organic compounds
(2-Benzoylphenyl)(2-methoxy-1-naphthyl)methanone
aDepartment of Physics, Dr MGR Educational and Research Institute, Dr MGR University, Chennai 600 095, India, bDepartment of Physics, RKM Vivekananda College (Autonomous), Chennai 600 004, India, and cDepartment of Organic Chemistry, University of Madras, Maraimalai Campus, Chennai 600 025, India
*Correspondence e-mail: ksethusankar@yahoo.co.in
In the title compound C25H18O3, the central benzene ring forms dihedral angles of 87.4 (5) and 85.4 (4)° with the phenyl ring and the naphthalene ring system, respectively. The carbonyl O atoms deviate significantly from the phenyl ring and the methoxy-substituted naphthalene ring system [by 0.508 (1) and 0.821 (1) Å, respectively]. The crystal packing is stabilized by C—H⋯O hydrogen bonds, which generate C(6) chains, and C—H⋯π interactions.
Related literature
For chelating reagents of metallic systems, see: Liang et al. (2003). For the uses and biological importance of diketones, see: Bennett et al. (1999). For related structures, see: Tsumuki et al. (2011); Jagadeesan et al. (2011).
Experimental
Crystal data
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Data collection
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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); software used to prepare material for publication: SHELXL97 and PLATON (Spek, 2009).
Supporting information
https://doi.org/10.1107/S1600536811038049/rk2301sup1.cif
contains datablocks global, I. DOI:Structure factors: contains datablock I. DOI: https://doi.org/10.1107/S1600536811038049/rk2301Isup2.hkl
Supporting information file. DOI: https://doi.org/10.1107/S1600536811038049/rk2301Isup3.cml
To a stirred suspension of 1-(2-methoxy-1-naphthyl)-3-phenyl-2-benzofuran (1 g, 3.22 mmol) in dry THF (20 ml), lead tetraaccetate (1.52 g, 3.42 mmol) was added and refluxed at 343 K for half an hour. The reaction mixture was then poured into water (200 ml) and extracted with ethyl acetate (2×20 ml), washed with brine solution and dried (Na2SO4). The removal of solvent in vacuo afforded crude product. The crude product upon crystallization from methanol furnished the tittle compound as a colourless solid.
Hydrogen atoms were placed in calculated positions with C—H = 0.93Å & 0.96Å and refined in the riding model with fixed isotropic displacement parameters: Uiso(H) = 1.5Ueq(C) for methyl group and Uiso(H) = 1.2Ueq(C) for aryl groups.
Diketones are employed as effective chelating reagents for a large number of metallic systems (Liang et al., 2003). They are also popular in organic synthesis, for their applications in biology, medicine and also known to exhibit antioxidant, antitumour and antibacterial activities (Bennett et al., 1999).
The molecular structure of the title compound C25H18O3, is shown at Fig. 1. The central phenyl ring (C8–C13) forms dihedral angles of 87.4 (5)° and 85.4 (4)° with the phenyl ring (C1–C6) and naphthalene moiety (C15–C24), respectively. The central phenyl ring (C8–C13) forms dihedral angles of 70.2 (5)° and 18.9 (5)° with the mean plane of the ketone groups (C6–C8/O1) and (C13–C15/O2), respectively. The dihedral angles between the naphthalene moiety (C15–C24) and phenyl ring (C1–C6) is 26.9 (4)°. The bond lengths and bond angles are normal and correspond to those observed in (2-benzoylphenyl)- (3,4-dimethylphenyl)-methanone (Jagadeesan et al., 2011).
The two benzene rings (C15/16/C21–C24) and (C16–C21) are almost coplanar with dihedral angle of 1.54 (6)° between them. The atoms C25, O2 and O3 are having deviations of 0.213 (2)Å, 0.821 (1)Å and -0.013 (1)Å from the mean plane of the methoxy substituted naphthalene moiety (C15–C24), respectively. The atom O1 deviates by 0.508 (1)Å from the plane of the phenyl ring (C1–C6). The title compound exhibits the structural similarities with the reported related structures (Tsumuki et al., 2011; Jagadeesan et al., 2011).
