Inorganic Chemistry, Vol.44, No.5, 1354-1361, 2005
A new bimetallic intercalated 3-D assembly magnet [{(323)Ni}(3){Fe-III(CN)(6)}(2)]n(-)12nH(2)O (323=N,-bis(3-aminopropyl) ethylenediamine): An unprecedented concomitant presence of meridional and facial arrangment of ferricyanide anion
A novel molecular based magnet of three-dimensional (3-D) cyanide-bridged bimetallic assembly, [{(323)Ni}(3){Fe-III-(CN)(6)}(2)](n).2nH(2)O where 323 = N,N'-bis(3-aminopropyl) ethylenediamine, was synthesized and structurally characterized. The compound crystallizes in the orthorhombic space group Pbca with a = 15.6560 Angstrom, b = 15.2910 Angstrom, c = 50.9120 Angstrom, and Z = 8. The assembly has two intercalated 3-D networks created by Fe-III-CN-Ni-II-NC-Fe-III linkages. The ferricyanide anion adopts both facial and meridional arrangements through the linkage. Interesting magnetic properties including 3-dimensional magnetic ordering were revealed. The assembly displays 3-dimensional magnetic ordering below 5.2 +/- 0.1 K and field-induced magnetic behavior below 5.1 +/- 0.1 K and above 1.15 +/-0.05 kOe.