Back to Search
Start Over
Synthesis, Structures, and Magnetic Properties of a Series of Cyano-Bridged Fe—Mn Bimetallic Complexes.
- Source :
-
Inorganic Chemistry . 6/26/2006, Vol. 45 Issue 13, p5018-5026. 9p. 5 Diagrams, 1 Chart, 7 Graphs. - Publication Year :
- 2006
-
Abstract
- The preparation and crystal structures of five cyano-bridged Fe-Mn complexes, [(bipy)2FeII(CN)2MnII(bipy)2]2(CIO4)4 (1), [(bipy)2FeII(CN)2MnII(DMF)3(H2O)]2(CIO4)4 (2), {[(Tp)FeIII(CN)3]2MnII(DMF)2(H2O)}2 (3), {[(Tp)FeIII(CN)3]2MnII- (DMF)2}n (4), and Na2[MnIIFeII(CN)6] (5) (bipy = 2,2′-bipyridine, Tp = tris(pyrazolyl)hydroborate), are reported here. Compounds 1–4 contain the basic Fe2(CN)4Mn2 square building units, of which 1-3 show the motif of discrete molecular squares of Fe2(CN)4Mn2 and 4 possesses a 1D double-zigzag chainlike structure, while compound 5 is a 3D cubic framework analogous to that of Prussian blue. Compounds 1 and 2 show weak ferromagnetic interactions between two Mn(II) ions through the bent -NC-Fe(II)-CN-bridges. Compound 3 shows weak antiferromagnetic coupling between the Fe(III) and Mn(II) ions, while compound 4 displays a metamagnetic-like behavior with TN = 5.2 K and Hc = 10.5 kOe. Compound 5 exhibits a ferromagnetic ordering with Tc = 3.5 K, coercive field, Hc, = 330 G, and a remnant magnetization of 503 cm³ Oe mol-1. [ABSTRACT FROM AUTHOR]
Details
- Language :
- English
- ISSN :
- 00201669
- Volume :
- 45
- Issue :
- 13
- Database :
- Academic Search Index
- Journal :
- Inorganic Chemistry
- Publication Type :
- Academic Journal
- Accession number :
- 21479380
- Full Text :
- https://doi.org/10.1021/ic052168x