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Mixed-Valence Tetranuclear Manganese Single-Molecule Magnets

Jae Yoo, Akira Yamaguchi, Motohiro Nakano, J. Krzystek, William E. Streib, Louis-Claude Brunel, Hidehiko Ishimoto, George Christou, David N. Hendrickson

cond-matarXiv:cond-mat/0109496

Abstract

The preparations, X-ray structures, and detailed physical characterizations are presented for two new mixed-valence tetranuclear manganese complexes that function as single-molecule magnets (SMM's): [Mn4(hmp)6Br2(H2O)2]Br2.4H2O and [Mn4(6-me-hmp)6Cl4].4H2O, where hmp- is the anion of 2-hydroxymethylpyridine and 6-me-hmp- is the anion of 6-methyl-2-hydroxymethylpyridine.

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