research communications
Crystal structures of (N-methyl-N-phenylamino)(N-methyl-N-phenylcarbamoyl)sulfide and the corresponding disulfane
aDepartment of Chemistry, University of Minnesota, Minneapolis, MN 55455, USA, and bDepartment of Chemistry, Saint Michael's College, Colchester, VT 05439, USA
*Correspondence e-mail: barany@umn.edu
The title compounds, (N-methyl-N-phenylamino)(N-methyl-N-phenylcarbamoyl)sulfide, C15H16N2OS, (I), and (N-methyl-N-phenylamino)(N-methyl-N-phenylcarbamoyl)disulfane, C15H16N2OS2, (II), are stable derivatives of (chlorocarbonyl)sulfenyl chloride and (chlorocarbonyl)disulfanyl chloride, respectively. The torsion angle about the S—S bond in (II) is −92.62 (6)°, which is close to the theoretical value of 90°. In the crystal of (II), non-classical intermolecular C—H⋯O hydrogen bonds form centrosymmetric cyclic dimers [graph set R22(10)], while inter-dimer C—H⋯S interactions generate chains extending along the b axis.
Keywords: crystal structure; organosulfur chemistry; sulfide; disulfane; hydrogen bonding.
1. Chemical context
As part of a multifaceted program in synthetic and mechanistic organosulfur chemistry (Barany et al., 1983; Barany & Mott, 1984; Schroll & Barany, 1986; Schrader et al., 2011, and references cited therein), we frequently encounter challenging-to-characterize compounds with one or more reactive acid chloride and/or sulfenyl chloride moieties. These are converted to the corresponding stable carbamoyl and/or sulfenamide derivatives, which are often crystalline, through their reliable, rapid, and high-yield reactions with N-methylaniline.
The present paper reports the structures of two such derivatives, i.e. (N-methyl-N-phenylamino)(N-methyl-N-phenylcarbamoyl)sulfide (I) and (N-methyl-N-phenylamino)(N-methyl-N-phenylcarbamoyl)disulfane (II), as determined by X-ray crystallography. The title compounds are derived respectively from (chlorocarbonyl)sulfenyl chloride and (chlorocarbonyl)disulfanyl chloride, which are noxious, distillable liquids. They are the first two members of a general family of compounds with the structure Ph(Me)N(C=O)SnN(Me)Ph, in which the higher members (n = 3–6) were found, but not isolated in crystalline form, as components in the reactions of in situ generated (2-propoxydichloromethyl)(chlorocarbonyl)polysulfanes with N-methylaniline (Schroll & Barany, 1986).
2. Structural commentary
The title compounds differ by the number of sulfur atoms: one in (I) (Fig. 1) versus two in (II) (Fig. 2), and by the resulting relative orientations of the Ph(Me)N(C=O)S and N(Me)Ph moieties. Otherwise, they share similar bond lengths and angles across all analogous bonds (Table 1). Furthermore, the molecular parameters are all within expected ranges. The S—S bond of (II) is 2.0625 (5) Å, which is comparable to the bond length in elemental sulfur, S8 (2.07 Å), but slightly longer than the 2.03 Å found for bis(N-methyl-N-phenylcarbamoyl)disulfane ([Ph(Me)N(C=O)S]2) (III) (Schroll et al., 2012). In compound (III) (Fig. 3), the slight shortening of the S—S bond was attributed to a partial double-bond character imparted by the adjacent carbonyl groups. Because (II) is essentially (III) minus one carbonyl group, it is not surprising for the S—S bond length in (II) to be closer to that in S8. The torsion angle about the S—S bond in (II) is −92.62 (6)°, which is comparable to the theoretical optimum of 90° (Pauling, 1949; Torrico-Vallejos et al., 2010).
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3. Supramolecular features
The contains two molecules related by a twofold screw axis (Fig. 4). There are no intermolecular contacts in the of (I). In the crystal of (II) non-classical intermolecular C7—H⋯O1 hydrogen bonds (Table 2) form centrosymmetric cyclic dimers [graph set R22(10)]. Chains of molecules extending along the b axis result from inter-dimer C2—H⋯S1 interactions (Fig. 5).
of (I)4. Database survey
A search for similar structures in the Cambridge Structural Database (CSD; Version 5.36, update of November 2014; Groom & Allen, 2014) gave bis(N-methyl-N-phenylcarbamoyl)disulfane (III), published previously from our research (Schroll et al., 2012), as well as two similar bis(carbamoyl)disulfanes (Bereman et al., 1983; Li et al., 2006). Structures containing a similar sulfenamide moiety were absent from the CSD, although two structures reported N—S bonds connected to `imido' [(RC=O)2N] moieties (Farrell et al., 2002; Ul-Haque & Behforouz, 1976). A very recent report from our research describes bis(N-methyl-N-phenylamino)trisulfane (IV) (Fig. 3) (Barany et al., 2015), an N-methylanilide which contains two `sulfenamide' ends [whereas (III) contains two `carbamoyl' ends]. Not surprisingly, many geometric parameters of (III) and (IV) superimpose onto the corresponding portions of (I) and (II). For example, the sulfenamide N2—S bond lengths of (I) [1.6784 (15) Å] and (II) [1.6660 (11) Å] are close to that of (IV) [average N—S bond length of 1.657 Å] and the carbamoyl N1—C8 and S1—C8 bond lengths of (I) [1.351 (3) and 1.824 (2) Å, respectively] and (II) [1.357 (2) and 1.827 (1) Å, respectively] are similar to that of (III) [1.345 (3) and 1.825 (2) Å, respectively]. In addition, the torsion angles about the N1—C8 bond of (I) [3.3 (2)°] and (II) [9.16 (15)°] are similar to that of (III) [−6.4 (3)°] and the torsion angle about the N2—S bond in (I) [77.3 (2)°] and (II) [−72.86 (10)] are similar but slightly smaller than that of (IV) (average angle 80.3°).
