research communications
Crystal structures of 2-[(4,6-diaminopyrimidin-2-yl)sulfanyl]-N-(naphthalen-1-yl)acetamide and 2-[(4,6-diaminopyrimidin-2-yl)sulfanyl]-N-(4-fluorophenyl)acetamide
aCentre of Advanced Study in Crystallography and Biophysics, University of Madras, Guindy Campus, Chennai 600 025, India, and bDepartment of Pharmaceutical Sciences & Technology, Birla Institute of Technology, Mesra, Ranchi 835 215, Jharkhand, India
*Correspondence e-mail: shirai2011@gmail.com
The title compounds, C16H15N5OS, (I), and C12H12FN5OS, (II), are [(diaminopyrimidine)sulfanyl]acetamide derivatives. In (I), the pyrimidine ring is inclined to the naphthalene ring system by 55.5 (1)°, while in (II), the pyrimidine ring is inclined to the benzene ring by 58.93 (8)°. In (II), there is an intramolecular N—H⋯N hydrogen bond and a short C—H⋯O contact. In the crystals of (I) and (II), molecules are linked by pairs of N—H⋯N hydrogen bonds, forming inversion dimers with R22(8) ring motifs. In the crystal of (I), the dimers are linked by bifurcated N—H⋯(O,O) and C—H⋯O hydrogen bonds, forming layers parallel to (100). In the crystal of (II), the dimers are linked by N—H⋯O hydrogen bonds, also forming layers parallel to (100). The layers are linked by C—H⋯F hydrogen bonds, forming a three-dimensional architecture.
1. Chemical context
As a result of the innate ability of bacteria to develop resistance to available antibiotics, there is a critical need to develop new agents to treat more strains that are resilient. Several classes of diaminopyrimidines have been reported as new therapeutic agents. Derivatives of diaminopyrimidines also exhibit anti-cancer activity (Xu et al., 2010), immune suppressant activity (Blumenkopf et al., 2002), hair-growth-stimulant properties, anti-bacterial (Kandeel et al., 1994) and potential anti-microbial properties (Holla et al., 2006). They are also used as potential anti-AIDS agents (Nogueras et al., 1993) and anti-viral agents (Hocková et al., 2004). In this connection, the title 4,6-diaminopyrimidine-based analogues have been synthesized as potential antiviral agents against dengue for targeting NS2B/NS3 protease.
2. Structural commentary
The molecular structure of compound (I) is shown in Fig. 1. The pyrimidine ring is twisted with respect to the thioacetamide unit with the N1—C11—C12—S1 torsion angle being 140.88 (18)°. The pyrimidine ring (C13–C16/N2/N3) makes a dihedral angle of 55.5 (1)° with the naphthalene ring system (C1–C10). The amine nitrogen atoms, N4 and N5, deviate by 0.0235 and 0.0291 Å, respectively, from the plane of the pyrimidine ring.
The molecular structure of compound (II) is shown in Fig. 2. Here, the pyrimidine ring is twisted with respect to the thioacetamide unit with the N1—C7—C8—S1 torsion angle being −82.44 (14)°. The pyrimidine ring (C9–C12/N2/N3) makes a dihedral angle of 58.93 (8)° with the benzene ring (C1–C6). The amine nitrogen atoms, N4 and N5, deviate by 0.0247 and 0.0564 Å, respectively, from the pyrimidine ring. In compound (II), there is an intramolecular N—H⋯N hydrogen bond and a short C—H⋯O interaction present (Table 2 and Fig. 2).
3. Supramolecular features
In the crystal of compound (I), molecules are linked by pairs of N5—H5A⋯N3i hydrogen bonds, forming inversion dimers with an (8) ring motif (Table 1 and Fig. 3). The dimers are linked by bifurcated N—H⋯(O,O) and C—H⋯O hydrogen bonds, forming layers parallel to the bc plane (Table 1 and Fig. 3).
In the crystal of compound (II), inversion dimers, with an (8), ring motif, are also formed via pairs of N5—H5A⋯N2i hydrogen bonds (Table 2 and Fig. 4). This time the dimers are linked by N—H⋯O hydrogen bonds and also form layers parallel to the bc plane (Table 2 and Fig. 4). The layers are linked by C—H⋯F hydrogen bonds, forming a three-dimensional architecture (Table 2 and Fig. 4).
