Supporting information
Crystallographic Information File (CIF) https://doi.org/10.1107/S1600536807042432/hb2511sup1.cif | |
Structure factor file (CIF format) https://doi.org/10.1107/S1600536807042432/hb2511Isup2.hkl |
CCDC reference: 663689
The title compound was prepared as described previously (Oki & Yamada, 1988) and colourless blocks of (I) were recystallized from n-hexane.
All the H atoms were geometrically placed (C—H = 0.95–0.97 Å) and refined as riding with Uiso(H) = 1.2Ueq(C) or 1.5Ueq(methyl C).
As part of a broader study into sterically crowded naphthalene derivatives (Aucott et al., 2004), here we report the structure of the title compound, (I), (Fig. 1), which contains two independent molecules. The intramolecular Br···SEt distances are 3.056 (2) and 3.050 (2) Å. The bromine and sulfur atoms show minor deviations above/below their attached ring planes: S9 = 0.022 (2) Å, S29 = -0.016 (2) Å, Br1 = -0.117 (1) Å and Br21 = -0.018 (1) Å. naphthalene planes
The molecules pack in a herringbone array with no significant π–π interactions. The shortest intermolecular S···S distance is 4.199 (2) Å and there is a weak intermolecular C—H···Br interaction [for C22–H22A···Br1: H···Br = 3.025 Å, C—H···Br = 167°].
For background, see: Aucott et al. (2004). For synthesis, see Oki & Yamada (1988).
Data collection: SCXmini (Rigaku, 2006); cell refinement: PROCESS-AUTO (Rigaku, 1998); data reduction: PROCESS-AUTO (Rigaku, 1998); program(s) used to solve structure: SHELXS97 (Sheldrick, 1997); program(s) used to refine structure: SHELXL97 (Sheldrick, 1997); molecular graphics: CrystalStructure (Rigaku, 2006); software used to prepare material for publication: CrystalStructure (Rigaku, 2006).
Fig. 1. The molecular structure of (I) with displacement ellipsoids drawn at the 50% probability level (arbitrary spheres for the H atoms). |
C12H11BrS | F(000) = 1072 |
Mr = 267.18 | Dx = 1.688 Mg m−3 |
Monoclinic, P21/c | Mo Kα radiation, λ = 0.71073 Å |
Hall symbol: -P 2ybc | Cell parameters from 3763 reflections |
a = 11.632 (4) Å | θ = 1.6–25.2° |
b = 12.260 (4) Å | µ = 4.06 mm−1 |
c = 14.748 (4) Å | T = 125 K |
β = 91.692 (9)° | Block, colourless |
V = 2102.2 (11) Å3 | 0.25 × 0.20 × 0.20 mm |
Z = 8 |
Rigaku SCXmini CCD diffractometer | 3543 independent reflections |
Radiation source: fine-focus sealed tube | 2316 reflections with I > 2σ(I) |
Graphite monochromator | Rint = 0.079 |
ω scans | θmax = 25.0°, θmin = 7.8° |
Absorption correction: multi-scan (ABSCOR; Higashi, 1995) | h = 0→13 |
