organic compounds
(Z)-{[3-(Hydroxymethyl)-1,3-thiazolidin-2-ylidene]amino}formonitrile
aInstitute of Cardiovascular Disease, Pingjin Hospital, Medical College of Armed Police Force, Tianjin 300162, People's Republic of China
*Correspondence e-mail: yuming_li2009@yahoo.cn
In the title molecule, C5H7N3OS, all the non-hydrogen atoms except the O atom are almost planar [maximum least squares plane deviation = 0.035 (3) Å for the N atom]. The crystal packing is stabilized by intermolecular O—H⋯N hydrogen bonds, which link the molecules into inversion dimers.
Related literature
For a related structure, see: Xie (2008). For the biological activity of thiazolidine-containing compounds, see: Iwata et al. (1988). For bond-length data, see: Allen et al. (1987).
Experimental
Crystal data
|
Refinement
|
Data collection: RAPID-AUTO (Rigaku, 2004); cell RAPID-AUTO; data reduction: RAPID-AUTO; program(s) used to solve structure: SHELXTL (Sheldrick, 2008); program(s) used to refine structure: SHELXTL; molecular graphics: SHELXTL; software used to prepare material for publication: SHELXTL.
Supporting information
10.1107/S1600536809023095/hg2526sup1.cif
contains datablocks I, global. DOI:Structure factors: contains datablock I. DOI: 10.1107/S1600536809023095/hg2526Isup2.hkl
A mixture of (Z)-(thiazolidin-2-ylideneamino)formonitrile 10 mmol (1.27 g), paraformaldehyde (0.36 g, 12 mmol) and 0.01 g triethylamine were refluxed in absolute EtOH (20 mL) for 3 h. On cooling, the product crystallizes and was filtered and then recrystallized from absolute ethanol. Yield 1.51 g (96%). Single crystals suitable for X-ray measurements were obtained by recrystallization from ethanol at room temperature.
All H atoms were found on difference maps. The hydroxyl H atoms were refined freely, giving an O—H bond distance of 0.80 Å. The remaining H atoms were placed in calculated positions, with C—H = 0.97 Å with Uiso(H) = 1.2 times Ueq(C).
Data collection: RAPID-AUTO (Rigaku, 2004); cell
RAPID-AUTO (Rigaku, 2004); data reduction: RAPID-AUTO (Rigaku, 2004); program(s) used to solve structure: SHELXTL (Sheldrick, 2008); program(s) used to refine structure: SHELXTL (Sheldrick, 2008); molecular graphics: SHELXTL (Sheldrick, 2008); software used to prepare material for publication: SHELXTL (Sheldrick, 2008).Fig. 1. The molecular structure of (I), with atom labels and 40% probability displacement ellipsoids for non-H atoms. |
C5H7N3OS | Z = 2 |
Mr = 157.20 | F(000) = 164 |
Triclinic, P1 | Dx = 1.484 Mg m−3 |
Hall symbol: -P 1 | Mo Kα radiation, λ = 0.71073 Å |
a = 5.5321 (11) Å | Cell parameters from 2501 reflections |