4. Database survey
A search of the Cambridge Structural Database (Version 5.37, update May 2016; Groom et al., 2016) for 2-(pyrimidin-2-yl)-N-phenylacetamide yielded only five hits. They include two 4,6-dimethylpyrimidine analogues viz. 2-(4,6-dimethylpyrimidin-2-ylsulfanyl)-N-phenyl acetamide (DIWXAJ; Gao et al., 2008) and N-(2-chlorophenyl)-2-(4,6-dimethylpyrimidin-2-ylsulfanyl)acetamide (QOTQEW; Li et al., 2009), and three 4,6-diaminopyrimidine compounds viz. 2-[(4,6-diaminopyrimidin-2-yl)sulfanyl]-N-2-methylphenyl)acetamide (GOKWIO; Subasri et al., 2014), 2-[(4,6-diaminopyrimidin-2-yl)sulfanyl]-N-(3-nitrophenyl)acetamide (Subasri et al., 2014) and 2-[(4,6-diaminopyrimidin-2-yl)sulfanyl]-N-(2-chlorophenyl)acetamide (Subasri et al., 2014).
5. Synthesis and crystallization
Compound (I): To a solution of 4,6-diamino-pyrimidine-2-thiol (0.5 g, 3.52 mmol) in 25 ml of ethanol, potassium hydroxide (0.2 g, 3.52 mmol) was added and the mixture refluxed for 30 min. Then 3.52 mmol of 2-chloro-N-(naphthalen-1-yl)acetamide was added and the mixture refluxed for 2.5 h. On completion of the reaction (monitored by TLC), the ethanol was evaporated in vacuo and cold water was added. The precipitate that formed was filtered and dried to give compound (I) as a crystalline powder (yield 92%).
Compound (II): To a solution of 4,6-diamino-pyrimidine-2-thiol (0.5 g, 3.52 mmol) in 25 ml of ethanol, potassium hydroxide (0.2 g, 3.52 mmol) was added and the mixture refluxed for 30 min. Then 3.52 mmol of 2-chloro-N-(4-fluorophenyl)acetamide was added and the mixture refluxed for 4 h. On completion of the reaction (monitored by TLC), ethanol was evaporated in vacuo and cold water was added and the precipitate formed was filtered and dried to give compound (II) as a crystalline powder (yield 88%).
Colourless block-like crystals were obtained by slow evaporation of a solution in CH3OH for compound (I) and C4H8O2 for compound (II).
6. Refinement
Crystal data, data collection and structure . For both compounds the hydrogen atoms were placed in calculated positions and refined as riding: C—H = 0.93–0.97 Å, N—H = 0.86 Å with Uiso(H) = 1.2Ueq(N,C).
details are summarized in Table 3
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Supporting information
https://doi.org/10.1107/S2056989017001293/su5347sup1.cif
contains datablocks global, I, II. DOI:Structure factors: contains datablock I. DOI: https://doi.org/10.1107/S2056989017001293/su5347Isup2.hkl
Structure factors: contains datablock II. DOI: https://doi.org/10.1107/S2056989017001293/su5347IIsup3.hkl
Supporting information file. DOI: https://doi.org/10.1107/S2056989017001293/su5347Isup4.cml
Supporting information file. DOI: https://doi.org/10.1107/S2056989017001293/su5347IIsup5.cml
For both compounds, data collection: APEX2 (Bruker, 2008); cell
SAINT (Bruker, 2008); data reduction: SAINT (Bruker, 2008); program(s) used to solve structure: SHELXS97 (Sheldrick, 2008); program(s) used to refine structure: SHELXL2016 (Sheldrick, 2015); molecular graphics: PLATON (Spek, 2009). Software used to prepare material for publication: SHELXL2016 (Sheldrick, 2015) and PLATON (Spek, 2009) for (I); SHELXL2016/4 (Sheldrick, 2015) and PLATON (Spek, 2009) for (II).C16H15N5OS | F(000) = 680 |
