organic compounds
of 2-(4-fluoro-3-methylphenyl)-5-{[(naphthalen-1-yl)oxy]methyl}-1,3,4-oxadiazole
aDepartment of Chemistry, Anna University, Chennai 600 025, India, bOrchid Chemicals & Pharmaceuticals Ltd, R&D Centre, Sholinganallur, Chennai 600 119, India, and cCentre of Advanced Study in Crystallography and Biophysics, University of Madras, Guindy Campus, Chennai 600 025, India
*Correspondence e-mail: kathsubramanianannauniv@gmail.com
The title compound, C20H15FN2O2, adopts an almost planar conformation. The oxadiazole ring makes dihedral angles of 13.90 (1) and 7.93 (1)° with the naphthalene ring system and benzene ring, respectively, while the naphthalene ring system and benzene ring are inclined to one another by 6.35 (1)°. In the crystal, adjacent molecules are linked via C—H⋯N hydrogen bonds, forming chains propagating along [100]. There are also π–π interactions present [intercentroid distances = 3.5754 (9) and 3.7191 (12) Å], linking the chains to form ribbons lying parallel to (011).
Keywords: crystal structure; triazole; oxadiazole; naphthalene; hydrogen bonding; π–π interactions.
CCDC reference: 1051477
1. Related literature
For the biological activities of triazole derivatives, see: Desai et al. (2014), Khalilullah et al. (2012), Bethge et al. (2005); Saha et al. (2013); Shailaja et al. (2010); Sun et al. (2013).
2. Experimental
2.1. Crystal data
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2.3. Refinement
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Data collection: APEX2 (Bruker, 2008); cell SAINT (Bruker, 2008); data reduction: SAINT; program(s) used to solve structure: SHELXS97 (Sheldrick, 2008); program(s) used to refine structure: SHELXL97 (Sheldrick, 2008); molecular graphics: ORTEP-3 for Windows (Farrugia, 2012); software used to prepare material for publication: SHELXL97 and PLATON (Spek, 2009).
Supporting information
CCDC reference: 1051477
10.1107/S2056989015004144/su5076sup1.cif
contains datablocks global, I. DOI:Structure factors: contains datablock I. DOI: 10.1107/S2056989015004144/su5076Isup2.hkl
Supporting information file. DOI: 10.1107/S2056989015004144/su5076Isup3.cml
Iodobenzene diacetate (2.0 mol eq) was added to a solution of naphthalen -1-yloxy-acetic acid (4-fluoro-3-methyl-benzylidene)-hydrazide (1.0 mole eq) in dioxane (10mL) at 298 - 303 K, and stirred at the same temperature for 15-30 min. Completion of the reaction was confirmed by TLC (Mobile phase Ethyl acetate/hexane, 3:7) and dioxane was distilled off in a rota-vapor. The obtained residue was dissolved in ethyl acetate and washed with saturated sodium bicarbonate solution, followed by water and brine solution. The organic layer was collected and dried over anhydrous sodium sulphate and distilled under vacuum. The crude product obtained was purified by
over silica gel (60-120 mesh) using hexane and ethyl acetate as a to afford the title compound as an off-white solid. It was crystallised in methanol by slow evaporation giving colourless block-like crystals.The H atoms were placed in calculated positions and refined as riding atoms: C—H = 0.93 - 0.97 Å, with Uiso(H) = 1.5Ueq(C) for methyl H atoms and = 1.2Ueq(C) for other H atoms.
1,3,4-Oxadiazole derivatives as typical
exhibit a broad spectrum of biological activities and have polymer and material sciences application (Shailaja et al., 2010) and are vital leading compounds for the development of drugs (Sun et al., 2013). The presence of the oxadiazole motif in diverse types of compounds proves its importance in the field of medicinal chemistry (Saha et al., 2013).1,3,4-oxadiazole including anti-inflammatory, analgesic, anti-HIV, antimycobacterial, cathepsin K inhibitors, tyrosinase inhibitors, monoamine oxidase (MAO) inhibitors (Desai et al., 2014), anticonvulsant, anticancer, antifungal, tuberculostatic (Khalilullah et al., 2012), analgesic, antiplatelet and antithrombotic activities (Bethge et al., 2005). Moreover the amino compounds are very commonly used as antimicrobial and germicidal drug.
