organic compounds
(Z)-2-[(E)-2-(1-Benzothiophen-3-ylmethylidene)hydrazin-1-ylidene]-1,2-diphenylethanone
aDepartment of Physics, Faculty of Arts and Sciences, Ondokuz Mayıs University, Kurupelit, TR-55139 Samsun, Turkey, bDepartment of Chemistry, Faculty of Arts and Sciences, Ondokuz Mayıs University, Kurupelit, TR-55139 Samsun, Turkey, and cDepartment of Physics, Arts and Science Faculty, Giresun University, Giresun, Turkey
*Correspondence e-mail: merve.pekdemir@oposta.omu.edu.tr
The title compound, C23H16N2OS, is not planar, the phenyl ring of the benzoyl group making a dihedral of 77.61 (7)° with the benzothiophene system ring. The benzothiophene system and the remaining phenyl ring make an angle of 12.71 (13)°. The conformation around the imine functions is E for the C=N bond towards the benzothiophene system and Z for the C=N bond towards the benzoyl group. The packing of the molecules shows C—H⋯π interactions. A weak intramolecular C—H⋯N bond also occurs.
Related literature
For general background to benzothiophenes, see: Katritzky et al. (1996); Shishoo & Jain (1992). For the biological properties of see: Barton & Ollis (1979); Layer (1963); Ingold (1969). For industrial applications of Shiff bases, see: Taggi et al. (2002). For related structures, see: Dege et al. (2006, 2007); Demirtaş et al. (2009); Gül et al. (2007). For structural properties of benzothiophene derivatives, see: Inamoto et al. (2008); Mlochowski & Potaczek (2009); Novopoltseva (1995). For reference bond-length data, see: Allen et al. (1987).
Experimental
Crystal data
|
Refinement
|
Data collection: CrysAlis PRO (Oxford Diffraction, 2007); cell CrysAlis PRO; data reduction: CrysAlis PRO; program(s) used to solve structure: SHELXS97 (Sheldrick, 2008); program(s) used to refine structure: SHELXL97 (Sheldrick, 2008); molecular graphics: ORTEP-3 for Windows (Farrugia, 1997); software used to prepare material for publication: WinGX (Farrugia, 1999).
Supporting information
https://doi.org/10.1107/S1600536812030978/vm2179sup1.cif
contains datablocks I, global. DOI:Structure factors: contains datablock I. DOI: https://doi.org/10.1107/S1600536812030978/vm2179Isup2.hkl
Supporting information file. DOI: https://doi.org/10.1107/S1600536812030978/vm2179Isup3.cml
The compound (2Z)-2-[(2E)-(1-benzothiophen-3-ylmethylidene)hydrazinylidene] -1,2 diphenylethanone was prepared by refluxing a mixture of a solution containing 1-benzothiophene-3-carbaldehyde (0.012 g, 0.074 mmol) in 20 ml ethanol and a solution containing benzyl monohydrazone (0.017 g, 0.074 mmol) in 20 ml ethanol. The reaction mixture was stirred for 1 h under reflux. The crystals of (2Z)-2-[(2E)-(1-benzothiophen-3-ylmethylidene) hydrazinylidene]-1,2-diphenylethanone suitable for X-ray analysis were obtained from ethanol by slow evaporation (yield % 61; m.p 135–137 °C).
All H atoms were placed in calculated positions and constrained to ride on their parents atoms, with C—H = 0.93 Å and Uiso(H)=1.2Ueq(C).
Schiff bases, i.e., compounds having a double C═N bond, are used as starting materials in the synthesis of important drugs, such as antibiotics and antiallergic, antiphlogistic and antitumor substances (Barton & Ollis, 1979; Layer, 1963; Ingold, 1969). On the industrial scale, they have a wide range of applications, such as dyes and pigments (Taggi et al., 2002) and components of rubber compounds (Novopoltseva, 1995).
Benzothiophenes are significant heterocyles either as biological active or luminescent molecules (Shishoo & Jain, 1992; Katritzky et al., 1996). Recently, new effective methods for the synthesis of benzothiophens have been developed (Inamoto et al., 2008; Mlochowski & Potaczek, 2009). In this work, we report the
of a benzothiophene derivate containing C=N bonds.The molecular structure is not planar (Fig.1), the dihedral angle between the C1—C6 benzene ring and the C9—C14 benzene ring is 89.59 (16)°. However, the dihedral angle between the C1—C6 benzene ring and the C18—C23 benzene ring is 12.62 (16)°. The thiophene ring is actually planar (maximum deviation 0.0132 (17) Å) and the dihedral angle between the benzene ring with thiophene ring is 1.05 (12)°. The benzothiophene ring system (C16—C23/S1) makes dihedral angles with the benzene rings of 12.71 (13)° for C1—C6 benzene ring and 77.62 (11)° for C9—C14 benzene ring.
