Two independent molecules (
A and
B) comprise the asymmetric unit in the crystal structure of the title compound, C
11H
15NO
2. The cyclohexane ring adopts a boat configuration, as does the fused cyclohexene ring that bridges the cyclohexane ring. The crystal packing is stabilized by intermolecular O—H
O hydrogen bonding between the hydroxyl H atom of molecule
A and the ketone O atom of molecule
B and
vice versa. These link the molecules into chains running diagonally along the
bc face of the unit cell.
Supporting information
CCDC reference: 672838
Key indicators
- Single-crystal X-ray study
- T = 203 K
- Mean (C-C) = 0.002 Å
- R factor = 0.044
- wR factor = 0.084
- Data-to-parameter ratio = 24.8
checkCIF/PLATON results
No syntax errors found
Alert level B
PLAT026_ALERT_3_B Ratio Observed / Unique Reflections too Low .... 36 Perc.
Alert level C
GOODF01_ALERT_2_C The least squares goodness of fit parameter lies
outside the range 0.80 <> 2.00
Goodness of fit given = 0.730
PLAT720_ALERT_4_C Number of Unusual/Non-Standard Label(s) ........ 26
PLAT790_ALERT_4_C Centre of Gravity not Within Unit Cell: Resd. # 1
C11 H15 N O2
Alert level G
PLAT793_ALERT_1_G Check the Absolute Configuration of C2A = ... S
PLAT793_ALERT_1_G Check the Absolute Configuration of C2B = ... R
PLAT793_ALERT_1_G Check the Absolute Configuration of C3A = ... R
PLAT793_ALERT_1_G Check the Absolute Configuration of C3B = ... S
PLAT793_ALERT_1_G Check the Absolute Configuration of C6A = ... S
PLAT793_ALERT_1_G Check the Absolute Configuration of C6B = ... R
PLAT793_ALERT_1_G Check the Absolute Configuration of C7A = ... R
PLAT793_ALERT_1_G Check the Absolute Configuration of C7B = ... S
PLAT793_ALERT_1_G Check the Absolute Configuration of C8A = ... R
PLAT793_ALERT_1_G Check the Absolute Configuration of C8B = ... S
0 ALERT level A = In general: serious problem
1 ALERT level B = Potentially serious problem
3 ALERT level C = Check and explain
10 ALERT level G = General alerts; check
10 ALERT type 1 CIF construction/syntax error, inconsistent or missing data
1 ALERT type 2 Indicator that the structure model may be wrong or deficient
1 ALERT type 3 Indicator that the structure quality may be low
2 ALERT type 4 Improvement, methodology, query or suggestion
0 ALERT type 5 Informative message, check
4-Methyl-4-aza-tricyclo[5.2.2.0,2,6]undec-8-ene-3,5-dione (0.50 g), produced
from the Diels–Alder synthesis of N-methyl maleimide and 1,3
cyclohexadiene, was dissolved in THF (30 ml) under nitrogen in an ice bath.
DIBAL-H, (5.2 ml) was added dropwise for 5 min and allowed to stir for 3 h.
The reaction was then stopped. The product was extracted using ethyl acetate
and washed 3x with sat. NaHCO3. This was dried over MgSO4 to yield 0.29 g
of product. Crystals were obtained from the slow evaporation of methanol
solution of (I).
The hydroxyl hydrogen atoms (H2AA & H2BA) were located in a difference Fourier
map and along with all other H atoms were placed in their calculated positions
and were then refined using the riding model approximation with O—H = 0.83 Å and C—H = 0.94 - 0.99 Å, and with Uiso(H) =
1.2–1.5Ueq(C, O).
Data collection: CrysAlis PRO (Oxford Diffraction, 2007); cell refinement: CrysAlis PRO (Oxford Diffraction, 2007); data reduction: CrysAlis RED (Oxford Diffraction, 2007); program(s) used to solve structure: SHELXS97 (Sheldrick, 1997); program(s) used to refine structure: SHELXL97 (Sheldrick, 1997); molecular graphics: WinGX (Farrugia, 1999); software used to prepare material for publication: WinGX (Farrugia, 1999).
