organic compounds
(E,E)-1,5-Di-2-thienylpenta-1,4-dien-3-one
aDepartment of Physics, Thanthai Periyar Government Institute of Technology, Vellore 632 002, India, bDepartment of Physics, SMK Fomra Institute of Technology, Thaiyur, Chennai 603 103, India, cDepartment of Physics, Presidency College (Autonomous), Chennai 600 005, India, and dDepartment of Analytical Chemistry, University of Madras, Guindy Campus, Chennai 600 025, India
*Correspondence e-mail: a_spandian@yahoo.com
In the title compound, C13H10OS2, the dihedral angle between the thiophene rings is 14.3 (1)°. The molecular structure is stabilized by C—H⋯π interactions between a thiophene H atom and an adjacent thiophene ring, and by intermolecular C—H⋯O hydrogen bonds.
Related literature
For the bioactivity of et al. (2005). For uses in organic solid-state see: Gould et al. (1995); For a related structure, see: Arshad et al. (2008). For the non-linear optical properties of bis-chalcones, see: Uchida et al. (1998).
see: GoExperimental
Crystal data
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Refinement
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Data collection: APEX2 (Bruker, 2004); cell APEX2 and SAINT (Bruker, 2004); data reduction: SAINT and XPREP (Bruker, 2004); 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, 2003).
Supporting information
10.1107/S1600536808026603/lx2066sup1.cif
contains datablocks global, I. DOI:Structure factors: contains datablock I. DOI: 10.1107/S1600536808026603/lx2066Isup2.hkl
A solution of sodium hydroxide (10 g, 0.25 mol) in water (50 ml) was added to a solution of acetone (5 ml) and 2-thiophenecarboxaldehyde (22.4 g, 0.2 mol) in methanol (50 ml) at 273 K. This mixture was stirred overnight and the product was filtered. Single crystals suitable for X-ray diffraction was obtained by slow evaporation of a solution of the title compound in ethyl acetate.
All H atoms were fixed geometrically and allowed to ride on their parent atoms, with N—H=0.86Å and C—H= 0.93–0.98Å with Uiso(H)= 1.5Ueq(methyl H) and 1.2Ueq(for other H atoms).
Data collection: APEX2 (Bruker, 2004); cell
APEX2 and SAINT (Bruker, 2004); data reduction: SAINT and XPREP (Bruker, 2004); 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, 2003).C13H10OS2 | F(000) = 1024 |
Mr = 246.35 | Dx = 1.332 Mg m−3 |
Orthorhombic, Pbca | Mo Kα radiation, λ = 0.71073 Å |
Hall symbol: -P 2ac 2ab | Cell parameters from 10259 reflections |
a = 12.1141 (4) Å | θ = 2.3–30.3° |
b = 7.4449 (3) Å | µ = 0.41 mm−1 |
c = 27.246 (1) Å | T = 293 K |
V = 2457.27 (16) Å3 | Block, colourless |
