organic compounds
(2E)-3-(4-Ethoxyphenyl)-1-(2-methyl-4-phenylquinolin-3-yl)prop-2-en-1-one monohydrate
aOrganic Chemistry Division, School of Advanced Sciences, VIT University, India, bMaterials Research Centre, Indian Institute of Science, Bengaluru-560012, India, and cDepartment of Chemistry, University of Malaya, 50603 Kuala Lumpur, Malaysia
*Correspondence e-mail: edward.tiekink@gmail.com
The title hydrate, C27H23NO2·H2O, features an almost planar quinoline residue (r.m.s. deviation = 0.015 Å) with the benzene [dihedral angle = 63.80 (7) °] and chalcone [C—C—C—O torsion angle = −103.38 (18)°] substituents twisted significantly out of its plane. The configuration about the C=C bond [1.340 (2) Å] is E. In the crystal, molecules related by the 21 are linked along the b axis via water molecules that form O—H⋯Oc and O—H⋯Nq hydrogen bonds (c = carbonyl and q = quinoline). A C—H⋯O interaction also occurs.
Related literature
For background to et al. (1988); Schröder & Schröder (1990). For a related structure, see: Prasath et al. (2010).
see: SchröderExperimental
Crystal data
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Refinement
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Data collection: SMART (Bruker, 2001); cell SAINT (Bruker, 2001); data reduction: SAINT; program(s) used to solve structure: SHELXS97 (Sheldrick, 2008); program(s) used to refine structure: SHELXL97 (Sheldrick, 2008); molecular graphics: ORTEP-3 (Farrugia, 1997) and DIAMOND (Brandenburg, 2006); software used to prepare material for publication: publCIF (Westrip, 2010).
Supporting information
https://doi.org/10.1107/S1600536810048026/hb5746sup1.cif
contains datablocks global, I. DOI:Structure factors: contains datablock I. DOI: https://doi.org/10.1107/S1600536810048026/hb5746Isup2.hkl
A mixture of 3-acetyl-2-methyl-4-phenylquinoline (2.6 g 0.01 M) and 4-ethoxybenzaldehyde (1.5 g 0.01 M) and a catalytic amount of KOH in distilled ethanol (50 ml) was stirred for about 24 h. The resulting mixture was concentrated to remove ethanol then poured onto ice and neutralized with dilute acetic acid. The resultant solid was filtered off, dried and purified by
using a 1:1 mixture of ethyl acetate and petroleum ether. Recrystallization was from acetone to yield colourless blocks; Yield: 64% and m. pt: 427–429 K.The C-bound H atoms were geometrically placed (C–H = 0.93–0.97 Å) and refined as riding with Uiso(H) = 1.2–1.5Ueq(C). The remaining H were located from a difference map and refined with O–H = 0.82±0.01 Å (with H1w···H2w = 1.36±0.015 Å), and with Uiso(H) = 1.5Ueq(O).
Chalcones are open-chain
in which two aromatic rings, jointed by a three carbon linker, are synthesized by chalcone synthetase from 3-malonyl-CoA and a starter CoA ester such as 4-coumaronyl-CoA in plants (Schröder et al., 1988). Chalcone synthetase functions as a key enzyme of flavonoid biosynthesis, using the similar substrates as stilbene synthetase (Schröder & Schröder, 1990). The title hydrate, (I), was investigated in continuation of structural studies of (Prasath et al., 2010).With reference to least-squares plane through the quinoline residue in (I), Fig. 1, the phenyl ring is twisted and forms a dihedral angle of 63.80 (7) ° with it. Similarly, the chalcone residue is also twisted out of the plane as seen in the value of the C1—C2—C17—O1 torsion angle of -103.38 (18) °. There are discernible twists in the chalcone residue as seen in the value of the O1—C17—C18—C19 torsion angle of 6.8 (3) ° and especially C18—C19—C20—C21 of -168.50 (16) °. The configuration about the C18═ C19 bond [1.340 (2) Å] is E. The ethoxy group is lies in the plane of the benzene ring to which it is connected [C26—O2—C23—C22 = -3.7 (3) ° and C23—O2—C26—C27 = -178.30 (17) °].