In crystal packing, the molecules are linked via C10–H10···O1i intermolecular interaction, which generates a C(6) chain. The crystal packing further stabilized by C19—H19···Cg1ii interaction, where Cg1 is center of gravity of (C8–C13) ring (Table 1). Symmetry codes: (i) x, y+1, z; (ii) x, -y+1/2, z-3/2. The packing view of the compound is shown in (Fig. 2).
For chelating reagents of metallic systems, see: Liang et al. (2003). For the uses and biological importance of diketones, see: Bennett et al. (1999). For related structures, see: Tsumuki et al. (2011); Jagadeesan et al. (2011).
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); software used to prepare material for publication: SHELXL97 (Sheldrick, 2008) and PLATON (Spek, 2009).C25H18O3 | F(000) = 768 |
Mr = 366.39 | Dx = 1.295 Mg m−3 |
Monoclinic, P21/c | Mo Kα radiation, λ = 0.71073 Å |
Hall symbol: -P 2ybc | Cell parameters from 3546 reflections |
a = 15.0592 (7) Å | θ = 1.4–29.8° |
b = 7.6768 (3) Å | µ = 0.08 mm−1 |
c = 16.9274 (8) Å | T = 295 K |
β = 106.137 (2)° | Block, colourless |
V = 1879.81 (15) Å3 | 0.30 × 0.25 × 0.20 mm |
Z = 4 |
Bruker Kappa APEX II CCD diffractometer | 3546 reflections with I > 2σ(I) |
Radiation source: fine-focus sealed tube | Rint = 0.026 |
Graphite monochromator | θmax = 29.8°, θmin = 2.5° |
φ– and ω–scans | h = −21→20 |
22918 measured reflections | k = −7→10 |
5339 independent reflections | l = −23→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)] = 0.046 | Hydrogen site location: inferred from neighbouring sites |
wR(F2) = 0.142 | H-atom parameters constrained |
S = 1.00 | w = 1/[σ2(Fo2) + (0.0646P)2 + 0.4893P] where P = (Fo2 + 2Fc2)/3 |
5339 reflections | (Δ/σ)max < 0.001 |
254 parameters | Δρmax = 0.28 e Å−3 |
0 restraints | Δρmin = −0.17 e Å−3 |
C25H18O3 | V = 1879.81 (15) Å3 |
Mr = 366.39 | Z = 4 |
Monoclinic, P21/c | Mo Kα radiation |
a = 15.0592 (7) Å | µ = 0.08 mm−1 |
b = 7.6768 (3) Å | T = 295 K |
c = 16.9274 (8) Å | 0.30 × 0.25 × 0.20 mm |
β = 106.137 (2)° |
Bruker Kappa APEX II CCD diffractometer | 3546 reflections with I > 2σ(I) |
22918 measured reflections | Rint = 0.026 |
5339 independent reflections |
R[F2 > 2σ(F2)] = 0.046 | 0 restraints |
wR(F2) = 0.142 | H-atom parameters constrained |