5. Synthesis and crystallization
The title compound (I) was prepared on scales of up to 0.1 mol by addition of a 0.5 M solution of (chlorocarbonyl)sulfenyl chloride in CHCl3 to an equal volume of a 2 M solution of N-methylaniline in CHCl3 at 273 K, followed by stirring for 30 min at 298 K (Barany et al., 1983). Workup by washing with equal volumes of 1 N aqueous HCl (3×) and brine (once), drying (MgSO4), filtering, and concentrating in vacuo gave the product as an oil (nominally quantitative), and recrystallization from hot hexanes (30 mL g−1) gave a white solid (typically 65–80% recovery), m.p. 338–340 K, which was stable for several decades when stored under ambient conditions. 1H NMR (300 MHz; CDCl3): δ 7.43–7.48 (m, 3H), 7.37 (dd, J = 1.9, 7.9 Hz, 2H), 7.23–7.29 (m, 2H), 7.12 (dd, J = 1.0, 8.8 Hz, 2H), 6.86 (t, J = 7.2 Hz, 1H), 3.41 (s, 3H), 3.31 (s, 3H). X-ray quality crystals were obtained by dissolving (I) (100 mg) in minimal CHCl3 (200 µL) and then adding hexane (2 mL), followed by slow evaporation of the solvent at 298 K over two days.
To prepare compound (II), a solution of (chlorocarbonyl)disulfanyl chloride (Schroll & Barany, 1986) (814 mg, 5.0 mmol) in CH2Cl2 (15 mL) was added over 10 min to a stirred solution of N-methylaniline (2.2 mL, 20 mmol) in CH2Cl2 (11 mL) at 273 K. The homogeneous reaction mixture was allowed to warm to 298 K, stirred an additional 30 min, and standard extractive workup [compare to procedure above for (I)] gave the product as a brown oil (1.44 g, 94% crude yield). The crude product was purified by flash eluting with hexane–ethyl acetate (8:1), to provide a yellow oil (1.37 g), which after storing under hexanes at 253 K overnight produced the title product as an off-white solid (757 mg, 2.5 mmol, 50%), m.p. 326–327 K (lit. 325–327 K; Barany & Mott, 1984). 1H NMR (300 MHz; CDCl3): δ 7.36–7.41 (m, 3H), 7.2–7.3 (m, 6H), 6.9–7.0 (m, 1H), 3.40 (s, 3H), 3.37 (s, 3H). X-ray quality crystals were prepared by dissolving (II) (23 mg) in CH2Cl2 (100 µL) and then adding heptane (200 µL), followed by slow evaporation of the solvent at 278 K over 11 days.
6. Refinement
Crystal data, data collection and structure . Hydrogen atoms were included at calculated positions [C—H(aromatic) = 0.95 Å or C—H(methyl) = 0.98 Å] and treated as riding, with UisoH = 1.2UeqC(aromatic) or 1.5UeqC(methyl). With (I), although of no importance in this achiral molecule, the Flack factor (Parsons et al., 2013) was determined as 0.05 (3) for 1450 Friedel pairs.
details are summarized in Table 3Supporting information
https://doi.org/10.1107/S2056989015018289/zs2342sup1.cif
contains datablocks I, II, 1. DOI:Structure factors: contains datablock I. DOI: https://doi.org/10.1107/S2056989015018289/zs2342Isup4.hkl
Structure factors: contains datablock II. DOI: https://doi.org/10.1107/S2056989015018289/zs2342IIsup5.hkl
Supporting information file. DOI: https://doi.org/10.1107/S2056989015018289/zs2342Isup4.cml
Supporting information file. DOI: https://doi.org/10.1107/S2056989015018289/zs2342IIsup5.cml
For both compounds, data collection: APEX2 (Bruker, 2002); cell