The N═C double bond legths are 1.281 (3) Å for N1═C7 and 1.276 (3) Å for N2═C15. These are typical of double bonds, like to the matching bond length in (E)-2-[(3-trifluoromenthylphenylimino)methyl]-4-methylphenol [1.280 (2) Å; Gül et al., 2007]. The C8═O1 bond length indicates the presence of a normal double C═O bond (Allen et al., 1987). The C17—S1 and C19—S1 bond distances are 1.704 (2) Å and 1.733 (2) Å, respectively. The C—S bond distances are compatible with the literature (Dege et al., 2006, 2007; Demirtaş et al., 2009).
The molecules are packged by C—H···π and π···π interactions.
For general background to benzothiophenes, see: Katritzky et al. (1996); Shishoo & Jain (1992). For the biological properties of
see: Barton & Ollis (1979); Layer (1963); Ingold (1969). For industrial applications of Shiff bases, see: Taggi et al. (2002). For related structures, see: Allen et al. (1987); Dege et al. (2006, 2007); Demirtaş et al. (2009); Gül et al. (2007). For structural properties of benzothiophene derivatives, see: Inamoto et al. (2008); Mlochowski & Potaczek (2009); Novopoltseva (1995).Data collection: CrysAlis PRO (Oxford Diffraction, 2007); cell
CrysAlis PRO (Oxford Diffraction, 2007); data reduction: CrysAlis PRO (Oxford Diffraction, 2007); program(s) used to solve structure: SHELXS97 (Sheldrick, 2008); program(s) used to refine structure: SHELXL97 (Sheldrick, 2008); molecular graphics: ORTEP-3 for Windows (Farrugia, 1997); software used to prepare material for publication: WinGX (Farrugia, 1999).Fig. 1. The molecular structure of the title compound, showing the atom-numbering scheme. Displacement ellipsoids are drawn at the 30% probability. |
C23H16N2OS | F(000) = 768 |
Mr = 368.44 | Dx = 1.282 Mg m−3 |
Monoclinic, P21/c | Mo Kα radiation, λ = 0.71073 Å |
Hall symbol: -P 2ybc | Cell parameters from 2365 reflections |
a = 17.1009 (7) Å | θ = 3.2–27.5° |
b = 8.7700 (4) Å | µ = 0.18 mm−1 |
c = 13.1170 (6) Å | T = 293 K |
β = 103.898 (4)° | Plate, yellow |
V = 1909.63 (15) Å3 | 0.30 × 0.15 × 0.10 mm |
Z = 4 |
Oxford Diffraction SuperNova (single source at offset) Eos diffractometer | 3815 independent reflections |
Radiation source: fine-focus sealed tube | 2566 reflections with I > 2σ(I) |
Graphite monochromator | Rint = 0.025 |
Detector resolution: 16.0454 pixels mm-1 | θmax = 27.6°, θmin = 3.2° |
ω scans | h = −22→21 |
Absorption correction: multi-scan (CrysAlis PRO; Oxford Diffraction, 2007) | k = −10→6 |
