organic compounds
H-1,2,3-triazol-4-yl]methoxy}naphthalene-1,4-dione
of 2-{[1-(4-bromobenzyl)-1aDepartment of Physics, Presidency College (Autonomous), Chennai 600 005, India, and bOrganic Chemistry Division, CSIR Central Leather Research Institute, Chennai 600 020, India
*Correspondence e-mail: aspandian59@gmail.com
In the title compound, C20H14BrN3O3, the benzene ring makes dihedral angles of 71.30 (11) and 68.95 (14)° with the naphthalene ring system and the triazole ring, respectively. The latter two ring systems are coplanar, with a dihedral angle of 2.92 (12)°. The O atoms deviate from the naphthalene ring system by 0.029 (2) and −0.051 (2) Å. In the crystal, molecules are linked by C—H⋯O and C—H⋯N hydrogen bonds, forming ribbons parallel to (10-1). The ribbons are linked via C—H⋯O and π–π stacking interactions [centroid–centroid distance = 3.4451 (14) Å], forming slabs parallel to the bc plane.
Keywords: crystal structure; triazole; naphthalene; hydrogen bonds.
CCDC reference: 1052111
1. Related literature
For some general background and examples of the pharmacological and biological activity of triazole and its derivatives, see, for example: Abu-Orabi et al. (1989); Demirbaş et al. (2002); Kritsanida et al. (2002). For the biological activity of naphthalene compounds, see, for example: Upadhayaya et al. (2010); Rokade & Sayyed (2009).
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: PLATON (Spek, 2009); software used to prepare material for publication: SHELXL97 and PLATON.
Supporting information
CCDC reference: 1052111
10.1107/S2056989015004429/su5090sup1.cif
contains datablocks global, I. DOI:Structure factors: contains datablock I. DOI: 10.1107/S2056989015004429/su5090Isup2.hkl
Supporting information file. DOI: 10.1107/S2056989015004429/su5090Isup3.cml
The triazole appended lawsone was synthesized in a two step procedure. To a solution of lawsone (0.87 g, 5 mmol) in DMF (20 ml) was added potassium carbonate (1.04 g, 7.5 mmol) and the solution was stirred at room temperature. Propargyl bromide (0.7 mL, 7.5 mmol) was added drop wise and the resulting mixture was allowed to stir overnight. After completion of the reaction, in the mixture was partitioned between DCM and water, and the DCM layer was collected. The aqueous layer was extracted three times with DCM. The combined organic extracts were dried over anhydrous Na2SO4, and concentrated under vacuum to obtain the desired propargyllated lawsone that was later converted to a triazole using click chemistry. Propargyllated lawsone (0.636 g, 3 mmol) was dissolved in 1:1 THF / H2O mixture and triethyl amine (0.7 ml, 5 mmol), sodium azide (0.26 g, 4 mmol), 4-bromobenzyl bromide (0.68 mL, 4 mmol) and cuprous iodide (catalytic amount) were added to this solution. The resulting mixture was allowed to stir overnight at room temperature. Upon completion of the reaction, the mixture was filtered, extract with ethyl acetate, concentrated under vacuum and then subjected to
to obtain the desired product. The overall yield was 0.61 g (60%). Colourless block-like crystals were obtained on slow evaporation of the solvent.The C-bound H atoms were positioned geometrically (C–H = 0.93–0.97 Å) and allowed to ride on their parent atoms with Uiso(H) = 1.2Ueq(C).
Triazoles and triazole derivatives play an important role in pharmaceuticals, agrochemicals, dyes, photographic materials, and in corrosion inhibition and have many biological applications (Abu-Orabi et al., 1989; Demirbaş et al., 2002; Kritsanida et al., 2002. Naphthalene derivatives has been identified as new range of potent antimicrobials effective against wide range of human pathogens and have diverse and interesting antibiotic properties with minimum toxicity (Rokade & Sayyed, 2009; Upadhayaya et al. 2010).