SAINT (Bruker, 2002); data reduction: SAINT (Bruker, 2002); program(s) used to solve structure: SHELXS97 (Sheldrick, 2008); program(s) used to refine structure: SHELXL2014 (Sheldrick, 2015); molecular graphics: Mercury (Macrae et al., 2008); software used to prepare material for publication: SHELXTL (Sheldrick, 2008).C15H16N2OS | F(000) = 288 |
Mr = 272.36 | Dx = 1.307 Mg m−3 |
Monoclinic, P21 | Mo Kα radiation, λ = 0.71073 Å |
a = 9.0682 (7) Å | Cell parameters from 2915 reflections |
b = 6.8402 (5) Å | θ = 2.3–27.4° |
c = 11.4686 (9) Å | µ = 0.23 mm−1 |
β = 103.349 (1)° | T = 173 K |
V = 692.16 (9) Å3 | Plate, colourless |
Z = 2 | 0.40 × 0.35 × 0.12 mm |
Bruker SMART APEXII diffractometer | 2961 reflections with I > 2σ(I) |
φ and ω scans | Rint = 0.022 |
Absorption correction: multi-scan (SADABS; Bruker, 2002) | θmax = 27.4°, θmin = 1.8° |
Tmin = 0.687, Tmax = 0.746 | h = −11→11 |
8061 measured reflections | k = −8→8 |
3145 independent reflections | l = −14→14 |
Refinement on F2 | Hydrogen site location: inferred from neighbouring sites |
Least-squares matrix: full | H-atom parameters constrained |
R[F2 > 2σ(F2)] = 0.027 | w = 1/[σ2(Fo2) + (0.0297P)2 + 0.1164P] where P = (Fo2 + 2Fc2)/3 |
wR(F2) = 0.067 | (Δ/σ)max < 0.001 |
S = 1.05 | Δρmax = 0.19 e Å−3 |
3145 reflections | Δρmin = −0.15 e Å−3 |
174 parameters | Absolute structure: Flack x determined using 1285 quotients [(I+)-(I-)]/[(I+)+(I-)] (Parsons et al., 2013) |
1 restraint | Absolute structure parameter: 0.05 (3) |
Geometry. All e.s.d.'s 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. |
x | y | z | Uiso*/Ueq | ||
S1 | 0.32124 (5) | 0.41906 (8) | 0.67886 (4) | 0.02848 (13) | |
O1 | 0.41605 (17) | 0.0518 (2) | 0.71103 (13) | 0.0314 (3) | |
N1 | 0.2797 (2) | 0.1212 (3) | 0.52292 (15) | 0.0265 (4) | |
N2 | 0.39549 (17) | 0.4094 (3) | 0.82703 (13) | 0.0264 (3) | |
C1 | 0.2020 (2) | 0.2644 (3) | 0.43921 (17) | 0.0248 (4) | |
C2 | 0.2834 (2) | 0.3936 (4) | 0.38553 (17) | 0.0289 (5) | |
H2A | 0.3910 | 0.3938 | 0.4080 | 0.035* | |
C3 | 0.2080 (3) | 0.5227 (3) | 0.2990 (2) | 0.0352 (5) | |
H3A | 0.2637 | 0.6114 | 0.2619 | 0.042* | |
C4 | 0.0517 (3) | 0.5218 (4) | 0.2669 (2) | 0.0383 (6) | |
H4A | −0.0001 | 0.6109 | 0.2079 | 0.046* | |
C5 | −0.0302 (2) | 0.3922 (4) | 0.31988 (19) | 0.0391 (6) | |
H5A | −0.1378 | 0.3926 | 0.2972 | 0.047* | |
C6 | 0.0446 (2) | 0.2620 (4) | 0.40601 (19) | 0.0317 (5) | |
H6A | −0.0112 | 0.1719 | 0.4420 | 0.038* | |
C7 | 0.2839 (2) | −0.0795 (4) | 0.47987 (18) | 0.0317 (4) | |
H7A | 0.3168 | −0.1675 | 0.5483 | 0.048* | |
H7B | 0.3553 | −0.0877 | 0.4276 | 0.048* | |
H7C | 0.1826 | −0.1176 | 0.4348 | 0.048* | |
C8 | 0.3469 (2) | 0.1659 (3) | 0.63758 (18) | 0.0247 (4) | |
C9 | 0.3038 (3) | 0.3084 (4) | 0.8984 (2) | 0.0330 (5) | |
H9A | 0.3380 | 0.3467 | 0.9827 | 0.050* | |
H9B | 0.3151 | 0.1668 | 0.8911 | 0.050* | |
H9C | 0.1970 | 0.3443 | 0.8691 | 0.050* | |
C10 | 0.5557 (2) | 0.4074 (4) | 0.86869 (15) | 0.0248 (4) | |
C11 | 0.6441 (3) | 0.5337 (4) | 0.81829 (18) | 0.0317 (5) | |
H11A | 0.5971 | 0.6177 | 0.7545 | 0.038* | |
C12 | 0.8000 (3) | 0.5379 (4) | 0.8604 (2) | 0.0364 (5) | |
H12A | 0.8592 | 0.6238 | 0.8248 | 0.044* | |
C13 | 0.8703 (2) | 0.4179 (5) | 0.95412 (18) | 0.0363 (5) | |
H13A | 0.9774 | 0.4200 | 0.9825 | 0.044* | |
C14 | 0.7824 (3) | 0.2954 (4) | 1.0056 (2) | 0.0357 (5) | |
H14A | 0.8297 | 0.2139 | 1.0706 | 0.043* | |
