organic compounds
N,N′-Dibenzyl-N,N′-dimethyl-N′′-(methylsulfonyl)phosphoric triamide
aDepartment of Chemistry, Ferdowsi University of Mashhad, Mashhad 91779, Iran, and bDipartimento di Chimica Inorganica, Vill. S. Agata, Salita Sperone 31, Università di Messina, 98166 Messina, Italy
*Correspondence e-mail: mehrdad_pourayoubi@yahoo.com
In the title compound, C17H24N3O3PS, the P and the S atoms are each in a distorted tetrahedral environment and the N atoms display sp2 character. The phosphoryl group and the NH unit are anti with respect to one another. The dihedral angle between the mean planes of the benzene rings is 31.08 (8)°. The crystal packing is stabilized by N—H⋯O hydrogen bonds, forming an extended chain parallel to the b axis.
Related literature
For phosphoramidates having a P(O)[N(CH3)(CH2C6H5)]2 moiety, see: Pourayoubi et al. (2010); Gholivand et al. (2005). For bond lengths in a sulfonamide compound, see: Ibrahim et al. (2011) and references cited therein.
Experimental
Crystal data
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Data collection: APEX2 (Bruker, 2005); cell SAINT (Bruker, 2005); data reduction: SAINT; program(s) used to solve structure: SHELXS97 (Sheldrick, 2008); program(s) used to refine structure: SHELXL97 (Sheldrick, 2008); molecular graphics: Mercury (Macrae et al., 2008); software used to prepare material for publication: SHELXTL (Sheldrick, 2008) and enCIFer (Allen et al., 2004).
Supporting information
10.1107/S1600536811015832/jj2084sup1.cif
contains datablocks I, global. DOI:Structure factors: contains datablock I. DOI: 10.1107/S1600536811015832/jj2084Isup2.hkl
CH3S(O)2NHP(O)Cl2 was synthesized from the reaction between phosphorus pentachloride (16.7 mmol) and methanesulfonamide (16.7 mmol) in dry CCl4 at 353 K (3 h) and then treated with formic acid 85% (16.7 mmol) at ice bath temperature.
To a solution of CH3S(O)2NHP(O)Cl2 (2.35 mmol) in dry chloroform (30 ml), a solution of N-methylbenzylamine (9.40 mmol) in the same solvent (10 ml) was added at ice bath temperature. After 4 h stirring, the solvent was removed and the product was washed with distilled water and recrystallized from CH3CN/CHCl3 at room temperature.
H atoms were placed in calculated positions and included in the
in a riding-model approximation with CH = 0.93, CH2 = 0.97, CH3 = 0.96 Å or N—H = 0.86 Å with Uiso(H) parameters equal to 1.5Ueq(C) for methyl H atoms and 1.2Ueq(C,N) for other H atoms.Data collection: APEX2 (Bruker, 2005); cell