The molecular structure of the title compound is shown in Fig. 1. The benzene ring (C15-C20) makes dihedral angles of 71.30 (11) and 68.95 (14) ° with the naphthalene ring system and the triazole ring, respectively. The latter two rings are coplanar with a dihedral angle of 2.92 (12) °. Atoms O1 and O2 deviate from the naphthalene ring by 0.029 (2) and -0.051 (2) Å, respectively. Atom Br1 deviates from the benzene ring to which it is attached by -0.028 (1) Å
In the crystal, molecules are linked by C-H···O and C-H···N hydrogen bonds forming ribbons parallel to (101); see Table 1 and Fig. 2. The ribbons are linked by C-H···O hydrogen bonds and π–π stacking interactions [Cg2···Cg3i = 3.4451 (14) Å; Cg2 and Cg3 are the centroids of rings naphthalene rings C1-C5/C10 and C5-C10, respectively; symmetry code: (i) x, -y+1/2, z-1/2], forming slabs parallel to the bc plane (Table 1 and Fig. 3).
For some general background and examples of the pharmacological and biological activity of triazole and its derivatives, see, for example: Abu-Orabi et al. (1989); Demirbaş et al. (2002); Kritsanida et al. (2002). For the biological activity of naphthalene compounds, see, for example: Upadhayaya et al. (2010); Rokade & Sayyed (2009).
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: PLATON (Spek, 2009); software used to prepare material for publication: SHELXL97 (Sheldrick, 2008) and PLATON (Spek, 2009).C20H14BrN3O3 | F(000) = 856 |
Mr = 424.25 | Dx = 1.583 Mg m−3 |
Monoclinic, P21/c | Mo Kα radiation, λ = 0.71073 Å |
Hall symbol: -P 2ybc | Cell parameters from 2887 reflections |
a = 16.4383 (5) Å | θ = 1.2–28.3° |
b = 13.1684 (4) Å | µ = 2.34 mm−1 |
c = 8.2255 (2) Å | T = 293 K |
β = 90.827 (1)° | Block, colourless |
V = 1780.36 (9) Å3 | 0.25 × 0.20 × 0.20 mm |
Z = 4 |
Bruker SMART APEXII CCD diffractometer | 4415 independent reflections |
Radiation source: fine-focus sealed tube | 2887 reflections with I > 2σ(I) |
Graphite monochromator | Rint = 0.031 |
ω and φ scans | θmax = 28.3°, θmin = 1.2° |
Absorption correction: multi-scan (SADABS; Bruker, 2008) | h = −21→20 |
Tmin = 0.593, Tmax = 0.652 | k = −16→17 |
17010 measured reflections | l = −10→10 |
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)] = 0.044 | Hydrogen site location: inferred from neighbouring sites |
wR(F2) = 0.119 | H-atom parameters constrained |
