organic compounds
1-Benzyloxy-1H-benzotriazole
aDepartment of Physics, Sethupathy Government Arts College, Ramanathapuram 623 502, Tamilnadu, India, bDepartment of Chemistry, Popes College, Sawyerpuram 628 251, Tamilnadu, India, and cInstitut für Organische Chemie, Universität Mainz, Duesbergweg 10–14, 55099 Mainz, Germany
*Correspondence e-mail: b_ravidurai@yahoo.com
In the title compound, C13H11N3O, the dihedral angle between the benzotriazole ring system [maximum deviation = 0.027 (16) Å] and the benzene ring is 10.28 (9)°. The C—C—O—N bond adopts an anti conformation [torsion angle = −177.11 (16)°]. In the crystal, the molecules interact via weak C—H⋯π interactions and aromatic π–π stacking [centroid-to-centroid distance = 3.731 (12) Å].
Related literature
For a related structure and background to benzotriazoles, see: Selvarathy Grace et al. (2012).
Experimental
Crystal data
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Refinement
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Data collection: CAD-4 Software (Enraf–Nonius, 1989); cell CAD-4 Software; data reduction: CORINC (Wiehl & Schollmeyer, 1994); 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: PLATON (Spek, 2009).
Supporting information
https://doi.org/10.1107/S1600536812028395/hb6865sup1.cif
contains datablocks global, I. DOI:Structure factors: contains datablock I. DOI: https://doi.org/10.1107/S1600536812028395/hb6865Isup2.hkl
Supporting information file. DOI: https://doi.org/10.1107/S1600536812028395/hb6865Isup3.cml
A mixture of sodium salt of 1-hydroxy benzotriazole (0.157 g, 1 mmol) and benzyl chloride (0.126 g, 1 mmol) in ethanol and water (10 ml), were heated at 333 K with stirring for 6 h. The mixture was kept aside for slow evaporation. After a week, colourless blocks were obtained.
H atoms were positioned geometrically [C—H = 0.95 (aromatic) or 0.99 Å (methylene)] and refined using a riding model, with Uiso(H) = 1.2Ueq(C).
As part of our ongoing studies of benzotriazole derivatives with possible biological activities (Selvarathy Grace et al., 2012) we now report the
of the title compound (I).The benzotriazole ring is essentially planar with the maximum deviation from planarity being 0.027 (16) Å for atom N2. The mean plane of the benzotriazole ring (N1–N3/C4–C9 forms a dihedral angle of 10.28 (9)° with the mean plane of the phenyl ring (C12–C17).
The crystal packing features π–π stacking interactions with the centroid-centroid distance of 3.731 (12) Å [symmetry code: 1 - x, -y, 1 - z], together with weak C—H···π interactions. Molecules are stacked along the b axis (Fig 2).
For a related structure and background to benzotriazoles, see: Selvarathy Grace et al. (2012).
