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Influence of Polarity and Ionic Strength on Intramolecular Spin Exchange in a Short Nitroxide Biradical, Containing Sulphur Atom in the Bridge. / Kokorin, A. I.; Mladenova-Kattnig, B. Y.; Gromov, O. I. et al.

In: Applied Magnetic Resonance, Vol. 49, No. 10, 01.10.2018, p. 1059-1073.

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

Harvard

Kokorin, AI, Mladenova-Kattnig, BY, Gromov, OI, Shubin, AA, Zaripov, RB & Grampp, G 2018, 'Influence of Polarity and Ionic Strength on Intramolecular Spin Exchange in a Short Nitroxide Biradical, Containing Sulphur Atom in the Bridge', Applied Magnetic Resonance, vol. 49, no. 10, pp. 1059-1073. https://doi.org/10.1007/s00723-018-1041-y

APA

Kokorin, A. I., Mladenova-Kattnig, B. Y., Gromov, O. I., Shubin, A. A., Zaripov, R. B., & Grampp, G. (2018). Influence of Polarity and Ionic Strength on Intramolecular Spin Exchange in a Short Nitroxide Biradical, Containing Sulphur Atom in the Bridge. Applied Magnetic Resonance, 49(10), 1059-1073. https://doi.org/10.1007/s00723-018-1041-y

Vancouver

Kokorin AI, Mladenova-Kattnig BY, Gromov OI, Shubin AA, Zaripov RB, Grampp G. Influence of Polarity and Ionic Strength on Intramolecular Spin Exchange in a Short Nitroxide Biradical, Containing Sulphur Atom in the Bridge. Applied Magnetic Resonance. 2018 Oct 1;49(10):1059-1073. doi: 10.1007/s00723-018-1041-y

Author

Kokorin, A. I. ; Mladenova-Kattnig, B. Y. ; Gromov, O. I. et al. / Influence of Polarity and Ionic Strength on Intramolecular Spin Exchange in a Short Nitroxide Biradical, Containing Sulphur Atom in the Bridge. In: Applied Magnetic Resonance. 2018 ; Vol. 49, No. 10. pp. 1059-1073.

BibTeX

@article{b67b57d8294f4a9d93b5e43e279d933b,
title = "Influence of Polarity and Ionic Strength on Intramolecular Spin Exchange in a Short Nitroxide Biradical, Containing Sulphur Atom in the Bridge",
abstract = "A short nitroxide biradical: O=S(OR6)2 (BS), where OR6 is 1-oxyl-2,2,6,6-tetramethyl-4-oxypiperidine, has been studied by electron paramagnetic resonance spectroscopy at X-, Q-, and W-band in liquid and frozen toluene, ethanol and ionic liquid solutions. Variations of the intramolecular dynamics and conformational transitions in the biradical as a function of temperature in the range of 240–420 K, polarity and the ionic strength were characterized by changes in the isotropic 14N hyperfine splitting (hfs) constant a, values of the exchange integral |J|, and the empirical parameter γ3, the ratio between conformations with slow and fast transitions. Thermodynamic parameters of the conformational rearrangements are calculated. The obtained results were compared with the X-ray structural data and quantum chemical calculations of the geometries and intramolecular transitions of biradical BS. Possible mechanisms of the polarity and the ionic strength effect on the biradical behavior in solutions of different types are discussed.",
keywords = "MAGNETIC-PROPERTIES, NITROXYDES, BEHAVIOR",
author = "Kokorin, {A. I.} and Mladenova-Kattnig, {B. Y.} and Gromov, {O. I.} and Shubin, {A. A.} and Zaripov, {R. B.} and G. Grampp",
year = "2018",
month = oct,
day = "1",
doi = "10.1007/s00723-018-1041-y",
language = "English",
volume = "49",
pages = "1059--1073",
journal = "Applied Magnetic Resonance",
issn = "0937-9347",
publisher = "Springer-Verlag GmbH and Co. KG",
number = "10",

}

RIS

TY - JOUR

T1 - Influence of Polarity and Ionic Strength on Intramolecular Spin Exchange in a Short Nitroxide Biradical, Containing Sulphur Atom in the Bridge

AU - Kokorin, A. I.

AU - Mladenova-Kattnig, B. Y.

AU - Gromov, O. I.

AU - Shubin, A. A.

AU - Zaripov, R. B.

AU - Grampp, G.

PY - 2018/10/1

Y1 - 2018/10/1

N2 - A short nitroxide biradical: O=S(OR6)2 (BS), where OR6 is 1-oxyl-2,2,6,6-tetramethyl-4-oxypiperidine, has been studied by electron paramagnetic resonance spectroscopy at X-, Q-, and W-band in liquid and frozen toluene, ethanol and ionic liquid solutions. Variations of the intramolecular dynamics and conformational transitions in the biradical as a function of temperature in the range of 240–420 K, polarity and the ionic strength were characterized by changes in the isotropic 14N hyperfine splitting (hfs) constant a, values of the exchange integral |J|, and the empirical parameter γ3, the ratio between conformations with slow and fast transitions. Thermodynamic parameters of the conformational rearrangements are calculated. The obtained results were compared with the X-ray structural data and quantum chemical calculations of the geometries and intramolecular transitions of biradical BS. Possible mechanisms of the polarity and the ionic strength effect on the biradical behavior in solutions of different types are discussed.

AB - A short nitroxide biradical: O=S(OR6)2 (BS), where OR6 is 1-oxyl-2,2,6,6-tetramethyl-4-oxypiperidine, has been studied by electron paramagnetic resonance spectroscopy at X-, Q-, and W-band in liquid and frozen toluene, ethanol and ionic liquid solutions. Variations of the intramolecular dynamics and conformational transitions in the biradical as a function of temperature in the range of 240–420 K, polarity and the ionic strength were characterized by changes in the isotropic 14N hyperfine splitting (hfs) constant a, values of the exchange integral |J|, and the empirical parameter γ3, the ratio between conformations with slow and fast transitions. Thermodynamic parameters of the conformational rearrangements are calculated. The obtained results were compared with the X-ray structural data and quantum chemical calculations of the geometries and intramolecular transitions of biradical BS. Possible mechanisms of the polarity and the ionic strength effect on the biradical behavior in solutions of different types are discussed.

KW - MAGNETIC-PROPERTIES

KW - NITROXYDES

KW - BEHAVIOR

UR - http://www.scopus.com/inward/record.url?scp=85049998790&partnerID=8YFLogxK

U2 - 10.1007/s00723-018-1041-y

DO - 10.1007/s00723-018-1041-y

M3 - Article

AN - SCOPUS:85049998790

VL - 49

SP - 1059

EP - 1073

JO - Applied Magnetic Resonance

JF - Applied Magnetic Resonance

SN - 0937-9347

IS - 10

ER -

ID: 15965608