S = 1.01 | w = 1/[σ2(Fo2) + (0.0595P)2 + 0.5827P] where P = (Fo2 + 2Fc2)/3 |
4415 reflections | (Δ/σ)max = 0.003 |
244 parameters | Δρmax = 0.42 e Å−3 |
0 restraints | Δρmin = −0.93 e Å−3 |
C20H14BrN3O3 | V = 1780.36 (9) Å3 |
Mr = 424.25 | Z = 4 |
Monoclinic, P21/c | Mo Kα radiation |
a = 16.4383 (5) Å | µ = 2.34 mm−1 |
b = 13.1684 (4) Å | T = 293 K |
c = 8.2255 (2) Å | 0.25 × 0.20 × 0.20 mm |
β = 90.827 (1)° |
Bruker SMART APEXII CCD diffractometer | 4415 independent reflections |
Absorption correction: multi-scan (SADABS; Bruker, 2008) | 2887 reflections with I > 2σ(I) |
Tmin = 0.593, Tmax = 0.652 | Rint = 0.031 |
17010 measured reflections |
R[F2 > 2σ(F2)] = 0.044 | 0 restraints |
wR(F2) = 0.119 | H-atom parameters constrained |
S = 1.01 | Δρmax = 0.42 e Å−3 |
4415 reflections | Δρmin = −0.93 e Å−3 |
244 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 | ||
C1 | 0.32817 (17) | 0.37072 (18) | −0.0249 (3) | 0.0477 (6) | |
H1 | 0.3479 | 0.4340 | 0.0067 | 0.057* | |
C2 | 0.25884 (18) | 0.3640 (2) | −0.1206 (3) | 0.0541 (7) | |
H2 | 0.2316 | 0.4228 | −0.1523 | 0.065* | |
C3 | 0.22993 (16) | 0.2711 (2) | −0.1692 (3) | 0.0545 (7) | |
H3 | 0.1838 | 0.2673 | −0.2356 | 0.065* | |
C4 | 0.26908 (16) | 0.1828 (2) | −0.1200 (3) | 0.0487 (6) | |
H4 | 0.2488 | 0.1200 | −0.1526 | 0.058* | |
C5 | 0.33842 (14) | 0.18813 (17) | −0.0221 (3) | 0.0387 (5) | |
C6 | 0.37999 (16) | 0.09419 (17) | 0.0346 (3) | 0.0421 (6) | |
C7 | 0.45299 (16) | 0.10389 (17) | 0.1362 (3) | 0.0421 (6) | |
H7 | 0.4800 | 0.0455 | 0.1704 | 0.051* | |
C8 | 0.48218 (15) | 0.19489 (17) | 0.1817 (3) | 0.0389 (5) | |
C9 | 0.44255 (15) | 0.29198 (17) | 0.1280 (3) | 0.0410 (5) | |
C10 | 0.36854 (15) | 0.28351 (16) | 0.0242 (3) | 0.0385 (5) | |
C11 | 0.59314 (15) | 0.12805 (17) | 0.3357 (3) | 0.0447 (6) | |
H11A | 0.6115 | 0.0873 | 0.2450 | 0.054* | |
H11B | 0.5606 | 0.0856 | 0.4060 | 0.054* | |
C12 | 0.66411 (15) | 0.17104 (17) | 0.4275 (3) | 0.0415 (5) | |
C13 | 0.68666 (15) | 0.26868 (17) | 0.4532 (3) | 0.0410 (5) | |
H13 | 0.6606 | 0.3271 | 0.4158 | 0.049* | |
C14 | 0.80758 (16) | 0.3445 (2) | 0.6053 (3) | 0.0488 (6) | |
H14A | 0.8309 | 0.3247 | 0.7095 | 0.059* | |
H14B | 0.7750 | 0.4050 | 0.6222 | 0.059* | |
C15 | 0.87538 (15) | 0.36917 (18) | 0.4899 (3) | 0.0420 (5) | |
C16 | 0.93614 (18) | 0.2990 (2) | 0.4612 (4) | 0.0565 (7) | |
H16 | 0.9345 | 0.2359 | 0.5116 | 0.068* | |