5-Hydroxy-4-methyl-4-azatricyclo[5.2.2.0
2,6]undec-8-en-3-one
top
Crystal data top
C11H15NO2 | Z = 4 |
Mr = 193.24 | F(000) = 416 |
Triclinic, P1 | Dx = 1.302 Mg m−3 |
Hall symbol: -P 1 | Mo Kα radiation, λ = 0.71073 Å |
a = 9.0426 (10) Å | Cell parameters from 2564 reflections |
b = 9.409 (3) Å | θ = 4.8–32.4° |
c = 12.260 (3) Å | µ = 0.09 mm−1 |
α = 108.89 (2)° | T = 203 K |
β = 91.454 (13)° | Chunk, colourless |
γ = 91.817 (16)° | 0.55 × 0.46 × 0.36 mm |
V = 985.8 (4) Å3 | |
Data collection top
Oxford Diffraction Gemini R CCD diffractometer | 2308 reflections with I > 2σ(I) |
Radiation source: fine-focus sealed tube | Rint = 0.048 |
Graphite monochromator | θmax = 32.5°, θmin = 4.8° |
Detector resolution: 10.5081 pixels mm-1 | h = −13→12 |
ϕ and ω scans | k = −13→13 |
12514 measured reflections | l = −18→18 |
6368 independent reflections | |
Refinement top
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)] = 0.044 | Hydrogen site location: inferred from neighbouring sites |
wR(F2) = 0.084 | H-atom parameters constrained |
S = 0.73 | w = 1/[σ2(Fo2) + (0.0322P)2] where P = (Fo2 + 2Fc2)/3 |
6368 reflections | (Δ/σ)max = 0.007 |
257 parameters | Δρmax = 0.22 e Å−3 |
0 restraints | Δρmin = −0.19 e Å−3 |
Crystal data top
C11H15NO2 | γ = 91.817 (16)° |
Mr = 193.24 | V = 985.8 (4) Å3 |
Triclinic, P1 | Z = 4 |
a = 9.0426 (10) Å | Mo Kα radiation |
b = 9.409 (3) Å | µ = 0.09 mm−1 |
c = 12.260 (3) Å | T = 203 K |
α = 108.89 (2)° | 0.55 × 0.46 × 0.36 mm |
β = 91.454 (13)° | |
Data collection top
Oxford Diffraction Gemini R CCD diffractometer | 2308 reflections with I > 2σ(I) |
12514 measured reflections | Rint = 0.048 |
6368 independent reflections | |
Refinement top
R[F2 > 2σ(F2)] = 0.044 | 0 restraints |
wR(F2) = 0.084 | H-atom parameters constrained |
S = 0.73 | Δρmax = 0.22 e Å−3 |
6368 reflections | Δρmin = −0.19 e Å−3 |
257 parameters | |
Special details top
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. |
Fractional atomic coordinates and isotropic or equivalent isotropic displacement parameters (Å2) top | x | y | z | Uiso*/Ueq | |
O1A | 0.16069 (9) | 0.52439 (10) | 0.07775 (8) | 0.0314 (2) | |
O2A | 0.36646 (9) | 0.25659 (10) | −0.24154 (8) | 0.0366 (3) | |
H2AA | 0.3548 | 0.1782 | −0.2974 | 0.055* | |
O1B | 0.33481 (10) | 1.00085 (10) | 0.57185 (8) | 0.0333 (2) | |
O2B | 0.12572 (10) | 0.80442 (10) | 0.22133 (9) | 0.0387 (3) | |
H2BA | 0.1357 | 0.7174 | 0.1777 | 0.058* | |
N1A | 0.20075 (11) | 0.34330 (12) | −0.09313 (9) | 0.0276 (3) | |
N1B | 0.28780 (11) | 0.85683 (12) | 0.38432 (10) | 0.0284 (3) | |