C15 | 0.6264 (3) | 0.2891 (3) | 0.9641 (2) | 0.0306 (5) | |
H15A | 0.5676 | 0.2041 | 1.0008 | 0.037* |
U11 | U22 | U33 | U12 | U13 | U23 | |
S1 | 0.0321 (2) | 0.0234 (2) | 0.0263 (2) | 0.0027 (2) | −0.00070 (17) | −0.0012 (2) |
O1 | 0.0339 (8) | 0.0284 (8) | 0.0284 (8) | 0.0061 (6) | 0.0002 (6) | 0.0003 (7) |
N1 | 0.0291 (9) | 0.0245 (9) | 0.0240 (8) | −0.0005 (7) | 0.0019 (7) | −0.0019 (7) |
N2 | 0.0278 (8) | 0.0279 (8) | 0.0232 (7) | −0.0030 (9) | 0.0053 (6) | −0.0007 (9) |
C1 | 0.0266 (10) | 0.0259 (10) | 0.0207 (10) | 0.0016 (8) | 0.0031 (8) | −0.0037 (8) |
C2 | 0.0283 (10) | 0.0291 (13) | 0.0273 (9) | −0.0012 (9) | 0.0021 (8) | −0.0029 (9) |
C3 | 0.0461 (13) | 0.0285 (12) | 0.0294 (11) | −0.0029 (10) | 0.0054 (10) | −0.0002 (9) |
C4 | 0.0475 (14) | 0.0365 (13) | 0.0268 (11) | 0.0149 (11) | −0.0002 (10) | 0.0002 (10) |
C5 | 0.0275 (10) | 0.0534 (17) | 0.0340 (11) | 0.0107 (12) | 0.0024 (8) | −0.0059 (12) |
C6 | 0.0253 (10) | 0.0419 (13) | 0.0285 (11) | 0.0011 (9) | 0.0075 (8) | −0.0026 (9) |
C7 | 0.0364 (10) | 0.0276 (9) | 0.0309 (10) | 0.0006 (12) | 0.0073 (8) | −0.0040 (12) |
C8 | 0.0222 (9) | 0.0231 (10) | 0.0287 (10) | −0.0003 (8) | 0.0059 (8) | −0.0021 (8) |
C9 | 0.0323 (11) | 0.0330 (12) | 0.0355 (12) | −0.0054 (10) | 0.0115 (9) | −0.0031 (10) |
C10 | 0.0292 (9) | 0.0252 (9) | 0.0197 (8) | −0.0028 (10) | 0.0049 (7) | −0.0053 (9) |
C11 | 0.0363 (11) | 0.0364 (12) | 0.0218 (10) | −0.0061 (10) | 0.0055 (9) | 0.0016 (9) |
C12 | 0.0351 (12) | 0.0457 (14) | 0.0302 (11) | −0.0135 (11) | 0.0115 (10) | −0.0034 (10) |
C13 | 0.0286 (10) | 0.0442 (12) | 0.0348 (10) | −0.0034 (13) | 0.0045 (8) | −0.0094 (14) |
C14 | 0.0363 (12) | 0.0343 (11) | 0.0322 (12) | 0.0010 (10) | −0.0007 (9) | 0.0006 (10) |
C15 | 0.0345 (11) | 0.0261 (10) | 0.0307 (11) | −0.0027 (10) | 0.0069 (9) | 0.0017 (9) |
S1—N2 | 1.6784 (15) | C6—H6A | 0.9500 |
S1—C8 | 1.824 (2) | C7—H7A | 0.9800 |
O1—C8 | 1.212 (3) | C7—H7B | 0.9800 |
N1—C8 | 1.351 (3) | C7—H7C | 0.9800 |
N1—C1 | 1.437 (3) | C9—H9A | 0.9800 |
N1—C7 | 1.462 (3) | C9—H9B | 0.9800 |
N2—C10 | 1.421 (2) | C9—H9C | 0.9800 |
N2—C9 | 1.467 (3) | C10—C11 | 1.392 (3) |
C1—C2 | 1.383 (3) | C10—C15 | 1.393 (3) |
C1—C6 | 1.390 (3) | C11—C12 | 1.385 (3) |
C2—C3 | 1.385 (3) | C11—H11A | 0.9500 |
C2—H2A | 0.9500 | C12—C13 | 1.385 (4) |
C3—C4 | 1.380 (3) | C12—H12A | 0.9500 |
C3—H3A | 0.9500 | C13—C14 | 1.379 (4) |
C4—C5 | 1.384 (4) | C13—H13A | 0.9500 |
C4—H4A | 0.9500 | C14—C15 | 1.385 (3) |
C5—C6 | 1.386 (3) | C14—H14A | 0.9500 |
C5—H5A | 0.9500 | C15—H15A | 0.9500 |
N2—S1—C8 | 100.36 (10) | H7A—C7—H7C | 109.5 |
C8—N1—C1 | 122.48 (18) | H7B—C7—H7C | 109.5 |
C8—N1—C7 | 120.04 (17) | O1—C8—N1 | 125.12 (19) |
C1—N1—C7 | 117.48 (16) | O1—C8—S1 | 120.52 (16) |
C10—N2—C9 | 118.37 (17) | N1—C8—S1 | 114.34 (15) |
C10—N2—S1 | 118.74 (12) | N2—C9—H9A | 109.5 |
C9—N2—S1 | 115.90 (14) | N2—C9—H9B | 109.5 |
C2—C1—C6 | 120.34 (19) | H9A—C9—H9B | 109.5 |
C2—C1—N1 | 120.23 (18) | N2—C9—H9C | 109.5 |
C6—C1—N1 | 119.25 (19) | H9A—C9—H9C | 109.5 |
C1—C2—C3 | 120.05 (19) | H9B—C9—H9C | 109.5 |
C1—C2—H2A | 120.0 | C11—C10—C15 | 118.84 (18) |
C3—C2—H2A | 120.0 | C11—C10—N2 | 119.8 (2) |
C4—C3—C2 | 119.7 (2) | C15—C10—N2 | 121.28 (19) |
C4—C3—H3A | 120.2 | C12—C11—C10 | 120.5 (2) |