Tmin = 0.396, Tmax = 0.452 | k = −14→14 |
6713 measured reflections | l = −17→17 |
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)] = 0.053 | Hydrogen site location: inferred from neighbouring sites |
wR(F2) = 0.106 | H-atom parameters constrained |
S = 0.99 | w = 1/[σ2(Fo2) + (0.044P)2] where P = (Fo2 + 2Fc2)/3 |
3543 reflections | (Δ/σ)max < 0.001 |
254 parameters | Δρmax = 0.46 e Å−3 |
0 restraints | Δρmin = −0.47 e Å−3 |
C12H11BrS | V = 2102.2 (11) Å3 |
Mr = 267.18 | Z = 8 |
Monoclinic, P21/c | Mo Kα radiation |
a = 11.632 (4) Å | µ = 4.06 mm−1 |
b = 12.260 (4) Å | T = 125 K |
c = 14.748 (4) Å | 0.25 × 0.20 × 0.20 mm |
β = 91.692 (9)° |
Rigaku SCXmini CCD diffractometer | 3543 independent reflections |
Absorption correction: multi-scan (ABSCOR; Higashi, 1995) | 2316 reflections with I > 2σ(I) |
Tmin = 0.396, Tmax = 0.452 | Rint = 0.079 |
6713 measured reflections |
R[F2 > 2σ(F2)] = 0.053 | 0 restraints |
wR(F2) = 0.106 | H-atom parameters constrained |
S = 0.99 | Δρmax = 0.46 e Å−3 |
3543 reflections | Δρmin = −0.47 e Å−3 |
254 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 | ||
Br1 | 0.07289 (6) | 0.47998 (5) | 0.38936 (4) | 0.02453 (19) | |
C1 | 0.0346 (5) | 0.4500 (5) | 0.2657 (4) | 0.0190 (14) | |
C2 | −0.0539 (6) | 0.5134 (6) | 0.2332 (4) | 0.0275 (15) | |
H2A | −0.0850 | 0.5682 | 0.2709 | 0.033* | |
C3 | −0.0995 (6) | 0.4985 (6) | 0.1450 (5) | 0.0291 (17) | |
H3A | −0.1620 | 0.5418 | 0.1229 | 0.035* | |
C4 | −0.0529 (5) | 0.4216 (6) | 0.0921 (4) | 0.0229 (15) | |
H4A | −0.0837 | 0.4111 | 0.0323 | 0.027* | |
C5 | 0.0391 (5) | 0.3568 (5) | 0.1223 (4) | 0.0201 (14) | |
C6 | 0.0854 (5) | 0.2758 (5) | 0.0626 (4) | 0.0191 (14) | |
H6A | 0.0515 | 0.2656 | 0.0038 | 0.023* | |
C7 | 0.1740 (6) | 0.2160 (5) | 0.0887 (4) | 0.0195 (14) | |
H7A | 0.2043 | 0.1642 | 0.0478 | 0.023* | |
C8 | 0.2248 (6) | 0.2269 (5) | 0.1753 (4) | 0.0222 (14) | |
H8A | 0.2887 | 0.1821 | 0.1917 | 0.027* | |
C9 | 0.1853 (5) | 0.3003 (5) | 0.2373 (4) | 0.0172 (13) | |
C10 | 0.0884 (5) | 0.3688 (5) | 0.2130 (3) | 0.0138 (12) | |
S9 | 0.25526 (14) | 0.31016 (13) | 0.34520 (10) | 0.0209 (4) | |
C11 | 0.3730 (6) | 0.2139 (5) | 0.3396 (4) | 0.0222 (14) | |
H11A | 0.3434 | 0.1385 | 0.3332 | 0.027* | |
H11B | 0.4215 | 0.2304 | 0.2872 | 0.027* | |
C12 | 0.4421 (6) | 0.2271 (5) | 0.4288 (4) | 0.0253 (15) | |
H12A | 0.5073 | 0.1766 | 0.4298 | 0.038* | |
H12B | 0.3926 | 0.2111 | 0.4798 | 0.038* | |
H12C | 0.4705 | 0.3022 | 0.4339 | 0.038* | |
