3-[1-(3,4-Di­chloro­phen­yl)eth­yl]-1,3-thia­zinane-2-thione

In the title compound, C₁₂H₁₃Cl₂NS₂, the thia­zinane ring adopts a half-boat conformation. An intra­molecular C—H⋯S hydrogen bond is observed. In the crystal structure, centrosymmetrically related mol­ecules inter­act through an aromatic π–π stacking inter­actions, with a centroid–centroid separation of 3.790 (2) Å.

Related literature

For the crystal structures of related thia­zinane compounds, see: Kálmán, et al. (1977); Peng & Wu (2009). For the biological activity of thia­zinane-containing compounds, see: Soloway et al. (1978); Tomizawa et al. (1995). For ring puckering parameters, see: Cremer & Pople (1975).

Experimental

Crystal data

• C₁₂H₁₃Cl₂NS₂

• M_r = 306.25

• Monoclinic, C 2/c

• a = 13.6003 (13) Å

• b = 6.7270 (7) Å

• c = 29.149 (3) Å

• β = 101.417 (4)°

• V = 2614.1 (5) ų

• Z = 8

• Mo Kα radiation

• μ = 0.79 mm⁻¹

• T = 113 K

• 0.14 × 0.12 × 0.08 mm

Data collection

• Rigaku Saturn CCD area-detector diffractometer

• Absorption correction: multi-scan (CrystalClear; Rigaku, 2005) T_min = 0.897, T_max = 0.939

• 11612 measured reflections

• 3029 independent reflections

• 2527 reflections with I > 2σ(I)

• R_int = 0.048

Refinement

• R[F² > 2σ(F²)] = 0.035

• wR(F²) = 0.085

• S = 1.07

• 3029 reflections

• 155 parameters

• H-atom parameters constrained

• Δρ_max = 0.32 e Å⁻³

• Δρ_min = −0.27 e Å⁻³

Table 1
Hydrogen-bond geometry (Å, °)

D—H⋯A	D—H	H⋯A	D⋯A	D—H⋯A
C5—H5⋯S1	1.00	2.48	3.068 (2)	117

Data collection: CrystalClear (Rigaku, 2005); cell refinement: CrystalClear; data reduction: CrystalClear; 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

S1. Comment

The 1,3-thiazinane ring is an important group in organic chemistry, as many compounds containing this groups possess a broad spectrum of biological activities (Soloway et al., 1978; Tomizawa et al., 1995). Herein, we report the crystal structure of the title compound, 3-[1-(3,4-dichlorophenyl)ethyl]-1,3-thiazinane-2-thione.

In title compound (Fig. 1), all bond lengths and angles are normal and in good agreement with those reported previously for the related compounds 2-phenylimino-1,3-thiazine (Kálmán, et al., 1977) and (Z)-(1,3-thiazinan-2-ylideneamino)formonitrile (Peng & Wu, 2009). The thiazinane ring adopts a half boat conformation, with atom C3 displaced by 0.685 (2) Å from the plane (p1) formed by S2, N1, C1, C2 and C4 [maximum least squares plane deviation 0.040 (3) Å for N1]. The ring puckering parameters of the thiazinane ring are q2 = 0.512 (2) Å, θ = 130.1 (3)° and ϕ = 57.12 (2)° (Cremer & Pople, 1975). The dihedral angle between the benzene ring (C7—C12) and plane p1 is 84.18 (3)°. The molecular conformation is stabilized by an intramolecular C—H···S hydrogen bond (Table 1). In the crystal structure, centrosymmetrically related molecules at (x, y, z) and (-x, -y, -z) are linked by an aromatic π–π stacking interaction involving the benzene rings, with a centroid-to-centroid separation of 3.790 (2) Å.

Related literature

For the crystal structures of related thiazinane compounds, see: Kálmán, et al. (1977); Peng & Wu (2009). For the biological activity of thiazinane-containing compounds, see: Soloway et al. (1978); Tomizawa et al. (1995). For ring puckering parameters, see: Cremer & Pople (1975).

