organic compounds
Pyrimethaminium 2-{[4-(trifluoromethyl)phenyl]sulfanyl}benzoate dimethyl sulfoxide monosolvate
aDepartment of Studies in Chemistry, University of Mysore, Manasagangotri, Mysore 570 006, India, and bDepartment of Chemistry, Keene State College, 229 Main Street, Keene, NH 03435-2001, USA
*Correspondence e-mail: jjasinski@keene.edu
In the cation of the title solvated molecular salt, C12H14ClN4+·C14H8F3O2S−·C2H6OS [systematic name of the cation: 2,4-diamino-5-(4-chlorophenyl)-6-ethylpyrimidin-1-ium], the dihedral angle between the planes of the pyrimidinium and 4-chlorophenyl rings is 77.2 (5)°. In the anion, the planes of the benzene rings are twisted with respect to each other by 71.5 (5)°. Disorder was modelled for the dimethyl sulfoxide solvent molecule over two set of sites in a 0.7487 (13):0.2513 (13) ratio. In the crystal, the cations are linked by inversion-generated pairs of N—H⋯N hydrogen bonds, with an R22(8) graph-set motif. The cation donates two N—H⋯O hydrogen bonds to the anion, also generating an R22(8) loop. These interactions, along with cation–solvent N—H⋯O hydrogen bonds, and cation–anion C—H⋯F, solvent–anion C—H⋯O and C—H⋯F interactions, result in a three-dimensional network.
CCDC reference: 1001667
Related literature
For background to pyrimethamine, see: Kraut & Matthews (1987); Zuccotto et al. (1998). For supramolecular synthons, see: Desiraju (1995). For related structures, see: Balasubramani et al. (2005); Devi et al. (2006, 2007); Ebenezer & Muthiah (2010); Subashini et al. (2007); Thanigaimani et al. (2009); Yamuna et al. (2013).
Experimental
Crystal data
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Data collection: CrysAlis PRO (Agilent, 2012); cell CrysAlis PRO; data reduction: CrysAlis RED (Agilent, 2012); program(s) used to solve structure: SUPERFLIP (Palatinus & Chapuis, 2007); program(s) used to refine structure: SHELXL2012 (Sheldrick, 2008); molecular graphics: OLEX2 (Dolomanov et al., 2009); software used to prepare material for publication: OLEX2.
Supporting information
CCDC reference: 1001667
10.1107/S1600536814010411/hb7223sup1.cif
contains datablock I. DOI:Structure factors: contains datablock I. DOI: 10.1107/S1600536814010411/hb7223Isup2.hkl
Supporting information file. DOI: 10.1107/S1600536814010411/hb7223Isup3.cml
Pyrimethamine (0.5 g, 0.2010 mmol) and 2-(4-trifluoromethylphenyl sulfanyl)benzoic acid(0.599 g, 0.2010 mmol) were dissolved in 10 ml of hot dimethyl sulphoxide solution and stirred for 20 minutes and kept aside for slow evaporation. After few days, irregular colourless chunks of the title compound were developed (m.p: 383–388 K).
All of the H atoms were placed in their calculated positions and then refined using the riding model with Atom—H lengths of 0.95Å (CH); 0.99Å (CH2); 0.98Å (CH3) or 0.88Å (NH, NH2). Isotropic displacement parameters for these atoms were set to 1.2 (CH, CH2, NH, NH2) or 1.5 (CH3) times Ueq of the parent atom. Idealised Me groups refined as rotating groups. Disorder was modelled for the S1S, O1S, C1S and C2S atoms of the dimethyl sulfoxide solvent molecule over two sites in a 0.7487 (13):0.2513 (13) ratio.