The crystal packing is dominated by hydrogen bonds formed by the water molecule of crystallization. Thus, the carbonyl-O1 of one molecule is linked to a quinoline-N of another via O—H···O and O—H···N hydrogen bonds, Table 1. This results in the formation of a supramolecular chain with a helical topology along the b axis, Fig. 2. Chains are consolidated in the crystal packing by C—H···O contacts, Table 1.
For background to
see: Schröder et al. (1988); Schröder & Schröder (1990). For a related structure, see: Prasath et al. (2010).Data collection: SMART (Bruker, 2001); cell
SAINT (Bruker, 2001); data reduction: SAINT (Bruker, 2001); program(s) used to solve structure: SHELXS97 (Sheldrick, 2008); program(s) used to refine structure: SHELXL97 (Sheldrick, 2008); molecular graphics: ORTEP-3 (Farrugia, 1997) and DIAMOND (Brandenburg, 2006); software used to prepare material for publication: publCIF (Westrip, 2010).C27H23NO2·H2O | F(000) = 872 |
Mr = 411.48 | Dx = 1.254 Mg m−3 |
Monoclinic, P21/c | Mo Kα radiation, λ = 0.71073 Å |
Hall symbol: -P 2ybc | Cell parameters from 9513 reflections |
a = 17.4256 (4) Å | θ = 2.2–29.5° |
b = 7.6240 (2) Å | µ = 0.08 mm−1 |
c = 18.4117 (4) Å | T = 293 K |
β = 116.957 (1)° | Block, colourless |
V = 2180.27 (9) Å3 | 0.37 × 0.24 × 0.15 mm |
Z = 4 |
Bruker SMART APEX CCD diffractometer | 4993 independent reflections |
Radiation source: fine-focus sealed tube | 3568 reflections with I > 2σ(I) |
Graphite monochromator | Rint = 0.033 |
ω scans | θmax = 27.5°, θmin = 2.2° |
Absorption correction: multi-scan (SADABS; Bruker, 1998) | h = −22→22 |
Tmin = 0.977, Tmax = 0.988 | k = −9→8 |
29183 measured reflections | l = −18→23 |
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)] = 0.050 | Hydrogen site location: inferred from neighbouring sites |
wR(F2) = 0.146 | H atoms treated by a mixture of independent and constrained refinement |
S = 1.05 | w = 1/[σ2(Fo2) + (0.065P)2 + 0.6319P] where P = (Fo2 + 2Fc2)/3 |
4993 reflections | (Δ/σ)max = 0.001 |
288 parameters | Δρmax = 0.25 e Å−3 |
3 restraints | Δρmin = −0.19 e Å−3 |
C27H23NO2·H2O | V = 2180.27 (9) Å3 |
Mr = 411.48 | Z = 4 |
Monoclinic, P21/c | Mo Kα radiation |
a = 17.4256 (4) Å | µ = 0.08 mm−1 |
b = 7.6240 (2) Å | T = 293 K |
c = 18.4117 (4) Å | 0.37 × 0.24 × 0.15 mm |
β = 116.957 (1)° |
Bruker SMART APEX CCD diffractometer | 4993 independent reflections |
Absorption correction: multi-scan (SADABS; Bruker, 1998) | 3568 reflections with I > 2σ(I) |
Tmin = 0.977, Tmax = 0.988 | Rint = 0.033 |
29183 measured reflections |