C2—C3—H3A | 120.2 | C12—C11—H11A | 119.8 |
C3—C4—C5 | 120.5 (2) | C10—C11—H11A | 119.8 |
C3—C4—H4A | 119.7 | C11—C12—C13 | 120.6 (2) |
C5—C4—H4A | 119.7 | C11—C12—H12A | 119.7 |
C4—C5—C6 | 120.1 (2) | C13—C12—H12A | 119.7 |
C4—C5—H5A | 120.0 | C14—C13—C12 | 118.91 (19) |
C6—C5—H5A | 120.0 | C14—C13—H13A | 120.5 |
C5—C6—C1 | 119.4 (2) | C12—C13—H13A | 120.5 |
C5—C6—H6A | 120.3 | C13—C14—C15 | 121.1 (2) |
C1—C6—H6A | 120.3 | C13—C14—H14A | 119.4 |
N1—C7—H7A | 109.5 | C15—C14—H14A | 119.4 |
N1—C7—H7B | 109.5 | C14—C15—C10 | 120.0 (2) |
H7A—C7—H7B | 109.5 | C14—C15—H15A | 120.0 |
N1—C7—H7C | 109.5 | C10—C15—H15A | 120.0 |
C8—S1—N2—C10 | 77.3 (2) | C1—N1—C8—S1 | 3.3 (2) |
C8—S1—N2—C9 | −73.05 (18) | C7—N1—C8—S1 | −176.52 (14) |
C8—N1—C1—C2 | 78.2 (3) | N2—S1—C8—O1 | −6.02 (19) |
C7—N1—C1—C2 | −101.9 (2) | N2—S1—C8—N1 | 172.19 (14) |
C8—N1—C1—C6 | −106.6 (2) | C9—N2—C10—C11 | −166.6 (2) |
C7—N1—C1—C6 | 73.2 (2) | S1—N2—C10—C11 | 43.8 (3) |
C6—C1—C2—C3 | 0.6 (3) | C9—N2—C10—C15 | 9.7 (3) |
N1—C1—C2—C3 | 175.69 (19) | S1—N2—C10—C15 | −139.90 (19) |
C1—C2—C3—C4 | 0.1 (3) | C15—C10—C11—C12 | 1.6 (3) |
C2—C3—C4—C5 | −0.4 (3) | N2—C10—C11—C12 | 178.0 (2) |
C3—C4—C5—C6 | 0.0 (4) | C10—C11—C12—C13 | −0.6 (4) |
C4—C5—C6—C1 | 0.6 (3) | C11—C12—C13—C14 | −0.6 (4) |
C2—C1—C6—C5 | −0.9 (3) | C12—C13—C14—C15 | 0.8 (4) |
N1—C1—C6—C5 | −176.1 (2) | C13—C14—C15—C10 | 0.2 (4) |
C1—N1—C8—O1 | −178.6 (2) | C11—C10—C15—C14 | −1.4 (3) |
C7—N1—C8—O1 | 1.6 (3) | N2—C10—C15—C14 | −177.7 (2) |
C15H16N2OS2 | F(000) = 640 |
Mr = 304.42 | Dx = 1.375 Mg m−3 |
Monoclinic, P21/c | Mo Kα radiation, λ = 0.71073 Å |
a = 16.0414 (17) Å | Cell parameters from 2950 reflections |
b = 5.5023 (6) Å | θ = 3.1–27.5° |
c = 17.2986 (19) Å | µ = 0.36 mm−1 |
β = 105.564 (1)° | T = 123 K |
V = 1470.9 (3) Å3 | Block, colorless |
Z = 4 | 0.41 × 0.18 × 0.12 mm |
Bruker APEXII CCD diffractometer | 3033 reflections with I > 2σ(I) |
Radiation source: sealed tube | Rint = 0.024 |
φ and ω scans | θmax = 27.5°, θmin = 1.3° |
Absorption correction: multi-scan (SADABS; Bruker, 2002) | h = −20→20 |
Tmin = 0.699, Tmax = 0.746 | k = −7→7 |
16044 measured reflections | l = −22→22 |
3355 independent reflections |
Refinement on F2 | 0 restraints |
Least-squares matrix: full | Hydrogen site location: inferred from neighbouring sites |
R[F2 > 2σ(F2)] = 0.028 | H-atom parameters constrained |
wR(F2) = 0.070 | w = 1/[σ2(Fo2) + (0.0301P)2 + 0.7728P] where P = (Fo2 + 2Fc2)/3 |
S = 1.06 | (Δ/σ)max < 0.001 |
3355 reflections | Δρmax = 0.32 e Å−3 |
183 parameters | Δρmin = −0.22 e Å−3 |
Geometry. All e.s.d.'s 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. |
x | y | z | Uiso*/Ueq | ||
S1 | 0.24264 (2) | 0.27366 (6) | 0.12829 (2) | 0.01720 (9) | |
S2 | 0.27516 (2) | 0.52421 (6) | 0.05260 (2) | 0.01821 (9) | |
O1 | 0.15803 (6) | 0.07736 (18) | −0.01294 (5) | 0.0215 (2) | |
N1 | 0.12052 (7) | −0.0673 (2) | 0.09646 (6) | 0.0173 (2) | |
N2 | 0.36329 (7) | 0.4255 (2) | 0.02877 (6) | 0.0184 (2) | |
C1 | 0.12310 (8) | −0.0405 (2) | 0.18005 (7) | 0.0160 (2) | |
C2 | 0.16345 (8) | −0.2156 (2) | 0.23508 (8) | 0.0199 (3) | |
H2A | 0.1907 | −0.3512 | 0.2182 | 0.024* | |
C3 | 0.16379 (9) | −0.1914 (3) | 0.31517 (8) | 0.0232 (3) | |
