Abstract
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±0.1K that was also confirmed by heat capacity measurements.
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