S = 1.00 | Δρmax = 0.28 e Å−3 |
5339 reflections | Δρmin = −0.17 e Å−3 |
254 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 > 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 | 0.32655 (11) | 0.5102 (2) | 0.64285 (10) | 0.0489 (4) | |
H1 | 0.2815 | 0.5894 | 0.6159 | 0.059* | |
C2 | 0.33289 (13) | 0.4623 (3) | 0.72296 (11) | 0.0645 (5) | |
H2 | 0.2915 | 0.5075 | 0.7494 | 0.077* | |
C3 | 0.40028 (15) | 0.3480 (3) | 0.76349 (12) | 0.0694 (5) | |
H3 | 0.4044 | 0.3155 | 0.8173 | 0.083* | |
C4 | 0.46149 (16) | 0.2816 (3) | 0.72472 (12) | 0.0716 (6) | |
H4 | 0.5076 | 0.2057 | 0.7528 | 0.086* | |
C5 | 0.45535 (12) | 0.3264 (2) | 0.64411 (10) | 0.0537 (4) | |
H5 | 0.4969 | 0.2802 | 0.6181 | 0.064* | |
C6 | 0.38683 (9) | 0.44093 (17) | 0.60238 (9) | 0.0383 (3) | |
C7 | 0.37750 (8) | 0.48647 (16) | 0.51530 (8) | 0.0339 (3) | |
C8 | 0.33986 (8) | 0.66384 (16) | 0.48624 (8) | 0.0315 (3) | |
C9 | 0.39631 (10) | 0.80583 (18) | 0.51630 (9) | 0.0407 (3) | |
H9 | 0.4518 | 0.7893 | 0.5567 | 0.049* | |
C10 | 0.37067 (11) | 0.97165 (19) | 0.48663 (10) | 0.0456 (3) | |
H10 | 0.4091 | 1.0656 | 0.5071 | 0.055* | |
C11 | 0.28879 (11) | 0.99841 (18) | 0.42712 (10) | 0.0452 (3) | |
H11 | 0.2719 | 1.1101 | 0.4073 | 0.054* | |
C12 | 0.23162 (10) | 0.85857 (17) | 0.39690 (9) | 0.0390 (3) | |
H12 | 0.1763 | 0.8767 | 0.3565 | 0.047* | |
C13 | 0.25602 (8) | 0.69061 (15) | 0.42638 (8) | 0.0308 (3) | |
C14 | 0.18976 (8) | 0.54380 (17) | 0.39884 (8) | 0.0329 (3) | |
C15 | 0.11451 (9) | 0.57010 (17) | 0.32057 (8) | 0.0353 (3) | |
C16 | 0.13622 (10) | 0.57056 (18) | 0.24428 (9) | 0.0402 (3) | |
C17 | 0.22628 (12) | 0.5324 (2) | 0.23795 (11) | 0.0529 (4) | |
H17 | 0.2735 | 0.5074 | 0.2852 | 0.063* | |
C18 | 0.24417 (16) | 0.5322 (3) | 0.16352 (13) | 0.0714 (5) | |
H18 | 0.3033 | 0.5053 | 0.1603 | 0.086* | |
C19 | 0.1752 (2) | 0.5716 (3) | 0.09233 (13) | 0.0819 (7) | |
H19 | 0.1888 | 0.5727 | 0.0420 | 0.098* | |
C20 | 0.08820 (18) | 0.6083 (3) | 0.09543 (11) | 0.0717 (6) | |
H20 | 0.0429 | 0.6348 | 0.0471 | 0.086* | |
C21 | 0.06502 (12) | 0.6069 (2) | 0.17118 (9) | 0.0492 (4) | |
C22 | −0.02422 (13) | 0.6403 (2) | 0.17769 (11) | 0.0572 (5) | |
H22 | −0.0710 | 0.6662 | 0.1303 | 0.069* | |
