organic compounds
6,6′-Dimethoxy-2,2′,3,3′,5-pentanitro-1,1′-biphenyl
aCollege of Chemistry and Molecular Engineering, Qingdao University of Science and Technology, Qingdao 266042, People's Republic of China, and bCollege of Chemistry and Chemical Engineering, Luoyang Normal University, Luoyang 471022, People's Republic of China
*Correspondence e-mail: lyhxxjbm@126.com
In the axially chiral title compound, C14H9N5O12, the dihedral angle between the two benzene rings is 86.0 (8)°. In the the molecules display a two-dimensional framework formed by weak intermolecular C—H⋯O hydrogen bonds.
Related literature
For related literature, see: Chen et al. (2001); Fischer et al. (2007); Narayanan et al. (2005); Saito & Koizumi (2005); Xiao et al. (2007); Yang et al. (2005).
Experimental
Crystal data
|
Refinement
|
Data collection: APEX2 (Bruker, 2004); cell SAINT (Bruker, 2004); 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/S1600536808011926/si2086sup1.cif
contains datablocks global, I. DOI:Structure factors: contains datablock I. DOI: 10.1107/S1600536808011926/si2086Isup2.hkl
All chemicals and solvents purchased were of reagent grade and used without further purification. The precursor 6,6'-Dimethoxy-2,2'-dinitro-1,1'-biphenyl was prepared according to the reported procedure (Chen et al., 2001). However, the title compound was obtained by chance when we tried to prepare the 6,6'-Dimethoxy-2,3,5,2',3',5'-hexanitro-1,1'-biphenyl compound. That is, the title compound was synthesized by the nitration reaction of the precursor (0.5 mmol) in 10 ml of concentrated nitric acid at room temperature for 24 h. The resulting solution was poured into 30 ml of ice water and the resulting precipitate was collected by filtration and recrystallized from ethyl acetate to obtain the title crystals, which were suitable for X-ray
Cautious, the title compound has potential explosive property.H atoms were positioned geometrically and treated as riding, with C—H bonding lengths constrained to 0.93 (aromatic H), 0.96 Å (methyl H), and with Uĩso~(H) = 1.2Ueq (aromatic H) or Uĩso~(H) = 1.5Ueq (methyl H).
Data collection: APEX2 (Bruker, 2004); cell
SAINT (Bruker, 2004); data reduction: SAINT (Bruker, 2004); 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).C14H9N5O12 | Z = 2 |
Mr = 439.26 | F(000) = 448 |
Triclinic, P1 | Dx = 1.687 Mg m−3 |
Hall symbol: -P 1 | Mo Kα radiation, λ = 0.71073 Å |
a = 10.3765 (13) Å | Cell parameters from 2971 reflections |
