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Magnetic and structural properties of [Ta_6Cl_12(CH_3OH)_6]Br_3 and [Ta_6Cl_12(CH_3OH)_6]Br_3&middot ; ; 4H_2O


Perić, Berislav; Miljak, Marko; Brničević, Nevenka
Magnetic and structural properties of [Ta_6Cl_12(CH_3OH)_6]Br_3 and [Ta_6Cl_12(CH_3OH)_6]Br_3· ; ; 4H_2O // Book of abstarcts and programme / Cetina, Mario ; Kajfež, Tanja ; Popović, Stanko ; Štefanić, Zoran (ur.).
Zagreb: Hrvatska akademija znanosti i umjetnosti, Hrvatsko kristalografsko društvo, 2003. (poster, međunarodna recenzija, sažetak, znanstveni)


Naslov
Magnetic and structural properties of [Ta_6Cl_12(CH_3OH)_6]Br_3 and [Ta_6Cl_12(CH_3OH)_6]Br_3&middot ; ; 4H_2O

Autori
Perić, Berislav ; Miljak, Marko ; Brničević, Nevenka

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

Izvornik
Book of abstarcts and programme / Cetina, Mario ; Kajfež, Tanja ; Popović, Stanko ; Štefanić, Zoran - Zagreb : Hrvatska akademija znanosti i umjetnosti, Hrvatsko kristalografsko društvo, 2003

Skup
Twelfth croatian-slovenian crystallographic meeting

Mjesto i datum
Nacionalni Park Plitvička Jezera, 19.-23.06.2003

Vrsta sudjelovanja
Poster

Vrsta recenzije
Međunarodna recenzija

Ključne riječi
x

Sažetak
In most magnetic molecular clusters studied in the literature, localized moments of metal ions are coupled by superexchange interactions via ligand entities which are parts of molecular clusters. There is a limited number of studies where magnetic behaviour arises from unfilled molecular orbitals delocalized over the entire metal cores of molecular metal clusters [J. Sinzing et al., Phys. Rev. Lett. 81 (1998) 3211]. This type of magnetism is present in compounds with paramagnetic hexanuclear tantalum halide clusters. Temperature dependent magnetic susceptibility measurements for the compound [Ta_6Cl_12(CH_3OH)_6]Br_3 (I) and temperature dependent magnetic susceptibility anisotropy measurements for the compound [Ta_6Cl_12(CH_3OH)_6]Br_3&middot ; ; 4H_2O (II) can be interpreted as Bonner-Fisher one-dimensional model of interacting magnetic centres [J. C. Bonner, M. E. Fisher, Phys. Rev. A, 135 (1964) 640]. Structural data for compounds (I) and (II) are available from the literature [N. Brničević et al., Inorg. Chem. 31 (1992) 3294]. Compound (I) crystallizes in space group, a = b = 19.127 (4) &Aring ; ; , c = 8.565 (1) &Aring ; ; , and compound (II) in C2/m space group, a = 12.187 (14) &Aring ; ; , b = 15.793 (4) &Aring ; ; , c = 9.182 (6) &Aring ; ; , β = 99.05 (3)o. Magnetic measurements will be discussed in view of the structural data with special attention to the crystallographic origin of anisotropy for compound (II).

Izvorni jezik
Engleski

Znanstvena područja
Kemija



POVEZANOST RADA


Projekt / tema
0098066

Ustanove
Institut "Ruđer Bošković", Zagreb

Profili:

Avatar Url Berislav Perić (autor)

Avatar Url Marko Miljak (autor)

Avatar Url Nevenka Brničević (autor)

Citiraj ovu publikaciju

Perić, Berislav; Miljak, Marko; Brničević, Nevenka
Magnetic and structural properties of [Ta_6Cl_12(CH_3OH)_6]Br_3 and [Ta_6Cl_12(CH_3OH)_6]Br_3· ; ; 4H_2O // Book of abstarcts and programme / Cetina, Mario ; Kajfež, Tanja ; Popović, Stanko ; Štefanić, Zoran (ur.).
Zagreb: Hrvatska akademija znanosti i umjetnosti, Hrvatsko kristalografsko društvo, 2003. (poster, međunarodna recenzija, sažetak, znanstveni)
Perić, B., Miljak, M. & Brničević, N. (2003) Magnetic and structural properties of [Ta_6Cl_12(CH_3OH)_6]Br_3 and [Ta_6Cl_12(CH_3OH)_6]Br_3· ; ; 4H_2O. U: Cetina, M., Kajfež, T., Popović, S. & Štefanić, Z. (ur.)Book of abstarcts and programme.
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