Data collection: CAD-4 Software (Enraf–Nonius, 1989); cell
CAD-4 Software (Enraf–Nonius, 1989); data reduction: CORINC (Wiehl & Schollmeyer, 1994); 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: PLATON (Spek, 2009).Fig. 1. The asymmetric unit of the title compound, showing displacement ellipsoids drawn at the 50% probability level. | |
Fig. 2. The crystal packing of the title compound, viewed along the c axis. |
C13H11N3O | F(000) = 944 |
Mr = 225.25 | Dx = 1.337 Mg m−3 |
Orthorhombic, Pbca | Cu Kα radiation, λ = 1.54178 Å |
Hall symbol: -P 2ac 2ab | Cell parameters from 25 reflections |
a = 11.2417 (5) Å | θ = 60–70° |
b = 7.8381 (8) Å | µ = 0.72 mm−1 |
c = 25.3933 (18) Å | T = 193 K |
V = 2237.5 (3) Å3 | Block, colourless |
Z = 8 | 0.51 × 0.45 × 0.13 mm |
Enraf–Nonius CAD-4 diffractometer | 1867 reflections with I > 2σ(I) |
Radiation source: rotating anode | Rint = 0.000 |
Graphite monochromator | θmax = 70.0°, θmin = 3.5° |
ω/2θ scans | h = 0→13 |
Absorption correction: ψ scan (CORINC; Wiehl & Schollmeyer, 1994) | k = −9→0 |
Tmin = 0.84, Tmax = 0.99 | l = 0→30 |
2125 measured reflections | 3 standard reflections every 60 min |
2125 independent reflections | intensity decay: 3% |
Refinement on F2 | Secondary atom site location: difference Fourier map |
Least-squares matrix: full | Hydrogen site location: inferred from neighbouring sites |
R[F2 > 2σ(F2)] = 0.054 | H-atom parameters constrained |
wR(F2) = 0.163 | w = 1/[σ2(Fo2) + (0.0919P)2 + 0.968P] where P = (Fo2 + 2Fc2)/3 |
S = 1.12 | (Δ/σ)max < 0.001 |
2125 reflections | Δρmax = 0.26 e Å−3 |
155 parameters | Δρmin = −0.23 e Å−3 |
0 restraints | Extinction correction: SHELXL97 (Sheldrick, 2008), Fc*=kFc[1+0.001xFc2λ3/sin(2θ)]-1/4 |
Primary atom site location: structure-invariant direct methods | Extinction coefficient: 0.0022 (5) |
C13H11N3O | V = 2237.5 (3) Å3 |
Mr = 225.25 | Z = 8 |
Orthorhombic, Pbca | Cu Kα radiation |
a = 11.2417 (5) Å | µ = 0.72 mm−1 |
b = 7.8381 (8) Å | T = 193 K |
c = 25.3933 (18) Å | 0.51 × 0.45 × 0.13 mm |
Enraf–Nonius CAD-4 diffractometer | 1867 reflections with I > 2σ(I) |
Absorption correction: ψ scan (CORINC; Wiehl & Schollmeyer, 1994) | Rint = 0.000 |
Tmin = 0.84, Tmax = 0.99 | 3 standard reflections every 60 min |
2125 measured reflections | intensity decay: 3% |
2125 independent reflections |
R[F2 > 2σ(F2)] = 0.054 | 0 restraints |
wR(F2) = 0.163 | H-atom parameters constrained |
S = 1.12 | Δρmax = 0.26 e Å−3 |
2125 reflections | Δρmin = −0.23 e Å−3 |
155 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 | ||
N1 | 0.59619 (14) | 0.1616 (2) | 0.41567 (6) | 0.0319 (4) | |
N2 | 0.69169 (16) | 0.0710 (2) | 0.40089 (7) | 0.0386 (5) | |
N3 | 0.74822 (17) | 0.0253 (3) | 0.44366 (6) | 0.0390 (5) | |
