organic compounds
(E)-1-(3-Methoxyphenyl)ethanone 4-nitrophenylhydrazone
aCollege of Biological and Environmental Engineering, Zhejiang University of Technology, People's Republic of China, and bCollege of Chemical Engineering and Materials Science, Zhejiang University of Technology, People's Republic of China
*Correspondence e-mail: shanshang@mail.hz.zj.cn
Crystals of the title compound, C15H15N3O3, were obtained from a condensation reaction of 4-nitrophenylhydrazine and 3-methoxyacetophenone. In the the methoxyphenyl ring is twisted slightly with respect to the nitrophenylhydrazine plane, making a dihedral angle of 14.81 (8)°. The nitro and methoxy groups are each coplanar with the attached benzene rings. The nitrophenyl and methoxyphenyl groups are located on opposite sides of the C=N double bond, indicating an E configuration of the molecule. Adjacent molecules are linked together via N—H⋯O hydrogen bonding, forming chains along the [101] direction.
Related literature
For general background, see: Okabe et al. (1993); Shan et al. (2003a). For related structures, see: Shan et al. (2003b, 2004, 2008).
Experimental
Crystal data
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Data collection
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Refinement
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Data collection: PROCESS-AUTO (Rigaku, 1998); cell PROCESS-AUTO; data reduction: CrystalStructure (Rigaku/MSC, 2002); program(s) used to solve structure: SIR92 (Altomare et al., 1993); program(s) used to refine structure: SHELXL97 (Sheldrick, 2008); molecular graphics: ORTEP-3 for Windows (Farrugia, 1997); software used to prepare material for publication: WinGX (Farrugia, 1999).
Supporting information
10.1107/S1600536808018618/om2241sup1.cif
contains datablocks I, global. DOI:Structure factors: contains datablock I. DOI: 10.1107/S1600536808018618/om2241Isup2.hkl
4-Nitrophenylhydrazine (0.31 g, 2 mmol) was dissolved in ethanol (10 ml), then H2SO4 solution (98%, 0.5 ml) was added slowly to the ethanol solution with stirring. The solution was heated at about 333 K for several minutes until the solution cleared. An ethanol solution (5 ml) of 3-methoxyacetophenone (0.30 g, 2 mmol) was dropped slowly into the above solution with continuous stirring, and the mixture solution was kept at about 333 K for 0.5 h. When the solution had cooled to room temperature, red microcrystals appeared. They were separated and washed with cold water three times to get the product 0.45 g. Single crystals of the title compound were obtained by recrystallization from an absolute ethanol solution.
Methyl H atoms were placed in calculated positions with C—H = 0.96 Å and the torsion angle was refined to fit the electron density, Uiso(H) = 1.5Ueq(C). Other H atoms were placed in calculated positions with C—H = 0.93 and N—H = 0.86 Å, and refined in riding mode with Uiso(H) = 1.2Ueq(C,N).
Data collection: PROCESS-AUTO (Rigaku, 1998); cell
