organic compounds
4-(4-Bromostyryl)-1-methylpyridinium tosylate
aDepartment of Physics, Presidency College, Chennai 600 005, India, and bDepartment of Physics, CPCL Polytechnic College, Chennai 600 068, India
*Correspondence e-mail: chakkaravarthi_2005@yahoo.com, mohan66@hotmail.com
In the cation of the title compound, C14H13BrN+·C7H7O3S−, the dihedral angle between the benzene and pyridine rings is 8.34 (11)°. The Br atom is disordered over two positions with site occupancies of 0.74 (2) and 0.26 (2). The molecular structure is stabilized by a weak intramolecular C—H⋯O interactions. The exhibits weak C—H⋯O and π–π [centroid–centroid distance = 3.7466 (17) Å] interactions, forming a three dimensional network.
Related literature
For molecular compounds with non-linear optical properties, see: Bosshard et al. (1995); Nalwa & Miyata (1997). For similar structures, see: Krishnakumar et al. (2012); Okada et al. (1990); Sivakumar et al. (2012).
Experimental
Crystal data
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Data collection: APEX2 (Bruker, 2004); cell SAINT (Bruker, 2004); data reduction: SAINT; program(s) used to solve structure: SHELXS97 (Sheldrick, 2008); program(s) used to refine structure: SHELXL97 (Sheldrick, 2008); molecular graphics: PLATON (Spek, 2009); software used to prepare material for publication: SHELXL97.
Supporting information
https://doi.org/10.1107/S1600536813009227/bt6900sup1.cif
contains datablocks global, I. DOI:Structure factors: contains datablock I. DOI: https://doi.org/10.1107/S1600536813009227/bt6900Isup2.hkl
Supporting information file. DOI: https://doi.org/10.1107/S1600536813009227/bt6900Isup3.cml
The title compound was synthesized by the condensation of 4-methyl-N-methyl pyridinium tosylate, which was prepared from 4-picoline (4.65g, 5 mmol) and methyl p-toluenesulfonate (9.31g, 5 mmol), and 4-bromobenzaldehyde (9.24 g, 5 mmol) in the presence of piperidine. The single crystals suitable for X-ray diffraction were grown by slow evaporation method in room temperature.
H atoms were positioned geometrically and refined using a riding model with C-H = 0.93 Å and Uiso(H) = 1.2Ueq(C) for aromatic C-H, C-H = 0.96 Å and Uiso(H) = 1.5Ueq(C) for CH3. The components of the anisotropic displacement parameters in the direction of C4 and C7 were restrained to be equal within an effective deviation of 0.001 using DELU command in SHELXL (Sheldrick, 2008). The disorder of the bromine ligand suggests also disorder of the aromatic ring to which it is attached, but no split model for this ring could be found.
In continuation of our studies of molecular compounds with non linear optical properties which are used in optoelectronic and photonic devices (Bosshard et al., 1995; Nalwa & Miyata, 1997), we herewith report the
of the title compound (I) (Fig. 1).The
of the title compound consists of C14H13BrN+ cations and C7H7O3S- anios. The geometric parameters of the title compound are agree well with those of reported structures (Krishnakumar et al., 2012; Sivakumar et al., 2012; Okada et al., 1990). In the cation, the bromine atom is disordered over two positions, with the site occupancies of 0.74 (2) and 0.26 (2). The cation is planar [torision angle C4-C7=C8-C9 = 178.1 (3)°] about the double bond between the two rings in the cation. The dihedral angle between the benzene ring and pyridinium ring in the cation is 8.34 (11)°.The molecular structure is stabilized by weak intramolecular C-H···O interactions. In the π···π [Cg1···Cg2 (x,-1/2-y,1/2+z) = 3.7466 (17)Å and Cg2···Cg1 (x,1+y,z) distance = 3.7468 (17)Å; Cg1 and Cg2 are the centroids of the rings (C9/C10/C11/N1/C12/C13) and (C1-C6), respectively] interactions.
adjacent anions and cations are linked by weak C—H···O (Table 1 & Fig.2) andFor molecular compounds with non-linear optical properties, see: Bosshard et al. (1995); Nalwa & Miyata (1997). For similar structures, see: Krishnakumar et al. (2012); Okada et al. (1990); Sivakumar et al. (2012).