SAINT (Bruker, 2005); data reduction: SAINT (Bruker, 2005); program(s) used to solve structure: SHELXS97 (Sheldrick, 2008); program(s) used to refine structure: SHELXL97 (Sheldrick, 2008); molecular graphics: Mercury (Macrae et al., 2008); software used to prepare material for publication: SHELXTL (Sheldrick, 2008) and enCIFer (Allen et al., 2004).C17H24N3O3PS | F(000) = 808 |
Mr = 381.42 | Dx = 1.323 Mg m−3 |
Orthorhombic, P212121 | Mo Kα radiation, λ = 0.71073 Å |
Hall symbol: P 2ac 2ab | Cell parameters from 9705 reflections |
a = 8.5343 (4) Å | θ = 2.6–29.5° |
b = 10.1800 (5) Å | µ = 0.27 mm−1 |
c = 22.0455 (10) Å | T = 296 K |
V = 1915.29 (16) Å3 | Irregular, colourless |
Z = 4 | 0.47 × 0.38 × 0.30 mm |
Bruker APEXII CCD diffractometer | 4155 independent reflections |
Radiation source: fine-focus sealed tube | 3937 reflections with I > 2σ(I) |
Graphite monochromator | Rint = 0.060 |
ϕ and ω scans | θmax = 27.0°, θmin = 2.2° |
Absorption correction: multi-scan (SADABS; Sheldrick, 2004) | h = −10→10 |
Tmin = 0.700, Tmax = 0.746 | k = −13→13 |
65627 measured reflections | l = −28→28 |
Refinement on F2 | Secondary atom site location: difference Fourier map |
Least-squares matrix: full | Hydrogen site location: inferred from neighbouring sites |
R[F2 > 2σ(F2)] = 0.032 | H-atom parameters constrained |
wR(F2) = 0.094 | w = 1/[σ2(Fo2) + (0.0564P)2 + 0.4498P] where P = (Fo2 + 2Fc2)/3 |
S = 1.08 | (Δ/σ)max = 0.001 |
4155 reflections | Δρmax = 0.30 e Å−3 |
226 parameters | Δρmin = −0.22 e Å−3 |
0 restraints | Absolute structure: Flack (1983), 1769 Friedel pairs |
Primary atom site location: structure-invariant direct methods | Absolute structure parameter: 0.02 (7) |
C17H24N3O3PS | V = 1915.29 (16) Å3 |
Mr = 381.42 | Z = 4 |
Orthorhombic, P212121 | Mo Kα radiation |
a = 8.5343 (4) Å | µ = 0.27 mm−1 |
b = 10.1800 (5) Å | T = 296 K |
c = 22.0455 (10) Å | 0.47 × 0.38 × 0.30 mm |
Bruker APEXII CCD diffractometer | 4155 independent reflections |
Absorption correction: multi-scan (SADABS; Sheldrick, 2004) | 3937 reflections with I > 2σ(I) |
Tmin = 0.700, Tmax = 0.746 | Rint = 0.060 |
65627 measured reflections |
R[F2 > 2σ(F2)] = 0.032 | H-atom parameters constrained |
wR(F2) = 0.094 | Δρmax = 0.30 e Å−3 |
S = 1.08 | Δρmin = −0.22 e Å−3 |
4155 reflections | Absolute structure: Flack (1983), 1769 Friedel pairs |
226 parameters | Absolute structure parameter: 0.02 (7) |
0 restraints |