Z = 8 | 0.26 × 0.15 × 0.15 mm |
Bruker APEXII CCD area-detector diffractometer | 2373 independent reflections |
Radiation source: fine-focus sealed tube | 1719 reflections with I > 2σ(I) |
Graphite monochromator | Rint = 0.023 |
Detector resolution: 10 pixels mm-1 | θmax = 26.0°, θmin = 1.5° |
ω scans | h = −11→14 |
Absorption correction: multi-scan (SADABS; Sheldrick, 1996) | k = −7→9 |
Tmin = 0.984, Tmax = 0.987 | l = −32→31 |
13976 measured reflections |
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)] = 0.057 | Hydrogen site location: inferred from neighbouring sites |
wR(F2) = 0.211 | H-atom parameters constrained |
S = 1.01 | w = 1/[σ2(Fo2) + (0.1295P)2 + 1.4091P] where P = (Fo2 + 2Fc2)/3 |
2373 reflections | (Δ/σ)max < 0.001 |
145 parameters | Δρmax = 0.49 e Å−3 |
0 restraints | Δρmin = −0.36 e Å−3 |
C13H10OS2 | V = 2457.27 (16) Å3 |
Mr = 246.35 | Z = 8 |
Orthorhombic, Pbca | Mo Kα radiation |
a = 12.1141 (4) Å | µ = 0.41 mm−1 |
b = 7.4449 (3) Å | T = 293 K |
c = 27.246 (1) Å | 0.26 × 0.15 × 0.15 mm |
Bruker APEXII CCD area-detector diffractometer | 2373 independent reflections |
Absorption correction: multi-scan (SADABS; Sheldrick, 1996) | 1719 reflections with I > 2σ(I) |
Tmin = 0.984, Tmax = 0.987 | Rint = 0.023 |
13976 measured reflections |
R[F2 > 2σ(F2)] = 0.057 | 0 restraints |
wR(F2) = 0.211 | H-atom parameters constrained |
S = 1.01 | Δρmax = 0.49 e Å−3 |
2373 reflections | Δρmin = −0.36 e Å−3 |
145 parameters |
Geometry. All esds (except the esd in the dihedral angle between two l.s. planes) are estimated using the full covariance matrix. The cell esds are taken into account individually in the estimation of esds in distances, angles and torsion angles; correlations between esds in cell parameters are only used when they are defined by crystal symmetry. An approximate (isotropic) treatment of cell esds is used for estimating esds 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 > 2sigma(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 | ||
S1 | 0.52710 (7) | 0.54328 (13) | 0.23889 (4) | 0.0733 (4) | |
S2 | 0.53529 (8) | 0.23805 (14) | 0.51370 (4) | 0.0801 (4) | |
O1 | 0.82061 (18) | 0.5548 (4) | 0.38920 (9) | 0.0734 (7) | |
C1 | 0.5312 (3) | 0.2113 (6) | 0.57495 (18) | 0.0876 (13) | |
H1 | 0.4768 | 0.1455 | 0.5910 | 0.105* | |
C2 | 0.6135 (4) | 0.2934 (6) | 0.59817 (16) | 0.0907 (12) | |
H2 | 0.6209 | 0.2904 | 0.6321 | 0.109* | |
C3 | 0.6903 (3) | 0.3874 (5) | 0.56716 (12) | 0.0667 (9) | |
H3 | 0.7525 | 0.4507 | 0.5773 | 0.080* | |
C4 | 0.6519 (3) | 0.3642 (4) | 0.51665 (13) | 0.0612 (8) | |
C5 | 0.7055 (3) | 0.4350 (4) | 0.47339 (13) | 0.0610 (8) | |
