organic compounds
1-(10-Bromoanthracen-9-yl)-1H-imidazole
aNational Changhua University of Education, Department of Chemistry, Changhua, 50058, Taiwan
*Correspondence e-mail: leehm@cc.ncue.edu.tw
In the title molecule, C17H11BrN2, the planes of the anthracene ring system [maximum deviation from the mean plane = 0.036 (3) Å] and the imidazole ring form a dihedral angle of 85.14 (14)°. In the crystal, weak C—H⋯N and C—H⋯Br hydrogen bonds link the molecules into double chains propagating along [01-1]. In addition, π–π stacking interactions between pairs of benzene rings are observed, with centroid–centroid distances of 3.7968 (17) and 3.8496 (16) Å.
Related literature
For the preparation of the title compound, see: Lee et al. (2011). For the structure of a related compound, see: Boyer et al. (1993).
Experimental
Crystal data
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Data collection: APEX2 (Bruker, 2007); cell SAINT (Bruker, 2007); data reduction: SAINT; program(s) used to solve structure: SHELXTL (Sheldrick, 2008); program(s) used to refine structure: SHELXTL; molecular graphics: DIAMOND (Brandenburg, 2006); software used to prepare material for publication: SHELXTL.
Supporting information
https://doi.org/10.1107/S160053681300891X/lh5602sup1.cif
contains datablocks I, global. DOI:Structure factors: contains datablock I. DOI: https://doi.org/10.1107/S160053681300891X/lh5602Isup2.hkl
Supporting information file. DOI: https://doi.org/10.1107/S160053681300891X/lh5602Isup3.cml
The compound was isolated as a side-product in the preparation of 9,10-di(1H-imidazol-1-yl)anthracene (dia) (Lee et al., 2011). Suitable crystals were obtained by slow evaporation of a methanol solution of the compound at room temperature.
The hydrogen atom upon C2 was located in a difference Fourier map and freely refined. All the other hydrogen atoms were positioned geometrically and refined as riding atoms, with C—H = 0.95 Å with Uiso(H) = 1.2Ueq(C).
The title compound is a side-product in the preparation of 9,10-di(1H-imidazol-1-yl)anthracene. The latter compound is a ditopic bis(imidazole) ligand which can form intriguing coordination polymers with transition metal ions (Lee et al., et al. 2011). The title compound however, features only one imidazole moiety. 9-(10'-Bromo-9'-anthryl)carbazole is a structure in the literature which is related to the title compound (Boyer et al. 1993).
The molecular structure of the title compound is shown in Fig. 1. The anthracene ring system [maximum deviation from the mean plane = 0.036 (3)Å for C11] and imidazole ring form a dihedral angle of 85.14 (14) Å. In the crystal, weak hydrogen bonds of the type C—H···N and C—H···Br link the molecules into one-dimensional double chains propagating along [0, 1, -1] (Fig. 2). Double chains are further stablized by π–π stacking interaction between pairs of anthracene rings. The contact distances are 3.7968 (17) [Cg1···Cg1(-x, 2 - y, 1 - z)] and 3.8496 (16) Å [Cg1···Cg1(-x, 2 - y, 1 - z)]. Cg1 and Cg2 are the centroids of C12—C17 and C4/C5/C10—C12/C17, respectively.
For the preparation of the title compound, see: Lee et al. (2011). For the structure of a related compound, see: Boyer et al. (1993).