Geometry. All s.u.'s (except the s.u. in the dihedral angle between two l.s. planes) are estimated using the full covariance matrix. The cell s.u.'s are taken into account individually in the estimation of s.u.'s in distances, angles and torsion angles; correlations between s.u.'s in cell parameters are only used when they are defined by crystal symmetry. An approximate (isotropic) treatment of cell s.u.'s is used for estimating s.u.'s involving l.s. planes. |
Refinement. Refinement of F2 against ALL reflections. The weighted R-factor wR and goodness of fit S are based on F2, conventional R-factors R are based on F, with F set to zero for negative F2. The threshold expression of F2 > 2σ(F2) is used only for calculating R-factors(gt) etc. and is not relevant to the choice of reflections for refinement. R-factors based on F2 are statistically about twice as large as those based on F, and R- factors based on ALL data will be even larger. |
x | y | z | Uiso*/Ueq | ||
S | −0.14987 (6) | 0.66473 (5) | 0.33606 (2) | 0.03622 (13) | |
P | 0.01450 (6) | 0.58351 (4) | 0.22593 (2) | 0.02755 (11) | |
O2 | −0.1835 (2) | 0.78944 (16) | 0.36311 (8) | 0.0531 (5) | |
O3 | −0.2779 (2) | 0.58363 (18) | 0.31763 (9) | 0.0548 (4) | |
O1 | 0.0074 (2) | 0.45080 (12) | 0.25313 (7) | 0.0376 (3) | |
N2 | −0.1005 (2) | 0.61222 (17) | 0.16850 (8) | 0.0374 (4) | |
N1 | 0.19197 (19) | 0.61606 (16) | 0.20271 (8) | 0.0357 (4) | |
C16 | −0.2309 (3) | 0.7047 (3) | 0.16690 (14) | 0.0598 (7) | |
H16A | −0.2367 | 0.7506 | 0.2049 | 0.090* | |
H16B | −0.3268 | 0.6577 | 0.1601 | 0.090* | |
H16C | −0.2149 | 0.7666 | 0.1346 | 0.090* | |
C11 | −0.4106 (4) | 0.2282 (3) | 0.07992 (17) | 0.0756 (10) | |
H11 | −0.4817 | 0.1609 | 0.0724 | 0.091* | |
C10 | −0.3104 (4) | 0.2678 (3) | 0.03513 (15) | 0.0733 (9) | |
H10 | −0.3123 | 0.2269 | −0.0026 | 0.088* | |
C9 | −0.2056 (3) | 0.3697 (3) | 0.04626 (12) | 0.0551 (6) | |
H9 | −0.1402 | 0.3989 | 0.0154 | 0.066* | |
C14 | −0.1979 (2) | 0.4282 (2) | 0.10302 (9) | 0.0377 (4) | |
C15 | −0.0776 (3) | 0.5341 (2) | 0.11360 (10) | 0.0420 (5) | |
H15A | 0.0251 | 0.4935 | 0.1155 | 0.050* | |
H15B | −0.0780 | 0.5928 | 0.0789 | 0.050* | |
C7 | 0.2255 (3) | 0.7384 (2) | 0.17023 (13) | 0.0479 (6) | |
H7A | 0.2714 | 0.8007 | 0.1984 | 0.058* | |
H7B | 0.1277 | 0.7753 | 0.1558 | 0.058* | |
C6 | 0.3355 (2) | 0.7211 (2) | 0.11683 (10) | 0.0370 (4) | |
C1 | 0.4198 (3) | 0.8292 (2) | 0.09625 (11) | 0.0451 (5) | |
H1 | 0.4106 | 0.9094 | 0.1161 | 0.054* | |
C2 | 0.5174 (3) | 0.8180 (3) | 0.04622 (12) | 0.0553 (6) | |
H2 | 0.5729 | 0.8907 | 0.0324 | 0.066* | |
C3 | 0.5322 (3) | 0.6990 (3) | 0.01694 (11) | 0.0621 (7) | |
H3 | 0.5980 | 0.6912 | −0.0165 | 0.074* | |
N3 | −0.0373 (2) | 0.69410 (14) | 0.27825 (7) | 0.0313 (3) | |
