organic compounds
N′-[(E)-1-(5-Bromo-2-hydroxyphenyl)ethylidene]-4-nitrobenzohydrazide
aCollege of Environment and Chemical Engineering, Xi'an Polytechnic University, 710048 Xi'an,Shaanxi, People's Republic of China
*Correspondence e-mail: wllily315668256@yahoo.com.cn
The title compound, C15H12BrN3O4, displays a trans conformation with respect to the C=N double bond. The central atoms around the C=N double bond are not coplanar, in contrast to the aromatic rings, which exhibit a dihedral angle of 1.80 (4)° between their mean planes. An intramolecular O—H⋯N hydrogen bond occurs. In the crystal, molecules are connected via intermolecular N—H⋯O hydrogen bonding into chains along the a axis.
Related literature
For the coordination properties of aroylhydrazones, see: Ali et al. (2004); Carcelli et al. (1995); Zhang et al. (2011); Zheng et al. (2008).
Experimental
Crystal data
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Refinement
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Data collection: SMART (Bruker, 1996); cell SAINT (Bruker, 1996); data reduction: SAINT; program(s) used to solve structure: SHELXS97 (Sheldrick, 2008); program(s) used to refine structure: SHELXL97 (Sheldrick, 2008); molecular graphics: SHELXTL (Sheldrick, 2008); software used to prepare material for publication: SHELXTL.
Supporting information
10.1107/S1600536811023609/zq2106sup1.cif
contains datablocks I, global. DOI:Structure factors: contains datablock I. DOI: 10.1107/S1600536811023609/zq2106Isup2.hkl
Supporting information file. DOI: 10.1107/S1600536811023609/zq2106Isup3.cml
Ethyl 4-nitrobenzoate (9.76 g, 0.05 mol) was dissolved in ethanol (40 ml) at room temperature and heated at 363 K, followed by the addition of hydrazine hydrate (2.50 g, 0.05 mol). Subsequently, the mixture was refluxed for 10 h, and then cooled to room temperature. The crystals were precipitated and collected by filtration. The product was recrystallized from ethanol and dried under reduced pressure to give compound of 4-nitrobenzhydrazide. 4-Nitrobenzhydrazide (4.53 g, 0.025 mol) was dissolved in ethanol (20 ml) at room temperature and heated at 363 K, followed by the addition of 5-bromo-2-hydroxyphenyl ethyl ketone (5.38 g, 0.025 mol). Subsequently, the mixture was refluxed for 9 h, and then cooled to room temperature. The crystals were precipitated and collected by filtration. The product was recrystallized from ethanol and dried under reduced pressure to the title compound.
All H atoms were positioned geometrically and treated as riding on their parent atoms, with C—H (methyl) = 0.96 Å, C—H (aromatic) = 0.93 Å, O—H = 0.82 Å, N—H = 0.86 Å and with Uiso(H) = 1.5Ueq(Cmethyl, O) and 1.2Ueq(Caromatic, N).