Data collection: APEX2 (Bruker, 2007); cell
SAINT (Bruker, 2007); data reduction: SAINT (Bruker, 2007); program(s) used to solve structure: SHELXTL (Sheldrick, 2008); program(s) used to refine structure: SHELXTL (Sheldrick, 2008); molecular graphics: DIAMOND (Brandenburg, 2006); software used to prepare material for publication: SHELXTL (Sheldrick, 2008).C17H11BrN2 | Z = 2 |
Mr = 323.19 | F(000) = 324 |
Triclinic, P1 | Dx = 1.648 Mg m−3 |
Hall symbol: -P 1 | Mo Kα radiation, λ = 0.71073 Å |
a = 8.1832 (2) Å | Cell parameters from 2906 reflections |
b = 8.8473 (2) Å | θ = 2.4–27.9° |
c = 9.5814 (2) Å | µ = 3.15 mm−1 |
α = 75.355 (1)° | T = 150 K |
β = 81.624 (1)° | Block, colorless |
γ = 77.134 (1)° | 0.35 × 0.26 × 0.07 mm |
V = 651.36 (3) Å3 |
Bruker SMART APEXII diffractometer | 2846 independent reflections |
Radiation source: fine-focus sealed tube | 2562 reflections with I > 2σ |
Graphite monochromator | Rint = 0.017 |
ω scans | θmax = 27.0°, θmin = 2.2° |
Absorption correction: multi-scan (SADABS; Sheldrick, 2003) | h = −10→10 |
Tmin = 0.406, Tmax = 0.822 | k = −6→11 |
6236 measured reflections | l = −12→12 |
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)] = 0.032 | Hydrogen site location: inferred from neighbouring sites |
wR(F2) = 0.100 | H atoms treated by a mixture of independent and constrained refinement |
S = 1.11 | w = 1/[σ2(Fo2) + (0.0608P)2 + 0.4219P] where P = (Fo2 + 2Fc2)/3 |
2846 reflections | (Δ/σ)max < 0.001 |
185 parameters | Δρmax = 0.54 e Å−3 |
0 restraints | Δρmin = −0.28 e Å−3 |
C17H11BrN2 | γ = 77.134 (1)° |
Mr = 323.19 | V = 651.36 (3) Å3 |
Triclinic, P1 | Z = 2 |
a = 8.1832 (2) Å | Mo Kα radiation |
b = 8.8473 (2) Å | µ = 3.15 mm−1 |
c = 9.5814 (2) Å | T = 150 K |
α = 75.355 (1)° | 0.35 × 0.26 × 0.07 mm |
β = 81.624 (1)° |
Bruker SMART APEXII diffractometer | 2846 independent reflections |
Absorption correction: multi-scan (SADABS; Sheldrick, 2003) | 2562 reflections with I > 2σ |
Tmin = 0.406, Tmax = 0.822 | Rint = 0.017 |
6236 measured reflections |
R[F2 > 2σ(F2)] = 0.032 | 0 restraints |
wR(F2) = 0.100 | H atoms treated by a mixture of independent and constrained refinement |
S = 1.11 | Δρmax = 0.54 e Å−3 |
2846 reflections | Δρmin = −0.28 e Å−3 |
185 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 | ||
Br1 | 0.29223 (4) | 1.29770 (3) | 0.32328 (3) | 0.02958 (12) | |
C1 | 0.0666 (4) | 0.7593 (4) | 0.9486 (3) | 0.0298 (6) | |