C1A | 0.18021 (13) | 0.48518 (14) | −0.02746 (12) | 0.0247 (3) | |
C2A | 0.18082 (14) | 0.58569 (14) | −0.10129 (11) | 0.0267 (3) | |
H2AB | 0.0796 | 0.6204 | −0.1068 | 0.032* | |
C3A | 0.28881 (15) | 0.72297 (14) | −0.05591 (12) | 0.0308 (3) | |
H3AA | 0.2615 | 0.7893 | 0.0210 | 0.037* | |
C4A | 0.28725 (17) | 0.80663 (16) | −0.14502 (13) | 0.0406 (4) | |
H4AA | 0.1869 | 0.8383 | −0.1546 | 0.049* | |
H4AB | 0.3532 | 0.8967 | −0.1177 | 0.049* | |
C5A | 0.33856 (17) | 0.70269 (16) | −0.26115 (13) | 0.0411 (4) | |
H5AA | 0.4280 | 0.7467 | −0.2831 | 0.049* | |
H5AB | 0.2612 | 0.6912 | −0.3212 | 0.049* | |
C6A | 0.37122 (15) | 0.54791 (15) | −0.25038 (12) | 0.0333 (4) | |
H6AA | 0.4094 | 0.4802 | −0.3230 | 0.040* | |
C7A | 0.22374 (14) | 0.48369 (14) | −0.22132 (11) | 0.0268 (3) | |
H7AA | 0.1461 | 0.4857 | −0.2792 | 0.032* | |
C8A | 0.22836 (14) | 0.32299 (14) | −0.21366 (12) | 0.0282 (3) | |
H8AA | 0.1485 | 0.2580 | −0.2639 | 0.034* | |
C9A | 0.18835 (15) | 0.21534 (15) | −0.05272 (13) | 0.0356 (4) | |
H9AA | 0.1873 | 0.2500 | 0.0309 | 0.053* | |
H9AB | 0.2721 | 0.1525 | −0.0777 | 0.053* | |
H9AC | 0.0973 | 0.1577 | −0.0842 | 0.053* | |
C10A | 0.48098 (15) | 0.57138 (15) | −0.15213 (14) | 0.0351 (4) | |
H10A | 0.5724 | 0.5249 | −0.1612 | 0.042* | |
C11A | 0.43988 (15) | 0.66246 (15) | −0.05131 (13) | 0.0343 (4) | |
H11A | 0.4996 | 0.6869 | 0.0166 | 0.041* | |
C1B | 0.31536 (14) | 0.98754 (14) | 0.46820 (12) | 0.0257 (3) | |
C2B | 0.32041 (15) | 1.11280 (14) | 0.41787 (11) | 0.0282 (3) | |
H2BB | 0.4225 | 1.1572 | 0.4259 | 0.034* | |
C3B | 0.21215 (15) | 1.23657 (14) | 0.47498 (12) | 0.0319 (4) | |
H3BA | 0.2370 | 1.2838 | 0.5583 | 0.038* | |
C4B | 0.22084 (17) | 1.35259 (16) | 0.41135 (13) | 0.0416 (4) | |
H4BA | 0.3224 | 1.3945 | 0.4170 | 0.050* | |
H4BB | 0.1559 | 1.4351 | 0.4469 | 0.050* | |
C5B | 0.17286 (18) | 1.27657 (16) | 0.28377 (13) | 0.0438 (4) | |
H5BA | 0.2532 | 1.2868 | 0.2343 | 0.053* | |
H5BB | 0.0863 | 1.3252 | 0.2646 | 0.053* | |
C6B | 0.13431 (15) | 1.10831 (15) | 0.26263 (13) | 0.0362 (4) | |
H6BA | 0.0980 | 1.0575 | 0.1821 | 0.043* | |
C7B | 0.27679 (14) | 1.03841 (15) | 0.28943 (12) | 0.0299 (3) | |
H7BA | 0.3570 | 1.0593 | 0.2426 | 0.036* | |
C8B | 0.26488 (15) | 0.86870 (15) | 0.26949 (12) | 0.0297 (3) | |
H8BA | 0.3442 | 0.8178 | 0.2189 | 0.036* | |
C9B | 0.28810 (16) | 0.71219 (15) | 0.40165 (14) | 0.0382 (4) | |
H9BA | 0.2857 | 0.7261 | 0.4835 | 0.057* | |
H9BB | 0.3771 | 0.6615 | 0.3707 | 0.057* | |
H9BC | 0.2017 | 0.6518 | 0.3624 | 0.057* | |
C10B | 0.01956 (16) | 1.09860 (15) | 0.34593 (15) | 0.0379 (4) | |
