organic compounds
(2E)-3-(4-Methylphenyl)-1-(2-methyl-4-phenylquinolin-3-yl)prop-2-en-1-one monohydrate
aOrganic Chemistry Division, School of Advanced Sciences, VIT University, Vellore 632 014, India, and bDepartment of Chemistry, University of Malaya, 50603 Kuala Lumpur, Malaysia
*Correspondence e-mail: edward.tiekink@gmail.com
The title hydrate, C26H21NO·H2O, exhibits significant twists of the benzene ring [dihedral angle = 87.24 (6)°] and chalcone residue [C—C—C—C torsion angle = −94.46 (17)°] out of the plane through the quinoline ring system. The conformation about the C=C bond [1.341 (2) Å] is E. The solvent water molecule forms hydrogen bonds to carbonyl O and quinoline N atoms derived from two molecules and through the application of a centre of inversion, a 16-membered {⋯HOH⋯OC3N}2 synthon is formed to stabilize the resulting tetrameric (two organic molecules plus two water molecules) aggregate. These are connected into a two-dimensional array via two C—H⋯O contacts, also involving the water molecule. The layers stack along the c axis, being linked by C—H⋯π interactions.
Experimental
Crystal data
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Refinement
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Data collection: APEX2 (Bruker, 2008); cell SAINT (Bruker, 2008); 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/S1600536810038791/hb5655sup1.cif
contains datablocks global, I. DOI:Structure factors: contains datablock I. DOI: https://doi.org/10.1107/S1600536810038791/hb5655Isup2.hkl
A mixture of 3-acetyl-2-methyl-4-phenylquinoline (2.6 g, 0.01 mmol), 4-methylbenzaldehyde (1.2 g, 0.01 mmol) and a catalytic amount of KOH was stirred in distilled ethanol (25 ml) for about 12 h. The resulting mixture was concentrated to remove ethanol, then poured on to ice and neutralized with dilute acetic acid. The resultant solid was filtered, dried and purified by
using an 1:1 mixture of ethyl acetate and petroleum ether. Re-crystallization was by slow evaporation of an acetone solution of (I) which yielded colourless crystals; Yield: 64%, M.pt. 412–414 K.Carbon-bound H-atoms were placed in calculated positions (C—H 0.95 to 0.98 Å) and were included in the
in the riding model approximation, with Uiso(H) set to 1.2 to 1.5Uequiv(C). The O-bound H atoms were refined with the distance restraint O—H = 0.84±0.1 Å, and with Uiso(H) = 1.5Uequiv(O). In the final a low angle reflection evidently effected by the beam stop was omitted, i.e. (0 0 1).Chalcones and their corresponding heterocyclic analogues are valuable intermediates in organic synthesis and exhibit a multitude of biological activities. From a chemical point of view, an important feature of
and their analogues is their ability to act as activated unsaturated systems in conjugated addition reactions of carbanions in the presence of basic catalysts (Roman, 2004). In continuation of our interest in the synthesis and crystallographic analysis of (Prasath et al., 2010), herein we report the structure of a new chalcone derivative isolated as an hydrate, (I).With reference to the quinolinyl residue (r.m.s. deviation = 0.014 Å), the benzene ring is almost normal, forming a dihedral angle of 87.24 (6) °. The chalcone residue also occupies a position normal to the quinolinyl group as seen in the value of the C7—C8—C17—C18 torsion angle of -94.46 (17) °. The conformation about the C18═C19 double bond [1.341 (2) Å] is E. Small twists are seen in the 4-methylphenyl)prop-2-en-1-one group so that while the expected planar arrangement is seen around the double bond [C17—C18—C19—C20 = -177.71 (13) °], the terminal benzene ring is twisted out of the plane [C18—C19—C20—C21 = -166.79 (15) °].
As anticipated, the water molecule plays a pivotal role in arranging molecules in the crystal packing. Two centrosymmetrically related water molecules link two organic molecules by forming hydrogen bonds to carbonyl-O and quinolinyl-N atoms, Table 1. In this way a 16-membered {···HOH···OC3N}2 synthon is formed, Fig. 2. These are connected into a supramolecular layer in the ab plane via two C—H···O contacts where the water-O accepts these interactions, Fig. 3 and Table 1. Layers stack along the c axis, being connected by C—H···π interactions, Fig. 4 and Table 1.