Data collection: APEX2 (Bruker, 2004); cell
SAINT (Bruker, 2004); data reduction: SAINT (Bruker, 2004); program(s) used to solve structure: SHELXS97 (Sheldrick, 2008); program(s) used to refine structure: SHELXL97 (Sheldrick, 2008); molecular graphics: PLATON (Spek, 2009); software used to prepare material for publication: SHELXL97 (Sheldrick, 2008).C14H13BrN+·C7H7O3S− | F(000) = 912 |
Mr = 446.35 | Dx = 1.509 Mg m−3 |
Monoclinic, P21/c | Mo Kα radiation, λ = 0.71073 Å |
Hall symbol: -P 2ybc | Cell parameters from 4367 reflections |
a = 9.0502 (2) Å | θ = 2.4–24.1° |
b = 6.4201 (1) Å | µ = 2.22 mm−1 |
c = 33.9280 (7) Å | T = 295 K |
β = 94.469 (1)° | Block, orange |
V = 1965.33 (7) Å3 | 0.28 × 0.22 × 0.20 mm |
Z = 4 |
Bruker APEXII CCD diffractometer | 5596 independent reflections |
Radiation source: fine-focus sealed tube | 3012 reflections with I > 2σ(I) |
Graphite monochromator | Rint = 0.044 |
ω and φ scan | θmax = 29.8°, θmin = 2.4° |
Absorption correction: multi-scan (SADABS; Sheldrick, 1996) | h = −12→12 |
Tmin = 0.575, Tmax = 0.665 | k = −8→8 |
22764 measured reflections | l = −47→47 |
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)] = 0.049 | Hydrogen site location: inferred from neighbouring sites |
wR(F2) = 0.130 | H-atom parameters constrained |
S = 1.01 | w = 1/[σ2(Fo2) + (0.0525P)2 + 0.7449P] where P = (Fo2 + 2Fc2)/3 |
5596 reflections | (Δ/σ)max < 0.001 |
256 parameters | Δρmax = 0.34 e Å−3 |
1 restraint | Δρmin = −0.30 e Å−3 |
C14H13BrN+·C7H7O3S− | V = 1965.33 (7) Å3 |
Mr = 446.35 | Z = 4 |
Monoclinic, P21/c | Mo Kα radiation |
a = 9.0502 (2) Å | µ = 2.22 mm−1 |
b = 6.4201 (1) Å | T = 295 K |
c = 33.9280 (7) Å | 0.28 × 0.22 × 0.20 mm |
β = 94.469 (1)° |
Bruker APEXII CCD diffractometer | 5596 independent reflections |
Absorption correction: multi-scan (SADABS; Sheldrick, 1996) | 3012 reflections with I > 2σ(I) |
Tmin = 0.575, Tmax = 0.665 | Rint = 0.044 |
22764 measured reflections |
R[F2 > 2σ(F2)] = 0.049 | 1 restraint |
wR(F2) = 0.130 | H-atom parameters constrained |
S = 1.01 | Δρmax = 0.34 e Å−3 |
5596 reflections | Δρmin = −0.30 e Å−3 |
256 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 | Occ. (<1) | |
Br1 | 0.6169 (3) | 0.7372 (4) | 0.03376 (7) | 0.0820 (5) | 0.74 (2) |
Br1A | 0.661 (3) | 0.7520 (14) | 0.0342 (2) | 0.114 (3) | 0.26 (2) |
S1 | 1.20686 (7) | 0.07504 (10) | 0.18347 (2) | 0.04224 (18) | |
