Magnetic Anisotropy of Cr(III) Ions in Polymeric Oxalate Complexes as Revealed by HF-ESR Spectroscopy

Verfasser / Beitragende:
[Dijana Žilić, Lidija Androš, Yulia Krupskaya, Vladislav Kataev, Bernd Büchner]
Ort, Verlag, Jahr:
2015
Enthalten in:
Applied Magnetic Resonance, 46/3(2015-03-01), 309-321
Format:
Artikel (online)
ID: 605545723
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024 7 0 |a 10.1007/s00723-014-0630-7  |2 doi 
035 |a (NATIONALLICENCE)springer-10.1007/s00723-014-0630-7 
245 0 0 |a Magnetic Anisotropy of Cr(III) Ions in Polymeric Oxalate Complexes as Revealed by HF-ESR Spectroscopy  |h [Elektronische Daten]  |c [Dijana Žilić, Lidija Androš, Yulia Krupskaya, Vladislav Kataev, Bernd Büchner] 
520 3 |a Two new Cr(III) paramagnetic polymeric complexes: {[CaCr2(phen)2(C2O4)4]·0.33H2O} n (CrPhen) and {[CaCr2(bpy)2(C2O4)4]·0.83H2O} n (CrBpy), where phen=1,10-phenanthroline and bpy=2,2 $$'$$ ′ -bipyridine, have been studied by high-field high-frequency electron spin resonance (HF-ESR) spectroscopy. From the oriented powder spectra, recorded in the frequency range 83-332GHz in magnetic fields up to 16T, the spin-Hamiltonian parameters, $$g$$ g , $$D$$ D and $$E$$ E , have been obtained. Both chromium complexes have a small negative (easy axis) magnetic anisotropy $$|D|<1$$ | D | < 1 K. CrPhen complex is biaxial, i.e., besides axial $$D$$ D , there is also significant rhombic zero-field splitting (ZFS) parameter, $$E$$ E . Contrary to CrPhen, CrBpy complex is uniaxial, but described by two sets of axial ZFS parameters. Despite very similar crystallographic structures of both complexes, HF-ESR spectroscopy resolved the existence of two magnetically inequivalent Cr(III) ions in CrBpy complex. The results fully support the earlier X-ray, SQUID magnetization and powder X-band ESR studies. 
540 |a Springer-Verlag Wien, 2015 
700 1 |a Žilić  |D Dijana  |u Institute for Solid State Research, IFW Dresden, Helmholtzstrasse 20, D-01069, Dresden, Germany  |4 aut 
700 1 |a Androš  |D Lidija  |u Ruđer Bošković Institute, Bijenička cesta 54, 10000, Zagreb, Croatia  |4 aut 
700 1 |a Krupskaya  |D Yulia  |u Institute for Solid State Research, IFW Dresden, Helmholtzstrasse 20, D-01069, Dresden, Germany  |4 aut 
700 1 |a Kataev  |D Vladislav  |u Institute for Solid State Research, IFW Dresden, Helmholtzstrasse 20, D-01069, Dresden, Germany  |4 aut 
700 1 |a Büchner  |D Bernd  |u Institute for Solid State Research, IFW Dresden, Helmholtzstrasse 20, D-01069, Dresden, Germany  |4 aut 
773 0 |t Applied Magnetic Resonance  |d Springer Vienna  |g 46/3(2015-03-01), 309-321  |x 0937-9347  |q 46:3<309  |1 2015  |2 46  |o 723 
856 4 0 |u https://doi.org/10.1007/s00723-014-0630-7  |q text/html  |z Onlinezugriff via DOI 
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900 7 |a Metadata rights reserved  |b Springer special CC-BY-NC licence  |2 nationallicence 
908 |D 1  |a research-article  |2 jats 
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950 |B NATIONALLICENCE  |P 856  |E 40  |u https://doi.org/10.1007/s00723-014-0630-7  |q text/html  |z Onlinezugriff via DOI 
950 |B NATIONALLICENCE  |P 700  |E 1-  |a Žilić  |D Dijana  |u Institute for Solid State Research, IFW Dresden, Helmholtzstrasse 20, D-01069, Dresden, Germany  |4 aut 
950 |B NATIONALLICENCE  |P 700  |E 1-  |a Androš  |D Lidija  |u Ruđer Bošković Institute, Bijenička cesta 54, 10000, Zagreb, Croatia  |4 aut 
950 |B NATIONALLICENCE  |P 700  |E 1-  |a Krupskaya  |D Yulia  |u Institute for Solid State Research, IFW Dresden, Helmholtzstrasse 20, D-01069, Dresden, Germany  |4 aut 
950 |B NATIONALLICENCE  |P 700  |E 1-  |a Kataev  |D Vladislav  |u Institute for Solid State Research, IFW Dresden, Helmholtzstrasse 20, D-01069, Dresden, Germany  |4 aut 
950 |B NATIONALLICENCE  |P 700  |E 1-  |a Büchner  |D Bernd  |u Institute for Solid State Research, IFW Dresden, Helmholtzstrasse 20, D-01069, Dresden, Germany  |4 aut 
950 |B NATIONALLICENCE  |P 773  |E 0-  |t Applied Magnetic Resonance  |d Springer Vienna  |g 46/3(2015-03-01), 309-321  |x 0937-9347  |q 46:3<309  |1 2015  |2 46  |o 723