Naslov
Investigation of exchange Interaction in heterometallic complexes MIICrIII (M = Mn, Co, Ni, Cu, Zn)

Autori
Torić, Filip ; Pajić, Damir ; Androš Dubraja, Lidija ; Jurić, Marijana

Vrsta, podvrsta i kategorija rada
Sažeci sa skupova, sažetak, znanstveni

Izvornik
Solid-State Science & Research : Book of Abstracts and Programme / Juribašić Kulcsar, Marina ; Halasz, Ivan - Zagreb : Institut Ruđer Bošković, 2017, 102-102

ISBN
978-953-7941-15-4

Skup
Solid-State Science & Research Meeting

Mjesto i datum
Zagreb, Hrvatska, 28.06.2017. - 30.06.2017

Vrsta sudjelovanja
Poster

Vrsta recenzije
Međunarodna recenzija

Ključne riječi
Oxalato bridged Cr ; Ni ; Mg ; Ni ; Zn ; magnetism

Sažetak
The reaction of bis(phenanthroline)metal(II) cations (M = Mn2+, Co2+, Ni2+, Cu2+, Zn2+) with bis(oxalato)chromium(III) anions in water/ethanol solution gives rise to a series of compounds with oxalate-bridged cations, [{; ; ; ; M(phen)2}; ; ; ; 2(μ- C2O4)]1/2[Cr(phen)(C2O4)2]·2H2O [MnCr, CoCr, NiCr, CuCr, ZnCr]. The temperature dependence of magnetic susceptibility χ(T) indicates different magnetic super exchange interactions taking place in homodinuclear oxalate-bridged cations containing Mn2+, Co2+, Ni2+ and Cu2+. Oxalate ligands mediate ferromagnetic coupling of Cu2+ metal cations in CuCr with J = 3.45cm-1, whereas in MnCr, CoCr, NiCr, antiferromagnetic interactions are observed between Mn2+, Co2+ and Ni2+ cations, with J = - 2.48cm-1, -9.61cm-1 and -23.89cm-1 respectively. Presence of large zero- field splitting parameters for Cr3+ ion (from mononuclear anion) indicates significant influence of octahedral distortions on magnetic properties of the investigated compounds. Own software is developed in order to fit all magnetic parameters at the same time.

Izvorni jezik
Engleski

Znanstvena područja
Fizika, Kemija

POVEZANOST RADA