organic compounds
E)-N′-benzylidene-2-methoxybenzohydrazide
of (aAtta-ur-Rahman Institute for Natural Product Discovery, Universiti Teknologi MARA (UiTM), Puncak Alam Campus, 42300 Bandar Puncak Alam, Selangor D.E., Malaysia, bFaculty of Applied Science, Universiti Teknologi MARA (UiTM), 40450 Shah Alam, Selangor D.E., Malaysia, cSchool of Chemical Sciences and Food Technology, Faculty of Science and Technology, Universiti Kabangsaan Malaysia, 43600 Bangi, Selangor, Malaysia, and dFaculty of Pharmacy, Universiti Tecknologi MARA, Puncak Alam, 42300 Selangor, Malaysia
*Correspondence e-mail: humera@salam.uitm.edu.my
In the title benzoylhydrazide derivative, C15H14N2O2, the dihedral angle between the planes of the two phenyl rings is 12.56 (9)°. The azomethine double bond adopts an E configuration stabilized by an N—H⋯O hydrogen bond. In the crystal, the components are linked by C—H⋯O interactions to form chains along the b axis.
Keywords: crystal structure; benzohydrazide; Schiff base; hydrogen bonding.
CCDC reference: 1020647
1. Related literature
For applications and biological activities of et al. (2013, 2014); Musharraf et al. (2012); Kaymakcioglu et al. (2006); Kucukguzel et al. (2003, 2004); Melnyk et al. (2006); Pandeya et al. (1999); Tarafder et al. (2002); Terzioglu & Gursoy (2003); Todeschini et al. (1998). For the crystal structures of related compounds, see: Taha et al. (2013).
see: Taha2. Experimental
2.1. Crystal data
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2.1.3. Refinement
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Data collection: SMART (Bruker, 2000); cell SAINT (Bruker, 2000); data reduction: SAINT; program(s) used to solve structure: SHELXTL (Sheldrick, 2008); program(s) used to refine structure: SHELXTL; molecular graphics: SHELXTL; software used to prepare material for publication: SHELXTL, PARST (Nardelli, 1995) and PLATON (Spek, 2009).
Supporting information
CCDC reference: 1020647
10.1107/S1600536814019011/bg2535sup1.cif
contains datablocks global, I. DOI:Structure factors: contains datablock I. DOI: 10.1107/S1600536814019011/bg2535Isup2.hkl
Supporting information file. DOI: 10.1107/S1600536814019011/bg2535Isup3.cml
The title compound was synthesized by refluxing a mixture of 2 mmol of 2-methoxybenzohydrazide (0.332 g), 2 mmol benzaldehyde (0.212 g) and catalytic amount of acetic acid in methanol (20 ml) for 3 h. The progress of the reaction was monitored by TLC. After completion of the reaction, the solvent was evaporated by vacuum to afford crude product which was further recrystallized in methanol to afford needle like pure product in 88% yield (0.447 g). All the chemicals were purchased from sigma Aldrich Germany.
H atoms were positioned geometrically with C—H = 0.93/0.96 Å, N-H = 0.86 Å respectively, and constrained to ride on their parent atoms with Uiso(H)= 1.2/1.5 Ueq(CH).
