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Both dihydrates (NH4)Mg(HSO4)(SO4)(H2O)2 and NaSc(CrO4)2(H2O)2 comprise kröhnkite-type tetrahedral–octahedral chains made up of {SO4/SO3(OH),[MgO4(OH2)2]} and {CrO4,[ScO4(OH2)2]} building units, respectively. (NH4)Mg(HSO4)(SO4)(H2O)2 shows a reversible phase transition between 100 and 296 K. Click to show full abstract
Both dihydrates (NH4)Mg(HSO4)(SO4)(H2O)2 and NaSc(CrO4)2(H2O)2 comprise kröhnkite-type tetrahedral–octahedral chains made up of {SO4/SO3(OH),[MgO4(OH2)2]} and {CrO4,[ScO4(OH2)2]} building units, respectively. (NH4)Mg(HSO4)(SO4)(H2O)2 shows a reversible phase transition between 100 and 296 K.