Data collection: CrysAlis PRO (Agilent, 2012); cell
CrysAlis PRO (Agilent, 2012); data reduction: CrysAlis RED (Agilent, 2012); program(s) used to solve structure: SUPERFLIP (Palatinus & Chapuis, 2007); program(s) used to refine structure: SHELXL2012 (Sheldrick, 2008); molecular graphics: OLEX2 (Dolomanov et al., 2009); software used to prepare material for publication: OLEX2 (Dolomanov et al., 2009).Fig. 1. ORTEP drawing of (I) showing 30% probability displacement ellipsoids. Dashed lines indicate N—H···O hydrogen bonds within the asymmetric unit forming R22(8) graph-set ring motifs. | |
Fig. 2. Molecular packing for (I) viewed along the c axis. Dashed lines indicate cation-anion N—H···O hydrogen bonds (forming R22(8) graph-set ring motifs) along with cation-cation N—H···N hydrogen bonds, cation-solvate N—H···O hydrogen bonds and weak cation-anion C—H···F, and solvate-anion C—H···O, C—H···F interactions. |
C12H14ClN4+·C14H8F3O2S−·C2H6OS | F(000) = 1296 |
Mr = 625.11 | Dx = 1.433 Mg m−3 |
Monoclinic, P21/c | Cu Kα radiation, λ = 1.54184 Å |
a = 12.7422 (3) Å | Cell parameters from 8424 reflections |
b = 22.2773 (3) Å | θ = 4.0–71.5° |
c = 11.1761 (3) Å | µ = 3.01 mm−1 |
β = 114.014 (3)° | T = 173 K |
V = 2897.88 (12) Å3 | Irregular, colourless |
Z = 4 | 0.36 × 0.18 × 0.06 mm |
Agilent Eos Gemini diffractometer | 5571 independent reflections |
Radiation source: Enhance (Cu) X-ray Source | 4889 reflections with I > 2σ(I) |
Detector resolution: 16.0416 pixels mm-1 | Rint = 0.046 |
ω scans | θmax = 71.4°, θmin = 3.8° |
Absorption correction: multi-scan (CrysAlis RED; Agilent, 2012) | h = −15→15 |
Tmin = 0.374, Tmax = 1.000 | k = −27→27 |
19462 measured reflections | l = −8→13 |
Refinement on F2 | Hydrogen site location: inferred from neighbouring sites |
Least-squares matrix: full | H-atom parameters constrained |
R[F2 > 2σ(F2)] = 0.049 | w = 1/[σ2(Fo2) + (0.0872P)2 + 1.2456P] where P = (Fo2 + 2Fc2)/3 |
wR(F2) = 0.138 | (Δ/σ)max < 0.001 |
S = 1.02 | Δρmax = 0.72 e Å−3 |
5571 reflections | Δρmin = −0.41 e Å−3 |
389 parameters | Extinction correction: SHELXL2012 (Sheldrick, 2008), Fc*=kFc[1+0.001xFc2λ3/sin(2θ)]-1/4 |
54 restraints | Extinction coefficient: 0.00062 (19) |
Primary atom site location: structure-invariant direct methods |
C12H14ClN4+·C14H8F3O2S−·C2H6OS | V = 2897.88 (12) Å3 |
Mr = 625.11 | Z = 4 |
Monoclinic, P21/c | Cu Kα radiation |
a = 12.7422 (3) Å | µ = 3.01 mm−1 |
b = 22.2773 (3) Å | T = 173 K |
c = 11.1761 (3) Å | 0.36 × 0.18 × 0.06 mm |
β = 114.014 (3)° |
Agilent Eos Gemini diffractometer | 5571 independent reflections |
Absorption correction: multi-scan (CrysAlis RED; Agilent, 2012) | 4889 reflections with I > 2σ(I) |
Tmin = 0.374, Tmax = 1.000 | Rint = 0.046 |
19462 measured reflections |
R[F2 > 2σ(F2)] = 0.049 | 54 restraints |
wR(F2) = 0.138 | H-atom parameters constrained |
S = 1.02 | Δρmax = 0.72 e Å−3 |
5571 reflections | Δρmin = −0.41 e Å−3 |
389 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. |
x | y | z | Uiso*/Ueq | Occ. (<1) | |
S1 | 0.59857 (4) | 0.47670 (2) | 0.25721 (5) | 0.02905 (16) | |
F1 | 0.88133 (16) | 0.63579 (7) | −0.0149 (2) | 0.0652 (5) | |