Data collection: SMART (Bruker, 2000); cell
SAINT (Bruker, 2000); data reduction: SAINT (Bruker, 2000); program(s) used to solve structure: SHELXTL (Sheldrick, 2008); program(s) used to refine structure: SHELXTL (Sheldrick, 2008); molecular graphics: SHELXTL (Sheldrick, 2008); software used to prepare material for publication: SHELXTL (Sheldrick, 2008), PARST (Nardelli, 1995) and PLATON (Spek, 2009).C15H14N2O2 | Dx = 1.272 Mg m−3 |
Mr = 254.28 | Melting point = 449–451 K |
Orthorhombic, Pbca | Mo Kα radiation, λ = 0.71073 Å |
a = 13.3135 (9) Å | Cell parameters from 9899 reflections |
b = 9.9581 (6) Å | θ = 3.0–25.5° |
c = 20.0278 (14) Å | µ = 0.09 mm−1 |
V = 2655.2 (3) Å3 | T = 296 K |
Z = 8 | Block, colourless |
F(000) = 1072 | 0.50 × 0.48 × 0.31 mm |
Bruker SMART APEX CCD area-detector diffractometer | 2462 independent reflections |
Radiation source: fine-focus sealed tube | 1819 reflections with I > 2σ(I) |
Graphite monochromator | Rint = 0.049 |
Detector resolution: 83.66 pixels mm-1 | θmax = 25.5°, θmin = 3.0° |
ω scan | h = −16→16 |
Absorption correction: multi-scan (SADABS; Bruker, 2000) | k = −11→12 |
Tmin = 0.94, Tmax = 0.97 | l = −24→24 |
38941 measured 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)] = 0.038 | Hydrogen site location: inferred from neighbouring sites |
wR(F2) = 0.103 | H-atom parameters constrained |
S = 1.08 | w = 1/[σ2(Fo2) + (0.0361P)2 + 0.849P] where P = (Fo2 + 2Fc2)/3 |
2462 reflections | (Δ/σ)max < 0.001 |
174 parameters | Δρmax = 0.13 e Å−3 |
0 restraints | Δρmin = −0.14 e Å−3 |
C15H14N2O2 | V = 2655.2 (3) Å3 |
Mr = 254.28 | Z = 8 |
Orthorhombic, Pbca | Mo Kα radiation |
a = 13.3135 (9) Å | µ = 0.09 mm−1 |
b = 9.9581 (6) Å | T = 296 K |
c = 20.0278 (14) Å | 0.50 × 0.48 × 0.31 mm |
Bruker SMART APEX CCD area-detector diffractometer | 2462 independent reflections |
Absorption correction: multi-scan (SADABS; Bruker, 2000) | 1819 reflections with I > 2σ(I) |
Tmin = 0.94, Tmax = 0.97 | Rint = 0.049 |
38941 measured reflections |
R[F2 > 2σ(F2)] = 0.038 | 0 restraints |
wR(F2) = 0.103 | H-atom parameters constrained |
S = 1.08 | Δρmax = 0.13 e Å−3 |
2462 reflections | Δρmin = −0.14 e Å−3 |
174 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 | ||
O1 | 0.67310 (8) | −0.00143 (12) | 0.55943 (6) | 0.0569 (3) | |
O2 | 0.92308 (8) | 0.22579 (11) | 0.51387 (6) | 0.0575 (3) | |
N1 | 0.69422 (9) | 0.21778 (14) | 0.63568 (6) | 0.0481 (4) | |
N2 | 0.75847 (10) | 0.18784 (14) | 0.58377 (6) | 0.0486 (3) | |
H2A | 0.8086 | 0.2394 | 0.5750 | 0.058* | |
C1 | 0.65053 (12) | 0.36836 (17) | 0.72316 (7) | 0.0466 (4) | |
C2 | 0.66885 (14) | 0.4903 (2) | 0.75366 (10) | 0.0661 (5) | |