Tmin = 0.843, Tmax = 1.000 | l = −15→16 |
7369 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)] = 0.054 | Hydrogen site location: inferred from neighbouring sites |
wR(F2) = 0.121 | H-atom parameters constrained |
S = 1.07 | w = 1/[σ2(Fo2) + (0.0328P)2 + 0.4842P] where P = (Fo2 + 2Fc2)/3 |
3815 reflections | (Δ/σ)max = 0.002 |
244 parameters | Δρmax = 0.20 e Å−3 |
0 restraints | Δρmin = −0.24 e Å−3 |
C23H16N2OS | V = 1909.63 (15) Å3 |
Mr = 368.44 | Z = 4 |
Monoclinic, P21/c | Mo Kα radiation |
a = 17.1009 (7) Å | µ = 0.18 mm−1 |
b = 8.7700 (4) Å | T = 293 K |
c = 13.1170 (6) Å | 0.30 × 0.15 × 0.10 mm |
β = 103.898 (4)° |
Oxford Diffraction SuperNova (single source at offset) Eos diffractometer | 3815 independent reflections |
Absorption correction: multi-scan (CrysAlis PRO; Oxford Diffraction, 2007) | 2566 reflections with I > 2σ(I) |
Tmin = 0.843, Tmax = 1.000 | Rint = 0.025 |
7369 measured reflections |
R[F2 > 2σ(F2)] = 0.054 | 0 restraints |
wR(F2) = 0.121 | H-atom parameters constrained |
S = 1.07 | Δρmax = 0.20 e Å−3 |
3815 reflections | Δρmin = −0.24 e Å−3 |
244 parameters |
Geometry. All e.s.d.'s (except the e.s.d. in the dihedral angle between two l.s. planes) are estimated using the full covariance matrix. The cell e.s.d.'s are taken into account individually in the estimation of e.s.d.'s in distances, angles and torsion angles; correlations between e.s.d.'s in cell parameters are only used when they are defined by crystal symmetry. An approximate (isotropic) treatment of cell e.s.d.'s is used for estimating e.s.d.'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 | 0.63404 (17) | 0.2840 (3) | 0.5699 (2) | 0.0696 (8) | |
H1 | 0.6819 | 0.2657 | 0.5501 | 0.083* | |
C2 | 0.5635 (2) | 0.2214 (4) | 0.5132 (3) | 0.0925 (10) | |
H2 | 0.5638 | 0.1615 | 0.4548 | 0.111* | |
C3 | 0.4926 (2) | 0.2463 (5) | 0.5417 (3) | 0.1115 (13) | |
H3 | 0.4451 | 0.2028 | 0.5030 | 0.134* | |
C4 | 0.49182 (19) | 0.3354 (5) | 0.6271 (3) | 0.1178 (14) | |
H4 | 0.4437 | 0.3526 | 0.6465 | 0.141* | |
C5 | 0.56261 (17) | 0.4000 (4) | 0.6846 (3) | 0.0901 (10) | |
H5 | 0.5618 | 0.4610 | 0.7423 | 0.108* | |
C6 | 0.63441 (15) | 0.3744 (3) | 0.6568 (2) | 0.0588 (7) | |
C7 | 0.71001 (14) | 0.4422 (3) | 0.71807 (18) | 0.0516 (6) | |
C8 | 0.71003 (13) | 0.5224 (3) | 0.82084 (19) | 0.0522 (6) | |
C9 | 0.70993 (13) | 0.6910 (3) | 0.82297 (19) | 0.0507 (6) | |
C10 | 0.69128 (16) | 0.7746 (3) | 0.7316 (2) | 0.0640 (7) | |
H10 | 0.6795 | 0.7249 | 0.6671 | 0.077* | |
