In the crystal structure, the title compound, C
15H
17N
2O
4P, exists as a centrosymmetric dimer containing N—H
O=P hydrogen bonds. The amino N atom interacts with the doubly bonded phosphoryl O atom.
Supporting information
CCDC reference: 248275
Key indicators
- Single-crystal X-ray study
- T = 293 K
- Mean (C-C) = 0.005 Å
- R factor = 0.060
- wR factor = 0.139
- Data-to-parameter ratio = 13.7
checkCIF/PLATON results
No syntax errors found
Alert level C
PLAT340_ALERT_3_C Low Bond Precision on C-C bonds (x 1000) Ang ... 5
0 ALERT level A = In general: serious problem
0 ALERT level B = Potentially serious problem
1 ALERT level C = Check and explain
0 ALERT level G = General alerts; check
0 ALERT type 1 CIF construction/syntax error, inconsistent or missing data
0 ALERT type 2 Indicator that the structure model may be wrong or deficient
1 ALERT type 3 Indicator that the structure quality may be low
0 ALERT type 4 Improvement, methodology, query or suggestion
Data collection: SMART (Bruker, 2001); cell refinement: SAINT (Bruker, 2001); data reduction: SAINT; program(s) used to solve structure: SHELXS97 (Sheldrick, 1997); program(s) used to refine structure: SHELXL97 (Sheldrick, 1997); molecular graphics: ORTEP-3 (Farrugia, 1997); software used to prepare material for publication: SHELXL97.
Dimethyl [phenyl(pyridine-4-carboxamido)methyl]phosphonate
top
Crystal data top
C15H17N2O4P | F(000) = 672 |
Mr = 320.28 | Dx = 1.349 Mg m−3 |
Monoclinic, P21/n | Mo Kα radiation, λ = 0.71073 Å |
Hall symbol: -P 2yn | Cell parameters from 3217 reflections |
a = 10.748 (3) Å | θ = 2.5–27.3° |
b = 14.417 (4) Å | µ = 0.19 mm−1 |
c = 10.920 (3) Å | T = 293 K |
β = 111.280 (4)° | Chunk, colorless |
V = 1576.7 (8) Å3 | 0.21 × 0.19 × 0.15 mm |
Z = 4 | |
Data collection top
Bruker APEX area-detector diffractometer | 2753 independent reflections |
Radiation source: fine-focus sealed tube | 2514 reflections with I > 2σ(I) |
Graphite monochromator | Rint = 0.023 |
φ and ω scans | θmax = 25.0°, θmin = 2.3° |
Absorption correction: multi-scan (SADABS; Bruker, 2001) | h = −11→12 |
Tmin = 0.93, Tmax = 0.97 | k = −17→16 |
7824 measured reflections | l = −12→12 |
Refinement top
Refinement on F2 | Primary atom site location: structure-invariant direct methods |
Least-squares matrix: full | Secondary atom site location: difference Fourier map |
R[F2 > 2σ(F2)] = 0.060 | Hydrogen site location: inferred from neighbouring sites |
wR(F2) = 0.139 | H-atom parameters constrained |
