organic compounds
7H-Chromeno[3,2-h]quinolin-7-one methanol monosolvate
aKey Laboratory for the Chemistry & Molecular Engineering of Medicinal Resources, (Ministry of Education of China), School of Chemistry & Chemical Engineering, Guangxi Normal University, 541004 Guilin 541004, People's Republic of China, and bDepartment of Chemistry, University of Malaya, 50603 Kuala Lumpur, Malaysia
*Correspondence e-mail: seikweng@um.edu.my
The four-ring system in the title compound, C16H9NO2·CH3OH, is planar (r.m.s deviation = 0.03 Å); the methanol solvent molecule forms a hydrogen bond to the quinoline N atom.
Related literature
The compound in this study was synthesized from the cyclization of 2-(quinolin-8-yloxy)benzoic acid; for the synthesis of this acid, see: Chen et al. (2007). For the synthesis by the Skraup reaction of amino-9H-xanthene-9-one, see: Fujiwara & Okabayashi (1994).
Experimental
Crystal data
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Data collection
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Refinement
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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: X-SEED (Barbour, 2001); software used to prepare material for publication: publCIF (Westrip, 2009).
Supporting information
10.1107/S160053680903534X/xu2605sup1.cif
contains datablocks I, global. DOI:Structure factors: contains datablock I. DOI: 10.1107/S160053680903534X/xu2605Isup2.hkl
2-(Quinolin-8-yloxy)benzoic acid was synthesized by using a literature procedure (Chen et al., 2007). The carboxylic acid (0.5 g) and polyphosphoric acid (3.5 g) were heated at 413 K for two hours; the reaction was monitored by thin layer
The hot mixture was poured into ice water (200 ml); the pH value of the solution was adjusted to 7–8 by concentrated ammonium hydroxide. The crude product that precipitated was collected and recrystallized from methanol (in 0.39 g yield). The formulation was established by 1H NMR spectral integral analysis.Carbon- and oxygen-bound hydrogen atoms were generated geometrically and were constrained to ride on their parent atoms [C–H = 0.93–0.96, O–H 0.82 Å; Uiso(H) =1.2–1.5Ueq(C,O)].
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: X-SEED (Barbour, 2001); software used to prepare material for publication: publCIF (Westrip, 2009).Fig. 1. Thermal ellipsoid plot (Barbour, 2001) of C16H9NO2.CH4O at the 50% probability level; hydrogen atoms are drawn as sphere of arbitrary radius. The dashed line denotes a hydrogen bond. |
C16H9NO2·CH4O | Z = 2 |
Mr = 279.28 | F(000) = 292 |
Triclinic, P1 | Dx = 1.400 Mg m−3 |