C11 | 0.68997 (18) | 0.9321 (3) | 0.7350 (3) | 0.0817 (9) | |
H11 | 0.6760 | 0.9881 | 0.6731 | 0.098* | |
C12 | 0.70923 (18) | 1.0052 (4) | 0.8298 (3) | 0.0875 (10) | |
H12 | 0.7079 | 1.1112 | 0.8322 | 0.105* | |
C13 | 0.73038 (17) | 0.9241 (4) | 0.9211 (3) | 0.0811 (9) | |
H13 | 0.7454 | 0.9747 | 0.9851 | 0.097* | |
C14 | 0.72938 (15) | 0.7666 (3) | 0.9182 (2) | 0.0657 (7) | |
H14 | 0.7418 | 0.7113 | 0.9805 | 0.079* | |
C15 | 0.90807 (14) | 0.4568 (3) | 0.73987 (18) | 0.0508 (6) | |
H15 | 0.9073 | 0.3914 | 0.6838 | 0.061* | |
C16 | 0.98486 (13) | 0.5071 (2) | 0.80241 (17) | 0.0453 (5) | |
C17 | 1.05487 (14) | 0.4515 (3) | 0.78494 (18) | 0.0541 (6) | |
H17 | 1.0562 | 0.3823 | 0.7316 | 0.065* | |
C18 | 1.08272 (13) | 0.6305 (3) | 0.93254 (17) | 0.0460 (6) | |
C19 | 1.00005 (13) | 0.6127 (2) | 0.88917 (16) | 0.0413 (5) | |
C20 | 0.94578 (15) | 0.6956 (3) | 0.93244 (17) | 0.0506 (6) | |
H20 | 0.8905 | 0.6849 | 0.9060 | 0.061* | |
C21 | 0.97565 (17) | 0.7928 (3) | 1.01439 (19) | 0.0620 (7) | |
H21 | 0.9401 | 0.8490 | 1.0430 | 0.074* | |
C22 | 1.05794 (19) | 0.8089 (3) | 1.0555 (2) | 0.0688 (8) | |
H22 | 1.0764 | 0.8758 | 1.1111 | 0.083* | |
C23 | 1.11240 (17) | 0.7285 (3) | 1.01580 (19) | 0.0601 (7) | |
H23 | 1.1675 | 0.7391 | 1.0437 | 0.072* | |
N1 | 0.77520 (12) | 0.4280 (2) | 0.68712 (15) | 0.0569 (5) | |
N2 | 0.84100 (12) | 0.4976 (2) | 0.75772 (15) | 0.0533 (5) | |
O1 | 0.70894 (11) | 0.4453 (2) | 0.89756 (14) | 0.0710 (5) | |
S1 | 1.13984 (4) | 0.51911 (8) | 0.86872 (5) | 0.0595 (2) |
U11 | U22 | U33 | U12 | U13 | U23 | |
C1 | 0.0639 (18) | 0.0671 (18) | 0.0739 (18) | −0.0102 (15) | 0.0091 (15) | −0.0083 (15) |
C2 | 0.077 (2) | 0.096 (2) | 0.093 (2) | −0.015 (2) | −0.0014 (19) | −0.024 (2) |
C3 | 0.063 (2) | 0.132 (3) | 0.122 (3) | −0.022 (2) | −0.013 (2) | −0.023 (3) |
C4 | 0.0462 (19) | 0.166 (4) | 0.135 (3) | −0.015 (2) | 0.011 (2) | −0.035 (3) |
C5 | 0.0543 (18) | 0.113 (3) | 0.101 (2) | −0.0033 (18) | 0.0145 (17) | −0.023 (2) |
C6 | 0.0498 (15) | 0.0572 (16) | 0.0660 (16) | −0.0034 (13) | 0.0075 (13) | 0.0031 (14) |
C7 | 0.0488 (14) | 0.0463 (14) | 0.0569 (15) | 0.0009 (12) | 0.0073 (12) | 0.0034 (12) |
C8 | 0.0380 (13) | 0.0612 (16) | 0.0553 (15) | 0.0007 (12) | 0.0070 (11) | 0.0053 (13) |
C9 | 0.0399 (13) | 0.0557 (15) | 0.0561 (14) | 0.0034 (12) | 0.0104 (11) | 0.0000 (13) |
C10 | 0.0716 (18) | 0.0583 (17) | 0.0625 (16) | −0.0013 (15) | 0.0166 (14) | 0.0042 (14) |
C11 | 0.083 (2) | 0.064 (2) | 0.097 (2) | 0.0007 (17) | 0.0186 (18) | 0.0164 (18) |
