Abstract

AbstractThermal dehydration of Mg(OAc)2·4H2O in atmospheric air or dehydration in EtOH produces basic magnesium acetate Mg5(μ3‐OH)2(OAc)8·nL (I) with an open three‐dimensional cage structure. X‐ray diffraction study with the use of synchrotron radiation reveals the structure of the hydrated compound Ia with partial occupancy of channels with water molecules (nL = 1.19H2O) as well as the structure of the solvate with EtOH (n = 2), Ib. All Mg atoms exhibit CNMg = 6. Heating of Ia in vacuo affords magnesium oxoacetate Mg3(μ4‐O)(OAc)4 (II). The crystal structure of II consists of linear μ4‐O‐bridged ribbons further connected to layers by bridging acetate groups, in which Mg atoms exhibit CNMg = 5 and 6.

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