Received 23 November 2012
The molecular structure of the title compound, C22H34N3OP, adopts a distorted tetrahedral geometry at the P atom, with the most noticeable distortion being for the O-P-N angle [117.53 (10)°]. An effective cone angle of 187° was calculated for the compound. In the crystal, weak C-HO interactions create infinite chains along , whereas C-H interactions propagating in  generate a herringbone motif.
For the synthesis of ligands derived from phosphinic amides, see: Williams et al. (2009). For background to DoM technology, see: Snieckus (1990). For cone angles, see: Tolman (1977); Otto (2001).
Data collection: APEX2 (Bruker, 2005); cell refinement: SAINT-Plus (Bruker, 2004); data reduction: SAINT-Plus and XPREP (Bruker, 2004); program(s) used to solve structure: SIR97 (Altomare et al., 1999); program(s) used to refine structure: SHELXL97 (Sheldrick, 2008); molecular graphics: DIAMOND (Brandenburg & Putz, 2005); software used to prepare material for publication: publCIF (Westrip, 2010) and WinGX (Farrugia, 2012).
Supplementary data and figures for this paper are available from the IUCr electronic archives (Reference: BT6869 ).
The University of the Free State is thanked for the use of their diffractometer. Financial assistance from Sasol, THRIP and the Research Fund of the University of Johannesburg is gratefully acknowledged.
Altomare, A., Burla, M. C., Camalli, M., Cascarano, G. L., Giacovazzo, C., Guagliardi, A., Moliterni, A. G. G., Polidori, G. & Spagna, R. (1999). J. Appl. Cryst. 32, 115-119.
Brandenburg, K. & Putz, H. (2005). DIAMOND. Crystal Impact GbR, Bonn, Germany.
Bruker (2004). SADABS, SAINT-Plus and XPREP. Bruker AXS Inc., Madison, Wisconsin, USA.
Bruker (2005). APEX2. Bruker AXS Inc., Madison, Wisconsin, USA.
Farrugia, L. J. (2012). J. Appl. Cryst. 45, 849-854.
Flack, H. D. (1983). Acta Cryst. A39, 876-881.
Otto, S. (2001). Acta Cryst. C57, 793-795.
Sheldrick, G. M. (2008). Acta Cryst. A64, 112-122.
Snieckus, V. (1990). Chem. Rev. 90, 879-933.
Tolman, C. A. (1977). Chem. Rev. 77, 313-348.
Westrip, S. P. (2010). J. Appl. Cryst. 43, 920-925.
Williams, D. B. G., Evans, S. J., De Bod, H., Mokhadinyana, M. S. & Hughes, T. (2009). Synthesis, 18, 3106-3112.