C12 | 0.074 (2) | 0.0573 (19) | 0.127 (3) | −0.0005 (17) | 0.015 (2) | −0.008 (2) |
C13 | 0.069 (2) | 0.075 (2) | 0.092 (2) | 0.0066 (17) | 0.0054 (17) | −0.0267 (19) |
C14 | 0.0563 (16) | 0.075 (2) | 0.0629 (17) | 0.0112 (15) | 0.0092 (13) | −0.0056 (15) |
C15 | 0.0536 (15) | 0.0504 (14) | 0.0488 (13) | −0.0037 (12) | 0.0131 (11) | −0.0048 (11) |
C16 | 0.0461 (13) | 0.0443 (13) | 0.0479 (13) | −0.0011 (11) | 0.0160 (11) | 0.0011 (11) |
C17 | 0.0550 (15) | 0.0565 (15) | 0.0537 (14) | −0.0022 (13) | 0.0186 (12) | −0.0079 (12) |
C18 | 0.0497 (14) | 0.0420 (13) | 0.0460 (13) | −0.0021 (11) | 0.0109 (11) | 0.0067 (11) |
C19 | 0.0481 (13) | 0.0365 (12) | 0.0411 (12) | −0.0003 (11) | 0.0143 (10) | 0.0061 (10) |
C20 | 0.0559 (15) | 0.0472 (14) | 0.0503 (14) | 0.0045 (12) | 0.0160 (12) | 0.0057 (12) |
C21 | 0.078 (2) | 0.0545 (16) | 0.0563 (16) | 0.0100 (15) | 0.0221 (14) | −0.0039 (13) |
C22 | 0.091 (2) | 0.0583 (17) | 0.0535 (16) | −0.0025 (17) | 0.0094 (15) | −0.0092 (13) |
C23 | 0.0635 (17) | 0.0570 (16) | 0.0543 (15) | −0.0085 (14) | 0.0034 (13) | 0.0044 (13) |
N1 | 0.0458 (12) | 0.0620 (13) | 0.0592 (13) | −0.0024 (11) | 0.0055 (10) | −0.0073 (11) |
N2 | 0.0465 (11) | 0.0583 (13) | 0.0533 (12) | −0.0032 (11) | 0.0085 (9) | −0.0067 (10) |
O1 | 0.0777 (13) | 0.0735 (12) | 0.0623 (11) | 0.0000 (10) | 0.0175 (10) | 0.0162 (10) |
S1 | 0.0460 (4) | 0.0669 (5) | 0.0675 (4) | 0.0005 (3) | 0.0172 (3) | −0.0010 (3) |
C1—C2 | 1.371 (4) | C12—H12 | 0.9300 |
C1—C6 | 1.387 (3) | C13—C14 | 1.381 (4) |
C1—H1 | 0.9300 | C13—H13 | 0.9300 |
C2—C3 | 1.369 (4) | C14—H14 | 0.9300 |
C2—H2 | 0.9300 | C15—N2 | 1.276 (3) |
C3—C4 | 1.369 (4) | C15—C16 | 1.440 (3) |
C3—H3 | 0.9300 | C15—H15 | 0.9300 |
C4—C5 | 1.384 (4) | C16—C17 | 1.362 (3) |
C4—H4 | 0.9300 | C16—C19 | 1.442 (3) |
C5—C6 | 1.380 (4) | C17—S1 | 1.704 (2) |
C5—H5 | 0.9300 | C17—H17 | 0.9300 |
C6—C7 | 1.474 (3) | C18—C23 | 1.386 (3) |
C7—N1 | 1.281 (3) | C18—C19 | 1.400 (3) |
C7—C8 | 1.521 (3) | C18—S1 | 1.733 (2) |
C8—O1 | 1.217 (3) | C19—C20 | 1.402 (3) |
C8—C9 | 1.479 (3) | C20—C21 | 1.371 (3) |
C9—C10 | 1.376 (3) | C20—H20 | 0.9300 |
C9—C14 | 1.383 (3) | C21—C22 | 1.388 (4) |
C10—C11 | 1.382 (4) | C21—H21 | 0.9300 |
C10—H10 | 0.9300 | C22—C23 | 1.367 (4) |
C11—C12 | 1.367 (4) | C22—H22 | 0.9300 |
C11—H11 | 0.9300 | C23—H23 | 0.9300 |
C12—C13 | 1.364 (4) | N1—N2 | 1.413 (3) |
C2—C1—C6 | 120.3 (3) | C12—C13—C14 | 119.9 (3) |
C2—C1—H1 | 119.8 | C12—C13—H13 | 120.0 |