Data collection: SMART (Bruker, 1996); cell
SAINT (Bruker, 1996); data reduction: SAINT (Bruker, 1996); program(s) used to solve structure: SHELXS97 (Sheldrick, 2008); program(s) used to refine structure: SHELXL97 (Sheldrick, 2008); molecular graphics: SHELXTL (Sheldrick, 2008); software used to prepare material for publication: SHELXTL (Sheldrick, 2008).C15H12BrN3O4 | F(000) = 760 |
Mr = 378.19 | Dx = 1.715 Mg m−3 |
Orthorhombic, Pna21 | Mo Kα radiation, λ = 0.71073 Å |
Hall symbol: P 2c -2n | Cell parameters from 2077 reflections |
a = 40.381 (13) Å | θ = 3.0–23.4° |
b = 5.0598 (16) Å | µ = 2.83 mm−1 |
c = 7.168 (2) Å | T = 298 K |
V = 1464.5 (8) Å3 | Block, red |
Z = 4 | 0.35 × 0.23 × 0.14 mm |
Bruker SMART CCD area-detector diffractometer | 2520 independent reflections |
Radiation source: fine-focus sealed tube | 2074 reflections with I > 2σ(I) |
Graphite monochromator | Rint = 0.040 |
ϕ and ω scans | θmax = 25.2°, θmin = 2.0° |
Absorption correction: multi-scan (SADABS; Sheldrick, 1996) | h = −39→48 |
Tmin = 0.441, Tmax = 0.689 | k = −6→6 |
6753 measured reflections | l = −7→8 |
Refinement on F2 | Hydrogen site location: inferred from neighbouring sites |
Least-squares matrix: full | H-atom parameters constrained |
R[F2 > 2σ(F2)] = 0.049 | w = 1/[σ2(Fo2) + (0.120P)2 + 0.2524P] where P = (Fo2 + 2Fc2)/3 |
wR(F2) = 0.157 | (Δ/σ)max = 0.002 |
S = 0.95 | Δρmax = 0.95 e Å−3 |
2520 reflections | Δρmin = −0.75 e Å−3 |
210 parameters | Extinction correction: SHELXL97 (Sheldrick, 2008) |
1 restraint | Extinction coefficient: 0.0113 (15) |
Primary atom site location: structure-invariant direct methods | Absolute structure: Flack (1983), 1075 Friedel pairs |
Secondary atom site location: difference Fourier map | Absolute structure parameter: 0.01 (2) |
C15H12BrN3O4 | V = 1464.5 (8) Å3 |
Mr = 378.19 | Z = 4 |
Orthorhombic, Pna21 | Mo Kα radiation |
a = 40.381 (13) Å | µ = 2.83 mm−1 |
b = 5.0598 (16) Å | T = 298 K |
c = 7.168 (2) Å | 0.35 × 0.23 × 0.14 mm |
Bruker SMART CCD area-detector diffractometer | 2520 independent reflections |
Absorption correction: multi-scan (SADABS; Sheldrick, 1996) | 2074 reflections with I > 2σ(I) |
Tmin = 0.441, Tmax = 0.689 | Rint = 0.040 |
6753 measured reflections |
R[F2 > 2σ(F2)] = 0.049 | H-atom parameters constrained |
wR(F2) = 0.157 | Δρmax = 0.95 e Å−3 |
S = 0.95 | Δρmin = −0.75 e Å−3 |
2520 reflections | Absolute structure: Flack (1983), 1075 Friedel pairs |
210 parameters | Absolute structure parameter: 0.01 (2) |
1 restraint |