R[F2 > 2σ(F2)] = 0.050 | 3 restraints |
wR(F2) = 0.146 | H atoms treated by a mixture of independent and constrained refinement |
S = 1.05 | Δρmax = 0.25 e Å−3 |
4993 reflections | Δρmin = −0.19 e Å−3 |
288 parameters |
Geometry. All s.u.'s (except the s.u. in the dihedral angle between two l.s. planes) are estimated using the full covariance matrix. The cell s.u.'s are taken into account individually in the estimation of s.u.'s in distances, angles and torsion angles; correlations between s.u.'s in cell parameters are only used when they are defined by crystal symmetry. An approximate (isotropic) treatment of cell s.u.'s is used for estimating s.u.'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 > 2σ(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 | 0.25716 (8) | 0.36751 (17) | 0.84346 (7) | 0.0543 (3) | |
O2 | 0.50345 (8) | −0.52976 (18) | 1.12587 (8) | 0.0590 (4) | |
N1 | −0.02026 (8) | 0.1867 (2) | 0.72578 (8) | 0.0466 (4) | |
C1 | 0.06079 (10) | 0.1951 (2) | 0.78155 (10) | 0.0414 (4) | |
C2 | 0.12999 (10) | 0.2106 (2) | 0.76061 (9) | 0.0366 (3) | |
C3 | 0.11343 (10) | 0.2195 (2) | 0.67992 (9) | 0.0362 (3) | |
C4 | 0.02593 (10) | 0.2109 (2) | 0.61876 (9) | 0.0392 (4) | |
C5 | 0.00012 (12) | 0.2155 (2) | 0.53384 (10) | 0.0500 (4) | |
H5 | 0.0416 | 0.2274 | 0.5155 | 0.060* | |
C6 | −0.08461 (13) | 0.2026 (3) | 0.47860 (11) | 0.0593 (5) | |
H6 | −0.1004 | 0.2067 | 0.4231 | 0.071* | |
C7 | −0.14798 (13) | 0.1831 (3) | 0.50494 (12) | 0.0631 (6) | |
H7 | −0.2055 | 0.1736 | 0.4668 | 0.076* | |
C8 | −0.12593 (12) | 0.1781 (3) | 0.58612 (12) | 0.0574 (5) | |
H8 | −0.1685 | 0.1649 | 0.6030 | 0.069* | |
C9 | −0.03862 (10) | 0.1928 (2) | 0.64478 (10) | 0.0431 (4) | |
C10 | 0.07655 (12) | 0.1904 (3) | 0.86890 (11) | 0.0568 (5) | |
H10A | 0.0225 | 0.1970 | 0.8709 | 0.085* | |
H10B | 0.1120 | 0.2881 | 0.8978 | 0.085* | |
H10C | 0.1052 | 0.0830 | 0.8937 | 0.085* | |
C11 | 0.18529 (10) | 0.2312 (2) | 0.65688 (9) | 0.0377 (4) | |
C12 | 0.19313 (12) | 0.3754 (3) | 0.61469 (10) | 0.0498 (4) | |
H12 | 0.1537 | 0.4668 | 0.6010 | 0.060* | |
C13 | 0.25941 (13) | 0.3837 (3) | 0.59282 (12) | 0.0581 (5) | |
H13 | 0.2642 | 0.4809 | 0.5646 | 0.070* | |
C14 | 0.31808 (12) | 0.2493 (3) | 0.61263 (11) | 0.0546 (5) | |
H14 | 0.3622 | 0.2550 | 0.5975 | 0.066* | |
C15 | 0.31119 (12) | 0.1063 (3) | 0.65488 (11) | 0.0526 (5) | |
H15 | 0.3512 | 0.0160 | 0.6688 | 0.063* | |
C16 | 0.24500 (11) | 0.0957 (2) | 0.67697 (10) | 0.0449 (4) | |
H16 | 0.2406 | −0.0018 | 0.7052 | 0.054* | |
C17 | 0.22121 (10) | 0.2250 (2) | 0.82790 (9) | 0.0378 (4) | |