H3A | 0.1907 | −0.3119 | 0.3530 | 0.028* | |
C4 | 0.12493 (9) | 0.0083 (3) | 0.33984 (8) | 0.0227 (3) | |
H4A | 0.1266 | 0.0268 | 0.3948 | 0.027* | |
C5 | 0.08363 (9) | 0.1808 (3) | 0.28448 (8) | 0.0239 (3) | |
H5A | 0.0565 | 0.3166 | 0.3015 | 0.029* | |
C6 | 0.08171 (8) | 0.1558 (2) | 0.20413 (8) | 0.0209 (3) | |
H6A | 0.0523 | 0.2721 | 0.1659 | 0.025* | |
C7 | 0.06129 (8) | −0.2499 (2) | 0.05015 (8) | 0.0204 (3) | |
H7A | 0.0626 | −0.2431 | −0.0061 | 0.031* | |
H7B | 0.0024 | −0.2168 | 0.0537 | 0.031* | |
H7C | 0.0792 | −0.4118 | 0.0719 | 0.031* | |
C8 | 0.16585 (8) | 0.0771 (2) | 0.05874 (7) | 0.0163 (2) | |
C9 | 0.34991 (9) | 0.2336 (3) | −0.03205 (8) | 0.0233 (3) | |
H9A | 0.3968 | 0.2384 | −0.0585 | 0.035* | |
H9B | 0.2943 | 0.2589 | −0.0720 | 0.035* | |
H9C | 0.3497 | 0.0750 | −0.0063 | 0.035* | |
C10 | 0.44464 (8) | 0.4352 (2) | 0.08806 (7) | 0.0168 (2) | |
C11 | 0.50700 (9) | 0.2568 (2) | 0.09139 (8) | 0.0219 (3) | |
H11A | 0.4951 | 0.1250 | 0.0546 | 0.026* | |
C12 | 0.58679 (9) | 0.2706 (3) | 0.14843 (9) | 0.0256 (3) | |
H12A | 0.6291 | 0.1485 | 0.1500 | 0.031* | |
C13 | 0.60500 (9) | 0.4600 (3) | 0.20266 (8) | 0.0242 (3) | |
H13A | 0.6594 | 0.4686 | 0.2416 | 0.029* | |
C14 | 0.54283 (9) | 0.6379 (3) | 0.19970 (8) | 0.0228 (3) | |
H14A | 0.5548 | 0.7683 | 0.2371 | 0.027* | |
C15 | 0.46357 (9) | 0.6273 (2) | 0.14279 (8) | 0.0202 (3) | |
H15A | 0.4219 | 0.7512 | 0.1410 | 0.024* |
U11 | U22 | U33 | U12 | U13 | U23 | |
S1 | 0.01726 (16) | 0.01986 (16) | 0.01529 (15) | −0.00238 (11) | 0.00576 (12) | −0.00051 (11) |
S2 | 0.01769 (16) | 0.01601 (16) | 0.02234 (16) | 0.00171 (11) | 0.00784 (12) | 0.00252 (12) |
O1 | 0.0234 (5) | 0.0262 (5) | 0.0148 (4) | −0.0021 (4) | 0.0049 (4) | 0.0012 (4) |
N1 | 0.0179 (5) | 0.0187 (5) | 0.0158 (5) | −0.0033 (4) | 0.0055 (4) | −0.0012 (4) |
N2 | 0.0170 (5) | 0.0226 (6) | 0.0175 (5) | −0.0012 (4) | 0.0079 (4) | −0.0021 (4) |
C1 | 0.0150 (6) | 0.0183 (6) | 0.0159 (6) | −0.0029 (5) | 0.0063 (4) | −0.0013 (5) |
C2 | 0.0203 (6) | 0.0192 (6) | 0.0208 (6) | 0.0021 (5) | 0.0066 (5) | −0.0011 (5) |
C3 | 0.0234 (7) | 0.0254 (7) | 0.0192 (6) | 0.0008 (5) | 0.0030 (5) | 0.0033 (5) |
C4 | 0.0231 (7) | 0.0293 (7) | 0.0177 (6) | −0.0064 (5) | 0.0088 (5) | −0.0050 (5) |
C5 | 0.0269 (7) | 0.0203 (7) | 0.0299 (7) | −0.0006 (5) | 0.0168 (6) | −0.0042 (5) |
C6 | 0.0211 (6) | 0.0193 (6) | 0.0251 (7) | 0.0025 (5) | 0.0110 (5) | 0.0037 (5) |
C7 | 0.0197 (6) | 0.0204 (6) | 0.0198 (6) | −0.0034 (5) | 0.0031 (5) | −0.0009 (5) |
C8 | 0.0144 (6) | 0.0161 (6) | 0.0181 (6) | 0.0020 (5) | 0.0039 (5) | 0.0013 (5) |
C9 | 0.0211 (6) | 0.0322 (8) | 0.0173 (6) | −0.0031 (5) | 0.0064 (5) | −0.0068 (5) |
C10 | 0.0177 (6) | 0.0185 (6) | 0.0165 (6) | −0.0035 (5) | 0.0087 (5) | 0.0004 (5) |
C11 | 0.0235 (7) | 0.0204 (7) | 0.0225 (6) | −0.0008 (5) | 0.0074 (5) | −0.0064 (5) |
C12 | 0.0212 (7) | 0.0255 (7) | 0.0295 (7) | 0.0026 (5) | 0.0056 (6) | −0.0049 (6) |
C13 | 0.0198 (6) | 0.0292 (7) | 0.0228 (7) | −0.0040 (5) | 0.0042 (5) | −0.0027 (6) |
C14 | 0.0264 (7) | 0.0220 (7) | 0.0218 (6) | −0.0060 (5) | 0.0098 (5) | −0.0069 (5) |
C15 | 0.0226 (6) | 0.0177 (6) | 0.0230 (6) | −0.0014 (5) | 0.0106 (5) | −0.0023 (5) |
S1—C8 | 1.8273 (13) | C6—H6A | 0.9500 |
S1—S2 | 2.0625 (5) | C7—H7A | 0.9800 |