H | −0.0016 | 0.7726 | 0.2742 | 0.038* | |
C17 | −0.0341 (4) | 0.5731 (3) | 0.38565 (11) | 0.0583 (7) | |
H17A | 0.0536 | 0.6251 | 0.3986 | 0.087* | |
H17B | 0.0031 | 0.4958 | 0.3653 | 0.087* | |
H17C | −0.0952 | 0.5480 | 0.4203 | 0.087* | |
C8 | 0.3248 (3) | 0.5572 (3) | 0.23501 (12) | 0.0588 (7) | |
H8A | 0.2915 | 0.4778 | 0.2546 | 0.088* | |
H8B | 0.3631 | 0.6179 | 0.2649 | 0.088* | |
H8C | 0.4069 | 0.5375 | 0.2067 | 0.088* | |
C5 | 0.3510 (3) | 0.6022 (2) | 0.08697 (10) | 0.0448 (5) | |
H5 | 0.2952 | 0.5292 | 0.1002 | 0.054* | |
C4 | 0.4499 (3) | 0.5922 (3) | 0.03725 (11) | 0.0578 (6) | |
H4 | 0.4604 | 0.5120 | 0.0175 | 0.069* | |
C13 | −0.2991 (3) | 0.3855 (2) | 0.14752 (11) | 0.0478 (5) | |
H13 | −0.2951 | 0.4233 | 0.1859 | 0.057* | |
C12 | −0.4069 (3) | 0.2868 (3) | 0.13576 (15) | 0.0633 (8) | |
H12 | −0.4766 | 0.2604 | 0.1658 | 0.076* |
U11 | U22 | U33 | U12 | U13 | U23 | |
S | 0.0438 (3) | 0.0249 (2) | 0.0400 (2) | −0.0002 (2) | 0.0118 (2) | 0.00027 (19) |
P | 0.0334 (2) | 0.01673 (19) | 0.0325 (2) | −0.00014 (17) | 0.00382 (18) | −0.00090 (16) |
O2 | 0.0683 (12) | 0.0342 (8) | 0.0568 (9) | 0.0053 (8) | 0.0255 (9) | −0.0081 (7) |
O3 | 0.0429 (8) | 0.0435 (9) | 0.0780 (12) | −0.0137 (8) | 0.0150 (8) | −0.0002 (8) |
O1 | 0.0544 (8) | 0.0169 (6) | 0.0414 (7) | −0.0007 (6) | 0.0042 (7) | −0.0001 (5) |
N2 | 0.0398 (9) | 0.0332 (9) | 0.0393 (8) | 0.0046 (7) | −0.0017 (7) | −0.0013 (7) |
N1 | 0.0336 (8) | 0.0301 (8) | 0.0433 (9) | 0.0012 (7) | 0.0082 (7) | −0.0015 (7) |
C16 | 0.0598 (15) | 0.0479 (13) | 0.0715 (17) | 0.0193 (12) | −0.0217 (14) | −0.0054 (13) |
C11 | 0.083 (2) | 0.0558 (17) | 0.088 (2) | −0.0198 (16) | −0.0378 (19) | 0.0022 (16) |
C10 | 0.092 (2) | 0.0602 (17) | 0.0673 (18) | 0.0035 (17) | −0.0323 (18) | −0.0242 (15) |
C9 | 0.0606 (15) | 0.0588 (15) | 0.0460 (12) | 0.0044 (12) | −0.0048 (11) | −0.0095 (11) |
C14 | 0.0360 (10) | 0.0378 (10) | 0.0394 (10) | 0.0035 (9) | −0.0055 (8) | −0.0014 (8) |
C15 | 0.0426 (11) | 0.0498 (12) | 0.0335 (10) | −0.0064 (10) | 0.0038 (9) | −0.0025 (9) |
C7 | 0.0481 (12) | 0.0276 (10) | 0.0681 (15) | −0.0014 (9) | 0.0255 (12) | −0.0040 (10) |
C6 | 0.0321 (10) | 0.0344 (10) | 0.0445 (11) | 0.0045 (8) | 0.0053 (9) | 0.0037 (8) |
C1 | 0.0411 (11) | 0.0380 (11) | 0.0562 (13) | 0.0045 (10) | 0.0081 (10) | 0.0102 (10) |
C2 | 0.0521 (13) | 0.0568 (14) | 0.0572 (14) | 0.0027 (12) | 0.0138 (12) | 0.0231 (12) |
C3 | 0.0648 (17) | 0.0809 (19) | 0.0404 (12) | 0.0116 (15) | 0.0189 (12) | 0.0099 (13) |
N3 | 0.0405 (8) | 0.0157 (6) | 0.0376 (8) | −0.0018 (6) | 0.0083 (7) | −0.0012 (6) |
