Cc1cc2[nH]c3c(C#N)c(-c4ccccc4)c(/N=N/c4ccc(F)cc4)c(=O)n3c2cc1C
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?