O1 | 1.07764 (19) | −0.0120 (3) | 0.19985 (6) | 0.0565 (5) | |
O2 | 1.34369 (19) | −0.0096 (3) | 0.20147 (6) | 0.0577 (5) | |
O3 | 1.2060 (3) | 0.3000 (3) | 0.18168 (7) | 0.0682 (6) | |
N1 | 0.7301 (2) | −0.7025 (3) | 0.21855 (6) | 0.0415 (5) | |
C1 | 0.6600 (4) | 0.5062 (5) | 0.06660 (8) | 0.0565 (8) | |
C2 | 0.7976 (4) | 0.4692 (5) | 0.08326 (10) | 0.0673 (9) | |
H2 | 0.8749 | 0.5597 | 0.0788 | 0.081* | |
C3 | 0.8230 (3) | 0.2970 (5) | 0.10686 (10) | 0.0627 (8) | |
H3 | 0.9181 | 0.2728 | 0.1183 | 0.075* | |
C4 | 0.7112 (3) | 0.1586 (4) | 0.11408 (8) | 0.0473 (6) | |
C5 | 0.5724 (3) | 0.2032 (5) | 0.09664 (11) | 0.0670 (9) | |
H5 | 0.4941 | 0.1143 | 0.1009 | 0.080* | |
C6 | 0.5463 (4) | 0.3750 (5) | 0.07309 (11) | 0.0714 (9) | |
H6 | 0.4514 | 0.4017 | 0.0616 | 0.086* | |
C7 | 0.7449 (3) | −0.0240 (4) | 0.13914 (8) | 0.0504 (7) | |
H7 | 0.8441 | −0.0491 | 0.1469 | 0.061* | |
C8 | 0.6481 (3) | −0.1545 (5) | 0.15144 (9) | 0.0521 (7) | |
H8 | 0.5487 | −0.1269 | 0.1443 | 0.063* | |
C9 | 0.6818 (3) | −0.3409 (4) | 0.17554 (8) | 0.0455 (6) | |
C10 | 0.8234 (3) | −0.4050 (4) | 0.18908 (8) | 0.0493 (7) | |
H10 | 0.9046 | −0.3240 | 0.1837 | 0.059* | |
C11 | 0.8453 (3) | −0.5847 (4) | 0.21009 (8) | 0.0470 (6) | |
H11 | 0.9411 | −0.6258 | 0.2186 | 0.056* | |
C12 | 0.5923 (3) | −0.6440 (5) | 0.20655 (9) | 0.0512 (7) | |
H12 | 0.5127 | −0.7259 | 0.2128 | 0.061* | |
C13 | 0.5670 (3) | −0.4672 (4) | 0.18542 (9) | 0.0530 (7) | |
H13 | 0.4700 | −0.4300 | 0.1774 | 0.064* | |
C14 | 0.7558 (3) | −0.8921 (4) | 0.24243 (9) | 0.0569 (7) | |
H14A | 0.7714 | −0.8550 | 0.2698 | 0.085* | |
H14B | 0.8416 | −0.9633 | 0.2343 | 0.085* | |
H14C | 0.6709 | −0.9818 | 0.2387 | 0.085* | |
C15 | 1.1957 (2) | −0.0120 (4) | 0.13392 (7) | 0.0364 (5) | |
C16 | 1.1865 (3) | −0.2225 (4) | 0.12499 (9) | 0.0510 (7) | |
H16 | 1.1866 | −0.3207 | 0.1451 | 0.061* | |
C17 | 1.1773 (4) | −0.2852 (4) | 0.08614 (10) | 0.0608 (8) | |
H17 | 1.1720 | −0.4269 | 0.0805 | 0.073* | |
C18 | 1.1756 (3) | −0.1453 (5) | 0.05514 (9) | 0.0552 (7) | |
C19 | 1.1841 (3) | 0.0620 (4) | 0.06475 (9) | 0.0581 (8) | |
H19 | 1.1825 | 0.1602 | 0.0446 | 0.070* | |
C20 | 1.1949 (3) | 0.1286 (4) | 0.10329 (9) | 0.0506 (7) | |
H20 | 1.2017 | 0.2703 | 0.1088 | 0.061* | |
C21 | 1.1620 (5) | −0.2217 (6) | 0.01292 (11) | 0.0876 (12) | |
H21A | 1.2117 | −0.1265 | −0.0034 | 0.131* | |
H21B | 1.0592 | −0.2301 | 0.0037 | 0.131* | |