H10B | −0.0733 | 1.0489 | 0.3223 | 0.045* | |
C11B | 0.05950 (16) | 1.16562 (15) | 0.45542 (14) | 0.0368 (4) | |
H11B | −0.0030 | 1.1684 | 0.5161 | 0.044* | |
Atomic displacement parameters (Å2) top | U11 | U22 | U33 | U12 | U13 | U23 |
O1A | 0.0365 (6) | 0.0309 (5) | 0.0230 (6) | −0.0003 (4) | 0.0021 (5) | 0.0035 (4) |
O2A | 0.0326 (6) | 0.0336 (6) | 0.0340 (7) | 0.0079 (4) | 0.0020 (5) | −0.0032 (5) |
O1B | 0.0431 (6) | 0.0312 (6) | 0.0239 (6) | 0.0069 (4) | −0.0006 (5) | 0.0063 (4) |
O2B | 0.0352 (6) | 0.0305 (6) | 0.0381 (7) | 0.0002 (4) | −0.0047 (5) | −0.0053 (5) |
N1A | 0.0320 (7) | 0.0217 (6) | 0.0265 (7) | 0.0021 (5) | 0.0005 (5) | 0.0043 (5) |
N1B | 0.0332 (7) | 0.0240 (6) | 0.0250 (7) | 0.0014 (5) | 0.0023 (6) | 0.0037 (6) |
C1A | 0.0184 (7) | 0.0268 (8) | 0.0262 (8) | −0.0002 (6) | −0.0007 (6) | 0.0050 (7) |
C2A | 0.0236 (7) | 0.0258 (7) | 0.0292 (9) | 0.0055 (6) | 0.0002 (6) | 0.0068 (7) |
C3A | 0.0400 (9) | 0.0239 (8) | 0.0261 (8) | −0.0020 (7) | 0.0042 (7) | 0.0047 (6) |
C4A | 0.0484 (10) | 0.0314 (8) | 0.0471 (11) | 0.0024 (7) | 0.0038 (8) | 0.0194 (8) |
C5A | 0.0447 (9) | 0.0449 (10) | 0.0402 (10) | −0.0012 (8) | 0.0016 (8) | 0.0233 (8) |
C6A | 0.0316 (8) | 0.0345 (8) | 0.0304 (9) | 0.0042 (7) | 0.0042 (7) | 0.0052 (7) |
C7A | 0.0241 (7) | 0.0294 (8) | 0.0234 (8) | 0.0021 (6) | −0.0033 (6) | 0.0038 (6) |
C8A | 0.0267 (8) | 0.0286 (8) | 0.0245 (8) | 0.0006 (6) | 0.0003 (6) | 0.0019 (6) |
C9A | 0.0397 (9) | 0.0277 (8) | 0.0384 (9) | −0.0026 (6) | −0.0002 (7) | 0.0101 (7) |
C10A | 0.0266 (8) | 0.0352 (8) | 0.0457 (10) | −0.0025 (7) | 0.0038 (7) | 0.0164 (8) |
C11A | 0.0304 (8) | 0.0329 (8) | 0.0387 (10) | −0.0094 (7) | −0.0071 (7) | 0.0123 (8) |
C1B | 0.0232 (8) | 0.0266 (8) | 0.0260 (9) | 0.0042 (6) | 0.0025 (6) | 0.0066 (7) |
C2B | 0.0274 (8) | 0.0261 (8) | 0.0284 (9) | −0.0022 (6) | −0.0022 (6) | 0.0057 (6) |
C3B | 0.0487 (9) | 0.0241 (8) | 0.0227 (8) | 0.0040 (7) | −0.0008 (7) | 0.0074 (6) |
C4B | 0.0537 (10) | 0.0295 (8) | 0.0440 (10) | −0.0007 (7) | −0.0017 (8) | 0.0158 (8) |
C5B | 0.0539 (10) | 0.0421 (10) | 0.0425 (11) | −0.0025 (8) | −0.0015 (8) | 0.0244 (8) |
C6B | 0.0401 (9) | 0.0369 (9) | 0.0304 (9) | −0.0030 (7) | −0.0084 (7) | 0.0103 (7) |
C7B | 0.0268 (8) | 0.0374 (8) | 0.0253 (8) | −0.0019 (6) | 0.0035 (6) | 0.0102 (7) |
C8B | 0.0250 (8) | 0.0346 (8) | 0.0249 (9) | 0.0008 (6) | 0.0014 (7) | 0.0031 (7) |
C9B | 0.0466 (9) | 0.0234 (8) | 0.0445 (10) | 0.0050 (7) | 0.0067 (8) | 0.0104 (7) |
C10B | 0.0294 (8) | 0.0297 (8) | 0.0555 (12) | 0.0025 (7) | −0.0028 (8) | 0.0154 (8) |