PROCESS-AUTO (Rigaku, 1998); data reduction: CrystalStructure (Rigaku/MSC, 2002); program(s) used to solve structure: SIR92 (Altomare et al., 1993); program(s) used to refine structure: SHELXL97 (Sheldrick, 2008); molecular graphics: ORTEP-3 for Windows (Farrugia, 1997); software used to prepare material for publication: WinGX (Farrugia, 1999).C15H15N3O3 | F(000) = 600 |
Mr = 285.30 | Dx = 1.367 Mg m−3 |
Monoclinic, P21/c | Mo Kα radiation, λ = 0.71073 Å |
Hall symbol: -P 2ybc | Cell parameters from 4665 reflections |
a = 4.2977 (17) Å | θ = 2.0–25.0° |
b = 24.709 (9) Å | µ = 0.10 mm−1 |
c = 13.132 (5) Å | T = 295 K |
β = 96.332 (11)° | Prism, red |
V = 1386.0 (9) Å3 | 0.32 × 0.26 × 0.22 mm |
Z = 4 |
Rigaku R-AXIS RAPID IP diffractometer | 1643 reflections with I > 2σ(I) |
Radiation source: fine-focus sealed tube | Rint = 0.045 |
Graphite monochromator | θmax = 27.0°, θmin = 1.7° |
Detector resolution: 10.00 pixels mm-1 | h = −5→5 |
ω scans | k = −30→31 |
16470 measured reflections | l = −16→15 |
3014 independent reflections |
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)] = 0.049 | Hydrogen site location: inferred from neighbouring sites |
wR(F2) = 0.141 | H-atom parameters constrained |
S = 1.03 | w = 1/[σ2(Fo2) + (0.0685P)2 + 0.02P] where P = (Fo2 + 2Fc2)/3 |
3014 reflections | (Δ/σ)max < 0.001 |
192 parameters | Δρmax = 0.15 e Å−3 |
0 restraints | Δρmin = −0.17 e Å−3 |
C15H15N3O3 | V = 1386.0 (9) Å3 |
Mr = 285.30 | Z = 4 |
Monoclinic, P21/c | Mo Kα radiation |
a = 4.2977 (17) Å | µ = 0.10 mm−1 |
b = 24.709 (9) Å | T = 295 K |
c = 13.132 (5) Å | 0.32 × 0.26 × 0.22 mm |
β = 96.332 (11)° |
Rigaku R-AXIS RAPID IP diffractometer | 1643 reflections with I > 2σ(I) |
16470 measured reflections | Rint = 0.045 |
3014 independent reflections |
R[F2 > 2σ(F2)] = 0.049 | 0 restraints |
wR(F2) = 0.141 | H-atom parameters constrained |
S = 1.03 | Δρmax = 0.15 e Å−3 |
3014 reflections | Δρmin = −0.17 e Å−3 |
192 parameters |
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. |
x | y | z | Uiso*/Ueq | ||
N1 | 0.2858 (3) | 0.59466 (6) | 0.29114 (11) | 0.0540 (4) | |
N2 | 0.4535 (3) | 0.63991 (6) | 0.27160 (11) | 0.0573 (4) | |
H2 | 0.4405 | 0.6533 | 0.2109 | 0.069* | |
N3 | 1.2264 (4) | 0.73954 (7) | 0.58666 (13) | 0.0656 (5) | |
O1 | −0.4958 (3) | 0.41329 (6) | 0.10899 (10) | 0.0775 (5) | |
O2 | 1.2533 (4) | 0.71902 (6) | 0.67268 (11) | 0.0944 (6) | |
O3 | 1.3617 (4) | 0.78225 (6) | 0.56823 (11) | 0.0865 (5) | |
C1 | −0.0634 (4) | 0.52365 (7) | 0.24122 (12) | 0.0507 (5) | |
C2 | −0.2090 (4) | 0.48991 (7) | 0.16601 (13) | 0.0563 (5) | |
H2A | −0.2011 | 0.4985 | 0.0974 | 0.068* | |
C3 | −0.3663 (4) | 0.44357 (8) | 0.19125 (13) | 0.0574 (5) | |
C4 | −0.3852 (5) | 0.43034 (8) | 0.29148 (15) | 0.0680 (6) | |
H4 | −0.4900 | 0.3993 | 0.3087 | 0.082* | |
C5 | −0.2442 (5) | 0.46436 (9) | 0.36672 (14) | 0.0775 (7) | |
H5 | −0.2576 | 0.4560 | 0.4351 | 0.093* | |
C6 | −0.0856 (5) | 0.51000 (8) | 0.34328 (14) | 0.0669 (6) | |
H6 | 0.0075 | 0.5319 | 0.3955 | 0.080* | |
C7 | 0.1106 (4) | 0.57271 (7) | 0.21575 (13) | 0.0528 (5) | |
C8 | 0.0787 (5) | 0.59459 (9) | 0.10844 (15) | 0.0818 (7) | |