S = 1.15 | w = 1/[σ2(Fo2) + (0.049P)2 + 0.963P] where P = (Fo2 + 2Fc2)/3 |
2753 reflections | (Δ/σ)max < 0.001 |
201 parameters | Δρmax = 0.31 e Å−3 |
0 restraints | Δρmin = −0.23 e Å−3 |
Special details top
Geometry. All e.s.d.'s (except the e.s.d. in the dihedral angle between two l.s. planes)
are estimated using the full covariance matrix. The cell e.s.d.'s are taken
into account individually in the estimation of e.s.d.'s in distances, angles
and torsion angles; correlations between e.s.d.'s in cell parameters are only
used when they are defined by crystal symmetry. An approximate (isotropic)
treatment of cell e.s.d.'s is used for estimating e.s.d.'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 >
σ(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. |
Fractional atomic coordinates and isotropic or equivalent isotropic displacement parameters (Å2) top | x | y | z | Uiso*/Ueq | |
P1 | 0.26041 (7) | 0.07786 (5) | 0.41013 (7) | 0.0456 (2) | |
O2 | 0.3301 (2) | −0.00448 (14) | 0.39089 (19) | 0.0544 (5) | |
O3 | 0.1654 (2) | 0.05898 (15) | 0.4875 (2) | 0.0644 (6) | |
O4 | 0.1678 (2) | 0.12858 (15) | 0.2848 (2) | 0.0651 (6) | |
N2 | 0.4580 (2) | 0.12942 (16) | 0.6226 (2) | 0.0478 (6) | |
H2 | 0.5123 | 0.0859 | 0.6214 | 0.057* | |
O1 | 0.3828 (2) | 0.22032 (17) | 0.7487 (2) | 0.0718 (7) | |
C6 | 0.4442 (3) | 0.21865 (18) | 0.4211 (3) | 0.0453 (6) | |
C13 | 0.3713 (3) | 0.17017 (19) | 0.4990 (3) | 0.0465 (7) | |
H13 | 0.3162 | 0.2170 | 0.5204 | 0.056* | |
N1 | 0.7203 (3) | 0.0251 (3) | 1.0868 (3) | 0.0760 (9) | |
C10 | 0.5959 (3) | 0.1567 (2) | 0.9748 (3) | 0.0596 (8) | |
H10 | 0.5710 | 0.2179 | 0.9798 | 0.072* | |
C11 | 0.5476 (3) | 0.1090 (2) | 0.8578 (3) | 0.0459 (7) | |
C12 | 0.4551 (3) | 0.1584 (2) | 0.7384 (3) | 0.0478 (7) | |
C1 | 0.5785 (3) | 0.2060 (2) | 0.4484 (3) | 0.0557 (8) | |
H1 | 0.6272 | 0.1665 | 0.5162 | 0.067* | |
C7 | 0.5851 (3) | 0.0175 (2) | 0.8585 (3) | 0.0580 (8) | |
H7 | 0.5540 | −0.0178 | 0.7820 | 0.070* | |
C14 | 0.1879 (4) | −0.0138 (2) | 0.5824 (3) | 0.0712 (10) | |
H14A | 0.2578 | −0.0536 | 0.5781 | 0.107* | |
H14B | 0.1074 | −0.0491 | 0.5639 | 0.107* | |
H14C | 0.2136 | 0.0126 | 0.6688 | 0.107* | |
C5 | 0.3749 (3) | 0.2796 (2) | 0.3216 (3) | 0.0669 (9) | |
H5 | 0.2846 | 0.2905 | 0.3033 | 0.080* | |
C2 | 0.6412 (4) | 0.2515 (2) | 0.3758 (4) | 0.0714 (10) | |
H2A | 0.7320 | 0.2422 | 0.3952 | 0.086* | |
C8 | 0.6696 (4) | −0.0206 (3) | 0.9744 (3) | 0.0693 (9) | |
H8 | 0.6925 | −0.0827 | 0.9738 | 0.083* | |