H1 | −0.0397 | 0.8259 | 0.9291 | 0.036* | |
C2 | 0.0985 (4) | 0.6312 (4) | 1.0596 (3) | 0.0294 (6) | |
C3 | 0.3352 (4) | 0.6527 (3) | 0.9386 (3) | 0.0221 (5) | |
H3 | 0.4520 | 0.6345 | 0.9072 | 0.027* | |
C4 | 0.2461 (3) | 0.8922 (3) | 0.7399 (3) | 0.0185 (5) | |
C5 | 0.2927 (3) | 1.0313 (3) | 0.7525 (3) | 0.0182 (5) | |
C6 | 0.3187 (3) | 1.0569 (3) | 0.8880 (3) | 0.0230 (5) | |
H6 | 0.3047 | 0.9771 | 0.9739 | 0.028* | |
C7 | 0.3633 (4) | 1.1936 (4) | 0.8968 (3) | 0.0288 (6) | |
H7 | 0.3781 | 1.2091 | 0.9883 | 0.035* | |
C8 | 0.3875 (4) | 1.3121 (3) | 0.7700 (4) | 0.0308 (6) | |
H8 | 0.4218 | 1.4055 | 0.7767 | 0.037* | |
C9 | 0.3622 (4) | 1.2942 (3) | 0.6381 (3) | 0.0266 (6) | |
H9 | 0.3776 | 1.3761 | 0.5543 | 0.032* | |
C10 | 0.3129 (3) | 1.1539 (3) | 0.6238 (3) | 0.0192 (5) | |
C11 | 0.2836 (3) | 1.1299 (3) | 0.4912 (3) | 0.0207 (5) | |
C12 | 0.2413 (3) | 0.9892 (3) | 0.4780 (3) | 0.0194 (5) | |
C13 | 0.2162 (4) | 0.9609 (3) | 0.3427 (3) | 0.0269 (6) | |
H13 | 0.2307 | 1.0392 | 0.2559 | 0.032* | |
C14 | 0.1720 (4) | 0.8240 (4) | 0.3366 (3) | 0.0323 (7) | |
H14 | 0.1561 | 0.8076 | 0.2457 | 0.039* | |
C15 | 0.1494 (4) | 0.7059 (3) | 0.4631 (4) | 0.0313 (7) | |
H15 | 0.1166 | 0.6115 | 0.4571 | 0.038* | |
C16 | 0.1741 (3) | 0.7257 (3) | 0.5940 (3) | 0.0241 (6) | |
H16 | 0.1598 | 0.6443 | 0.6784 | 0.029* | |
C17 | 0.2214 (3) | 0.8676 (3) | 0.6065 (3) | 0.0188 (5) | |
H2 | 0.028 (4) | 0.592 (4) | 1.127 (4) | 0.028 (9)* | |
N1 | 0.2190 (3) | 0.7738 (3) | 0.8691 (2) | 0.0197 (4) | |
N2 | 0.2670 (3) | 0.5647 (3) | 1.0537 (3) | 0.0255 (5) |
U11 | U22 | U33 | U12 | U13 | U23 | |
Br1 | 0.03324 (19) | 0.02543 (17) | 0.02217 (17) | −0.00272 (12) | −0.00137 (11) | 0.00551 (11) |
C1 | 0.0215 (14) | 0.0357 (16) | 0.0255 (15) | −0.0028 (12) | −0.0044 (11) | 0.0041 (12) |
C2 | 0.0327 (16) | 0.0333 (15) | 0.0203 (14) | −0.0138 (13) | −0.0029 (12) | 0.0037 (12) |
C3 | 0.0235 (13) | 0.0176 (12) | 0.0214 (13) | 0.0005 (10) | −0.0061 (10) | 0.0005 (10) |
C4 | 0.0173 (12) | 0.0156 (11) | 0.0184 (12) | 0.0014 (9) | −0.0049 (10) | 0.0016 (10) |
C5 | 0.0164 (12) | 0.0174 (12) | 0.0184 (12) | 0.0019 (9) | −0.0045 (9) | −0.0024 (10) |
C6 | 0.0243 (13) | 0.0233 (13) | 0.0193 (13) | −0.0003 (10) | −0.0058 (10) | −0.0025 (10) |
C7 | 0.0279 (15) | 0.0314 (15) | 0.0287 (15) | 0.0010 (12) | −0.0091 (12) | −0.0123 (12) |
C8 | 0.0332 (16) | 0.0218 (13) | 0.0402 (17) | −0.0043 (11) | −0.0097 (13) | −0.0098 (12) |