Hall symbol: -P 1 | Mo Kα radiation, λ = 0.71073 Å |
a = 8.102 (2) Å | Cell parameters from 1000 reflections |
b = 8.791 (3) Å | θ = 2.2–26.5° |
c = 10.150 (3) Å | µ = 0.10 mm−1 |
α = 102.172 (3)° | T = 295 K |
β = 108.760 (3)° | Block, yellow |
γ = 93.532 (3)° | 0.41 × 0.30 × 0.18 mm |
V = 662.6 (3) Å3 |
Bruker APEXII diffractometer | 1456 reflections with I > 2σ(I) |
Radiation source: fine-focus sealed tube | Rint = 0.016 |
Graphite monochromator | θmax = 26.5°, θmin = 2.2° |
ϕ and ω scans | h = −10→10 |
3838 measured reflections | k = −9→11 |
2655 independent 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)] = 0.046 | Hydrogen site location: inferred from neighbouring sites |
wR(F2) = 0.147 | H-atom parameters constrained |
S = 1.02 | w = 1/[σ2(Fo2) + (0.0688P)2 + 0.0458P] where P = (Fo2 + 2Fc2)/3 |
2655 reflections | (Δ/σ)max = 0.001 |
192 parameters | Δρmax = 0.22 e Å−3 |
0 restraints | Δρmin = −0.15 e Å−3 |
C16H9NO2·CH4O | γ = 93.532 (3)° |
Mr = 279.28 | V = 662.6 (3) Å3 |
Triclinic, P1 | Z = 2 |
a = 8.102 (2) Å | Mo Kα radiation |
b = 8.791 (3) Å | µ = 0.10 mm−1 |
c = 10.150 (3) Å | T = 295 K |
α = 102.172 (3)° | 0.41 × 0.30 × 0.18 mm |
β = 108.760 (3)° |
Bruker APEXII diffractometer | 1456 reflections with I > 2σ(I) |
3838 measured reflections | Rint = 0.016 |
2655 independent reflections |
R[F2 > 2σ(F2)] = 0.046 | 0 restraints |
wR(F2) = 0.147 | H-atom parameters constrained |
S = 1.02 | Δρmax = 0.22 e Å−3 |
2655 reflections | Δρmin = −0.15 e Å−3 |
192 parameters |
x | y | z | Uiso*/Ueq | ||
O1 | 0.25297 (18) | 0.41753 (15) | 0.57244 (14) | 0.0387 (4) | |
O2 | 0.2583 (2) | 0.64419 (19) | 0.25985 (17) | 0.0601 (5) | |
O3 | 0.2226 (2) | 0.2382 (2) | 0.8300 (2) | 0.0735 (6) | |
H3 | 0.1946 | 0.3170 | 0.8021 | 0.110* | |
N1 | 0.1800 (2) | 0.5518 (2) | 0.80538 (18) | 0.0402 (5) | |
C1 | 0.2905 (3) | 0.3418 (2) | 0.4545 (2) | 0.0359 (5) | |
C2 | 0.3238 (3) | 0.1887 (3) | 0.4504 (2) | 0.0449 (6) | |
H2 | 0.3204 | 0.1427 | 0.5242 | 0.054* | |
C3 | 0.3619 (3) | 0.1058 (3) | 0.3359 (3) | 0.0506 (6) | |
H3a | 0.3839 | 0.0027 | 0.3318 | 0.061* | |
C4 | 0.3680 (3) | 0.1741 (3) | 0.2259 (3) | 0.0535 (6) | |
H4 | 0.3943 | 0.1169 | 0.1489 | 0.064* | |
C5 | 0.3353 (3) | 0.3254 (3) | 0.2310 (2) | 0.0475 (6) | |
H5 | 0.3398 | 0.3706 | 0.1570 | 0.057* | |
C6 | 0.2950 (3) | 0.4136 (2) | 0.3461 (2) | 0.0374 (5) | |
C7 | 0.2553 (3) | 0.5754 (2) | 0.3526 (2) | 0.0401 (5) | |
C8 | 0.2134 (2) | 0.6488 (2) | 0.4794 (2) | 0.0341 (5) | |
C9 | 0.1720 (3) | 0.8044 (2) | 0.4991 (2) | 0.0429 (6) | |
H9 | 0.1653 | 0.8579 | 0.4280 | 0.052* | |