C18 | 0.26143 (10) | 0.0642 (2) | 0.87161 (9) | 0.0434 (4) | |
H18 | 0.2325 | −0.0415 | 0.8527 | 0.052* | |
C19 | 0.33811 (10) | 0.0620 (2) | 0.93782 (9) | 0.0401 (4) | |
H19 | 0.3659 | 0.1694 | 0.9546 | 0.048* | |
C20 | 0.38267 (9) | −0.0908 (2) | 0.98645 (9) | 0.0375 (4) | |
C21 | 0.45460 (10) | −0.0704 (2) | 1.06181 (10) | 0.0460 (4) | |
H21 | 0.4748 | 0.0422 | 1.0799 | 0.055* | |
C22 | 0.49672 (11) | −0.2115 (2) | 1.11034 (10) | 0.0481 (4) | |
H22 | 0.5440 | −0.1938 | 1.1607 | 0.058* | |
C23 | 0.46812 (10) | −0.3798 (2) | 1.08362 (10) | 0.0449 (4) | |
C24 | 0.39746 (11) | −0.4039 (3) | 1.00726 (11) | 0.0519 (4) | |
H24 | 0.3786 | −0.5167 | 0.9885 | 0.062* | |
C25 | 0.35586 (10) | −0.2621 (2) | 0.95986 (10) | 0.0452 (4) | |
H25 | 0.3090 | −0.2801 | 0.9092 | 0.054* | |
C26 | 0.57919 (12) | −0.5162 (3) | 1.20221 (12) | 0.0619 (5) | |
H26A | 0.5673 | −0.4477 | 1.2403 | 0.074* | |
H26B | 0.6249 | −0.4589 | 1.1948 | 0.074* | |
C27 | 0.60576 (15) | −0.6989 (3) | 1.23413 (14) | 0.0752 (7) | |
H27A | 0.5606 | −0.7532 | 1.2424 | 0.113* | |
H27B | 0.6573 | −0.6941 | 1.2850 | 0.113* | |
H27C | 0.6163 | −0.7660 | 1.1955 | 0.113* | |
O1W | 0.17008 (10) | 0.6955 (2) | 0.74149 (10) | 0.0673 (4) | |
H1W | 0.1271 (11) | 0.701 (3) | 0.7493 (17) | 0.101* | |
H2W | 0.1963 (15) | 0.603 (2) | 0.7613 (16) | 0.101* |
U11 | U22 | U33 | U12 | U13 | U23 | |
O1 | 0.0495 (7) | 0.0459 (8) | 0.0520 (7) | −0.0053 (6) | 0.0095 (6) | 0.0020 (6) |
O2 | 0.0491 (7) | 0.0527 (8) | 0.0566 (8) | 0.0010 (6) | 0.0077 (6) | 0.0129 (6) |
N1 | 0.0380 (7) | 0.0570 (10) | 0.0438 (8) | 0.0002 (7) | 0.0177 (6) | −0.0018 (6) |
C1 | 0.0407 (9) | 0.0450 (10) | 0.0373 (8) | 0.0005 (7) | 0.0166 (7) | 0.0011 (7) |
C2 | 0.0360 (8) | 0.0368 (9) | 0.0333 (7) | 0.0022 (7) | 0.0123 (6) | 0.0023 (6) |
C3 | 0.0364 (8) | 0.0338 (8) | 0.0340 (7) | 0.0034 (7) | 0.0120 (6) | 0.0023 (6) |
C4 | 0.0394 (8) | 0.0370 (9) | 0.0350 (8) | 0.0070 (7) | 0.0114 (6) | 0.0013 (6) |
C5 | 0.0513 (10) | 0.0555 (11) | 0.0359 (8) | 0.0077 (9) | 0.0133 (7) | 0.0014 (8) |
C6 | 0.0595 (12) | 0.0641 (13) | 0.0357 (9) | 0.0115 (10) | 0.0053 (8) | −0.0015 (8) |
C7 | 0.0447 (10) | 0.0689 (14) | 0.0505 (11) | 0.0075 (10) | −0.0003 (8) | −0.0081 (10) |
C8 | 0.0376 (9) | 0.0669 (13) | 0.0578 (11) | 0.0040 (9) | 0.0131 (8) | −0.0063 (9) |
C9 | 0.0373 (8) | 0.0435 (10) | 0.0411 (8) | 0.0036 (7) | 0.0113 (7) | −0.0020 (7) |
C10 | 0.0536 (11) | 0.0788 (14) | 0.0414 (9) | −0.0015 (10) | 0.0247 (8) | 0.0011 (9) |
C11 | 0.0375 (8) | 0.0431 (9) | 0.0300 (7) | 0.0014 (7) | 0.0131 (6) | −0.0005 (6) |
