O=C(Nc1cccc([N+](=O)[O-])c1)C(=O)C(C(=O)c1ccccc1F)C1OC(=O)C2C=CC=CC21
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?