C10 | 0.1423 (3) | 0.8764 (3) | 0.6186 (3) | 0.0445 (6) | |
H10 | 0.1182 | 0.9795 | 0.6301 | 0.053* | |
C11 | 0.1473 (3) | 0.7963 (2) | 0.7271 (2) | 0.0372 (5) | |
C12 | 0.1185 (3) | 0.8653 (3) | 0.8556 (3) | 0.0487 (6) | |
H12 | 0.0984 | 0.9694 | 0.8738 | 0.058* | |
C13 | 0.1204 (3) | 0.7792 (3) | 0.9517 (3) | 0.0521 (6) | |
H13 | 0.1023 | 0.8237 | 1.0367 | 0.063* | |
C14 | 0.1498 (3) | 0.6225 (3) | 0.9221 (2) | 0.0476 (6) | |
H14 | 0.1481 | 0.5646 | 0.9886 | 0.057* | |
C15 | 0.1802 (2) | 0.6383 (2) | 0.7082 (2) | 0.0341 (5) | |
C16 | 0.2159 (3) | 0.5678 (2) | 0.5817 (2) | 0.0326 (5) | |
C17 | 0.4047 (4) | 0.2427 (3) | 0.8712 (3) | 0.0733 (8) | |
H17A | 0.4457 | 0.2784 | 0.8026 | 0.110* | |
H17B | 0.4345 | 0.1394 | 0.8754 | 0.110* | |
H17C | 0.4594 | 0.3135 | 0.9641 | 0.110* |
U11 | U22 | U33 | U12 | U13 | U23 | |
O1 | 0.0529 (10) | 0.0317 (8) | 0.0361 (9) | 0.0084 (7) | 0.0207 (7) | 0.0087 (6) |
O2 | 0.0888 (13) | 0.0568 (11) | 0.0475 (10) | 0.0125 (9) | 0.0329 (10) | 0.0240 (8) |
O3 | 0.0733 (14) | 0.0473 (11) | 0.1034 (17) | 0.0123 (9) | 0.0283 (12) | 0.0276 (10) |
N1 | 0.0469 (11) | 0.0408 (11) | 0.0351 (11) | 0.0057 (8) | 0.0163 (9) | 0.0102 (8) |
C1 | 0.0344 (12) | 0.0363 (12) | 0.0334 (12) | 0.0019 (9) | 0.0112 (10) | 0.0025 (9) |
C2 | 0.0480 (14) | 0.0386 (13) | 0.0490 (14) | 0.0068 (10) | 0.0187 (12) | 0.0094 (11) |
C3 | 0.0538 (15) | 0.0383 (13) | 0.0572 (16) | 0.0093 (11) | 0.0207 (13) | 0.0025 (11) |
C4 | 0.0523 (16) | 0.0563 (16) | 0.0487 (16) | 0.0073 (12) | 0.0223 (13) | −0.0019 (12) |
C5 | 0.0496 (15) | 0.0523 (15) | 0.0401 (14) | 0.0034 (11) | 0.0183 (11) | 0.0067 (11) |
C6 | 0.0344 (12) | 0.0396 (12) | 0.0352 (13) | −0.0005 (9) | 0.0116 (10) | 0.0048 (10) |
C7 | 0.0407 (13) | 0.0429 (13) | 0.0345 (13) | −0.0020 (10) | 0.0108 (10) | 0.0103 (10) |
C8 | 0.0324 (12) | 0.0331 (11) | 0.0343 (12) | −0.0001 (9) | 0.0092 (10) | 0.0077 (9) |
C9 | 0.0492 (14) | 0.0376 (12) | 0.0457 (14) | 0.0065 (10) | 0.0169 (11) | 0.0168 (10) |
C10 | 0.0478 (14) | 0.0315 (12) | 0.0561 (15) | 0.0088 (10) | 0.0190 (12) | 0.0119 (11) |
C11 | 0.0330 (12) | 0.0337 (12) | 0.0412 (13) | 0.0023 (9) | 0.0113 (10) | 0.0039 (9) |
C12 | 0.0506 (15) | 0.0396 (13) | 0.0528 (15) | 0.0104 (11) | 0.0195 (12) | 0.0009 (11) |
C13 | 0.0600 (16) | 0.0543 (15) | 0.0422 (14) | 0.0091 (12) | 0.0243 (13) | 0.0010 (12) |
C14 | 0.0549 (15) | 0.0543 (15) | 0.0368 (13) | 0.0071 (12) | 0.0193 (12) | 0.0122 (11) |
C15 | 0.0305 (12) | 0.0351 (12) | 0.0342 (12) | 0.0012 (9) | 0.0087 (9) | 0.0081 (9) |
C16 | 0.0323 (12) | 0.0285 (11) | 0.0349 (12) | 0.0017 (9) | 0.0105 (9) | 0.0056 (9) |