C17 | 0.99932 (18) | 0.3220 (2) | 0.3580 (4) | 0.0628 (8) | |
H17 | 1.0402 | 0.2747 | 0.3394 | 0.075* | |
C18 | 1.00118 (16) | 0.4152 (2) | 0.2834 (3) | 0.0506 (6) | |
C19 | 0.94163 (17) | 0.4853 (2) | 0.3095 (3) | 0.0532 (6) | |
H19 | 0.9433 | 0.5482 | 0.2583 | 0.064* | |
C20 | 0.87863 (17) | 0.4614 (2) | 0.4131 (3) | 0.0494 (6) | |
H20 | 0.8378 | 0.5089 | 0.4308 | 0.059* | |
N1 | 0.71901 (16) | 0.11000 (16) | 0.5018 (3) | 0.0625 (7) | |
N2 | 0.77460 (15) | 0.16630 (17) | 0.5737 (3) | 0.0628 (7) | |
N3 | 0.75486 (12) | 0.26276 (15) | 0.5446 (2) | 0.0428 (5) | |
O1 | 0.47077 (12) | 0.37334 (12) | 0.1695 (2) | 0.0578 (5) | |
O2 | 0.35311 (12) | 0.01052 (13) | −0.0017 (2) | 0.0591 (5) | |
O3 | 0.54657 (11) | 0.21317 (12) | 0.2785 (2) | 0.0480 (4) | |
Br1 | 1.08857 (2) | 0.44786 (3) | 0.14393 (4) | 0.07837 (17) |
U11 | U22 | U33 | U12 | U13 | U23 | |
C1 | 0.0497 (16) | 0.0378 (13) | 0.0558 (14) | 0.0009 (12) | 0.0050 (12) | −0.0021 (11) |
C2 | 0.0514 (17) | 0.0522 (16) | 0.0586 (15) | 0.0098 (13) | 0.0028 (13) | 0.0060 (12) |
C3 | 0.0387 (15) | 0.0711 (19) | 0.0536 (14) | 0.0025 (13) | 0.0001 (12) | 0.0037 (13) |
C4 | 0.0466 (15) | 0.0509 (15) | 0.0486 (13) | −0.0089 (12) | 0.0031 (11) | −0.0067 (11) |
C5 | 0.0409 (13) | 0.0379 (12) | 0.0375 (11) | −0.0041 (10) | 0.0084 (9) | −0.0056 (9) |
C6 | 0.0474 (15) | 0.0329 (12) | 0.0461 (12) | −0.0055 (11) | 0.0056 (11) | −0.0087 (10) |
C7 | 0.0456 (15) | 0.0298 (12) | 0.0509 (13) | 0.0017 (10) | −0.0001 (11) | −0.0048 (10) |
C8 | 0.0381 (13) | 0.0330 (12) | 0.0458 (12) | −0.0029 (10) | 0.0040 (10) | −0.0041 (9) |
C9 | 0.0433 (14) | 0.0319 (12) | 0.0479 (12) | −0.0024 (10) | 0.0071 (10) | −0.0026 (10) |
C10 | 0.0407 (13) | 0.0331 (12) | 0.0420 (11) | −0.0008 (10) | 0.0084 (10) | −0.0020 (9) |
C11 | 0.0432 (14) | 0.0306 (12) | 0.0602 (14) | 0.0006 (10) | −0.0015 (11) | −0.0038 (10) |
C12 | 0.0398 (13) | 0.0341 (12) | 0.0508 (13) | −0.0019 (11) | 0.0037 (10) | −0.0003 (10) |
C13 | 0.0390 (13) | 0.0358 (12) | 0.0482 (12) | 0.0036 (10) | −0.0021 (10) | 0.0001 (10) |
C14 | 0.0443 (15) | 0.0543 (15) | 0.0478 (13) | −0.0065 (12) | −0.0041 (11) | −0.0056 (11) |
C15 | 0.0376 (13) | 0.0474 (14) | 0.0406 (11) | −0.0050 (11) | −0.0091 (10) | −0.0040 (10) |
C16 | 0.0542 (17) | 0.0477 (15) | 0.0677 (17) | 0.0023 (13) | 0.0016 (13) | 0.0069 (13) |