b = 8.1790 (16) Å | θ = 2.3–25.1° |
c = 8.4978 (17) Å | µ = 0.39 mm−1 |
α = 101.56 (3)° | T = 293 K |
β = 100.39 (3)° | Needle, colorless |
γ = 105.47 (3)° | 0.22 × 0.17 × 0.13 mm |
V = 351.75 (16) Å3 |
Rigaku R-AXIS RAPID IP area-detector diffractometer | 1234 independent reflections |
Radiation source: Rotating Anode | 1027 reflections with I > 2σ(I) |
Graphite monochromator | Rint = 0.014 |
ω oscillation scans | θmax = 25.0°, θmin = 3.2° |
Absorption correction: multi-scan (ABSCOR; Higashi, 1995) | h = −6→6 |
Tmin = 0.919, Tmax = 0.951 | k = −9→9 |
2778 measured reflections | l = −10→10 |
Refinement on F2 | Secondary atom site location: difference Fourier map |
Least-squares matrix: full | Hydrogen site location: inferred from neighbouring sites |
R[F2 > 2σ(F2)] = 0.032 | H atoms treated by a mixture of independent and constrained refinement |
wR(F2) = 0.119 | w = 1/[σ2(Fo2) + (0.0703P)2 + 0.06P] where P = (Fo2 + 2Fc2)/3 |
S = 1.19 | (Δ/σ)max < 0.001 |
1234 reflections | Δρmax = 0.33 e Å−3 |
96 parameters | Δρmin = −0.25 e Å−3 |
0 restraints | Extinction correction: SHELXTL (Sheldrick, 2008), Fc*=kFc[1+0.001xFc2λ3/sin(2θ)]-1/4 |
Primary atom site location: structure-invariant direct methods | Extinction coefficient: 0.052 (16) |
C5H7N3OS | γ = 105.47 (3)° |
Mr = 157.20 | V = 351.75 (16) Å3 |
Triclinic, P1 | Z = 2 |
a = 5.5321 (11) Å | Mo Kα radiation |
b = 8.1790 (16) Å | µ = 0.39 mm−1 |
c = 8.4978 (17) Å | T = 293 K |
α = 101.56 (3)° | 0.22 × 0.17 × 0.13 mm |
β = 100.39 (3)° |
Rigaku R-AXIS RAPID IP area-detector diffractometer | 1234 independent reflections |
Absorption correction: multi-scan (ABSCOR; Higashi, 1995) | 1027 reflections with I > 2σ(I) |
Tmin = 0.919, Tmax = 0.951 | Rint = 0.014 |
2778 measured reflections |
R[F2 > 2σ(F2)] = 0.032 | 0 restraints |
wR(F2) = 0.119 | H atoms treated by a mixture of independent and constrained refinement |
S = 1.19 | Δρmax = 0.33 e Å−3 |
1234 reflections | Δρmin = −0.25 e Å−3 |
96 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 | 0.15141 (12) | 0.91511 (8) | 0.84635 (8) | 0.0509 (3) | |
O1 | 0.3210 (4) | 0.3944 (2) | 0.6397 (3) | 0.0640 (6) | |
N1 | 0.3875 (3) | 0.6968 (2) | 0.7503 (2) | 0.0450 (5) | |
N2 | 0.2714 (4) | 0.6719 (2) | 0.9942 (2) | 0.0490 (5) | |
N3 | 0.0736 (5) | 0.7702 (3) | 1.2185 (3) | 0.0640 (6) | |
C1 | 0.3729 (7) | 0.7839 (5) | 0.6182 (4) | 0.0724 (9) | |
H1B | 0.2783 | 0.6980 | 0.5138 | 0.087* | |
H1C | 0.5460 | 0.8400 | 0.6090 | 0.087* | |
C2 | 0.2400 (6) | 0.9180 (4) | 0.6529 (3) | 0.0592 (7) | |
H2B | 0.0866 | 0.8916 | 0.5642 | 0.071* | |
H2C | 0.3545 | 1.0335 | 0.6600 | 0.071* | |