C9 | 0.0271 (14) | 0.0175 (12) | 0.0323 (15) | −0.0020 (11) | −0.0061 (12) | −0.0006 (11) |
C10 | 0.0181 (12) | 0.0155 (11) | 0.0212 (13) | 0.0003 (9) | −0.0052 (10) | −0.0003 (10) |
C11 | 0.0208 (13) | 0.0172 (12) | 0.0179 (12) | 0.0023 (10) | −0.0032 (10) | 0.0026 (10) |
C12 | 0.0170 (12) | 0.0190 (12) | 0.0179 (12) | 0.0038 (9) | −0.0046 (9) | −0.0014 (10) |
C13 | 0.0279 (14) | 0.0283 (14) | 0.0204 (13) | 0.0046 (11) | −0.0063 (11) | −0.0043 (11) |
C14 | 0.0329 (16) | 0.0378 (16) | 0.0277 (15) | 0.0034 (13) | −0.0093 (12) | −0.0154 (13) |
C15 | 0.0310 (16) | 0.0240 (14) | 0.0417 (18) | 0.0012 (12) | −0.0110 (13) | −0.0141 (13) |
C16 | 0.0225 (13) | 0.0191 (12) | 0.0296 (15) | −0.0009 (10) | −0.0059 (11) | −0.0046 (11) |
C17 | 0.0175 (12) | 0.0156 (11) | 0.0204 (13) | 0.0022 (9) | −0.0050 (10) | −0.0019 (10) |
N1 | 0.0218 (11) | 0.0175 (10) | 0.0170 (10) | −0.0018 (8) | −0.0044 (9) | 0.0012 (8) |
N2 | 0.0345 (13) | 0.0192 (11) | 0.0208 (11) | −0.0053 (9) | −0.0076 (10) | 0.0017 (9) |
Br1—C11 | 1.898 (3) | C7—H7 | 0.9500 |
C1—C2 | 1.350 (4) | C8—C9 | 1.362 (4) |
C1—N1 | 1.377 (4) | C8—H8 | 0.9500 |
C1—H1 | 0.9500 | C9—C10 | 1.431 (4) |
C2—N2 | 1.372 (4) | C9—H9 | 0.9500 |
C2—H2 | 0.86 (4) | C10—C11 | 1.401 (4) |
C3—N2 | 1.309 (4) | C11—C12 | 1.403 (4) |
C3—N1 | 1.366 (3) | C12—C17 | 1.432 (4) |
C3—H3 | 0.9500 | C12—C13 | 1.432 (4) |
C4—C17 | 1.400 (4) | C13—C14 | 1.356 (4) |
C4—C5 | 1.404 (4) | C13—H13 | 0.9500 |
C4—N1 | 1.431 (3) | C14—C15 | 1.405 (5) |
C5—C6 | 1.426 (4) | C14—H14 | 0.9500 |
C5—C10 | 1.438 (4) | C15—C16 | 1.358 (4) |
C6—C7 | 1.364 (4) | C15—H15 | 0.9500 |
C6—H6 | 0.9500 | C16—C17 | 1.430 (4) |
C7—C8 | 1.411 (5) | C16—H16 | 0.9500 |
C2—C1—N1 | 106.2 (3) | C11—C10—C9 | 123.4 (2) |
C2—C1—H1 | 126.9 | C5—C10—C9 | 118.1 (2) |
N1—C1—H1 | 126.9 | C10—C11—C12 | 122.8 (2) |
C1—C2—N2 | 110.7 (3) | C10—C11—Br1 | 118.82 (19) |
C1—C2—H2 | 128 (2) | C12—C11—Br1 | 118.3 (2) |
N2—C2—H2 | 121 (2) | C11—C12—C17 | 118.4 (2) |
N2—C3—N1 | 112.1 (2) | C11—C12—C13 | 123.5 (2) |
N2—C3—H3 | 123.9 | C17—C12—C13 | 118.1 (2) |
N1—C3—H3 | 123.9 | C14—C13—C12 | 121.0 (3) |
C17—C4—C5 | 122.4 (2) | C14—C13—H13 | 119.5 |
C17—C4—N1 | 119.2 (2) | C12—C13—H13 | 119.5 |
C5—C4—N1 | 118.4 (2) | C13—C14—C15 | 120.8 (3) |
C4—C5—C6 | 122.7 (2) | C13—C14—H14 | 119.6 |
C4—C5—C10 | 118.7 (2) | C15—C14—H14 | 119.6 |