C4 | 0.4391 (4) | 0.3242 (3) | 0.2498 (4) | 0.0815 (11) | |
H4 | 0.3916 | 0.3645 | 0.1826 | 0.098* | |
C9 | 0.6818 (4) | 0.1119 (3) | 1.0845 (3) | 0.0742 (11) | |
H9 | 0.7149 | 0.1455 | 1.1624 | 0.089* | |
C15 | 0.0632 (4) | 0.0833 (3) | 0.1812 (4) | 0.0900 (13) | |
H15A | 0.0972 | 0.0276 | 0.1567 | 0.135* | |
H15B | 0.0306 | 0.1239 | 0.1066 | 0.135* | |
H15C | −0.0082 | 0.0681 | 0.2107 | 0.135* | |
C3 | 0.5726 (4) | 0.3097 (2) | 0.2764 (4) | 0.0760 (10) | |
H3 | 0.6154 | 0.3393 | 0.2270 | 0.091* | |
Atomic displacement parameters (Å2) top | U11 | U22 | U33 | U12 | U13 | U23 |
P1 | 0.0372 (4) | 0.0527 (4) | 0.0457 (4) | 0.0059 (3) | 0.0135 (3) | 0.0076 (3) |
O2 | 0.0526 (12) | 0.0580 (12) | 0.0544 (12) | 0.0043 (10) | 0.0214 (10) | −0.0009 (9) |
O3 | 0.0536 (13) | 0.0685 (14) | 0.0806 (15) | 0.0127 (11) | 0.0359 (12) | 0.0206 (12) |
O4 | 0.0509 (13) | 0.0664 (14) | 0.0618 (13) | −0.0044 (10) | 0.0012 (11) | 0.0154 (11) |
N2 | 0.0447 (13) | 0.0561 (14) | 0.0409 (12) | 0.0145 (11) | 0.0136 (10) | 0.0017 (11) |
O1 | 0.0762 (16) | 0.0830 (16) | 0.0626 (14) | 0.0308 (13) | 0.0329 (13) | −0.0018 (12) |
C6 | 0.0479 (16) | 0.0380 (14) | 0.0485 (15) | 0.0021 (12) | 0.0158 (13) | −0.0025 (12) |
C13 | 0.0400 (15) | 0.0506 (16) | 0.0490 (16) | 0.0129 (12) | 0.0160 (13) | 0.0025 (13) |
N1 | 0.0655 (19) | 0.096 (2) | 0.0569 (18) | −0.0077 (17) | 0.0104 (15) | 0.0161 (17) |
C10 | 0.065 (2) | 0.0617 (19) | 0.0526 (18) | −0.0176 (16) | 0.0220 (16) | −0.0017 (15) |
C11 | 0.0391 (14) | 0.0593 (17) | 0.0432 (15) | −0.0065 (13) | 0.0196 (12) | 0.0020 (13) |
C12 | 0.0416 (15) | 0.0563 (17) | 0.0506 (16) | 0.0000 (13) | 0.0229 (13) | −0.0041 (13) |
C1 | 0.0502 (18) | 0.0527 (17) | 0.0659 (19) | 0.0069 (14) | 0.0230 (16) | 0.0082 (15) |
C7 | 0.0563 (19) | 0.069 (2) | 0.0487 (17) | 0.0061 (16) | 0.0195 (15) | 0.0029 (15) |
C14 | 0.081 (2) | 0.077 (2) | 0.067 (2) | 0.0023 (19) | 0.041 (2) | 0.0112 (18) |
C5 | 0.0530 (19) | 0.062 (2) | 0.079 (2) | 0.0072 (16) | 0.0160 (17) | 0.0187 (18) |
C2 | 0.061 (2) | 0.062 (2) | 0.098 (3) | −0.0002 (17) | 0.037 (2) | 0.011 (2) |
C8 | 0.070 (2) | 0.076 (2) | 0.061 (2) | 0.0092 (18) | 0.0228 (19) | 0.0159 (18) |
C4 | 0.081 (3) | 0.070 (2) | 0.088 (3) | −0.002 (2) | 0.024 (2) | 0.034 (2) |
C9 | 0.079 (3) | 0.091 (3) | 0.0422 (18) | −0.032 (2) | 0.0108 (17) | −0.0027 (18) |
C15 | 0.068 (2) | 0.091 (3) | 0.078 (3) | −0.010 (2) | −0.013 (2) | 0.015 (2) |
C3 | 0.079 (3) | 0.062 (2) | 0.096 (3) | −0.0113 (19) | 0.043 (2) | 0.016 (2) |