C4 | 0.68515 (16) | 0.0849 (3) | 0.48621 (7) | 0.0300 (4) | |
C5 | 0.70541 (19) | 0.0634 (3) | 0.54041 (8) | 0.0363 (5) | |
H5 | 0.7724 | 0.0020 | 0.5531 | 0.044* | |
C6 | 0.6242 (2) | 0.1348 (3) | 0.57406 (8) | 0.0395 (5) | |
H6 | 0.6348 | 0.1216 | 0.6110 | 0.047* | |
C7 | 0.5253 (2) | 0.2276 (3) | 0.55539 (8) | 0.0390 (5) | |
H7 | 0.4719 | 0.2767 | 0.5802 | 0.047* | |
C8 | 0.50350 (18) | 0.2493 (3) | 0.50265 (9) | 0.0342 (5) | |
H8 | 0.4366 | 0.3111 | 0.4900 | 0.041* | |
C9 | 0.58618 (17) | 0.1744 (2) | 0.46878 (7) | 0.0285 (4) | |
O10 | 0.51465 (12) | 0.21382 (19) | 0.37887 (5) | 0.0364 (4) | |
C11 | 0.56357 (18) | 0.3549 (3) | 0.34807 (8) | 0.0373 (5) | |
H11A | 0.6347 | 0.3171 | 0.3283 | 0.045* | |
H11B | 0.5867 | 0.4503 | 0.3715 | 0.045* | |
C12 | 0.46776 (17) | 0.4101 (3) | 0.31104 (7) | 0.0296 (5) | |
C13 | 0.47315 (18) | 0.3682 (3) | 0.25810 (8) | 0.0352 (5) | |
H13 | 0.5377 | 0.3018 | 0.2453 | 0.042* | |
C14 | 0.3853 (2) | 0.4220 (3) | 0.22357 (8) | 0.0400 (5) | |
H14 | 0.3901 | 0.3931 | 0.1873 | 0.048* | |
C15 | 0.29088 (19) | 0.5177 (3) | 0.24185 (9) | 0.0398 (5) | |
H15 | 0.2310 | 0.5551 | 0.2181 | 0.048* | |
C16 | 0.28349 (19) | 0.5589 (3) | 0.29457 (9) | 0.0403 (5) | |
H16 | 0.2177 | 0.6229 | 0.3073 | 0.048* | |
C17 | 0.37194 (18) | 0.5069 (3) | 0.32891 (8) | 0.0357 (5) | |
H17 | 0.3673 | 0.5374 | 0.3651 | 0.043* |
U11 | U22 | U33 | U12 | U13 | U23 | |
N1 | 0.0274 (8) | 0.0424 (9) | 0.0260 (8) | 0.0042 (7) | −0.0039 (6) | 0.0034 (7) |
N2 | 0.0322 (9) | 0.0523 (11) | 0.0314 (9) | 0.0075 (8) | 0.0002 (7) | −0.0007 (8) |
N3 | 0.0316 (9) | 0.0526 (11) | 0.0330 (9) | 0.0102 (8) | −0.0019 (7) | 0.0024 (8) |
C4 | 0.0233 (9) | 0.0355 (10) | 0.0311 (10) | −0.0005 (8) | −0.0026 (7) | 0.0002 (8) |
C5 | 0.0341 (10) | 0.0432 (11) | 0.0315 (10) | −0.0023 (9) | −0.0080 (8) | 0.0044 (8) |
C6 | 0.0417 (12) | 0.0485 (12) | 0.0284 (10) | −0.0087 (10) | −0.0031 (9) | −0.0010 (9) |
C7 | 0.0376 (11) | 0.0432 (12) | 0.0361 (11) | −0.0059 (9) | 0.0075 (9) | −0.0062 (9) |
C8 | 0.0263 (9) | 0.0357 (10) | 0.0406 (10) | −0.0003 (8) | 0.0011 (8) | 0.0017 (8) |
C9 | 0.0256 (9) | 0.0327 (9) | 0.0273 (9) | −0.0029 (8) | −0.0028 (7) | 0.0015 (7) |
O10 | 0.0279 (7) | 0.0507 (9) | 0.0307 (7) | −0.0054 (6) | −0.0097 (5) | 0.0121 (6) |
C11 | 0.0307 (10) | 0.0430 (11) | 0.0383 (11) | −0.0080 (9) | −0.0074 (8) | 0.0124 (9) |
C12 | 0.0260 (9) | 0.0330 (10) | 0.0299 (9) | −0.0056 (8) | −0.0038 (7) | 0.0051 (7) |
C13 | 0.0326 (11) | 0.0393 (11) | 0.0337 (11) | 0.0015 (8) | 0.0022 (8) | 0.0015 (8) |
C14 | 0.0492 (13) | 0.0426 (11) | 0.0283 (10) | −0.0043 (10) | −0.0074 (9) | 0.0020 (8) |
C15 | 0.0340 (11) | 0.0382 (11) | 0.0473 (13) | −0.0052 (9) | −0.0175 (9) | 0.0095 (9) |