F2 | 0.85792 (17) | 0.55628 (11) | −0.13276 (16) | 0.0758 (6) | |
F3 | 1.00185 (12) | 0.56365 (7) | 0.05033 (16) | 0.0488 (4) | |
O1 | 0.45576 (13) | 0.44517 (6) | 0.36254 (16) | 0.0343 (3) | |
O2 | 0.40640 (15) | 0.35336 (7) | 0.40052 (19) | 0.0431 (4) | |
C13 | 0.45497 (17) | 0.38898 (9) | 0.3526 (2) | 0.0304 (4) | |
C14 | 0.51534 (17) | 0.36331 (9) | 0.2722 (2) | 0.0311 (4) | |
C14A | 0.8891 (2) | 0.57575 (11) | −0.0105 (2) | 0.0410 (5) | |
C15 | 0.57766 (16) | 0.39873 (9) | 0.2191 (2) | 0.0280 (4) | |
C16 | 0.61951 (18) | 0.37158 (10) | 0.1337 (2) | 0.0356 (5) | |
H16 | 0.6614 | 0.3949 | 0.0969 | 0.043* | |
C17 | 0.6006 (2) | 0.31154 (12) | 0.1027 (3) | 0.0504 (7) | |
H17 | 0.6282 | 0.2942 | 0.0434 | 0.060* | |
C18 | 0.5418 (2) | 0.27616 (11) | 0.1570 (4) | 0.0593 (8) | |
H18 | 0.5297 | 0.2346 | 0.1365 | 0.071* | |
C19 | 0.5010 (2) | 0.30267 (11) | 0.2418 (3) | 0.0466 (6) | |
H19 | 0.4618 | 0.2785 | 0.2806 | 0.056* | |
C20 | 0.68608 (17) | 0.49999 (9) | 0.17504 (19) | 0.0277 (4) | |
C21 | 0.63817 (18) | 0.53953 (10) | 0.0700 (2) | 0.0332 (4) | |
H21 | 0.5591 | 0.5497 | 0.0388 | 0.040* | |
C22 | 0.7044 (2) | 0.56394 (10) | 0.0109 (2) | 0.0373 (5) | |
H22 | 0.6714 | 0.5911 | −0.0602 | 0.045* | |
C23 | 0.81971 (19) | 0.54862 (9) | 0.0557 (2) | 0.0314 (4) | |
C24 | 0.86825 (18) | 0.50883 (10) | 0.1591 (2) | 0.0330 (4) | |
H24 | 0.9469 | 0.4979 | 0.1886 | 0.040* | |
C25 | 0.80155 (18) | 0.48508 (10) | 0.2193 (2) | 0.0316 (4) | |
H25 | 0.8350 | 0.4584 | 0.2912 | 0.038* | |
Cl1 | 0.08126 (6) | 0.85545 (2) | 0.33795 (7) | 0.0507 (2) | |
N1 | 0.28497 (13) | 0.50285 (7) | 0.39467 (15) | 0.0239 (3) | |
H1 | 0.3410 | 0.4845 | 0.3824 | 0.029* | |
N2 | 0.12544 (14) | 0.49511 (7) | 0.44931 (16) | 0.0257 (3) | |
N3 | 0.22872 (16) | 0.41131 (8) | 0.44299 (19) | 0.0341 (4) | |
H3A | 0.1826 | 0.3888 | 0.4650 | 0.041* | |
H3B | 0.2859 | 0.3947 | 0.4300 | 0.041* | |
N4 | 0.02748 (15) | 0.57911 (8) | 0.45960 (18) | 0.0303 (4) | |
H4A | −0.0176 | 0.5560 | 0.4819 | 0.036* | |
H4B | 0.0160 | 0.6181 | 0.4525 | 0.036* | |
C1 | 0.21210 (16) | 0.47019 (8) | 0.42950 (18) | 0.0243 (4) | |
C2 | 0.11292 (16) | 0.55510 (8) | 0.43659 (18) | 0.0243 (4) | |
C3 | 0.18716 (16) | 0.59204 (8) | 0.39895 (18) | 0.0241 (4) | |
C4 | 0.27322 (16) | 0.56345 (8) | 0.37826 (17) | 0.0234 (4) | |
C5 | 0.35677 (18) | 0.59368 (9) | 0.3344 (2) | 0.0288 (4) | |
H5A | 0.4349 | 0.5780 | 0.3865 | 0.035* | |
H5B | 0.3572 | 0.6373 | 0.3514 | 0.035* | |
C6 | 0.3271 (2) | 0.58358 (11) | 0.1887 (2) | 0.0398 (5) | |
H6A | 0.3299 | 0.5405 | 0.1721 | 0.060* | |
H6B | 0.3827 | 0.6049 | 0.1641 | 0.060* | |
H6C | 0.2497 | 0.5989 | 0.1367 | 0.060* | |
C7 | 0.16593 (16) | 0.65788 (8) | 0.38331 (19) | 0.0248 (4) | |
C8 | 0.19577 (19) | 0.69472 (9) | 0.4931 (2) | 0.0311 (4) | |
H8 | 0.2334 | 0.6780 | 0.5782 | 0.037* | |
C9 | 0.1710 (2) | 0.75557 (9) | 0.4791 (2) | 0.0350 (5) | |
H9 | 0.1923 | 0.7806 | 0.5541 | 0.042* | |
C10 | 0.11506 (18) | 0.77934 (9) | 0.3554 (2) | 0.0326 (5) | |
C11 | 0.08432 (19) | 0.74404 (10) | 0.2442 (2) | 0.0338 (5) | |
H11 | 0.0462 | 0.7610 | 0.1593 | 0.041* | |
C12 | 0.11064 (18) | 0.68325 (9) | 0.2598 (2) | 0.0297 (4) | |