S2. Experimental

A solution of 1,3-thiazinane-2-thione (1.33 g, 10 mmol) and sodium hydride (0.3 g) in anhydrous acetonitrile (20 ml) was added dropwise over a period of 10 min to a solution of 1,2-dichloro-4-(1-chloroethyl)benzene (2.10 g, 10 mmol) in acetonitrile (10 ml) at 273 K. The mixture was stirred at 353 K for 3 h. The solvent was removed and the residue was purified by flash chromatography (eluted with 5:1 v/v cyclohexane/dichloromethane) to give title compound as a white solid (2.66 g, 87% yield). Single crystals suitable for X-ray measurements were obtained by slow evaporation of an ethanol solution at room temperature.

S3. Refinement

All H atoms were placed in calculated positions, with C—H = 0.95–1.00 Å, and included in the final cycles of refinement using a riding model, with U_iso(H) = 1.2U_eq(C) or 1.5U_eq(C) for methyl H atoms.

Computing details

Data collection: CrystalClear (Rigaku, 2005); cell refinement: CrystalClear (Rigaku, 2005); data reduction: CrystalClear (Rigaku, 2005); 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).

Figures

Fig. 1. The molecular structure of the title compound, with displacement ellipsoids drawn at the 40% probability level.

3-[1-(3,4-Dichlorophenyl)ethyl]-1,3-thiazinane-2-thione

Crystal data

C12H13Cl2NS2	F(000) = 1264
Mr = 306.25	Dx = 1.556 Mg m^−3
Monoclinic, C2/c	Mo Kα radiation, λ = 0.71073 Å
Hall symbol: -C 2yc	Cell parameters from 7182 reflections
a = 13.6003 (13) Å	θ = 2.3–27.5°
b = 6.7270 (7) Å	µ = 0.79 mm^−1
c = 29.149 (3) Å	T = 113 K
β = 101.417 (4)°	Platelet, colourless
V = 2614.1 (5) Å^3	0.14 × 0.12 × 0.08 mm
Z = 8

Data collection

Rigaku Saturn CCD area-detector diffractometer	3029 independent reflections
Radiation source: rotating anode	2527 reflections with I > 2σ(I)
Confocal monochromator	Rint = 0.048
ω scans	θmax = 27.8°, θmin = 2.9°
Absorption correction: multi-scan (CrystalClear; Rigaku, 2005)	h = −17→17
Tmin = 0.897, Tmax = 0.939	k = −8→8
11612 measured reflections	l = −37→36

Refinement

Refinement on F^2	Primary atom site location: structure-invariant direct methods
Least-squares matrix: full	Secondary atom site location: difference Fourier map
R[F^2 > 2σ(F^2)] = 0.035	Hydrogen site location: inferred from neighbouring sites
wR(F^2) = 0.085	H-atom parameters constrained
S = 1.07	w = 1/[σ^2(Fo^2) + (0.0402P)^2 + 0.4571P] where P = (Fo^2 + 2Fc^2)/3
3029 reflections	(Δ/σ)max = 0.001
155 parameters	Δρmax = 0.32 e Å^−3
0 restraints	Δρmin = −0.27 e Å^−3

Special details

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.

Fractional atomic coordinates and isotropic or equivalent isotropic displacement parameters (Ų)

	x	y	z	Uiso*/Ueq
Cl1	0.60316 (4)	0.10311 (6)	0.452969 (16)	0.02326 (13)
Cl2	0.63526 (3)	0.55467 (7)	0.429381 (15)	0.02298 (13)
S1	0.55056 (4)	0.60336 (7)	0.693068 (19)	0.02744 (14)
S2	0.75483 (4)	0.70607 (7)	0.725845 (17)	0.02484 (13)
N1	0.69926 (10)	0.4226 (2)	0.66046 (5)	0.0155 (3)
C1	0.66962 (14)	0.5552 (3)	0.68892 (6)	0.0177 (4)
C2	0.80510 (13)	0.3723 (3)	0.66064 (7)	0.0189 (4)
H2A	0.8097	0.3130	0.6300	0.023*
H2B	0.8277	0.2709	0.6851	0.023*
C3	0.87453 (14)	0.5495 (3)	0.66958 (7)	0.0256 (4)
H3A	0.9428	0.5094	0.6662	0.031*
H3B	0.8507	0.6541	0.6461	0.031*
C4	0.87848 (15)	0.6317 (3)	0.71811 (7)	0.0281 (5)
H4A	0.9241	0.7479	0.7232	0.034*
H4B	0.9056	0.5294	0.7416	0.034*
C5	0.62405 (13)	0.3052 (2)	0.62764 (6)	0.0162 (4)
H5	0.5563	0.3438	0.6331	0.019*
C6	0.63753 (15)	0.0842 (3)	0.63832 (7)	0.0224 (4)
H6A	0.7011	0.0391	0.6309	0.034*
H6B	0.5820	0.0101	0.6193	0.034*
H6C	0.6382	0.0613	0.6716	0.034*
C7	0.62876 (13)	0.3644 (3)	0.57774 (6)	0.0168 (4)
C8	0.61792 (13)	0.2249 (3)	0.54197 (6)	0.0172 (4)
H8	0.6098	0.0885	0.5488	0.021*
C9	0.61883 (13)	0.2827 (3)	0.49638 (6)	0.0163 (4)
C10	0.63158 (12)	0.4809 (3)	0.48584 (6)	0.0167 (4)
C11	0.64194 (14)	0.6213 (3)	0.52126 (7)	0.0208 (4)
H11	0.6504	0.7575	0.5144	0.025*
C12	0.63994 (14)	0.5635 (3)	0.56657 (6)	0.0197 (4)
H12	0.6463	0.6612	0.5905	0.024*

