Cc1ccc(C(C)C)c(OCc2n[n+](CC(=O)c3ccc(OC(F)F)cc3)c3n2CCCCC3)c1.[Br-]
The donor in a hydrogen bond is usually a strongly electronegative atom such as N, O, or F that is covalently bonded to a hydrogen bond. How many hydrogen bond donors does the molecule have?