organic compounds
3-[(2-Formylthiophen-3-yl)(hydroxy)methyl]thiophene-2-carbaldehyde
aSchool of Chemical Engineering, Changchun University of Technology, Changchun 130012, People's Republic of China, and bSchool of Chemistry, Jilin University, Changchun 130012, People's Republic of China
*Correspondence e-mail: liguijuan@mail.ccut.edu.cn
In the title compound, C11H8O3S2, the dihedral angle between the mean planes of the two thiophene rings is 65.10 (10)°. Intramolecular C—H⋯O interactions form S(6) and S(7) ring motifs. In the crystal, chains along the a axis are formed by C—H⋯O interactions. Adjacent chains are connected into a three-dimensional network by C—H⋯O and O—H⋯O interactions.
Related literature
For details and applications of thiophene-based ); Guarín et al. (2007); Herbivo et al. (2009); Jain et al. (2010). For hydrogen-bonding motifs, see: Bernstein et al. (1995). For optical applications of formyl thiophene derivatives, see: Raposo & Kirsch (2003); Raposo et al. (2004). For related Schiff base compounds reported by our group, see: Su et al. (2007a,b,c, 2009).
see: Basu & Das (2011Experimental
Crystal data
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Refinement
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Data collection: SMART (Bruker, 1998); cell SAINT (Bruker, 1998); data reduction: SAINT; program(s) used to solve structure: SHELXS97 (Sheldrick, 2008); program(s) used to refine structure: SHELXL97 (Sheldrick, 2008); molecular graphics: SHELXTL (Sheldrick, 2008); software used to prepare material for publication: SHELXTL.
Supporting information
10.1107/S1600536811052500/mw2040sup1.cif
contains datablocks global, I. DOI:Structure factors: contains datablock I. DOI: 10.1107/S1600536811052500/mw2040Isup2.hkl
Supporting information file. DOI: 10.1107/S1600536811052500/mw2040Isup3.cml
Compound (I) was synthesized from thiophene-3-carbaldehyde, n-BuLi, 3-bromothiophene and ethyl formate via a one-pot reaction (manuscript in preparation). It was crystallized slowly from ethanol at 298 K.
The C-bound H atoms were positioned geometrically with C—H = 0.93 (aromatic and carbonyl carbons) and 0.98 (methine) Å, and allowed to ride on their parent atoms in the riding model approximation with Uiso(H) = 1.2 Ueq(C). The atom H1 was located in a difference map and included as a riding contribution with O—H adjusted to 0.82 Å and with UUiso(H) = 1.2 UUeq(O).
Data collection: SMART (Bruker, 1998); cell