C6—C1—H1 | 119.8 | C14—C13—H13 | 120.0 |
C3—C2—C1 | 120.6 (3) | C13—C14—C9 | 120.2 (3) |
C3—C2—H2 | 119.7 | C13—C14—H14 | 119.9 |
C1—C2—H2 | 119.7 | C9—C14—H14 | 119.9 |
C2—C3—C4 | 119.9 (3) | N2—C15—C16 | 123.1 (2) |
C2—C3—H3 | 120.1 | N2—C15—H15 | 118.4 |
C4—C3—H3 | 120.1 | C16—C15—H15 | 118.4 |
C3—C4—C5 | 120.0 (3) | C17—C16—C15 | 120.8 (2) |
C3—C4—H4 | 120.0 | C17—C16—C19 | 111.3 (2) |
C5—C4—H4 | 120.0 | C15—C16—C19 | 127.8 (2) |
C6—C5—C4 | 120.4 (3) | C16—C17—S1 | 114.51 (18) |
C6—C5—H5 | 119.8 | C16—C17—H17 | 122.7 |
C4—C5—H5 | 119.8 | S1—C17—H17 | 122.7 |
C5—C6—C1 | 118.7 (3) | C23—C18—C19 | 122.2 (2) |
C5—C6—C7 | 120.7 (3) | C23—C18—S1 | 126.00 (19) |
C1—C6—C7 | 120.6 (2) | C19—C18—S1 | 111.85 (17) |
N1—C7—C6 | 120.3 (2) | C18—C19—C20 | 118.7 (2) |
N1—C7—C8 | 120.7 (2) | C18—C19—C16 | 111.42 (19) |
C6—C7—C8 | 118.9 (2) | C20—C19—C16 | 129.9 (2) |
O1—C8—C9 | 122.7 (2) | C21—C20—C19 | 118.8 (2) |
O1—C8—C7 | 118.6 (2) | C21—C20—H20 | 120.6 |
C9—C8—C7 | 118.7 (2) | C19—C20—H20 | 120.6 |
C10—C9—C14 | 119.2 (2) | C20—C21—C22 | 121.3 (2) |
C10—C9—C8 | 121.2 (2) | C20—C21—H21 | 119.3 |
C14—C9—C8 | 119.7 (2) | C22—C21—H21 | 119.3 |
C9—C10—C11 | 120.4 (3) | C23—C22—C21 | 121.3 (2) |
C9—C10—H10 | 119.8 | C23—C22—H22 | 119.4 |
C11—C10—H10 | 119.8 | C21—C22—H22 | 119.4 |
C12—C11—C10 | 119.8 (3) | C22—C23—C18 | 117.8 (2) |
C12—C11—H11 | 120.1 | C22—C23—H23 | 121.1 |
C10—C11—H11 | 120.1 | C18—C23—H23 | 121.1 |
C13—C12—C11 | 120.5 (3) | C7—N1—N2 | 111.53 (19) |
C13—C12—H12 | 119.7 | C15—N2—N1 | 111.59 (19) |
C11—C12—H12 | 119.7 | C17—S1—C18 | 90.89 (11) |
C6—C1—C2—C3 | −0.4 (5) | C8—C9—C14—C13 | 179.3 (2) |
C1—C2—C3—C4 | 0.5 (6) | N2—C15—C16—C17 | 175.2 (2) |
C2—C3—C4—C5 | −0.1 (6) | N2—C15—C16—C19 | −3.0 (4) |
C3—C4—C5—C6 | −0.4 (6) | C15—C16—C17—S1 | −178.11 (17) |
C4—C5—C6—C1 | 0.5 (5) | C19—C16—C17—S1 | 0.3 (3) |
C4—C5—C6—C7 | −179.7 (3) | C23—C18—C19—C20 | −0.7 (3) |
C2—C1—C6—C5 | −0.1 (4) | S1—C18—C19—C20 | 180.00 (15) |
C2—C1—C6—C7 | −179.9 (3) | C23—C18—C19—C16 | 178.8 (2) |
C5—C6—C7—N1 | −174.5 (3) | S1—C18—C19—C16 | −0.4 (2) |
C1—C6—C7—N1 | 5.3 (4) | C17—C16—C19—C18 | 0.1 (3) |
C5—C6—C7—C8 | 8.4 (4) | C15—C16—C19—C18 | 178.4 (2) |
C1—C6—C7—C8 | −171.8 (2) | C17—C16—C19—C20 | 179.6 (2) |
N1—C7—C8—O1 | −101.5 (3) | C15—C16—C19—C20 | −2.1 (4) |
C6—C7—C8—O1 | 75.6 (3) | C18—C19—C20—C21 | 1.0 (3) |
N1—C7—C8—C9 | 79.5 (3) | C16—C19—C20—C21 | −178.4 (2) |
C6—C7—C8—C9 | −103.3 (3) | C19—C20—C21—C22 | −0.7 (4) |