C6—C5—C10 | 118.6 (2) | C16—C15—C14 | 120.5 (3) |
C7—C6—C5 | 121.3 (3) | C16—C15—H15 | 119.7 |
C7—C6—H6 | 119.4 | C14—C15—H15 | 119.7 |
C5—C6—H6 | 119.4 | C15—C16—C17 | 120.9 (3) |
C6—C7—C8 | 120.1 (3) | C15—C16—H16 | 119.6 |
C6—C7—H7 | 120.0 | C17—C16—H16 | 119.6 |
C8—C7—H7 | 120.0 | C4—C17—C16 | 122.3 (2) |
C9—C8—C7 | 120.9 (3) | C4—C17—C12 | 119.1 (2) |
C9—C8—H8 | 119.5 | C16—C17—C12 | 118.6 (2) |
C7—C8—H8 | 119.5 | C3—N1—C1 | 105.9 (2) |
C8—C9—C10 | 121.0 (3) | C3—N1—C4 | 128.0 (2) |
C8—C9—H9 | 119.5 | C1—N1—C4 | 126.1 (2) |
C10—C9—H9 | 119.5 | C3—N2—C2 | 105.1 (2) |
C11—C10—C5 | 118.5 (2) | ||
N1—C1—C2—N2 | 0.4 (4) | C17—C12—C13—C14 | 1.2 (4) |
C17—C4—C5—C6 | −179.8 (2) | C12—C13—C14—C15 | 0.0 (4) |
N1—C4—C5—C6 | 1.9 (4) | C13—C14—C15—C16 | −1.0 (5) |
C17—C4—C5—C10 | 1.1 (4) | C14—C15—C16—C17 | 0.8 (4) |
N1—C4—C5—C10 | −177.3 (2) | C5—C4—C17—C16 | 180.0 (2) |
C4—C5—C6—C7 | −179.8 (3) | N1—C4—C17—C16 | −1.7 (4) |
C10—C5—C6—C7 | −0.6 (4) | C5—C4—C17—C12 | −1.1 (4) |
C5—C6—C7—C8 | −1.1 (4) | N1—C4—C17—C12 | 177.2 (2) |
C6—C7—C8—C9 | 1.9 (5) | C15—C16—C17—C4 | 179.4 (3) |
C7—C8—C9—C10 | −0.9 (4) | C15—C16—C17—C12 | 0.4 (4) |
C4—C5—C10—C11 | 0.6 (4) | C11—C12—C17—C4 | −0.5 (4) |
C6—C5—C10—C11 | −178.6 (2) | C13—C12—C17—C4 | 179.7 (2) |
C4—C5—C10—C9 | −179.3 (2) | C11—C12—C17—C16 | 178.5 (2) |
C6—C5—C10—C9 | 1.5 (4) | C13—C12—C17—C16 | −1.3 (4) |
C8—C9—C10—C11 | 179.4 (3) | N2—C3—N1—C1 | 0.3 (3) |
C8—C9—C10—C5 | −0.8 (4) | N2—C3—N1—C4 | −179.4 (2) |
C5—C10—C11—C12 | −2.2 (4) | C2—C1—N1—C3 | −0.4 (3) |
C9—C10—C11—C12 | 177.6 (3) | C2—C1—N1—C4 | 179.2 (3) |
C5—C10—C11—Br1 | 175.01 (18) | C17—C4—N1—C3 | 95.3 (3) |
C9—C10—C11—Br1 | −5.1 (4) | C5—C4—N1—C3 | −86.3 (3) |
C10—C11—C12—C17 | 2.2 (4) | C17—C4—N1—C1 | −84.3 (3) |
Br1—C11—C12—C17 | −175.05 (18) | C5—C4—N1—C1 | 94.1 (3) |
C10—C11—C12—C13 | −178.0 (2) | N1—C3—N2—C2 | 0.0 (3) |
Br1—C11—C12—C13 | 4.8 (4) | C1—C2—N2—C3 | −0.3 (4) |
C11—C12—C13—C14 | −178.7 (3) |
D—H···A | D—H | H···A | D···A | D—H···A |
C3—H3···Br1i | 0.95 | 2.86 | 3.687 (3) | 147 |
C3—H3···N2ii | 0.95 | 2.58 | 3.393 (4) | 144 |
Symmetry codes: (i) −x+1, −y+2, −z+1; (ii) −x+1, −y+1, −z+2. |
Experimental details
Crystal data | |
Chemical formula | C17H11BrN2 |
Mr | 323.19 |
Crystal system, space group | Triclinic, P1 |
Temperature (K) | 150 |
a, b, c (Å) | 8.1832 (2), 8.8473 (2), 9.5814 (2) |
α, β, γ (°) | 75.355 (1), 81.624 (1), 77.134 (1) |
V (Å3) | 651.36 (3) |
