Cyclo­hex­yl(meth­yl)ammonium {bis­[cyclo­hex­yl(meth­yl)amino]­phosphor­yl}(4-methyl­phenyl­sulfon­yl)aza­nide

In the anion of the title salt, C7H16N+·C21H35N3O3PS−, the P and S atoms are both in distorted tetra­hedral environments and the angles at the tertiary N atoms confirm their sp 2 character. The two S=O groups are in syn and gauche conformations with respect to the phosphoryl group. In the crystal, N—H⋯O(=S) and N—H⋯O(=P) hydrogen bonds involving two anions and two cations form a centrosymmetric four-component cluster

N,N,N′,N′-Tetra­ethyl-N′′-(2-fluoro­benzo­yl)phospho­ric triamide

In the title compound, C15H25FN3O2P, the phosphoryl group is in an anti and syn orientation to the C=O and N—H groups, respectively. The P atom is in a distorted tetra­hedral environment. One of the ethyl groups is disordered over two sets of sites with refined occupancies of 0.755 (6) and 0.245 (6). In addition, the F atom was refined as disordered with occupancies fixed at 0.9 and 0.1. This disorder corresponds to a rotation of approximately 180° of the fluoro­benzene ring about its connecting C—C bond. In the crystal, pairs of inter­molecular N—H⋯O(=P) hydrogen bonds form centrosymmetric dimers

N-(2,6-Difluoro­benzo­yl)-P,P-bis­(pyrrolidin-1-yl)phosphinic amide

The phosphoryl and carbonyl groups in the title compound, C15H20F2N3O2P, are anti with respect to each other (but the P- and C-groups are separated by another atom) and the P atom is in a tetra­hedral coordination environment. Two C atoms in one of the pyrrolidinyl fragments are disordered over two sets of sites with occupancies of 0.746 (8) and 0.254 (8). The environments of the pyrrolidinyl N atoms show a slight deviation from planarity and none of the three N atoms is involved in any hydrogen bond as an acceptor. In the crystal, pairs of inter­molecular N—H⋯O hydrogen bonds form inversion dimers

N,N′-Dicyclo­hexyl-N′′-(2,6-difluoro­benzo­yl)-N,N′-dimethyl­phospho­ric triamide

In the title mol­ecule, C21H32F2N3O2P, the P=O and N—H groups are syn with respect to each other, and the P atom is bonded in a distorted tetra­hedral environment. The phosphoryl group adopts an anti orientation with respect to the carbonyl group. The angles at the tertiary N atoms (with bond-angle sums of 358.4 and 357.0°) confirm their sp 2 character. In the crystal, inversion dimers linked by pairs of N—H⋯O hydrogen bonds generate R 2 2(8) loops

N,N′-Di-tert-butyl-N′′-(2,6-difluoro­benzo­yl)phospho­ric triamide

In the title compound, C15H24F2N3O2P, the phosphoryl and carbonyl groups adopt anti positions relative to each other. The P atom is in a tetra­hedral coordination environment and the environment of each N atom is essentially planar. In the crystal, adjacent mol­ecules are linked via N—H⋯O=P and N—H⋯O=C hydrogen bonds into an extended chain parallel to the a axis. The crystal studied was a non-merohedral twin with a minor twin component of 36.4 (1)%

N-(2-Fluoro­benzo­yl)-N′,N′′-bis­(4-methyl­phen­yl)phospho­ric triamide

The P atom in the title compound, C21H21FN3O2P, is in a tetra­hedral coordination environment and the environment of each N atom is essentially planar (sums of angles = 359.7, 359.9 and 358.4°). The phosphoryl and carbonyl groups adopt anti orientations with respect to each other. In the crystal, adjacent mol­ecules are linked via N—H⋯O=P and two N—H⋯O=C hydrogen bonds into an extended chain parallel to the a axis

O-Phenyl (tert-butyl­amido)(p-tolyl­amido)­phosphinate

In the title mol­ecule, C17H23N2O2P, the P atom has a distorted tetra­hedral environment. The P—N bond to the tolyl­amido fragment is 1.642 (4) Å while that to the butyl­amido fragment is 1.629 (3) Å. The dihedral angle between the two benzene rings is 82.3 (2)°. In the crystal, adjacent mol­ecules are linked via weak N—H⋯(O)P and N—H⋯N hydrogen-bonding inter­actions into an extended chain parallel to the b axis. The three methyl groups of the tert-butyl­amido substituent are disordered over two sets of sites with equal occupancies. The crystal studied was found to be a non-merohedral twin with the minor twin component = 23.1 (1)%