Received 9 August 2008
The title compound, [Et2NH2][(EtO)PO2(C6H5NH)] or C4H12N+·C8H11NO3P-, is a molecular salt with two anions containing PO3N groupings and two cations in the asymmetric unit. A network of N-HO hydrogen bonds link the cations and anions into a two-dimensional network.
For the use of N-substituted phosphoramidic acids in the synthesis of pyrophosphate groups, see: Quin & Jankowski (1994). For a corresponding dimer complex with similar P-O and P-N connections, see: Andrianov et al. (1977).
Data collection: SMART (Bruker, 1996); cell refinement: SAINT (Bruker, 1996); data reduction: SAINT; program(s) used to solve structure: SHELXS97 (Sheldrick, 2008); program(s) used to refine structure: SHELXL97 (Sheldrick, 2008); molecular graphics: SHELXTL (Sheldrick, 2008); software used to prepare material for publication: SHELXTL.
Supplementary data and figures for this paper are available from the IUCr electronic archives (Reference: EZ2138 ).
The authors thank the NSFFPC (No. 2003 F006) and the SRP program of the SCUT for financial support.
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