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 | ||
Br1 | 0.748669 (14) | 0.63795 (13) | 0.8107 (3) | 0.0527 (3) | |
N1 | 0.63083 (12) | 0.3604 (9) | 0.2325 (8) | 0.0407 (12) | |
N2 | 0.61516 (12) | 0.4290 (9) | 0.0655 (7) | 0.0398 (12) | |
H2A | 0.6165 | 0.5855 | 0.0194 | 0.048* | |
N3 | 0.53035 (13) | 0.4393 (12) | −0.7014 (9) | 0.0537 (14) | |
O1 | 0.63214 (10) | 0.0383 (8) | 0.5025 (7) | 0.0454 (10) | |
H1 | 0.6246 | 0.1078 | 0.4084 | 0.068* | |
O2 | 0.59928 (11) | 0.0029 (8) | 0.0369 (7) | 0.0534 (12) | |
O3 | 0.50841 (18) | 0.2902 (13) | −0.7491 (10) | 0.094 (2) | |
O4 | 0.53936 (16) | 0.6248 (14) | −0.7978 (10) | 0.087 (2) | |
C1 | 0.71150 (13) | 0.4542 (11) | 0.7103 (8) | 0.0383 (13) | |
C2 | 0.69852 (14) | 0.2403 (12) | 0.8090 (10) | 0.0460 (13) | |
H2 | 0.7078 | 0.1873 | 0.9219 | 0.055* | |
C3 | 0.67161 (18) | 0.1098 (12) | 0.7345 (10) | 0.0477 (16) | |
H3 | 0.6625 | −0.0310 | 0.8000 | 0.057* | |
C4 | 0.65783 (15) | 0.1816 (11) | 0.5655 (9) | 0.0363 (13) | |
C5 | 0.67081 (14) | 0.4039 (10) | 0.4651 (8) | 0.0330 (12) | |
C6 | 0.69784 (13) | 0.5350 (10) | 0.5410 (8) | 0.0352 (12) | |
H6 | 0.7070 | 0.6784 | 0.4781 | 0.042* | |
C7 | 0.65665 (13) | 0.4916 (10) | 0.2846 (7) | 0.0329 (12) | |
C8 | 0.67260 (16) | 0.7035 (12) | 0.1733 (9) | 0.0434 (15) | |
H8A | 0.6657 | 0.6895 | 0.0455 | 0.065* | |
H8B | 0.6962 | 0.6853 | 0.1804 | 0.065* | |
H8C | 0.6662 | 0.8728 | 0.2218 | 0.065* | |
C9 | 0.59767 (14) | 0.2338 (11) | −0.0194 (9) | 0.0405 (14) | |
C10 | 0.57928 (12) | 0.3074 (10) | −0.1896 (10) | 0.0353 (11) | |
C11 | 0.55293 (16) | 0.1454 (12) | −0.2431 (10) | 0.0451 (17) | |
H11 | 0.5465 | 0.0060 | −0.1667 | 0.054* | |
C12 | 0.53649 (15) | 0.1907 (12) | −0.4076 (10) | 0.0462 (15) | |
H12 | 0.5186 | 0.0856 | −0.4425 | 0.055* | |
C13 | 0.54701 (15) | 0.3955 (11) | −0.5200 (9) | 0.0411 (14) | |
C14 | 0.57239 (14) | 0.5633 (11) | −0.4717 (9) | 0.0410 (13) | |
H14 | 0.5786 | 0.7022 | −0.5492 | 0.049* | |
C15 | 0.58848 (15) | 0.5181 (11) | −0.3029 (9) | 0.0432 (14) | |
H15 | 0.6055 | 0.6298 | −0.2655 | 0.052* |
U11 | U22 | U33 | U12 | U13 | U23 | |
Br1 | 0.0513 (4) | 0.0578 (4) | 0.0490 (4) | 0.0046 (3) | −0.0137 (3) | −0.0030 (5) |
N1 | 0.050 (3) | 0.036 (3) | 0.035 (3) | 0.004 (2) | −0.007 (2) | 0.000 (2) |
N2 | 0.053 (3) | 0.032 (2) | 0.034 (3) | −0.004 (2) | −0.011 (2) | 0.002 (2) |
N3 | 0.055 (3) | 0.057 (3) | 0.050 (4) | 0.001 (2) | −0.015 (3) | −0.001 (3) |
O1 | 0.060 (3) | 0.030 (2) | 0.046 (3) | −0.0088 (19) | 0.002 (2) | 0.013 (2) |
O2 | 0.077 (3) | 0.030 (2) | 0.054 (3) | −0.003 (2) | −0.018 (2) | 0.001 (2) |