C12 | 0.0551 (10) | 0.0485 (11) | 0.0487 (9) | 0.0076 (9) | 0.0260 (8) | 0.0079 (8) |
C13 | 0.0704 (13) | 0.0584 (12) | 0.0568 (11) | −0.0030 (10) | 0.0385 (10) | 0.0072 (9) |
C14 | 0.0504 (10) | 0.0673 (13) | 0.0540 (10) | −0.0019 (9) | 0.0305 (9) | −0.0012 (9) |
C15 | 0.0483 (10) | 0.0583 (12) | 0.0533 (10) | 0.0091 (9) | 0.0249 (8) | 0.0023 (9) |
C16 | 0.0473 (9) | 0.0460 (10) | 0.0414 (8) | 0.0039 (8) | 0.0201 (7) | 0.0030 (7) |
C17 | 0.0365 (8) | 0.0434 (10) | 0.0315 (7) | −0.0022 (7) | 0.0137 (6) | 0.0000 (6) |
C18 | 0.0396 (9) | 0.0433 (10) | 0.0401 (8) | −0.0018 (7) | 0.0117 (7) | 0.0023 (7) |
C19 | 0.0386 (8) | 0.0429 (9) | 0.0374 (8) | −0.0005 (7) | 0.0162 (7) | −0.0025 (7) |
C20 | 0.0315 (7) | 0.0447 (9) | 0.0347 (7) | 0.0003 (7) | 0.0135 (6) | −0.0008 (6) |
C21 | 0.0390 (9) | 0.0470 (10) | 0.0422 (9) | −0.0037 (8) | 0.0097 (7) | −0.0062 (7) |
C22 | 0.0356 (8) | 0.0574 (12) | 0.0385 (8) | −0.0015 (8) | 0.0056 (7) | −0.0011 (8) |
C23 | 0.0363 (8) | 0.0500 (11) | 0.0446 (9) | 0.0040 (8) | 0.0151 (7) | 0.0097 (8) |
C24 | 0.0460 (10) | 0.0439 (10) | 0.0512 (10) | −0.0048 (8) | 0.0093 (8) | 0.0008 (8) |
C25 | 0.0350 (8) | 0.0509 (11) | 0.0384 (8) | −0.0032 (7) | 0.0067 (7) | −0.0016 (7) |
C26 | 0.0471 (10) | 0.0639 (13) | 0.0558 (11) | 0.0048 (10) | 0.0067 (8) | 0.0130 (10) |
C27 | 0.0647 (13) | 0.0706 (16) | 0.0712 (14) | 0.0141 (12) | 0.0139 (11) | 0.0229 (12) |
O1W | 0.0615 (9) | 0.0736 (11) | 0.0734 (10) | −0.0010 (8) | 0.0363 (8) | 0.0040 (8) |
O1—C17 | 1.222 (2) | C13—H13 | 0.9300 |
O2—C23 | 1.363 (2) | C14—C15 | 1.375 (3) |
O2—C26 | 1.430 (2) | C14—H14 | 0.9300 |
N1—C1 | 1.318 (2) | C15—C16 | 1.388 (2) |
N1—C9 | 1.377 (2) | C15—H15 | 0.9300 |
C1—C2 | 1.428 (2) | C16—H16 | 0.9300 |
C1—C10 | 1.504 (2) | C17—C18 | 1.460 (2) |
C2—C3 | 1.381 (2) | C18—C19 | 1.340 (2) |
C2—C17 | 1.513 (2) | C18—H18 | 0.9300 |
C3—C4 | 1.428 (2) | C19—C20 | 1.460 (2) |
C3—C11 | 1.496 (2) | C19—H19 | 0.9300 |
C4—C9 | 1.415 (2) | C20—C21 | 1.394 (2) |
C4—C5 | 1.418 (2) | C20—C25 | 1.398 (2) |
C5—C6 | 1.365 (3) | C21—C22 | 1.379 (2) |
C5—H5 | 0.9300 | C21—H21 | 0.9300 |
C6—C7 | 1.401 (3) | C22—C23 | 1.383 (3) |
C6—H6 | 0.9300 | C22—H22 | 0.9300 |
C7—C8 | 1.365 (3) | C23—C24 | 1.399 (2) |
C7—H7 | 0.9300 | C24—C25 | 1.372 (2) |
C8—C9 | 1.416 (2) | C24—H24 | 0.9300 |
C8—H8 | 0.9300 | C25—H25 | 0.9300 |
C10—H10A | 0.9600 | C26—C27 | 1.501 (3) |
C10—H10B | 0.9600 | C26—H26A | 0.9700 |
C10—H10C | 0.9600 | C26—H26B | 0.9700 |
C11—C12 | 1.388 (2) | C27—H27A | 0.9600 |
C11—C16 | 1.392 (2) | C27—H27B | 0.9600 |
C12—C13 | 1.386 (3) | C27—H27C | 0.9600 |
C12—H12 | 0.9300 | O1W—H1W | 0.83 (2) |