b = 10.4423 (13) Å | θ = 2.4–25.5° |
c = 10.4429 (13) Å | µ = 0.15 mm−1 |
α = 82.565 (1)° | T = 291 K |
β = 62.285 (1)° | Block, yellow |
γ = 60.520 (1)° | 0.41 × 0.34 × 0.29 mm |
V = 864.73 (19) Å3 |
Bruker APEXII CCD area-detector diffractometer | 3194 independent reflections |
Radiation source: fine-focus sealed tube | 2686 reflections with I > 2σ(I) |
Graphite monochromator | Rint = 0.013 |
ϕ and ω scans | θmax = 25.5°, θmin = 2.4° |
Absorption correction: multi-scan (SADABS; Sheldrick, 1996) | h = −12→12 |
Tmin = 0.940, Tmax = 0.958 | k = −12→12 |
6598 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)] = 0.041 | Hydrogen site location: inferred from neighbouring sites |
wR(F2) = 0.117 | H-atom parameters constrained |
S = 1.02 | w = 1/[σ2(Fo2) + (0.059P)2 + 0.3851P] where P = (Fo2 + 2Fc2)/3 |
3194 reflections | (Δ/σ)max < 0.001 |
282 parameters | Δρmax = 0.25 e Å−3 |
0 restraints | Δρmin = −0.22 e Å−3 |
C14H9N5O12 | γ = 60.520 (1)° |
Mr = 439.26 | V = 864.73 (19) Å3 |
Triclinic, P1 | Z = 2 |
a = 10.3765 (13) Å | Mo Kα radiation |
b = 10.4423 (13) Å | µ = 0.15 mm−1 |
c = 10.4429 (13) Å | T = 291 K |
α = 82.565 (1)° | 0.41 × 0.34 × 0.29 mm |
β = 62.285 (1)° |
Bruker APEXII CCD area-detector diffractometer | 3194 independent reflections |
Absorption correction: multi-scan (SADABS; Sheldrick, 1996) | 2686 reflections with I > 2σ(I) |
Tmin = 0.940, Tmax = 0.958 | Rint = 0.013 |
6598 measured reflections |
R[F2 > 2σ(F2)] = 0.041 | 0 restraints |
wR(F2) = 0.117 | H-atom parameters constrained |
S = 1.02 | Δρmax = 0.25 e Å−3 |
3194 reflections | Δρmin = −0.22 e Å−3 |
282 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 | ||
O1 | 0.36354 (18) | 0.70656 (16) | 0.19497 (14) | 0.0448 (3) | |
O2 | 0.69388 (15) | 0.72440 (14) | 0.24022 (14) | 0.0382 (3) | |
O3 | 0.4217 (2) | 0.40331 (19) | 0.2500 (2) | 0.0678 (5) | |
O4 | 0.1905 (2) | 0.4489 (2) | 0.4428 (3) | 0.0852 (6) | |
O5 | 0.2186 (3) | 0.6187 (2) | 0.84423 (19) | 0.0803 (6) | |
O6 | 0.2172 (2) | 0.8273 (2) | 0.83302 (16) | 0.0648 (5) | |
O7 | 0.5003 (2) | 0.8533 (2) | 0.57692 (17) | 0.0582 (4) | |
O8 | 0.2549 (2) | 1.03379 (17) | 0.61824 (19) | 0.0640 (5) | |
O9 | 0.2989 (2) | 1.33902 (17) | 0.06894 (18) | 0.0571 (4) | |
O10 | 0.0962 (2) | 1.3106 (2) | 0.2303 (2) | 0.0846 (7) | |
O11 | 0.0882 (2) | 1.0384 (2) | 0.2635 (2) | 0.0761 (6) | |
O12 | 0.04620 (19) | 1.1239 (2) | 0.46358 (18) | 0.0702 (5) | |