SAINT (Bruker, 1998); data reduction: SAINT (Bruker, 1998); program(s) used to solve structure: SHELXS97 (Sheldrick, 2008); program(s) used to refine structure: SHELXL97 (Sheldrick, 2008); molecular graphics: SHELXTL (Sheldrick, 2008); software used to prepare material for publication: SHELXTL (Sheldrick, 2008).C11H8O3S2 | F(000) = 520 |
Mr = 252.29 | Dx = 1.554 Mg m−3 |
Monoclinic, P21/c | Mo Kα radiation, λ = 0.71073 Å |
Hall symbol: -P 2ybc | Cell parameters from 2097 reflections |
a = 7.6227 (18) Å | θ = 2.5–26.1° |
b = 10.136 (2) Å | µ = 0.48 mm−1 |
c = 14.272 (3) Å | T = 293 K |
β = 101.998 (4)° | Block, yellow |
V = 1078.7 (4) Å3 | 0.26 × 0.24 × 0.21 mm |
Z = 4 |
Bruker SMART APEX CCD area-detector diffractometer | 2122 independent reflections |
Radiation source: fine-focus sealed tube | 1798 reflections with I > 2σ(I) |
Graphite monochromator | Rint = 0.025 |
Detector resolution: 9.00 pixels mm-1 | θmax = 26.1°, θmin = 2.5° |
phi and ω scans | h = −8→9 |
Absorption correction: multi-scan (SADABS; Bruker, 2001) | k = −10→12 |
Tmin = 0.886, Tmax = 0.906 | l = −17→17 |
6687 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)] = 0.041 | Hydrogen site location: inferred from neighbouring sites |
wR(F2) = 0.100 | H-atom parameters constrained |
S = 1.03 | w = 1/[σ2(Fo2) + (0.0511P)2 + 0.3301P] where P = (Fo2 + 2Fc2)/3 |
2122 reflections | (Δ/σ)max < 0.001 |
145 parameters | Δρmax = 0.31 e Å−3 |
0 restraints | Δρmin = −0.17 e Å−3 |
C11H8O3S2 | V = 1078.7 (4) Å3 |
Mr = 252.29 | Z = 4 |
Monoclinic, P21/c | Mo Kα radiation |
a = 7.6227 (18) Å | µ = 0.48 mm−1 |
b = 10.136 (2) Å | T = 293 K |
c = 14.272 (3) Å | 0.26 × 0.24 × 0.21 mm |
β = 101.998 (4)° |
Bruker SMART APEX CCD area-detector diffractometer | 2122 independent reflections |
Absorption correction: multi-scan (SADABS; Bruker, 2001) | 1798 reflections with I > 2σ(I) |
Tmin = 0.886, Tmax = 0.906 | Rint = 0.025 |
6687 measured reflections |
R[F2 > 2σ(F2)] = 0.041 | 0 restraints |
wR(F2) = 0.100 | H-atom parameters constrained |
S = 1.03 | Δρmax = 0.31 e Å−3 |
2122 reflections | Δρmin = −0.17 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 | 0.18693 (8) | 0.05474 (6) | 0.40611 (4) | 0.0483 (2) | |
S2 | 0.35779 (8) | 0.71529 (6) | 0.45073 (4) | 0.04438 (19) | |
O1 | 0.2719 (2) | 0.41275 (16) | 0.18884 (10) | 0.0461 (4) | |
H1 | 0.2189 | 0.3605 | 0.1490 | 0.069* | |
O3 | −0.0407 (2) | 0.72325 (18) | 0.41728 (12) | 0.0549 (5) | |
C2 | 0.2269 (3) | 0.2727 (2) | 0.32022 (14) | 0.0333 (5) | |
O2 | −0.1559 (2) | 0.3386 (2) | 0.33753 (15) | 0.0696 (6) | |
C1 | 0.1038 (3) | 0.2063 (2) | 0.36192 (15) | 0.0364 (5) | |
C8 | 0.2905 (3) | 0.5135 (2) | 0.33862 (14) | 0.0328 (5) | |
C11 | 0.0174 (3) | 0.6327 (2) | 0.37609 (15) | 0.0434 (5) | |
