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Pregled bibliografske jedinice broj: 738977

Magnetic anisotropy of Cr(III) ions in polymeric oxalate complexes as revealed by HF-ESR spectroscopy


Žilić, Dijana; Androš, Lidija; Krupskaya, Yulia; Kataev, Vladislav; Büchner, Bernd
Magnetic anisotropy of Cr(III) ions in polymeric oxalate complexes as revealed by HF-ESR spectroscopy // Applied magnetic resonance, 46 (2015), 3; 309-321 doi:10.1007/s00723-014-0630-7 (međunarodna recenzija, članak, znanstveni)


CROSBI ID: 738977 Za ispravke kontaktirajte CROSBI podršku putem web obrasca

Naslov
Magnetic anisotropy of Cr(III) ions in polymeric oxalate complexes as revealed by HF-ESR spectroscopy

Autori
Žilić, Dijana ; Androš, Lidija ; Krupskaya, Yulia ; Kataev, Vladislav ; Büchner, Bernd

Izvornik
Applied magnetic resonance (0937-9347) 46 (2015), 3; 309-321

Vrsta, podvrsta i kategorija rada
Radovi u časopisima, članak, znanstveni

Ključne riječi
Cr(III) ; metal-organic complex ; EPR ; ESR ; high field ; high frequency ; magnetic anisotropy ; zero-field splitting

Sažetak
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 83−332 GHz in magnetic fields up to 16 T, the spin-Hamiltonian parameters, g, D and E, have been obtained. Both chromium complexes have a small negative (easy axis) magnetic anisotropy |D| < 1 K. CrPhen complex is biaxial, i.e. besides axial D, there is also significant rhombic zero-field splitting (ZFS) parameter, 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.

Izvorni jezik
Engleski

Znanstvena područja
Fizika, Kemija



POVEZANOST RADA


Projekti:
HRZZ-PD-02.03/164 - Istraživanje molekulskih magneta (polinuklearnih kompleksa prijelaznih metala) HF-EPR spektroskopijom
098-0982904-2946 - Višenuklearni metalni sustavi: sinteza i svojstva (Perić, Berislav, MZOS ) ( POIROT)
098-0982915-2939 - Molekulska struktura i dinamika sustava s paramagnetskim česticama (Ilakovac-Kveder, Marina, MZOS ) ( POIROT)

Ustanove:
Institut "Ruđer Bošković", Zagreb

Profili:

Avatar Url Lidija Androš Dubraja (autor)

Avatar Url Dijana Žilić (autor)

Citiraj ovu publikaciju

Žilić, Dijana; Androš, Lidija; Krupskaya, Yulia; Kataev, Vladislav; Büchner, Bernd
Magnetic anisotropy of Cr(III) ions in polymeric oxalate complexes as revealed by HF-ESR spectroscopy // Applied magnetic resonance, 46 (2015), 3; 309-321 doi:10.1007/s00723-014-0630-7 (međunarodna recenzija, članak, znanstveni)
Žilić, D., Androš, L., Krupskaya, Y., Kataev, V. & Büchner, B. (2015) Magnetic anisotropy of Cr(III) ions in polymeric oxalate complexes as revealed by HF-ESR spectroscopy. Applied magnetic resonance, 46 (3), 309-321 doi:10.1007/s00723-014-0630-7.
@article{article, year = {2015}, pages = {309-321}, DOI = {10.1007/s00723-014-0630-7}, keywords = {Cr(III), metal-organic complex, EPR, ESR, high field, high frequency, magnetic anisotropy, zero-field splitting}, journal = {Applied magnetic resonance}, doi = {10.1007/s00723-014-0630-7}, volume = {46}, number = {3}, issn = {0937-9347}, title = {Magnetic anisotropy of Cr(III) ions in polymeric oxalate complexes as revealed by HF-ESR spectroscopy}, keyword = {Cr(III), metal-organic complex, EPR, ESR, high field, high frequency, magnetic anisotropy, zero-field splitting} }
@article{article, year = {2015}, pages = {309-321}, DOI = {10.1007/s00723-014-0630-7}, keywords = {Cr(III), metal-organic complex, EPR, ESR, high field, high frequency, magnetic anisotropy, zero-field splitting}, journal = {Applied magnetic resonance}, doi = {10.1007/s00723-014-0630-7}, volume = {46}, number = {3}, issn = {0937-9347}, title = {Magnetic anisotropy of Cr(III) ions in polymeric oxalate complexes as revealed by HF-ESR spectroscopy}, keyword = {Cr(III), metal-organic complex, EPR, ESR, high field, high frequency, magnetic anisotropy, zero-field splitting} }

Časopis indeksira:


  • Current Contents Connect (CCC)
  • Web of Science Core Collection (WoSCC)
    • Science Citation Index Expanded (SCI-EXP)
    • SCI-EXP, SSCI i/ili A&HCI
  • Scopus


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