N1 | 0.3036 (2) | 0.4748 (2) | 0.3675 (2) | 0.0507 (5) | |
N2 | 0.2378 (2) | 0.7181 (2) | 0.77767 (18) | 0.0484 (4) | |
N3 | 0.3645 (2) | 0.90493 (19) | 0.58132 (16) | 0.0404 (4) | |
N4 | 0.2444 (2) | 1.26902 (17) | 0.15879 (17) | 0.0391 (4) | |
N5 | 0.1327 (2) | 1.06936 (18) | 0.3386 (2) | 0.0433 (4) | |
C1 | 0.3442 (2) | 0.69672 (19) | 0.33107 (19) | 0.0316 (4) | |
C2 | 0.3056 (2) | 0.59612 (19) | 0.4225 (2) | 0.0351 (4) | |
C3 | 0.2736 (2) | 0.6019 (2) | 0.5661 (2) | 0.0371 (4) | |
H3 | 0.2441 | 0.5362 | 0.6249 | 0.045* | |
C4 | 0.2859 (2) | 0.7060 (2) | 0.62141 (19) | 0.0351 (4) | |
C5 | 0.3359 (2) | 0.80022 (19) | 0.52985 (19) | 0.0314 (4) | |
C6 | 0.3661 (2) | 0.79704 (18) | 0.38642 (18) | 0.0283 (4) | |
C7 | 0.4211 (2) | 0.89880 (18) | 0.28967 (17) | 0.0280 (4) | |
C8 | 0.5928 (2) | 0.85656 (18) | 0.21610 (18) | 0.0287 (4) | |
C9 | 0.6454 (2) | 0.9505 (2) | 0.12600 (18) | 0.0330 (4) | |
H9 | 0.7584 | 0.9224 | 0.0769 | 0.040* | |
C10 | 0.5303 (2) | 1.08464 (19) | 0.10979 (18) | 0.0331 (4) | |
H10 | 0.5660 | 1.1471 | 0.0507 | 0.040* | |
C11 | 0.3623 (2) | 1.12714 (18) | 0.18047 (18) | 0.0308 (4) | |
C12 | 0.3096 (2) | 1.03275 (19) | 0.26904 (18) | 0.0302 (4) | |
C13 | 0.2548 (4) | 0.6888 (3) | 0.1570 (3) | 0.0651 (7) | |
H13A | 0.3124 | 0.5908 | 0.1070 | 0.098* | |
H13B | 0.2243 | 0.7609 | 0.0946 | 0.098* | |
H13C | 0.1559 | 0.7028 | 0.2442 | 0.098* | |
C14 | 0.8715 (2) | 0.6715 (2) | 0.1654 (3) | 0.0536 (6) | |
H14A | 0.9102 | 0.6645 | 0.0619 | 0.080* | |
H14B | 0.9285 | 0.5755 | 0.1910 | 0.080* | |
H14C | 0.8939 | 0.7394 | 0.1934 | 0.080* |
U11 | U22 | U33 | U12 | U13 | U23 | |
O1 | 0.0591 (9) | 0.0572 (9) | 0.0359 (7) | −0.0397 (8) | −0.0238 (7) | 0.0089 (6) |
O2 | 0.0289 (6) | 0.0334 (7) | 0.0451 (7) | −0.0130 (5) | −0.0157 (6) | 0.0099 (5) |
O3 | 0.0824 (13) | 0.0479 (9) | 0.0718 (12) | −0.0313 (9) | −0.0322 (10) | −0.0061 (8) |
O4 | 0.0745 (13) | 0.0756 (13) | 0.1234 (17) | −0.0582 (11) | −0.0347 (12) | 0.0068 (12) |
O5 | 0.1272 (17) | 0.1048 (15) | 0.0559 (10) | −0.0899 (15) | −0.0508 (11) | 0.0482 (10) |
O6 | 0.0882 (13) | 0.0741 (12) | 0.0384 (8) | −0.0475 (10) | −0.0264 (8) | 0.0091 (8) |
O7 | 0.0600 (10) | 0.0829 (12) | 0.0526 (9) | −0.0446 (9) | −0.0309 (8) | 0.0070 (8) |
O8 | 0.0900 (13) | 0.0396 (9) | 0.0696 (11) | −0.0276 (9) | −0.0460 (10) | 0.0029 (7) |
O9 | 0.0681 (10) | 0.0444 (8) | 0.0624 (10) | −0.0317 (8) | −0.0342 (8) | 0.0286 (7) |
O10 | 0.0399 (9) | 0.0592 (11) | 0.1113 (16) | −0.0129 (8) | −0.0246 (10) | 0.0458 (11) |