Br21 | 0.33155 (6) | 0.74894 (6) | 0.39260 (4) | 0.0266 (2) | |
C21 | 0.2805 (5) | 0.7861 (5) | 0.2732 (4) | 0.0184 (14) | |
C22 | 0.1837 (6) | 0.7288 (5) | 0.2451 (4) | 0.0254 (15) | |
H22A | 0.1494 | 0.6781 | 0.2848 | 0.031* | |
C23 | 0.1365 (6) | 0.7454 (6) | 0.1584 (4) | 0.0270 (15) | |
H23A | 0.0708 | 0.7048 | 0.1387 | 0.032* | |
C24 | 0.1827 (6) | 0.8179 (5) | 0.1030 (4) | 0.0236 (15) | |
H24A | 0.1493 | 0.8279 | 0.0440 | 0.028* | |
C25 | 0.2803 (5) | 0.8805 (5) | 0.1297 (4) | 0.0209 (14) | |
C26 | 0.3233 (6) | 0.9574 (5) | 0.0688 (4) | 0.0220 (15) | |
H26A | 0.2874 | 0.9659 | 0.0106 | 0.026* | |
C27 | 0.4170 (6) | 1.0206 (6) | 0.0931 (4) | 0.0261 (15) | |
H27A | 0.4446 | 1.0742 | 0.0525 | 0.031* | |
C28 | 0.4710 (6) | 1.0053 (5) | 0.1774 (4) | 0.0255 (15) | |
H28A | 0.5368 | 1.0481 | 0.1929 | 0.031* | |
C29 | 0.4327 (5) | 0.9304 (5) | 0.2397 (4) | 0.0186 (13) | |
C30 | 0.3345 (5) | 0.8662 (5) | 0.2180 (4) | 0.0164 (13) | |
S29 | 0.50989 (14) | 0.92059 (13) | 0.34520 (10) | 0.0221 (4) | |
C31 | 0.6292 (5) | 1.0142 (5) | 0.3351 (4) | 0.0227 (14) | |
H31A | 0.6778 | 0.9927 | 0.2841 | 0.027* | |
H31B | 0.6008 | 1.0893 | 0.3243 | 0.027* | |
C32 | 0.6973 (6) | 1.0079 (6) | 0.4242 (5) | 0.0309 (17) | |
H32A | 0.7635 | 1.0571 | 0.4221 | 0.046* | |
H32B | 0.7243 | 0.9330 | 0.4341 | 0.046* | |
H32C | 0.6481 | 1.0295 | 0.4739 | 0.046* |
U11 | U22 | U33 | U12 | U13 | U23 | |
Br1 | 0.0280 (4) | 0.0259 (3) | 0.0197 (3) | 0.0037 (3) | −0.0004 (3) | −0.0061 (3) |
C1 | 0.021 (3) | 0.018 (3) | 0.018 (3) | 0.001 (3) | 0.003 (3) | −0.002 (2) |
C2 | 0.031 (4) | 0.025 (4) | 0.027 (3) | 0.003 (3) | 0.006 (3) | 0.001 (3) |
C3 | 0.019 (3) | 0.045 (5) | 0.024 (3) | 0.010 (3) | −0.001 (3) | 0.015 (3) |
C4 | 0.013 (3) | 0.039 (4) | 0.016 (3) | −0.004 (3) | −0.002 (3) | 0.004 (3) |
C5 | 0.021 (3) | 0.026 (3) | 0.014 (3) | −0.009 (3) | 0.002 (3) | 0.001 (3) |
C6 | 0.015 (3) | 0.032 (4) | 0.010 (3) | −0.010 (3) | −0.005 (2) | −0.001 (3) |
C7 | 0.026 (4) | 0.019 (3) | 0.013 (3) | −0.009 (3) | 0.003 (3) | −0.006 (2) |
C8 | 0.025 (4) | 0.018 (3) | 0.024 (3) | 0.001 (3) | 0.003 (3) | 0.004 (3) |
C9 | 0.018 (3) | 0.014 (3) | 0.019 (3) | −0.004 (3) | −0.006 (3) | 0.005 (3) |
C10 | 0.013 (3) | 0.022 (3) | 0.006 (3) | −0.009 (3) | −0.001 (2) | 0.003 (2) |
S9 | 0.0258 (9) | 0.0229 (8) | 0.0140 (7) | 0.0070 (7) | −0.0020 (7) | −0.0021 (6) |
C11 | 0.025 (4) | 0.022 (3) | 0.019 (3) | 0.004 (3) | −0.003 (3) | −0.001 (3) |
C12 | 0.025 (4) | 0.026 (4) | 0.024 (3) | 0.008 (3) | −0.008 (3) | 0.002 (3) |