H5 | 0.7755 | 0.4843 | 0.4774 | 0.073* | |
C6 | 0.6638 (3) | 0.4359 (4) | 0.42854 (13) | 0.0612 (8) | |
H6 | 0.5938 | 0.3881 | 0.4236 | 0.073* | |
C7 | 0.7236 (2) | 0.5093 (4) | 0.38617 (12) | 0.0573 (8) | |
C8 | 0.6611 (2) | 0.5283 (4) | 0.34019 (12) | 0.0594 (8) | |
H8 | 0.5901 | 0.4810 | 0.3384 | 0.071* | |
C9 | 0.7027 (2) | 0.6109 (4) | 0.30106 (12) | 0.0565 (7) | |
H9 | 0.7733 | 0.6583 | 0.3045 | 0.068* | |
C10 | 0.6513 (2) | 0.6354 (4) | 0.25413 (12) | 0.0536 (7) | |
C11 | 0.6974 (2) | 0.7299 (4) | 0.21337 (11) | 0.0541 (7) | |
H11 | 0.7653 | 0.7882 | 0.2132 | 0.065* | |
C12 | 0.6228 (3) | 0.7207 (6) | 0.17301 (14) | 0.0794 (10) | |
H12 | 0.6364 | 0.7764 | 0.1431 | 0.095* | |
C13 | 0.5322 (3) | 0.6260 (6) | 0.18183 (15) | 0.0774 (11) | |
H13 | 0.4771 | 0.6074 | 0.1586 | 0.093* |
U11 | U22 | U33 | U12 | U13 | U23 | |
S1 | 0.0542 (6) | 0.0750 (6) | 0.0909 (8) | −0.0090 (4) | −0.0089 (4) | −0.0068 (5) |
S2 | 0.0619 (6) | 0.0821 (7) | 0.0962 (9) | −0.0065 (4) | 0.0047 (4) | 0.0076 (5) |
O1 | 0.0483 (13) | 0.1008 (18) | 0.0710 (16) | −0.0067 (11) | 0.0009 (10) | −0.0029 (12) |
C1 | 0.069 (2) | 0.090 (3) | 0.103 (3) | 0.0109 (19) | 0.018 (2) | 0.033 (2) |
C2 | 0.091 (3) | 0.113 (3) | 0.068 (2) | 0.012 (3) | 0.000 (2) | 0.013 (2) |
C3 | 0.071 (2) | 0.073 (2) | 0.056 (2) | −0.0057 (16) | −0.0001 (15) | 0.0110 (15) |
C4 | 0.0558 (17) | 0.0542 (15) | 0.074 (2) | 0.0020 (13) | 0.0024 (14) | 0.0003 (14) |
C5 | 0.0527 (16) | 0.0593 (17) | 0.071 (2) | −0.0027 (13) | −0.0005 (15) | −0.0028 (14) |
C6 | 0.0510 (16) | 0.0621 (17) | 0.071 (2) | −0.0018 (13) | 0.0012 (14) | −0.0036 (15) |
C7 | 0.0497 (17) | 0.0576 (16) | 0.065 (2) | 0.0021 (13) | 0.0033 (13) | −0.0081 (14) |
C8 | 0.0467 (15) | 0.0646 (17) | 0.067 (2) | −0.0029 (13) | 0.0012 (14) | −0.0081 (15) |
C9 | 0.0435 (14) | 0.0592 (16) | 0.067 (2) | −0.0007 (12) | −0.0031 (13) | −0.0097 (14) |
C10 | 0.0457 (15) | 0.0511 (14) | 0.0641 (19) | 0.0013 (12) | −0.0020 (13) | −0.0103 (13) |
C11 | 0.0442 (14) | 0.0624 (17) | 0.0558 (18) | −0.0046 (12) | −0.0030 (12) | −0.0082 (13) |
C12 | 0.081 (2) | 0.096 (3) | 0.062 (2) | 0.013 (2) | 0.0044 (18) | −0.0026 (18) |
C13 | 0.063 (2) | 0.091 (3) | 0.078 (3) | 0.0085 (18) | −0.0146 (17) | −0.022 (2) |
S1—C13 | 1.673 (5) | C6—C7 | 1.468 (5) |
S1—C10 | 1.704 (3) | C6—H6 | 0.9300 |
S2—C1 | 1.682 (5) | C7—C8 | 1.471 (5) |
S2—C4 | 1.699 (3) | C8—C9 | 1.330 (5) |
O1—C7 | 1.225 (4) | C8—H8 | 0.9300 |
C1—C2 | 1.330 (6) | C9—C10 | 1.434 (4) |
C1—H1 | 0.9300 | C9—H9 | 0.9300 |
C2—C3 | 1.438 (5) | C10—C11 | 1.429 (4) |
C2—H2 | 0.9300 | C11—C12 | 1.425 (5) |
