671808-64-3Relevant academic research and scientific papers
1D Manganese(III) and iron(III) coordination polymers containing Schiff-base ligands and dicyanamide
Price, David J.,Batten, Stuart R.,Moubaraki, Boujemaa,Murray, Keith S.
, p. 2256 - 2266 (2007/10/03)
The 1D coordination polymers, [MIII(Schiff-base)(dca)] n, dca- = dicyanamide, N(CN)2-, MIII = Mn and Fe, Schiff-base= salen2- (N,N′ethylenebis(salicylaldiminato)) (1) and (2); sal-o-phen2- (N,N′-o-phenylenebis (salicylaldiminato)) (3) and (4); (±)-saltch2- (N,N′-(±)-trans-cyclohexanebis (salicylaldiminato)) (5) and (6), are reported. The complexes consist of octahedral high-spin MIII atoms coordinated in the equatorial plane by the tetra-chelafing Schiff-base ligand and coordinated in the axial positions by single μ1,5-dicyanamide bridges, forming infinite linear zigzag chains. The chains of complexes 1 to 6 interdigitate in a parallel fashion with adjacent chains, via weak π-stacking. Variable temperature magnetic susceptibility measurements (2-300 K; H = 1 T) have shown that these compounds display very weak antiferromagnetic coupling, and consequently no long-range magnetic order has been observed under these conditions, as expected for isolated 1D chains.