C3 | 0.4959 (5) | 0.5525 (3) | 0.7414 (3) | 0.0529 (6) | |
H3A | 0.6495 | 0.5809 | 0.6993 | 0.063* | |
H3B | 0.5477 | 0.5389 | 0.8521 | 0.063* | |
C4 | 0.2782 (4) | 0.7467 (3) | 0.8711 (3) | 0.0395 (5) | |
C5 | 0.1620 (5) | 0.7289 (3) | 1.1096 (3) | 0.0482 (6) | |
H1A | 0.216 (6) | 0.353 (4) | 0.686 (4) | 0.080 (10)* |
U11 | U22 | U33 | U12 | U13 | U23 | |
S1 | 0.0639 (4) | 0.0564 (4) | 0.0506 (4) | 0.0356 (3) | 0.0251 (3) | 0.0217 (3) |
O1 | 0.0818 (13) | 0.0500 (10) | 0.0697 (13) | 0.0227 (9) | 0.0443 (11) | 0.0109 (9) |
N1 | 0.0543 (11) | 0.0508 (10) | 0.0416 (11) | 0.0272 (9) | 0.0206 (9) | 0.0158 (8) |
N2 | 0.0661 (12) | 0.0492 (11) | 0.0457 (12) | 0.0278 (9) | 0.0249 (9) | 0.0202 (9) |
N3 | 0.0854 (16) | 0.0641 (13) | 0.0531 (14) | 0.0263 (12) | 0.0342 (12) | 0.0195 (11) |
C1 | 0.101 (2) | 0.102 (2) | 0.0584 (17) | 0.0688 (19) | 0.0462 (16) | 0.0452 (16) |
C2 | 0.0827 (17) | 0.0620 (15) | 0.0481 (15) | 0.0335 (14) | 0.0262 (13) | 0.0240 (12) |
C3 | 0.0601 (14) | 0.0561 (14) | 0.0562 (15) | 0.0318 (12) | 0.0255 (12) | 0.0166 (12) |
C4 | 0.0416 (11) | 0.0386 (10) | 0.0389 (12) | 0.0140 (9) | 0.0111 (9) | 0.0087 (9) |
C5 | 0.0622 (14) | 0.0462 (12) | 0.0421 (14) | 0.0191 (11) | 0.0171 (11) | 0.0179 (10) |
S1—C4 | 1.735 (2) | N3—C5 | 1.156 (3) |
S1—C2 | 1.801 (3) | C1—C2 | 1.486 (4) |
O1—C3 | 1.392 (3) | C1—H1B | 0.9700 |
O1—H1A | 0.80 (3) | C1—H1C | 0.9700 |
N1—C4 | 1.331 (3) | C2—H2B | 0.9700 |
N1—C1 | 1.447 (3) | C2—H2C | 0.9700 |
N1—C3 | 1.455 (3) | C3—H3A | 0.9700 |
N2—C5 | 1.314 (3) | C3—H3B | 0.9700 |
N2—C4 | 1.315 (3) | ||
C4—S1—C2 | 92.28 (11) | S1—C2—H2B | 110.0 |
C3—O1—H1A | 111 (2) | C1—C2—H2C | 110.0 |
C4—N1—C1 | 116.2 (2) | S1—C2—H2C | 110.0 |
C4—N1—C3 | 122.77 (19) | H2B—C2—H2C | 108.4 |
C1—N1—C3 | 120.8 (2) | O1—C3—N1 | 112.3 (2) |
C5—N2—C4 | 118.1 (2) | O1—C3—H3A | 109.1 |
N1—C1—C2 | 110.0 (2) | N1—C3—H3A | 109.1 |
N1—C1—H1B | 109.7 | O1—C3—H3B | 109.1 |
C2—C1—H1B | 109.7 | N1—C3—H3B | 109.1 |
N1—C1—H1C | 109.7 | H3A—C3—H3B | 107.9 |
C2—C1—H1C | 109.7 | N2—C4—N1 | 121.5 (2) |
H1B—C1—H1C | 108.2 | N2—C4—S1 | 125.35 (17) |
C1—C2—S1 | 108.30 (18) | N1—C4—S1 | 113.20 (17) |
C1—C2—H2B | 110.0 | N3—C5—N2 | 174.2 (3) |
C4—N1—C1—C2 | 1.7 (4) | C1—N1—C4—N2 | 177.4 (2) |
C3—N1—C1—C2 | 176.5 (2) | C3—N1—C4—N2 | 2.8 (3) |
N1—C1—C2—S1 | −0.2 (3) | C1—N1—C4—S1 | −2.5 (3) |
C4—S1—C2—C1 | −0.9 (2) | C3—N1—C4—S1 | −177.14 (17) |
C4—N1—C3—O1 | 95.2 (3) | C2—S1—C4—N2 | −178.0 (2) |
C1—N1—C3—O1 | −79.2 (3) | C2—S1—C4—N1 | 1.95 (18) |
C5—N2—C4—N1 | 179.5 (2) | C4—N2—C5—N3 | −171 (3) |
C5—N2—C4—S1 | −0.6 (3) |
D—H···A | D—H | H···A | D···A | D—H···A |
O1—H1A···N3i | 0.80 (3) | 2.04 (3) | 2.839 (3) | 174 (3) |