C16 | 0.0278 (10) | 0.0401 (11) | 0.0530 (13) | 0.0023 (9) | 0.0001 (9) | 0.0029 (10) |
C17 | 0.0345 (11) | 0.0409 (11) | 0.0317 (10) | −0.0044 (9) | 0.0018 (8) | 0.0012 (8) |
N1—N2 | 1.341 (2) | O10—C11 | 1.462 (2) |
N1—C9 | 1.357 (2) | C11—C12 | 1.494 (3) |
N1—O10 | 1.3714 (19) | C11—H11A | 0.9900 |
N2—N3 | 1.308 (2) | C11—H11B | 0.9900 |
N3—C4 | 1.374 (3) | C12—C13 | 1.385 (3) |
C4—C9 | 1.388 (3) | C12—C17 | 1.393 (3) |
C4—C5 | 1.405 (3) | C13—C14 | 1.386 (3) |
C5—C6 | 1.370 (3) | C13—H13 | 0.9500 |
C5—H5 | 0.9500 | C14—C15 | 1.380 (3) |
C6—C7 | 1.411 (3) | C14—H14 | 0.9500 |
C6—H6 | 0.9500 | C15—C16 | 1.380 (3) |
C7—C8 | 1.372 (3) | C15—H15 | 0.9500 |
C7—H7 | 0.9500 | C16—C17 | 1.384 (3) |
C8—C9 | 1.396 (3) | C16—H16 | 0.9500 |
C8—H8 | 0.9500 | C17—H17 | 0.9500 |
N2—N1—C9 | 112.56 (15) | O10—C11—C12 | 106.54 (15) |
N2—N1—O10 | 120.16 (15) | O10—C11—H11A | 110.4 |
C9—N1—O10 | 126.85 (16) | C12—C11—H11A | 110.4 |
N3—N2—N1 | 107.55 (16) | O10—C11—H11B | 110.4 |
N2—N3—C4 | 108.00 (17) | C12—C11—H11B | 110.4 |
N3—C4—C9 | 109.55 (17) | H11A—C11—H11B | 108.6 |
N3—C4—C5 | 130.21 (19) | C13—C12—C17 | 118.63 (18) |
C9—C4—C5 | 120.21 (18) | C13—C12—C11 | 120.70 (19) |
C6—C5—C4 | 116.99 (19) | C17—C12—C11 | 120.66 (18) |
C6—C5—H5 | 121.5 | C12—C13—C14 | 120.7 (2) |
C4—C5—H5 | 121.5 | C12—C13—H13 | 119.7 |
C5—C6—C7 | 121.75 (19) | C14—C13—H13 | 119.7 |
C5—C6—H6 | 119.1 | C15—C14—C13 | 120.04 (19) |
C7—C6—H6 | 119.1 | C15—C14—H14 | 120.0 |
C8—C7—C6 | 122.2 (2) | C13—C14—H14 | 120.0 |
C8—C7—H7 | 118.9 | C16—C15—C14 | 119.99 (19) |
C6—C7—H7 | 118.9 | C16—C15—H15 | 120.0 |
C7—C8—C9 | 115.53 (19) | C14—C15—H15 | 120.0 |
C7—C8—H8 | 122.2 | C15—C16—C17 | 119.9 (2) |
C9—C8—H8 | 122.2 | C15—C16—H16 | 120.0 |
N1—C9—C4 | 102.31 (16) | C17—C16—H16 | 120.0 |
N1—C9—C8 | 134.33 (18) | C16—C17—C12 | 120.70 (19) |
C4—C9—C8 | 123.35 (18) | C16—C17—H17 | 119.7 |
N1—O10—C11 | 109.80 (14) | C12—C17—H17 | 119.7 |
C9—N1—N2—N3 | −1.4 (2) | C5—C4—C9—C8 | 1.0 (3) |
O10—N1—N2—N3 | −174.41 (17) | C7—C8—C9—N1 | 177.9 (2) |
N1—N2—N3—C4 | 1.5 (2) | C7—C8—C9—C4 | −0.6 (3) |
N2—N3—C4—C9 | −1.2 (2) | N2—N1—O10—C11 | −74.3 (2) |
N2—N3—C4—C5 | 176.8 (2) | C9—N1—O10—C11 | 113.8 (2) |
N3—C4—C5—C6 | −178.2 (2) | N1—O10—C11—C12 | −177.11 (16) |
C9—C4—C5—C6 | −0.3 (3) | O10—C11—C12—C13 | −104.8 (2) |
C4—C5—C6—C7 | −0.7 (3) | O10—C11—C12—C17 | 76.1 (2) |
C5—C6—C7—C8 | 1.1 (3) | C17—C12—C13—C14 | 0.3 (3) |
C6—C7—C8—C9 | −0.4 (3) | C11—C12—C13—C14 | −178.85 (19) |
N2—N1—C9—C4 | 0.7 (2) | C12—C13—C14—C15 | −0.4 (3) |
O10—N1—C9—C4 | 173.08 (18) | C13—C14—C15—C16 | −0.4 (3) |
N2—N1—C9—C8 | −178.1 (2) | C14—C15—C16—C17 | 1.2 (3) |
O10—N1—C9—C8 | −5.7 (4) | C15—C16—C17—C12 | −1.2 (3) |
N3—C4—C9—N1 | 0.3 (2) | C13—C12—C17—C16 | 0.5 (3) |