C11B | 0.0376 (9) | 0.0323 (8) | 0.0482 (11) | 0.0119 (7) | 0.0179 (8) | 0.0216 (8) |
Geometric parameters (Å, º) top
O1A—C1A | 1.2404 (15) | C9A—H9AA | 0.9700 |
O2A—C8A | 1.4140 (14) | C9A—H9AB | 0.9700 |
O2A—H2AA | 0.8300 | C9A—H9AC | 0.9700 |
O1B—C1B | 1.2432 (15) | C10A—C11A | 1.3259 (19) |
O2B—C8B | 1.4073 (16) | C10A—H10A | 0.9400 |
O2B—H2BA | 0.8300 | C11A—H11A | 0.9400 |
N1A—C1A | 1.3387 (16) | C1B—C2B | 1.4970 (19) |
N1A—C9A | 1.4451 (17) | C2B—C7B | 1.5370 (19) |
N1A—C8A | 1.4565 (16) | C2B—C3B | 1.5440 (17) |
N1B—C1B | 1.3345 (17) | C2B—H2BB | 0.9900 |
N1B—C9B | 1.4438 (17) | C3B—C11B | 1.493 (2) |
N1B—C8B | 1.4581 (17) | C3B—C4B | 1.5347 (19) |
C1A—C2A | 1.5060 (19) | C3B—H3BA | 0.9900 |
C2A—C3A | 1.5358 (19) | C4B—C5B | 1.539 (2) |
C2A—C7A | 1.5412 (17) | C4B—H4BA | 0.9800 |
C2A—H2AB | 0.9900 | C4B—H4BB | 0.9800 |
C3A—C11A | 1.5031 (18) | C5B—C6B | 1.546 (2) |
C3A—C4A | 1.5396 (19) | C5B—H5BA | 0.9800 |
C3A—H3AA | 0.9900 | C5B—H5BB | 0.9800 |
C4A—C5A | 1.5361 (19) | C6B—C10B | 1.4954 (19) |
C4A—H4AA | 0.9800 | C6B—C7B | 1.5404 (19) |
C4A—H4AB | 0.9800 | C6B—H6BA | 0.9900 |
C5A—C6A | 1.5413 (19) | C7B—C8B | 1.5350 (19) |
C5A—H5AA | 0.9800 | C7B—H7BA | 0.9900 |
C5A—H5AB | 0.9800 | C8B—H8BA | 0.9900 |
C6A—C10A | 1.496 (2) | C9B—H9BA | 0.9700 |
C6A—C7A | 1.5436 (18) | C9B—H9BB | 0.9700 |
C6A—H6AA | 0.9900 | C9B—H9BC | 0.9700 |
C7A—C8A | 1.5468 (18) | C10B—C11B | 1.320 (2) |
C7A—H7AA | 0.9900 | C10B—H10B | 0.9400 |
C8A—H8AA | 0.9900 | C11B—H11B | 0.9400 |
| | | |
C8A—O2A—H2AA | 109.5 | C6A—C10A—H10A | 122.4 |
C8B—O2B—H2BA | 109.5 | C10A—C11A—C3A | 113.66 (14) |
C1A—N1A—C9A | 124.14 (11) | C10A—C11A—H11A | 123.2 |
C1A—N1A—C8A | 115.08 (11) | C3A—C11A—H11A | 123.2 |
C9A—N1A—C8A | 120.68 (11) | O1B—C1B—N1B | 124.37 (13) |
C1B—N1B—C9B | 123.98 (12) | O1B—C1B—C2B | 126.00 (13) |
C1B—N1B—C8B | 114.83 (12) | N1B—C1B—C2B | 109.63 (12) |
C9B—N1B—C8B | 121.10 (11) | C1B—C2B—C7B | 105.14 (11) |
O1A—C1A—N1A | 124.04 (13) | C1B—C2B—C3B | 112.38 (10) |
O1A—C1A—C2A | 126.28 (12) | C7B—C2B—C3B | 110.17 (11) |
N1A—C1A—C2A | 109.67 (12) | C1B—C2B—H2BB | 109.7 |
C1A—C2A—C3A | 113.55 (12) | C7B—C2B—H2BB | 109.7 |
C1A—C2A—C7A | 104.81 (10) | C3B—C2B—H2BB | 109.7 |
C3A—C2A—C7A | 110.95 (10) | C11B—C3B—C4B | 108.09 (12) |
C1A—C2A—H2AB | 109.1 | C11B—C3B—C2B | 107.59 (11) |
C3A—C2A—H2AB | 109.1 | C4B—C3B—C2B | 107.31 (11) |
C7A—C2A—H2AB | 109.1 | C11B—C3B—H3BA | 111.2 |
C11A—C3A—C2A | 106.35 (10) | C4B—C3B—H3BA | 111.2 |
C11A—C3A—C4A | 108.68 (11) | C2B—C3B—H3BA | 111.2 |
C2A—C3A—C4A | 107.56 (12) | C3B—C4B—C5B | 109.51 (12) |