C17 | 0.0464 (17) | 0.0701 (19) | 0.0719 (18) | 0.0147 (15) | 0.0026 (14) | −0.0014 (16) |
C18 | 0.0389 (15) | 0.0725 (18) | 0.0403 (12) | −0.0077 (13) | −0.0046 (11) | −0.0019 (12) |
C19 | 0.0519 (17) | 0.0582 (16) | 0.0493 (13) | −0.0001 (14) | −0.0044 (12) | 0.0105 (12) |
C20 | 0.0473 (16) | 0.0517 (15) | 0.0492 (13) | 0.0077 (12) | −0.0039 (12) | 0.0016 (11) |
N1 | 0.0598 (16) | 0.0377 (12) | 0.0895 (17) | −0.0032 (11) | −0.0182 (13) | 0.0130 (12) |
N2 | 0.0595 (15) | 0.0447 (13) | 0.0836 (16) | −0.0032 (12) | −0.0210 (13) | 0.0151 (12) |
N3 | 0.0412 (12) | 0.0389 (11) | 0.0481 (11) | −0.0035 (9) | −0.0021 (9) | 0.0019 (9) |
O1 | 0.0615 (13) | 0.0288 (9) | 0.0826 (13) | −0.0067 (8) | −0.0128 (10) | −0.0080 (8) |
O2 | 0.0655 (13) | 0.0337 (9) | 0.0777 (13) | −0.0108 (9) | −0.0115 (10) | −0.0110 (9) |
O3 | 0.0449 (10) | 0.0330 (9) | 0.0657 (11) | −0.0025 (7) | −0.0115 (8) | −0.0047 (8) |
Br1 | 0.0513 (2) | 0.1308 (4) | 0.05317 (19) | −0.00707 (18) | 0.00537 (14) | 0.01042 (17) |
C1—C2 | 1.379 (4) | C11—H11B | 0.9700 |
C1—C10 | 1.384 (3) | C12—N1 | 1.348 (3) |
C1—H1 | 0.9300 | C12—C13 | 1.354 (3) |
C2—C3 | 1.369 (4) | C13—N3 | 1.343 (3) |
C2—H2 | 0.9300 | C13—H13 | 0.9300 |
C3—C4 | 1.386 (4) | C14—N3 | 1.466 (3) |
C3—H3 | 0.9300 | C14—C15 | 1.509 (3) |
C4—C5 | 1.388 (3) | C14—H14A | 0.9700 |
C4—H4 | 0.9300 | C14—H14B | 0.9700 |
C5—C10 | 1.401 (3) | C15—C20 | 1.371 (3) |
C5—C6 | 1.485 (3) | C15—C16 | 1.383 (4) |
C6—O2 | 1.223 (3) | C16—C17 | 1.384 (4) |
C6—C7 | 1.458 (4) | C16—H16 | 0.9300 |
C7—C8 | 1.342 (3) | C17—C18 | 1.373 (4) |
C7—H7 | 0.9300 | C17—H17 | 0.9300 |
C8—O3 | 1.337 (3) | C18—C19 | 1.364 (4) |
C8—C9 | 1.498 (3) | C18—Br1 | 1.901 (3) |
C9—O1 | 1.215 (3) | C19—C20 | 1.387 (4) |
C9—C10 | 1.480 (3) | C19—H19 | 0.9300 |
C11—O3 | 1.433 (3) | C20—H20 | 0.9300 |
C11—C12 | 1.492 (3) | N1—N2 | 1.311 (3) |
C11—H11A | 0.9700 | N2—N3 | 1.332 (3) |
C2—C1—C10 | 120.2 (2) | N1—C12—C13 | 108.4 (2) |
C2—C1—H1 | 119.9 | N1—C12—C11 | 121.1 (2) |
C10—C1—H1 | 119.9 | C13—C12—C11 | 130.5 (2) |
C3—C2—C1 | 120.3 (3) | N3—C13—C12 | 104.9 (2) |
C3—C2—H2 | 119.8 | N3—C13—H13 | 127.6 |
C1—C2—H2 | 119.8 | C12—C13—H13 | 127.6 |
C2—C3—C4 | 120.4 (3) | N3—C14—C15 | 112.5 (2) |
C2—C3—H3 | 119.8 | N3—C14—H14A | 109.1 |
C4—C3—H3 | 119.8 | C15—C14—H14A | 109.1 |
C3—C4—C5 | 120.1 (2) | N3—C14—H14B | 109.1 |
C3—C4—H4 | 120.0 | C15—C14—H14B | 109.1 |
C5—C4—H4 | 120.0 | H14A—C14—H14B | 107.8 |
