organic compounds
1,7,8,9,10,10-Hexachloro-4-(thiophen-2-ylmethyl)-4-azatricyclo[5.2.1.02,6]dec-8-ene-3,5-dione
aCAS in Crystallography and Biophysics, University of Madras, Guindy Campus, Chennai 600025, India, bDepartment of Chemistry, Pondicherry University, Pondicherry 605014, India, and cCentre for Bioinformatics, Pondicherry University, Pondicherry 605014, India
*Correspondence e-mail: gunaunom@gmail.com
In the title compound, C14H7Cl6NO2S, the six-membered ring of the azatricyclo system has a boat conformation whereas the five-membered rings have an The thiophene ring and the ring of the succinimide moiety enclose a dihedral angle of 67.2 (1)°. The crystal packing is stabilized by weak intermolecular C—H⋯O hydrogen bonds.
Related literature
For the biological activity of cyclic et al. (2006); Nakamura et al. (2006); Stefańska et al. (2010).
see: DuarteExperimental
Crystal data
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Refinement
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Data collection: CrysAlis PRO (Oxford Diffraction, 2010); cell CrysAlis PRO; data reduction: CrysAlis PRO; program(s) used to solve structure: SHELXS97 (Sheldrick, 2008); program(s) used to refine structure: SHELXL97 (Sheldrick, 2008); molecular graphics: ORTEP-3 (Farrugia, 1997); software used to prepare material for publication: SHELXL97 and PLATON (Spek, 2009).
Supporting information
10.1107/S1600536811032788/bt5586sup1.cif
contains datablocks I, global. DOI:Structure factors: contains datablock I. DOI: 10.1107/S1600536811032788/bt5586Isup2.hkl
Supporting information file. DOI: 10.1107/S1600536811032788/bt5586Isup3.cml
1-(thiophen-2-yl)methanamine (1 equiv) and 1,4,5,6,7,7-hexachloro-5-norbornene-2,3-dicarboxylic anhydride (1 equiv) were stirred at room temperature in dry ethyl acetate for 30 min. Ethyl acetate was removed under reduced pressure; the resulting residue was dissolved in toluene. To this reaction mixture was added acetyl chloride (5 equiv) and refluxed for 1 h. The reaction mixture was brought to room temperature and washed with aqueous Na2CO3 and dried over anhydrous Na2SO4. Filtered and concentrated under reduced pressure followed by silica gel column purification afforded the imide, 1,7,8,9,10,10-Hexachloro-4-(thiophen-2-yl-methyl)-4-azatricyclo[5.2.1.02,6]dec-8-ene-3,5-dione, in 92% yield as colorless solid.
Data collection: CrysAlis PRO (Oxford Diffraction, 2010); cell
