Structure of seven organic acid-base adducts formed between acids, 2-aminophenol, and 2-amino-4-chlorophenol

►Seven organic acid-base adducts have been prepared and structurally characterized. ► The hydrogen bond interaction modes in all of the adducts have been ascertained.► The classical hydrogen bonds are the major forces in all of the structures. ► The secondary interactions also play important roles in the packing of the adducts.