S2—N2 | 1.6660 (11) | C7—H7B | 0.9800 |
O1—C8 | 1.2123 (15) | C7—H7C | 0.9800 |
N1—C8 | 1.3569 (16) | C9—H9A | 0.9800 |
N1—C1 | 1.4429 (15) | C9—H9B | 0.9800 |
N1—C7 | 1.4646 (16) | C9—H9C | 0.9800 |
N2—C10 | 1.4281 (16) | C10—C11 | 1.3917 (18) |
N2—C9 | 1.4656 (16) | C10—C15 | 1.3967 (18) |
C1—C2 | 1.3865 (18) | C11—C12 | 1.3929 (19) |
C1—C6 | 1.3888 (18) | C11—H11A | 0.9500 |
C2—C3 | 1.3905 (18) | C12—C13 | 1.3800 (19) |
C2—H2A | 0.9500 | C12—H12A | 0.9500 |
C3—C4 | 1.386 (2) | C13—C14 | 1.388 (2) |
C3—H3A | 0.9500 | C13—H13A | 0.9500 |
C4—C5 | 1.384 (2) | C14—C15 | 1.3847 (19) |
C4—H4A | 0.9500 | C14—H14A | 0.9500 |
C5—C6 | 1.3888 (18) | C15—H15A | 0.9500 |
C5—H5A | 0.9500 | ||
C8—S1—S2 | 102.60 (4) | H7A—C7—H7C | 109.5 |
N2—S2—S1 | 108.37 (4) | H7B—C7—H7C | 109.5 |
C8—N1—C1 | 123.17 (10) | O1—C8—N1 | 124.80 (12) |
C8—N1—C7 | 119.43 (10) | O1—C8—S1 | 122.64 (10) |
C1—N1—C7 | 117.28 (10) | N1—C8—S1 | 112.55 (9) |
C10—N2—C9 | 118.17 (11) | N2—C9—H9A | 109.5 |
C10—N2—S2 | 118.86 (8) | N2—C9—H9B | 109.5 |
C9—N2—S2 | 116.23 (8) | H9A—C9—H9B | 109.5 |
C2—C1—C6 | 120.47 (11) | N2—C9—H9C | 109.5 |
C2—C1—N1 | 119.97 (11) | H9A—C9—H9C | 109.5 |
C6—C1—N1 | 119.51 (11) | H9B—C9—H9C | 109.5 |
C1—C2—C3 | 119.60 (12) | C11—C10—C15 | 118.84 (12) |
C1—C2—H2A | 120.2 | C11—C10—N2 | 120.77 (11) |
C3—C2—H2A | 120.2 | C15—C10—N2 | 120.38 (12) |
C4—C3—C2 | 120.05 (13) | C10—C11—C12 | 120.30 (12) |
C4—C3—H3A | 120.0 | C10—C11—H11A | 119.8 |
C2—C3—H3A | 120.0 | C12—C11—H11A | 119.8 |
C5—C4—C3 | 120.12 (12) | C13—C12—C11 | 120.62 (13) |
C5—C4—H4A | 119.9 | C13—C12—H12A | 119.7 |
C3—C4—H4A | 119.9 | C11—C12—H12A | 119.7 |
C4—C5—C6 | 120.16 (12) | C12—C13—C14 | 119.24 (13) |
C4—C5—H5A | 119.9 | C12—C13—H13A | 120.4 |
C6—C5—H5A | 119.9 | C14—C13—H13A | 120.4 |
C1—C6—C5 | 119.55 (12) | C15—C14—C13 | 120.65 (12) |
C1—C6—H6A | 120.2 | C15—C14—H14A | 119.7 |
C5—C6—H6A | 120.2 | C13—C14—H14A | 119.7 |
N1—C7—H7A | 109.5 | C14—C15—C10 | 120.34 (12) |
N1—C7—H7B | 109.5 | C14—C15—H15A | 119.8 |
H7A—C7—H7B | 109.5 | C10—C15—H15A | 119.8 |
N1—C7—H7C | 109.5 | ||
S1—S2—N2—C10 | −72.86 (10) | C7—N1—C8—S1 | −175.04 (9) |
S1—S2—N2—C9 | 77.90 (9) | C8—S1—S2—N2 | −92.62 (6) |
C8—N1—C1—C2 | −110.35 (14) | S2—S1—C8—O1 | 15.13 (12) |
C7—N1—C1—C2 | 73.77 (15) | S2—S1—C8—N1 | −165.53 (8) |
C8—N1—C1—C6 | 72.46 (16) | C9—N2—C10—C11 | −4.59 (17) |
C7—N1—C1—C6 | −103.41 (14) | S2—N2—C10—C11 | 145.60 (11) |
C6—C1—C2—C3 | −1.25 (19) | C9—N2—C10—C15 | 174.12 (11) |
N1—C1—C2—C3 | −178.41 (12) | S2—N2—C10—C15 | −35.69 (15) |
C1—C2—C3—C4 | −0.8 (2) | C15—C10—C11—C12 | −0.02 (19) |
C2—C3—C4—C5 | 1.8 (2) | N2—C10—C11—C12 | 178.70 (12) |
C3—C4—C5—C6 | −0.6 (2) | C10—C11—C12—C13 | 0.4 (2) |
C2—C1—C6—C5 | 2.36 (19) | C11—C12—C13—C14 | −0.2 (2) |
N1—C1—C6—C5 | 179.54 (12) | C12—C13—C14—C15 | −0.4 (2) |
C4—C5—C6—C1 | −1.4 (2) | C13—C14—C15—C10 | 0.8 (2) |
C1—N1—C8—O1 | −171.52 (12) | C11—C10—C15—C14 | −0.56 (19) |
C7—N1—C8—O1 | 4.27 (19) | N2—C10—C15—C14 | −179.29 (11) |
C1—N1—C8—S1 | 9.16 (15) |
D—H···A | D—H | H···A | D···A | D—H···A |
C2—H2A···S1i | 0.95 | 2.84 | 3.766 (1) | 165 |
C7—H7B···O1ii | 0.98 | 2.60 | 3.532 (2) | 160 |
Symmetry codes: (i) x, y−1, z; (ii) −x, −y, −z. |