C13—C14 | 1.375 (3) | O1W—H2W | 0.83 (2) |
C23—O2—C26 | 118.49 (15) | C14—C15—C16 | 120.59 (17) |
C1—N1—C9 | 118.87 (14) | C14—C15—H15 | 119.7 |
N1—C1—C2 | 122.10 (14) | C16—C15—H15 | 119.7 |
N1—C1—C10 | 116.33 (15) | C15—C16—C11 | 119.96 (16) |
C2—C1—C10 | 121.56 (14) | C15—C16—H16 | 120.0 |
C3—C2—C1 | 120.30 (14) | C11—C16—H16 | 120.0 |
C3—C2—C17 | 120.48 (14) | O1—C17—C18 | 123.42 (14) |
C1—C2—C17 | 119.18 (13) | O1—C17—C2 | 119.56 (14) |
C2—C3—C4 | 118.28 (14) | C18—C17—C2 | 117.02 (14) |
C2—C3—C11 | 120.97 (13) | C19—C18—C17 | 122.91 (16) |
C4—C3—C11 | 120.72 (13) | C19—C18—H18 | 118.5 |
C9—C4—C5 | 118.18 (15) | C17—C18—H18 | 118.5 |
C9—C4—C3 | 117.77 (14) | C18—C19—C20 | 126.98 (16) |
C5—C4—C3 | 124.04 (15) | C18—C19—H19 | 116.5 |
C6—C5—C4 | 121.01 (18) | C20—C19—H19 | 116.5 |
C6—C5—H5 | 119.5 | C21—C20—C25 | 117.36 (15) |
C4—C5—H5 | 119.5 | C21—C20—C19 | 120.63 (15) |
C5—C6—C7 | 120.40 (17) | C25—C20—C19 | 122.01 (14) |
C5—C6—H6 | 119.8 | C22—C21—C20 | 122.15 (16) |
C7—C6—H6 | 119.8 | C22—C21—H21 | 118.9 |
C8—C7—C6 | 120.50 (17) | C20—C21—H21 | 118.9 |
C8—C7—H7 | 119.8 | C21—C22—C23 | 119.56 (15) |
C6—C7—H7 | 119.8 | C21—C22—H22 | 120.2 |
C7—C8—C9 | 120.31 (18) | C23—C22—H22 | 120.2 |
C7—C8—H8 | 119.8 | O2—C23—C22 | 125.33 (15) |
C9—C8—H8 | 119.8 | O2—C23—C24 | 115.31 (16) |
N1—C9—C4 | 122.67 (14) | C22—C23—C24 | 119.35 (15) |
N1—C9—C8 | 117.72 (16) | C25—C24—C23 | 120.42 (17) |
C4—C9—C8 | 119.60 (16) | C25—C24—H24 | 119.8 |
C1—C10—H10A | 109.5 | C23—C24—H24 | 119.8 |
C1—C10—H10B | 109.5 | C24—C25—C20 | 121.12 (15) |
H10A—C10—H10B | 109.5 | C24—C25—H25 | 119.4 |
C1—C10—H10C | 109.5 | C20—C25—H25 | 119.4 |
H10A—C10—H10C | 109.5 | O2—C26—C27 | 107.53 (18) |
H10B—C10—H10C | 109.5 | O2—C26—H26A | 110.2 |
C12—C11—C16 | 119.01 (15) | C27—C26—H26A | 110.2 |
C12—C11—C3 | 120.88 (15) | O2—C26—H26B | 110.2 |
C16—C11—C3 | 120.11 (14) | C27—C26—H26B | 110.2 |
C13—C12—C11 | 120.36 (17) | H26A—C26—H26B | 108.5 |
C13—C12—H12 | 119.8 | C26—C27—H27A | 109.5 |
C11—C12—H12 | 119.8 | C26—C27—H27B | 109.5 |
C14—C13—C12 | 120.38 (18) | H27A—C27—H27B | 109.5 |
C14—C13—H13 | 119.8 | C26—C27—H27C | 109.5 |
C12—C13—H13 | 119.8 | H27A—C27—H27C | 109.5 |
C13—C14—C15 | 119.71 (17) | H27B—C27—H27C | 109.5 |
C13—C14—H14 | 120.1 | H1W—O1W—H2W | 109.0 (18) |
C15—C14—H14 | 120.1 | ||
C9—N1—C1—C2 | 0.1 (3) | C16—C11—C12—C13 | 0.1 (3) |
C9—N1—C1—C10 | 179.15 (16) | C3—C11—C12—C13 | −179.23 (16) |
N1—C1—C2—C3 | 0.8 (3) | C11—C12—C13—C14 | 0.0 (3) |
C10—C1—C2—C3 | −178.20 (17) | C12—C13—C14—C15 | −0.5 (3) |