The molecular structure of the title compound is shown in Fig. 1. The oxadiazole, naphthalene and flurophenyl rings adopt an almost planer conformation. The oxadiazole ring (C12/N1/N2/C13/O2) makes dihedral angles of 13.90 (1) ° and 7.93 (1) ° with naphthalene (C1-C10) and benzene ring (C14-C19/F1). The naphthalene ring makes a dihedral angle of 6.35 (1) ° with the benzene ring. The fluorine atom F1 and the methyl group C20 atom lie in the plane of the benzene ring to which they are attached [deviations from the benzene ring plane are 0.004 (1) and 0.003 (3) Å, respectively].
In the crystal, adjacent molecules are linked via C-H···N hydrogen bonds forming chains propagating along [100]; see Table 1 and Fig. 2. The chains are linked by π-π interactions, forming ribbons lying parallel to (011) [Cg1··· Cg1i = 3.5754 (9) Å; inter-planar distance = 3.2669 (6) Å, slippage = 1.453 Å; Cg2···Cg4i = 3.7191 (12) Å; Cg1, Cg2 and Cg4 are the centroids of rings O2/N1/N2/C12/C13, C1-C6 and C14-C19, respectively; symmetry code: (i) -x, -y+1, -z+1].
For the biological activities of triazole derivatives, see: Desai et al. (2014), Khalilullah et al. (2012), Bethge et al. (2005); Saha et al. (2013); Shailaja et al. (2010); Sun et al. (2013).
Data collection: APEX2 (Bruker, 2008); cell
SAINT (Bruker, 2008); data reduction: SAINT (Bruker, 2008); program(s) used to solve structure: SHELXS97 (Sheldrick, 2008); program(s) used to refine structure: SHELXL97 (Sheldrick, 2008); molecular graphics: ORTEP-3 for Windows (Farrugia, 2012); software used to prepare material for publication: SHELXL97 (Sheldrick, 2008) and PLATON (Spek, 2009).C20H15FN2O2 | Z = 2 |
Mr = 334.34 | F(000) = 348 |
Triclinic, P1 | Dx = 1.375 Mg m−3 |
Hall symbol: -P 1 | Mo Kα radiation, λ = 0.71073 Å |
a = 7.4236 (4) Å | Cell parameters from 3368 reflections |
b = 7.5062 (4) Å | θ = 1.3–26.6° |
c = 16.3519 (8) Å | µ = 0.10 mm−1 |
α = 77.092 (3)° | T = 293 K |
β = 77.494 (3)° | Block, colourless |
γ = 66.734 (3)° | 0.20 × 0.15 × 0.10 mm |
V = 807.51 (7) Å3 |
Bruker SMART APEXII area-detector diffractometer | 3368 independent reflections |
Radiation source: fine-focus sealed tube | 2306 reflections with I > 2σ(I) |
Graphite monochromator | Rint = 0.030 |
ω and φ scans | θmax = 26.6°, θmin = 1.3° |
Absorption correction: multi-scan (SADABS; Bruker, 2008) | h = −9→9 |
Tmin = 0.981, Tmax = 0.990 | k = −9→9 |
11476 measured reflections | l = −20→20 |
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)] = 0.042 | Hydrogen site location: inferred from neighbouring sites |
wR(F2) = 0.134 | H-atom parameters constrained |