CrysAlis PRO (Oxford Diffraction, 2010); data reduction: CrysAlis PRO (Oxford Diffraction, 2010); program(s) used to solve structure: SHELXS97 (Sheldrick, 2008); program(s) used to refine structure: SHELXL97 (Sheldrick, 2008); molecular graphics: ORTEP-3 (Farrugia, 1997); software used to prepare material for publication: SHELXL97 (Sheldrick, 2008) and PLATON (Spek, 2009).Fig. 1. The ORTEP diagram of the compound with 30% probability displacement ellipsoids. | |
Fig. 2. Packing diagram. |
C14H7Cl6NO2S | F(000) = 3712 |
Mr = 465.97 | Dx = 1.729 Mg m−3 |
Tetragonal, I41/a | Mo Kα radiation, λ = 0.71073 Å |
Hall symbol: -I 4ad | µ = 1.08 mm−1 |
a = 23.8136 (10) Å | T = 293 K |
c = 12.6240 (9) Å | Tetragonal, colourless |
V = 7158.9 (7) Å3 | 0.20 × 0.20 × 0.20 mm |
Z = 16 |
Oxford Diffraction Xcalibur Eos diffractometer | 4156 independent reflections |
Radiation source: fine-focus sealed tube | 2283 reflections with I > 2σ(I) |
Graphite monochromator | Rint = 0.032 |
Detector resolution: 15.9821 pixels mm-1 | θmax = 29.2°, θmin = 3.0° |
ω scans | h = −29→16 |
Absorption correction: multi-scan (CrysAlis PRO; Oxford Diffraction, 2010) | k = −28→32 |
Tmin = 0.978, Tmax = 0.984 | l = −15→17 |
8488 measured reflections |
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)] = 0.037 | Hydrogen site location: inferred from neighbouring sites |
wR(F2) = 0.075 | H-atom parameters constrained |
S = 0.82 | w = 1/[σ2(Fo2) + (0.0329P)2] where P = (Fo2 + 2Fc2)/3 |
4156 reflections | (Δ/σ)max = 0.001 |
217 parameters | Δρmax = 0.31 e Å−3 |
0 restraints | Δρmin = −0.31 e Å−3 |
C14H7Cl6NO2S | Z = 16 |
Mr = 465.97 | Mo Kα radiation |
Tetragonal, I41/a | µ = 1.08 mm−1 |
a = 23.8136 (10) Å | T = 293 K |
c = 12.6240 (9) Å | 0.20 × 0.20 × 0.20 mm |
V = 7158.9 (7) Å3 |
Oxford Diffraction Xcalibur Eos diffractometer | 4156 independent reflections |
Absorption correction: multi-scan (CrysAlis PRO; Oxford Diffraction, 2010) | 2283 reflections with I > 2σ(I) |
Tmin = 0.978, Tmax = 0.984 | Rint = 0.032 |
8488 measured reflections |
R[F2 > 2σ(F2)] = 0.037 | 0 restraints |
wR(F2) = 0.075 | H-atom parameters constrained |
S = 0.82 | Δρmax = 0.31 e Å−3 |
4156 reflections | Δρmin = −0.31 e Å−3 |
217 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 | 0.60327 (10) | 1.16190 (10) | 0.08398 (18) | 0.0301 (6) | |
C2 | 0.66296 (9) | 1.13668 (9) | 0.09872 (19) | 0.0295 (6) | |
H2 | 0.6864 | 1.1422 | 0.0358 | 0.035* | |
C3 | 0.69158 (10) | 1.15740 (10) | 0.1978 (2) | 0.0326 (6) | |
C5 | 0.67499 (10) | 1.06286 (10) | 0.2282 (2) | 0.0344 (6) | |
C6 | 0.65133 (9) | 1.07395 (9) | 0.11968 (18) | 0.0288 (6) | |
H6 | 0.6690 | 1.0500 | 0.0660 | 0.035* | |
C7 | 0.58607 (9) | 1.07054 (9) | 0.11446 (18) | 0.0276 (5) | |
C8 | 0.56310 (9) | 1.10361 (10) | 0.20743 (17) | 0.0291 (6) | |
C9 | 0.57323 (9) | 1.15729 (10) | 0.18980 (18) | 0.0285 (6) | |
C10 | 0.57402 (9) | 1.11314 (11) | 0.02405 (18) | 0.0342 (6) | |