Br21 | 0.0342 (4) | 0.0279 (4) | 0.0174 (3) | −0.0057 (3) | −0.0042 (3) | 0.0074 (3) |
C21 | 0.020 (3) | 0.021 (3) | 0.014 (3) | 0.005 (3) | −0.001 (3) | −0.005 (2) |
C22 | 0.025 (4) | 0.024 (4) | 0.028 (3) | −0.003 (3) | 0.006 (3) | −0.003 (3) |
C23 | 0.021 (4) | 0.034 (4) | 0.026 (4) | 0.003 (3) | −0.004 (3) | −0.010 (3) |
C24 | 0.021 (4) | 0.034 (4) | 0.015 (3) | 0.012 (3) | −0.004 (3) | −0.004 (3) |
C25 | 0.021 (3) | 0.028 (4) | 0.013 (3) | 0.016 (3) | 0.000 (3) | −0.006 (3) |
C26 | 0.027 (4) | 0.027 (4) | 0.012 (3) | 0.012 (3) | 0.002 (3) | 0.002 (3) |
C27 | 0.035 (4) | 0.024 (3) | 0.020 (3) | 0.007 (3) | 0.014 (3) | 0.012 (3) |
C28 | 0.032 (4) | 0.015 (3) | 0.029 (3) | −0.004 (3) | 0.005 (3) | −0.003 (3) |
C29 | 0.019 (3) | 0.021 (3) | 0.016 (3) | 0.008 (3) | 0.001 (3) | −0.001 (3) |
C30 | 0.023 (3) | 0.013 (3) | 0.014 (3) | 0.008 (3) | 0.001 (2) | −0.005 (2) |
S29 | 0.0246 (9) | 0.0236 (9) | 0.0179 (8) | −0.0030 (7) | −0.0032 (7) | 0.0010 (7) |
C31 | 0.021 (3) | 0.022 (3) | 0.025 (3) | −0.001 (3) | −0.003 (3) | −0.002 (3) |
C32 | 0.031 (4) | 0.027 (4) | 0.034 (4) | −0.008 (3) | −0.007 (3) | −0.004 (3) |
Br1—C1 | 1.901 (6) | Br21—C21 | 1.897 (6) |
C1—C2 | 1.365 (9) | C21—C22 | 1.381 (9) |
C1—C10 | 1.419 (8) | C21—C30 | 1.433 (9) |
C2—C3 | 1.403 (10) | C22—C23 | 1.391 (9) |
C2—H2A | 0.9500 | C22—H22A | 0.9500 |
C3—C4 | 1.348 (9) | C23—C24 | 1.331 (10) |
C3—H3A | 0.9500 | C23—H23A | 0.9500 |
C4—C5 | 1.395 (9) | C24—C25 | 1.417 (10) |
C4—H4A | 0.9500 | C24—H24A | 0.9500 |
C5—C6 | 1.443 (9) | C25—C26 | 1.404 (9) |
C5—C10 | 1.446 (8) | C25—C30 | 1.441 (8) |
C6—C7 | 1.312 (9) | C26—C27 | 1.376 (10) |
C6—H6A | 0.9500 | C26—H26A | 0.9500 |
C7—C8 | 1.398 (8) | C27—C28 | 1.388 (10) |
C7—H7A | 0.9500 | C27—H27A | 0.9500 |
C8—C9 | 1.371 (9) | C28—C29 | 1.382 (9) |
C8—H8A | 0.9500 | C28—H28A | 0.9500 |
C9—C10 | 1.443 (8) | C29—C30 | 1.415 (9) |
C9—S9 | 1.770 (6) | C29—S29 | 1.778 (6) |
S9—C11 | 1.811 (7) | S29—C31 | 1.810 (7) |
C11—C12 | 1.530 (9) | C31—C32 | 1.516 (9) |
C11—H11A | 0.9900 | C31—H31A | 0.9900 |
C11—H11B | 0.9900 | C31—H31B | 0.9900 |
C12—H12A | 0.9800 | C32—H32A | 0.9800 |
C12—H12B | 0.9800 | C32—H32B | 0.9800 |
C12—H12C | 0.9800 | C32—H32C | 0.9800 |
C2—C1—C10 | 123.2 (6) | C22—C21—C30 | 123.1 (5) |
C2—C1—Br1 | 112.3 (5) | C22—C21—Br21 | 112.8 (5) |
C10—C1—Br1 | 124.5 (4) | C30—C21—Br21 | 124.1 (4) |
C1—C2—C3 | 120.8 (6) | C21—C22—C23 | 119.9 (6) |
C1—C2—H2A | 119.6 | C21—C22—H22A | 120.1 |
C3—C2—H2A | 119.6 | C23—C22—H22A | 120.1 |