C17 | 0.090 (2) | 0.0473 (13) | 0.0379 (11) | 0.0056 (14) | −0.0010 (12) | 0.0081 (10) |
C8 | 0.0402 (12) | 0.0805 (19) | 0.0558 (14) | 0.0078 (13) | −0.0026 (11) | −0.0025 (13) |
C5 | 0.0418 (11) | 0.0420 (12) | 0.0505 (12) | 0.0027 (10) | 0.0077 (10) | −0.0021 (9) |
C4 | 0.0680 (16) | 0.0596 (16) | 0.0456 (12) | 0.0113 (13) | 0.0119 (11) | −0.0092 (12) |
C13 | 0.0491 (12) | 0.0486 (13) | 0.0456 (12) | −0.0100 (10) | −0.0059 (9) | 0.0022 (10) |
C12 | 0.0523 (15) | 0.0623 (17) | 0.0751 (18) | −0.0195 (13) | −0.0145 (13) | 0.0149 (14) |
S—O3 | 1.4287 (18) | C15—H15B | 0.9700 |
S—O2 | 1.4317 (16) | C7—C6 | 1.516 (3) |
S—N3 | 1.6236 (16) | C7—H7A | 0.9700 |
S—C17 | 1.744 (3) | C7—H7B | 0.9700 |
P—O1 | 1.4794 (13) | C6—C5 | 1.384 (3) |
P—N2 | 1.6285 (18) | C6—C1 | 1.390 (3) |
P—N1 | 1.6326 (17) | C1—C2 | 1.387 (3) |
P—N3 | 1.6714 (15) | C1—H1 | 0.9300 |
N2—C16 | 1.458 (3) | C2—C3 | 1.378 (4) |
N2—C15 | 1.461 (3) | C2—H2 | 0.9300 |
N1—C7 | 1.465 (3) | C3—C4 | 1.369 (4) |
N1—C8 | 1.467 (3) | C3—H3 | 0.9300 |
C16—H16A | 0.9600 | N3—H | 0.8600 |
C16—H16B | 0.9600 | C17—H17A | 0.9600 |
C16—H16C | 0.9600 | C17—H17B | 0.9600 |
C11—C12 | 1.368 (5) | C17—H17C | 0.9600 |
C11—C10 | 1.367 (5) | C8—H8A | 0.9600 |
C11—H11 | 0.9300 | C8—H8B | 0.9600 |
C10—C9 | 1.392 (4) | C8—H8C | 0.9600 |
C10—H10 | 0.9300 | C5—C4 | 1.387 (3) |
C9—C14 | 1.387 (3) | C5—H5 | 0.9300 |
C9—H9 | 0.9300 | C4—H4 | 0.9300 |
C14—C13 | 1.378 (3) | C13—C12 | 1.387 (4) |
C14—C15 | 1.507 (3) | C13—H13 | 0.9300 |
C15—H15A | 0.9700 | C12—H12 | 0.9300 |
O3—S—O2 | 118.53 (12) | C6—C7—H7A | 108.8 |
O3—S—N3 | 109.61 (10) | N1—C7—H7B | 108.8 |
O2—S—N3 | 106.39 (9) | C6—C7—H7B | 108.8 |
O3—S—C17 | 107.61 (13) | H7A—C7—H7B | 107.7 |
O2—S—C17 | 109.08 (12) | C5—C6—C1 | 119.2 (2) |
N3—S—C17 | 104.79 (12) | C5—C6—C7 | 121.98 (19) |
O1—P—N2 | 117.02 (9) | C1—C6—C7 | 118.82 (19) |
O1—P—N1 | 110.51 (9) | C2—C1—C6 | 120.3 (2) |
N2—P—N1 | 106.20 (9) | C2—C1—H1 | 119.8 |
O1—P—N3 | 108.94 (8) | C6—C1—H1 | 119.8 |
N2—P—N3 | 104.84 (9) | C3—C2—C1 | 120.0 (2) |
N1—P—N3 | 108.98 (8) | C3—C2—H2 | 120.0 |
C16—N2—C15 | 115.69 (19) | C1—C2—H2 | 120.0 |
C16—N2—P | 126.49 (17) | C4—C3—C2 | 119.8 (2) |
C15—N2—P | 117.76 (15) | C4—C3—H3 | 120.1 |
C7—N1—C8 | 115.7 (2) | C2—C3—H3 | 120.1 |
C7—N1—P | 120.48 (14) | S—N3—P | 125.05 (9) |
C8—N1—P | 118.83 (16) | S—N3—H | 117.5 |
N2—C16—H16A | 109.5 | P—N3—H | 117.5 |
N2—C16—H16B | 109.5 | S—C17—H17A | 109.5 |
H16A—C16—H16B | 109.5 | S—C17—H17B | 109.5 |
N2—C16—H16C | 109.5 | H17A—C17—H17B | 109.5 |
H16A—C16—H16C | 109.5 | S—C17—H17C | 109.5 |
