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Different types of stacking of the complex species: a) alternating ↑H2O and ↓H2O complex cations in 1a∙10H2O; b) interlocked polymeric chains in 1b∙3.5H2O; c) ↑H2O and ↓MeOH complex cations dimers connected in zig-zag fashion in 1c∙H2O∙2CH3OH; d) 1D pillars formed by stacking of all three complex species alternating in order ↑MeOH ↑SO4 ↓H2O in 1e∙H2O∙3CH3OH.