H12 | 0.0904 | 0.6585 | 0.1845 | 0.036* | |
S1SA | 0.77732 (6) | 0.71883 (3) | 0.36675 (8) | 0.0390 (2) | 0.7487 (13) |
O1SA | 0.8835 (4) | 0.68442 (14) | 0.4534 (4) | 0.0415 (8) | 0.7487 (13) |
C1SA | 0.6760 (7) | 0.6652 (8) | 0.2710 (19) | 0.0757 (14) | 0.7487 (13) |
H1SA | 0.6414 | 0.6455 | 0.3246 | 0.114* | 0.7487 (13) |
H1SB | 0.7144 | 0.6351 | 0.2389 | 0.114* | 0.7487 (13) |
H1SC | 0.6159 | 0.6852 | 0.1965 | 0.114* | 0.7487 (13) |
C2SA | 0.8085 (6) | 0.7538 (3) | 0.2407 (7) | 0.0677 (16) | 0.7487 (13) |
H2SA | 0.8725 | 0.7819 | 0.2803 | 0.102* | 0.7487 (13) |
H2SB | 0.7405 | 0.7755 | 0.1809 | 0.102* | 0.7487 (13) |
H2SC | 0.8297 | 0.7230 | 0.1919 | 0.102* | 0.7487 (13) |
S1SB | 0.80800 (19) | 0.68308 (10) | 0.2873 (2) | 0.0390 (2) | 0.2513 (13) |
O1SB | 0.8765 (16) | 0.6714 (6) | 0.4284 (13) | 0.0415 (8) | 0.2513 (13) |
C1SB | 0.664 (2) | 0.667 (3) | 0.260 (6) | 0.0757 (14) | 0.2513 (13) |
H1SD | 0.6569 | 0.6245 | 0.2787 | 0.114* | 0.2513 (13) |
H1SE | 0.6132 | 0.6754 | 0.1683 | 0.114* | 0.2513 (13) |
H1SF | 0.6409 | 0.6919 | 0.3175 | 0.114* | 0.2513 (13) |
C2SB | 0.794 (2) | 0.7625 (7) | 0.270 (3) | 0.0677 (16) | 0.2513 (13) |
H2SD | 0.8687 | 0.7799 | 0.2820 | 0.102* | 0.2513 (13) |
H2SE | 0.7697 | 0.7788 | 0.3355 | 0.102* | 0.2513 (13) |
H2SF | 0.7372 | 0.7723 | 0.1819 | 0.102* | 0.2513 (13) |
U11 | U22 | U33 | U12 | U13 | U23 | |
S1 | 0.0340 (3) | 0.0260 (3) | 0.0308 (3) | 0.00097 (17) | 0.0168 (2) | −0.00265 (17) |
F1 | 0.0647 (11) | 0.0439 (9) | 0.0959 (14) | −0.0030 (7) | 0.0418 (10) | 0.0216 (8) |
F2 | 0.0761 (12) | 0.1208 (17) | 0.0363 (9) | −0.0481 (12) | 0.0287 (8) | −0.0166 (9) |
F3 | 0.0403 (8) | 0.0504 (8) | 0.0605 (9) | −0.0097 (6) | 0.0254 (7) | −0.0024 (7) |
O1 | 0.0374 (8) | 0.0294 (7) | 0.0446 (9) | 0.0013 (6) | 0.0254 (7) | −0.0030 (6) |
O2 | 0.0435 (9) | 0.0340 (8) | 0.0627 (11) | −0.0035 (7) | 0.0327 (8) | 0.0002 (7) |
C13 | 0.0246 (9) | 0.0316 (10) | 0.0342 (10) | 0.0011 (8) | 0.0113 (8) | −0.0016 (8) |
C14 | 0.0214 (9) | 0.0295 (10) | 0.0404 (11) | 0.0033 (7) | 0.0104 (8) | −0.0022 (8) |
C14A | 0.0433 (13) | 0.0408 (12) | 0.0387 (12) | −0.0119 (10) | 0.0165 (10) | −0.0029 (9) |
C15 | 0.0216 (9) | 0.0274 (9) | 0.0315 (10) | 0.0038 (7) | 0.0070 (8) | −0.0039 (7) |
C16 | 0.0268 (10) | 0.0390 (11) | 0.0427 (12) | 0.0001 (8) | 0.0158 (9) | −0.0111 (9) |
C17 | 0.0368 (12) | 0.0470 (14) | 0.0759 (18) | −0.0015 (10) | 0.0316 (13) | −0.0260 (13) |
C18 | 0.0477 (14) | 0.0316 (12) | 0.113 (3) | −0.0061 (11) | 0.0467 (16) | −0.0258 (14) |
C19 | 0.0344 (12) | 0.0321 (11) | 0.0814 (19) | −0.0024 (9) | 0.0319 (12) | −0.0079 (11) |
C20 | 0.0308 (10) | 0.0260 (9) | 0.0264 (10) | −0.0011 (7) | 0.0117 (8) | −0.0030 (7) |
C21 | 0.0288 (10) | 0.0332 (10) | 0.0326 (11) | 0.0002 (8) | 0.0074 (8) | 0.0022 (8) |
C22 | 0.0373 (12) | 0.0365 (11) | 0.0302 (11) | −0.0028 (9) | 0.0057 (9) | 0.0069 (8) |
C23 | 0.0346 (11) | 0.0302 (10) | 0.0272 (10) | −0.0089 (8) | 0.0105 (8) | −0.0066 (8) |
C24 | 0.0284 (10) | 0.0376 (11) | 0.0312 (10) | 0.0006 (8) | 0.0102 (8) | −0.0032 (8) |
C25 | 0.0330 (11) | 0.0343 (10) | 0.0259 (10) | 0.0050 (8) | 0.0104 (8) | 0.0032 (8) |
Cl1 | 0.0609 (4) | 0.0217 (3) | 0.0834 (5) | 0.0048 (2) | 0.0435 (4) | −0.0001 (2) |