C23 | −0.04461 (11) | 0.6362 (2) | 0.25055 (11) | 0.0533 (4) | |
H23 | −0.1048 | 0.6571 | 0.2526 | 0.064* | |
C24 | 0.02565 (9) | 0.60013 (19) | 0.32376 (9) | 0.0417 (3) | |
C25 | −0.08045 (13) | 0.6050 (3) | 0.40589 (14) | 0.0703 (5) | |
H25A | −0.1093 | 0.7120 | 0.3828 | 0.105* | |
H25B | −0.0797 | 0.5981 | 0.4627 | 0.105* | |
H25C | −0.1146 | 0.5083 | 0.3764 | 0.105* | |
O1 | 0.40464 (7) | 0.39130 (13) | 0.46951 (6) | 0.0455 (3) | |
O2 | 0.19662 (7) | 0.41118 (13) | 0.43910 (7) | 0.0480 (3) | |
O3 | 0.01160 (7) | 0.60000 (18) | 0.39966 (7) | 0.0601 (3) |
U11 | U22 | U33 | U12 | U13 | U23 | |
C1 | 0.0412 (8) | 0.0565 (9) | 0.0468 (9) | 0.0060 (7) | 0.0086 (6) | 0.0080 (7) |
C2 | 0.0571 (11) | 0.0871 (14) | 0.0491 (10) | 0.0011 (10) | 0.0148 (8) | 0.0082 (9) |
C3 | 0.0752 (13) | 0.0791 (13) | 0.0457 (10) | −0.0029 (11) | 0.0034 (9) | 0.0149 (9) |
C4 | 0.0811 (14) | 0.0612 (11) | 0.0543 (11) | 0.0194 (10) | −0.0114 (10) | 0.0121 (9) |
C5 | 0.0537 (9) | 0.0470 (9) | 0.0500 (9) | 0.0148 (7) | −0.0029 (7) | 0.0000 (7) |
C6 | 0.0346 (7) | 0.0327 (6) | 0.0415 (7) | −0.0008 (5) | 0.0004 (5) | 0.0008 (5) |
C7 | 0.0245 (6) | 0.0307 (6) | 0.0424 (7) | −0.0018 (5) | 0.0023 (5) | −0.0020 (5) |
C8 | 0.0296 (6) | 0.0302 (6) | 0.0345 (6) | −0.0002 (5) | 0.0087 (5) | −0.0015 (5) |
C9 | 0.0352 (7) | 0.0374 (7) | 0.0455 (8) | −0.0046 (5) | 0.0043 (6) | −0.0055 (6) |
C10 | 0.0493 (8) | 0.0324 (7) | 0.0544 (9) | −0.0093 (6) | 0.0132 (7) | −0.0070 (6) |
C11 | 0.0584 (9) | 0.0273 (6) | 0.0512 (9) | 0.0015 (6) | 0.0172 (7) | 0.0035 (6) |
C12 | 0.0416 (7) | 0.0351 (7) | 0.0373 (7) | 0.0042 (5) | 0.0058 (6) | 0.0040 (5) |
C13 | 0.0312 (6) | 0.0292 (6) | 0.0311 (6) | 0.0004 (5) | 0.0069 (5) | −0.0008 (5) |
C14 | 0.0278 (6) | 0.0347 (6) | 0.0345 (7) | 0.0002 (5) | 0.0058 (5) | 0.0010 (5) |
C15 | 0.0315 (6) | 0.0334 (6) | 0.0357 (7) | −0.0017 (5) | 0.0005 (5) | 0.0007 (5) |
C16 | 0.0460 (8) | 0.0334 (7) | 0.0373 (7) | −0.0054 (6) | 0.0053 (6) | −0.0002 (5) |
C17 | 0.0548 (9) | 0.0566 (9) | 0.0504 (9) | −0.0036 (8) | 0.0199 (7) | −0.0007 (7) |
C18 | 0.0841 (14) | 0.0756 (13) | 0.0664 (13) | −0.0067 (11) | 0.0404 (11) | −0.0011 (10) |
C19 | 0.119 (2) | 0.0822 (15) | 0.0550 (12) | −0.0156 (14) | 0.0412 (13) | −0.0003 (10) |