O11 | 0.0482 (10) | 0.0769 (12) | 0.1132 (16) | −0.0263 (9) | −0.0453 (10) | −0.0055 (11) |
O12 | 0.0383 (8) | 0.0812 (12) | 0.0476 (10) | −0.0124 (8) | −0.0077 (7) | 0.0123 (9) |
N1 | 0.0541 (11) | 0.0396 (9) | 0.0703 (13) | −0.0277 (9) | −0.0332 (10) | 0.0094 (9) |
N2 | 0.0543 (11) | 0.0646 (12) | 0.0385 (9) | −0.0381 (10) | −0.0243 (8) | 0.0213 (9) |
N3 | 0.0540 (10) | 0.0481 (10) | 0.0313 (8) | −0.0321 (9) | −0.0224 (7) | 0.0098 (7) |
N4 | 0.0467 (10) | 0.0305 (8) | 0.0402 (9) | −0.0181 (7) | −0.0226 (8) | 0.0103 (7) |
N5 | 0.0327 (8) | 0.0344 (9) | 0.0536 (11) | −0.0137 (7) | −0.0189 (8) | 0.0149 (7) |
C1 | 0.0280 (8) | 0.0314 (9) | 0.0333 (9) | −0.0139 (7) | −0.0132 (7) | 0.0033 (7) |
C2 | 0.0309 (9) | 0.0296 (9) | 0.0464 (10) | −0.0163 (7) | −0.0173 (8) | 0.0042 (8) |
C3 | 0.0335 (9) | 0.0347 (10) | 0.0450 (11) | −0.0203 (8) | −0.0185 (8) | 0.0158 (8) |
C4 | 0.0338 (9) | 0.0400 (10) | 0.0328 (9) | −0.0198 (8) | −0.0162 (8) | 0.0116 (8) |
C5 | 0.0305 (9) | 0.0312 (9) | 0.0340 (9) | −0.0153 (7) | −0.0166 (7) | 0.0064 (7) |
C6 | 0.0247 (8) | 0.0257 (8) | 0.0322 (9) | −0.0112 (7) | −0.0132 (7) | 0.0055 (7) |
C7 | 0.0317 (9) | 0.0279 (8) | 0.0263 (8) | −0.0158 (7) | −0.0136 (7) | 0.0036 (6) |
C8 | 0.0308 (9) | 0.0288 (8) | 0.0281 (8) | −0.0143 (7) | −0.0147 (7) | 0.0022 (7) |
C9 | 0.0314 (9) | 0.0375 (9) | 0.0306 (9) | −0.0202 (8) | −0.0109 (7) | 0.0026 (7) |
C10 | 0.0427 (10) | 0.0336 (9) | 0.0288 (9) | −0.0250 (8) | −0.0146 (8) | 0.0060 (7) |
C11 | 0.0383 (9) | 0.0271 (8) | 0.0288 (8) | −0.0156 (7) | −0.0177 (7) | 0.0048 (7) |
C12 | 0.0303 (9) | 0.0311 (9) | 0.0281 (8) | −0.0153 (7) | −0.0127 (7) | 0.0037 (7) |
C13 | 0.098 (2) | 0.0792 (18) | 0.0680 (15) | −0.0620 (16) | −0.0593 (15) | 0.0260 (13) |
C14 | 0.0295 (10) | 0.0445 (12) | 0.0705 (15) | −0.0120 (9) | −0.0182 (10) | 0.0085 (10) |
O1—C1 | 1.337 (2) | C2—C3 | 1.380 (3) |
O1—C13 | 1.451 (3) | C3—C4 | 1.379 (3) |
O2—C8 | 1.341 (2) | C3—H3 | 0.9300 |
O2—C14 | 1.443 (2) | C4—C5 | 1.396 (2) |
O3—N1 | 1.225 (3) | C5—C6 | 1.382 (2) |
O4—N1 | 1.211 (2) | C6—C7 | 1.503 (2) |
O5—N2 | 1.220 (2) | C7—C12 | 1.379 (2) |
O6—N2 | 1.223 (2) | C7—C8 | 1.414 (2) |
O7—N3 | 1.215 (2) | C8—C9 | 1.399 (2) |
O8—N3 | 1.214 (2) | C9—C10 | 1.377 (3) |
O9—N4 | 1.212 (2) | C9—H9 | 0.9300 |
O10—N4 | 1.212 (2) | C10—C11 | 1.381 (3) |
O11—N5 | 1.218 (2) | C10—H10 | 0.9300 |
O12—N5 | 1.197 (2) | C11—C12 | 1.396 (2) |
N1—C2 | 1.470 (2) | C13—H13A | 0.9600 |
