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CP MAS Kinetics Study of Ionic Liquids Confined in Mesoporous Silica : Convergence of Non-Classical and Classical Spin Coupling Models. / Klimavicius, Vytautas; Dagys, Laurynas; Chizhik, Vladimir; Balevicius, Vytautas.

In: Applied Magnetic Resonance, Vol. 48, No. 7, 01.07.2017, p. 673-685.

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

Harvard

Klimavicius, V, Dagys, L, Chizhik, V & Balevicius, V 2017, 'CP MAS Kinetics Study of Ionic Liquids Confined in Mesoporous Silica: Convergence of Non-Classical and Classical Spin Coupling Models', Applied Magnetic Resonance, vol. 48, no. 7, pp. 673-685. https://doi.org/DOI 10.1007/s00723-017-0891-z, https://doi.org/10.1007/s00723-017-0891-z

APA

Klimavicius, V., Dagys, L., Chizhik, V., & Balevicius, V. (2017). CP MAS Kinetics Study of Ionic Liquids Confined in Mesoporous Silica: Convergence of Non-Classical and Classical Spin Coupling Models. Applied Magnetic Resonance, 48(7), 673-685. https://doi.org/DOI 10.1007/s00723-017-0891-z, https://doi.org/10.1007/s00723-017-0891-z

Vancouver

Klimavicius V, Dagys L, Chizhik V, Balevicius V. CP MAS Kinetics Study of Ionic Liquids Confined in Mesoporous Silica: Convergence of Non-Classical and Classical Spin Coupling Models. Applied Magnetic Resonance. 2017 Jul 1;48(7):673-685. https://doi.org/DOI 10.1007/s00723-017-0891-z, https://doi.org/10.1007/s00723-017-0891-z

Author

Klimavicius, Vytautas ; Dagys, Laurynas ; Chizhik, Vladimir ; Balevicius, Vytautas. / CP MAS Kinetics Study of Ionic Liquids Confined in Mesoporous Silica : Convergence of Non-Classical and Classical Spin Coupling Models. In: Applied Magnetic Resonance. 2017 ; Vol. 48, No. 7. pp. 673-685.

BibTeX

@article{bf8ca30078dd4d52bb3e11f005b8fff5,
title = "CP MAS Kinetics Study of Ionic Liquids Confined in Mesoporous Silica: Convergence of Non-Classical and Classical Spin Coupling Models",
abstract = "The high data point density measurements of 1H→11B cross-polarization (CP) kinetics upon magic-angle spinning (MAS) of [bmim][BF4] confined in mesoporous SBA-15 and MCM-41 were carried out. The complex shaped 11B CP MAS signals were observed in both silica and decomposed into two Lorentz components. This points towards the possibility of bimodal distribution of [bmim][BF4] in the studied confinements. The convergence of classical and non-classical spin coupling models was deduced processing CP kinetic curves. A good fit of the theoretical curves to the experimental data was achieved using both models without any non-random deviations between theory and experiment to appear. The convergence of spin coupling models was discussed in terms of relatively high mobility of BF4 − anion respect to the cation and the dynamics of anions in pores. These factors delete the borders between spin clusters. The spin diffusion along the pore surfaces in MCM-41 is more than twice faster than in SBA-15.",
author = "Vytautas Klimavicius and Laurynas Dagys and Vladimir Chizhik and Vytautas Balevicius",
year = "2017",
month = jul,
day = "1",
doi = "DOI 10.1007/s00723-017-0891-z",
language = "English",
volume = "48",
pages = "673--685",
journal = "Applied Magnetic Resonance",
issn = "0937-9347",
publisher = "Springer Nature",
number = "7",

}

RIS

TY - JOUR

T1 - CP MAS Kinetics Study of Ionic Liquids Confined in Mesoporous Silica

T2 - Convergence of Non-Classical and Classical Spin Coupling Models

AU - Klimavicius, Vytautas

AU - Dagys, Laurynas

AU - Chizhik, Vladimir

AU - Balevicius, Vytautas

PY - 2017/7/1

Y1 - 2017/7/1

N2 - The high data point density measurements of 1H→11B cross-polarization (CP) kinetics upon magic-angle spinning (MAS) of [bmim][BF4] confined in mesoporous SBA-15 and MCM-41 were carried out. The complex shaped 11B CP MAS signals were observed in both silica and decomposed into two Lorentz components. This points towards the possibility of bimodal distribution of [bmim][BF4] in the studied confinements. The convergence of classical and non-classical spin coupling models was deduced processing CP kinetic curves. A good fit of the theoretical curves to the experimental data was achieved using both models without any non-random deviations between theory and experiment to appear. The convergence of spin coupling models was discussed in terms of relatively high mobility of BF4 − anion respect to the cation and the dynamics of anions in pores. These factors delete the borders between spin clusters. The spin diffusion along the pore surfaces in MCM-41 is more than twice faster than in SBA-15.

AB - The high data point density measurements of 1H→11B cross-polarization (CP) kinetics upon magic-angle spinning (MAS) of [bmim][BF4] confined in mesoporous SBA-15 and MCM-41 were carried out. The complex shaped 11B CP MAS signals were observed in both silica and decomposed into two Lorentz components. This points towards the possibility of bimodal distribution of [bmim][BF4] in the studied confinements. The convergence of classical and non-classical spin coupling models was deduced processing CP kinetic curves. A good fit of the theoretical curves to the experimental data was achieved using both models without any non-random deviations between theory and experiment to appear. The convergence of spin coupling models was discussed in terms of relatively high mobility of BF4 − anion respect to the cation and the dynamics of anions in pores. These factors delete the borders between spin clusters. The spin diffusion along the pore surfaces in MCM-41 is more than twice faster than in SBA-15.

UR - http://www.scopus.com/inward/record.url?scp=85019218553&partnerID=8YFLogxK

U2 - DOI 10.1007/s00723-017-0891-z

DO - DOI 10.1007/s00723-017-0891-z

M3 - Article

AN - SCOPUS:85019218553

VL - 48

SP - 673

EP - 685

JO - Applied Magnetic Resonance

JF - Applied Magnetic Resonance

SN - 0937-9347

IS - 7

ER -

ID: 9345237