有很强吸湿性，650℃熔融，650℃以上升华，在空气中加热即释放出氯化氢气体并生成四氧化三锰。溶于水、醇，不溶于醚。 A novel high-spin hexanuclear Mn(III) cluster, [NaMn6(OMe)12(dbm)6]+, was synthesized via MnCl2 oxidation with simultaneous NaOMe promoted aggregation. This cluster has an unprecedented cyclic structure and 24 unpaired electrons in its ground state. Also used in the formation of an active Mn(0) species useful for radical cyclization reactions.