The P atom in the title compound, C(23)H(25)N(4)O(4)P, is in a slightly distorted tetra-hedral coordination environment and the N atoms show sp(2) character. The phosphoryl group and the NH unit are syn with respect to each other. In the crystal, pairs of inter-molecular N-H⋯O(P) hydrogen bonds form centrosymmetric dimers.
The structure of the title compound, C(28)H(32)N(4)O(3)P(2), has been redetermined at 150 K, with much improved precision. The structure and mol-ecular packing of the title compound was previously determined using Cu Kα radiation, with an R value of 0.0933 [Cameron et al. (1978 ▶). Z. Naturforsch. Teil B, 33, 728-730]. The c-axis length in this structure… (More)
In the title compound, C(19)H(30)N(3)O(2)P, the central P atom has a distorted tetra-hedral configuration. The N atoms in both cyclo-hexyl-amide moieties exhibit a slight deviation [0.32 (7) and 0.44 (6) Å] from planarity, while the benzoyl-amide N atom is planar [0.11 (3) Å]. In the crystal, mol-ecules are linked via N-H⋯O(P) and N-H⋯O(C) hydrogen bonds,… (More)
The P atom in the title compound, C(21)H(33)N(4)O(4)P, is in a slightly distorted tetra-hedral coordination environment and the phosphoryl and carbonyl groups are anti to each other. The environment of each N atom is essentially planar (average angles of 119.9 and 118.4°). In the crystal structure, the H atom of the C(=O)NHP(=O) group is involved in an… (More)