SMMs heterometallic

Despite the success in the preparation of SMMs achieved during the last decade, it is significant that the first identified member [Mn OAc] (1) [2] remains the one with the highest observed blocking temperature. In the search for new and improved SMMs, synthesis has been expanded toward heterometallic complexes and other synthetic methods. 

In the past 5 years, a rational synthetic approach has been developed to obtain SMM and SCM systems [48]. This research project has led to a complete family of SCM compounds related to the original SCM compound described above [Mn2(saltmen)2Ni(pao)2(L)2](A)2 (A = CIO4 with L = 4-picoline, 4-t-butylpyridine, or N-methylimidazole and L = pyridine with A" = BF, PFg or ReO ]) [46]. The magnetic properties of these compounds have been studied in details highlighting a similar SCM behavior of these heterometallic chains independently of their inter-chain environments. 

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