C17 | 0.077 (2) | 0.080 (2) | 0.069 (2) | 0.0168 (16) | 0.0302 (17) | 0.0195 (16) |
O1—C16 | 1.363 (2) | C7—C8 | 1.466 (3) |
O1—C1 | 1.375 (2) | C8—C16 | 1.373 (3) |
O2—C7 | 1.227 (2) | C8—C9 | 1.417 (3) |
O3—C17 | 1.394 (3) | C9—C10 | 1.347 (3) |
O3—H3 | 0.8200 | C9—H9 | 0.9300 |
N1—C14 | 1.321 (3) | C10—C11 | 1.419 (3) |
N1—C15 | 1.367 (2) | C10—H10 | 0.9300 |
C1—C2 | 1.384 (3) | C11—C15 | 1.415 (3) |
C1—C6 | 1.388 (3) | C11—C12 | 1.415 (3) |
C2—C3 | 1.371 (3) | C12—C13 | 1.352 (3) |
C2—H2 | 0.9300 | C12—H12 | 0.9300 |
C3—C4 | 1.386 (3) | C13—C14 | 1.399 (3) |
C3—H3a | 0.9300 | C13—H13 | 0.9300 |
C4—C5 | 1.366 (3) | C14—H14 | 0.9300 |
C4—H4 | 0.9300 | C15—C16 | 1.429 (3) |
C5—C6 | 1.403 (3) | C17—H17A | 0.9600 |
C5—H5 | 0.9300 | C17—H17B | 0.9600 |
C6—C7 | 1.470 (3) | C17—H17C | 0.9600 |
C16—O1—C1 | 118.65 (15) | C8—C9—H9 | 119.3 |
C17—O3—H3 | 109.5 | C9—C10—C11 | 120.6 (2) |
C14—N1—C15 | 117.14 (18) | C9—C10—H10 | 119.7 |
O1—C1—C2 | 115.76 (18) | C11—C10—H10 | 119.7 |
O1—C1—C6 | 122.41 (18) | C15—C11—C12 | 116.89 (19) |
C2—C1—C6 | 121.82 (19) | C15—C11—C10 | 119.7 (2) |
C3—C2—C1 | 119.0 (2) | C12—C11—C10 | 123.4 (2) |
C3—C2—H2 | 120.5 | C13—C12—C11 | 119.7 (2) |
C1—C2—H2 | 120.5 | C13—C12—H12 | 120.2 |
C2—C3—C4 | 120.7 (2) | C11—C12—H12 | 120.2 |
C2—C3—H3a | 119.6 | C12—C13—C14 | 119.4 (2) |
C4—C3—H3a | 119.6 | C12—C13—H13 | 120.3 |
C5—C4—C3 | 119.9 (2) | C14—C13—H13 | 120.3 |
C5—C4—H4 | 120.0 | N1—C14—C13 | 123.9 (2) |
C3—C4—H4 | 120.0 | N1—C14—H14 | 118.0 |
C4—C5—C6 | 121.0 (2) | C13—C14—H14 | 118.0 |
C4—C5—H5 | 119.5 | N1—C15—C11 | 122.95 (19) |
C6—C5—H5 | 119.5 | N1—C15—C16 | 119.13 (18) |
C1—C6—C5 | 117.6 (2) | C11—C15—C16 | 117.92 (18) |
C1—C6—C7 | 120.34 (19) | O1—C16—C8 | 123.74 (18) |
C5—C6—C7 | 122.08 (19) | O1—C16—C15 | 115.04 (16) |
O2—C7—C8 | 122.5 (2) | C8—C16—C15 | 121.22 (18) |
O2—C7—C6 | 122.8 (2) | O3—C17—H17A | 109.5 |
C8—C7—C6 | 114.67 (18) | O3—C17—H17B | 109.5 |
C16—C8—C9 | 119.21 (19) | H17A—C17—H17B | 109.5 |
C16—C8—C7 | 120.17 (18) | O3—C17—H17C | 109.5 |
C9—C8—C7 | 120.62 (18) | H17A—C17—H17C | 109.5 |
C10—C9—C8 | 121.3 (2) | H17B—C17—H17C | 109.5 |
C10—C9—H9 | 119.3 | ||
C16—O1—C1—C2 | −178.86 (17) | C9—C10—C11—C15 | −1.3 (3) |
C16—O1—C1—C6 | 1.1 (3) | C9—C10—C11—C12 | 179.5 (2) |
O1—C1—C2—C3 | 179.87 (19) | C15—C11—C12—C13 | −1.1 (3) |
C6—C1—C2—C3 | −0.1 (3) | C10—C11—C12—C13 | 178.0 (2) |
C1—C2—C3—C4 | 0.3 (3) | C11—C12—C13—C14 | −0.4 (4) |
C2—C3—C4—C5 | −0.2 (4) | C15—N1—C14—C13 | −0.6 (3) |
C3—C4—C5—C6 | −0.1 (4) | C12—C13—C14—N1 | 1.4 (4) |
O1—C1—C6—C5 | 179.83 (19) | C14—N1—C15—C11 | −1.0 (3) |
C2—C1—C6—C5 | −0.2 (3) | C14—N1—C15—C16 | 178.70 (19) |