For background to
see: Prasath et al. (2010); Roman (2004).Data collection: APEX2 (Bruker, 2008); cell
SAINT (Bruker, 2008); data reduction: SAINT (Bruker, 2008); 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).Fig. 1. Molecular structure of (I) showing displacement ellipsoids at the 50% probability level. The O—H···O hydrogen bond is shown as a dashed line. | |
Fig. 2. Tetrameric aggregate in (I) sustained by O—H···O, N hydrogen bonds shown as orange dashed lines. | |
Fig. 3. Supramolecular array in the ab plane. The O—H···O, N hydrogen bonds and C—H···O interactions are shown as orange and blue dashed lines, respectively. Hydrogen atoms not participating in interactions to stabilize the array have been omitted for clarity. | |
Fig. 4. Unit-cell contents for (I) viewed in projection along the a axis showing the stacking of layers along the c axis. The O—H···O, N hydrogen bonds and C—H···O and C—H···π contacts are shown as orange, blue and purple dashed lines, respectively. |
C26H21NO·H2O | Z = 2 |
Mr = 381.45 | F(000) = 404 |
Triclinic, P1 | Dx = 1.245 Mg m−3 |
Hall symbol: -P 1 | Mo Kα radiation, λ = 0.71073 Å |
a = 8.2634 (7) Å | Cell parameters from 4003 reflections |
b = 9.0785 (7) Å | θ = 2.3–28.3° |
c = 14.1176 (12) Å | µ = 0.08 mm−1 |
α = 91.137 (1)° | T = 100 K |
β = 101.537 (1)° | Block, colourless |
γ = 100.820 (1)° | 0.30 × 0.25 × 0.20 mm |
V = 1017.43 (15) Å3 |
Bruker SMART APEX CCD diffractometer | 4647 independent reflections |
Radiation source: fine-focus sealed tube | 3790 reflections with I > 2σ(I) |
Graphite monochromator | Rint = 0.023 |
ω scans | θmax = 27.5°, θmin = 2.3° |
Absorption correction: multi-scan (SADABS; Sheldrick, 1996) | h = −10→10 |
Tmin = 0.794, Tmax = 0.862 | k = −11→11 |
9738 measured reflections | l = −18→18 |
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) = 0.165 | H atoms treated by a mixture of independent and constrained refinement |
S = 1.01 | w = 1/[σ2(Fo2) + (0.1041P)2 + 0.3702P] where P = (Fo2 + 2Fc2)/3 |
4647 reflections | (Δ/σ)max = 0.001 |
270 parameters | Δρmax = 0.35 e Å−3 |
3 restraints | Δρmin = −0.27 e Å−3 |
C26H21NO·H2O | γ = 100.820 (1)° |
Mr = 381.45 | V = 1017.43 (15) Å3 |
Triclinic, P1 | Z = 2 |
a = 8.2634 (7) Å | Mo Kα radiation |
b = 9.0785 (7) Å | µ = 0.08 mm−1 |
c = 14.1176 (12) Å | T = 100 K |
α = 91.137 (1)° | 0.30 × 0.25 × 0.20 mm |
β = 101.537 (1)° |
Bruker SMART APEX CCD diffractometer | 4647 independent reflections |
Absorption correction: multi-scan (SADABS; Sheldrick, 1996) | 3790 reflections with I > 2σ(I) |
