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Microwave-Assisted Synthesis, Crystal Structure and Magnetic Behavior of a Schiff Base Heptanuclear Cobalt Cluster

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Abstract

The reaction of Co(ClO4)2·6H2O with 2-hydroxy-3-methoxy-benzaldehyde and an aqueous solution of methylamine in acetonitrile/MeOH under microwave irradiation and controlled temperature/pressure leads to formation of heptanuclear cobalt cluster [Co7(mmp)6(CH3O)6]·(ClO4)2 (1) (mmp is 2-methoxy-6-methyliminomethyl-phenol anion) in only 20 min and also results in higher yields in contrast to other synthesis methods. Complex 1 displays dominant ferromagnetic interactions through μ 3-O and μ 2-O (oxidophenyl) binding modes.

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Acknowledgments

This work was financially supported by the National Nature Science Foundation of China (No. 21161006), Program for Excellent Talents in Guangxi Higher Education Institutions (Gui Jiao Ren [2012]41).

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Correspondence to Shu-Hua Zhang.

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Wang, W., Hai, H., Zhang, SH. et al. Microwave-Assisted Synthesis, Crystal Structure and Magnetic Behavior of a Schiff Base Heptanuclear Cobalt Cluster. J Clust Sci 25, 357–365 (2014). https://doi.org/10.1007/s10876-013-0614-z

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