Figure 7From: Design of co-crystals/salts of some Nitrogenous bases and some derivatives of thiophene carboxylic acids through a combination of hydrogen and halogen bonds(a): R 2 2(9) motif in (5a) and the formation of tetrameric super molecule. (b) Adjacent tetrameric super molecules linked by Cl…π interactions between Cl of 5-TPC of one chain and phenyl ring of BA of another chain.Back to article page