O3 | 0.112 (4) | 0.084 (4) | 0.086 (6) | −0.029 (4) | −0.056 (4) | 0.015 (3) |
O4 | 0.079 (4) | 0.115 (5) | 0.067 (4) | −0.022 (3) | −0.021 (3) | 0.032 (4) |
C1 | 0.046 (3) | 0.039 (3) | 0.031 (3) | 0.007 (2) | −0.004 (2) | −0.010 (3) |
C2 | 0.066 (3) | 0.047 (3) | 0.025 (3) | 0.011 (3) | −0.004 (3) | 0.013 (3) |
C3 | 0.072 (4) | 0.038 (3) | 0.033 (3) | 0.005 (3) | 0.006 (3) | 0.012 (3) |
C4 | 0.044 (3) | 0.029 (3) | 0.035 (3) | 0.005 (2) | 0.005 (2) | 0.001 (2) |
C5 | 0.037 (3) | 0.028 (3) | 0.034 (3) | 0.005 (2) | 0.006 (2) | 0.004 (2) |
C6 | 0.044 (3) | 0.028 (3) | 0.034 (3) | 0.000 (2) | 0.002 (2) | 0.006 (2) |
C7 | 0.044 (3) | 0.023 (2) | 0.031 (3) | 0.003 (2) | 0.001 (2) | −0.002 (2) |
C8 | 0.056 (4) | 0.041 (3) | 0.033 (4) | −0.004 (3) | −0.005 (3) | 0.005 (3) |
C9 | 0.039 (3) | 0.034 (3) | 0.048 (4) | 0.000 (3) | 0.000 (3) | −0.009 (3) |
C10 | 0.037 (2) | 0.030 (2) | 0.039 (3) | 0.0031 (19) | −0.005 (3) | −0.009 (3) |
C11 | 0.045 (3) | 0.035 (3) | 0.055 (5) | −0.004 (2) | 0.001 (3) | 0.004 (3) |
C12 | 0.044 (3) | 0.041 (3) | 0.053 (4) | −0.007 (3) | −0.009 (3) | 0.002 (3) |
C13 | 0.040 (3) | 0.044 (3) | 0.040 (4) | 0.003 (2) | −0.007 (2) | −0.012 (3) |
C14 | 0.048 (3) | 0.036 (3) | 0.039 (4) | −0.002 (3) | −0.002 (3) | −0.002 (3) |
C15 | 0.047 (3) | 0.036 (3) | 0.047 (4) | −0.004 (3) | −0.003 (3) | −0.005 (3) |
Br1—C1 | 1.906 (6) | C5—C6 | 1.388 (8) |
N1—C7 | 1.291 (7) | C5—C7 | 1.483 (8) |
N1—N2 | 1.397 (7) | C6—H6 | 0.9300 |
N2—C9 | 1.358 (7) | C7—C8 | 1.484 (8) |
N2—H2A | 0.8600 | C8—H8A | 0.9600 |
N3—O3 | 1.213 (8) | C8—H8B | 0.9600 |
N3—O4 | 1.221 (8) | C8—H8C | 0.9600 |
N3—C13 | 1.480 (8) | C9—C10 | 1.476 (9) |
O1—C4 | 1.344 (8) | C10—C15 | 1.391 (9) |
O1—H1 | 0.8200 | C10—C11 | 1.396 (8) |
O2—C9 | 1.238 (7) | C11—C12 | 1.373 (10) |
C1—C6 | 1.394 (8) | C11—H11 | 0.9300 |
C1—C2 | 1.395 (9) | C12—C13 | 1.380 (9) |
C2—C3 | 1.380 (10) | C12—H12 | 0.9300 |
C2—H2 | 0.9300 | C13—C14 | 1.375 (8) |
C3—C4 | 1.381 (10) | C14—C15 | 1.393 (9) |
C3—H3 | 0.9300 | C14—H14 | 0.9300 |
C4—C5 | 1.435 (8) | C15—H15 | 0.9300 |
C7—N1—N2 | 119.1 (5) | C5—C7—C8 | 121.2 (5) |
C9—N2—N1 | 116.0 (5) | C7—C8—H8A | 109.5 |
C9—N2—H2A | 122.0 | C7—C8—H8B | 109.5 |
N1—N2—H2A | 122.0 | H8A—C8—H8B | 109.5 |
O3—N3—O4 | 122.4 (7) | C7—C8—H8C | 109.5 |
O3—N3—C13 | 119.1 (6) | H8A—C8—H8C | 109.5 |
O4—N3—C13 | 118.5 (5) | H8B—C8—H8C | 109.5 |
C4—O1—H1 | 109.5 | O2—C9—N2 | 120.8 (6) |
C6—C1—C2 | 121.3 (5) | O2—C9—C10 | 122.3 (5) |
C6—C1—Br1 | 119.8 (4) | N2—C9—C10 | 116.7 (5) |