Atomic displacement parameters (Ų)

	U^11	U^22	U^33	U^12	U^13	U^23
Cl1	0.0312 (3)	0.0223 (2)	0.0161 (2)	−0.00385 (19)	0.00449 (19)	−0.00435 (18)
Cl2	0.0274 (3)	0.0267 (2)	0.0152 (2)	0.00102 (19)	0.00507 (19)	0.00504 (18)
S1	0.0251 (3)	0.0273 (3)	0.0333 (3)	0.0055 (2)	0.0140 (2)	−0.0023 (2)
S2	0.0338 (3)	0.0205 (2)	0.0181 (3)	0.0007 (2)	−0.0003 (2)	−0.00394 (18)
N1	0.0150 (7)	0.0191 (7)	0.0123 (8)	0.0016 (6)	0.0023 (6)	−0.0010 (6)
C1	0.0246 (9)	0.0159 (8)	0.0127 (9)	0.0017 (7)	0.0038 (7)	0.0034 (7)
C2	0.0166 (9)	0.0248 (9)	0.0158 (10)	0.0034 (7)	0.0046 (7)	−0.0008 (7)
C3	0.0190 (9)	0.0317 (10)	0.0259 (11)	−0.0019 (8)	0.0040 (8)	0.0052 (9)
C4	0.0245 (10)	0.0281 (10)	0.0279 (12)	−0.0067 (8)	−0.0038 (8)	0.0002 (8)
C5	0.0171 (8)	0.0185 (9)	0.0126 (9)	−0.0007 (7)	0.0016 (7)	−0.0002 (7)
C6	0.0307 (10)	0.0215 (9)	0.0152 (10)	−0.0041 (8)	0.0046 (8)	0.0015 (7)
C7	0.0146 (8)	0.0201 (8)	0.0151 (9)	0.0014 (7)	0.0018 (7)	0.0004 (7)
C8	0.0172 (8)	0.0163 (8)	0.0176 (10)	−0.0008 (7)	0.0024 (7)	0.0000 (7)
C9	0.0144 (8)	0.0197 (9)	0.0145 (9)	−0.0006 (7)	0.0022 (7)	−0.0039 (7)
C10	0.0153 (8)	0.0224 (9)	0.0125 (9)	0.0021 (7)	0.0028 (7)	0.0029 (7)
C11	0.0252 (10)	0.0162 (9)	0.0201 (10)	0.0010 (7)	0.0027 (8)	0.0017 (7)
C12	0.0227 (9)	0.0192 (9)	0.0160 (10)	0.0016 (7)	0.0011 (7)	−0.0023 (7)

Geometric parameters (Å, º)