Tmin = 0.794, Tmax = 0.862 | Rint = 0.023 |
9738 measured reflections |
R[F2 > 2σ(F2)] = 0.046 | 3 restraints |
wR(F2) = 0.165 | H atoms treated by a mixture of independent and constrained refinement |
S = 1.01 | Δρmax = 0.35 e Å−3 |
4647 reflections | Δρmin = −0.27 e Å−3 |
270 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 | 0.94050 (14) | 0.59600 (13) | 0.73474 (8) | 0.0254 (3) | |
O1W | 1.28132 (15) | 0.67478 (13) | 0.84124 (8) | 0.0250 (3) | |
H1W | 1.1758 (13) | 0.660 (2) | 0.8172 (15) | 0.037* | |
H2W | 1.280 (3) | 0.623 (2) | 0.8910 (11) | 0.037* | |
N1 | 0.74421 (16) | 0.53267 (14) | 1.00612 (9) | 0.0196 (3) | |
C1 | 0.71971 (18) | 0.67293 (16) | 1.03036 (10) | 0.0177 (3) | |
C2 | 0.6977 (2) | 0.70135 (18) | 1.12519 (11) | 0.0224 (3) | |
H2 | 0.6987 | 0.6239 | 1.1695 | 0.027* | |
C3 | 0.6751 (2) | 0.83978 (18) | 1.15372 (11) | 0.0232 (3) | |
H3 | 0.6601 | 0.8577 | 1.2176 | 0.028* | |
C4 | 0.67398 (19) | 0.95613 (17) | 1.08882 (11) | 0.0227 (3) | |
H4 | 0.6585 | 1.0519 | 1.1092 | 0.027* | |
C5 | 0.69517 (19) | 0.93110 (17) | 0.99649 (11) | 0.0196 (3) | |
H5 | 0.6947 | 1.0101 | 0.9533 | 0.024* | |
C6 | 0.71780 (17) | 0.78851 (16) | 0.96457 (10) | 0.0169 (3) | |
C7 | 0.73952 (17) | 0.75512 (16) | 0.86916 (10) | 0.0166 (3) | |
C8 | 0.76569 (18) | 0.61495 (16) | 0.84716 (10) | 0.0169 (3) | |
C9 | 0.76789 (18) | 0.50488 (17) | 0.91867 (11) | 0.0190 (3) | |
C10 | 0.8000 (2) | 0.35126 (17) | 0.89604 (12) | 0.0245 (3) | |
H10A | 0.8047 | 0.2937 | 0.9542 | 0.037* | |
H10B | 0.9073 | 0.3616 | 0.8749 | 0.037* | |
H10C | 0.7087 | 0.2987 | 0.8443 | 0.037* | |
C11 | 0.73297 (18) | 0.87247 (16) | 0.79625 (10) | 0.0173 (3) | |
C12 | 0.88036 (19) | 0.96807 (17) | 0.78550 (11) | 0.0214 (3) | |
H12 | 0.9857 | 0.9572 | 0.8235 | 0.026* | |
C13 | 0.8738 (2) | 1.07962 (17) | 0.71923 (12) | 0.0232 (3) | |
H13 | 0.9745 | 1.1449 | 0.7123 | 0.028* | |
C14 | 0.7202 (2) | 1.09540 (17) | 0.66338 (11) | 0.0218 (3) | |
H14 | 0.7157 | 1.1709 | 0.6178 | 0.026* | |
C15 | 0.5731 (2) | 1.00064 (17) | 0.67422 (11) | 0.0225 (3) | |
H15 | 0.4680 | 1.0117 | 0.6360 | 0.027* | |
C16 | 0.57866 (19) | 0.88978 (17) | 0.74058 (11) | 0.0197 (3) | |
H16 | 0.4775 | 0.8258 | 0.7481 | 0.024* | |
C17 | 0.79675 (18) | 0.57226 (16) | 0.74902 (11) | 0.0179 (3) | |
C18 | 0.65484 (19) | 0.49748 (16) | 0.67431 (10) | 0.0189 (3) | |
H18 | 0.6776 | 0.4576 | 0.6167 | 0.023* | |
C19 | 0.49390 (19) | 0.48223 (16) | 0.68281 (10) | 0.0181 (3) | |
H19 | 0.4744 | 0.5264 | 0.7400 | 0.022* | |
