A cyanido-bridged two-dimensional network based on a RuIII schiff base complex and MnII ions: Synthesis, crystal structure and magnetic properties

The reaction between (Bu4N)[Ru(salen)(CN)2] and MnCl2 yielded a bidimensional (2D) network [{Ru(salen)(CN)2}2Mn(CH3CN)]·H2O (1) incorporating square pyramidal MnII centers. The single crystal X-ray structure, heat capacity and magnetic properties of 1 are herein reported. From the magnetic measurements, antiferromagnetic interactions were detected between RuIII (s = 1/2) and MnII (S = 5/2) ions through the cyanido bridges (J) in the 2D framework as well as antiferromagnetic interplane interactions (J′). These interactions were estimated using a three-dimensional model in the frame of the mean field approximation (J/kB = −0.86(2) K and J′/kB = −0.067(6) K, gRu = 2.33(5)). Furthermore, a three dimensional antiferromagnetic order was evidenced by dc susceptibility measurements with a Néel temperature of 2.6 ± 0.1 K that was also confirmed by heat capacity measurements.

The synthesis and crystallographic study of a new heterometallic 2D network is herein reported. The magnetic properties were studied and analyzed with a 3D model in the frame of the mean-field approximation.Figure optionsDownload as PowerPoint slide