Figure 4
(a) The symmetrical tetrahedral {Mn5} units in compound (I). (b) The chiral tetrahedral {Mn5} unit in β-Mn(OAc)2. Abbreviations denote corner-sharing (cs), edge-sharing (es) and face-sharing (fs) polyhedra. [Symmetry codes: (ii) x − , y, − z; (v) −x, y + , 1 − z; (A) x + , − y, 1 − z; (B) −x, y + , − z.] |