organic compounds
2-(1-Adamantyl)-4-bromoanisole at 123 K
aZhejiang Police College Experience Center, Zhejiang Police College, Hangzhou 310053, People's Republic of China
*Correspondence e-mail: zpccxw@126.com
In the title compound [systematic name: 2-(1-adamantyl)-4-bromo-1-methoxybenzene], C17H21BrO, two weak intramolecular C—H⋯O hydrogen bonds influence the molecular conformation. The crystal packing exhibits C—H⋯π interactions, with a relatively short intermolecular C⋯Cg contact of 3.568 (5) Å, where Cg is the centroid of the benzene ring. The crystal studied exhibited inversion twinning.
Related literature
For related crystal structures, see: Nordman & Schmitkons (1965); Amoureux et al. (1980); Amoureux & Bee (1980); Pouwer et al. (2007). For general background, see: Chomienne et al. (1994). For synthesis, see: Antibes et al. (1988).
Experimental
Crystal data
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Data collection: SMART (Bruker, 2002); cell SAINT (Bruker, 2002); data reduction: SAINT; 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: SHELXTL.
Supporting information
10.1107/S1600536808016772/cv2416sup1.cif
contains datablocks global, I. DOI:Structure factors: contains datablock I. DOI: 10.1107/S1600536808016772/cv2416Isup2.hkl
The title compound was prepared according to the literature method (Antibes et al., 1988). Crystals suitable for X-ray analysis were obtained by slow evaporation of an 2-propanol solution at 295 K.
H atoms were positioned geometrically (C—H = 0.95–0.99 Å) and refined using a riding model, with Uiso(H) = 1.2–1.5Ueq(C).
Data collection: SMART (Bruker, 2002); cell
SAINT (Bruker, 2002); data reduction: SAINT (Bruker, 2002); 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: SHELXTL (Sheldrick, 2008).Fig. 1. Molecular structure of the title compound, showing 30% probability displacement ellipsoids and the atomic numbering. |
C17H21BrO | F(000) = 664 |
Mr = 321.25 | Dx = 1.453 Mg m−3 |
Orthorhombic, P212121 | Mo Kα radiation, λ = 0.71073 Å |
Hall symbol: P 2ac 2ab | Cell parameters from 2580 reflections |
a = 7.3815 (11) Å | θ = 2–25.0° |
b = 13.2067 (19) Å | µ = 2.79 mm−1 |
c = 15.067 (2) Å | T = 123 K |
V = 1468.8 (4) Å3 | Block, colourless |
Z = 4 | 0.30 × 0.26 × 0.25 mm |
Bruker SMART CCD area-detector diffractometer | 2580 independent reflections |
Radiation source: fine-focus sealed tube | 2279 reflections with I > 2σ(I) |
Graphite monochromator | Rint = 0.049 |
ϕ and ω scans | θmax = 25.0°, θmin = 2.1° |
Absorption correction: multi-scan (SADABS; Bruker, 2002) | h = −8→8 |
Tmin = 0.438, Tmax = 0.492 | k = −15→14 |
12697 measured reflections | l = −17→17 |
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)] = 0.040 | H-atom parameters constrained |
