title: p-Tolyl bis-(cyclo-hexyl-amido)-phosphinate.
abstract: The P atom in the title mol-ecule, C(19)H(31)N(2)O(2)P, is in a distorted tetra-hedral configuration with the bond angles in the range 101.48 (10)-118.58 (9)°. The N-H units have a syn orientation with respect to one another. In the crystal, mol-ecules are connected via two different inter-molecular N-H⋯O(P) hydrogen bonds into chains along the a axis in which the O atom of the P=O group acts as a double acceptor.
authors.forename: Akbar
authors.initials: A
authors.lastname: Raissi Shabari
authors.forename: Mehrdad
authors.initials: M
authors.lastname: Pourayoubi
authors.forename: Afsaneh
authors.initials: A
authors.lastname: Taghizadeh
authors.forename: Farnaz
authors.initials: F
authors.lastname: Ghoreishi
authors.forename: Banafsheh
authors.initials: B
authors.lastname: Vahdani
references.citation: Acta Crystallogr C. 2011 Jul;67(Pt 7):o265-72
references.pmid: 21727638
references.citation: Acta Crystallogr D Biol Crystallogr. 2009 Feb;65(Pt 2):148-55
references.pmid: 19171970
references.citation: Acta Crystallogr Sect E Struct Rep Online. 2011 Jun 1;67(Pt 6):o1502
references.pmid: 21754869
references.citation: Acta Crystallogr A. 1995 Jan 1;51 ( Pt 1):33-8
references.pmid: 7702794
references.citation: Acta Crystallogr A. 2008 Jan;64(Pt 1):112-22
references.pmid: 18156677