C11A—C3A—H3AA | 111.3 | C3B—C4B—H4BA | 109.8 |
C2A—C3A—H3AA | 111.3 | C5B—C4B—H4BA | 109.8 |
C4A—C3A—H3AA | 111.3 | C3B—C4B—H4BB | 109.8 |
C5A—C4A—C3A | 109.68 (11) | C5B—C4B—H4BB | 109.8 |
C5A—C4A—H4AA | 109.7 | H4BA—C4B—H4BB | 108.2 |
C3A—C4A—H4AA | 109.7 | C4B—C5B—C6B | 109.16 (12) |
C5A—C4A—H4AB | 109.7 | C4B—C5B—H5BA | 109.8 |
C3A—C4A—H4AB | 109.7 | C6B—C5B—H5BA | 109.8 |
H4AA—C4A—H4AB | 108.2 | C4B—C5B—H5BB | 109.8 |
C4A—C5A—C6A | 109.33 (11) | C6B—C5B—H5BB | 109.8 |
C4A—C5A—H5AA | 109.8 | H5BA—C5B—H5BB | 108.3 |
C6A—C5A—H5AA | 109.8 | C10B—C6B—C7B | 109.17 (12) |
C4A—C5A—H5AB | 109.8 | C10B—C6B—C5B | 107.80 (11) |
C6A—C5A—H5AB | 109.8 | C7B—C6B—C5B | 106.82 (12) |
H5AA—C5A—H5AB | 108.3 | C10B—C6B—H6BA | 111.0 |
C10A—C6A—C5A | 108.20 (12) | C7B—C6B—H6BA | 111.0 |
C10A—C6A—C7A | 109.15 (12) | C5B—C6B—H6BA | 111.0 |
C5A—C6A—C7A | 106.43 (10) | C8B—C7B—C2B | 105.91 (11) |
C10A—C6A—H6AA | 111.0 | C8B—C7B—C6B | 115.58 (11) |
C5A—C6A—H6AA | 111.0 | C2B—C7B—C6B | 108.49 (10) |
C7A—C6A—H6AA | 111.0 | C8B—C7B—H7BA | 108.9 |
C2A—C7A—C6A | 107.76 (11) | C2B—C7B—H7BA | 108.9 |
C2A—C7A—C8A | 106.03 (10) | C6B—C7B—H7BA | 108.9 |
C6A—C7A—C8A | 115.39 (10) | O2B—C8B—N1B | 110.62 (11) |
C2A—C7A—H7AA | 109.2 | O2B—C8B—C7B | 112.23 (11) |
C6A—C7A—H7AA | 109.2 | N1B—C8B—C7B | 104.12 (11) |
C8A—C7A—H7AA | 109.2 | O2B—C8B—H8BA | 109.9 |
O2A—C8A—N1A | 109.21 (11) | N1B—C8B—H8BA | 109.9 |
O2A—C8A—C7A | 113.56 (10) | C7B—C8B—H8BA | 109.9 |
N1A—C8A—C7A | 103.97 (10) | N1B—C9B—H9BA | 109.5 |
O2A—C8A—H8AA | 110.0 | N1B—C9B—H9BB | 109.5 |
N1A—C8A—H8AA | 110.0 | H9BA—C9B—H9BB | 109.5 |
C7A—C8A—H8AA | 110.0 | N1B—C9B—H9BC | 109.5 |
N1A—C9A—H9AA | 109.5 | H9BA—C9B—H9BC | 109.5 |
N1A—C9A—H9AB | 109.5 | H9BB—C9B—H9BC | 109.5 |
H9AA—C9A—H9AB | 109.5 | C11B—C10B—C6B | 114.46 (14) |
N1A—C9A—H9AC | 109.5 | C11B—C10B—H10B | 122.8 |
H9AA—C9A—H9AC | 109.5 | C6B—C10B—H10B | 122.8 |
H9AB—C9A—H9AC | 109.5 | C10B—C11B—C3B | 114.51 (13) |
C11A—C10A—C6A | 115.14 (12) | C10B—C11B—H11B | 122.7 |
C11A—C10A—H10A | 122.4 | C3B—C11B—H11B | 122.7 |
| | | |
C9A—N1A—C1A—O1A | 6.4 (2) | C9B—N1B—C1B—O1B | −4.9 (2) |
C8A—N1A—C1A—O1A | −177.31 (11) | C8B—N1B—C1B—O1B | 178.45 (11) |
C9A—N1A—C1A—C2A | −172.17 (11) | C9B—N1B—C1B—C2B | 174.51 (11) |
C8A—N1A—C1A—C2A | 4.11 (15) | C8B—N1B—C1B—C2B | −2.10 (14) |
O1A—C1A—C2A—C3A | 53.72 (16) | O1B—C1B—C2B—C7B | −175.46 (12) |
N1A—C1A—C2A—C3A | −127.73 (11) | N1B—C1B—C2B—C7B | 5.11 (13) |
O1A—C1A—C2A—C7A | 174.97 (12) | O1B—C1B—C2B—C3B | −55.60 (17) |
N1A—C1A—C2A—C7A | −6.48 (14) | N1B—C1B—C2B—C3B | 124.96 (12) |
C1A—C2A—C3A—C11A | 58.84 (13) | C1B—C2B—C3B—C11B | −60.52 (15) |