H16B—C16—H16C | 109.5 | H17A—C17—H17C | 109.5 |
C12—C11—C10 | 120.5 (3) | H17B—C17—H17C | 109.5 |
C12—C11—H11 | 119.8 | N1—C8—H8A | 109.5 |
C10—C11—H11 | 119.8 | N1—C8—H8B | 109.5 |
C11—C10—C9 | 119.6 (3) | H8A—C8—H8B | 109.5 |
C11—C10—H10 | 120.2 | N1—C8—H8C | 109.5 |
C9—C10—H10 | 120.2 | H8A—C8—H8C | 109.5 |
C14—C9—C10 | 120.6 (3) | H8B—C8—H8C | 109.5 |
C14—C9—H9 | 119.7 | C6—C5—C4 | 119.9 (2) |
C10—C9—H9 | 119.7 | C6—C5—H5 | 120.1 |
C13—C14—C9 | 118.5 (2) | C4—C5—H5 | 120.1 |
C13—C14—C15 | 122.87 (19) | C3—C4—C5 | 120.8 (2) |
C9—C14—C15 | 118.6 (2) | C3—C4—H4 | 119.6 |
N2—C15—C14 | 115.23 (18) | C5—C4—H4 | 119.6 |
N2—C15—H15A | 108.5 | C14—C13—C12 | 120.8 (2) |
C14—C15—H15A | 108.5 | C14—C13—H13 | 119.6 |
N2—C15—H15B | 108.5 | C12—C13—H13 | 119.6 |
C14—C15—H15B | 108.5 | C11—C12—C13 | 119.9 (3) |
H15A—C15—H15B | 107.5 | C11—C12—H12 | 120.0 |
N1—C7—C6 | 113.73 (16) | C13—C12—H12 | 120.0 |
N1—C7—H7A | 108.8 | ||
O1—P—N2—C16 | 114.6 (2) | P—N1—C7—C6 | −138.44 (18) |
N1—P—N2—C16 | −121.5 (2) | N1—C7—C6—C5 | 24.7 (3) |
N3—P—N2—C16 | −6.2 (2) | N1—C7—C6—C1 | −157.2 (2) |
O1—P—N2—C15 | −62.24 (18) | C5—C6—C1—C2 | 0.3 (3) |
N1—P—N2—C15 | 61.66 (17) | C7—C6—C1—C2 | −177.8 (2) |
N3—P—N2—C15 | 176.96 (15) | C6—C1—C2—C3 | −0.5 (4) |
O1—P—N1—C7 | 175.63 (16) | C1—C2—C3—C4 | 0.3 (4) |
N2—P—N1—C7 | 47.76 (19) | O3—S—N3—P | −41.70 (16) |
N3—P—N1—C7 | −64.70 (18) | O2—S—N3—P | −170.99 (13) |
O1—P—N1—C8 | −30.5 (2) | C17—S—N3—P | 73.54 (16) |
N2—P—N1—C8 | −158.39 (18) | O1—P—N3—S | −25.84 (16) |
N3—P—N1—C8 | 89.15 (19) | N2—P—N3—S | 100.16 (13) |
C12—C11—C10—C9 | −0.9 (5) | N1—P—N3—S | −146.48 (13) |
C11—C10—C9—C14 | 2.4 (5) | C1—C6—C5—C4 | 0.1 (4) |
C10—C9—C14—C13 | −1.7 (4) | C7—C6—C5—C4 | 178.2 (2) |
C10—C9—C14—C15 | 177.4 (2) | C2—C3—C4—C5 | 0.2 (4) |
C16—N2—C15—C14 | −72.4 (3) | C6—C5—C4—C3 | −0.4 (4) |
P—N2—C15—C14 | 104.8 (2) | C9—C14—C13—C12 | −0.3 (4) |
C13—C14—C15—N2 | −15.1 (3) | C15—C14—C13—C12 | −179.4 (2) |
C9—C14—C15—N2 | 165.9 (2) | C10—C11—C12—C13 | −1.2 (5) |
C8—N1—C7—C6 | 66.9 (3) | C14—C13—C12—C11 | 1.8 (4) |
D—H···A | D—H | H···A | D···A | D—H···A |
N3—H···O1i | 0.86 | 1.91 | 2.7152 (19) | 155 |
Symmetry code: (i) −x, y+1/2, −z+1/2. |
Experimental details
Crystal data | |
Chemical formula | C17H24N3O3PS |
Mr | 381.42 |
Crystal system, space group | Orthorhombic, P212121 |
Temperature (K) | 296 |
a, b, c (Å) | 8.5343 (4), 10.1800 (5), 22.0455 (10) |
V (Å3) | 1915.29 (16) |
Z | 4 |
Radiation type | Mo Kα |
µ (mm−1) | 0.27 |
Crystal size (mm) | 0.47 × 0.38 × 0.30 |
Data collection | |
Diffractometer | Bruker APEXII CCD diffractometer |