O1—C8—C9—C10 | −163.7 (2) | C20—C21—C22—C23 | 0.0 (4) |
C7—C8—C9—C10 | 15.1 (3) | C21—C22—C23—C18 | 0.4 (4) |
O1—C8—C9—C14 | 16.7 (3) | C19—C18—C23—C22 | 0.0 (3) |
C7—C8—C9—C14 | −164.4 (2) | S1—C18—C23—C22 | 179.19 (19) |
C14—C9—C10—C11 | −1.7 (4) | C6—C7—N1—N2 | −178.57 (19) |
C8—C9—C10—C11 | 178.8 (2) | C8—C7—N1—N2 | −1.5 (3) |
C9—C10—C11—C12 | 1.6 (4) | C16—C15—N2—N1 | −178.0 (2) |
C10—C11—C12—C13 | 0.5 (5) | C7—N1—N2—C15 | 166.1 (2) |
C11—C12—C13—C14 | −2.5 (5) | C16—C17—S1—C18 | −0.51 (19) |
C12—C13—C14—C9 | 2.4 (4) | C23—C18—S1—C17 | −178.7 (2) |
C10—C9—C14—C13 | −0.3 (4) | C19—C18—S1—C17 | 0.54 (17) |
Cg3 and Cg4 are the centroids of the C9–C14 and C18–C23 rings, respectively. |
D—H···A | D—H | H···A | D···A | D—H···A |
C20—H20···N2 | 0.93 | 2.53 | 3.083 (3) | 118 |
C4—H4···Cg3i | 0.93 | 2.74 | 3.648 (4) | 167 |
C15—H15···Cg4ii | 0.93 | 3.00 | 3.879 (3) | 158 |
Symmetry codes: (i) −x+1, y−1/2, −z+3/2; (ii) −x+2, y−1/2, −z+3/2. |
Experimental details
Crystal data | |
Chemical formula | C23H16N2OS |
Mr | 368.44 |
Crystal system, space group | Monoclinic, P21/c |
Temperature (K) | 293 |
a, b, c (Å) | 17.1009 (7), 8.7700 (4), 13.1170 (6) |
β (°) | 103.898 (4) |
V (Å3) | 1909.63 (15) |
Z | 4 |
Radiation type | Mo Kα |
µ (mm−1) | 0.18 |
Crystal size (mm) | 0.30 × 0.15 × 0.10 |
Data collection | |
Diffractometer | Oxford Diffraction SuperNova (single source at offset) Eos |
Absorption correction | Multi-scan (CrysAlis PRO; Oxford Diffraction, 2007) |
Tmin, Tmax | 0.843, 1.000 |
No. of measured, independent and observed [I > 2σ(I)] reflections | 7369, 3815, 2566 |
Rint | 0.025 |
(sin θ/λ)max (Å−1) | 0.651 |
Refinement | |
R[F2 > 2σ(F2)], wR(F2), S | 0.054, 0.121, 1.07 |
No. of reflections | 3815 |
No. of parameters | 244 |
H-atom treatment | H-atom parameters constrained |
Δρmax, Δρmin (e Å−3) | 0.20, −0.24 |
Computer programs: CrysAlis PRO (Oxford Diffraction, 2007), SHELXS97 (Sheldrick, 2008), SHELXL97 (Sheldrick, 2008), ORTEP-3 for Windows (Farrugia, 1997), WinGX (Farrugia, 1999).
Cg3 and Cg4 are the centroids of the C9–C14 and C18–C23 rings, respectively. |
D—H···A | D—H | H···A | D···A | D—H···A |
C20—H20···N2 | 0.93 | 2.53 | 3.083 (3) | 118.3 |
C4—H4···Cg3i | 0.93 | 2.74 | 3.648 (4) | 167 |
C15—H15···Cg4ii | 0.93 | 3.00 | 3.879 (3) | 158 |
Symmetry codes: (i) −x+1, y−1/2, −z+3/2; (ii) −x+2, y−1/2, −z+3/2. |
Acknowledgements
The authors acknowledge the Faculty of Arts and Sciences, Giresun University, Turkey, for the use of the diffractometer.