C7A—C2A—C3A—C11A | −58.90 (14) | C7B—C2B—C3B—C11B | 56.37 (14) |
C1A—C2A—C3A—C4A | 175.14 (10) | C1B—C2B—C3B—C4B | −176.62 (12) |
C7A—C2A—C3A—C4A | 57.39 (13) | C7B—C2B—C3B—C4B | −59.73 (14) |
C11A—C3A—C4A—C5A | 53.87 (15) | C11B—C3B—C4B—C5B | −54.41 (15) |
C2A—C3A—C4A—C5A | −60.89 (14) | C2B—C3B—C4B—C5B | 61.36 (15) |
C3A—C4A—C5A—C6A | 1.25 (16) | C3B—C4B—C5B—C6B | −0.81 (16) |
C4A—C5A—C6A—C10A | −55.20 (14) | C4B—C5B—C6B—C10B | 55.33 (15) |
C4A—C5A—C6A—C7A | 62.00 (15) | C4B—C5B—C6B—C7B | −61.89 (14) |
C1A—C2A—C7A—C6A | −117.75 (12) | C1B—C2B—C7B—C8B | −6.01 (13) |
C3A—C2A—C7A—C6A | 5.20 (14) | C3B—C2B—C7B—C8B | −127.31 (11) |
C1A—C2A—C7A—C8A | 6.34 (13) | C1B—C2B—C7B—C6B | 118.66 (11) |
C3A—C2A—C7A—C8A | 129.29 (11) | C3B—C2B—C7B—C6B | −2.65 (15) |
C10A—C6A—C7A—C2A | 51.26 (14) | C10B—C6B—C7B—C8B | 65.93 (15) |
C5A—C6A—C7A—C2A | −65.30 (14) | C5B—C6B—C7B—C8B | −177.76 (11) |
C10A—C6A—C7A—C8A | −66.97 (14) | C10B—C6B—C7B—C2B | −52.80 (15) |
C5A—C6A—C7A—C8A | 176.47 (12) | C5B—C6B—C7B—C2B | 63.52 (14) |
C1A—N1A—C8A—O2A | 121.68 (11) | C1B—N1B—C8B—O2B | −122.62 (12) |
C9A—N1A—C8A—O2A | −61.90 (15) | C9B—N1B—C8B—O2B | 60.66 (14) |
C1A—N1A—C8A—C7A | 0.15 (14) | C1B—N1B—C8B—C7B | −1.86 (14) |
C9A—N1A—C8A—C7A | 176.57 (11) | C9B—N1B—C8B—C7B | −178.57 (10) |
C2A—C7A—C8A—O2A | −122.74 (11) | C2B—C7B—C8B—O2B | 124.52 (11) |
C6A—C7A—C8A—O2A | −3.56 (16) | C6B—C7B—C8B—O2B | 4.39 (16) |
C2A—C7A—C8A—N1A | −4.16 (13) | C2B—C7B—C8B—N1B | 4.85 (13) |
C6A—C7A—C8A—N1A | 115.02 (12) | C6B—C7B—C8B—N1B | −115.29 (12) |
C5A—C6A—C10A—C11A | 57.17 (15) | C7B—C6B—C10B—C11B | 58.18 (15) |
C7A—C6A—C10A—C11A | −58.26 (15) | C5B—C6B—C10B—C11B | −57.51 (16) |
C6A—C10A—C11A—C3A | 0.68 (17) | C6B—C10B—C11B—C3B | −0.69 (17) |
C2A—C3A—C11A—C10A | 57.79 (15) | C4B—C3B—C11B—C10B | 58.48 (15) |
C4A—C3A—C11A—C10A | −57.75 (15) | C2B—C3B—C11B—C10B | −57.10 (15) |
Hydrogen-bond geometry (Å, º) top
D—H···A | D—H | H···A | D···A | D—H···A |
O2A—H2AA···O1Bi | 0.83 | 1.90 | 2.7322 (16) | 178 |
O2B—H2BA···O1A | 0.83 | 1.86 | 2.6868 (16) | 179 |
Symmetry code: (i) x, y−1, z−1. |
Experimental details
Crystal data |
Chemical formula | C11H15NO2 |
Mr | 193.24 |
Crystal system, space group | Triclinic, P1 |
Temperature (K) | 203 |
a, b, c (Å) | 9.0426 (10), 9.409 (3), 12.260 (3) |
α, β, γ (°) | 108.89 (2), 91.454 (13), 91.817 (16) |
V (Å3) | 985.8 (4) |
Z | 4 |
Radiation type | Mo Kα |
µ (mm−1) | 0.09 |
Crystal size (mm) | 0.55 × 0.46 × 0.36 |
|
Data collection |
Diffractometer | Oxford Diffraction Gemini R CCD diffractometer |