Symmetry code: (i) −x, −y+1, −z+2. |
Experimental details
Crystal data | |
Chemical formula | C5H7N3OS |
Mr | 157.20 |
Crystal system, space group | Triclinic, P1 |
Temperature (K) | 293 |
a, b, c (Å) | 5.5321 (11), 8.1790 (16), 8.4978 (17) |
α, β, γ (°) | 101.56 (3), 100.39 (3), 105.47 (3) |
V (Å3) | 351.75 (16) |
Z | 2 |
Radiation type | Mo Kα |
µ (mm−1) | 0.39 |
Crystal size (mm) | 0.22 × 0.17 × 0.13 |
Data collection | |
Diffractometer | Rigaku R-AXIS RAPID IP area-detector diffractometer |
Absorption correction | Multi-scan (ABSCOR; Higashi, 1995) |
Tmin, Tmax | 0.919, 0.951 |
No. of measured, independent and observed [I > 2σ(I)] reflections | 2778, 1234, 1027 |
Rint | 0.014 |
(sin θ/λ)max (Å−1) | 0.594 |
Refinement | |
R[F2 > 2σ(F2)], wR(F2), S | 0.032, 0.119, 1.19 |
No. of reflections | 1234 |
No. of parameters | 96 |
H-atom treatment | H atoms treated by a mixture of independent and constrained refinement |
Δρmax, Δρmin (e Å−3) | 0.33, −0.25 |
Computer programs: RAPID-AUTO (Rigaku, 2004), SHELXTL (Sheldrick, 2008).
D—H···A | D—H | H···A | D···A | D—H···A |
O1—H1A···N3i | 0.80 (3) | 2.04 (3) | 2.839 (3) | 174 (3) |
Symmetry code: (i) −x, −y+1, −z+2. |
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. CrossRef Web of Science Google Scholar
Higashi, T. (1995). ABSCOR. Rigaku Corporation, Tokyo, Japan. Google Scholar
Iwata, C., Watanabe, M., Okamoto, S., Fujimoto, M., Sakae, M., Katsurada, M. & Imanishi, T. (1988). Synthesis, 3, 261–262. Google Scholar
Rigaku (2004). RAPID-AUTO. Rigaku Corporation, Takyo, Japan. Google Scholar
Sheldrick, G. M. (2008). Acta Cryst. A64, 112–122. Web of Science CrossRef CAS IUCr Journals Google Scholar
Xie, B. (2008). Acta Cryst. E64, o1237. Web of Science CSD CrossRef 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.
Thiazolidine is an important kind of group in organic chemistry. Many compounds containing Thiazolidine groups possess a broad spectrum of biological activities (Iwata et al., 1988). Here, we report the title crystal structure.
In (Z)-(3-(hydroxymethyl)thiazolidin-2-ylideneamino)formonitrile (Fig. 1), all bond lengths are normal (Allen et al., 1987) and in a good agreement with those reported previously (Xie, 2008). It is known that the imino tautomers can exist as two geometrical isomers, syn (Z) and anti (E), but in this crystal, only Z isomers have been observed. The atoms of whole molecule except O atom (C1-C5/N1-N3/S1) are almost planar [maximum least squares plane deviation for N1 0.035 (3) Å]. The crystal packing is stabilized by intermolecular O—H···N hydrogen bonds, which link the molecules into dimers.