Z | 2 |
Radiation type | Mo Kα |
µ (mm−1) | 3.15 |
Crystal size (mm) | 0.35 × 0.26 × 0.07 |
Data collection | |
Diffractometer | Bruker SMART APEXII |
Absorption correction | Multi-scan (SADABS; Sheldrick, 2003) |
Tmin, Tmax | 0.406, 0.822 |
No. of measured, independent and observed (I > 2σ) reflections | 6236, 2846, 2562 |
Rint | 0.017 |
(sin θ/λ)max (Å−1) | 0.639 |
Refinement | |
R[F2 > 2σ(F2)], wR(F2), S | 0.032, 0.100, 1.11 |
No. of reflections | 2846 |
No. of parameters | 185 |
H-atom treatment | H atoms treated by a mixture of independent and constrained refinement |
Δρmax, Δρmin (e Å−3) | 0.54, −0.28 |
Computer programs: APEX2 (Bruker, 2007), SAINT (Bruker, 2007), SHELXTL (Sheldrick, 2008), DIAMOND (Brandenburg, 2006).
D—H···A | D—H | H···A | D···A | D—H···A |
C3—H3···Br1i | 0.95 | 2.86 | 3.687 (3) | 146.7 |
C3—H3···N2ii | 0.95 | 2.58 | 3.393 (4) | 144.0 |
Symmetry codes: (i) −x+1, −y+2, −z+1; (ii) −x+1, −y+1, −z+2. |
Acknowledgements
We thank the National Science Council of Taiwan for financial support of this work.
References
Boyer, G., Claramunt, R. M., Elguero, J., Fathalla, M., Foces-Foces, C., Jaime, C. & LIamas-Saiz, A. L. (1993). J. Chem. Soc. Perkin Trans. 2, pp. 757–766. CrossRef Google Scholar
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The title compound is a side-product in the preparation of 9,10-di(1H-imidazol-1-yl)anthracene. The latter compound is a ditopic bis(imidazole) ligand which can form intriguing coordination polymers with transition metal ions (Lee et al., et al. 2011). The title compound however, features only one imidazole moiety. 9-(10'-Bromo-9'-anthryl)carbazole is a structure in the literature which is related to the title compound (Boyer et al. 1993).
The molecular structure of the title compound is shown in Fig. 1. The anthracene ring system [maximum deviation from the mean plane = 0.036 (3)Å for C11] and imidazole ring form a dihedral angle of 85.14 (14) Å. In the crystal, weak hydrogen bonds of the type C—H···N and C—H···Br link the molecules into one-dimensional double chains propagating along [0, 1, -1] (Fig. 2). Double chains are further stablized by π–π stacking interaction between pairs of anthracene rings. The contact distances are 3.7968 (17) [Cg1···Cg1(-x, 2 - y, 1 - z)] and 3.8496 (16) Å [Cg1···Cg1(-x, 2 - y, 1 - z)]. Cg1 and Cg2 are the centroids of C12—C17 and C4/C5/C10—C12/C17, respectively.