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Figure 4
(a) The hydrogen-bonded layer in the structure of (II)[link], showing how the pyrazolium and aqua hydrogen-bond donors are situated between the bulky [SiMo12O40]4− anions (depicted in a polyhedral representation). (b) A projection onto the ab plane, showing the [H2Me4bpz]2+ tectons as links between successive hydrogen-bonded layers. N and O atoms are shaded grey and dashed lines indicate hydrogen bonding. C-bound H atoms have been omitted for clarity.

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ISSN: 2053-2296
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