N1—C1—C2—C17 | 178.19 (15) | C13—C14—C15—C16 | 0.7 (3) |
C10—C1—C2—C17 | −0.8 (2) | C14—C15—C16—C11 | −0.5 (3) |
C1—C2—C3—C4 | −0.7 (2) | C12—C11—C16—C15 | 0.1 (2) |
C17—C2—C3—C4 | −178.00 (14) | C3—C11—C16—C15 | 179.46 (15) |
C1—C2—C3—C11 | −178.44 (15) | C3—C2—C17—O1 | 74.0 (2) |
C17—C2—C3—C11 | 4.2 (2) | C1—C2—C17—O1 | −103.38 (18) |
C2—C3—C4—C9 | −0.3 (2) | C3—C2—C17—C18 | −106.50 (18) |
C11—C3—C4—C9 | 177.47 (15) | C1—C2—C17—C18 | 76.12 (19) |
C2—C3—C4—C5 | −178.84 (16) | O1—C17—C18—C19 | 6.8 (3) |
C11—C3—C4—C5 | −1.1 (2) | C2—C17—C18—C19 | −172.70 (15) |
C9—C4—C5—C6 | −0.1 (3) | C17—C18—C19—C20 | 178.70 (15) |
C3—C4—C5—C6 | 178.44 (17) | C18—C19—C20—C21 | −168.50 (16) |
C4—C5—C6—C7 | −0.5 (3) | C18—C19—C20—C25 | 11.8 (3) |
C5—C6—C7—C8 | 0.5 (3) | C25—C20—C21—C22 | −2.2 (3) |
C6—C7—C8—C9 | 0.1 (3) | C19—C20—C21—C22 | 178.11 (16) |
C1—N1—C9—C4 | −1.1 (3) | C20—C21—C22—C23 | 1.0 (3) |
C1—N1—C9—C8 | 178.07 (17) | C26—O2—C23—C22 | −3.7 (3) |
C5—C4—C9—N1 | 179.87 (16) | C26—O2—C23—C24 | 176.17 (16) |
C3—C4—C9—N1 | 1.3 (2) | C21—C22—C23—O2 | −179.40 (17) |
C5—C4—C9—C8 | 0.7 (2) | C21—C22—C23—C24 | 0.8 (3) |
C3—C4—C9—C8 | −177.95 (16) | O2—C23—C24—C25 | 178.97 (16) |
C7—C8—C9—N1 | −179.94 (19) | C22—C23—C24—C25 | −1.2 (3) |
C7—C8—C9—C4 | −0.7 (3) | C23—C24—C25—C20 | −0.1 (3) |
C2—C3—C11—C12 | −118.53 (18) | C21—C20—C25—C24 | 1.7 (3) |
C4—C3—C11—C12 | 63.7 (2) | C19—C20—C25—C24 | −178.55 (16) |
C2—C3—C11—C16 | 62.1 (2) | C23—O2—C26—C27 | −178.30 (17) |
C4—C3—C11—C16 | −115.62 (17) |
D—H···A | D—H | H···A | D···A | D—H···A |
O1w—H1w···N1i | 0.83 (2) | 2.11 (2) | 2.934 (2) | 174 (2) |
O1w—H2w···O1 | 0.83 (2) | 2.28 (2) | 3.082 (2) | 164 (3) |
C26—H26b···O1ii | 0.97 | 2.55 | 3.507 (3) | 167 |
Symmetry codes: (i) −x, y+1/2, −z+3/2; (ii) −x+1, −y, −z+2. |
Experimental details
Crystal data | |
Chemical formula | C27H23NO2·H2O |
Mr | 411.48 |
Crystal system, space group | Monoclinic, P21/c |
Temperature (K) | 293 |
a, b, c (Å) | 17.4256 (4), 7.6240 (2), 18.4117 (4) |
β (°) | 116.957 (1) |
V (Å3) | 2180.27 (9) |
Z | 4 |
Radiation type | Mo Kα |
µ (mm−1) | 0.08 |
Crystal size (mm) | 0.37 × 0.24 × 0.15 |
Data collection | |
Diffractometer | Bruker SMART APEX CCD |
Absorption correction | Multi-scan (SADABS; Bruker, 1998) |
Tmin, Tmax | 0.977, 0.988 |
No. of measured, independent and observed [I > 2σ(I)] reflections | 29183, 4993, 3568 |
Rint | 0.033 |
(sin θ/λ)max (Å−1) | 0.650 |
Refinement | |
R[F2 > 2σ(F2)], wR(F2), S | 0.050, 0.146, 1.05 |
No. of reflections | 4993 |
No. of parameters | 288 |
No. of restraints | 3 |