wR(F2) = 0.106 | w = 1/[σ2(Fo2) + (0.0694P)2 + 1.9231P] where P = (Fo2 + 2Fc2)/3 |
S = 0.86 | (Δ/σ)max < 0.001 |
2580 reflections | Δρmax = 0.51 e Å−3 |
172 parameters | Δρmin = −0.59 e Å−3 |
0 restraints | Absolute structure: Flack (1983), with 1072 Friedel pairs |
Primary atom site location: structure-invariant direct methods | Absolute structure parameter: 0.340 (15) |
C17H21BrO | V = 1468.8 (4) Å3 |
Mr = 321.25 | Z = 4 |
Orthorhombic, P212121 | Mo Kα radiation |
a = 7.3815 (11) Å | µ = 2.79 mm−1 |
b = 13.2067 (19) Å | T = 123 K |
c = 15.067 (2) Å | 0.30 × 0.26 × 0.25 mm |
Bruker SMART CCD area-detector diffractometer | 2580 independent reflections |
Absorption correction: multi-scan (SADABS; Bruker, 2002) | 2279 reflections with I > 2σ(I) |
Tmin = 0.438, Tmax = 0.492 | Rint = 0.049 |
12697 measured reflections |
R[F2 > 2σ(F2)] = 0.040 | H-atom parameters constrained |
wR(F2) = 0.106 | Δρmax = 0.51 e Å−3 |
S = 0.86 | Δρmin = −0.59 e Å−3 |
2580 reflections | Absolute structure: Flack (1983), with 1072 Friedel pairs |
172 parameters | Absolute structure parameter: 0.340 (15) |
0 restraints |
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 | 0.49661 (7) | 0.52137 (3) | 0.02595 (3) | 0.05940 (19) | |
O1 | 0.3914 (4) | 0.9390 (2) | 0.17914 (19) | 0.0495 (7) | |
C8 | 0.1674 (5) | 0.7808 (3) | 0.2493 (2) | 0.0306 (8) | |
C17 | 0.2606 (5) | 0.8175 (3) | 0.3350 (2) | 0.0334 (8) | |
H17A | 0.3496 | 0.7662 | 0.3548 | 0.040* | |
H17B | 0.3269 | 0.8812 | 0.3228 | 0.040* | |
C2 | 0.4172 (5) | 0.8448 (3) | 0.1434 (2) | 0.0363 (9) | |
C11 | −0.2109 (5) | 0.7762 (4) | 0.3180 (3) | 0.0512 (11) | |
H11A | −0.2768 | 0.7516 | 0.2650 | 0.061* | |
H11B | −0.2999 | 0.7871 | 0.3662 | 0.061* | |
C12 | −0.0155 (7) | 0.9143 (3) | 0.3787 (3) | 0.0495 (10) | |
H12A | 0.0472 | 0.9785 | 0.3646 | 0.059* | |
H12B | −0.1034 | 0.9275 | 0.4270 | 0.059* | |
C9 | 0.0205 (6) | 0.8587 (3) | 0.2208 (2) | 0.0403 (9) | |
H9A | 0.0790 | 0.9237 | 0.2052 | 0.048* | |
H9B | −0.0441 | 0.8333 | 0.1677 | 0.048* | |
C7 | 0.3094 (5) | 0.7656 (3) | 0.1763 (2) | 0.0307 (8) | |
C14 | 0.0274 (6) | 0.7365 (3) | 0.4301 (2) | 0.0439 (10) | |
H14A | −0.0610 | 0.7469 | 0.4786 | 0.053* | |
H14B | 0.1175 | 0.6858 | 0.4499 | 0.053* | |
C16 | 0.0668 (5) | 0.6818 (3) | 0.2726 (3) | 0.0374 (9) | |
H16A | 0.0037 | 0.6562 | 0.2191 | 0.045* | |
H16B | 0.1559 | 0.6300 | 0.2913 | 0.045* | |
C6 | 0.3380 (5) | 0.6697 (3) | 0.1394 (2) | 0.0346 (8) | |
H6 | 0.2673 | 0.6141 | 0.1594 | 0.042* | |
C4 | 0.5731 (6) | 0.7319 (4) | 0.0433 (3) | 0.0469 (10) | |
H4 | 0.6633 | 0.7200 | −0.0005 | 0.056* | |
C1 | 0.4924 (7) | 1.0210 (3) | 0.1470 (3) | 0.0544 (10) | |
H1A | 0.4601 | 1.0823 | 0.1800 | 0.082* | |
H1B | 0.4660 | 1.0309 | 0.0839 | 0.082* | |
