First copper(II) phase M ' 0.2Mn0.8PS3 center dot 0.25H(2)O and analogous M ' = Co-II, Ni-II and Zn-II materials obtained by microwave assisted synthesis

M'(0.2)Mn(0.8)PS(3)0.25H(2)O materials are obtained by a mild microwave assisted reaction (M' = Co-II, Ni-II, Cu-II, Zn-II), which permitted us to obtain the first copper(II) bimetallic phase. All these materials have a lower energy gap and antiferromagnetic interactions with lower values of the Weiss constant, than that of the pristine phase MnPS3.