C5—C4—C9—N1 | −177.93 (19) | C11—C12—C17—C16 | 179.64 (19) |
N3—C4—C9—C8 | 179.28 (19) |
Cg1 is the centroid of the C12–C17 benzene ring. |
D—H···A | D—H | H···A | D···A | D—H···A |
C13—H13···Cg1i | 0.95 | 2.86 | 3.685 (2) | 145 |
C16—H16···Cg1ii | 0.95 | 2.99 | 3.691 (3) | 132 |
Symmetry codes: (i) −x+1, y−1/2, −z+1/2; (ii) −x−1/2, y−1/2, z. |
Experimental details
Crystal data | |
Chemical formula | C13H11N3O |
Mr | 225.25 |
Crystal system, space group | Orthorhombic, Pbca |
Temperature (K) | 193 |
a, b, c (Å) | 11.2417 (5), 7.8381 (8), 25.3933 (18) |
V (Å3) | 2237.5 (3) |
Z | 8 |
Radiation type | Cu Kα |
µ (mm−1) | 0.72 |
Crystal size (mm) | 0.51 × 0.45 × 0.13 |
Data collection | |
Diffractometer | Enraf–Nonius CAD-4 |
Absorption correction | ψ scan (CORINC; Wiehl & Schollmeyer, 1994) |
Tmin, Tmax | 0.84, 0.99 |
No. of measured, independent and observed [I > 2σ(I)] reflections | 2125, 2125, 1867 |
Rint | 0.000 |
(sin θ/λ)max (Å−1) | 0.609 |
Refinement | |
R[F2 > 2σ(F2)], wR(F2), S | 0.054, 0.163, 1.12 |
No. of reflections | 2125 |
No. of parameters | 155 |
H-atom treatment | H-atom parameters constrained |
Δρmax, Δρmin (e Å−3) | 0.26, −0.23 |
Computer programs: CAD-4 Software (Enraf–Nonius, 1989), CORINC (Wiehl & Schollmeyer, 1994), SHELXS97 (Sheldrick, 2008), SHELXL97 (Sheldrick, 2008), SHELXTL (Sheldrick, 2008), PLATON (Spek, 2009).
Cg1 is the centroid of the C12–C17 benzene ring. |
D—H···A | D—H | H···A | D···A | D—H···A |
C13—H13···Cg1i | 0.95 | 2.86 | 3.685 (2) | 145 |
C16—H16···Cg1ii | 0.95 | 2.99 | 3.691 (3) | 132 |
Symmetry codes: (i) −x+1, y−1/2, −z+1/2; (ii) −x−1/2, y−1/2, z. |
References
Enraf–Nonius (1989). CAD-4 Software. Enraf–Nonius, Delft, The Netherlands. Google Scholar
Selvarathy Grace, P., Jebas, S. R., Ravindran Durai Nayagam, B. & Schollmeyer, D. (2012). Acta Cryst. E68, o1132. CSD CrossRef IUCr Journals 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
Wiehl, L. & Schollmeyer, D. (1994). CORINC. University of Mainz, Germany. Google Scholar
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.
As part of our ongoing studies of benzotriazole derivatives with possible biological activities (Selvarathy Grace et al., 2012) we now report the crystal structure of the title compound (I).
The benzotriazole ring is essentially planar with the maximum deviation from planarity being 0.027 (16) Å for atom N2. The mean plane of the benzotriazole ring (N1–N3/C4–C9 forms a dihedral angle of 10.28 (9)° with the mean plane of the phenyl ring (C12–C17).
The crystal packing features π–π stacking interactions with the centroid-centroid distance of 3.731 (12) Å [symmetry code: 1 - x, -y, 1 - z], together with weak C—H···π interactions. Molecules are stacked along the b axis (Fig 2).