H11 | −0.0644 | 0.5759 | 0.3388 | 0.052* | |
C7 | 0.2056 (3) | 0.6090 (2) | 0.38216 (14) | 0.0356 (5) | |
C5 | −0.0793 (3) | 0.2385 (3) | 0.36692 (18) | 0.0480 (6) | |
H5 | −0.1425 | 0.1769 | 0.3951 | 0.058* | |
C9 | 0.4790 (3) | 0.5276 (2) | 0.36272 (15) | 0.0391 (5) | |
H9 | 0.5582 | 0.4716 | 0.3407 | 0.047* | |
C4 | 0.3810 (3) | 0.0795 (2) | 0.36802 (17) | 0.0487 (6) | |
H4 | 0.4740 | 0.0184 | 0.3759 | 0.058* | |
C6 | 0.1976 (3) | 0.4072 (2) | 0.27314 (14) | 0.0344 (5) | |
H6 | 0.0688 | 0.4260 | 0.2560 | 0.041* | |
C10 | 0.5322 (3) | 0.6320 (2) | 0.42159 (16) | 0.0435 (5) | |
H10 | 0.6517 | 0.6553 | 0.4436 | 0.052* | |
C3 | 0.3852 (3) | 0.1982 (2) | 0.32482 (16) | 0.0424 (5) | |
H3 | 0.4825 | 0.2276 | 0.3006 | 0.051* |
U11 | U22 | U33 | U12 | U13 | U23 | |
S1 | 0.0545 (4) | 0.0366 (4) | 0.0535 (4) | 0.0026 (3) | 0.0109 (3) | 0.0055 (3) |
S2 | 0.0443 (3) | 0.0373 (3) | 0.0493 (4) | −0.0010 (2) | 0.0045 (2) | −0.0050 (3) |
O1 | 0.0513 (10) | 0.0534 (10) | 0.0367 (8) | −0.0124 (8) | 0.0166 (7) | −0.0050 (7) |
O3 | 0.0456 (10) | 0.0604 (12) | 0.0575 (10) | 0.0198 (8) | 0.0077 (8) | −0.0096 (9) |
C2 | 0.0316 (11) | 0.0347 (12) | 0.0339 (11) | −0.0004 (8) | 0.0072 (8) | −0.0061 (9) |
O2 | 0.0489 (11) | 0.0614 (13) | 0.1079 (16) | 0.0157 (9) | 0.0376 (10) | 0.0192 (11) |
C1 | 0.0396 (11) | 0.0329 (12) | 0.0374 (11) | 0.0024 (9) | 0.0094 (9) | −0.0012 (9) |
C8 | 0.0331 (11) | 0.0305 (11) | 0.0348 (10) | 0.0013 (8) | 0.0073 (8) | 0.0064 (8) |
C11 | 0.0395 (12) | 0.0456 (14) | 0.0435 (12) | 0.0073 (10) | 0.0050 (10) | −0.0002 (10) |
C7 | 0.0346 (11) | 0.0351 (12) | 0.0355 (11) | 0.0012 (9) | 0.0040 (8) | 0.0025 (9) |
C5 | 0.0430 (13) | 0.0479 (15) | 0.0586 (15) | −0.0019 (11) | 0.0229 (11) | 0.0016 (12) |
C9 | 0.0322 (11) | 0.0417 (13) | 0.0451 (12) | 0.0005 (9) | 0.0118 (9) | 0.0047 (10) |
C4 | 0.0418 (13) | 0.0418 (14) | 0.0599 (15) | 0.0112 (10) | 0.0047 (11) | −0.0057 (11) |
C6 | 0.0306 (10) | 0.0379 (12) | 0.0358 (11) | −0.0001 (9) | 0.0094 (8) | 0.0012 (9) |
C10 | 0.0326 (11) | 0.0455 (14) | 0.0513 (13) | −0.0065 (10) | 0.0061 (9) | 0.0060 (11) |
C3 | 0.0327 (11) | 0.0430 (13) | 0.0519 (13) | 0.0018 (10) | 0.0098 (10) | −0.0056 (11) |
S1—C4 | 1.698 (3) | C8—C9 | 1.414 (3) |
S1—C1 | 1.730 (2) | C8—C6 | 1.503 (3) |
S2—C10 | 1.698 (2) | C11—C7 | 1.439 (3) |
S2—C7 | 1.730 (2) | C11—H11 | 0.9300 |
O1—C6 | 1.434 (2) | C5—H5 | 0.9300 |
O1—H1 | 0.8200 | C9—C10 | 1.359 (3) |
O3—C11 | 1.222 (3) | C9—H9 | 0.9300 |
C2—C1 | 1.386 (3) | C4—C3 | 1.355 (3) |
C2—C3 | 1.414 (3) | C4—H4 | 0.9300 |
C2—C6 | 1.515 (3) | C6—H6 | 0.9800 |
O2—C5 | 1.201 (3) | C10—H10 | 0.9300 |
C1—C5 | 1.450 (3) | C3—H3 | 0.9300 |