C20 | 0.1073 (17) | 0.0608 (11) | 0.0361 (9) | −0.0140 (11) | 0.0019 (10) | 0.0057 (8) |
C21 | 0.0609 (10) | 0.0378 (7) | 0.0388 (8) | −0.0070 (7) | −0.0028 (7) | 0.0028 (6) |
C22 | 0.0588 (10) | 0.0436 (8) | 0.0500 (10) | −0.0019 (7) | −0.0167 (8) | 0.0052 (7) |
C23 | 0.0327 (7) | 0.0482 (9) | 0.0669 (11) | 0.0017 (6) | −0.0063 (7) | 0.0003 (7) |
C24 | 0.0334 (7) | 0.0407 (7) | 0.0460 (8) | −0.0009 (6) | 0.0027 (6) | −0.0014 (6) |
C25 | 0.0454 (10) | 0.0783 (13) | 0.0950 (15) | 0.0089 (9) | 0.0326 (10) | 0.0045 (11) |
O1 | 0.0449 (6) | 0.0386 (5) | 0.0523 (6) | 0.0062 (4) | 0.0124 (5) | −0.0055 (4) |
O2 | 0.0410 (6) | 0.0397 (5) | 0.0546 (6) | −0.0075 (4) | −0.0011 (5) | 0.0132 (5) |
O3 | 0.0362 (6) | 0.0881 (9) | 0.0573 (7) | 0.0048 (6) | 0.0153 (5) | −0.0010 (6) |
C1—C2 | 1.382 (2) | C14—O2 | 1.2135 (16) |
C1—C6 | 1.386 (2) | C14—C15 | 1.4986 (17) |
C1—H1 | 0.9300 | C15—C24 | 1.3737 (19) |
C2—C3 | 1.373 (3) | C15—C16 | 1.417 (2) |
C2—H2 | 0.9300 | C16—C17 | 1.420 (2) |
C3—C4 | 1.370 (3) | C16—C21 | 1.422 (2) |
C3—H3 | 0.9300 | C17—C18 | 1.360 (2) |
C4—C5 | 1.385 (3) | C17—H17 | 0.9300 |
C4—H4 | 0.9300 | C18—C19 | 1.388 (3) |
C5—C6 | 1.390 (2) | C18—H18 | 0.9300 |
C5—H5 | 0.9300 | C19—C20 | 1.355 (3) |
C6—C7 | 1.483 (2) | C19—H19 | 0.9300 |
C7—O1 | 1.2156 (16) | C20—C21 | 1.419 (3) |
C7—C8 | 1.5041 (17) | C20—H20 | 0.9300 |
C8—C9 | 1.3891 (18) | C21—C22 | 1.402 (3) |
C8—C13 | 1.3971 (18) | C22—C23 | 1.352 (3) |
C9—C10 | 1.383 (2) | C22—H22 | 0.9300 |
C9—H9 | 0.9300 | C23—C24 | 1.415 (2) |
C10—C11 | 1.374 (2) | C23—H23 | 0.9300 |
C10—H10 | 0.9300 | C24—O3 | 1.3589 (19) |
C11—C12 | 1.382 (2) | C25—O3 | 1.420 (2) |
C11—H11 | 0.9300 | C25—H25A | 0.9600 |
C12—C13 | 1.3945 (17) | C25—H25B | 0.9600 |
C12—H12 | 0.9300 | C25—H25C | 0.9600 |
C13—C14 | 1.4915 (17) | ||
C2—C1—C6 | 120.42 (15) | O2—C14—C15 | 122.34 (11) |
C2—C1—H1 | 119.8 | C13—C14—C15 | 116.77 (11) |
C6—C1—H1 | 119.8 | C24—C15—C16 | 120.62 (12) |
C3—C2—C1 | 120.02 (18) | C24—C15—C14 | 119.56 (12) |
C3—C2—H2 | 120.0 | C16—C15—C14 | 119.78 (12) |
C1—C2—H2 | 120.0 | C15—C16—C17 | 122.35 (13) |
C4—C3—C2 | 120.05 (18) | C15—C16—C21 | 118.97 (14) |
C4—C3—H3 | 120.0 | C17—C16—C21 | 118.66 (14) |
C2—C3—H3 | 120.0 | C18—C17—C16 | 120.63 (17) |
