title: Dimethyl hydrazine-1,2-dicarboxyl-ate-triphenyl-phosphine oxide (1/1).
abstract: In the crystal structure of the title compound, C(4)H(8)N(2)O(4)·C(18)H(15)OP, two triphenyl-phosphine oxide mol-ecules and two dimethyl hydrazine-1,2-dicarboxyl-ate mol-ecules are connected via N-H⋯O hydrogen bonds of moderate strength and are related via a twofold rotational axis. Weak C(ar)-H⋯ O contacts strengthen the crystal structure.
authors.forename: Bogdan
authors.initials: B
authors.lastname: Doboszewski
authors.forename: James
authors.initials: J
authors.lastname: McGarrah
authors.forename: Alexander Y
authors.initials: AY
authors.lastname: Nazarenko
authors.forename: Fabio
authors.initials: F
authors.lastname: da Paixao Soares