N2—C4 | 1.470 (2) | C13—H13B | 0.9600 |
N3—C5 | 1.481 (2) | C13—H13C | 0.9600 |
N4—C11 | 1.459 (2) | C14—H14A | 0.9600 |
N5—C12 | 1.478 (2) | C14—H14B | 0.9600 |
C1—C2 | 1.405 (2) | C14—H14C | 0.9600 |
C1—C6 | 1.413 (2) | ||
C1—O1—C13 | 120.36 (16) | C5—C6—C7 | 120.87 (15) |
C8—O2—C14 | 118.30 (14) | C1—C6—C7 | 119.98 (15) |
O4—N1—O3 | 124.87 (19) | C12—C7—C8 | 118.36 (15) |
O4—N1—C2 | 118.4 (2) | C12—C7—C6 | 122.25 (15) |
O3—N1—C2 | 116.66 (17) | C8—C7—C6 | 119.39 (14) |
O5—N2—O6 | 124.23 (18) | O2—C8—C9 | 125.08 (15) |
O5—N2—C4 | 117.39 (18) | O2—C8—C7 | 115.04 (14) |
O6—N2—C4 | 118.38 (16) | C9—C8—C7 | 119.88 (15) |
O8—N3—O7 | 126.09 (18) | C10—C9—C8 | 120.20 (16) |
O8—N3—C5 | 117.95 (16) | C10—C9—H9 | 119.9 |
O7—N3—C5 | 115.89 (17) | C8—C9—H9 | 119.9 |
O9—N4—O10 | 122.95 (17) | C9—C10—C11 | 120.58 (16) |
O9—N4—C11 | 118.70 (16) | C9—C10—H10 | 119.7 |
O10—N4—C11 | 118.34 (15) | C11—C10—H10 | 119.7 |
O12—N5—O11 | 125.41 (19) | C10—C11—C12 | 119.36 (16) |
O12—N5—C12 | 118.04 (18) | C10—C11—N4 | 118.98 (15) |
O11—N5—C12 | 116.54 (17) | C12—C11—N4 | 121.66 (16) |
O1—C1—C2 | 126.17 (16) | C7—C12—C11 | 121.61 (16) |
O1—C1—C6 | 116.23 (15) | C7—C12—N5 | 117.27 (15) |
C2—C1—C6 | 117.61 (16) | C11—C12—N5 | 121.06 (15) |
C3—C2—C1 | 122.38 (16) | O1—C13—H13A | 109.5 |
C3—C2—N1 | 116.34 (16) | O1—C13—H13B | 109.5 |
C1—C2—N1 | 121.24 (17) | H13A—C13—H13B | 109.5 |
C2—C3—C4 | 119.28 (16) | O1—C13—H13C | 109.5 |
C2—C3—H3 | 120.4 | H13A—C13—H13C | 109.5 |
C4—C3—H3 | 120.4 | H13B—C13—H13C | 109.5 |
C3—C4—C5 | 119.40 (16) | O2—C14—H14A | 109.5 |
C3—C4—N2 | 118.23 (16) | O2—C14—H14B | 109.5 |
C5—C4—N2 | 122.31 (17) | H14A—C14—H14B | 109.5 |
C6—C5—C4 | 121.87 (16) | O2—C14—H14C | 109.5 |
C6—C5—N3 | 116.95 (15) | H14A—C14—H14C | 109.5 |
C4—C5—N3 | 121.15 (15) | H14B—C14—H14C | 109.5 |
C5—C6—C1 | 119.15 (15) | ||
C13—O1—C1—C2 | 39.2 (3) | C2—C1—C6—C7 | 175.07 (15) |
C13—O1—C1—C6 | −141.22 (19) | C5—C6—C7—C12 | −95.4 (2) |
O1—C1—C2—C3 | −174.24 (17) | C1—C6—C7—C12 | 84.4 (2) |
C6—C1—C2—C3 | 6.2 (3) | C5—C6—C7—C8 | 84.9 (2) |
O1—C1—C2—N1 | 8.1 (3) | C1—C6—C7—C8 | −95.26 (19) |
C6—C1—C2—N1 | −171.47 (16) | C14—O2—C8—C9 | −1.7 (3) |
O4—N1—C2—C3 | 45.1 (3) | C14—O2—C8—C7 | 178.11 (16) |
O3—N1—C2—C3 | −132.0 (2) | C12—C7—C8—O2 | −179.37 (14) |
O4—N1—C2—C1 | −137.1 (2) | C6—C7—C8—O2 | 0.3 (2) |
O3—N1—C2—C1 | 45.8 (3) | C12—C7—C8—C9 | 0.4 (2) |
C1—C2—C3—C4 | −2.5 (3) | C6—C7—C8—C9 | −179.88 (15) |
