Repozytorium Uniwersytetu Jagiellońskiego

Structural and magnetic studies of a new Co(II) thiocyanato coordination polymer showing slow magnetic relaxations and a metamagnetic transition

Pokaż opis pozycji

dc.contributor.author

Woehlert, Susanne

pl
dc.contributor.author

Fic, Tomasz

pl
dc.contributor.author

Tomkowicz, Zbigniew [SAP11006648]

pl
dc.contributor.author

Ebbinghaus, Stefan G.

pl
dc.contributor.author

Rams, Michał [SAP11016294]

pl
dc.contributor.author

Haase, Wolfgang

pl
dc.contributor.author

Näther, Christian

pl
dc.date.accessioned

2015-06-23T10:09:55Z

dc.date.available

2015-06-23T10:09:55Z

dc.date.issued

2013

pl
dc.identifier.issn

0020-1669

pl
dc.identifier.uri

http://ruj.uj.edu.pl/xmlui/handle/item/10095

dc.language

eng

pl
dc.rights

Dodaję tylko opis bibliograficzny

*
dc.rights.uri

*
dc.title

Structural and magnetic studies of a new Co(II) thiocyanato coordination polymer showing slow magnetic relaxations and a metamagnetic transition

pl
dc.type

JournalArticle

pl
dc.description.physical

12947-12957

pl
dc.abstract.en

Reaction of Co(NCS)_{2} with 4-ethylpyridine leads to the formation of three new compounds of composition Co(NCS)_{2} (4-ethylpyridine)_{4} (1), [(Co(NCS)_{2}]_{2}(4-ethylpyridine)_{6} (2), and [Co(NCS)_{2}(4-ethylpyridine)_{2}]_{n} (3). In all compounds the coordination of the Co(II) ions is distorted octahedral. 1 consists of discrete monomeric complexes and in 2 two Co(II) cations are linked by pairs of \mu -1,3-bridging thiocyanato ligands into dimers. In the crystal structure of 3 the Co(II) cations are connected into chains by the same bridge as in 2. Magnetic studies show that 1 and 2 are paramagnets down to a temperature of 2 K, while compound 3, which is the main object of this study, is an antiferromagnet with the Néel temperature T_{N} = 3.4 K. Its magnetic structure is built from ferromagnetic chains, which are weakly antiferromagnetically coupled. With increasing magnetic field a metamagnetic transition starts at \sim 175 Oe, as observed for a polycrystalline sample. Magnetic relaxations, which were observed in the antiferromagnetic state, are retained at the metamagnetic transition. With decreasing field 3 remains in a state, in which except of the faster magnetic relaxation process in single chains also a slower process coexists resulting in the appearance of a magnetic hysteresis loop.

pl
dc.description.volume

52

pl
dc.description.number

22

pl
dc.description.publication

1

pl
dc.identifier.doi

10.1021/ic4012235

pl
dc.identifier.eissn

1520-510X

pl
dc.title.journal

Inorganic Chemistry

pl
dc.language.container

eng

pl
dc.affiliation

Wydział Fizyki, Astronomii i Informatyki Stosowanej : Instytut Fizyki im. Mariana Smoluchowskiego

pl
dc.subtype

Article

pl
dc.rights.original

bez licencji

pl
.pointsMNiSW

[2013 A]: 40



Pliki tej pozycji

Plik Rozmiar Format Przeglądanie

Nie ma plików powiązanych z tą pozycją.

Pozycja umieszczona jest w następujących kolekcjach

Pokaż opis pozycji

Szukaj w RUJ


Szukanie zaawansowane

Statystyki