O1—C1—C6—C7 | −1.3 (3) | C12—C11—C15—N1 | 1.9 (3) |
C2—C1—C6—C7 | 178.69 (19) | C10—C11—C15—N1 | −177.29 (19) |
C4—C5—C6—C1 | 0.3 (3) | C12—C11—C15—C16 | −177.82 (18) |
C4—C5—C6—C7 | −178.6 (2) | C10—C11—C15—C16 | 3.0 (3) |
C1—C6—C7—O2 | 179.7 (2) | C1—O1—C16—C8 | 0.2 (3) |
C5—C6—C7—O2 | −1.5 (3) | C1—O1—C16—C15 | −179.36 (16) |
C1—C6—C7—C8 | 0.2 (3) | C9—C8—C16—O1 | 179.58 (18) |
C5—C6—C7—C8 | 179.03 (19) | C7—C8—C16—O1 | −1.2 (3) |
O2—C7—C8—C16 | −178.4 (2) | C9—C8—C16—C15 | −0.9 (3) |
C6—C7—C8—C16 | 1.0 (3) | C7—C8—C16—C15 | 178.25 (19) |
O2—C7—C8—C9 | 0.7 (3) | N1—C15—C16—O1 | −2.1 (3) |
C6—C7—C8—C9 | −179.84 (18) | C11—C15—C16—O1 | 177.68 (17) |
C16—C8—C9—C10 | 2.7 (3) | N1—C15—C16—C8 | 178.38 (18) |
C7—C8—C9—C10 | −176.5 (2) | C11—C15—C16—C8 | −1.9 (3) |
C8—C9—C10—C11 | −1.6 (3) |
Experimental details
Crystal data | |
Chemical formula | C16H9NO2·CH4O |
Mr | 279.28 |
Crystal system, space group | Triclinic, P1 |
Temperature (K) | 295 |
a, b, c (Å) | 8.102 (2), 8.791 (3), 10.150 (3) |
α, β, γ (°) | 102.172 (3), 108.760 (3), 93.532 (3) |
V (Å3) | 662.6 (3) |
Z | 2 |
Radiation type | Mo Kα |
µ (mm−1) | 0.10 |
Crystal size (mm) | 0.41 × 0.30 × 0.18 |
Data collection | |
Diffractometer | Bruker APEXII diffractometer |
Absorption correction | – |
No. of measured, independent and observed [I > 2σ(I)] reflections | 3838, 2655, 1456 |
Rint | 0.016 |
(sin θ/λ)max (Å−1) | 0.627 |
Refinement | |
R[F2 > 2σ(F2)], wR(F2), S | 0.046, 0.147, 1.02 |
No. of reflections | 2655 |
No. of parameters | 192 |
H-atom treatment | H-atom parameters constrained |
Δρmax, Δρmin (e Å−3) | 0.22, −0.15 |
Computer programs: APEX2 (Bruker, 2004), SAINT (Bruker, 2004), SHELXS97 (Sheldrick, 2008), SHELXL97 (Sheldrick, 2008), X-SEED (Barbour, 2001), publCIF (Westrip, 2009).
Acknowledgements
This work was supported by the Guangxi Natural Science Foundation (No.0639030), the Guangxi Normal University Foundation and the University of Malaya.
References
Barbour, L. J. (2001). J. Supramol. Chem. 1, 189–191. CrossRef CAS Google Scholar
Bruker (2004). APEX2 and SAINT. Bruker AXS inc., Madison, Wisconsin, USA. Google Scholar
Chen, Q., Qin, J.-K., Zeng, M.-H. & Ng, S. W. (2007). Acta Cryst. E63, o453–o454. Web of Science CSD CrossRef IUCr Journals Google Scholar
Fujiwara, H. & Okabayashi, I. (1994). Heterocycles, 38, 541–550. CrossRef CAS Google Scholar
Sheldrick, G. M. (2008). Acta Cryst. A64, 112–122. Web of Science CrossRef CAS IUCr Journals Google Scholar
Westrip, S. P. (2009). publCIF. In preparation. Google Scholar
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