EPR Spectra of the Genuine-Organic and Metal-Organic TCNQ-Based Anion Radical Salts

• Authors: M. Botko , E. Čižmár , M. Kajňaková , A. Feher
• Languages of publication: EN

Abstracts

EN

We have measured the electron paramagnetic resonance spectra of genuine-organic anion-radical salts [Me-2,6-di-Me-Py](TCNQ)_{2}, [Me-3,5-di-Me-Py](TCNQ)_{2}, [N-Me-OH-Me-Py](TCNQ)_{2}, [N-Et-OH-Me-Py](TCNQ)_{2}, and metal-organic anion-radical salt [Mn-phen_{3}](TCNQ)_{2}·H_{2}O in the temperature range from 2 K to 300 K in the X-band frequency range. A comparison study of the shape of spectra, g-factors and linewidths with respect to the composition and crystal structure of studied compounds is presented. While the genuine-organic anion-radical salts display a typical EPR response originating from TCNQ pairs, the spectra of metal-organic anion-radical salt are dominated by the contribution of transition metal.

Keywords

EN

75.50.Xx; 76.30.-v

Discipline

• 75.50.Xx: Molecular magnets
• 76.30.-v: Electron paramagnetic resonance and relaxation(see also 33.35.+r Electron resonance and relaxation in atomic and molecular physics; 87.80.Lg Magnetic and paramagnetic resonance in biological physics)

• Publisher: Institute of Physics, Polish Academy of Sciences
• Journal: Acta Physica Polonica A
• Year: 2014
• Volume: 126
• Issue: 1
• Pages: 252-253

Dates

published

2014-07

Contributors

author

M. Botko

• Institute of Physics, Faculty of Science, P. J. Šafárik University, Park Angelinum 9, 041 54 Košice, Slovakia

author

E. Čižmár

• Institute of Physics, Faculty of Science, P. J. Šafárik University, Park Angelinum 9, 041 54 Košice, Slovakia

author

M. Kajňaková

• Institute of Physics, Faculty of Science, P. J. Šafárik University, Park Angelinum 9, 041 54 Košice, Slovakia

author

A. Feher

• Institute of Physics, Faculty of Science, P. J. Šafárik University, Park Angelinum 9, 041 54 Košice, Slovakia

References

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• [2] M. Botko, V.O. Cheranovskii, O.N. Kazheva, G.V. Shilov, O.A. Dyachenko, A.B. Verkin, M. Kucmin, V.A. Starodub, A. Radváková, M. Kajňaková, A. Feher, Solid State Sci. 24, 85 (2013), doi: 10.1016/j.solidstatesciences.2013.07.011
• [3] J. Kürti, G. Menczel, Phys. Status Solidi B 102, 639 (1980), doi: 10.1002/pssb.2221020224
• [4] S. Stoll, A. Schweiger, J. Magn. Reson. 178, 42 (2006), doi: 10.1016/j.jmr.2005.08.013

Identifiers

DOI

10.12693/APhysPolA.126.252