C2—C1—Br1 | 118.9 (5) | C15—C10—C11 | 119.6 (6) |
C3—C2—C1 | 118.1 (6) | C15—C10—C9 | 122.8 (5) |
C3—C2—H2 | 121.0 | C11—C10—C9 | 117.5 (5) |
C1—C2—H2 | 121.0 | C12—C11—C10 | 120.4 (6) |
C2—C3—C4 | 122.1 (6) | C12—C11—H11 | 119.8 |
C2—C3—H3 | 119.0 | C10—C11—H11 | 119.8 |
C4—C3—H3 | 119.0 | C11—C12—C13 | 118.6 (6) |
O1—C4—C3 | 117.6 (6) | C11—C12—H12 | 120.7 |
O1—C4—C5 | 122.4 (5) | C13—C12—H12 | 120.7 |
C3—C4—C5 | 119.9 (6) | C14—C13—C12 | 123.1 (6) |
C6—C5—C4 | 117.7 (5) | C14—C13—N3 | 117.8 (6) |
C6—C5—C7 | 120.1 (5) | C12—C13—N3 | 119.0 (5) |
C4—C5—C7 | 122.1 (5) | C13—C14—C15 | 117.7 (6) |
C5—C6—C1 | 120.8 (5) | C13—C14—H14 | 121.1 |
C5—C6—H6 | 119.6 | C15—C14—H14 | 121.1 |
C1—C6—H6 | 119.6 | C10—C15—C14 | 120.6 (5) |
N1—C7—C5 | 114.2 (5) | C10—C15—H15 | 119.7 |
N1—C7—C8 | 124.5 (5) | C14—C15—H15 | 119.7 |
C7—N1—N2—C9 | 154.7 (5) | N1—N2—C9—O2 | −8.8 (8) |
C6—C1—C2—C3 | −0.1 (9) | N1—N2—C9—C10 | 176.3 (5) |
Br1—C1—C2—C3 | 179.9 (5) | O2—C9—C10—C15 | −149.2 (6) |
C1—C2—C3—C4 | 1.2 (10) | N2—C9—C10—C15 | 25.6 (8) |
C2—C3—C4—O1 | 178.5 (6) | O2—C9—C10—C11 | 26.5 (8) |
C2—C3—C4—C5 | −2.2 (9) | N2—C9—C10—C11 | −158.7 (5) |
O1—C4—C5—C6 | −178.7 (5) | C15—C10—C11—C12 | 1.0 (9) |
C3—C4—C5—C6 | 1.9 (8) | C9—C10—C11—C12 | −174.9 (5) |
O1—C4—C5—C7 | 0.2 (8) | C10—C11—C12—C13 | 1.3 (10) |
C3—C4—C5—C7 | −179.2 (5) | C11—C12—C13—C14 | −2.6 (10) |
C4—C5—C6—C1 | −0.8 (8) | C11—C12—C13—N3 | 177.5 (6) |
C7—C5—C6—C1 | −179.8 (5) | O3—N3—C13—C14 | 178.3 (7) |
C2—C1—C6—C5 | −0.1 (8) | O4—N3—C13—C14 | −1.5 (9) |
Br1—C1—C6—C5 | 179.9 (4) | O3—N3—C13—C12 | −1.8 (10) |
N2—N1—C7—C5 | 179.1 (4) | O4—N3—C13—C12 | 178.4 (7) |
N2—N1—C7—C8 | −4.0 (8) | C12—C13—C14—C15 | 1.5 (9) |
C6—C5—C7—N1 | −177.5 (5) | N3—C13—C14—C15 | −178.6 (5) |
C4—C5—C7—N1 | 3.6 (7) | C11—C10—C15—C14 | −2.2 (9) |
C6—C5—C7—C8 | 5.5 (8) | C9—C10—C15—C14 | 173.5 (5) |
C4—C5—C7—C8 | −173.4 (6) | C13—C14—C15—C10 | 0.9 (9) |
D—H···A | D—H | H···A | D···A | D—H···A |
N2—H2A···O2i | 0.86 | 2.23 | 2.981 (6) | 146 |
O1—H1···N1 | 0.82 | 1.81 | 2.531 (7) | 145 |
Symmetry code: (i) x, y+1, z. |
Experimental details
Crystal data | |
Chemical formula | C15H12BrN3O4 |
Mr | 378.19 |
Crystal system, space group | Orthorhombic, Pna21 |
Temperature (K) | 298 |
a, b, c (Å) | 40.381 (13), 5.0598 (16), 7.168 (2) |
V (Å3) | 1464.5 (8) |
Z | 4 |
Radiation type | Mo Kα |
µ (mm−1) | 2.83 |
Crystal size (mm) | 0.35 × 0.23 × 0.14 |
Data collection | |
Diffractometer | Bruker SMART CCD area-detector diffractometer |
Absorption correction | Multi-scan (SADABS; Sheldrick, 1996) |