N1 | 0.0252 (8) | 0.0232 (8) | 0.0268 (8) | −0.0005 (6) | 0.0143 (6) | −0.0013 (6) |
N2 | 0.0249 (8) | 0.0244 (8) | 0.0302 (8) | −0.0024 (6) | 0.0138 (7) | 0.0021 (6) |
N3 | 0.0383 (10) | 0.0228 (8) | 0.0514 (11) | 0.0008 (7) | 0.0289 (9) | 0.0049 (7) |
N4 | 0.0288 (8) | 0.0240 (8) | 0.0451 (10) | 0.0000 (6) | 0.0222 (8) | 0.0037 (7) |
C1 | 0.0251 (9) | 0.0238 (9) | 0.0241 (9) | −0.0021 (7) | 0.0101 (7) | −0.0006 (7) |
C2 | 0.0241 (9) | 0.0252 (9) | 0.0234 (9) | −0.0029 (7) | 0.0096 (7) | 0.0004 (7) |
C3 | 0.0259 (9) | 0.0243 (9) | 0.0228 (9) | −0.0029 (7) | 0.0105 (7) | 0.0002 (7) |
C4 | 0.0253 (9) | 0.0252 (9) | 0.0208 (9) | −0.0046 (7) | 0.0105 (7) | −0.0023 (6) |
C5 | 0.0305 (10) | 0.0272 (9) | 0.0349 (11) | −0.0057 (7) | 0.0197 (9) | −0.0018 (7) |
C6 | 0.0437 (13) | 0.0488 (13) | 0.0344 (12) | −0.0031 (10) | 0.0235 (10) | 0.0052 (9) |
C7 | 0.0244 (9) | 0.0228 (9) | 0.0323 (10) | −0.0036 (7) | 0.0167 (8) | −0.0012 (7) |
C8 | 0.0369 (11) | 0.0303 (10) | 0.0302 (10) | −0.0063 (8) | 0.0177 (9) | −0.0022 (8) |
C9 | 0.0453 (12) | 0.0272 (10) | 0.0418 (12) | −0.0095 (9) | 0.0272 (10) | −0.0111 (8) |
C10 | 0.0351 (11) | 0.0208 (9) | 0.0528 (13) | −0.0014 (8) | 0.0289 (10) | −0.0015 (8) |
C11 | 0.0378 (11) | 0.0279 (10) | 0.0385 (11) | 0.0044 (8) | 0.0185 (9) | 0.0061 (8) |
C12 | 0.0361 (11) | 0.0249 (9) | 0.0302 (10) | −0.0002 (8) | 0.0155 (8) | −0.0032 (7) |
S1SA | 0.0363 (4) | 0.0300 (3) | 0.0499 (4) | 0.0043 (3) | 0.0168 (3) | 0.0011 (3) |
O1SA | 0.0374 (12) | 0.0271 (19) | 0.0538 (19) | 0.0023 (15) | 0.0121 (14) | 0.0044 (13) |
C1SA | 0.067 (3) | 0.0428 (19) | 0.078 (4) | −0.012 (2) | −0.011 (3) | −0.003 (2) |
C2SA | 0.063 (3) | 0.073 (3) | 0.080 (4) | 0.018 (2) | 0.041 (2) | 0.033 (3) |
S1SB | 0.0363 (4) | 0.0300 (3) | 0.0499 (4) | 0.0043 (3) | 0.0168 (3) | 0.0011 (3) |
O1SB | 0.0374 (12) | 0.0271 (19) | 0.0538 (19) | 0.0023 (15) | 0.0121 (14) | 0.0044 (13) |
C1SB | 0.067 (3) | 0.0428 (19) | 0.078 (4) | −0.012 (2) | −0.011 (3) | −0.003 (2) |
C2SB | 0.063 (3) | 0.073 (3) | 0.080 (4) | 0.018 (2) | 0.041 (2) | 0.033 (3) |
S1—C15 | 1.782 (2) | N4—C2 | 1.329 (3) |
S1—C20 | 1.786 (2) | C2—C3 | 1.440 (3) |
F1—C14A | 1.341 (3) | C3—C4 | 1.367 (3) |
F2—C14A | 1.331 (3) | C3—C7 | 1.489 (3) |
F3—C14A | 1.343 (3) | C4—C5 | 1.501 (3) |
O1—C13 | 1.256 (3) | C5—H5A | 0.9900 |
O2—C13 | 1.252 (3) | C5—H5B | 0.9900 |
C13—C14 | 1.514 (3) | C5—C6 | 1.531 (3) |
C14—C15 | 1.410 (3) | C6—H6A | 0.9800 |
C14—C19 | 1.387 (3) | C6—H6B | 0.9800 |
C14A—C23 | 1.492 (3) | C6—H6C | 0.9800 |
C15—C16 | 1.405 (3) | C7—C8 | 1.394 (3) |
C16—H16 | 0.9500 | C7—C12 | 1.389 (3) |
C16—C17 | 1.378 (3) | C8—H8 | 0.9500 |
C17—H17 | 0.9500 | C8—C9 | 1.386 (3) |
C17—C18 | 1.386 (4) | C9—H9 | 0.9500 |
C18—H18 | 0.9500 | C9—C10 | 1.378 (3) |
C18—C19 | 1.385 (4) | C10—C11 | 1.386 (3) |
C19—H19 | 0.9500 | C11—H11 | 0.9500 |
C20—C21 | 1.394 (3) | C11—C12 | 1.389 (3) |
C20—C25 | 1.388 (3) | C12—H12 | 0.9500 |
C21—H21 | 0.9500 | S1SA—O1SA | 1.513 (4) |
C21—C22 | 1.378 (3) | S1SA—C1SA | 1.765 (14) |
C22—H22 | 0.9500 | S1SA—C2SA | 1.791 (5) |
C22—C23 | 1.388 (3) | C1SA—H1SA | 0.9800 |
C23—C24 | 1.387 (3) | C1SA—H1SB | 0.9800 |