N1—C2—C3—C4 | 175.21 (16) | O2—C8—C9—C10 | −179.60 (15) |
C2—C3—C4—C5 | −2.2 (3) | C7—C8—C9—C10 | 0.6 (2) |
C2—C3—C4—N2 | 175.03 (16) | C8—C9—C10—C11 | −0.9 (3) |
O5—N2—C4—C3 | 12.9 (3) | C9—C10—C11—C12 | 0.0 (2) |
O6—N2—C4—C3 | −166.04 (19) | C9—C10—C11—N4 | −179.06 (15) |
O5—N2—C4—C5 | −170.01 (19) | O9—N4—C11—C10 | 6.8 (2) |
O6—N2—C4—C5 | 11.1 (3) | O10—N4—C11—C10 | −174.16 (19) |
C3—C4—C5—C6 | 3.1 (3) | O9—N4—C11—C12 | −172.27 (17) |
N2—C4—C5—C6 | −173.96 (16) | O10—N4—C11—C12 | 6.8 (3) |
C3—C4—C5—N3 | −174.78 (16) | C8—C7—C12—C11 | −1.3 (2) |
N2—C4—C5—N3 | 8.2 (3) | C6—C7—C12—C11 | 179.06 (15) |
O8—N3—C5—C6 | 81.7 (2) | C8—C7—C12—N5 | 175.72 (15) |
O7—N3—C5—C6 | −95.50 (19) | C6—C7—C12—N5 | −3.9 (2) |
O8—N3—C5—C4 | −100.3 (2) | C10—C11—C12—C7 | 1.0 (2) |
O7—N3—C5—C4 | 82.5 (2) | N4—C11—C12—C7 | −179.88 (15) |
C4—C5—C6—C1 | 0.6 (3) | C10—C11—C12—N5 | −175.84 (16) |
N3—C5—C6—C1 | 178.61 (15) | N4—C11—C12—N5 | 3.2 (2) |
C4—C5—C6—C7 | −179.53 (15) | O12—N5—C12—C7 | 84.0 (2) |
N3—C5—C6—C7 | −1.6 (2) | O11—N5—C12—C7 | −94.7 (2) |
O1—C1—C6—C5 | 175.27 (15) | O12—N5—C12—C11 | −99.0 (2) |
C2—C1—C6—C5 | −5.1 (2) | O11—N5—C12—C11 | 82.3 (2) |
O1—C1—C6—C7 | −4.6 (2) |
D—H···A | D—H | H···A | D···A | D—H···A |
C13—H13A···O3 | 0.96 | 2.45 | 2.926 (3) | 111 |
C14—H14B···O10i | 0.96 | 2.55 | 3.502 (3) | 174 |
C14—H14C···O8ii | 0.96 | 2.58 | 3.371 (3) | 140 |
Symmetry codes: (i) x+1, y−1, z; (ii) −x+1, −y+2, −z+1. |
Experimental details
Crystal data | |
Chemical formula | C14H9N5O12 |
Mr | 439.26 |
Crystal system, space group | Triclinic, P1 |
Temperature (K) | 291 |
a, b, c (Å) | 10.3765 (13), 10.4423 (13), 10.4429 (13) |
α, β, γ (°) | 82.565 (1), 62.285 (1), 60.520 (1) |
V (Å3) | 864.73 (19) |
Z | 2 |
Radiation type | Mo Kα |
µ (mm−1) | 0.15 |
Crystal size (mm) | 0.41 × 0.34 × 0.29 |
Data collection | |
Diffractometer | Bruker APEXII CCD area-detector diffractometer |
Absorption correction | Multi-scan (SADABS; Sheldrick, 1996) |
Tmin, Tmax | 0.940, 0.958 |
No. of measured, independent and observed [I > 2σ(I)] reflections | 6598, 3194, 2686 |
Rint | 0.013 |
(sin θ/λ)max (Å−1) | 0.606 |
Refinement | |
R[F2 > 2σ(F2)], wR(F2), S | 0.041, 0.117, 1.02 |
No. of reflections | 3194 |
No. of parameters | 282 |
H-atom treatment | H-atom parameters constrained |
Δρmax, Δρmin (e Å−3) | 0.25, −0.22 |
Computer programs: APEX2 (Bruker, 2004), SAINT (Bruker, 2004), SHELXS97 (Sheldrick, 2008), SHELXL97 (Sheldrick, 2008), SHELXTL (Sheldrick, 2008).