H1C | 0.6219 | 1.0070 | 0.1547 | 0.082* | |
C3 | 0.5459 (6) | 0.8275 (3) | 0.0770 (3) | 0.0472 (11) | |
H3 | 0.6155 | 0.8825 | 0.0549 | 0.057* | |
C15 | −0.0708 (5) | 0.6981 (3) | 0.3467 (3) | 0.0428 (9) | |
H15 | −0.1328 | 0.6326 | 0.3604 | 0.051* | |
C13 | 0.1216 (5) | 0.8356 (3) | 0.4087 (2) | 0.0380 (9) | |
H13 | 0.1854 | 0.8607 | 0.4629 | 0.046* | |
C10 | −0.1150 (6) | 0.8754 (4) | 0.2966 (3) | 0.0472 (11) | |
H10 | −0.2068 | 0.9267 | 0.2777 | 0.057* | |
C5 | 0.4671 (5) | 0.6541 (3) | 0.0743 (2) | 0.0400 (9) |
U11 | U22 | U33 | U12 | U13 | U23 | |
Br1 | 0.0757 (3) | 0.0442 (3) | 0.0583 (3) | 0.0164 (3) | 0.0146 (3) | −0.00538 (19) |
O1 | 0.0647 (19) | 0.0356 (16) | 0.0483 (16) | −0.0131 (14) | 0.0155 (15) | −0.0039 (14) |
C8 | 0.0306 (19) | 0.030 (2) | 0.0313 (19) | 0.0015 (15) | 0.0001 (14) | 0.0022 (15) |
C17 | 0.0330 (18) | 0.038 (2) | 0.0294 (18) | −0.0019 (16) | −0.0002 (15) | 0.0021 (16) |
C2 | 0.041 (2) | 0.037 (2) | 0.0314 (18) | −0.0044 (18) | 0.0016 (16) | 0.0021 (16) |
C11 | 0.029 (2) | 0.071 (3) | 0.053 (3) | 0.001 (2) | 0.0018 (19) | 0.000 (2) |
C12 | 0.056 (2) | 0.050 (3) | 0.043 (2) | 0.014 (2) | 0.009 (2) | −0.0064 (17) |
C9 | 0.040 (2) | 0.045 (2) | 0.0352 (17) | 0.006 (2) | −0.0033 (17) | 0.0085 (15) |
C7 | 0.0307 (17) | 0.034 (2) | 0.0274 (17) | −0.0012 (15) | −0.0032 (14) | 0.0003 (15) |
C14 | 0.040 (2) | 0.057 (3) | 0.0337 (18) | 0.005 (2) | 0.0062 (17) | 0.0110 (17) |
C16 | 0.036 (2) | 0.034 (2) | 0.043 (2) | −0.0045 (16) | 0.0017 (15) | 0.0047 (18) |
C6 | 0.035 (2) | 0.037 (2) | 0.0327 (18) | −0.0003 (16) | 0.0008 (14) | 0.0045 (16) |
C4 | 0.045 (2) | 0.057 (3) | 0.039 (2) | −0.002 (2) | 0.0116 (17) | −0.0006 (19) |
C1 | 0.056 (2) | 0.040 (2) | 0.068 (3) | −0.010 (3) | 0.000 (2) | 0.0100 (19) |
C3 | 0.050 (3) | 0.051 (3) | 0.040 (2) | −0.013 (2) | 0.0087 (18) | 0.0027 (19) |
C15 | 0.037 (2) | 0.046 (2) | 0.046 (2) | −0.0059 (17) | 0.0053 (17) | 0.0051 (19) |
C13 | 0.040 (2) | 0.046 (2) | 0.0274 (18) | 0.0017 (17) | 0.0017 (16) | −0.0017 (17) |
C10 | 0.036 (2) | 0.060 (3) | 0.046 (2) | 0.018 (2) | −0.0030 (18) | 0.007 (2) |
C5 | 0.045 (2) | 0.040 (2) | 0.0353 (18) | 0.0066 (18) | 0.0013 (17) | −0.0023 (16) |
Br1—C5 | 1.911 (4) | C9—H9B | 0.9900 |
O1—C2 | 1.369 (5) | C7—C6 | 1.399 (5) |
O1—C1 | 1.400 (5) | C14—C13 | 1.516 (6) |
C8—C7 | 1.533 (5) | C14—C15 | 1.536 (6) |
C8—C17 | 1.541 (5) | C14—H14A | 0.9900 |
C8—C16 | 1.544 (5) | C14—H14B | 0.9900 |
C8—C9 | 1.555 (5) | C16—C15 | 1.525 (6) |
C17—C13 | 1.531 (5) | C16—H16A | 0.9900 |
C17—H17A | 0.9900 | C16—H16B | 0.9900 |
C17—H17B | 0.9900 | C6—C5 | 1.383 (5) |
C2—C3 | 1.398 (5) | C6—H6 | 0.9500 |
C2—C7 | 1.405 (5) | C4—C5 | 1.373 (6) |
C11—C10 | 1.523 (7) | C4—C3 | 1.375 (6) |
C11—C15 | 1.524 (6) | C4—H4 | 0.9500 |