H8A | 0.0396 | 0.6328 | 0.1099 | 0.123* | |
H8B | −0.0926 | 0.5769 | 0.0686 | 0.123* | |
H8C | 0.2686 | 0.5880 | 0.0782 | 0.123* | |
C9 | −0.6460 (5) | 0.36382 (8) | 0.13053 (16) | 0.0790 (7) | |
H9A | −0.5045 | 0.3419 | 0.1746 | 0.119* | |
H9B | −0.7058 | 0.3448 | 0.0677 | 0.119* | |
H9C | −0.8290 | 0.3715 | 0.1638 | 0.119* | |
C10 | 0.6430 (4) | 0.66358 (7) | 0.35048 (13) | 0.0488 (4) | |
C11 | 0.6824 (4) | 0.64122 (7) | 0.44883 (14) | 0.0574 (5) | |
H11 | 0.5794 | 0.6094 | 0.4625 | 0.069* | |
C12 | 0.8742 (4) | 0.66645 (8) | 0.52547 (14) | 0.0582 (5) | |
H12 | 0.8993 | 0.6518 | 0.5911 | 0.070* | |
C13 | 1.0288 (4) | 0.71338 (7) | 0.50517 (13) | 0.0520 (5) | |
C14 | 0.9974 (4) | 0.73569 (7) | 0.40765 (14) | 0.0566 (5) | |
H14 | 1.1054 | 0.7670 | 0.3942 | 0.068* | |
C15 | 0.8043 (4) | 0.71083 (7) | 0.33116 (14) | 0.0564 (5) | |
H15 | 0.7809 | 0.7257 | 0.2657 | 0.068* |
U11 | U22 | U33 | U12 | U13 | U23 | |
N1 | 0.0518 (9) | 0.0552 (9) | 0.0533 (9) | 0.0029 (7) | −0.0015 (7) | −0.0024 (7) |
N2 | 0.0604 (10) | 0.0626 (10) | 0.0466 (9) | −0.0004 (8) | −0.0039 (7) | 0.0005 (7) |
N3 | 0.0698 (11) | 0.0610 (11) | 0.0636 (11) | 0.0079 (9) | −0.0042 (8) | −0.0123 (9) |
O1 | 0.1001 (11) | 0.0751 (9) | 0.0548 (8) | −0.0272 (8) | −0.0025 (7) | −0.0045 (7) |
O2 | 0.1219 (14) | 0.1013 (12) | 0.0540 (9) | −0.0124 (10) | −0.0175 (9) | −0.0037 (8) |
O3 | 0.1030 (12) | 0.0664 (10) | 0.0860 (11) | −0.0165 (9) | −0.0083 (9) | −0.0133 (8) |
C1 | 0.0511 (11) | 0.0553 (11) | 0.0446 (10) | 0.0082 (9) | 0.0000 (8) | −0.0006 (8) |
C2 | 0.0628 (12) | 0.0616 (12) | 0.0435 (10) | 0.0016 (9) | 0.0011 (9) | −0.0009 (8) |
C3 | 0.0604 (12) | 0.0628 (12) | 0.0472 (11) | 0.0002 (10) | −0.0021 (9) | −0.0039 (9) |
C4 | 0.0795 (15) | 0.0695 (13) | 0.0539 (12) | −0.0123 (11) | 0.0031 (10) | 0.0044 (10) |
C5 | 0.1069 (18) | 0.0822 (16) | 0.0425 (11) | −0.0145 (13) | 0.0039 (11) | 0.0070 (10) |
C6 | 0.0812 (15) | 0.0711 (13) | 0.0454 (11) | −0.0056 (11) | −0.0058 (10) | −0.0020 (9) |
C7 | 0.0540 (11) | 0.0578 (11) | 0.0456 (11) | 0.0077 (9) | 0.0014 (9) | −0.0020 (8) |
C8 | 0.0992 (17) | 0.0880 (16) | 0.0542 (12) | −0.0295 (13) | −0.0098 (11) | 0.0072 (10) |
C9 | 0.0948 (16) | 0.0627 (13) | 0.0760 (15) | −0.0158 (12) | −0.0063 (12) | −0.0003 (11) |
C10 | 0.0459 (10) | 0.0516 (11) | 0.0481 (10) | 0.0075 (8) | 0.0014 (8) | −0.0032 (8) |
C11 | 0.0610 (12) | 0.0545 (11) | 0.0557 (12) | −0.0037 (9) | 0.0027 (9) | 0.0008 (9) |
C12 | 0.0644 (12) | 0.0630 (12) | 0.0465 (11) | 0.0042 (10) | 0.0019 (9) | 0.0022 (9) |
C13 | 0.0518 (11) | 0.0514 (11) | 0.0511 (11) | 0.0084 (9) | −0.0020 (8) | −0.0077 (8) |
C14 | 0.0564 (12) | 0.0496 (11) | 0.0625 (12) | 0.0029 (9) | 0.0001 (9) | −0.0003 (9) |
C15 | 0.0601 (12) | 0.0566 (11) | 0.0509 (11) | 0.0044 (9) | −0.0013 (9) | 0.0055 (9) |
N1—C7 | 1.295 (2) | C6—H6 | 0.9300 |
N1—N2 | 1.3699 (19) | C7—C8 | 1.501 (3) |
N2—C10 | 1.376 (2) | C8—H8A | 0.9600 |
N2—H2 | 0.8600 | C8—H8B | 0.9600 |
N3—O2 | 1.232 (2) | C8—H8C | 0.9600 |
N3—O3 | 1.242 (2) | C9—H9A | 0.9600 |