C4—C3—C2 | 118.7 (6) | C24—C23—C22 | 120.4 (6) |
C4—C3—H3A | 120.6 | C24—C23—H23A | 119.8 |
C2—C3—H3A | 120.6 | C22—C23—H23A | 119.8 |
C3—C4—C5 | 122.0 (6) | C23—C24—C25 | 121.7 (6) |
C3—C4—H4A | 119.0 | C23—C24—H24A | 119.1 |
C5—C4—H4A | 119.0 | C25—C24—H24A | 119.1 |
C4—C5—C6 | 119.5 (5) | C26—C25—C24 | 118.9 (5) |
C4—C5—C10 | 121.1 (6) | C26—C25—C30 | 120.3 (6) |
C6—C5—C10 | 119.3 (6) | C24—C25—C30 | 120.8 (6) |
C7—C6—C5 | 120.6 (5) | C27—C26—C25 | 120.4 (5) |
C7—C6—H6A | 119.7 | C27—C26—H26A | 119.8 |
C5—C6—H6A | 119.7 | C25—C26—H26A | 119.8 |
C6—C7—C8 | 121.5 (6) | C26—C27—C28 | 119.4 (6) |
C6—C7—H7A | 119.3 | C26—C27—H27A | 120.3 |
C8—C7—H7A | 119.3 | C28—C27—H27A | 120.3 |
C9—C8—C7 | 122.1 (6) | C29—C28—C27 | 122.6 (6) |
C9—C8—H8A | 119.0 | C29—C28—H28A | 118.7 |
C7—C8—H8A | 119.0 | C27—C28—H28A | 118.7 |
C8—C9—C10 | 119.4 (5) | C28—C29—C30 | 119.6 (6) |
C8—C9—S9 | 119.4 (5) | C28—C29—S29 | 117.5 (5) |
C10—C9—S9 | 121.2 (4) | C30—C29—S29 | 122.9 (5) |
C1—C10—C9 | 128.8 (5) | C29—C30—C21 | 128.1 (5) |
C1—C10—C5 | 114.1 (5) | C29—C30—C25 | 117.7 (6) |
C9—C10—C5 | 117.1 (5) | C21—C30—C25 | 114.1 (5) |
C9—S9—C11 | 104.0 (3) | C29—S29—C31 | 104.7 (3) |
C12—C11—S9 | 105.7 (4) | C32—C31—S29 | 106.2 (5) |
C12—C11—H11A | 110.6 | C32—C31—H31A | 110.5 |
S9—C11—H11A | 110.6 | S29—C31—H31A | 110.5 |
C12—C11—H11B | 110.6 | C32—C31—H31B | 110.5 |
S9—C11—H11B | 110.6 | S29—C31—H31B | 110.5 |
H11A—C11—H11B | 108.7 | H31A—C31—H31B | 108.7 |
C11—C12—H12A | 109.5 | C31—C32—H32A | 109.5 |
C11—C12—H12B | 109.5 | C31—C32—H32B | 109.5 |
H12A—C12—H12B | 109.5 | H32A—C32—H32B | 109.5 |
C11—C12—H12C | 109.5 | C31—C32—H32C | 109.5 |
H12A—C12—H12C | 109.5 | H32A—C32—H32C | 109.5 |
H12B—C12—H12C | 109.5 | H32B—C32—H32C | 109.5 |
C10—C1—C2—C3 | 2.1 (10) | C30—C21—C22—C23 | 2.1 (9) |
Br1—C1—C2—C3 | −175.9 (5) | Br21—C21—C22—C23 | −179.0 (5) |
C1—C2—C3—C4 | −1.1 (10) | C21—C22—C23—C24 | −1.4 (9) |
C2—C3—C4—C5 | −0.2 (10) | C22—C23—C24—C25 | −0.2 (10) |
C3—C4—C5—C6 | −180.0 (6) | C23—C24—C25—C26 | −178.5 (6) |
C3—C4—C5—C10 | 0.6 (10) | C23—C24—C25—C30 | 1.2 (9) |
C4—C5—C6—C7 | 178.1 (6) | C24—C25—C26—C27 | 179.1 (6) |
C10—C5—C6—C7 | −2.5 (9) | C30—C25—C26—C27 | −0.6 (9) |
C5—C6—C7—C8 | 1.4 (9) | C25—C26—C27—C28 | 1.9 (9) |
C6—C7—C8—C9 | −0.1 (9) | C26—C27—C28—C29 | −1.6 (10) |
C7—C8—C9—C10 | 0.0 (9) | C27—C28—C29—C30 | −0.2 (9) |
C7—C8—C9—S9 | −179.4 (5) | C27—C28—C29—S29 | −179.6 (5) |
C2—C1—C10—C9 | 176.8 (6) | C28—C29—C30—C21 | −178.9 (6) |