S = 1.05 | w = 1/[σ2(Fo2) + (0.0629P)2 + 0.1875P] where P = (Fo2 + 2Fc2)/3 |
3368 reflections | (Δ/σ)max = 0.001 |
227 parameters | Δρmax = 0.16 e Å−3 |
0 restraints | Δρmin = −0.22 e Å−3 |
C20H15FN2O2 | γ = 66.734 (3)° |
Mr = 334.34 | V = 807.51 (7) Å3 |
Triclinic, P1 | Z = 2 |
a = 7.4236 (4) Å | Mo Kα radiation |
b = 7.5062 (4) Å | µ = 0.10 mm−1 |
c = 16.3519 (8) Å | T = 293 K |
α = 77.092 (3)° | 0.20 × 0.15 × 0.10 mm |
β = 77.494 (3)° |
Bruker SMART APEXII area-detector diffractometer | 3368 independent reflections |
Absorption correction: multi-scan (SADABS; Bruker, 2008) | 2306 reflections with I > 2σ(I) |
Tmin = 0.981, Tmax = 0.990 | Rint = 0.030 |
11476 measured reflections |
R[F2 > 2σ(F2)] = 0.042 | 0 restraints |
wR(F2) = 0.134 | H-atom parameters constrained |
S = 1.05 | Δρmax = 0.16 e Å−3 |
3368 reflections | Δρmin = −0.22 e Å−3 |
227 parameters |
Geometry. All esds (except the esd in the dihedral angle between two l.s. planes) are estimated using the full covariance matrix. The cell esds are taken into account individually in the estimation of esds in distances, angles and torsion angles; correlations between esds in cell parameters are only used when they are defined by crystal symmetry. An approximate (isotropic) treatment of cell esds is used for estimating esds 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 > 2sigma(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 | ||
C1 | 0.2815 (2) | 0.9674 (2) | 0.27299 (10) | 0.0380 (4) | |
C2 | 0.0947 (3) | 1.0312 (3) | 0.24700 (11) | 0.0458 (4) | |
H2 | −0.0126 | 1.0179 | 0.2860 | 0.055* | |
C3 | 0.0698 (3) | 1.1126 (3) | 0.16502 (12) | 0.0559 (5) | |
H3 | −0.0549 | 1.1560 | 0.1486 | 0.067* | |
C4 | 0.2302 (3) | 1.1315 (3) | 0.10517 (12) | 0.0585 (5) | |
H4 | 0.2119 | 1.1853 | 0.0492 | 0.070* | |
C5 | 0.4113 (3) | 1.0721 (3) | 0.12833 (11) | 0.0542 (5) | |
H5 | 0.5162 | 1.0865 | 0.0881 | 0.065* | |
C6 | 0.4443 (3) | 0.9883 (3) | 0.21265 (11) | 0.0443 (4) | |
C7 | 0.6314 (3) | 0.9262 (3) | 0.23862 (12) | 0.0550 (5) | |
H7 | 0.7384 | 0.9387 | 0.1993 | 0.066* | |
C8 | 0.6573 (3) | 0.8484 (3) | 0.32022 (13) | 0.0572 (5) | |
H8 | 0.7817 | 0.8093 | 0.3363 | 0.069* | |
C9 | 0.4991 (3) | 0.8257 (3) | 0.38106 (11) | 0.0486 (4) | |
H9 | 0.5184 | 0.7738 | 0.4371 | 0.058* | |
C10 | 0.3179 (2) | 0.8801 (2) | 0.35759 (10) | 0.0400 (4) | |
C11 | 0.1845 (3) | 0.7566 (3) | 0.49454 (10) | 0.0460 (4) | |
H11A | 0.2094 | 0.8342 | 0.5279 | 0.055* | |
H11B | 0.2968 | 0.6338 | 0.4921 | 0.055* | |
C12 | 0.0001 (3) | 0.7192 (2) | 0.53259 (10) | 0.0427 (4) | |
C13 | −0.1993 (3) | 0.6253 (2) | 0.62939 (11) | 0.0430 (4) | |