Note that when S is not numbered, it is S1 for compound (I) and S2 for compound (II). To specify certain torsion angles, the last atom in the linear structure differs between the two compounds, so X is used in place of an atom label. |
(I) | (II) | |
N1—C8 | 1.351 (3) | 1.357 (2) |
S—N2 | 1.678 (2) | 1.666 (1) |
S1—C8 | 1.824 (2) | 1.827 (1) |
S1—S2 | – | 2.0625 (5) |
C9—N2—S | 115.90 (14) | 116.23 (8) |
C10—N2—S | 118.74 (12) | 118.86 (8) |
C10—N2—C9 | 118.37 (17) | 118.17 (11) |
C1—N1—C8—S1 | 3.3 (2) | 9.16 (15) |
N1—C8—S1—X | 172.19 (14) | -165.53 (8) |
C8—S1—S2—N2 | – | -92.62 (6) |
C10—N2—S—X | 77.3 (2) | -72.86 (10) |
Acknowledgements
We thank Barbara L. Goldenberg for outstanding assistance in the preparation of this manuscript and Dominique Chavatte-Kallender, Phillip T. Goldblatt, David A. Halsrud, Kenneth P. Morris, and Andrew W. Mott for preparing (I) and (II) over the years.
References
Barany, G., Henley, M. J., Polski, L. A., Schroll, A. L. & Young, V. G. (2015). Acta Cryst. E71, 836–839. CSD CrossRef IUCr Journals Google Scholar
Barany, G. & Mott, A. W. (1984). J. Org. Chem. 49, 1043–1051. CrossRef CAS Web of Science Google Scholar
Barany, G., Schroll, A. L., Mott, A. W. & Halsrud, D. A. (1983). J. Org. Chem. 48, 4750–4761. CrossRef CAS Web of Science Google Scholar
Bereman, R. D., Baird, D. M., Bordner, J. & Dorfman, J. R. (1983). Polyhedron, 2, 25–30. CSD CrossRef CAS Web of Science Google Scholar
Bruker (2002). APEX2, SMART, SAINT and SADABS. Bruker AXS Inc., Madison, Wisconsin, USA. Google Scholar
Farrell, D. M. M., Glidewell, C., Low, J. N., Skakle, J. M. S. & Zakaria, C. M. (2002). Acta Cryst. B58, 289–299. Web of Science CSD CrossRef CAS IUCr Journals Google Scholar
Groom, C. R. & Allen, F. H. (2014). Angew. Chem. Int. Ed. 53, 662–671. Web of Science CSD CrossRef CAS Google Scholar
Li, F., Yin, H.-D., Hong, M., Zhai, J. & Wang, D.-Q. (2006). Acta Cryst. E62, m1417–m1418. Web of Science CSD CrossRef IUCr Journals Google Scholar
Macrae, C. F., Bruno, I. J., Chisholm, J. A., Edgington, P. R., McCabe, P., Pidcock, E., Rodriguez-Monge, L., Taylor, R., van de Streek, J. & Wood, P. A. (2008). J. Appl. Cryst. 41, 466–470. Web of Science CSD CrossRef CAS IUCr Journals Google Scholar
Parsons, S., Flack, H. D. & Wagner, T. (2013). Acta Cryst. B69, 249–259. Web of Science CrossRef CAS IUCr Journals Google Scholar
Pauling, L. (1949). Proc. Natl Acad. Sci. USA, 35, 495–499. CrossRef PubMed CAS Web of Science Google Scholar
Schrader, A. M., Schroll, A. L. & Barany, G. (2011). J. Org. Chem. 76, 7882–7892. Web of Science CrossRef CAS PubMed Google Scholar
Schroll, A. L. & Barany, G. (1986). J. Org. Chem. 51, 1866–1881. CrossRef CAS Web of Science Google Scholar
Schroll, A. L., Pink, M. & Barany, G. (2012). Acta Cryst. E68, o1550. CSD CrossRef IUCr Journals Google Scholar
Sheldrick, G. M. (2008). Acta Cryst. A64, 112–122. Web of Science CrossRef CAS IUCr Journals Google Scholar
Sheldrick, G. M. (2015). Acta Cryst. C71, 3–8. Web of Science CrossRef IUCr Journals Google Scholar
Torrico-Vallejos, S., Erben, M. F., Boese, R. & Della Védova, C. O. (2010). New J. Chem. 34, 1365–1372. CAS Google Scholar
Ul-Haque, M. & Behforouz, M. (1976). J. Chem. Soc. Perkin Trans. 2, pp. 1459–1462. Google Scholar
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