H21C | 1.2065 | −0.3571 | 0.0117 | 0.131* |
U11 | U22 | U33 | U12 | U13 | U23 | |
Br1 | 0.1112 (16) | 0.0651 (6) | 0.0679 (8) | −0.0001 (6) | −0.0054 (9) | 0.0221 (5) |
Br1A | 0.221 (9) | 0.0675 (15) | 0.056 (2) | −0.014 (4) | 0.035 (3) | 0.0058 (14) |
S1 | 0.0401 (3) | 0.0448 (3) | 0.0418 (4) | −0.0058 (3) | 0.0029 (3) | 0.0025 (3) |
O1 | 0.0419 (10) | 0.0793 (14) | 0.0494 (12) | −0.0104 (9) | 0.0113 (9) | 0.0024 (10) |
O2 | 0.0403 (10) | 0.0760 (13) | 0.0552 (13) | −0.0059 (9) | −0.0076 (9) | 0.0081 (11) |
O3 | 0.0979 (16) | 0.0441 (11) | 0.0628 (15) | −0.0029 (11) | 0.0076 (12) | −0.0069 (10) |
N1 | 0.0467 (13) | 0.0424 (11) | 0.0358 (12) | −0.0019 (9) | 0.0053 (10) | −0.0073 (9) |
C1 | 0.081 (2) | 0.0525 (16) | 0.0361 (16) | 0.0023 (15) | 0.0046 (15) | −0.0002 (13) |
C2 | 0.064 (2) | 0.070 (2) | 0.069 (2) | −0.0132 (16) | 0.0120 (17) | 0.0067 (17) |
C3 | 0.0457 (17) | 0.076 (2) | 0.066 (2) | 0.0034 (15) | 0.0024 (15) | 0.0074 (17) |
C4 | 0.0510 (16) | 0.0518 (14) | 0.0388 (15) | 0.0038 (12) | 0.0018 (12) | −0.0070 (11) |
C5 | 0.0480 (17) | 0.073 (2) | 0.079 (2) | −0.0073 (15) | −0.0014 (16) | 0.0167 (18) |
C6 | 0.061 (2) | 0.076 (2) | 0.075 (2) | 0.0052 (17) | −0.0104 (17) | 0.0167 (19) |
C7 | 0.0467 (15) | 0.0560 (15) | 0.0480 (17) | 0.0027 (13) | −0.0005 (13) | −0.0029 (12) |
C8 | 0.0437 (15) | 0.0581 (16) | 0.0536 (18) | 0.0031 (13) | −0.0022 (13) | −0.0059 (14) |
C9 | 0.0499 (16) | 0.0482 (14) | 0.0382 (15) | −0.0011 (12) | 0.0026 (12) | −0.0095 (12) |
C10 | 0.0436 (15) | 0.0543 (15) | 0.0497 (17) | −0.0118 (12) | 0.0026 (12) | 0.0000 (13) |
C11 | 0.0361 (13) | 0.0595 (16) | 0.0449 (16) | −0.0010 (12) | −0.0010 (11) | −0.0060 (13) |
C12 | 0.0409 (15) | 0.0594 (17) | 0.0534 (18) | −0.0091 (12) | 0.0052 (13) | −0.0055 (14) |
C13 | 0.0393 (15) | 0.0634 (18) | 0.0561 (19) | 0.0012 (13) | 0.0025 (13) | 0.0013 (14) |
C14 | 0.076 (2) | 0.0468 (15) | 0.0483 (18) | 0.0000 (14) | 0.0070 (15) | 0.0009 (13) |
C15 | 0.0309 (12) | 0.0393 (12) | 0.0389 (14) | 0.0003 (9) | 0.0024 (10) | 0.0049 (10) |
C16 | 0.0661 (18) | 0.0366 (13) | 0.0499 (18) | 0.0002 (12) | 0.0017 (14) | 0.0081 (12) |
C17 | 0.082 (2) | 0.0402 (15) | 0.060 (2) | −0.0009 (14) | 0.0030 (17) | −0.0045 (14) |
C18 | 0.0548 (17) | 0.0639 (18) | 0.0465 (18) | 0.0039 (14) | 0.0019 (14) | −0.0039 (15) |
C19 | 0.077 (2) | 0.0534 (16) | 0.0438 (18) | −0.0008 (15) | 0.0046 (15) | 0.0125 (14) |