C3—C4—C5 | 120.67 (17) | C18—C17—H17 | 119.7 |
C3—C4—H4 | 119.7 | C16—C17—H17 | 119.7 |
C5—C4—H4 | 119.7 | C17—C18—C19 | 120.7 (2) |
C4—C5—C6 | 119.65 (17) | C17—C18—H18 | 119.6 |
C4—C5—H5 | 120.2 | C19—C18—H18 | 119.6 |
C6—C5—H5 | 120.2 | C20—C19—C18 | 120.66 (19) |
C1—C6—C5 | 119.15 (14) | C20—C19—H19 | 119.7 |
C1—C6—C7 | 120.43 (12) | C18—C19—H19 | 119.7 |
C5—C6—C7 | 120.41 (13) | C19—C20—C21 | 121.09 (18) |
O1—C7—C6 | 122.44 (12) | C19—C20—H20 | 119.5 |
O1—C7—C8 | 119.89 (12) | C21—C20—H20 | 119.5 |
C6—C7—C8 | 117.48 (11) | C22—C21—C20 | 123.45 (16) |
C9—C8—C13 | 119.21 (12) | C22—C21—C16 | 118.35 (15) |
C9—C8—C7 | 117.00 (11) | C20—C21—C16 | 118.19 (18) |
C13—C8—C7 | 123.56 (11) | C23—C22—C21 | 122.22 (14) |
C10—C9—C8 | 120.56 (13) | C23—C22—H22 | 118.9 |
C10—C9—H9 | 119.7 | C21—C22—H22 | 118.9 |
C8—C9—H9 | 119.7 | C22—C23—C24 | 119.96 (15) |
C11—C10—C9 | 120.46 (13) | C22—C23—H23 | 120.0 |
C11—C10—H10 | 119.8 | C24—C23—H23 | 120.0 |
C9—C10—H10 | 119.8 | O3—C24—C15 | 116.51 (12) |
C10—C11—C12 | 119.67 (13) | O3—C24—C23 | 123.58 (14) |
C10—C11—H11 | 120.2 | C15—C24—C23 | 119.86 (15) |
C12—C11—H11 | 120.2 | O3—C25—H25A | 109.5 |
C11—C12—C13 | 120.70 (13) | O3—C25—H25B | 109.5 |
C11—C12—H12 | 119.6 | H25A—C25—H25B | 109.5 |
C13—C12—H12 | 119.6 | O3—C25—H25C | 109.5 |
C12—C13—C8 | 119.39 (11) | H25A—C25—H25C | 109.5 |
C12—C13—C14 | 120.00 (11) | H25B—C25—H25C | 109.5 |
C8—C13—C14 | 120.45 (11) | C24—O3—C25 | 118.82 (14) |
O2—C14—C13 | 120.88 (11) | ||
C6—C1—C2—C3 | 1.2 (3) | O2—C14—C15—C24 | 73.13 (18) |
C1—C2—C3—C4 | 0.2 (3) | C13—C14—C15—C24 | −105.93 (14) |
C2—C3—C4—C5 | −1.1 (3) | O2—C14—C15—C16 | −109.33 (16) |
C3—C4—C5—C6 | 0.5 (3) | C13—C14—C15—C16 | 71.61 (16) |
C2—C1—C6—C5 | −1.8 (2) | C24—C15—C16—C17 | −177.12 (14) |
C2—C1—C6—C7 | 177.37 (15) | C14—C15—C16—C17 | 5.4 (2) |
C4—C5—C6—C1 | 0.9 (2) | C24—C15—C16—C21 | 1.5 (2) |
C4—C5—C6—C7 | −178.24 (15) | C14—C15—C16—C21 | −175.97 (12) |
C1—C6—C7—O1 | −154.41 (14) | C15—C16—C17—C18 | 179.22 (16) |
C5—C6—C7—O1 | 24.7 (2) | C21—C16—C17—C18 | 0.6 (2) |
C1—C6—C7—C8 | 30.61 (18) | C16—C17—C18—C19 | 0.9 (3) |
C5—C6—C7—C8 | −150.25 (13) | C17—C18—C19—C20 | −1.1 (3) |
O1—C7—C8—C9 | −104.93 (15) | C18—C19—C20—C21 | −0.3 (3) |
