Synthesis, crystal structures and magnetic characterisation of two 2p-3d metallic coordination polymers

The coordination polymers {Mg[Fe(L)(CN)(5)]}(n)center dot 0.5nH(2)O and {MgCu2 (CH3COO)(6)}(n) [L = bis(N-imidazolyl)methane] have been synthesised. X-ray diffraction revealed that {Mg[Fe(L)(CN)(5)]}(n)center dot 0.5nH(2)O has a one-dimensional neutral chain structure consisting of alternating [Mg(L)(2)(H2O)(2))](2+) species and [Fe(L)(CN)(5)](2-) building blocks, which can be further linked into a three-dimensional supramolecular structure by inter-chain p-p interactions. {MgCu2(CH3COO)(6)}(n) has a three-dimensional network with the [MgCu2(CH3COO)(6)] unit as neutral core extended by Mg-O bonds. Magnetic susceptibility studies on {MgCu2(CH3COO)(6)}(n) revealed antiferromagnetic interactions between adjacent Cu(II) ions.