C11 | 0.72133 (10) | 1.11804 (11) | 0.3724 (2) | 0.0432 (7) | |
H11A | 0.7054 | 1.0897 | 0.4187 | 0.052* | |
H11B | 0.7116 | 1.1546 | 0.4009 | 0.052* | |
C12 | 0.78385 (11) | 1.11200 (10) | 0.37121 (19) | 0.0391 (7) | |
C13 | 0.82275 (11) | 1.15206 (11) | 0.3454 (2) | 0.0485 (8) | |
H13 | 0.8140 | 1.1888 | 0.3269 | 0.058* | |
C14 | 0.87777 (12) | 1.13051 (13) | 0.3504 (2) | 0.0617 (9) | |
H14 | 0.9094 | 1.1520 | 0.3355 | 0.074* | |
C15 | 0.88049 (12) | 1.07617 (13) | 0.3788 (2) | 0.0573 (8) | |
H15 | 0.9137 | 1.0559 | 0.3857 | 0.069* | |
N4 | 0.69675 (8) | 1.11223 (8) | 0.26664 (16) | 0.0321 (5) | |
O1 | 0.70632 (7) | 1.20435 (7) | 0.21805 (15) | 0.0486 (5) | |
O2 | 0.67518 (8) | 1.01900 (7) | 0.27599 (16) | 0.0550 (5) | |
S | 0.81534 (3) | 1.04915 (3) | 0.40044 (6) | 0.0562 (2) | |
Cl1 | 0.60119 (3) | 1.22738 (3) | 0.02283 (6) | 0.0557 (2) | |
Cl2 | 0.55865 (3) | 1.00296 (3) | 0.09833 (6) | 0.0508 (2) | |
Cl3 | 0.53529 (3) | 1.07338 (3) | 0.31710 (6) | 0.0528 (2) | |
Cl4 | 0.56334 (3) | 1.21203 (3) | 0.27281 (6) | 0.0553 (2) | |
Cl5 | 0.50195 (3) | 1.12482 (3) | 0.00103 (6) | 0.0524 (2) | |
Cl6 | 0.60575 (3) | 1.09588 (3) | −0.09771 (5) | 0.0593 (2) |
U11 | U22 | U33 | U12 | U13 | U23 | |
C1 | 0.0295 (13) | 0.0306 (13) | 0.0303 (14) | 0.0027 (11) | 0.0006 (11) | 0.0069 (11) |
C2 | 0.0227 (12) | 0.0304 (13) | 0.0353 (14) | −0.0024 (11) | 0.0064 (11) | 0.0025 (11) |
C3 | 0.0210 (12) | 0.0312 (14) | 0.0456 (17) | −0.0027 (12) | 0.0021 (12) | −0.0004 (13) |
C5 | 0.0246 (13) | 0.0282 (14) | 0.0502 (17) | 0.0013 (11) | −0.0019 (12) | 0.0016 (13) |
C6 | 0.0233 (12) | 0.0267 (12) | 0.0363 (15) | 0.0006 (11) | 0.0046 (11) | −0.0074 (11) |
C7 | 0.0259 (12) | 0.0271 (13) | 0.0300 (14) | −0.0056 (11) | −0.0008 (11) | −0.0045 (11) |
C8 | 0.0221 (12) | 0.0384 (14) | 0.0269 (14) | −0.0004 (12) | 0.0030 (10) | 0.0015 (12) |
C9 | 0.0239 (12) | 0.0318 (14) | 0.0298 (14) | 0.0080 (12) | 0.0016 (11) | −0.0028 (11) |
C10 | 0.0250 (13) | 0.0519 (16) | 0.0258 (13) | 0.0007 (13) | −0.0012 (11) | −0.0058 (12) |
C11 | 0.0458 (16) | 0.0434 (16) | 0.0404 (17) | 0.0009 (14) | −0.0096 (14) | −0.0005 (13) |
C12 | 0.0431 (16) | 0.0383 (15) | 0.0358 (16) | 0.0025 (14) | −0.0143 (13) | 0.0004 (13) |
C13 | 0.0452 (17) | 0.0378 (16) | 0.062 (2) | −0.0073 (15) | −0.0266 (15) | 0.0034 (14) |
C14 | 0.0424 (18) | 0.065 (2) | 0.078 (2) | −0.0156 (18) | −0.0232 (16) | 0.0116 (19) |
C15 | 0.0419 (17) | 0.067 (2) | 0.064 (2) | 0.0061 (17) | −0.0172 (15) | 0.0063 (17) |
N4 | 0.0287 (11) | 0.0289 (11) | 0.0388 (13) | −0.0024 (10) | −0.0077 (10) | 0.0019 (10) |
O1 | 0.0490 (11) | 0.0291 (10) | 0.0678 (14) | −0.0106 (9) | −0.0153 (10) | −0.0003 (9) |