C3—C4 | 1.463 (5) | C11—H11 | 0.9300 |
C3—H3 | 0.9300 | C12—C13 | 1.326 (5) |
C4—C5 | 1.445 (5) | C12—H12 | 0.9300 |
C5—C6 | 1.322 (5) | C13—H13 | 0.9300 |
C5—H5 | 0.9300 | ||
C13—S1—C10 | 92.62 (17) | O1—C7—C8 | 121.6 (3) |
C1—S2—C4 | 92.5 (2) | C6—C7—C8 | 116.8 (3) |
C2—C1—S2 | 113.3 (3) | C9—C8—C7 | 122.1 (3) |
C2—C1—H1 | 123.3 | C9—C8—H8 | 118.9 |
S2—C1—H1 | 123.3 | C7—C8—H8 | 118.9 |
C1—C2—C3 | 115.4 (4) | C8—C9—C10 | 127.5 (3) |
C1—C2—H2 | 122.3 | C8—C9—H9 | 116.3 |
C3—C2—H2 | 122.3 | C10—C9—H9 | 116.3 |
C2—C3—C4 | 106.8 (3) | C9—C10—C11 | 125.9 (3) |
C2—C3—H3 | 126.6 | C9—C10—S1 | 123.3 (2) |
C4—C3—H3 | 126.6 | C11—C10—S1 | 110.7 (2) |
C5—C4—C3 | 125.6 (3) | C12—C11—C10 | 109.1 (3) |
C5—C4—S2 | 122.5 (3) | C12—C11—H11 | 125.4 |
C3—C4—S2 | 112.0 (2) | C10—C11—H11 | 125.4 |
C6—C5—C4 | 125.7 (3) | C13—C12—C11 | 114.2 (4) |
C6—C5—H5 | 117.1 | C13—C12—H12 | 122.9 |
C4—C5—H5 | 117.1 | C11—C12—H12 | 122.9 |
C5—C6—C7 | 122.7 (3) | C12—C13—S1 | 113.3 (3) |
C5—C6—H6 | 118.7 | C12—C13—H13 | 123.4 |
C7—C6—H6 | 118.7 | S1—C13—H13 | 123.4 |
O1—C7—C6 | 121.5 (3) | ||
C4—S2—C1—C2 | 0.3 (4) | O1—C7—C8—C9 | −6.5 (5) |
S2—C1—C2—C3 | −0.5 (5) | C6—C7—C8—C9 | 172.5 (3) |
C1—C2—C3—C4 | 0.5 (5) | C7—C8—C9—C10 | 178.8 (3) |
C2—C3—C4—C5 | −179.2 (3) | C8—C9—C10—C11 | 177.9 (3) |
C2—C3—C4—S2 | −0.3 (4) | C8—C9—C10—S1 | −5.4 (4) |
C1—S2—C4—C5 | 179.0 (3) | C13—S1—C10—C9 | −177.9 (3) |
C1—S2—C4—C3 | 0.1 (3) | C13—S1—C10—C11 | −0.8 (2) |
C3—C4—C5—C6 | −170.2 (3) | C9—C10—C11—C12 | 178.5 (3) |
S2—C4—C5—C6 | 11.1 (5) | S1—C10—C11—C12 | 1.5 (3) |
C4—C5—C6—C7 | −179.5 (3) | C10—C11—C12—C13 | −1.6 (4) |
C5—C6—C7—O1 | 8.6 (5) | C11—C12—C13—S1 | 1.0 (4) |
C5—C6—C7—C8 | −170.4 (3) | C10—S1—C13—C12 | −0.1 (3) |
D—H···A | D—H | H···A | D···A | D—H···A |
C1—H1···O1i | 0.93 | 2.47 | 3.374 (5) | 165 |
C13—H13···O1ii | 0.93 | 2.33 | 3.255 (4) | 171 |
C11—H11···Cgiii | 0.93 | 3.12 | 3.936 (5) | 148 |
Symmetry codes: (i) x−1/2, −y+1/2, −z+1; (ii) x−1/2, y, −z+1/2; (iii) −x+3/2, y+1/2, z. |
Experimental details
Crystal data | |
Chemical formula | C13H10OS2 |
Mr | 246.35 |
Crystal system, space group | Orthorhombic, Pbca |
Temperature (K) | 293 |
a, b, c (Å) | 12.1141 (4), 7.4449 (3), 27.246 (1) |
V (Å3) | 2457.27 (16) |
Z | 8 |
Radiation type | Mo Kα |
µ (mm−1) | 0.41 |
Crystal size (mm) | 0.26 × 0.15 × 0.15 |
Data collection | |
Diffractometer | Bruker APEXII CCD area-detector diffractometer |
Absorption correction | Multi-scan (SADABS; Sheldrick, 1996) |
Tmin, Tmax | 0.984, 0.987 |
No. of measured, independent and observed [I > 2σ(I)] reflections | 13976, 2373, 1719 |
Rint | 0.023 |