C14 | −0.2765 (3) | 0.5508 (2) | 0.71406 (11) | 0.0444 (4) | |
C15 | −0.4706 (3) | 0.5567 (3) | 0.72898 (13) | 0.0577 (5) | |
H15 | −0.5487 | 0.6074 | 0.6857 | 0.069* | |
C16 | −0.5456 (3) | 0.4863 (3) | 0.80897 (15) | 0.0678 (6) | |
H16 | −0.6747 | 0.4885 | 0.8203 | 0.081* | |
C17 | −0.4279 (4) | 0.4138 (3) | 0.87090 (13) | 0.0653 (6) | |
C18 | −0.2365 (4) | 0.4046 (3) | 0.85990 (12) | 0.0590 (5) | |
C19 | −0.1633 (3) | 0.4763 (3) | 0.77889 (11) | 0.0505 (5) | |
H19 | −0.0341 | 0.4736 | 0.7683 | 0.061* | |
C20 | −0.1144 (4) | 0.3226 (4) | 0.93077 (13) | 0.0871 (8) | |
H20A | −0.1727 | 0.4033 | 0.9747 | 0.131* | |
H20B | 0.0176 | 0.3204 | 0.9098 | 0.131* | |
H20C | −0.1096 | 0.1915 | 0.9533 | 0.131* | |
F1 | −0.5067 (3) | 0.3450 (2) | 0.94919 (8) | 0.0999 (6) | |
N1 | −0.1472 (2) | 0.7432 (2) | 0.49750 (9) | 0.0555 (4) | |
N2 | −0.2797 (2) | 0.6806 (2) | 0.56191 (9) | 0.0545 (4) | |
O1 | 0.15466 (17) | 0.86032 (18) | 0.41174 (7) | 0.0494 (3) | |
O2 | −0.01882 (18) | 0.64483 (17) | 0.61616 (7) | 0.0440 (3) |
U11 | U22 | U33 | U12 | U13 | U23 | |
C1 | 0.0433 (10) | 0.0364 (8) | 0.0348 (8) | −0.0165 (7) | −0.0051 (7) | −0.0032 (6) |
C2 | 0.0467 (11) | 0.0496 (10) | 0.0438 (10) | −0.0229 (9) | −0.0085 (8) | −0.0004 (8) |
C3 | 0.0602 (13) | 0.0593 (12) | 0.0522 (11) | −0.0256 (10) | −0.0218 (9) | 0.0038 (9) |
C4 | 0.0791 (15) | 0.0614 (12) | 0.0368 (10) | −0.0317 (11) | −0.0148 (9) | 0.0066 (8) |
C5 | 0.0635 (13) | 0.0584 (12) | 0.0397 (10) | −0.0297 (10) | −0.0001 (9) | 0.0012 (8) |
C6 | 0.0482 (11) | 0.0431 (9) | 0.0416 (9) | −0.0203 (8) | −0.0020 (8) | −0.0040 (7) |
C7 | 0.0457 (11) | 0.0655 (12) | 0.0529 (11) | −0.0267 (10) | 0.0010 (8) | −0.0028 (9) |
C8 | 0.0449 (11) | 0.0699 (13) | 0.0590 (12) | −0.0262 (10) | −0.0115 (9) | −0.0007 (10) |
C9 | 0.0493 (11) | 0.0568 (11) | 0.0413 (9) | −0.0225 (9) | −0.0141 (8) | 0.0024 (8) |
C10 | 0.0416 (10) | 0.0428 (9) | 0.0353 (8) | −0.0175 (8) | −0.0043 (7) | −0.0026 (7) |
C11 | 0.0509 (11) | 0.0511 (10) | 0.0330 (9) | −0.0198 (9) | −0.0069 (7) | 0.0028 (7) |
C12 | 0.0540 (11) | 0.0421 (9) | 0.0311 (8) | −0.0189 (8) | −0.0070 (7) | −0.0003 (7) |
C13 | 0.0476 (11) | 0.0390 (9) | 0.0421 (10) | −0.0176 (8) | −0.0045 (8) | −0.0043 (7) |
C14 | 0.0532 (11) | 0.0383 (9) | 0.0402 (9) | −0.0188 (8) | 0.0002 (8) | −0.0055 (7) |
C15 | 0.0552 (12) | 0.0541 (11) | 0.0633 (13) | −0.0235 (10) | −0.0006 (9) | −0.0088 (9) |
C16 | 0.0651 (14) | 0.0620 (13) | 0.0748 (15) | −0.0338 (12) | 0.0202 (12) | −0.0167 (11) |
C17 | 0.0882 (17) | 0.0523 (12) | 0.0489 (12) | −0.0346 (12) | 0.0231 (11) | −0.0099 (9) |