Br1—C1—C10—C9 | −5.5 (9) | S29—C29—C30—C21 | 0.4 (9) |
C2—C1—C10—C5 | −1.5 (9) | C28—C29—C30—C25 | 1.6 (8) |
Br1—C1—C10—C5 | 176.2 (4) | S29—C29—C30—C25 | −179.2 (4) |
C8—C9—C10—C1 | −179.4 (6) | C22—C21—C30—C29 | 179.3 (6) |
S9—C9—C10—C1 | −0.1 (9) | Br21—C21—C30—C29 | 0.5 (9) |
C8—C9—C10—C5 | −1.0 (8) | C22—C21—C30—C25 | −1.1 (8) |
S9—C9—C10—C5 | 178.3 (4) | Br21—C21—C30—C25 | −179.9 (4) |
C4—C5—C10—C1 | 0.2 (8) | C26—C25—C30—C29 | −1.2 (8) |
C6—C5—C10—C1 | −179.2 (5) | C24—C25—C30—C29 | 179.1 (5) |
C4—C5—C10—C9 | −178.4 (6) | C26—C25—C30—C21 | 179.2 (5) |
C6—C5—C10—C9 | 2.2 (8) | C24—C25—C30—C21 | −0.5 (8) |
C8—C9—S9—C11 | 2.1 (6) | C28—C29—S29—C31 | −3.3 (6) |
C10—C9—S9—C11 | −177.2 (5) | C30—C29—S29—C31 | 177.4 (5) |
C9—S9—C11—C12 | 175.2 (4) | C29—S29—C31—C32 | −179.9 (4) |
Experimental details
Crystal data | |
Chemical formula | C12H11BrS |
Mr | 267.18 |
Crystal system, space group | Monoclinic, P21/c |
Temperature (K) | 125 |
a, b, c (Å) | 11.632 (4), 12.260 (4), 14.748 (4) |
β (°) | 91.692 (9) |
V (Å3) | 2102.2 (11) |
Z | 8 |
Radiation type | Mo Kα |
µ (mm−1) | 4.06 |
Crystal size (mm) | 0.25 × 0.20 × 0.20 |
Data collection | |
Diffractometer | Rigaku SCXmini CCD |
Absorption correction | Multi-scan (ABSCOR; Higashi, 1995) |
Tmin, Tmax | 0.396, 0.452 |
No. of measured, independent and observed [I > 2σ(I)] reflections | 6713, 3543, 2316 |
Rint | 0.079 |
(sin θ/λ)max (Å−1) | 0.595 |
Refinement | |
R[F2 > 2σ(F2)], wR(F2), S | 0.053, 0.106, 0.99 |
No. of reflections | 3543 |
No. of parameters | 254 |
H-atom treatment | H-atom parameters constrained |
Δρmax, Δρmin (e Å−3) | 0.46, −0.47 |
Computer programs: SCXmini (Rigaku, 2006), PROCESS-AUTO (Rigaku, 1998), SHELXS97 (Sheldrick, 1997), SHELXL97 (Sheldrick, 1997), CrystalStructure (Rigaku, 2006).
As part of a broader study into sterically crowded naphthalene derivatives (Aucott et al., 2004), here we report the structure of the title compound, (I), (Fig. 1), which contains two independent molecules. The intramolecular Br···SEt distances are 3.056 (2) and 3.050 (2) Å. The bromine and sulfur atoms show minor deviations above/below their attached ring planes: S9 = 0.022 (2) Å, S29 = -0.016 (2) Å, Br1 = -0.117 (1) Å and Br21 = -0.018 (1) Å. naphthalene planes
The molecules pack in a herringbone array with no significant π–π interactions. The shortest intermolecular S···S distance is 4.199 (2) Å and there is a weak intermolecular C—H···Br interaction [for C22–H22A···Br1: H···Br = 3.025 Å, C—H···Br = 167°].