C20 | 0.34572 (18) | 0.40472 (16) | 0.61317 (10) | 0.0177 (3) | |
C21 | 0.18670 (19) | 0.42552 (17) | 0.62322 (11) | 0.0203 (3) | |
H21 | 0.1774 | 0.4912 | 0.6742 | 0.024* | |
C22 | 0.04245 (19) | 0.35188 (17) | 0.56003 (11) | 0.0215 (3) | |
H22 | −0.0642 | 0.3687 | 0.5680 | 0.026* | |
C23 | 0.0509 (2) | 0.25349 (17) | 0.48501 (11) | 0.0221 (3) | |
C24 | 0.2101 (2) | 0.23307 (18) | 0.47450 (11) | 0.0227 (3) | |
H24 | 0.2189 | 0.1672 | 0.4235 | 0.027* | |
C25 | 0.3546 (2) | 0.30677 (17) | 0.53679 (11) | 0.0216 (3) | |
H25 | 0.4613 | 0.2912 | 0.5280 | 0.026* | |
C26 | −0.1064 (2) | 0.1710 (2) | 0.41757 (12) | 0.0291 (4) | |
H26A | −0.2011 | 0.2191 | 0.4232 | 0.044* | |
H26B | −0.1308 | 0.0663 | 0.4348 | 0.044* | |
H26C | −0.0898 | 0.1740 | 0.3508 | 0.044* |
U11 | U22 | U33 | U12 | U13 | U23 | |
O1 | 0.0202 (6) | 0.0342 (6) | 0.0227 (6) | 0.0050 (5) | 0.0068 (4) | 0.0002 (5) |
O1W | 0.0252 (6) | 0.0248 (6) | 0.0232 (6) | 0.0007 (5) | 0.0042 (5) | 0.0061 (5) |
N1 | 0.0217 (6) | 0.0181 (6) | 0.0185 (6) | 0.0030 (5) | 0.0040 (5) | 0.0034 (5) |
C1 | 0.0155 (7) | 0.0191 (7) | 0.0176 (7) | 0.0021 (5) | 0.0027 (5) | 0.0008 (5) |
C2 | 0.0230 (8) | 0.0263 (8) | 0.0182 (7) | 0.0046 (6) | 0.0050 (6) | 0.0045 (6) |
C3 | 0.0219 (7) | 0.0295 (8) | 0.0183 (7) | 0.0039 (6) | 0.0058 (6) | −0.0025 (6) |
C4 | 0.0209 (7) | 0.0224 (7) | 0.0238 (8) | 0.0052 (6) | 0.0022 (6) | −0.0046 (6) |
C5 | 0.0190 (7) | 0.0184 (7) | 0.0209 (7) | 0.0040 (5) | 0.0027 (6) | 0.0013 (6) |
C6 | 0.0143 (6) | 0.0183 (7) | 0.0169 (7) | 0.0021 (5) | 0.0013 (5) | 0.0006 (5) |
C7 | 0.0120 (6) | 0.0180 (7) | 0.0184 (7) | 0.0015 (5) | 0.0013 (5) | 0.0017 (5) |
C8 | 0.0145 (6) | 0.0191 (7) | 0.0162 (7) | 0.0020 (5) | 0.0021 (5) | 0.0007 (5) |
C9 | 0.0187 (7) | 0.0185 (7) | 0.0184 (7) | 0.0029 (5) | 0.0015 (5) | 0.0004 (5) |
C10 | 0.0328 (9) | 0.0195 (7) | 0.0225 (8) | 0.0081 (6) | 0.0056 (6) | 0.0026 (6) |
C11 | 0.0203 (7) | 0.0168 (7) | 0.0150 (7) | 0.0044 (5) | 0.0039 (5) | 0.0007 (5) |
C12 | 0.0169 (7) | 0.0242 (7) | 0.0208 (7) | 0.0013 (6) | 0.0010 (6) | 0.0024 (6) |
C13 | 0.0230 (8) | 0.0205 (7) | 0.0245 (8) | −0.0021 (6) | 0.0071 (6) | 0.0021 (6) |
C14 | 0.0287 (8) | 0.0177 (7) | 0.0204 (7) | 0.0054 (6) | 0.0072 (6) | 0.0053 (6) |
C15 | 0.0203 (7) | 0.0243 (8) | 0.0231 (8) | 0.0069 (6) | 0.0020 (6) | 0.0039 (6) |
C16 | 0.0166 (7) | 0.0205 (7) | 0.0217 (7) | 0.0024 (5) | 0.0042 (6) | 0.0032 (6) |
C17 | 0.0196 (7) | 0.0165 (7) | 0.0190 (7) | 0.0055 (5) | 0.0053 (6) | 0.0027 (5) |
