Cc1cc(CS(=O)(=O)/C=C/c2ccccc2[N+](=O)[O-])c(CS(=O)(=O)/C=C/c2ccccc2[N+](=O)[O-])cc1C
Hydrogen bond acceptor: The atom, ion, or molecule component of a hydrogen bond which does not supply the bridging (shared) hydrogen atom. How many hydrogen bond acceptors does the molecule have?