C20 | 0.0622 (17) | 0.0384 (13) | 0.0515 (18) | −0.0031 (12) | 0.0069 (14) | 0.0067 (12) |
C21 | 0.111 (3) | 0.097 (3) | 0.054 (2) | 0.002 (2) | 0.003 (2) | −0.016 (2) |
Br1—C1 | 1.878 (4) | C9—C10 | 1.390 (4) |
Br1A—C1 | 1.924 (9) | C10—C11 | 1.362 (4) |
S1—O2 | 1.4435 (19) | C10—H10 | 0.9300 |
S1—O3 | 1.445 (2) | C11—H11 | 0.9300 |
S1—O1 | 1.4458 (19) | C12—C13 | 1.352 (4) |
S1—C15 | 1.767 (3) | C12—H12 | 0.9300 |
N1—C12 | 1.335 (3) | C13—H13 | 0.9300 |
N1—C11 | 1.337 (3) | C14—H14A | 0.9600 |
N1—C14 | 1.471 (3) | C14—H14B | 0.9600 |
C1—C2 | 1.348 (4) | C14—H14C | 0.9600 |
C1—C6 | 1.361 (4) | C15—C20 | 1.376 (4) |
C2—C3 | 1.374 (4) | C15—C16 | 1.387 (3) |
C2—H2 | 0.9300 | C16—C17 | 1.375 (4) |
C3—C4 | 1.383 (4) | C16—H16 | 0.9300 |
C3—H3 | 0.9300 | C17—C18 | 1.382 (4) |
C4—C5 | 1.376 (4) | C17—H17 | 0.9300 |
C4—C7 | 1.466 (4) | C18—C19 | 1.371 (4) |
C5—C6 | 1.372 (4) | C18—C21 | 1.510 (5) |
C5—H5 | 0.9300 | C19—C20 | 1.372 (4) |
C6—H6 | 0.9300 | C19—H19 | 0.9300 |
C7—C8 | 1.304 (4) | C20—H20 | 0.9300 |
C7—H7 | 0.9300 | C21—H21A | 0.9600 |
C8—C9 | 1.468 (4) | C21—H21B | 0.9600 |
C8—H8 | 0.9300 | C21—H21C | 0.9600 |
C9—C13 | 1.380 (4) | ||
O2—S1—O3 | 113.31 (13) | C9—C10—H10 | 119.5 |
O2—S1—O1 | 112.63 (12) | N1—C11—C10 | 120.5 (2) |
O3—S1—O1 | 113.60 (13) | N1—C11—H11 | 119.8 |
O2—S1—C15 | 105.49 (12) | C10—C11—H11 | 119.8 |
O3—S1—C15 | 106.03 (12) | N1—C12—C13 | 120.9 (3) |
O1—S1—C15 | 104.81 (11) | N1—C12—H12 | 119.6 |
C12—N1—C11 | 120.1 (2) | C13—C12—H12 | 119.6 |
C12—N1—C14 | 120.3 (2) | C12—C13—C9 | 121.5 (3) |
C11—N1—C14 | 119.6 (2) | C12—C13—H13 | 119.2 |
C2—C1—C6 | 120.6 (3) | C9—C13—H13 | 119.2 |
C2—C1—Br1 | 122.0 (3) | N1—C14—H14A | 109.5 |
C6—C1—Br1 | 117.4 (3) | N1—C14—H14B | 109.5 |
C2—C1—Br1A | 109.9 (10) | H14A—C14—H14B | 109.5 |
C6—C1—Br1A | 129.5 (10) | N1—C14—H14C | 109.5 |
C1—C2—C3 | 119.5 (3) | H14A—C14—H14C | 109.5 |
C1—C2—H2 | 120.2 | H14B—C14—H14C | 109.5 |
C3—C2—H2 | 120.2 | C20—C15—C16 | 118.5 (3) |
C2—C3—C4 | 122.0 (3) | C20—C15—S1 | 120.5 (2) |
C2—C3—H3 | 119.0 | C16—C15—S1 | 120.9 (2) |
C4—C3—H3 | 119.0 | C17—C16—C15 | 119.5 (3) |
C5—C4—C3 | 116.5 (3) | C17—C16—H16 | 120.2 |
C5—C4—C7 | 123.9 (3) | C15—C16—H16 | 120.2 |
C3—C4—C7 | 119.6 (2) | C16—C17—C18 | 122.4 (3) |
C6—C5—C4 | 121.9 (3) | C16—C17—H17 | 118.8 |
C6—C5—H5 | 119.1 | C18—C17—H17 | 118.8 |
C4—C5—H5 | 119.1 | C19—C18—C17 | 116.9 (3) |
C1—C6—C5 | 119.6 (3) | C19—C18—C21 | 122.7 (3) |