O2 | 0.0545 (12) | 0.0307 (10) | 0.0798 (16) | −0.0019 (10) | −0.0175 (11) | 0.0179 (10) |
S | 0.0603 (5) | 0.0458 (4) | 0.0625 (5) | 0.0053 (4) | −0.0086 (4) | 0.0148 (4) |
Cl1 | 0.0628 (5) | 0.0437 (4) | 0.0607 (5) | 0.0027 (4) | −0.0044 (4) | 0.0242 (4) |
Cl2 | 0.0489 (4) | 0.0382 (4) | 0.0653 (5) | −0.0164 (3) | −0.0050 (4) | −0.0117 (3) |
Cl3 | 0.0537 (4) | 0.0620 (5) | 0.0427 (4) | −0.0081 (4) | 0.0166 (4) | 0.0107 (4) |
Cl4 | 0.0606 (5) | 0.0437 (4) | 0.0617 (5) | 0.0095 (4) | 0.0148 (4) | −0.0194 (4) |
Cl5 | 0.0325 (3) | 0.0753 (5) | 0.0494 (4) | −0.0002 (4) | −0.0142 (3) | 0.0020 (4) |
Cl6 | 0.0611 (5) | 0.0861 (6) | 0.0308 (4) | −0.0023 (5) | 0.0084 (4) | −0.0126 (4) |
C1—C9 | 1.519 (3) | C8—C9 | 1.320 (3) |
C1—C10 | 1.551 (3) | C8—Cl3 | 1.695 (2) |
C1—C2 | 1.554 (3) | C9—Cl4 | 1.689 (2) |
C1—Cl1 | 1.741 (2) | C10—Cl6 | 1.761 (2) |
C2—C3 | 1.508 (3) | C10—Cl5 | 1.763 (2) |
C2—C6 | 1.542 (3) | C11—N4 | 1.464 (3) |
C2—H2 | 0.9800 | C11—C12 | 1.496 (3) |
C3—O1 | 1.199 (3) | C11—H11A | 0.9700 |
C3—N4 | 1.388 (3) | C11—H11B | 0.9700 |
C5—O2 | 1.206 (3) | C12—C13 | 1.369 (3) |
C5—N4 | 1.374 (3) | C12—S | 1.714 (3) |
C5—C6 | 1.504 (3) | C13—C14 | 1.409 (4) |
C6—C7 | 1.558 (3) | C13—H13 | 0.9300 |
C6—H6 | 0.9800 | C14—C15 | 1.344 (4) |
C7—C8 | 1.516 (3) | C14—H14 | 0.9300 |
C7—C10 | 1.554 (3) | C15—S | 1.701 (3) |
C7—Cl2 | 1.749 (2) | C15—H15 | 0.9300 |
C9—C1—C10 | 99.40 (18) | C7—C8—Cl3 | 123.56 (17) |
C9—C1—C2 | 107.31 (18) | C8—C9—C1 | 107.72 (19) |
C10—C1—C2 | 100.37 (18) | C8—C9—Cl4 | 128.13 (19) |
C9—C1—Cl1 | 116.18 (16) | C1—C9—Cl4 | 123.74 (18) |
C10—C1—Cl1 | 116.20 (16) | C1—C10—C7 | 92.72 (17) |
C2—C1—Cl1 | 115.16 (16) | C1—C10—Cl6 | 114.06 (17) |
C3—C2—C6 | 104.81 (19) | C7—C10—Cl6 | 114.17 (17) |
C3—C2—C1 | 112.73 (19) | C1—C10—Cl5 | 113.56 (17) |
C6—C2—C1 | 103.33 (17) | C7—C10—Cl5 | 113.82 (16) |
C3—C2—H2 | 111.8 | Cl6—C10—Cl5 | 108.10 (12) |
C6—C2—H2 | 111.8 | N4—C11—C12 | 112.3 (2) |
C1—C2—H2 | 111.8 | N4—C11—H11A | 109.1 |
O1—C3—N4 | 124.3 (2) | C12—C11—H11A | 109.1 |
O1—C3—C2 | 127.9 (2) | N4—C11—H11B | 109.1 |
N4—C3—C2 | 107.8 (2) | C12—C11—H11B | 109.1 |
O2—C5—N4 | 124.2 (2) | H11A—C11—H11B | 107.9 |
O2—C5—C6 | 127.5 (2) | C13—C12—C11 | 127.5 (2) |
N4—C5—C6 | 108.2 (2) | C13—C12—S | 111.32 (19) |
C5—C6—C2 | 105.01 (19) | C11—C12—S | 121.1 (2) |
C5—C6—C7 | 113.76 (19) | C12—C13—C14 | 111.4 (2) |
C2—C6—C7 | 102.84 (18) | C12—C13—H13 | 124.3 |
C5—C6—H6 | 111.6 | C14—C13—H13 | 124.3 |
C2—C6—H6 | 111.6 | C15—C14—C13 | 114.0 (3) |
C7—C6—H6 | 111.6 | C15—C14—H14 | 123.0 |
C8—C7—C10 | 99.38 (18) | C13—C14—H14 | 123.0 |
C8—C7—C6 | 107.48 (18) | C14—C15—S | 111.3 (2) |