C18 | 0.0230 (7) | 0.0190 (7) | 0.0156 (7) | 0.0053 (6) | 0.0047 (6) | 0.0005 (5) |
C19 | 0.0221 (7) | 0.0184 (7) | 0.0146 (7) | 0.0054 (6) | 0.0040 (6) | 0.0008 (5) |
C20 | 0.0204 (7) | 0.0176 (7) | 0.0157 (7) | 0.0042 (5) | 0.0042 (5) | 0.0036 (5) |
C21 | 0.0233 (8) | 0.0210 (7) | 0.0186 (7) | 0.0054 (6) | 0.0077 (6) | 0.0021 (6) |
C22 | 0.0207 (7) | 0.0242 (7) | 0.0213 (7) | 0.0044 (6) | 0.0077 (6) | 0.0058 (6) |
C23 | 0.0228 (8) | 0.0212 (7) | 0.0204 (7) | 0.0007 (6) | 0.0034 (6) | 0.0047 (6) |
C24 | 0.0250 (8) | 0.0237 (7) | 0.0186 (7) | 0.0046 (6) | 0.0035 (6) | −0.0024 (6) |
C25 | 0.0211 (7) | 0.0238 (7) | 0.0211 (7) | 0.0072 (6) | 0.0047 (6) | −0.0005 (6) |
C26 | 0.0249 (8) | 0.0316 (9) | 0.0265 (8) | −0.0012 (7) | 0.0016 (7) | 0.0009 (7) |
O1—C17 | 1.2245 (18) | C12—H12 | 0.9500 |
O1W—H1W | 0.854 (10) | C13—C14 | 1.388 (2) |
O1W—H2W | 0.852 (9) | C13—H13 | 0.9500 |
N1—C9 | 1.3149 (19) | C14—C15 | 1.389 (2) |
N1—C1 | 1.3736 (18) | C14—H14 | 0.9500 |
C1—C2 | 1.412 (2) | C15—C16 | 1.389 (2) |
C1—C6 | 1.415 (2) | C15—H15 | 0.9500 |
C2—C3 | 1.369 (2) | C16—H16 | 0.9500 |
C2—H2 | 0.9500 | C17—C18 | 1.458 (2) |
C3—C4 | 1.412 (2) | C18—C19 | 1.341 (2) |
C3—H3 | 0.9500 | C18—H18 | 0.9500 |
C4—C5 | 1.370 (2) | C19—C20 | 1.459 (2) |
C4—H4 | 0.9500 | C19—H19 | 0.9500 |
C5—C6 | 1.4196 (19) | C20—C21 | 1.396 (2) |
C5—H5 | 0.9500 | C20—C25 | 1.406 (2) |
C6—C7 | 1.428 (2) | C21—C22 | 1.384 (2) |
C7—C8 | 1.370 (2) | C21—H21 | 0.9500 |
C7—C11 | 1.497 (2) | C22—C23 | 1.393 (2) |
C8—C9 | 1.434 (2) | C22—H22 | 0.9500 |
C8—C17 | 1.5146 (19) | C23—C24 | 1.398 (2) |
C9—C10 | 1.507 (2) | C23—C26 | 1.506 (2) |
C10—H10A | 0.9800 | C24—C25 | 1.380 (2) |
C10—H10B | 0.9800 | C24—H24 | 0.9500 |
C10—H10C | 0.9800 | C25—H25 | 0.9500 |
C11—C12 | 1.394 (2) | C26—H26A | 0.9800 |
C11—C16 | 1.396 (2) | C26—H26B | 0.9800 |
C12—C13 | 1.394 (2) | C26—H26C | 0.9800 |
H1W—O1W—H2W | 100 (2) | C12—C13—H13 | 120.0 |
C9—N1—C1 | 118.81 (13) | C13—C14—C15 | 119.89 (14) |
N1—C1—C2 | 117.92 (13) | C13—C14—H14 | 120.1 |
N1—C1—C6 | 122.51 (13) | C15—C14—H14 | 120.1 |
C2—C1—C6 | 119.57 (13) | C14—C15—C16 | 120.39 (14) |
C3—C2—C1 | 120.42 (15) | C14—C15—H15 | 119.8 |
C3—C2—H2 | 119.8 | C16—C15—H15 | 119.8 |
C1—C2—H2 | 119.8 | C15—C16—C11 | 119.95 (14) |
C2—C3—C4 | 120.46 (14) | C15—C16—H16 | 120.0 |
C2—C3—H3 | 119.8 | C11—C16—H16 | 120.0 |
C4—C3—H3 | 119.8 | O1—C17—C18 | 121.12 (13) |
C5—C4—C3 | 120.12 (14) | O1—C17—C8 | 119.76 (13) |
C5—C4—H4 | 119.9 | C18—C17—C8 | 119.07 (12) |
C3—C4—H4 | 119.9 | C19—C18—C17 | 123.29 (13) |
C4—C5—C6 | 120.74 (14) | C19—C18—H18 | 118.4 |
