C/C(=N/NC(=S)Nc1ccc([N+](=O)[O-])cc1)c1cccc(/C(C)=N\NC(=S)Nc2ccc([N+](=O)[O-])cc2)n1
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?