O=C(C=P(c1ccccc1)(c1ccccc1)c1ccccc1)c1ccc(-c2cccc([N+](=O)[O-])c2)cc1
For non-ionizable compounds Log P = Log D throughout pH range, whereas for ionizable compounds Log D takes into account the partition of both ionized and non-ionized forms.  What is log D of this molecule?