C1—C6—H6 | 120.2 | C17—C18—C21 | 120.4 (3) |
C5—C6—H6 | 120.2 | C18—C19—C20 | 121.8 (3) |
C8—C7—C4 | 125.7 (3) | C18—C19—H19 | 119.1 |
C8—C7—H7 | 117.1 | C20—C19—H19 | 119.1 |
C4—C7—H7 | 117.1 | C19—C20—C15 | 120.8 (3) |
C7—C8—C9 | 125.9 (3) | C19—C20—H20 | 119.6 |
C7—C8—H8 | 117.1 | C15—C20—H20 | 119.6 |
C9—C8—H8 | 117.1 | C18—C21—H21A | 109.5 |
C13—C9—C10 | 116.0 (3) | C18—C21—H21B | 109.5 |
C13—C9—C8 | 119.2 (2) | H21A—C21—H21B | 109.5 |
C10—C9—C8 | 124.9 (2) | C18—C21—H21C | 109.5 |
C11—C10—C9 | 121.1 (2) | H21A—C21—H21C | 109.5 |
C11—C10—H10 | 119.5 | H21B—C21—H21C | 109.5 |
C6—C1—C2—C3 | 0.2 (5) | C11—N1—C12—C13 | 0.7 (4) |
Br1—C1—C2—C3 | −179.6 (3) | C14—N1—C12—C13 | 178.3 (3) |
Br1A—C1—C2—C3 | −178.3 (3) | N1—C12—C13—C9 | −0.1 (5) |
C1—C2—C3—C4 | 0.2 (5) | C10—C9—C13—C12 | −0.9 (4) |
C2—C3—C4—C5 | −0.5 (5) | C8—C9—C13—C12 | 178.0 (3) |
C2—C3—C4—C7 | 179.3 (3) | O2—S1—C15—C20 | −117.6 (2) |
C3—C4—C5—C6 | 0.4 (5) | O3—S1—C15—C20 | 2.8 (2) |
C7—C4—C5—C6 | −179.4 (3) | O1—S1—C15—C20 | 123.3 (2) |
C2—C1—C6—C5 | −0.3 (5) | O2—S1—C15—C16 | 62.9 (2) |
Br1—C1—C6—C5 | 179.5 (3) | O3—S1—C15—C16 | −176.7 (2) |
Br1A—C1—C6—C5 | 177.8 (4) | O1—S1—C15—C16 | −56.2 (2) |
C4—C5—C6—C1 | 0.0 (6) | C20—C15—C16—C17 | 0.2 (4) |
C5—C4—C7—C8 | −7.5 (5) | S1—C15—C16—C17 | 179.7 (2) |
C3—C4—C7—C8 | 172.8 (3) | C15—C16—C17—C18 | −0.5 (5) |
C4—C7—C8—C9 | 178.1 (3) | C16—C17—C18—C19 | 0.2 (5) |
C7—C8—C9—C13 | −178.3 (3) | C16—C17—C18—C21 | −178.7 (3) |
C7—C8—C9—C10 | 0.5 (5) | C17—C18—C19—C20 | 0.5 (5) |
C13—C9—C10—C11 | 1.3 (4) | C21—C18—C19—C20 | 179.3 (3) |
C8—C9—C10—C11 | −177.5 (3) | C18—C19—C20—C15 | −0.8 (5) |
C12—N1—C11—C10 | −0.3 (4) | C16—C15—C20—C19 | 0.5 (4) |
C14—N1—C11—C10 | −177.9 (3) | S1—C15—C20—C19 | −179.1 (2) |
C9—C10—C11—N1 | −0.8 (4) |
D—H···A | D—H | H···A | D···A | D—H···A |
C10—H10···O1 | 0.93 | 2.57 | 3.415 (3) | 151 |
C20—H20···O3 | 0.93 | 2.48 | 2.873 (4) | 106 |
C12—H12···O2i | 0.93 | 2.39 | 3.247 (3) | 153 |
C14—H14B···O1ii | 0.96 | 2.53 | 3.438 (4) | 157 |
Symmetry codes: (i) x−1, y−1, z; (ii) x, y−1, z. |
Experimental details
Crystal data | |
Chemical formula | C14H13BrN+·C7H7O3S− |
Mr | 446.35 |
Crystal system, space group | Monoclinic, P21/c |
Temperature (K) | 295 |
a, b, c (Å) | 9.0502 (2), 6.4201 (1), 33.9280 (7) |
β (°) | 94.469 (1) |
V (Å3) | 1965.33 (7) |
Z | 4 |
Radiation type | Mo Kα |
µ (mm−1) | 2.22 |
Crystal size (mm) | 0.28 × 0.22 × 0.20 |
