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Scheme 2 | Chemistry Central Journal

Scheme 2

From: Design of co-crystals/salts of some Nitrogenous bases and some derivatives of thiophene carboxylic acids through a combination of hydrogen and halogen bonds

Scheme 2

Supramolecular hetero dimers that can be formed between carboxylic acids/carboxylate and heterocyclic nitrogen: (a) carboxylic acid-aromatic nitrogen with R22(7) synthon (Synthon type-III)(b) pyridinium-carboxylate with R22(7) synthon (Synthon type-IV)(c) carboxylic acid-aromatic nitrogen with single point heterosynthon (Synthon type-V)and (d) pyridinium-carboxylate with single point heterosynthon (Synthon type-VI)

Supramolecular hetero dimers that can be formed between carboxylic acids/carboxylate and heterocyclic nitrogen: (a) carboxylic acid-aromatic nitrogen with R 2 2 (7) synthon (Synthon type-III)(b) pyridinium-carboxylate with R 2 2 (7) synthon (Synthon type-IV)(c) carboxylic acid-aromatic nitrogen with single point heterosynthon (Synthon type-V)and (d) pyridinium-carboxylate with single point heterosynthon (Synthon type-VI).

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BMC Chemistry

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