C6—C7—C8—C9 | 70.18 (16) | C19—C20—C21—C22 | −178.64 (18) |
O1—C7—C8—C13 | 69.48 (17) | C19—C20—C21—C16 | 1.7 (3) |
C6—C7—C8—C13 | −115.41 (14) | C15—C16—C21—C22 | −0.2 (2) |
C13—C8—C9—C10 | −0.9 (2) | C17—C16—C21—C22 | 178.51 (14) |
C7—C8—C9—C10 | 173.74 (13) | C15—C16—C21—C20 | 179.46 (14) |
C8—C9—C10—C11 | 0.2 (2) | C17—C16—C21—C20 | −1.8 (2) |
C9—C10—C11—C12 | 0.1 (2) | C20—C21—C22—C23 | 179.24 (16) |
C10—C11—C12—C13 | 0.2 (2) | C16—C21—C22—C23 | −1.1 (2) |
C11—C12—C13—C8 | −0.9 (2) | C21—C22—C23—C24 | 1.1 (2) |
C11—C12—C13—C14 | 174.35 (13) | C16—C15—C24—O3 | −178.97 (12) |
C9—C8—C13—C12 | 1.28 (19) | C14—C15—C24—O3 | −1.45 (19) |
C7—C8—C13—C12 | −173.02 (12) | C16—C15—C24—C23 | −1.6 (2) |
C9—C8—C13—C14 | −174.00 (12) | C14—C15—C24—C23 | 175.93 (13) |
C7—C8—C13—C14 | 11.71 (19) | C22—C23—C24—O3 | 177.46 (15) |
C12—C13—C14—O2 | −158.80 (14) | C22—C23—C24—C15 | 0.3 (2) |
C8—C13—C14—O2 | 16.44 (19) | C15—C24—O3—C25 | −170.97 (15) |
C12—C13—C14—C15 | 20.27 (18) | C23—C24—O3—C25 | 11.8 (2) |
C8—C13—C14—C15 | −164.48 (12) |
Cg1 is the centroid of the C8–C13 ring. |
D—H···A | D—H | H···A | D···A | D—H···A |
C10—H10···O1i | 0.93 | 2.58 | 3.288 (2) | 134 |
C19—H19···Cg1ii | 0.93 | 2.77 | 3.585 (3) | 147 |
Symmetry codes: (i) x, y+1, z; (ii) x, −y+1/2, z−3/2. |
Experimental details
Crystal data | |
Chemical formula | C25H18O3 |
Mr | 366.39 |
Crystal system, space group | Monoclinic, P21/c |
Temperature (K) | 295 |
a, b, c (Å) | 15.0592 (7), 7.6768 (3), 16.9274 (8) |
β (°) | 106.137 (2) |
V (Å3) | 1879.81 (15) |
Z | 4 |
Radiation type | Mo Kα |
µ (mm−1) | 0.08 |
Crystal size (mm) | 0.30 × 0.25 × 0.20 |
Data collection | |
Diffractometer | Bruker Kappa APEX II CCD |
Absorption correction | – |
No. of measured, independent and observed [I > 2σ(I)] reflections | 22918, 5339, 3546 |
Rint | 0.026 |
(sin θ/λ)max (Å−1) | 0.698 |
Refinement | |
R[F2 > 2σ(F2)], wR(F2), S | 0.046, 0.142, 1.00 |
No. of reflections | 5339 |
No. of parameters | 254 |
H-atom treatment | H-atom parameters constrained |
Δρmax, Δρmin (e Å−3) | 0.28, −0.17 |
Computer programs: APEX2 (Bruker, 2008), SAINT (Bruker, 2008), SHELXS97 (Sheldrick, 2008), ORTEP-3 (Farrugia, 1997), SHELXL97 (Sheldrick, 2008) and PLATON (Spek, 2009).
