A new manganese cluster topology capable of yielding high-spin species: mixed-valence [Mn7(OH)3Cl3(hmp)9]2 + with S ≥ 10

Abstract

The reaction between MnCl 2 ·4H 2 O, Hhmp (Hhmp = 2-hydroxymethylpyridine) and NEt 4 MnO 4 in MeCN gives NEt 4 [Mn 7 (OH) 3 Cl 3 (hmp) 9 ]Cl[MnCl 4 ] 1; the 4 Mn II , 3 Mn III cation comprises a Mn 6 hexagon containing a central Mn ion, and it possesses a S ≥ 10 ground state.