C11—H11A | 0.9900 | C1—H1A | 0.9800 |
C11—H11B | 0.9900 | C1—H1B | 0.9800 |
C12—C13 | 1.519 (6) | C1—H1C | 0.9800 |
C12—C10 | 1.528 (6) | C3—H3 | 0.9500 |
C12—H12A | 0.9900 | C15—H15 | 1.0000 |
C12—H12B | 0.9900 | C13—H13 | 1.0000 |
C9—C10 | 1.535 (6) | C10—H10 | 1.0000 |
C9—H9A | 0.9900 | ||
C2—O1—C1 | 119.5 (3) | C15—C16—C8 | 111.5 (3) |
C7—C8—C17 | 109.7 (3) | C15—C16—H16A | 109.3 |
C7—C8—C16 | 112.4 (3) | C8—C16—H16A | 109.3 |
C17—C8—C16 | 106.9 (3) | C15—C16—H16B | 109.3 |
C7—C8—C9 | 111.4 (3) | C8—C16—H16B | 109.3 |
C17—C8—C9 | 109.6 (3) | H16A—C16—H16B | 108.0 |
C16—C8—C9 | 106.7 (3) | C5—C6—C7 | 121.4 (4) |
C13—C17—C8 | 110.9 (3) | C5—C6—H6 | 119.3 |
C13—C17—H17A | 109.4 | C7—C6—H6 | 119.3 |
C8—C17—H17A | 109.4 | C5—C4—C3 | 118.5 (4) |
C13—C17—H17B | 109.4 | C5—C4—H4 | 120.7 |
C8—C17—H17B | 109.4 | C3—C4—H4 | 120.7 |
H17A—C17—H17B | 108.0 | O1—C1—H1A | 109.5 |
O1—C2—C3 | 121.6 (4) | O1—C1—H1B | 109.5 |
O1—C2—C7 | 117.4 (3) | H1A—C1—H1B | 109.5 |
C3—C2—C7 | 121.0 (4) | O1—C1—H1C | 109.5 |
C10—C11—C15 | 109.1 (3) | H1A—C1—H1C | 109.5 |
C10—C11—H11A | 109.9 | H1B—C1—H1C | 109.5 |
C15—C11—H11A | 109.9 | C4—C3—C2 | 120.9 (4) |
C10—C11—H11B | 109.9 | C4—C3—H3 | 119.6 |
C15—C11—H11B | 109.9 | C2—C3—H3 | 119.6 |
H11A—C11—H11B | 108.3 | C11—C15—C16 | 109.9 (3) |
C13—C12—C10 | 109.3 (3) | C11—C15—C14 | 109.2 (4) |
C13—C12—H12A | 109.8 | C16—C15—C14 | 109.4 (3) |
C10—C12—H12A | 109.8 | C11—C15—H15 | 109.5 |
C13—C12—H12B | 109.8 | C16—C15—H15 | 109.5 |
C10—C12—H12B | 109.8 | C14—C15—H15 | 109.5 |
H12A—C12—H12B | 108.3 | C14—C13—C12 | 110.3 (3) |
C10—C9—C8 | 110.1 (3) | C14—C13—C17 | 109.1 (3) |
C10—C9—H9A | 109.6 | C12—C13—C17 | 109.7 (3) |
C8—C9—H9A | 109.6 | C14—C13—H13 | 109.2 |
C10—C9—H9B | 109.6 | C12—C13—H13 | 109.2 |
C8—C9—H9B | 109.6 | C17—C13—H13 | 109.2 |
H9A—C9—H9B | 108.2 | C11—C10—C12 | 109.9 (4) |
C6—C7—C2 | 116.7 (3) | C11—C10—C9 | 109.7 (4) |
C6—C7—C8 | 120.5 (3) | C12—C10—C9 | 109.7 (3) |
C2—C7—C8 | 122.8 (3) | C11—C10—H10 | 109.1 |
C13—C14—C15 | 109.1 (3) | C12—C10—H10 | 109.1 |
C13—C14—H14A | 109.9 | C9—C10—H10 | 109.1 |
C15—C14—H14A | 109.9 | C4—C5—C6 | 121.5 (4) |
C13—C14—H14B | 109.9 | C4—C5—Br1 | 119.5 (3) |
C15—C14—H14B | 109.9 | C6—C5—Br1 | 119.0 (3) |
H14A—C14—H14B | 108.3 |
D—H···A | D—H | H···A | D···A | D—H···A |
C9—H9A···O1 | 0.99 | 2.35 | 3.003 (5) | 123 |
C17—H17B···O1 | 0.99 | 2.35 | 3.004 (4) | 123 |
C4—H4···Cgi | 0.95 | 2.66 | 3.568 (5) | 161 |
Symmetry code: (i) x−1/2, −y+1/2, −z+1. |
Experimental details
Crystal data | |
Chemical formula | C17H21BrO |
Mr | 321.25 |
Crystal system, space group | Orthorhombic, P212121 |
Temperature (K) | 123 |
a, b, c (Å) | 7.3815 (11), 13.2067 (19), 15.067 (2) |
V (Å3) | 1468.8 (4) |
Z | 4 |
Radiation type | Mo Kα |
µ (mm−1) | 2.79 |
