N#CC1(Cc2ccccc2[N+](=O)[O-])c2ccccc2C2C(N1C(=O)c1ccccc1)C2(Cl)Cl
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?