O=[N+]([O-])c1cccc(-c2oc(/C=N/c3ccccc3)c([N+](=O)[O-])c2-c2cccc([N+](=O)[O-])c2)c1
Log D is a distribution coefficient widely used to measure the lipophilicity of ionizable compounds, where the partition is a function of the pH. What is the log D of this molecule?