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N-(4-Fluoro-benzo-yl)-N',N''-diisopropyl-phospho-ric triamide.

ABSTRACT: The asymmetric unit of the title phospho-ric triamide, C13H21FN3O2P, consists of two independent mol-ecules. In each mol-ecule, the P=O group and the N-H unit belonging to the C(O)NHP(O) fragment are in a syn conformation with respect to each other. An intra-molecular N-H⋯O hydrogen bond occurs in each mol-ecule. The P atom adopts a distorted tetra-hedral environment. The methyl groups of an isopropyl fragment are disordered over two sets of sites with refined occupancies of 0.458 (5) and 0.542 (5). In the crystal, mol-ecules are linked through N-H⋯O(=P) and N-H⋯O(=C) hydrogen bonds into chains along [001].

SUBMITTER: Pourayoubi M

PROVIDER: S-EPMC3588995 | biostudies-literature |

REPOSITORIES: biostudies-literature

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N-(2-Fluoro-benzo-yl)-N',N''-bis-(4-methyl-phen-yl)phospho-ric triamide.

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Project description:In the title compound, C(15)H(25)FN(3)O(2)P, 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 tetra-hedral 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 fluoro-benzene ring about its connecting C-C bond. In the crystal, pairs of inter-molecular N-H?O(=P) hydrogen bonds form centrosymmetric dimers.

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Project description:In the title compound, C(21)H(33)FN(3)O(2)P, the P atom has a distorted tetra-hedral environment and the N atoms display geometries consistent with a model of sp(2) hybridization (with bond-angle sums for the tertiary N atoms of 357.8 and 358.7°). The phosphoryl and carbonyl groups are anti with respect to each other. In the crystal, inversion dimers linked by pairs of N-H⋯O hydrogen bonds generate R(2) (2)(8) loops.

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Project description:In the title compound, C(15)H(24)F(2)N(3)O(2)P, the phosphoryl and carbonyl groups adopt anti positions relative to each other. The P atom is in a tetra-hedral coordination environment and the environment of each N atom is essentially planar. In the crystal, adjacent mol-ecules 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)%.

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N,N,N',N'-Tetra-benzyl-N''-(2,6-difluoro-benzo-yl)phospho-ric triamide.

Project description:In the C(O)NHP(O) fragment of the title compound, C(35)H(32)F(2)N(3)O(2)P, the P-N bond is longer and the O-P-N angle is contracted compared with the other two P-N bonds and O-P-N angles. The P atom adopts a distorted tetra-hedral environment and the phosphoryl and carbonyl groups are anti with respect to each other. The two tertiary N atoms of the dibenzyl-amido groups show sp(2) character with a slight deviation from planarity. In the crystal, pairs of N-H?O(P) hydrogen bonds form inversion dimers.

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N,N'-Dibenzyl-N,N'-dimethyl-N''-(4-nitro-benzo-yl)phospho-ric triamide.

Project description: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.

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N,N'-Dibenzyl-N''-(2,6-difluoro-benzo-yl)-N,N'-dimethyl-phospho-ric triamide.

Project description:The phosphoryl and carbonyl groups in the title compound, C(23)H(24)F(2)N(3)O(2)P, are anti to each other. The P atom is in a tetra-hedral coordination environment and the environment of each N atom is essentially planar, the average bond angles at the two N atoms being 119.9 and 119.1°. The H atom of the C(=O)NHP(=O) group is involved in an inter-molecular -P=O?H-N- hydrogen bond, forming centrosymmetric dimers.

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N,N'-Dibenzyl-N''-(2,4-difluoro-benzo-yl)-N,N'-dimethyl-phospho-ric triamide.

Project description:In the title mol-ecule, C(23)H(24)F(2)N(3)O(2)P, the P atom is in a distorted tetra-hedral P(=O)(N)(N)(2) environment, with the bond angles around the P atom in the range 106.78 (11)-114.10 (13)°. The phosphoryl and carbonyl groups, which are separated by an N atom, adopt an anti orientation relative to each other. In the C(=O)NHP(=O) fragment, the P-N bond is longer [1.683 (2) Å] and the O-P-N angle is smaller [106.78 (11)°] than the other P-N bonds [1.613 (2) and 1.632 (2) Å] and O-P-N bond angles [114.10 (13) and 110.83 (12)°], respectively. The N atoms have sp(2) character. In the crystal, pairs of P=O⋯H-N hydrogen bonds form inversion dimers with R(2) (2)(8) ring motifs.

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