H-atom treatment | H atoms treated by a mixture of independent and constrained refinement |
Δρmax, Δρmin (e Å−3) | 0.25, −0.19 |
Computer programs: SMART (Bruker, 2001), SAINT (Bruker, 2001), SHELXS97 (Sheldrick, 2008), SHELXL97 (Sheldrick, 2008), ORTEP-3 (Farrugia, 1997) and DIAMOND (Brandenburg, 2006), publCIF (Westrip, 2010).
D—H···A | D—H | H···A | D···A | D—H···A |
O1w—H1w···N1i | 0.83 (2) | 2.11 (2) | 2.934 (2) | 174 (2) |
O1w—H2w···O1 | 0.83 (2) | 2.28 (2) | 3.082 (2) | 164 (3) |
C26—H26b···O1ii | 0.97 | 2.55 | 3.507 (3) | 167 |
Symmetry codes: (i) −x, y+1/2, −z+3/2; (ii) −x+1, −y, −z+2. |
Footnotes
‡Additional correspondence author, e-mail: kvpsvijayakumar@gmail.com.
Acknowledgements
VV is grateful to the DST-India for funding through the Young Scientist Scheme (Fast Track Proposal). TN acknowledges the use of the X-ray CCD facility at the Indian Institute of Science, Bangalore, set up under the IRHPA DST programme.
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.
Chalcones are open-chain flavonoids in which two aromatic rings, jointed by a three carbon linker, are synthesized by chalcone synthetase from 3-malonyl-CoA and a starter CoA ester such as 4-coumaronyl-CoA in plants (Schröder et al., 1988). Chalcone synthetase functions as a key enzyme of flavonoid biosynthesis, using the similar substrates as stilbene synthetase (Schröder & Schröder, 1990). The title hydrate, (I), was investigated in continuation of structural studies of chalcones (Prasath et al., 2010).
With reference to least-squares plane through the quinoline residue in (I), Fig. 1, the phenyl ring is twisted and forms a dihedral angle of 63.80 (7) ° with it. Similarly, the chalcone residue is also twisted out of the plane as seen in the value of the C1—C2—C17—O1 torsion angle of -103.38 (18) °. There are discernible twists in the chalcone residue as seen in the value of the O1—C17—C18—C19 torsion angle of 6.8 (3) ° and especially C18—C19—C20—C21 of -168.50 (16) °. The configuration about the C18═ C19 bond [1.340 (2) Å] is E. The ethoxy group is lies in the plane of the benzene ring to which it is connected [C26—O2—C23—C22 = -3.7 (3) ° and C23—O2—C26—C27 = -178.30 (17) °].
The crystal packing is dominated by hydrogen bonds formed by the water molecule of crystallization. Thus, the carbonyl-O1 of one molecule is linked to a quinoline-N of another via O—H···O and O—H···N hydrogen bonds, Table 1. This results in the formation of a supramolecular chain with a helical topology along the b axis, Fig. 2. Chains are consolidated in the crystal packing by C—H···O contacts, Table 1.