Data collection | |
Diffractometer | Bruker APEXII CCD |
Absorption correction | Multi-scan (SADABS; Sheldrick, 1996) |
Tmin, Tmax | 0.575, 0.665 |
No. of measured, independent and observed [I > 2σ(I)] reflections | 22764, 5596, 3012 |
Rint | 0.044 |
(sin θ/λ)max (Å−1) | 0.700 |
Refinement | |
R[F2 > 2σ(F2)], wR(F2), S | 0.049, 0.130, 1.01 |
No. of reflections | 5596 |
No. of parameters | 256 |
No. of restraints | 1 |
H-atom treatment | H-atom parameters constrained |
Δρmax, Δρmin (e Å−3) | 0.34, −0.30 |
Computer programs: APEX2 (Bruker, 2004), SAINT (Bruker, 2004), SHELXS97 (Sheldrick, 2008), SHELXL97 (Sheldrick, 2008), PLATON (Spek, 2009).
D—H···A | D—H | H···A | D···A | D—H···A |
C10—H10···O1 | 0.93 | 2.57 | 3.415 (3) | 151 |
C12—H12···O2i | 0.93 | 2.39 | 3.247 (3) | 153 |
C14—H14B···O1ii | 0.96 | 2.53 | 3.438 (4) | 157 |
Symmetry codes: (i) x−1, y−1, z; (ii) x, y−1, z. |
Acknowledgements
MK would like to thank the Council of Scientific and Industrial Research, New Delhi, India, for providing financial support [project No. 03 (1200)/11/EMR-II)].
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.
In continuation of our studies of molecular compounds with non linear optical properties which are used in optoelectronic and photonic devices (Bosshard et al., 1995; Nalwa & Miyata, 1997), we herewith report the crystal structure of the title compound (I) (Fig. 1).
The asymmetric unit of the title compound consists of C14H13BrN+ cations and C7H7O3S- anios. The geometric parameters of the title compound are agree well with those of reported structures (Krishnakumar et al., 2012; Sivakumar et al., 2012; Okada et al., 1990). In the cation, the bromine atom is disordered over two positions, with the site occupancies of 0.74 (2) and 0.26 (2). The cation is planar [torision angle C4-C7=C8-C9 = 178.1 (3)°] about the double bond between the two rings in the cation. The dihedral angle between the benzene ring and pyridinium ring in the cation is 8.34 (11)°.
The molecular structure is stabilized by weak intramolecular C-H···O interactions. In the crystal structure, adjacent anions and cations are linked by weak C—H···O (Table 1 & Fig.2) and π···π [Cg1···Cg2 (x,-1/2-y,1/2+z) = 3.7466 (17)Å and Cg2···Cg1 (x,1+y,z) distance = 3.7468 (17)Å; Cg1 and Cg2 are the centroids of the rings (C9/C10/C11/N1/C12/C13) and (C1-C6), respectively] interactions.