1 Chemistry, School of Biomedical, Biomolecular and Chemical Sciences, The University of Western Australia, 35 Stirling Highway, Crawley, Perth 6009, Western Australia, Australia.
The crystal structure of the title compound, C(22)H(20)N(4)O(2)P(2), consists of two independent half-mol-ecules, both of which lie on crystallographic inversion centres. There are no significant differences between the two mol-ecules.