Magnetic interactions in frozen solutions of ironporphyrins

• Autorzy: Dziedzic-Kocurek K. , Okła D. , Stanek J.
• Konferencja: Proceedings of the 9th All - Polish Seminar on Mössbauer Spectroscopy OSSM'2012, 10-13 June 2012, Lublin - Kazimierz Dolny, Poland
• Języki publikacji: EN

Abstrakty

EN

The powder samples of meso-tetraphenyloporphyrin iron(III) chloride and ferriprotoporphyrin IX chloride and their frozen in solutions N,N-dimethylformamide were studied by Mössbauer spectroscopy. The variation of the outer ligands of the porphyrin rings modifies their magnetic properties but the major influence on the magnetic relaxation process exerts the intermolecular magnetic interactions, which are eliminated in dilute solutions.

Słowa kluczowe

EN

Fe-porphyrins; intermolecular interactions; magnetic relaxation; Mössbauer spectroscopy

• Wydawca: Institute of Nuclear Chemistry and Technology
• Czasopismo: Nukleonika
• Rocznik: 2013
• Tom: Vol. 58, No. 1
• Strony: 83--86
• Opis fizyczny: Bibliogr. 5 poz., rys.

Twórcy

autor

Dziedzic-Kocurek K.

autor

Okła D.

autor

Stanek J.

• Jagiellonian University, Marian Smoluchowski Institute of Physics, 4 Reymonta Str., 30-059 Kraków, Poland, Tel.: [phone],,

Bibliografia

• 1. Blume M (1967) Temperature-dependent spin-spin relaxation times: application to the Mössbauer spectra of ferric hemin. Phys Rev Lett 18:305–308
• 2. Dziedzic-Kocurek K, Stanek J, Burda K (2008) Dynamics of iron in Fe-porphyrin aggregates studied by X-ray absorption and Mössbauer spectroscopy. Hyperfine Interact 185:87–93
• 3. Johnson CE (1975) Mössbauer spectroscopy in biology. In: Gonser V (ed) Mössbuer spectroscopy. Topics in applied physics. Springer, Berlin, 5:139
• 4. Rancourt DG, Ping JY (1991) Voigt-based methods for arbitrary-shape static hyperfine parameter distributions in Mössbauer spectroscopy. Nucl Instrum Methods Phys Res B 58:85–97
• 5. Stanek J, Dziedzic-Kocurek K (2010) Magnetism of ferriprotoporphyrin IX monomers and dimers. J Magn Magn Mater 332:999–1003