Synthesis and magnetic property of porous naphthalenetetracarboxylate manganese complex,the first (mu_2-aqua)bis(mu_2-carboxylate)-bridged manganese polymer

摘要

A manganese coordination polymer [Mn_2(NTC)(H_2O)_2]_n,where NTC is 1,4,5,8-naphthalenetetracarboxylate anion,has been synthesized by slow diffusion of manganese chloride and H_4NTC.Mn(II) ions are bridged by one coordinated water and two car-boxylate groups in syn-syn mode to form infinite chains,which are further cross-linked by the naphthalene spacers of the NTC to produce 3-D extended network with open-channels.An antiferromagnetic coupling interaction between adjacent manganese ions dominates the magnetic property of the compound.