C24—H24 | 0.9500 | C1SA—H1SC | 0.9800 |
C24—C25 | 1.385 (3) | C2SA—H2SA | 0.9800 |
C25—H25 | 0.9500 | C2SA—H2SB | 0.9800 |
Cl1—C10 | 1.741 (2) | C2SA—H2SC | 0.9800 |
N1—H1 | 0.8800 | S1SB—O1SB | 1.482 (13) |
N1—C1 | 1.356 (2) | S1SB—C1SB | 1.78 (2) |
N1—C4 | 1.362 (2) | S1SB—C2SB | 1.780 (15) |
N2—C1 | 1.332 (3) | C1SB—H1SD | 0.9800 |
N2—C2 | 1.347 (2) | C1SB—H1SE | 0.9800 |
N3—H3A | 0.8800 | C1SB—H1SF | 0.9800 |
N3—H3B | 0.8800 | C2SB—H2SD | 0.9800 |
N3—C1 | 1.327 (3) | C2SB—H2SE | 0.9800 |
N4—H4A | 0.8800 | C2SB—H2SF | 0.9800 |
N4—H4B | 0.8800 | ||
C15—S1—C20 | 102.95 (9) | C4—C3—C7 | 124.00 (17) |
O1—C13—C14 | 116.17 (18) | N1—C4—C3 | 119.40 (17) |
O2—C13—O1 | 125.6 (2) | N1—C4—C5 | 115.78 (17) |
O2—C13—C14 | 118.25 (19) | C3—C4—C5 | 124.80 (17) |
C15—C14—C13 | 123.22 (18) | C4—C5—H5A | 109.1 |
C19—C14—C13 | 117.7 (2) | C4—C5—H5B | 109.1 |
C19—C14—C15 | 118.9 (2) | C4—C5—C6 | 112.35 (16) |
F1—C14A—F3 | 105.48 (19) | H5A—C5—H5B | 107.9 |
F1—C14A—C23 | 111.9 (2) | C6—C5—H5A | 109.1 |
F2—C14A—F1 | 107.5 (2) | C6—C5—H5B | 109.1 |
F2—C14A—F3 | 105.4 (2) | C5—C6—H6A | 109.5 |
F2—C14A—C23 | 112.77 (19) | C5—C6—H6B | 109.5 |
F3—C14A—C23 | 113.3 (2) | C5—C6—H6C | 109.5 |
C14—C15—S1 | 119.98 (15) | H6A—C6—H6B | 109.5 |
C16—C15—S1 | 121.39 (17) | H6A—C6—H6C | 109.5 |
C16—C15—C14 | 118.62 (19) | H6B—C6—H6C | 109.5 |
C15—C16—H16 | 119.6 | C8—C7—C3 | 120.35 (18) |
C17—C16—C15 | 120.9 (2) | C12—C7—C3 | 120.80 (17) |
C17—C16—H16 | 119.6 | C12—C7—C8 | 118.76 (18) |
C16—C17—H17 | 119.6 | C7—C8—H8 | 119.7 |
C16—C17—C18 | 120.8 (2) | C9—C8—C7 | 120.6 (2) |
C18—C17—H17 | 119.6 | C9—C8—H8 | 119.7 |
C17—C18—H18 | 120.7 | C8—C9—H9 | 120.3 |
C19—C18—C17 | 118.5 (2) | C10—C9—C8 | 119.33 (19) |
C19—C18—H18 | 120.7 | C10—C9—H9 | 120.3 |
C14—C19—H19 | 118.9 | C9—C10—Cl1 | 119.36 (17) |
C18—C19—C14 | 122.2 (2) | C9—C10—C11 | 121.61 (19) |
C18—C19—H19 | 118.9 | C11—C10—Cl1 | 119.03 (18) |
C21—C20—S1 | 117.75 (16) | C10—C11—H11 | 120.8 |
C25—C20—S1 | 122.71 (16) | C10—C11—C12 | 118.3 (2) |
C25—C20—C21 | 119.23 (19) | C12—C11—H11 | 120.8 |
C20—C21—H21 | 119.7 | C7—C12—C11 | 121.40 (19) |
C22—C21—C20 | 120.6 (2) | C7—C12—H12 | 119.3 |
C22—C21—H21 | 119.7 | C11—C12—H12 | 119.3 |
C21—C22—H22 | 120.2 | O1SA—S1SA—C1SA | 106.8 (5) |
C21—C22—C23 | 119.7 (2) | O1SA—S1SA—C2SA | 107.3 (3) |
C23—C22—H22 | 120.2 | C1SA—S1SA—C2SA | 99.2 (7) |
C22—C23—C14A | 118.4 (2) | S1SA—C1SA—H1SA | 109.5 |
C24—C23—C14A | 121.3 (2) | S1SA—C1SA—H1SB | 109.5 |
C24—C23—C22 | 120.3 (2) | S1SA—C1SA—H1SC | 109.5 |
C23—C24—H24 | 120.2 | H1SA—C1SA—H1SB | 109.5 |
C25—C24—C23 | 119.7 (2) | H1SA—C1SA—H1SC | 109.5 |
C25—C24—H24 | 120.2 | H1SB—C1SA—H1SC | 109.5 |
C20—C25—H25 | 119.8 | S1SA—C2SA—H2SA | 109.5 |
C24—C25—C20 | 120.43 (19) | S1SA—C2SA—H2SB | 109.5 |
C24—C25—H25 | 119.8 | S1SA—C2SA—H2SC | 109.5 |
C1—N1—H1 | 119.3 | H2SA—C2SA—H2SB | 109.5 |
C1—N1—C4 | 121.32 (16) | H2SA—C2SA—H2SC | 109.5 |
C4—N1—H1 | 119.3 | H2SB—C2SA—H2SC | 109.5 |
C1—N2—C2 | 117.81 (16) | O1SB—S1SB—C1SB | 105.6 (19) |
H3A—N3—H3B | 120.0 | O1SB—S1SB—C2SB | 106.3 (10) |
C1—N3—H3A | 120.0 | C1SB—S1SB—C2SB | 97.8 (18) |
C1—N3—H3B | 120.0 | S1SB—C1SB—H1SD | 109.5 |