C18 | 0.0824 (16) | 0.0473 (11) | 0.0391 (10) | −0.0205 (11) | 0.0018 (9) | −0.0066 (8) |
C19 | 0.0581 (12) | 0.0486 (10) | 0.0405 (10) | −0.0197 (9) | 0.0009 (8) | −0.0057 (8) |
C20 | 0.123 (2) | 0.0851 (17) | 0.0403 (12) | −0.0314 (16) | −0.0105 (13) | 0.0024 (11) |
F1 | 0.1377 (14) | 0.0909 (10) | 0.0602 (8) | −0.0597 (10) | 0.0404 (8) | −0.0094 (7) |
N1 | 0.0603 (11) | 0.0690 (11) | 0.0386 (8) | −0.0302 (9) | −0.0109 (7) | 0.0055 (7) |
N2 | 0.0563 (10) | 0.0671 (10) | 0.0434 (9) | −0.0298 (9) | −0.0114 (7) | 0.0031 (7) |
O1 | 0.0425 (7) | 0.0639 (8) | 0.0348 (6) | −0.0199 (6) | −0.0047 (5) | 0.0066 (5) |
O2 | 0.0510 (8) | 0.0498 (7) | 0.0314 (6) | −0.0222 (6) | −0.0061 (5) | 0.0010 (5) |
C1—C2 | 1.405 (2) | C11—H11B | 0.9700 |
C1—C6 | 1.422 (2) | C12—N1 | 1.276 (2) |
C1—C10 | 1.426 (2) | C12—O2 | 1.3552 (19) |
C2—C3 | 1.363 (2) | C13—N2 | 1.277 (2) |
C2—H2 | 0.9300 | C13—O2 | 1.371 (2) |
C3—C4 | 1.401 (3) | C13—C14 | 1.456 (2) |
C3—H3 | 0.9300 | C14—C19 | 1.376 (3) |
C4—C5 | 1.349 (3) | C14—C15 | 1.393 (3) |
C4—H4 | 0.9300 | C15—C16 | 1.381 (3) |
C5—C6 | 1.412 (2) | C15—H15 | 0.9300 |
C5—H5 | 0.9300 | C16—C17 | 1.359 (3) |
C6—C7 | 1.408 (3) | C16—H16 | 0.9300 |
C7—C8 | 1.354 (3) | C17—F1 | 1.367 (2) |
C7—H7 | 0.9300 | C17—C18 | 1.368 (3) |
C8—C9 | 1.405 (3) | C18—C19 | 1.393 (3) |
C8—H8 | 0.9300 | C18—C20 | 1.497 (3) |
C9—C10 | 1.357 (2) | C19—H19 | 0.9300 |
C9—H9 | 0.9300 | C20—H20A | 0.9600 |
C10—O1 | 1.376 (2) | C20—H20B | 0.9600 |
C11—O1 | 1.418 (2) | C20—H20C | 0.9600 |
C11—C12 | 1.482 (2) | N1—N2 | 1.412 (2) |
C11—H11A | 0.9700 | ||
C2—C1—C6 | 119.18 (15) | H11A—C11—H11B | 108.7 |
C2—C1—C10 | 123.22 (15) | N1—C12—O2 | 113.17 (16) |
C6—C1—C10 | 117.60 (16) | N1—C12—C11 | 129.27 (15) |
C3—C2—C1 | 120.36 (17) | O2—C12—C11 | 117.55 (15) |
C3—C2—H2 | 119.8 | N2—C13—O2 | 112.28 (15) |
C1—C2—H2 | 119.8 | N2—C13—C14 | 128.39 (17) |
C2—C3—C4 | 120.63 (19) | O2—C13—C14 | 119.32 (15) |
C2—C3—H3 | 119.7 | C19—C14—C15 | 119.73 (17) |
C4—C3—H3 | 119.7 | C19—C14—C13 | 121.76 (17) |
C5—C4—C3 | 120.33 (17) | C15—C14—C13 | 118.51 (18) |
C5—C4—H4 | 119.8 | C16—C15—C14 | 119.1 (2) |
C3—C4—H4 | 119.8 | C16—C15—H15 | 120.4 |
C4—C5—C6 | 121.17 (17) | C14—C15—H15 | 120.4 |
C4—C5—H5 | 119.4 | C17—C16—C15 | 119.0 (2) |
C6—C5—H5 | 119.4 | C17—C16—H16 | 120.5 |
C7—C6—C5 | 122.32 (17) | C15—C16—H16 | 120.5 |
C7—C6—C1 | 119.36 (16) | C16—C17—F1 | 117.4 (2) |
C5—C6—C1 | 118.31 (17) | C16—C17—C18 | 124.44 (19) |
C8—C7—C6 | 120.77 (17) | F1—C17—C18 | 118.2 (2) |
C8—C7—H7 | 119.6 | C17—C18—C19 | 115.8 (2) |
C6—C7—H7 | 119.6 | C17—C18—C20 | 121.8 (2) |