H2B | 0.7240 | 0.5414 | 0.7408 | 0.079* | |
C3 | 0.60545 (17) | 0.5369 (2) | 0.80336 (11) | 0.0797 (6) | |
H3A | 0.6183 | 0.6190 | 0.8238 | 0.096* | |
C4 | 0.52403 (16) | 0.4624 (2) | 0.82254 (10) | 0.0733 (6) | |
H4A | 0.4806 | 0.4946 | 0.8552 | 0.088* | |
C5 | 0.50683 (15) | 0.3407 (2) | 0.79347 (10) | 0.0701 (6) | |
H5A | 0.4523 | 0.2891 | 0.8071 | 0.084* | |
C6 | 0.56950 (13) | 0.29365 (18) | 0.74411 (9) | 0.0585 (5) | |
H6A | 0.5570 | 0.2105 | 0.7247 | 0.070* | |
C9 | 0.80953 (11) | 0.05112 (16) | 0.48857 (7) | 0.0434 (4) | |
C14 | 0.78281 (13) | −0.05488 (19) | 0.44740 (9) | 0.0587 (5) | |
H14A | 0.7254 | −0.1042 | 0.4573 | 0.070* | |
C13 | 0.83879 (16) | −0.0892 (2) | 0.39229 (10) | 0.0727 (6) | |
H13A | 0.8196 | −0.1609 | 0.3654 | 0.087* | |
C12 | 0.92326 (16) | −0.0164 (2) | 0.37740 (10) | 0.0730 (6) | |
H12A | 0.9613 | −0.0389 | 0.3401 | 0.088* | |
C11 | 0.95232 (14) | 0.08876 (19) | 0.41671 (9) | 0.0605 (5) | |
H11A | 1.0097 | 0.1374 | 0.4058 | 0.073* | |
C10 | 0.89683 (11) | 0.12330 (16) | 0.47268 (8) | 0.0452 (4) | |
C15 | 1.00920 (14) | 0.30448 (19) | 0.49805 (10) | 0.0662 (5) | |
H15A | 1.0165 | 0.3749 | 0.5304 | 0.099* | |
H15B | 1.0012 | 0.3431 | 0.4545 | 0.099* | |
H15C | 1.0679 | 0.2485 | 0.4986 | 0.099* | |
C7 | 0.71491 (11) | 0.32331 (17) | 0.66852 (7) | 0.0472 (4) | |
H7A | 0.7719 | 0.3726 | 0.6576 | 0.057* | |
C8 | 0.74169 (11) | 0.07632 (16) | 0.54683 (7) | 0.0431 (4) |
U11 | U22 | U33 | U12 | U13 | U23 | |
O1 | 0.0488 (7) | 0.0567 (7) | 0.0652 (8) | −0.0047 (6) | 0.0131 (6) | 0.0040 (6) |
O2 | 0.0509 (7) | 0.0553 (7) | 0.0664 (8) | −0.0085 (5) | 0.0210 (6) | −0.0075 (6) |
N1 | 0.0414 (7) | 0.0615 (9) | 0.0413 (7) | 0.0032 (6) | 0.0088 (6) | 0.0011 (7) |
N2 | 0.0402 (7) | 0.0594 (9) | 0.0461 (7) | −0.0032 (6) | 0.0126 (6) | −0.0014 (7) |
C1 | 0.0436 (9) | 0.0579 (10) | 0.0383 (8) | 0.0066 (8) | −0.0003 (7) | 0.0039 (7) |
C2 | 0.0573 (11) | 0.0763 (13) | 0.0649 (11) | −0.0044 (10) | 0.0020 (9) | −0.0128 (10) |
C3 | 0.0799 (14) | 0.0884 (15) | 0.0708 (13) | 0.0113 (12) | 0.0001 (12) | −0.0298 (12) |
C4 | 0.0756 (14) | 0.0940 (16) | 0.0504 (11) | 0.0258 (12) | 0.0128 (10) | −0.0019 (11) |
C5 | 0.0690 (13) | 0.0747 (14) | 0.0665 (12) | 0.0094 (10) | 0.0263 (10) | 0.0095 (11) |
C6 | 0.0602 (11) | 0.0581 (10) | 0.0574 (10) | 0.0037 (8) | 0.0167 (9) | 0.0015 (9) |
C9 | 0.0390 (8) | 0.0476 (9) | 0.0435 (9) | 0.0065 (7) | 0.0018 (7) | 0.0047 (7) |
C14 | 0.0561 (11) | 0.0653 (11) | 0.0547 (10) | −0.0044 (9) | 0.0022 (8) | −0.0046 (9) |
C13 | 0.0794 (14) | 0.0804 (14) | 0.0584 (12) | −0.0032 (12) | 0.0064 (10) | −0.0198 (10) |
C12 | 0.0764 (13) | 0.0871 (15) | 0.0556 (11) | 0.0023 (12) | 0.0211 (10) | −0.0119 (11) |