C4—C5—H5 | 119.6 | C17—C18—H18 | 118.4 |
C6—C5—H5 | 119.6 | C18—C19—C20 | 126.63 (13) |
C1—C6—C5 | 118.69 (13) | C18—C19—H19 | 116.7 |
C1—C6—C7 | 117.89 (13) | C20—C19—H19 | 116.7 |
C5—C6—C7 | 123.41 (13) | C21—C20—C25 | 117.89 (14) |
C8—C7—C6 | 118.43 (13) | C21—C20—C19 | 119.03 (13) |
C8—C7—C11 | 121.85 (13) | C25—C20—C19 | 123.06 (13) |
C6—C7—C11 | 119.71 (12) | C22—C21—C20 | 121.01 (13) |
C7—C8—C9 | 120.04 (13) | C22—C21—H21 | 119.5 |
C7—C8—C17 | 121.83 (13) | C20—C21—H21 | 119.5 |
C9—C8—C17 | 118.12 (12) | C21—C22—C23 | 121.16 (14) |
N1—C9—C8 | 122.29 (13) | C21—C22—H22 | 119.4 |
N1—C9—C10 | 117.14 (13) | C23—C22—H22 | 119.4 |
C8—C9—C10 | 120.57 (13) | C22—C23—C24 | 117.93 (14) |
C9—C10—H10A | 109.5 | C22—C23—C26 | 121.08 (14) |
C9—C10—H10B | 109.5 | C24—C23—C26 | 120.99 (14) |
H10A—C10—H10B | 109.5 | C25—C24—C23 | 121.28 (14) |
C9—C10—H10C | 109.5 | C25—C24—H24 | 119.4 |
H10A—C10—H10C | 109.5 | C23—C24—H24 | 119.4 |
H10B—C10—H10C | 109.5 | C24—C25—C20 | 120.72 (14) |
C12—C11—C16 | 119.54 (14) | C24—C25—H25 | 119.6 |
C12—C11—C7 | 120.23 (13) | C20—C25—H25 | 119.6 |
C16—C11—C7 | 120.21 (13) | C23—C26—H26A | 109.5 |
C11—C12—C13 | 120.23 (14) | C23—C26—H26B | 109.5 |
C11—C12—H12 | 119.9 | H26A—C26—H26B | 109.5 |
C13—C12—H12 | 119.9 | C23—C26—H26C | 109.5 |
C14—C13—C12 | 120.00 (14) | H26A—C26—H26C | 109.5 |
C14—C13—H13 | 120.0 | H26B—C26—H26C | 109.5 |
C9—N1—C1—C2 | −178.81 (14) | C8—C7—C11—C16 | 94.05 (17) |
C9—N1—C1—C6 | 0.4 (2) | C6—C7—C11—C16 | −85.84 (17) |
N1—C1—C2—C3 | 179.12 (14) | C16—C11—C12—C13 | −0.4 (2) |
C6—C1—C2—C3 | −0.2 (2) | C7—C11—C12—C13 | −178.49 (13) |
C1—C2—C3—C4 | −0.2 (2) | C11—C12—C13—C14 | −0.3 (2) |
C2—C3—C4—C5 | 0.2 (2) | C12—C13—C14—C15 | 0.5 (2) |
C3—C4—C5—C6 | 0.3 (2) | C13—C14—C15—C16 | −0.1 (2) |
N1—C1—C6—C5 | −178.69 (13) | C14—C15—C16—C11 | −0.5 (2) |
C2—C1—C6—C5 | 0.6 (2) | C12—C11—C16—C15 | 0.7 (2) |
N1—C1—C6—C7 | 1.1 (2) | C7—C11—C16—C15 | 178.87 (13) |
C2—C1—C6—C7 | −179.66 (13) | C7—C8—C17—O1 | 88.14 (18) |
C4—C5—C6—C1 | −0.6 (2) | C9—C8—C17—O1 | −90.49 (17) |
C4—C5—C6—C7 | 179.62 (14) | C7—C8—C17—C18 | −94.46 (17) |
C1—C6—C7—C8 | −1.8 (2) | C9—C8—C17—C18 | 86.91 (17) |
C5—C6—C7—C8 | 177.97 (13) | O1—C17—C18—C19 | −173.19 (14) |
C1—C6—C7—C11 | 178.09 (13) | C8—C17—C18—C19 | 9.4 (2) |
C5—C6—C7—C11 | −2.1 (2) | C17—C18—C19—C20 | −177.71 (13) |
C6—C7—C8—C9 | 1.1 (2) | C18—C19—C20—C21 | −166.79 (15) |
C11—C7—C8—C9 | −178.82 (13) | C18—C19—C20—C25 | 14.5 (2) |
C6—C7—C8—C17 | −177.54 (13) | C25—C20—C21—C22 | 0.1 (2) |