C7—C8—C9 | 121.02 (18) | C19—C18—C20 | 122.3 (2) |
C7—C8—H8 | 119.5 | C14—C19—C18 | 121.9 (2) |
C9—C8—H8 | 119.5 | C14—C19—H19 | 119.0 |
C10—C9—C8 | 119.62 (17) | C18—C19—H19 | 119.0 |
C10—C9—H9 | 120.2 | C18—C20—H20A | 109.5 |
C8—C9—H9 | 120.2 | C18—C20—H20B | 109.5 |
C9—C10—O1 | 124.18 (15) | H20A—C20—H20B | 109.5 |
C9—C10—C1 | 121.59 (16) | C18—C20—H20C | 109.5 |
O1—C10—C1 | 114.23 (14) | H20A—C20—H20C | 109.5 |
O1—C11—C12 | 106.29 (14) | H20B—C20—H20C | 109.5 |
O1—C11—H11A | 110.5 | C12—N1—N2 | 105.94 (14) |
C12—C11—H11A | 110.5 | C13—N2—N1 | 106.37 (15) |
O1—C11—H11B | 110.5 | C10—O1—C11 | 117.26 (13) |
C12—C11—H11B | 110.5 | C12—O2—C13 | 102.25 (13) |
C6—C1—C2—C3 | −0.1 (2) | O2—C13—C14—C15 | 171.45 (15) |
C10—C1—C2—C3 | −179.64 (16) | C19—C14—C15—C16 | −0.3 (3) |
C1—C2—C3—C4 | 0.8 (3) | C13—C14—C15—C16 | 179.90 (16) |
C2—C3—C4—C5 | −1.1 (3) | C14—C15—C16—C17 | 0.2 (3) |
C3—C4—C5—C6 | 0.6 (3) | C15—C16—C17—F1 | −179.84 (17) |
C4—C5—C6—C7 | −179.61 (19) | C15—C16—C17—C18 | −0.1 (3) |
C4—C5—C6—C1 | 0.2 (3) | C16—C17—C18—C19 | 0.2 (3) |
C2—C1—C6—C7 | 179.40 (16) | F1—C17—C18—C19 | 179.88 (16) |
C10—C1—C6—C7 | −1.1 (2) | C16—C17—C18—C20 | −179.9 (2) |
C2—C1—C6—C5 | −0.4 (2) | F1—C17—C18—C20 | −0.2 (3) |
C10—C1—C6—C5 | 179.18 (15) | C15—C14—C19—C18 | 0.3 (3) |
C5—C6—C7—C8 | 179.28 (18) | C13—C14—C19—C18 | −179.86 (16) |
C1—C6—C7—C8 | −0.5 (3) | C17—C18—C19—C14 | −0.3 (3) |
C6—C7—C8—C9 | 0.6 (3) | C20—C18—C19—C14 | 179.80 (18) |
C7—C8—C9—C10 | 0.9 (3) | O2—C12—N1—N2 | 0.0 (2) |
C8—C9—C10—O1 | 178.61 (16) | C11—C12—N1—N2 | 178.53 (17) |
C8—C9—C10—C1 | −2.5 (3) | O2—C13—N2—N1 | −0.2 (2) |
C2—C1—C10—C9 | −177.89 (17) | C14—C13—N2—N1 | 178.90 (16) |
C6—C1—C10—C9 | 2.6 (2) | C12—N1—N2—C13 | 0.1 (2) |
C2—C1—C10—O1 | 1.1 (2) | C9—C10—O1—C11 | −7.4 (2) |
C6—C1—C10—O1 | −178.44 (14) | C1—C10—O1—C11 | 173.68 (14) |
O1—C11—C12—N1 | 10.3 (3) | C12—C11—O1—C10 | −168.05 (14) |
O1—C11—C12—O2 | −171.25 (13) | N1—C12—O2—C13 | −0.12 (19) |
N2—C13—C14—C19 | 172.65 (18) | C11—C12—O2—C13 | −178.81 (14) |
O2—C13—C14—C19 | −8.3 (2) | N2—C13—O2—C12 | 0.17 (18) |
N2—C13—C14—C15 | −7.5 (3) | C14—C13—O2—C12 | −178.98 (14) |
D—H···A | D—H | H···A | D···A | D—H···A |
C9—H9···N2i | 0.93 | 2.60 | 3.447 (2) | 152 |
Symmetry code: (i) x+1, y, z. |
D—H···A | D—H | H···A | D···A | D—H···A |
C9—H9···N2i | 0.93 | 2.60 | 3.447 (2) | 152 |
Symmetry code: (i) x+1, y, z. |
Acknowledgements
MG is thankful to the management of Orchid Chemicals & Pharmaceuticals Ltd for their support. The authors thank the TBI X-ray facility, CAS in Crystallography and Biophysics, University of Madras, India, for the data collection.
