1D and 2D FeII Azide Coordination Polymers with Ferromagnetic Canting
Artikel i vetenskaplig tidskrift, 2008

The two compounds [FeII(pyridine)2(N3)2(H2O)] (1) and [FeII(4-acetylpyridine)2(N3)2] (2) were prepared. The X-ray crystal structures show end-to-end (EE) bridging azides in both cases with a 1D Fe-NNN-Fe chain for 1 and a 2D Fe-NNN-Fe net in 2. Both compounds show similar magnetic behaviour where the high-temperature data are consistent with antiferromagnetic couplings and the low-temperature data indicate ferrimagnetic ordering based on spin canting at 20 and 45 K. Compound 2 also shows a hysteresis loop. These findings are compared to the related 3D coordination polymer [Fe(N3)2(4,4'-bipyridine)]. According to network analyses the latter compound was shown to contain the new uninodal six-connected-network topology (510 · 64 · 7)-jsm.

ferromagnetism

coordination polymer

X-ray structure analysis

Författare

Morsy A.M. Abu-Youssef

Vratislav Langer

Chalmers, Kemi- och bioteknik, Oorganisk miljökemi

Dominique Luneau

Eman Shams

Mohamed A. S. Goher

Lars Öhrström

Chalmers, Kemi- och bioteknik, Fysikalisk kemi

European Journal of Inorganic Chemistry

1434-1948 (ISSN)

Vol. 2008 112-118

Ämneskategorier

Polymerkemi

Oorganisk kemi

Organisk kemi

Den kondenserade materiens fysik

DOI

10.1002/ejic.200700646