C11—C7—C8—C17 | 2.6 (2) | C19—C20—C21—C22 | −178.68 (13) |
C1—N1—C9—C8 | −1.3 (2) | C20—C21—C22—C23 | 0.7 (2) |
C1—N1—C9—C10 | 178.05 (13) | C21—C22—C23—C24 | −1.0 (2) |
C7—C8—C9—N1 | 0.5 (2) | C21—C22—C23—C26 | 178.73 (14) |
C17—C8—C9—N1 | 179.17 (13) | C22—C23—C24—C25 | 0.6 (2) |
C7—C8—C9—C10 | −178.78 (14) | C26—C23—C24—C25 | −179.16 (15) |
C17—C8—C9—C10 | −0.1 (2) | C23—C24—C25—C20 | 0.2 (2) |
C8—C7—C11—C12 | −87.84 (18) | C21—C20—C25—C24 | −0.5 (2) |
C6—C7—C11—C12 | 92.27 (17) | C19—C20—C25—C24 | 178.20 (14) |
D—H···A | D—H | H···A | D···A | D—H···A |
O1w—H1w···O1 | 0.85 (1) | 2.03 (1) | 2.8654 (17) | 166 (2) |
O1w—H2w···N1i | 0.85 (1) | 2.06 (1) | 2.9032 (17) | 170 (2) |
C4—H4···O1wii | 0.95 | 2.49 | 3.4055 (19) | 161 |
C16—H16···O1wiii | 0.95 | 2.52 | 3.402 (2) | 155 |
C24—H24···Cg1iv | 0.95 | 2.70 | 3.6414 (17) | 171 |
Symmetry codes: (i) −x+2, −y+1, −z+2; (ii) −x+2, −y+2, −z+2; (iii) x−1, y, z; (iv) −x+1, −y+1, −z+1. |
Experimental details
Crystal data | |
Chemical formula | C26H21NO·H2O |
Mr | 381.45 |
Crystal system, space group | Triclinic, P1 |
Temperature (K) | 100 |
a, b, c (Å) | 8.2634 (7), 9.0785 (7), 14.1176 (12) |
α, β, γ (°) | 91.137 (1), 101.537 (1), 100.820 (1) |
V (Å3) | 1017.43 (15) |
Z | 2 |
Radiation type | Mo Kα |
µ (mm−1) | 0.08 |
Crystal size (mm) | 0.30 × 0.25 × 0.20 |
Data collection | |
Diffractometer | Bruker SMART APEX CCD |
Absorption correction | Multi-scan (SADABS; Sheldrick, 1996) |
Tmin, Tmax | 0.794, 0.862 |
No. of measured, independent and observed [I > 2σ(I)] reflections | 9738, 4647, 3790 |
Rint | 0.023 |
(sin θ/λ)max (Å−1) | 0.650 |
Refinement | |
R[F2 > 2σ(F2)], wR(F2), S | 0.046, 0.165, 1.01 |
No. of reflections | 4647 |
No. of parameters | 270 |
No. of restraints | 3 |
H-atom treatment | H atoms treated by a mixture of independent and constrained refinement |
Δρmax, Δρmin (e Å−3) | 0.35, −0.27 |
Computer programs: APEX2 (Bruker, 2008), SAINT (Bruker, 2008), 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···O1 | 0.854 (10) | 2.029 (11) | 2.8654 (17) | 166 (2) |
O1w—H2w···N1i | 0.852 (9) | 2.061 (10) | 2.9032 (17) | 170 (2) |
C4—H4···O1wii | 0.95 | 2.49 | 3.4055 (19) | 161 |
C16—H16···O1wiii | 0.95 | 2.52 | 3.402 (2) | 155 |
C24—H24···Cg1iv | 0.95 | 2.70 | 3.6414 (17) | 171 |
Symmetry codes: (i) −x+2, −y+1, −z+2; (ii) −x+2, −y+2, −z+2; (iii) x−1, y, z; (iv) −x+1, −y+1, −z+1. |
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). The authors are also grateful to the University of Malaya for support of the crystallographic facility.
