Abstract
A new manganese(II) 1,1-cyclohexanediacetate compound of formula [Mn13(chda)12(H2O)4(OH)2]n·n(nap) [H2chda = 1,1-cyclohexanediacetic acid, nap = naphthalene] has been synthesized by a hydrothermal reaction and characterized through single crystal X-ray synchrotron diffraction, exhibiting a 3D architecture, where the nap molecules are weakly anchored in the cavities of the [Mn13(chda)12(H2O)4(OH)2]n coordination polymer through steric interactions. Magnetic analysis reveals a long-range ferrimagnetic order below 2.4 K, most likely due to non-compensation of the magnetic moments. The non-compensation in spin moments arises, for topological reasons, from the network of exchange couplings associated to the binding modes (carboxylate and µ-oxo). This compound is one of the few examples of homometallic topological ferrimagnets built up from carboxylate ligands.
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