C8—C7 | 1.383 (3) | ||
C4—S1—C1 | 91.70 (11) | C1—C5—H5 | 117.4 |
C10—S2—C7 | 91.10 (11) | C10—C9—C8 | 112.8 (2) |
C6—O1—H1 | 109.5 | C10—C9—H9 | 123.6 |
C1—C2—C3 | 111.6 (2) | C8—C9—H9 | 123.6 |
C1—C2—C6 | 125.23 (18) | C3—C4—S1 | 112.42 (18) |
C3—C2—C6 | 123.17 (19) | C3—C4—H4 | 123.8 |
C2—C1—C5 | 131.0 (2) | S1—C4—H4 | 123.8 |
C2—C1—S1 | 111.02 (16) | O1—C6—C8 | 106.03 (16) |
C5—C1—S1 | 117.75 (17) | O1—C6—C2 | 111.10 (17) |
C7—C8—C9 | 111.52 (19) | C8—C6—C2 | 111.21 (16) |
C7—C8—C6 | 125.27 (18) | O1—C6—H6 | 109.5 |
C9—C8—C6 | 123.21 (19) | C8—C6—H6 | 109.5 |
O3—C11—C7 | 123.5 (2) | C2—C6—H6 | 109.5 |
O3—C11—H11 | 118.2 | C9—C10—S2 | 112.97 (17) |
C7—C11—H11 | 118.2 | C9—C10—H10 | 123.5 |
C8—C7—C11 | 130.1 (2) | S2—C10—H10 | 123.5 |
C8—C7—S2 | 111.65 (15) | C4—C3—C2 | 113.3 (2) |
C11—C7—S2 | 118.27 (17) | C4—C3—H3 | 123.4 |
O2—C5—C1 | 125.2 (2) | C2—C3—H3 | 123.4 |
O2—C5—H5 | 117.4 | ||
C3—C2—C1—C5 | −174.3 (2) | C7—C8—C9—C10 | −0.8 (3) |
C6—C2—C1—C5 | 4.5 (4) | C6—C8—C9—C10 | 178.91 (18) |
C3—C2—C1—S1 | 0.4 (2) | C1—S1—C4—C3 | 0.90 (19) |
C6—C2—C1—S1 | 179.10 (16) | C7—C8—C6—O1 | 129.0 (2) |
C4—S1—C1—C2 | −0.71 (16) | C9—C8—C6—O1 | −50.6 (2) |
C4—S1—C1—C5 | 174.72 (19) | C7—C8—C6—C2 | −110.1 (2) |
C9—C8—C7—C11 | 178.7 (2) | C9—C8—C6—C2 | 70.2 (2) |
C6—C8—C7—C11 | −1.0 (4) | C1—C2—C6—O1 | −141.08 (19) |
C9—C8—C7—S2 | 0.6 (2) | C3—C2—C6—O1 | 37.5 (3) |
C6—C8—C7—S2 | −179.07 (15) | C1—C2—C6—C8 | 101.1 (2) |
O3—C11—C7—C8 | −178.5 (2) | C3—C2—C6—C8 | −80.3 (2) |
O3—C11—C7—S2 | −0.5 (3) | C8—C9—C10—S2 | 0.6 (3) |
C10—S2—C7—C8 | −0.24 (17) | C7—S2—C10—C9 | −0.21 (18) |
C10—S2—C7—C11 | −178.60 (18) | S1—C4—C3—C2 | −0.9 (3) |
C2—C1—C5—O2 | −4.2 (4) | C1—C2—C3—C4 | 0.3 (3) |
S1—C1—C5—O2 | −178.5 (2) | C6—C2—C3—C4 | −178.46 (19) |
D—H···A | D—H | H···A | D···A | D—H···A |
C6—H6···O2 | 0.98 | 2.43 | 3.101 (3) | 125 |
C11—H11···O2 | 0.93 | 2.50 | 3.261 (3) | 139 |
C4—H4···O1i | 0.93 | 2.55 | 3.377 (3) | 149 |
C9—H9···O2ii | 0.93 | 2.57 | 3.458 (3) | 160 |
C10—H10···O3ii | 0.93 | 2.55 | 3.397 (3) | 152 |
O1—H1···O3iii | 0.82 | 2.03 | 2.825 (2) | 162 |
Symmetry codes: (i) −x+1, y−1/2, −z+1/2; (ii) x+1, y, z; (iii) −x, y−1/2, −z+1/2. |
Experimental details
Crystal data | |
Chemical formula | C11H8O3S2 |
Mr | 252.29 |
Crystal system, space group | Monoclinic, P21/c |
Temperature (K) | 293 |
a, b, c (Å) | 7.6227 (18), 10.136 (2), 14.272 (3) |
β (°) | 101.998 (4) |
V (Å3) | 1078.7 (4) |
Z | 4 |
Radiation type | Mo Kα |
µ (mm−1) | 0.48 |
Crystal size (mm) | 0.26 × 0.24 × 0.21 |
Data collection | |
Diffractometer | Bruker SMART APEX CCD area-detector diffractometer |