C11 | 0.0577 (11) | 0.0671 (12) | 0.0569 (11) | 0.0002 (9) | 0.0193 (9) | 0.0003 (9) |
C10 | 0.0444 (9) | 0.0465 (9) | 0.0446 (9) | 0.0079 (7) | 0.0063 (7) | 0.0031 (7) |
C15 | 0.0567 (11) | 0.0658 (12) | 0.0762 (12) | −0.0137 (9) | 0.0166 (9) | −0.0003 (10) |
C7 | 0.0382 (8) | 0.0613 (11) | 0.0420 (8) | 0.0012 (8) | 0.0029 (7) | 0.0044 (8) |
C8 | 0.0357 (8) | 0.0489 (9) | 0.0447 (8) | 0.0063 (7) | 0.0019 (7) | 0.0078 (7) |
O1—C8 | 1.2236 (18) | C5—H5A | 0.9300 |
O2—C10 | 1.3579 (19) | C6—H6A | 0.9300 |
O2—C15 | 1.424 (2) | C9—C14 | 1.386 (2) |
N1—C7 | 1.270 (2) | C9—C10 | 1.403 (2) |
N1—N2 | 1.3790 (17) | C9—C8 | 1.497 (2) |
N2—C8 | 1.353 (2) | C14—C13 | 1.375 (2) |
N2—H2A | 0.8600 | C14—H14A | 0.9300 |
C1—C6 | 1.376 (2) | C13—C12 | 1.371 (3) |
C1—C2 | 1.381 (2) | C13—H13A | 0.9300 |
C1—C7 | 1.461 (2) | C12—C11 | 1.366 (3) |
C2—C3 | 1.385 (3) | C12—H12A | 0.9300 |
C2—H2B | 0.9300 | C11—C10 | 1.386 (2) |
C3—C4 | 1.368 (3) | C11—H11A | 0.9300 |
C3—H3A | 0.9300 | C15—H15A | 0.9600 |
C4—C5 | 1.364 (3) | C15—H15B | 0.9600 |
C4—H4A | 0.9300 | C15—H15C | 0.9600 |
C5—C6 | 1.376 (2) | C7—H7A | 0.9300 |
C10—O2—C15 | 119.05 (13) | C13—C14—H14A | 119.1 |
C7—N1—N2 | 115.77 (13) | C9—C14—H14A | 119.1 |
C8—N2—N1 | 119.16 (13) | C12—C13—C14 | 119.22 (19) |
C8—N2—H2A | 120.4 | C12—C13—H13A | 120.4 |
N1—N2—H2A | 120.4 | C14—C13—H13A | 120.4 |
C6—C1—C2 | 118.61 (16) | C11—C12—C13 | 120.82 (18) |
C6—C1—C7 | 121.51 (16) | C11—C12—H12A | 119.6 |
C2—C1—C7 | 119.86 (16) | C13—C12—H12A | 119.6 |
C1—C2—C3 | 120.31 (19) | C12—C11—C10 | 120.36 (17) |
C1—C2—H2B | 119.8 | C12—C11—H11A | 119.8 |
C3—C2—H2B | 119.8 | C10—C11—H11A | 119.8 |
C4—C3—C2 | 120.2 (2) | O2—C10—C11 | 122.73 (15) |
C4—C3—H3A | 119.9 | O2—C10—C9 | 117.41 (13) |
C2—C3—H3A | 119.9 | C11—C10—C9 | 119.86 (16) |
C5—C4—C3 | 119.64 (18) | O2—C15—H15A | 109.5 |
C5—C4—H4A | 120.2 | O2—C15—H15B | 109.5 |
C3—C4—H4A | 120.2 | H15A—C15—H15B | 109.5 |
C4—C5—C6 | 120.5 (2) | O2—C15—H15C | 109.5 |
C4—C5—H5A | 119.8 | H15A—C15—H15C | 109.5 |
C6—C5—H5A | 119.8 | H15B—C15—H15C | 109.5 |
C5—C6—C1 | 120.70 (18) | N1—C7—C1 | 120.99 (15) |
C5—C6—H6A | 119.7 | N1—C7—H7A | 119.5 |
C1—C6—H6A | 119.7 | C1—C7—H7A | 119.5 |
C14—C9—C10 | 117.90 (15) | O1—C8—N2 | 122.00 (14) |
C14—C9—C8 | 115.89 (14) | O1—C8—C9 | 120.33 (15) |
C10—C9—C8 | 126.21 (14) | N2—C8—C9 | 117.66 (14) |
C13—C14—C9 | 121.84 (17) | ||
C7—N1—N2—C8 | 179.48 (14) | C12—C11—C10—O2 | 179.16 (17) |
C6—C1—C2—C3 | −1.2 (3) | C12—C11—C10—C9 | −0.9 (3) |
C7—C1—C2—C3 | 176.93 (17) | C14—C9—C10—O2 | −179.12 (14) |
C1—C2—C3—C4 | −0.1 (3) | C8—C9—C10—O2 | 0.2 (2) |
C2—C3—C4—C5 | 1.4 (3) | C14—C9—C10—C11 | 0.9 (2) |