C4—C5—C10 | 119.1 (2) | C20—C15—C16 | 118.7 (2) |
C4—C5—C6 | 120.7 (2) | C20—C15—C14 | 120.9 (2) |
C10—C5—C6 | 120.1 (2) | C16—C15—C14 | 120.4 (2) |
O2—C6—C7 | 120.7 (2) | C15—C16—C17 | 120.6 (3) |
O2—C6—C5 | 120.7 (2) | C15—C16—H16 | 119.7 |
C7—C6—C5 | 118.6 (2) | C17—C16—H16 | 119.7 |
C8—C7—C6 | 121.7 (2) | C18—C17—C16 | 119.4 (3) |
C8—C7—H7 | 119.1 | C18—C17—H17 | 120.3 |
C6—C7—H7 | 119.1 | C16—C17—H17 | 120.3 |
O3—C8—C7 | 127.1 (2) | C19—C18—C17 | 120.9 (3) |
O3—C8—C9 | 111.04 (19) | C19—C18—Br1 | 119.5 (2) |
C7—C8—C9 | 121.8 (2) | C17—C18—Br1 | 119.6 (2) |
O1—C9—C10 | 122.4 (2) | C18—C19—C20 | 119.2 (3) |
O1—C9—C8 | 120.5 (2) | C18—C19—H19 | 120.4 |
C10—C9—C8 | 117.12 (19) | C20—C19—H19 | 120.4 |
C1—C10—C5 | 119.9 (2) | C15—C20—C19 | 121.2 (3) |
C1—C10—C9 | 119.5 (2) | C15—C20—H20 | 119.4 |
C5—C10—C9 | 120.6 (2) | C19—C20—H20 | 119.4 |
O3—C11—C12 | 106.23 (18) | N2—N1—C12 | 108.9 (2) |
O3—C11—H11A | 110.5 | N1—N2—N3 | 107.0 (2) |
C12—C11—H11A | 110.5 | N2—N3—C13 | 110.8 (2) |
O3—C11—H11B | 110.5 | N2—N3—C14 | 119.9 (2) |
C12—C11—H11B | 110.5 | C13—N3—C14 | 129.3 (2) |
H11A—C11—H11B | 108.7 | C8—O3—C11 | 117.99 (18) |
C10—C1—C2—C3 | −0.7 (4) | O3—C11—C12—C13 | −2.2 (4) |
C1—C2—C3—C4 | 1.3 (4) | N1—C12—C13—N3 | −0.5 (3) |
C2—C3—C4—C5 | −0.6 (4) | C11—C12—C13—N3 | 179.7 (2) |
C3—C4—C5—C10 | −0.8 (4) | N3—C14—C15—C20 | 114.2 (3) |
C3—C4—C5—C6 | 178.7 (2) | N3—C14—C15—C16 | −66.6 (3) |
C4—C5—C6—O2 | −1.2 (4) | C20—C15—C16—C17 | 0.6 (4) |
C10—C5—C6—O2 | 178.2 (2) | C14—C15—C16—C17 | −178.7 (2) |
C4—C5—C6—C7 | 179.5 (2) | C15—C16—C17—C18 | −0.3 (4) |
C10—C5—C6—C7 | −1.1 (3) | C16—C17—C18—C19 | −0.1 (4) |
O2—C6—C7—C8 | −177.9 (2) | C16—C17—C18—Br1 | 179.2 (2) |
C5—C6—C7—C8 | 1.3 (4) | C17—C18—C19—C20 | 0.1 (4) |
C6—C7—C8—O3 | 177.6 (2) | Br1—C18—C19—C20 | −179.1 (2) |
C6—C7—C8—C9 | −1.3 (4) | C16—C15—C20—C19 | −0.6 (4) |
O3—C8—C9—O1 | 1.8 (3) | C14—C15—C20—C19 | 178.7 (2) |
C7—C8—C9—O1 | −179.2 (2) | C18—C19—C20—C15 | 0.2 (4) |
O3—C8—C9—C10 | −178.0 (2) | C13—C12—N1—N2 | 0.4 (3) |
C7—C8—C9—C10 | 1.0 (3) | C11—C12—N1—N2 | −179.8 (2) |
C2—C1—C10—C5 | −0.6 (4) | C12—N1—N2—N3 | −0.1 (3) |
C2—C1—C10—C9 | −179.5 (2) | N1—N2—N3—C13 | −0.3 (3) |
C4—C5—C10—C1 | 1.4 (3) | N1—N2—N3—C14 | −178.0 (2) |
C6—C5—C10—C1 | −178.1 (2) | C12—C13—N3—N2 | 0.5 (3) |
C4—C5—C10—C9 | −179.8 (2) | C12—C13—N3—C14 | 177.9 (2) |