References
Allen, F. H., Kennard, O., Watson, D. G., Brammer, L., Orpen, A. G. & Taylor, R. (1987). J. Chem. Soc. Perkin Trans. 2, pp. S1–19. CSD CrossRef Web of Science Google Scholar
Barton, D. & Ollis, W. D. (1979). Comprehensive Organic Chemistry, Vol 2. Oxford: Pergamon. Google Scholar
Dege, N., Içbudak, H. & Adıyaman, E. (2006). Acta Cryst. C62, m401–m403. Web of Science CSD CrossRef CAS IUCr Journals Google Scholar
Dege, N., Içbudak, H. & Adıyaman, E. (2007). Acta Cryst. C63, m13–m15. Web of Science CSD CrossRef IUCr Journals Google Scholar
Demirtaş, G., Dege, N., Şekerci, M., Servi, S. & Dinçer, M. (2009). Acta Cryst. E65, o1668. Web of Science CSD CrossRef IUCr Journals Google Scholar
Farrugia, L. J. (1997). J. Appl. Cryst. 30, 565. CrossRef IUCr Journals Google Scholar
Farrugia, L. J. (1999). J. Appl. Cryst. 32, 837–838. CrossRef CAS IUCr Journals Google Scholar
Gül, Z. S., Erşahin, F., Ağar, E. & Işık, Ş. (2007). Acta Cryst. E63, o2902. Web of Science CSD CrossRef IUCr Journals Google Scholar
Inamoto, C. K., Arai, Y., Hiroya, K. & Doi, T. (2008). Chem. Commun. pp. 5529–5531. Web of Science CrossRef Google Scholar
Ingold, C. K. (1969). In Structure and Mechanism in Organic Chemistry, 2nd ed. Ithaca, New York: Cornell University Press. Google Scholar
Katritzky, A. R., Rees, C. W. & Scriven, E. F. V. (1996). Editors. Comprehensive Heterocyclic Chemistry, Vol. 2. pp. 679–729. Oxford: Pergamon Press. Google Scholar
Layer, R. W. (1963). Chem. Rev. 63, 489–510. CrossRef CAS Web of Science Google Scholar
Mlochowski, J. & Potaczek, P. (2009). Phosphorus Sulfur Slicon Relat. Elem. 184, 1115–1123. CAS Google Scholar
Novopoltseva, O. M. (1995). Candidate of Sciences (Chemistry) dissertation, University of Volgograd, Russian Federation. Google Scholar
Oxford Diffraction (2007). CrysAlis PRO. Oxford Diffraction Ltd, Abingdon, England. Google Scholar
Sheldrick, G. M. (2008). Acta Cryst. A64, 112–122. Web of Science CrossRef CAS IUCr Journals Google Scholar
Shishoo, C. J. & Jain, K. S. (1992). J. Heterocycl. Chem. 29, 883–893. CrossRef CAS Google Scholar
Taggi, A. E., Hafez, A. M., Wack, H., Young, B., Ferraris, D. & Lectka, T. (2002). J. Am. Chem. Soc. 124, 6626–6635. Web of Science CrossRef PubMed CAS 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.
Schiff bases, i.e., compounds having a double C═N bond, are used as starting materials in the synthesis of important drugs, such as antibiotics and antiallergic, antiphlogistic and antitumor substances (Barton & Ollis, 1979; Layer, 1963; Ingold, 1969). On the industrial scale, they have a wide range of applications, such as dyes and pigments (Taggi et al., 2002) and components of rubber compounds (Novopoltseva, 1995).
Benzothiophenes are significant heterocyles either as biological active or luminescent molecules (Shishoo & Jain, 1992; Katritzky et al., 1996). Recently, new effective methods for the synthesis of benzothiophens have been developed (Inamoto et al., 2008; Mlochowski & Potaczek, 2009). In this work, we report the crystal structure of a benzothiophene derivate containing C=N bonds.
The molecular structure is not planar (Fig.1), the dihedral angle between the C1—C6 benzene ring and the C9—C14 benzene ring is 89.59 (16)°. However, the dihedral angle between the C1—C6 benzene ring and the C18—C23 benzene ring is 12.62 (16)°. The thiophene ring is actually planar (maximum deviation 0.0132 (17) Å) and the dihedral angle between the benzene ring with thiophene ring is 1.05 (12)°. The benzothiophene ring system (C16—C23/S1) makes dihedral angles with the benzene rings of 12.71 (13)° for C1—C6 benzene ring and 77.62 (11)° for C9—C14 benzene ring.
The N═C double bond legths are 1.281 (3) Å for N1═C7 and 1.276 (3) Å for N2═C15. These are typical of double bonds, like to the matching bond length in (E)-2-[(3-trifluoromenthylphenylimino)methyl]-4-methylphenol [1.280 (2) Å; Gül et al., 2007]. The C8═O1 bond length indicates the presence of a normal double C═O bond (Allen et al., 1987). The C17—S1 and C19—S1 bond distances are 1.704 (2) Å and 1.733 (2) Å, respectively. The C—S bond distances are compatible with the literature (Dege et al., 2006, 2007; Demirtaş et al., 2009).
The molecules are packged by C—H···π and π···π interactions.