Absorption correction | Multi-scan (SADABS; Bruker, 2001) |
Tmin, Tmax | 0.886, 0.906 |
No. of measured, independent and observed [I > 2σ(I)] reflections | 6687, 2122, 1798 |
Rint | 0.025 |
(sin θ/λ)max (Å−1) | 0.619 |
Refinement | |
R[F2 > 2σ(F2)], wR(F2), S | 0.041, 0.100, 1.03 |
No. of reflections | 2122 |
No. of parameters | 145 |
H-atom treatment | H-atom parameters constrained |
Δρmax, Δρmin (e Å−3) | 0.31, −0.17 |
Computer programs: SMART (Bruker, 1998), SAINT (Bruker, 1998), SHELXS97 (Sheldrick, 2008), SHELXL97 (Sheldrick, 2008), SHELXTL (Sheldrick, 2008).
D—H···A | D—H | H···A | D···A | D—H···A |
C6—H6···O2 | 0.98 | 2.43 | 3.101 (3) | 125 |
C11—H11···O2 | 0.93 | 2.50 | 3.261 (3) | 139 |
C4—H4···O1i | 0.93 | 2.55 | 3.377 (3) | 149 |
C9—H9···O2ii | 0.93 | 2.57 | 3.458 (3) | 160 |
C10—H10···O3ii | 0.93 | 2.55 | 3.397 (3) | 152 |
O1—H1···O3iii | 0.82 | 2.03 | 2.825 (2) | 162 |
Symmetry codes: (i) −x+1, y−1/2, −z+1/2; (ii) x+1, y, z; (iii) −x, y−1/2, −z+1/2. |
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.
Thiophene aldehydes and their homologues are an important class of organic compounds. Some of them can be used as precursors for syntheses of azomethines (also named Schiff) (Guarín et al., 2007; Basu et al., 2011) thiacarbaporphyrins (Jain et al., 2010), and dicyanovinyl-derivatives (Raposo et al., 2003, 2004) for optical applications. We are interested in the structures and properties of Schiff base ligands and their metal complexes (Su, Wu, Li, et al. 2007a, 2007b; Su, Gao, et al. 2007c; Su et al. 2009). Herein, a new thiophene dialdehyde, of which the aldehyde group can easily react with all kinds of arylamines to form Schiff-bases, was synthesized and the crystal structure of the title compound, (I) (Fig. 1), is reported.
In the title molecule, Fig. 1, the angle between the mean planes of the two thiophene rings is 65.1°. The two aldehyde groups are nearly coplanar with the thiophene rings to which they are attached. The C3–C2–C1–C5, C6–C2–C3–C4, C6–C8–C9–C10 and C9–C8–C7–C11 torsion angles are -174.3 (2), -178.46 (19), 178.91 (18) and 178.7 (2)°, respectively. Both S(6) and S(7) ring motifs (Bernstein et al., 1995) are formed due to intramolecular C—H···O interactions (Fig. 2 and Table 1). In the crystal there exist intermolecular C—H···O interactions with the graph-set motifs R21(8) and R22(13) (Bernstein et al., 1995) which form one-dimensional chains along the a axis (Fig. 2a and Table 1). The adjacent chains are connected into a 3-dimensional network by intermolecular C4—H4···O1 and O1—H1···O3 interactions (Fig. 2b and Table 1).