H4A—N4—H4B | 120.0 | S1SB—C1SB—H1SE | 109.5 |
C2—N4—H4A | 120.0 | S1SB—C1SB—H1SF | 109.5 |
C2—N4—H4B | 120.0 | H1SD—C1SB—H1SE | 109.5 |
N2—C1—N1 | 122.34 (17) | H1SD—C1SB—H1SF | 109.5 |
N3—C1—N1 | 117.82 (17) | H1SE—C1SB—H1SF | 109.5 |
N3—C1—N2 | 119.84 (17) | S1SB—C2SB—H2SD | 109.5 |
N2—C2—C3 | 122.31 (17) | S1SB—C2SB—H2SE | 109.5 |
N4—C2—N2 | 116.76 (17) | S1SB—C2SB—H2SF | 109.5 |
N4—C2—C3 | 120.92 (17) | H2SD—C2SB—H2SE | 109.5 |
C2—C3—C7 | 119.20 (17) | H2SD—C2SB—H2SF | 109.5 |
C4—C3—C2 | 116.79 (17) | H2SE—C2SB—H2SF | 109.5 |
S1—C15—C16—C17 | −178.56 (19) | C25—C20—C21—C22 | −0.4 (3) |
S1—C20—C21—C22 | 173.43 (17) | Cl1—C10—C11—C12 | −179.21 (16) |
S1—C20—C25—C24 | −173.98 (16) | N1—C4—C5—C6 | 76.0 (2) |
F1—C14A—C23—C22 | 53.3 (3) | N2—C2—C3—C4 | −1.0 (3) |
F1—C14A—C23—C24 | −126.9 (2) | N2—C2—C3—C7 | 178.32 (17) |
F2—C14A—C23—C22 | −68.0 (3) | N4—C2—C3—C4 | 179.53 (18) |
F2—C14A—C23—C24 | 111.8 (3) | N4—C2—C3—C7 | −1.2 (3) |
F3—C14A—C23—C22 | 172.42 (19) | C1—N1—C4—C3 | 0.9 (3) |
F3—C14A—C23—C24 | −7.8 (3) | C1—N1—C4—C5 | −177.64 (17) |
O1—C13—C14—C15 | 5.1 (3) | C1—N2—C2—N4 | −178.57 (18) |
O1—C13—C14—C19 | −170.1 (2) | C1—N2—C2—C3 | 1.9 (3) |
O2—C13—C14—C15 | −176.7 (2) | C2—N2—C1—N1 | −1.5 (3) |
O2—C13—C14—C19 | 8.1 (3) | C2—N2—C1—N3 | 178.96 (18) |
C13—C14—C15—S1 | 5.4 (3) | C2—C3—C4—N1 | −0.4 (3) |
C13—C14—C15—C16 | −172.93 (19) | C2—C3—C4—C5 | 177.92 (17) |
C13—C14—C19—C18 | 172.7 (2) | C2—C3—C7—C8 | 75.3 (2) |
C14—C15—C16—C17 | −0.3 (3) | C2—C3—C7—C12 | −101.2 (2) |
C14A—C23—C24—C25 | 179.2 (2) | C3—C4—C5—C6 | −102.4 (2) |
C15—S1—C20—C21 | 113.10 (17) | C3—C7—C8—C9 | −176.74 (19) |
C15—S1—C20—C25 | −73.32 (19) | C3—C7—C12—C11 | 176.20 (19) |
C15—C14—C19—C18 | −2.6 (4) | C4—N1—C1—N2 | 0.1 (3) |
C15—C16—C17—C18 | −1.3 (4) | C4—N1—C1—N3 | 179.68 (17) |
C16—C17—C18—C19 | 0.9 (5) | C4—C3—C7—C8 | −105.4 (2) |
C17—C18—C19—C14 | 1.1 (5) | C4—C3—C7—C12 | 78.1 (3) |
C19—C14—C15—S1 | −179.52 (18) | C7—C3—C4—N1 | −179.68 (17) |
C19—C14—C15—C16 | 2.2 (3) | C7—C3—C4—C5 | −1.3 (3) |
C20—S1—C15—C14 | 177.34 (16) | C7—C8—C9—C10 | 0.8 (3) |
C20—S1—C15—C16 | −4.38 (19) | C8—C7—C12—C11 | −0.4 (3) |
C20—C21—C22—C23 | 0.5 (3) | C8—C9—C10—Cl1 | 178.69 (16) |
C21—C20—C25—C24 | −0.5 (3) | C8—C9—C10—C11 | −0.9 (3) |
C21—C22—C23—C14A | 179.9 (2) | C9—C10—C11—C12 | 0.4 (3) |
C21—C22—C23—C24 | 0.2 (3) | C10—C11—C12—C7 | 0.2 (3) |
C22—C23—C24—C25 | −1.0 (3) | C12—C7—C8—C9 | −0.2 (3) |
C23—C24—C25—C20 | 1.2 (3) |
D—H···A | D—H | H···A | D···A | D—H···A |
N1—H1···O1 | 0.88 | 1.79 | 2.674 (2) | 178 |
N3—H3A···O1SAi | 0.88 | 2.20 | 3.046 (6) | 162 |
N3—H3A···O1SBi | 0.88 | 2.13 | 2.97 (2) | 161 |
N3—H3B···O2 | 0.88 | 1.93 | 2.809 (2) | 176 |
N4—H4A···N2ii | 0.88 | 2.15 | 3.030 (2) | 175 |
N4—H4B···O1SAiii | 0.88 | 2.25 | 2.962 (4) | 138 |
N4—H4B···O1SBiii | 0.88 | 2.06 | 2.740 (16) | 133 |
C12—H12···F3iii | 0.95 | 2.57 | 3.444 (2) | 153 |
C2SA—H2SB···O2iv | 0.98 | 2.44 | 3.376 (6) | 160 |
C2SB—H2SE···F1v | 0.98 | 2.55 | 3.16 (3) | 120 |
C2SB—H2SF···O2iv | 0.98 | 2.47 | 3.21 (2) | 132 |
Symmetry codes: (i) −x+1, −y+1, −z+1; (ii) −x, −y+1, −z+1; (iii) x−1, y, z; (iv) −x+1, y+1/2, −z+1/2; (v) x, −y+3/2, z+1/2. |
D—H···A | D—H | H···A | D···A | D—H···A |