Cg1 is the centroid of the C8–C13 ring. |
D—H···A | D—H | H···A | D···A | D—H···A |
C10—H10···O1i | 0.93 | 2.58 | 3.288 (2) | 134 |
C19—H19···Cg1ii | 0.93 | 2.77 | 3.585 (3) | 147 |
Symmetry codes: (i) x, y+1, z; (ii) x, −y+1/2, z−3/2. |
Acknowledgements
GJ and KS thank Dr Babu Varghese, SAIF, IIT, Chennai, India, for the
data collection and Dr V. Murugan, Head of the Department of Physics, for providing facilities in the department to carry out this work.References
Bennett, I., Broom, N. J. P., Cassels, R., Elder, J. S., Masson, N. D. & O'Hanlon, P. J. (1999). Bioorg. Med. Chem. Lett. 9, 1847–1852. Web of Science CrossRef PubMed CAS 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
Jagadeesan, G., Sethusankar, K., Sivasakthikumaran, R. & Mohanakrishnan, A. K. (2011). Acta Cryst. E67, o2177. Web of Science CSD CrossRef IUCr Journals Google Scholar
Liang, F. S., Zhou, Q. G., Cheng, Y. X., Wang, L. X., Ma, D. G., Jing, X. B. & Wang, F. S. (2003). Chem. Mater. 15, 1935–1937. Web of Science CrossRef CAS Google Scholar
Sheldrick, G. M. (2008). Acta Cryst. A64, 112–122. Web of Science CrossRef CAS IUCr Journals Google Scholar
Spek, A. L. (2009). Acta Cryst. D65, 148–155. Web of Science CrossRef CAS IUCr Journals Google Scholar
Tsumuki, T., Hijikata, D., Okamoto, A., Oike, H. & Yonezawa, N. (2011). Acta Cryst. E67, o2095. Web of Science CSD CrossRef IUCr Journals Google Scholar
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Diketones are employed as effective chelating reagents for a large number of metallic systems (Liang et al., 2003). They are also popular in organic synthesis, for their applications in biology, medicine and also known to exhibit antioxidant, antitumour and antibacterial activities (Bennett et al., 1999).
The molecular structure of the title compound C25H18O3, is shown at Fig. 1. The central phenyl ring (C8–C13) forms dihedral angles of 87.4 (5)° and 85.4 (4)° with the phenyl ring (C1–C6) and naphthalene moiety (C15–C24), respectively. The central phenyl ring (C8–C13) forms dihedral angles of 70.2 (5)° and 18.9 (5)° with the mean plane of the ketone groups (C6–C8/O1) and (C13–C15/O2), respectively. The dihedral angles between the naphthalene moiety (C15–C24) and phenyl ring (C1–C6) is 26.9 (4)°. The bond lengths and bond angles are normal and correspond to those observed in (2-benzoylphenyl)- (3,4-dimethylphenyl)-methanone (Jagadeesan et al., 2011).
The two benzene rings (C15/16/C21–C24) and (C16–C21) are almost coplanar with dihedral angle of 1.54 (6)° between them. The atoms C25, O2 and O3 are having deviations of 0.213 (2)Å, 0.821 (1)Å and -0.013 (1)Å from the mean plane of the methoxy substituted naphthalene moiety (C15–C24), respectively. The atom O1 deviates by 0.508 (1)Å from the plane of the phenyl ring (C1–C6). The title compound exhibits the structural similarities with the reported related structures (Tsumuki et al., 2011; Jagadeesan et al., 2011).
In crystal packing, the molecules are linked via C10–H10···O1i intermolecular interaction, which generates a C(6) chain. The crystal packing further stabilized by C19—H19···Cg1ii interaction, where Cg1 is center of gravity of (C8–C13) ring (Table 1). Symmetry codes: (i) x, y+1, z; (ii) x, -y+1/2, z-3/2. The packing view of the compound is shown in (Fig. 2).