C3—C4—C5—C6 | −1.4 (3) | C8—C9—C10—C11 | −179.76 (15) |
C4—C5—C6—C1 | 0.0 (3) | N2—N1—C7—C1 | 177.81 (13) |
C2—C1—C6—C5 | 1.3 (3) | C6—C1—C7—N1 | 4.7 (2) |
C7—C1—C6—C5 | −176.83 (16) | C2—C1—C7—N1 | −173.47 (16) |
C10—C9—C14—C13 | −0.4 (3) | N1—N2—C8—O1 | −2.5 (2) |
C8—C9—C14—C13 | −179.76 (17) | N1—N2—C8—C9 | 176.67 (13) |
C9—C14—C13—C12 | −0.2 (3) | C14—C9—C8—O1 | 6.6 (2) |
C14—C13—C12—C11 | 0.3 (3) | C10—C9—C8—O1 | −172.75 (15) |
C13—C12—C11—C10 | 0.3 (3) | C14—C9—C8—N2 | −172.60 (14) |
C15—O2—C10—C11 | 2.2 (2) | C10—C9—C8—N2 | 8.1 (2) |
C15—O2—C10—C9 | −177.76 (15) |
D—H···A | D—H | H···A | D···A | D—H···A |
N2—H2A···O2 | 0.86 | 1.96 | 2.6278 (17) | 134 |
C7—H7A···O1i | 0.93 | 2.44 | 3.1690 (19) | 135 |
C14—H14A···O1 | 0.93 | 2.39 | 2.730 (2) | 101 |
Symmetry code: (i) −x+3/2, y+1/2, z. |
D—H···A | D—H | H···A | D···A | D—H···A |
N2—H2A···O2 | 0.86 | 1.96 | 2.6278 (17) | 134 |
C7—H7A···O1i | 0.93 | 2.44 | 3.1690 (19) | 135 |
Symmetry code: (i) −x+3/2, y+1/2, z. |
Acknowledgements
The authors would like to acknowledge Universiti Teknologi MARA for the financial support under the Research Intensive Faculty Grant Scheme [reference number 600-RMI/DANA/5/3/RIF (67/2012)].
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Applications of benzoylhydrazones are reported in medicinal and analytical chemistry (Tarafder et al., 2002). Benzoylhydrazones having heterocyclic rings have been reported to have antiglycation (Taha et al., 2014), anticonvulsant (Kucukguzel et al.,2004), antiproliferative (Kucukguzel et al., 2003), antifungal and anti-HIV activities (Pandeya et al., 1999). Several benzoylhydrazones have also shown interesting bioactivities including antinflammatory (Todeschini et al., 1998), antibacterial (Kaymakcioglu et al., 2006), antimalarial (Melnyk et al., 2006) and anticancer (Terzioglu & Gursoy, 2003). Recently they have been suggested as an alternative in UV-laser desorption ionization (LDI) matrices for peptides analysis (Musharraf et al., 2012). The structure of the title compound (Fig. 1) is similar to (E)-2-methoxy-N'-(2,4,6-trihydroxybenzylidene) benzohydrazide (Taha et al., 2013), the difference residing in that the trihydroxyphenyl ring has been replaced by a non-substitutedphenyl ring (C1–C6). The bond lengths and angle were found to be similar to the structurally related benzohydrazide derivatives reported in Taha et al., 2013. The E configuration around the azomethine double bond is stabilized by a N2—H2A···O2 intramolecular interaction. The crystal structure is in turn stabilized by the intermolecular C7—H7A···O1 interaction to form chains along the b axis (Table 2 and Fig. 2).