Pregled bibliografske jedinice broj: 765788
Synthesis, crystal structures and magnetic properties of the oxalate-bridged single CuIICuII and cocrystallized CuIIZnII systems. Three species (CuCu, CuZn, ZnZn) in the crystalline lattice
Synthesis, crystal structures and magnetic properties of the oxalate-bridged single CuIICuII and cocrystallized CuIIZnII systems. Three species (CuCu, CuZn, ZnZn) in the crystalline lattice // Polyhedron, 98 (2015), 26-34 doi:10.1016/j.poly.2015.05.034 (međunarodna recenzija, članak, znanstveni)
CROSBI ID: 765788 Za ispravke kontaktirajte CROSBI podršku putem web obrasca
Naslov
Synthesis, crystal structures and magnetic properties of the oxalate-bridged single CuIICuII and cocrystallized CuIIZnII systems. Three species (CuCu, CuZn, ZnZn) in the crystalline lattice
Autori
Jurić, Marijana ; Pajić, Damir ; Žilić, Dijana ; Rakvin, Boris ; Milić, Dalibor ; Planinić, Pavica
Izvornik
Polyhedron (0277-5387) 98
(2015);
26-34
Vrsta, podvrsta i kategorija rada
Radovi u časopisima, članak, znanstveni
Ključne riječi
Binuclear copper compound; Binuclear zinc compound; Oxalate bridges; Homo- and heterometallic; Magnetic properties
Sažetak
Two novel oxalate-bridged species – homometallic CuIICuII, [{; ; ; Cu(bpy)Cl}; ; ; 2(μ-C2O4)] (1) and heterometallic CuIIZnII, [CuZn{; ; ; (bpy)Cl}; ; ; 2(μ-C2O4)] (2) (bpy = 2, 2'-bipyridine) – were synthesized and characterized by elemental analyses, IR and EPR spectroscopy, magnetic susceptibility measurements and single-crystal X-ray diffraction studies. The compounds crystallize in the same, triclinic P-1 space group. Their crystal structures consist of the binuclear entities [M(bpy)Cl(μ-C2O4)M(bpy)Cl] [M = Cu2+ (1) ; M = Cu2+ and/or Zn2+ (2)] linked by the intermolecular π•••π stacking interactions. Highly unusual, compound 2 is a cocrystallized system containing three types of mutually analogous entities: [Cu(bpy)Cl (μ-C2O4)Cu(bpy)Cl] (CuCu ; the same unit as in 1), [Cu(bpy)Cl(μ-C2O4)Zn(bpy)Cl] (CuZn) and [Zn(bpy)Cl(μ-C2O4)Zn(bpy)Cl] (ZnZn), randomly distributed throughout the crystalline lattice in the molar ratio near to 1:2:1, respectively. Each metal atom in both 1 and 2 displays a square-pyramidal coordination involving two N atoms from the coordinated 2, 2'-bipyridine ligand and two O atoms from the bridging oxalate group in the basal plane, and one chlorine atom in the apical position. Magnetization measurements, supported also by the EPR study, reveal a strong antiferromagnetic exchange interaction (J = -295(2) and -294(2) cm-1, for 1 and 2, respectively ; H = -JS1•S2) between two copper(II) ions through the oxalate bridge.
Izvorni jezik
Engleski
Znanstvena područja
Fizika, Kemija
POVEZANOST RADA
Projekti:
098-0982904-2946 - Višenuklearni metalni sustavi: sinteza i svojstva (Perić, Berislav, MZOS ) ( CroRIS)
098-0982915-2939 - Molekulska struktura i dinamika sustava s paramagnetskim česticama (Ilakovac-Kveder, Marina, MZOS ) ( CroRIS)
119-1191458-1017 - Nanomagneti (Zadro, Krešo, MZOS ) ( CroRIS)
119-1193079-1084 - Strukturno istraživanje bioloških makromolekula metodom rentgenske difrakcije (Matković-Čalogović, Dubravka, MZOS ) ( CroRIS)
Ustanove:
Institut "Ruđer Bošković", Zagreb,
Prirodoslovno-matematički fakultet, Zagreb
Profili:
Marijana Jurić
(autor)
Damir Pajić
(autor)
Pavica Planinić
(autor)
Boris Rakvin
(autor)
Dijana Žilić
(autor)
Dalibor Milić
(autor)
Citiraj ovu publikaciju:
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