O=[N+]([O-])c1ccc(NN/N=N/c2ccc(-c3nc4ccccc4[nH]3)cc2)c([N+](=O)[O-])c1
For non-ionizable compounds Log P = Log D throughout pH range, whereas for ionizable compounds LogD takes into account the partition of both ionized and non-ionized forms.  What is logD of this molecule?