References
Bethge, K., Pertz, H. H. & Rehse, K. (2005). Arch. Pharm. Chem. Life Sci. 338, 78–86. Web of Science CrossRef CAS Google Scholar
Bruker (2008). APEX2, SAINT and SADABS. Bruker AXS Inc., Madison, Wisconsin, USA. Google Scholar
Desai, N. C., Dodiya, A. M., Rajpara, K. M. & Rupala, Y. M. (2014). J. Saudi Chem. Soc. 18, 255–261. Web of Science CrossRef Google Scholar
Farrugia, L. J. (2012). J. Appl. Cryst. 45, 849–854. Web of Science CrossRef CAS IUCr Journals Google Scholar
Khalilullah, H., Ahsan, M. J., Hedaitullah, M., Khan, S. & Ahmed, B. (2012). Mini Rev. Med. Chem. 12, 789–801. CrossRef CAS PubMed Google Scholar
Saha, R., Tanwar, O., Marella, A., Alam, M. M. & Akhter, M. (2013). Mini Rev. Med. Chem. 13, 1027–1046. CrossRef CAS PubMed Google Scholar
Shailaja, M., Anitha, M., Manujla, A. & Vittal, R. B. (2010). Indian J. Chem. Sect. B, 49, 1088–1097. Google Scholar
Sheldrick, G. M. (2008). Acta Cryst. A64, 112–122. Web of Science CrossRef CAS IUCr Journals Google Scholar
Spek, A. L. (2009). Acta Cryst. D65, 148–155. Web of Science CrossRef CAS IUCr Journals Google Scholar
Sun, J., Makawana, J. A. & Zhu, H. L. (2013). Mini Rev. Med. Chem. 13, 1725–1743. CrossRef CAS PubMed Google Scholar
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1,3,4-Oxadiazole derivatives as typical heterocyclic compounds, exhibit a broad spectrum of biological activities and have polymer and material sciences application (Shailaja et al., 2010) and are vital leading compounds for the development of drugs (Sun et al., 2013). The presence of the oxadiazole motif in diverse types of compounds proves its importance in the field of medicinal chemistry (Saha et al., 2013).
1,3,4-oxadiazole including anti-inflammatory, analgesic, anti-HIV, antimycobacterial, cathepsin K inhibitors, tyrosinase inhibitors, monoamine oxidase (MAO) inhibitors (Desai et al., 2014), anticonvulsant, anticancer, antifungal, tuberculostatic (Khalilullah et al., 2012), analgesic, antiplatelet and antithrombotic activities (Bethge et al., 2005). Moreover the amino compounds are very commonly used as antimicrobial and germicidal drug.
The molecular structure of the title compound is shown in Fig. 1. The oxadiazole, naphthalene and flurophenyl rings adopt an almost planer conformation. The oxadiazole ring (C12/N1/N2/C13/O2) makes dihedral angles of 13.90 (1) ° and 7.93 (1) ° with naphthalene (C1-C10) and benzene ring (C14-C19/F1). The naphthalene ring makes a dihedral angle of 6.35 (1) ° with the benzene ring. The fluorine atom F1 and the methyl group C20 atom lie in the plane of the benzene ring to which they are attached [deviations from the benzene ring plane are 0.004 (1) and 0.003 (3) Å, respectively].
In the crystal, adjacent molecules are linked via C-H···N hydrogen bonds forming chains propagating along [100]; see Table 1 and Fig. 2. The chains are linked by π-π interactions, forming ribbons lying parallel to (011) [Cg1··· Cg1i = 3.5754 (9) Å; inter-planar distance = 3.2669 (6) Å, slippage = 1.453 Å; Cg2···Cg4i = 3.7191 (12) Å; Cg1, Cg2 and Cg4 are the centroids of rings O2/N1/N2/C12/C13, C1-C6 and C14-C19, respectively; symmetry code: (i) -x, -y+1, -z+1].