C6—C5—C10—C9 | 0.8 (3) | C15—C14—N3—N2 | 86.2 (3) |
O1—C9—C10—C1 | −1.7 (4) | C15—C14—N3—C13 | −91.0 (3) |
C8—C9—C10—C1 | 178.1 (2) | C7—C8—O3—C11 | 3.3 (4) |
O1—C9—C10—C5 | 179.4 (2) | C9—C8—O3—C11 | −177.8 (2) |
C8—C9—C10—C5 | −0.8 (3) | C12—C11—O3—C8 | 175.2 (2) |
O3—C11—C12—N1 | 178.0 (2) |
D—H···A | D—H | H···A | D···A | D—H···A |
C1—H1···N1i | 0.93 | 2.57 | 3.251 (3) | 131 |
C13—H13···O2i | 0.93 | 2.53 | 3.277 (3) | 138 |
C11—H11A···O2ii | 0.97 | 2.46 | 3.425 (3) | 175 |
Symmetry codes: (i) −x+1, y+1/2, −z+1/2; (ii) −x+1, −y, −z. |
D—H···A | D—H | H···A | D···A | D—H···A |
C1—H1···N1i | 0.93 | 2.57 | 3.251 (3) | 131 |
C13—H13···O2i | 0.93 | 2.53 | 3.277 (3) | 138 |
C11—H11A···O2ii | 0.97 | 2.46 | 3.425 (3) | 175 |
Symmetry codes: (i) −x+1, y+1/2, −z+1/2; (ii) −x+1, −y, −z. |
Acknowledgements
The authors thank Dr Jagan, Department of Chemistry, IIT, Chennai, India, for the data collection.
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Triazoles and triazole derivatives play an important role in pharmaceuticals, agrochemicals, dyes, photographic materials, and in corrosion inhibition and have many biological applications (Abu-Orabi et al., 1989; Demirbaş et al., 2002; Kritsanida et al., 2002. Naphthalene derivatives has been identified as new range of potent antimicrobials effective against wide range of human pathogens and have diverse and interesting antibiotic properties with minimum toxicity (Rokade & Sayyed, 2009; Upadhayaya et al. 2010).
The molecular structure of the title compound is shown in Fig. 1. The benzene ring (C15-C20) makes dihedral angles of 71.30 (11) and 68.95 (14) ° with the naphthalene ring system and the triazole ring, respectively. The latter two rings are coplanar with a dihedral angle of 2.92 (12) °. Atoms O1 and O2 deviate from the naphthalene ring by 0.029 (2) and -0.051 (2) Å, respectively. Atom Br1 deviates from the benzene ring to which it is attached by -0.028 (1) Å
In the crystal, molecules are linked by C-H···O and C-H···N hydrogen bonds forming ribbons parallel to (101); see Table 1 and Fig. 2. The ribbons are linked by C-H···O hydrogen bonds and π–π stacking interactions [Cg2···Cg3i = 3.4451 (14) Å; Cg2 and Cg3 are the centroids of rings naphthalene rings C1-C5/C10 and C5-C10, respectively; symmetry code: (i) x, -y+1/2, z-1/2], forming slabs parallel to the bc plane (Table 1 and Fig. 3).