(sin θ/λ)max (Å−1) | 0.617 |
Refinement | |
R[F2 > 2σ(F2)], wR(F2), S | 0.057, 0.211, 1.01 |
No. of reflections | 2373 |
No. of parameters | 145 |
H-atom treatment | H-atom parameters constrained |
Δρmax, Δρmin (e Å−3) | 0.49, −0.36 |
Computer programs: APEX2 (Bruker, 2004), APEX2 and SAINT (Bruker, 2004), SAINT and XPREP (Bruker, 2004), SHELXS97 (Sheldrick, 2008), ORTEP-3 (Farrugia (1997), SHELXL97 (Sheldrick, 2008) and PLATON (Spek, 2003).
D—H···A | D—H | H···A | D···A | D—H···A |
C1—H1···O1i | 0.93 | 2.47 | 3.374 (5) | 164.5 |
C13—H13···O1ii | 0.93 | 2.33 | 3.255 (4) | 171.1 |
C11—H11···Cgiii | 0.93 | 3.12 | 3.936 (5) | 147.8 |
Symmetry codes: (i) x−1/2, −y+1/2, −z+1; (ii) x−1/2, y, −z+1/2; (iii) −x+3/2, y+1/2, z. |
Acknowledgements
SM and ASP thank Dr S. Pandi, Head of the Department of Physics, Presidency College (Autonomous), Chennai, for providing the necessary facilities.
References
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Chalcones with the general formula Ar—CH═CH—CO—Ar are an important class of compounds, with the common structural entity being the central –CH═CH—C(═O)- group, in the H atoms can be substituted. The –C═C– double bond can be photoreactive and can produce various products through solid-state photo cycloaddition. Therefore, chalcones are widely used in organic solid-state photochemistry (Gould et al., 1995). Reviews on the bioactivities of various chalcones have been reported (Go et al., 2005). Bis-chalcones are also found to exhibit good NLO properties (Uchida et al., 1998). In view of this biological importance, the crystal structure of the title compound (I), (1E, 4E)-1,5-Bis(2-thienyl)penta-1,4-dien-3-one (Fig. 1) has been determined and the results are presented here.
Compound (I) consists of two thiophene rings A and B. The central position of (I) shows double and single bonds orientating from O1 atom and five C atom behave like a backbone. The planarities of rings A and B are fairly good. The bond lengths in the (I) are normal and comparable with the corresponding values observed in the related structure (Arshad et al., 2008). The dihedral angle between the two thiophene rings is 14.3 (1)°. The crystal packing (Fig. 2) is stabilized by C—H···π interactions between a thiophene H atom and a neighbouring thiophene ring, with a C11—H11···Cgiii separetion of 2.34 Å (Fig. 2 and Table 1; Cg is the centroid of the C10/C11/C12/C13/S1 thiophene ring, symmetry code as in Fig. 2). The molecular packing is further stabilized by intermolecular C—H···O hydrogen bonds (Fig. 2 and Table 1; symmetry code as in Fig. 2).