C10—C7—C6 | 100.44 (17) | C14—C15—H15 | 124.4 |
C8—C7—Cl2 | 115.70 (16) | S—C15—H15 | 124.4 |
C10—C7—Cl2 | 116.52 (16) | C5—N4—C3 | 114.1 (2) |
C6—C7—Cl2 | 115.18 (16) | C5—N4—C11 | 123.7 (2) |
C9—C8—C7 | 107.86 (19) | C3—N4—C11 | 122.2 (2) |
C9—C8—Cl3 | 128.35 (19) | C15—S—C12 | 91.96 (14) |
D—H···A | D—H | H···A | D···A | D—H···A |
C2—H2···O2i | 0.98 | 2.54 | 3.064 (3) | 113 |
C6—H6···O2i | 0.98 | 2.51 | 3.042 (3) | 114 |
Symmetry code: (i) y−1/4, −x+7/4, z−1/4. |
Experimental details
Crystal data | |
Chemical formula | C14H7Cl6NO2S |
Mr | 465.97 |
Crystal system, space group | Tetragonal, I41/a |
Temperature (K) | 293 |
a, c (Å) | 23.8136 (10), 12.6240 (9) |
V (Å3) | 7158.9 (7) |
Z | 16 |
Radiation type | Mo Kα |
µ (mm−1) | 1.08 |
Crystal size (mm) | 0.20 × 0.20 × 0.20 |
Data collection | |
Diffractometer | Oxford Diffraction Xcalibur Eos diffractometer |
Absorption correction | Multi-scan (CrysAlis PRO; Oxford Diffraction, 2010) |
Tmin, Tmax | 0.978, 0.984 |
No. of measured, independent and observed [I > 2σ(I)] reflections | 8488, 4156, 2283 |
Rint | 0.032 |
(sin θ/λ)max (Å−1) | 0.687 |
Refinement | |
R[F2 > 2σ(F2)], wR(F2), S | 0.037, 0.075, 0.82 |
No. of reflections | 4156 |
No. of parameters | 217 |
H-atom treatment | H-atom parameters constrained |
Δρmax, Δρmin (e Å−3) | 0.31, −0.31 |
Computer programs: CrysAlis PRO (Oxford Diffraction, 2010), SHELXS97 (Sheldrick, 2008), ORTEP-3 (Farrugia, 1997), SHELXL97 (Sheldrick, 2008) and PLATON (Spek, 2009).
D—H···A | D—H | H···A | D···A | D—H···A |
C2—H2···O2i | 0.98 | 2.54 | 3.064 (3) | 113.3 |
C6—H6···O2i | 0.98 | 2.51 | 3.042 (3) | 114.2 |
Symmetry code: (i) y−1/4, −x+7/4, z−1/4. |
Acknowledgements
CRR is grateful to the DST–FIST single-crystal X-ray facility of the Department of Chemistry, Pondicherry University, Pondicherry.
References
Duarte, F. S., Andrade, E. S., Vieira, R. A., Uieara, M., de Nunes, R. J. & Lima, T. C. M. (2006). Bioorg. Med. Chem. 14, 5397–5401. CrossRef CAS Google Scholar
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Azatricyclo dec-8-ene 3,5 dione derivatives have anti bacterial and anti fungal activities with other important biological activities (Stefańska et al., 2010).
In these structure, the six-membered ring of the norbornene moiety adopts a boat conformation whereas the two five-membered rings adopt envelope conformation.The fusion at atoms C6 and C2 is in cis conformation. The planarity around N4 and C3—N4 [1.38 (4) Å] and N4—C5 [1.38 (4) Å] reveals the partial double bond charater to facilitate the electron delocalization from one keto oxygen to other through N4. The crystal structure is stabilized by weak inter-molecular C-H···O interactions.