Tmin, Tmax | 0.441, 0.689 |
No. of measured, independent and observed [I > 2σ(I)] reflections | 6753, 2520, 2074 |
Rint | 0.040 |
(sin θ/λ)max (Å−1) | 0.599 |
Refinement | |
R[F2 > 2σ(F2)], wR(F2), S | 0.049, 0.157, 0.95 |
No. of reflections | 2520 |
No. of parameters | 210 |
No. of restraints | 1 |
H-atom treatment | H-atom parameters constrained |
Δρmax, Δρmin (e Å−3) | 0.95, −0.75 |
Absolute structure | Flack (1983), 1075 Friedel pairs |
Absolute structure parameter | 0.01 (2) |
Computer programs: SMART (Bruker, 1996), SAINT (Bruker, 1996), SHELXS97 (Sheldrick, 2008), SHELXL97 (Sheldrick, 2008), SHELXTL (Sheldrick, 2008).
D—H···A | D—H | H···A | D···A | D—H···A |
N2—H2A···O2i | 0.860 | 2.227 | 2.981 (6) | 146.26 |
O1—H1···N1 | 0.820 | 1.813 | 2.531 (7) | 145.31 |
Symmetry code: (i) x, y+1, z. |
Acknowledgements
The authors thank the National Natural Science Foundation of Shaanxi Province, China (2009JM2012) for financial support.
References
Ali, H. M., Khamis, N. A. & Yamin, B. M. (2004). Acta Cryst. E60, m1708–m1709. Web of Science CSD CrossRef IUCr Journals Google Scholar
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Carcelli, M., Mazza, P., Pelizzi, G. & Zani, F. (1995). J. Inorg. Biochem. 57, 43–62. CrossRef CAS PubMed Web of Science Google Scholar
Sheldrick, G. M. (1996). SADABS. University of Göttingen, Germany. Google Scholar
Sheldrick, G. M. (2008). Acta Cryst. A64, 112–122. Web of Science CrossRef CAS IUCr Journals Google Scholar
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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.
The chemistry of aroylhydrazones continues to attract much attention due to their coordination ability to metal ions (Zhang et al., 2011; Zheng et al., 2008; Ali et al., 2004) and their biological activity (Carcelli et al., 1995). As an extension of work on the structural characterization of aroylhydrazone derivatives, the title compound, C15H12N3O4Br, was synthesized and its crystal structure is reported here.
The title compound, C15H12N3O4Br, displays a trans conformation with respect to the C=N double bond (Fig. 1). The central atoms around the C=N double bond are not coplanar since the dihedral angle C7—N1—N2—C9 is 154.7 (5)° in contrast to the aromatic rings which exhibit a dihedral angle of 1.80 (4)° between their mean planes. In the crystal structure, one intramolecular O—H···N hydrogen bond occurs (Table 1). The molecules are connected via intermolecular N—H···O into one-dimensional linear chains along the a axis (Table 1; Fig. 2).