title: Hydroxonium 1-ammonio-ethane-1,1-diyl-diphospho-nate.
abstract: The title complex, H(3)O(+)·NH(3)C(CH(3))(PO(3)H)(2) (-), contains a hydroxonium ion and an NH(3)C(CH(3))(PO(3)H)(2) (-) anion. The three H atoms of H(3)O(+) form a pseudo-tetra-hedron by being distributed over four positions with occupation factors of 0.75. Multiple N-H⋯O and O-H⋯O hydrogen bonds in the crystal structure form an intricate three-dimensional supra-molecular network.
authors.affiliation: Department of Chemical Engineering, Wuhan University of Science and Engineering, Wuhan 430073, People's Republic of China.
authors.forename: Ming
authors.initials: M
authors.lastname: Li
authors.forename: Wen
authors.initials: W
authors.lastname: Wen
authors.forename: Wuzu
authors.initials: W
authors.lastname: Ha
authors.forename: Liang
authors.initials: L
authors.lastname: Chang