Cl1—C9	1.7317 (18)	C5—C7	1.522 (2)
Cl2—C10	1.7292 (18)	C5—C6	1.522 (2)
S1—C1	1.6789 (19)	C5—H5	1.0000
S2—C1	1.7430 (19)	C6—H6A	0.9800
S2—C4	1.811 (2)	C6—H6B	0.9800
N1—C1	1.334 (2)	C6—H6C	0.9800
N1—C2	1.478 (2)	C7—C8	1.389 (2)
N1—C5	1.483 (2)	C7—C12	1.393 (2)
C2—C3	1.511 (3)	C8—C9	1.387 (2)
C2—H2A	0.9900	C8—H8	0.9500
C2—H2B	0.9900	C9—C10	1.387 (2)
C3—C4	1.510 (3)	C10—C11	1.386 (2)
C3—H3A	0.9900	C11—C12	1.382 (3)
C3—H3B	0.9900	C11—H11	0.9500
C4—H4A	0.9900	C12—H12	0.9500
C4—H4B	0.9900
C1—S2—C4	106.42 (9)	N1—C5—H5	107.4
C1—N1—C2	124.42 (15)	C7—C5—H5	107.4
C1—N1—C5	120.18 (15)	C6—C5—H5	107.4
C2—N1—C5	115.30 (13)	C5—C6—H6A	109.5
N1—C1—S1	126.05 (14)	C5—C6—H6B	109.5
N1—C1—S2	121.84 (14)	H6A—C6—H6B	109.5
S1—C1—S2	112.08 (10)	C5—C6—H6C	109.5
N1—C2—C3	113.25 (15)	H6A—C6—H6C	109.5
N1—C2—H2A	108.9	H6B—C6—H6C	109.5
C3—C2—H2A	108.9	C8—C7—C12	118.30 (17)
N1—C2—H2B	108.9	C8—C7—C5	121.49 (15)
C3—C2—H2B	108.9	C12—C7—C5	120.16 (16)
H2A—C2—H2B	107.7	C9—C8—C7	120.70 (16)
C4—C3—C2	110.84 (16)	C9—C8—H8	119.7
C4—C3—H3A	109.5	C7—C8—H8	119.7
C2—C3—H3A	109.5	C8—C9—C10	120.44 (16)
C4—C3—H3B	109.5	C8—C9—Cl1	118.80 (14)
C2—C3—H3B	109.5	C10—C9—Cl1	120.75 (14)
H3A—C3—H3B	108.1	C11—C10—C9	119.28 (16)
C3—C4—S2	110.86 (13)	C11—C10—Cl2	119.71 (14)
C3—C4—H4A	109.5	C9—C10—Cl2	121.02 (14)
S2—C4—H4A	109.5	C12—C11—C10	120.12 (17)
C3—C4—H4B	109.5	C12—C11—H11	119.9
S2—C4—H4B	109.5	C10—C11—H11	119.9
H4A—C4—H4B	108.1	C11—C12—C7	121.16 (17)
N1—C5—C7	108.84 (14)	C11—C12—H12	119.4
N1—C5—C6	110.40 (14)	C7—C12—H12	119.4
C7—C5—C6	115.16 (15)
C2—N1—C1—S1	−174.57 (13)	C6—C5—C7—C8	17.1 (2)
C5—N1—C1—S1	1.7 (2)	N1—C5—C7—C12	−41.1 (2)
C2—N1—C1—S2	7.3 (2)	C6—C5—C7—C12	−165.64 (16)
C5—N1—C1—S2	−176.51 (12)	C12—C7—C8—C9	0.4 (3)
C4—S2—C1—N1	−2.87 (17)	C5—C7—C8—C9	177.67 (15)
C4—S2—C1—S1	178.74 (10)	C7—C8—C9—C10	0.6 (3)
C1—N1—C2—C3	−37.4 (2)	C7—C8—C9—Cl1	−179.05 (13)
C5—N1—C2—C3	146.26 (15)	C8—C9—C10—C11	−1.0 (3)
N1—C2—C3—C4	64.7 (2)	Cl1—C9—C10—C11	178.73 (13)
C2—C3—C4—S2	−58.89 (18)	C8—C9—C10—Cl2	178.77 (13)
C1—S2—C4—C3	28.40 (16)	Cl1—C9—C10—Cl2	−1.6 (2)
C1—N1—C5—C7	113.96 (17)	C9—C10—C11—C12	0.3 (3)
C2—N1—C5—C7	−69.49 (18)	Cl2—C10—C11—C12	−179.45 (14)
C1—N1—C5—C6	−118.73 (18)	C10—C11—C12—C7	0.7 (3)
C2—N1—C5—C6	57.82 (19)	C8—C7—C12—C11	−1.1 (3)
N1—C5—C7—C8	141.65 (16)	C5—C7—C12—C11	−178.40 (16)

Hydrogen-bond geometry (Å, º)

D—H···A	D—H	H···A	D···A	D—H···A
C5—H5···S1	1.00	2.48	3.068 (2)	117