N1—H1···O1 | 0.88 | 1.79 | 2.674 (2) | 178 |
N3—H3A···O1SAi | 0.88 | 2.20 | 3.046 (6) | 162 |
N3—H3A···O1SBi | 0.88 | 2.13 | 2.97 (2) | 161 |
N3—H3B···O2 | 0.88 | 1.93 | 2.809 (2) | 176 |
N4—H4A···N2ii | 0.88 | 2.15 | 3.030 (2) | 175 |
N4—H4B···O1SAiii | 0.88 | 2.25 | 2.962 (4) | 138 |
N4—H4B···O1SBiii | 0.88 | 2.06 | 2.740 (16) | 133 |
C12—H12···F3iii | 0.95 | 2.57 | 3.444 (2) | 153 |
C2SA—H2SB···O2iv | 0.98 | 2.44 | 3.376 (6) | 160 |
C2SB—H2SE···F1v | 0.98 | 2.55 | 3.16 (3) | 120 |
C2SB—H2SF···O2iv | 0.98 | 2.47 | 3.21 (2) | 132 |
Symmetry codes: (i) −x+1, −y+1, −z+1; (ii) −x, −y+1, −z+1; (iii) x−1, y, z; (iv) −x+1, y+1/2, −z+1/2; (v) x, −y+3/2, z+1/2. |
Acknowledgements
TSY thanks the University of Mysore for research facilities and is also grateful to the Principal, Maharani's Science College for Women, Mysore, for giving permission to do research. JPJ acknowledges the NSF–MRI program (grant No. CHE-1039027) for funds to purchase the X-ray diffractometer.
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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.
Pyrimethamine (trade name Daraprim; {5-(4-chlorophenyl)-6-ethyl-2,4- pyrimidinediamine} is an antifolate drug and a medication used in combination with other drugs for treatment of protozoan disease like toxoplasmosis, bacterial infections and some types of cancer (Zuccotto et al., 1998; Kraut & Matthews, 1987). Pyrimethamine (PMN) exhibits a donor–acceptor–donor site, so that together with a complimentary molecule it can form three hydrogen bonds, yielding a robust supramolecular synthon (Desiraju, 1995). The crystal structure of 2-amino-4,6-dimethylpyrimidine-cinnamic acid (Balasubramani et al., 2005), pyrimethaminium 3,5-dinitrobenzoate (Subashini et al., 2007),pyrimethamine hydrogen adipate (Devi et al., 2007),2-amino-4,6-dimethylpyrimidine-terephthalic acid (Devi et al., 2006), 2-amino-4,6-dimethylpyrimidine-anthranilic acid (Ebenezer & Muthiah , 2010), 2-amino-4,6-dimethoxypyrimidinium picrate and pyrimethaminium picrate dimethyl sulfoxide solvate (Thanigaimani et al., 2009) have been reported. Recently, the structure of [2-(4- (Trifluoromethyl)phenylsulfanyl]benzoic acid (Yamuna et al., 2013) used in the preparation of the title compound was reported by our research group. As part of our studies in this area, this paper reports the crystal structure of the title compound, (I), (Fig. 1).
In the cation, the dihedral angle between the mean plane of the pyrimidinium and the 4-chlorophenyl ring is 77.2 (5)°. In the anion, the mean planes of the two phenyl rings are twisted with respect to each other by 71.5 (5)°. Disorder was modelled for the dimethyl sulfoxide solvent molecule over two sites in a 0.7487 (13):0.2513 (13) ratio. Within the asymmetric unit, cation-anion N—H···O hydrogen bonds (forming R22(8) graph-set ring motifs) along with cation-cation N—H···N hydrogen bonds are observed. In the crystal additional cation-cation N—H···N hydrogen bonds and cation-solvate N—H···O hydrogen bonds help to consolidate the packing (Fig. 2). Weak cation-anion C—H···F, and solvate-anion C—H···O, C—H···F are also observed (Table 1).