N3—C13 | 1.443 (2) | C9—H9B | 0.9600 |
O1—C3 | 1.380 (2) | C9—H9C | 0.9600 |
O1—C9 | 1.425 (2) | C10—C15 | 1.395 (2) |
C1—C2 | 1.388 (2) | C10—C11 | 1.398 (3) |
C1—C6 | 1.395 (2) | C11—C12 | 1.378 (2) |
C1—C7 | 1.482 (2) | C11—H11 | 0.9300 |
C2—C3 | 1.388 (2) | C12—C13 | 1.377 (3) |
C2—H2A | 0.9300 | C12—H12 | 0.9300 |
C3—C4 | 1.367 (3) | C13—C14 | 1.387 (2) |
C4—C5 | 1.385 (3) | C14—C15 | 1.375 (2) |
C4—H4 | 0.9300 | C14—H14 | 0.9300 |
C5—C6 | 1.370 (3) | C15—H15 | 0.9300 |
C5—H5 | 0.9300 | ||
C7—N1—N2 | 118.18 (15) | C7—C8—H8B | 109.5 |
N1—N2—C10 | 119.09 (14) | H8A—C8—H8B | 109.5 |
N1—N2—H2 | 120.5 | C7—C8—H8C | 109.5 |
C10—N2—H2 | 120.5 | H8A—C8—H8C | 109.5 |
O2—N3—O3 | 121.99 (17) | H8B—C8—H8C | 109.5 |
O2—N3—C13 | 118.92 (18) | O1—C9—H9A | 109.5 |
O3—N3—C13 | 119.08 (17) | O1—C9—H9B | 109.5 |
C3—O1—C9 | 117.53 (15) | H9A—C9—H9B | 109.5 |
C2—C1—C6 | 117.71 (18) | O1—C9—H9C | 109.5 |
C2—C1—C7 | 122.00 (16) | H9A—C9—H9C | 109.5 |
C6—C1—C7 | 120.29 (16) | H9B—C9—H9C | 109.5 |
C1—C2—C3 | 121.26 (17) | N2—C10—C15 | 118.92 (16) |
C1—C2—H2A | 119.4 | N2—C10—C11 | 121.93 (16) |
C3—C2—H2A | 119.4 | C15—C10—C11 | 119.14 (16) |
C4—C3—O1 | 124.23 (18) | C12—C11—C10 | 119.85 (17) |
C4—C3—C2 | 120.60 (17) | C12—C11—H11 | 120.1 |
O1—C3—C2 | 115.17 (16) | C10—C11—H11 | 120.1 |
C3—C4—C5 | 118.30 (19) | C13—C12—C11 | 120.15 (17) |
C3—C4—H4 | 120.8 | C13—C12—H12 | 119.9 |
C5—C4—H4 | 120.8 | C11—C12—H12 | 119.9 |
C6—C5—C4 | 121.90 (18) | C12—C13—C14 | 120.89 (16) |
C6—C5—H5 | 119.0 | C12—C13—N3 | 119.38 (17) |
C4—C5—H5 | 119.0 | C14—C13—N3 | 119.73 (18) |
C5—C6—C1 | 120.22 (18) | C15—C14—C13 | 119.09 (18) |
C5—C6—H6 | 119.9 | C15—C14—H14 | 120.5 |
C1—C6—H6 | 119.9 | C13—C14—H14 | 120.5 |
N1—C7—C1 | 115.80 (16) | C14—C15—C10 | 120.86 (17) |
N1—C7—C8 | 123.50 (18) | C14—C15—H15 | 119.6 |
C1—C7—C8 | 120.69 (16) | C10—C15—H15 | 119.6 |
C7—C8—H8A | 109.5 | ||
C7—N1—N2—C10 | −179.48 (14) | C6—C1—C7—C8 | −166.53 (19) |
C6—C1—C2—C3 | −1.2 (3) | N1—N2—C10—C15 | −177.60 (15) |
C7—C1—C2—C3 | 178.84 (16) | N1—N2—C10—C11 | 3.4 (2) |
C9—O1—C3—C4 | −3.0 (3) | N2—C10—C11—C12 | −179.86 (15) |
C9—O1—C3—C2 | 176.82 (17) | C15—C10—C11—C12 | 1.2 (3) |
C1—C2—C3—C4 | 0.9 (3) | C10—C11—C12—C13 | −0.5 (3) |
C1—C2—C3—O1 | −178.98 (16) | C11—C12—C13—C14 | −0.7 (3) |
O1—C3—C4—C5 | 179.96 (18) | C11—C12—C13—N3 | 179.40 (16) |
C2—C3—C4—C5 | 0.1 (3) | O2—N3—C13—C12 | 0.4 (3) |
C3—C4—C5—C6 | −0.7 (3) | O3—N3—C13—C12 | −179.01 (17) |
C4—C5—C6—C1 | 0.3 (3) | O2—N3—C13—C14 | −179.54 (17) |
C2—C1—C6—C5 | 0.7 (3) | O3—N3—C13—C14 | 1.1 (3) |
C7—C1—C6—C5 | −179.42 (18) | C12—C13—C14—C15 | 1.2 (3) |
N2—N1—C7—C1 | 179.54 (13) | N3—C13—C14—C15 | −178.92 (16) |
N2—N1—C7—C8 | −0.8 (3) | C13—C14—C15—C10 | −0.5 (3) |
C2—C1—C7—N1 | −166.90 (16) | N2—C10—C15—C14 | −179.69 (15) |
C6—C1—C7—N1 | 13.2 (2) | C11—C10—C15—C14 | −0.7 (3) |
C2—C1—C7—C8 | 13.4 (3) |
D—H···A | D—H | H···A | D···A | D—H···A |
N2—H2···O3i | 0.86 | 2.45 | 3.279 (2) | 161 |
Symmetry code: (i) x−1, −y+3/2, z−1/2. |
Experimental details
Crystal data | |
Chemical formula | C15H15N3O3 |