Crystal size (mm) | 0.30 × 0.26 × 0.25 |
Data collection | |
Diffractometer | Bruker SMART CCD area-detector diffractometer |
Absorption correction | Multi-scan (SADABS; Bruker, 2002) |
Tmin, Tmax | 0.438, 0.492 |
No. of measured, independent and observed [I > 2σ(I)] reflections | 12697, 2580, 2279 |
Rint | 0.049 |
(sin θ/λ)max (Å−1) | 0.595 |
Refinement | |
R[F2 > 2σ(F2)], wR(F2), S | 0.040, 0.106, 0.86 |
No. of reflections | 2580 |
No. of parameters | 172 |
H-atom treatment | H-atom parameters constrained |
Δρmax, Δρmin (e Å−3) | 0.51, −0.59 |
Absolute structure | Flack (1983), with 1072 Friedel pairs |
Absolute structure parameter | 0.340 (15) |
Computer programs: SMART (Bruker, 2002), SAINT (Bruker, 2002), SHELXS97 (Sheldrick, 2008), SHELXL97 (Sheldrick, 2008), SHELXTL (Sheldrick, 2008).
D—H···A | D—H | H···A | D···A | D—H···A |
C9—H9A···O1 | 0.99 | 2.35 | 3.003 (5) | 123 |
C17—H17B···O1 | 0.99 | 2.35 | 3.004 (4) | 123 |
C4—H4···Cgi | 0.95 | 2.66 | 3.568 (5) | 161 |
Symmetry code: (i) x−1/2, −y+1/2, −z+1. |
Acknowledgements
The author acknowledges financial support from Zhejiang Police College, China.
References
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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.
The molecule of adamantane has high symmetry, Td, and adamantane crystallizes in the highest space group, Fm3 m (Nordman & Schmitkons, 1965; Amoureux et al., 1980; Amoureux & Bee, 1980). In view of the development of crystal structure systems and the design of organic crystals, it is of interest to study the effects of some simple functional substituents having hydrogen-bonding ability on the symmetry of the crystals of adamantane derivatives. The title compound is an important intermediate of adapalene, which is a new synthetic retinoid of the naphthoic acid series, and was developed for the topical treatment of Acne vulgaris and prevention of some forms of cancer, including the acute promyelocytic leukaemia (Chomienne et al., 1994). Here we report the crystal structure of the title compound (Fig. 1).
In the title compound, the structural parameters of the adamantyl are closely comparable to those found in reported molecule (Pouwer et al., 2007). The C atoms of the adamantine moiety have Csp3 hybridized orbitals, with C—C—C angles in the range 106.6 (4)–111.6 (4)°. The methoxy group and bromo group are coplanar with the benzene ring.
It is of note that the O atoms of the methoxy group participates in formation of two intramolecular C—H···O interactions,and both intramolecular C—H···O interactions are nearly the same (Table.1). Meanwhile, in the crystal structure, an intermolecular C—H···π interaction involving the benzene ring (with the centroid Cg) is observed (Table 1).