Absorption correction | – |
No. of measured, independent and observed [I > 2σ(I)] reflections | 12514, 6368, 2308 |
Rint | 0.048 |
(sin θ/λ)max (Å−1) | 0.756 |
|
Refinement |
R[F2 > 2σ(F2)], wR(F2), S | 0.044, 0.084, 0.73 |
No. of reflections | 6368 |
No. of parameters | 257 |
H-atom treatment | H-atom parameters constrained |
Δρmax, Δρmin (e Å−3) | 0.22, −0.19 |
Hydrogen-bond geometry (Å, º) top
D—H···A | D—H | H···A | D···A | D—H···A |
O2A—H2AA···O1Bi | 0.83 | 1.90 | 2.7322 (16) | 178 |
O2B—H2BA···O1A | 0.83 | 1.86 | 2.6868 (16) | 179 |
Symmetry code: (i) x, y−1, z−1. |
5-Hydroxy-4-methyl-4-aza-tricyclo[5.2.2.0,2,6]undecan-3-one was synthesized to determine whether the cyclic imide functionality can be reduced from 4-methyl-4-aza-tricyclo[5.2.2.0,2,6]undec-8-ene-3,5-dione (Birney et al., 2002) to a functionalized pyrrole using diisobutylaluminium hydride (DIBAL-H). This reaction was carried out to determine if a stepwise reduction of a cyclic imide into a pyrrole could use DIBAL-H instead of a more complex synthetic process (Stephan et al., 1988). These pyrrole derivatives are used in a number of materials, especially intramolecularly hydrogen-bonded conjugated polymers (Pollack et al., 1997). They are also used in the protonation and subsequent intramolecular hydrogen bonding as a method to control chain structure and to tune luminescence in heteroatomic conjugated polymers (Monkman et al., 2002). A new pyrrole derivative (I), C11H15NO2, was prepared and its crystal structure is reported herein.
Compound (I) crystallizes with two independent molecules (A & B) in the asymmetric unit (Fig. 1). The angle between the mean planes of cyclohexane and fused 4-methyl-4-aza-tricyclo-3-one group is 23.5 (4) ° [A] and 25.1 (2)° [B]. The cyclohexane ring is in a boat configuration with puckering parameters Q, θ and ϕ of 0.8771 (15) Å, 91.61 (10)° and 63.05 (10)°, respectively for C2A—C7A in A, and 0.8784 (16) Å, 90.79 (10)° and 61.45 (10)°, respectively for C2B—C7B in B (Cremer & Pople, 1975). The bridged, 6-membered [5.2.2.0,2,6] group is also in a boat configuration with puckering parameters Q, θ and ϕ of 0.7885 (16) Å, 90.14 (12)° and 358.87 (12)° for C3A–C6A,C10A,C11A in A; 0.7959 (16) Å, 90.24 (12)° and 359.24 (12)° for C3B—C6B,C10B,C11B in B. The crystal packing is stabilized by intermolecular O—H···O hydrogen bonding (Table 1) between the hydroxyl hydrogen atom of molecule A [O2A–H2AA] to the ketone oxygen atom of molecule B [O1B] and vice versa, which link the molecules into chains diagonal along the bc face of the unit cell (Fig. 2).