Geometric parameters (Å, º) top
P1—O2 | 1.459 (2) | C11—C12 | 1.502 (4) |
P1—O4 | 1.552 (2) | C1—C2 | 1.379 (4) |
P1—O3 | 1.568 (2) | C1—H1 | 0.9300 |
P1—C13 | 1.815 (3) | C7—C8 | 1.377 (4) |
O3—C14 | 1.432 (4) | C7—H7 | 0.9300 |
O4—C15 | 1.431 (4) | C14—H14A | 0.9600 |
N2—C12 | 1.343 (3) | C14—H14B | 0.9600 |
N2—C13 | 1.457 (3) | C14—H14C | 0.9600 |
N2—H2 | 0.8600 | C5—C4 | 1.379 (5) |
O1—C12 | 1.215 (3) | C5—H5 | 0.9300 |
C6—C1 | 1.376 (4) | C2—C3 | 1.359 (5) |
C6—C5 | 1.386 (4) | C2—H2A | 0.9300 |
C6—C13 | 1.520 (4) | C8—H8 | 0.9300 |
C13—H13 | 0.9800 | C4—C3 | 1.372 (5) |
N1—C9 | 1.316 (5) | C4—H4 | 0.9300 |
N1—C8 | 1.323 (4) | C9—H9 | 0.9300 |
C10—C11 | 1.376 (4) | C15—H15A | 0.9600 |
C10—C9 | 1.379 (5) | C15—H15B | 0.9600 |
C10—H10 | 0.9300 | C15—H15C | 0.9600 |
C11—C7 | 1.379 (4) | C3—H3 | 0.9300 |
| | | |
O2—P1—O4 | 117.05 (13) | C8—C7—C11 | 118.7 (3) |
O2—P1—O3 | 113.91 (12) | C8—C7—H7 | 120.6 |
O4—P1—O3 | 102.83 (12) | C11—C7—H7 | 120.6 |
O2—P1—C13 | 113.69 (12) | O3—C14—H14A | 109.5 |
O4—P1—C13 | 102.27 (12) | O3—C14—H14B | 109.5 |
O3—P1—C13 | 105.60 (13) | H14A—C14—H14B | 109.5 |
C14—O3—P1 | 123.0 (2) | O3—C14—H14C | 109.5 |
C15—O4—P1 | 123.4 (2) | H14A—C14—H14C | 109.5 |
C12—N2—C13 | 121.4 (2) | H14B—C14—H14C | 109.5 |
C12—N2—H2 | 119.3 | C4—C5—C6 | 120.3 (3) |
C13—N2—H2 | 119.3 | C4—C5—H5 | 119.9 |
C1—C6—C5 | 118.5 (3) | C6—C5—H5 | 119.9 |
C1—C6—C13 | 122.1 (3) | C3—C2—C1 | 121.1 (3) |
C5—C6—C13 | 119.4 (3) | C3—C2—H2A | 119.5 |
N2—C13—C6 | 114.7 (2) | C1—C2—H2A | 119.5 |
N2—C13—P1 | 105.96 (19) | N1—C8—C7 | 124.5 (4) |
C6—C13—P1 | 114.19 (19) | N1—C8—H8 | 117.7 |
N2—C13—H13 | 107.2 | C7—C8—H8 | 117.7 |
C6—C13—H13 | 107.2 | C3—C4—C5 | 120.6 (3) |
P1—C13—H13 | 107.2 | C3—C4—H4 | 119.7 |
C9—N1—C8 | 115.8 (3) | C5—C4—H4 | 119.7 |
C11—C10—C9 | 118.8 (3) | N1—C9—C10 | 124.6 (3) |
C11—C10—H10 | 120.6 | N1—C9—H9 | 117.7 |
C9—C10—H10 | 120.6 | C10—C9—H9 | 117.7 |
C10—C11—C7 | 117.5 (3) | O4—C15—H15A | 109.5 |
C10—C11—C12 | 118.5 (3) | O4—C15—H15B | 109.5 |
C7—C11—C12 | 124.0 (3) | H15A—C15—H15B | 109.5 |
O1—C12—N2 | 123.4 (3) | O4—C15—H15C | 109.5 |
O1—C12—C11 | 120.8 (3) | H15A—C15—H15C | 109.5 |
N2—C12—C11 | 115.8 (2) | H15B—C15—H15C | 109.5 |
C6—C1—C2 | 120.4 (3) | C2—C3—C4 | 119.1 (3) |
C6—C1—H1 | 119.8 | C2—C3—H3 | 120.5 |
C2—C1—H1 | 119.8 | C4—C3—H3 | 120.5 |
Hydrogen-bond geometry (Å, º) top
D—H···A | D—H | H···A | D···A | D—H···A |
N2—H2···O2i | 0.86 | 2.10 | 2.949 (3) | 167 |
Symmetry code: (i) −x+1, −y, −z+1. |