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Figure 3
Arrrangement of ion pairs (the green ball and the red ball represent the chloride ion and the centroid of the dihydropyrimidinium cation part, respectively) in (a) A form (I) and (b) A form (II). The blue arrows show the direction of the cation–anion chain.

Journal logoSTRUCTURAL SCIENCE
CRYSTAL ENGINEERING
MATERIALS
ISSN: 2052-5206
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