References
Brandenburg, K. (2006). DIAMOND. Crystal Impact GbR, Bonn, Germany. Google Scholar
Bruker (2008). APEX2 and SAINT. Bruker AXS Inc., Madison, Wisconsin, USA. Google Scholar
Farrugia, L. J. (1997). J. Appl. Cryst. 30, 565. CrossRef IUCr Journals Google Scholar
Prasath, R., Sarveswari, S., Vijayakumar, V., Narasimhamurthy, T. & Tiekink, E. R. T. (2010). Acta Cryst. E66, o1110. Web of Science CSD CrossRef IUCr Journals Google Scholar
Roman, G. (2004). Acta Chim. Slov. 51, 537–544. 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
Westrip, S. P. (2010). J. Appl. Cryst. 43, 920–925. Web of Science CrossRef CAS IUCr Journals 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.
Chalcones and their corresponding heterocyclic analogues are valuable intermediates in organic synthesis and exhibit a multitude of biological activities. From a chemical point of view, an important feature of chalcones and their analogues is their ability to act as activated unsaturated systems in conjugated addition reactions of carbanions in the presence of basic catalysts (Roman, 2004). In continuation of our interest in the synthesis and crystallographic analysis of chalcones (Prasath et al., 2010), herein we report the structure of a new chalcone derivative isolated as an hydrate, (I).
With reference to the quinolinyl residue (r.m.s. deviation = 0.014 Å), the benzene ring is almost normal, forming a dihedral angle of 87.24 (6) °. The chalcone residue also occupies a position normal to the quinolinyl group as seen in the value of the C7—C8—C17—C18 torsion angle of -94.46 (17) °. The conformation about the C18═C19 double bond [1.341 (2) Å] is E. Small twists are seen in the 4-methylphenyl)prop-2-en-1-one group so that while the expected planar arrangement is seen around the double bond [C17—C18—C19—C20 = -177.71 (13) °], the terminal benzene ring is twisted out of the plane [C18—C19—C20—C21 = -166.79 (15) °].
As anticipated, the water molecule plays a pivotal role in arranging molecules in the crystal packing. Two centrosymmetrically related water molecules link two organic molecules by forming hydrogen bonds to carbonyl-O and quinolinyl-N atoms, Table 1. In this way a 16-membered {···HOH···OC3N}2 synthon is formed, Fig. 2. These are connected into a supramolecular layer in the ab plane via two C—H···O contacts where the water-O accepts these interactions, Fig. 3 and Table 1. Layers stack along the c axis, being connected by C—H···π interactions, Fig. 4 and Table 1.