D—H···A | D—H | H···A | D···A | D—H···A |
C13—H13A···O3 | 0.96 | 2.45 | 2.926 (3) | 110.7 |
C14—H14B···O10i | 0.96 | 2.55 | 3.502 (3) | 173.9 |
C14—H14C···O8ii | 0.96 | 2.58 | 3.371 (3) | 140.2 |
Symmetry codes: (i) x+1, y−1, z; (ii) −x+1, −y+2, −z+1. |
Acknowledgements
This work was supported by the Henan Innovation Project for University Prominent Research Talents (No. 2005 KYCX021), and the Natural Science Foundation of Henan Province.
References
Bruker (2004). APEX2 and SAINT. Bruker AXS Inc., Madison, Wisconsin, USA. Google Scholar
Chen, Y. X., Li, Y. M., Lam, K. H. & Chan, A. S. C. (2001). Chin. J. Chem. 19, 794–799. CrossRef CAS Google Scholar
Fischer, A., Yathirajan, H. S., Ashalatha, B. V., Narayana, B. & Sarojini, B. K. (2007). Acta Cryst. E63, o1357–o1358. Web of Science CSD CrossRef IUCr Journals Google Scholar
Narayanan, R., Tiwari, P., Inoa, D. & Ashok, B. T. (2005). Life Sci. 77, 2312–2323. Web of Science CrossRef PubMed CAS Google Scholar
Saito, S. & Koizumi, Y. (2005). Tetrahedron Lett. 46, 4715–4717. Web of Science CrossRef CAS Google Scholar
Sheldrick, G. M. (1996). SADABS. University of Göttingen, Germany. Google Scholar
Sheldrick, G. M. (2008). Acta Cryst. A64, 112–122. Web of Science CrossRef CAS IUCr Journals Google Scholar
Xiao, X.-Y., Miao, S.-B., Lan, H.-H., Jiang, Y.-Y. & Ji, B.-M. (2007). Acta Cryst. E63, o4012. Web of Science CSD CrossRef IUCr Journals Google Scholar
Yang, D. S., Ma, H. X., Hu, R. Z., Song, J. R. & Zhao, F. Q. (2005). J. Mol. Struct. 779, 49–54. Web of Science CSD CrossRef CAS 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.
Nitro compounds, specially aromatic nitro compounds have been widely studied owing to their potential application in, for example, pathology (Narayanan, et al., 2005), materials science (Saito & Koizumi, 2005). On the other hand, in our search for chiral compounds, the title related chiral 6,6'-dimethoxy-2,3,2',5'-tetranitro-1,1'-biphenyl compound was synthesized by Xiao et al., (2007). Herein, as an extension to our previous investigation, we report the synthesis and structural characterization of the title compound.
In contrast to our highly substituted biphenyl compounds, the unsubstituted biphenyl groups in compounds synthesized by Fischer et al., (2007) were found to be approximately planar. The molecular geometry in the title compound displays special behavior, the dihedral angle between the benzene rings is 94.0 (8)°, and all the nitro groups at positions 2,3,5,2',3' are twisted out of the corresponding rings which is 45.5 (3)°, 13.5 (5)°, 98.4 (3)°, 6.6 (4)° and 83.5 (5)°, respectively, as depicted in Fig.1. Bond lengths and angles are in good agreement with the dinitrophenyl group in the structure of 1-(2,4-dinitrophenyl)azo-1-nitrocyclohexane, reported by Yang et al., (2005). One intramolecular C—H···O hydrogen bond is observed in the title molecule, and the two intermolecular C—H···O hydrogen bonding contacts (Table 1) form closed two-dimensional grid motifs (Fig. 2).