Mr | 285.30 |
Crystal system, space group | Monoclinic, P21/c |
Temperature (K) | 295 |
a, b, c (Å) | 4.2977 (17), 24.709 (9), 13.132 (5) |
β (°) | 96.332 (11) |
V (Å3) | 1386.0 (9) |
Z | 4 |
Radiation type | Mo Kα |
µ (mm−1) | 0.10 |
Crystal size (mm) | 0.32 × 0.26 × 0.22 |
Data collection | |
Diffractometer | Rigaku R-AXIS RAPID IP diffractometer |
Absorption correction | – |
No. of measured, independent and observed [I > 2σ(I)] reflections | 16470, 3014, 1643 |
Rint | 0.045 |
(sin θ/λ)max (Å−1) | 0.639 |
Refinement | |
R[F2 > 2σ(F2)], wR(F2), S | 0.049, 0.141, 1.03 |
No. of reflections | 3014 |
No. of parameters | 192 |
H-atom treatment | H-atom parameters constrained |
Δρmax, Δρmin (e Å−3) | 0.15, −0.17 |
Computer programs: PROCESS-AUTO (Rigaku, 1998), CrystalStructure (Rigaku/MSC, 2002), SIR92 (Altomare et al., 1993), SHELXL97 (Sheldrick, 2008), ORTEP-3 for Windows (Farrugia, 1997), WinGX (Farrugia, 1999).
D—H···A | D—H | H···A | D···A | D—H···A |
N2—H2···O3i | 0.86 | 2.45 | 3.279 (2) | 161 |
Symmetry code: (i) x−1, −y+3/2, z−1/2. |
Acknowledgements
The work was supported by the Natural Science Foundation of Zhejiang Province, China (No. M203027).
References
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This is an open-access article distributed under the terms of the Creative Commons Attribution (CC-BY) Licence, which permits unrestricted use, distribution, and reproduction in any medium, provided the original authors and source are cited.
Since some phenylhydrazone derivatives have shown to be potential DNA damaging and mutagenic agents (Okabe et al., 1993), a series of new phenylhydrazone derivatives have been prepared in our laboratory (Shan et al., 2003a). As part of the ongoing investigation, the title compound has recently been prepared and its crystal structure is reported here.
The molecular structure of the title compound is shown in Fig. 1. The N1—C7 bond distance of 1.295 (2) Å indicates a typical C=N double bond. The molecule assumes an E configuration, with the nitrophenyl ring and methoxyphenyl rings located on the opposite sites of the C=N bond. The dihedral angle of 1.4 (3)° between nitro group and C10-benzene ring and the C1—C2—C3—C4 torsion angle of 0.9 (3)° suggest that nitro and methoxyl groups are co-planar with the individual benzene rings. The methoxyphenyl ring is slightly twisted with respect to the nitrophenylhydrazine mean plane by a small dihedral angle of 14.81 (8)°, indicating the molecule is approximately co-planar except for methyl H atoms.
In the crystal structure adjacent molecules are linked via N—H···O hydrogen bonding to form chains along the [1 0 1] direction (Table 1 and Fig. 2). Although π-π stacking was found between 4-nitrophenyl rings in several related structures previously reported, benzil 4-nitrophenylhydrazone (Shan et al., 2003b), 2-chloro-3,4-dimethoxybenzaldehyde 4-nitrophenylhydrazone (Shan et al., 2004) and acetylpyrazine 4-nitrophenylhydrazone (Shan et al., 2008), no π-π stacking is observed in the crystal structure.