49

SP - 553

EP - 562

JO - Applied Magnetic Resonance

JF - Applied Magnetic Resonance

SN - 0937-9347

IS - 6

ER -

ID: 35375687