Absorption correction | Multi-scan (SADABS; Sheldrick, 2004) |
Tmin, Tmax | 0.700, 0.746 |
No. of measured, independent and observed [I > 2σ(I)] reflections | 65627, 4155, 3937 |
Rint | 0.060 |
(sin θ/λ)max (Å−1) | 0.639 |
Refinement | |
R[F2 > 2σ(F2)], wR(F2), S | 0.032, 0.094, 1.08 |
No. of reflections | 4155 |
No. of parameters | 226 |
H-atom treatment | H-atom parameters constrained |
Δρmax, Δρmin (e Å−3) | 0.30, −0.22 |
Absolute structure | Flack (1983), 1769 Friedel pairs |
Absolute structure parameter | 0.02 (7) |
Computer programs: APEX2 (Bruker, 2005), SAINT (Bruker, 2005), SHELXS97 (Sheldrick, 2008), SHELXL97 (Sheldrick, 2008), Mercury (Macrae et al., 2008), SHELXTL (Sheldrick, 2008) and enCIFer (Allen et al., 2004).
D—H···A | D—H | H···A | D···A | D—H···A |
N3—H···O1i | 0.86 | 1.91 | 2.7152 (19) | 155 |
Symmetry code: (i) −x, y+1/2, −z+1/2. |
Acknowledgements
Support of this investigation by Ferdowsi University of Mashhad is gratefully acknowledged.
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Structure determination of the title compound, CH3S(O)2NHP(O)[N(CH3)(CH2C6H5)]2 (Fig. 1), was performed as a part of a project in our laboratory on the synthesis of new phosphoramidate compounds having a P(O)[N(CH3)(CH2C6H5)]2 moiety (Pourayoubi et al., 2010).
The P═O and P—N bond lengths are comparable to those in similar phosphoramidates of the formula XP(O)[N(CH3)(CH2C6H5)]2 [where X = Cl, C6H5C(O)NH, CCl3C(O)NH] (Gholivand et al., 2005). The P—N1 and P—N2 bonds (with bond lengths of 1.6326 (17) Å and 1.6285 (18) Å) are shorter than the P—N3 bond (1.6714 (15) Å). The S═O bond lengths of 1.4317 (16) Å & 1.4287 (18) Å are standard for sulfonamide compounds (Ibrahim et al., 2011).
Each of the phosphorus and sulfur atoms has a distorted tetrahedral configuration. The surrounding bond angles are in the range of 104.84 (9)° to 117.02 (9)° around the P atom and 104.79 (12)° to 118.53 (12)° for the S atom. The average of surrounding angles around the tertiary nitrogen atom N2 (which is about 120°) shows that it is bonded in an essentially planar geometry; whereas, the environment of N1 is slightly deviated from planarity (average of bond angles is 118.3°). Furthermore, the S—N3—P angle is 125.05 (9)°. The dihedral angle between the mean planes of the benzene rings is 31.08 (8)°.
The phosphoryl group and the NH unit adopt the anti orientations with respect to each other. Crystal packing is stabilized by N—H···O hydrogen bonds, forming an extended chain parallel to the b axis (Fig. 2).