Mr = 325.39 | Dx = 1.378 Mg m−3 |
Monoclinic, P21/c | Mo Kα radiation, λ = 0.71073 Å |
a = 25.1895 (16) Å | Cell parameters from 3849 reflections |
b = 6.9411 (4) Å | θ = 1.6–28.4° |
c = 8.9697 (6) Å | µ = 0.22 mm−1 |
β = 90.943 (4)° | T = 293 K |
V = 1568.08 (17) Å3 | Block, colourless |
Z = 4 | 0.30 × 0.25 × 0.20 mm |
Bruker SMART APEXII area-detector diffractometer | 2095 reflections with I > 2σ(I) |
ω and φ scans | Rint = 0.063 |
Absorption correction: multi-scan (SADABS; Bruker, 2008) | θmax = 28.4°, θmin = 1.6° |
Tmin = 0.752, Tmax = 0.831 | h = −33→33 |
14522 measured reflections | k = −7→9 |
3849 independent reflections | l = −11→12 |
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)] = 0.052 | Hydrogen site location: inferred from neighbouring sites |
wR(F2) = 0.153 | H-atom parameters constrained |
S = 0.98 | w = 1/[σ2(Fo2) + (0.0671P)2 + 0.3358P] where P = (Fo2 + 2Fc2)/3 |
3849 reflections | (Δ/σ)max = 0.001 |
208 parameters | Δρmax = 0.38 e Å−3 |
0 restraints | Δρmin = −0.23 e Å−3 |
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 | ||
N5 | 0.49526 (12) | −0.2169 (5) | 0.6491 (4) | 0.1242 (15) | |
H5A | 0.517831 | −0.151383 | 0.599131 | 0.149* | |
H5B | 0.505205 | −0.319772 | 0.695198 | 0.149* | |
C1 | 0.15258 (14) | −0.2816 (4) | 0.5842 (3) | 0.0706 (9) | |
H1 | 0.156295 | −0.401205 | 0.538876 | 0.085* | |
C2 | 0.10801 (13) | −0.2407 (5) | 0.6613 (3) | 0.0696 (9) | |
H2 | 0.081326 | −0.332820 | 0.667315 | 0.084* | |
C3 | 0.10145 (10) | −0.0625 (4) | 0.7317 (3) | 0.0562 (7) | |
C4 | 0.05553 (12) | −0.0167 (6) | 0.8124 (3) | 0.0725 (9) | |
H4 | 0.028614 | −0.107749 | 0.819483 | 0.087* | |
C5 | 0.04960 (12) | 0.1557 (6) | 0.8794 (3) | 0.0740 (9) | |
H5 | 0.019065 | 0.181697 | 0.932778 | 0.089* | |
C6 | 0.08929 (11) | 0.2952 (5) | 0.8688 (3) | 0.0634 (8) | |
H6 | 0.085036 | 0.413896 | 0.915302 | 0.076* | |
C7 | 0.13418 (10) | 0.2591 (4) | 0.7911 (3) | 0.0501 (6) | |
H7 | 0.160100 | 0.354018 | 0.784284 | 0.060* | |
C8 | 0.14195 (9) | 0.0796 (4) | 0.7205 (2) | 0.0452 (6) | |
C9 | 0.18804 (10) | 0.0334 (4) | 0.6386 (2) | 0.0432 (6) | |
C10 | 0.19288 (11) | −0.1441 (4) | 0.5729 (3) | 0.0576 (7) | |
H10 | 0.223334 | −0.173379 | 0.520215 | 0.069* | |
C11 | 0.26297 (9) | 0.1951 (3) | 0.5182 (2) | 0.0413 (6) | |
C12 | 0.30711 (10) | 0.3383 (4) | 0.5478 (3) | 0.0483 (6) | |
H12A | 0.310700 | 0.357511 | 0.654569 | 0.058* | |
H12B | 0.297111 | 0.460871 | 0.503592 | 0.058* | |
C13 | 0.38351 (10) | 0.0615 (3) | 0.5853 (2) | 0.0422 (6) | |
C14 | 0.44443 (12) | −0.1587 (5) | 0.6552 (3) | 0.0688 (8) | |
C15 | 0.40599 (12) | −0.2535 (4) | 0.7352 (3) | 0.0668 (8) | |
H15 | 0.414154 | −0.364339 | 0.789169 | 0.080* | |
C16 | 0.35572 (11) | −0.1801 (4) | 0.7331 (3) | 0.0481 (6) | |
N1 | 0.22916 (8) | 0.1726 (3) | 0.6311 (2) | 0.0438 (5) | |
H1A | 0.232751 | 0.249634 | 0.705663 | 0.053* | |
N2 | 0.34334 (7) | −0.0183 (3) | 0.6559 (2) | 0.0427 (5) | |
N3 | 0.43337 (8) | 0.0052 (3) | 0.5783 (2) | 0.0540 (6) | |
N4 | 0.31453 (10) | −0.2587 (3) | 0.8082 (2) | 0.0607 (6) | |
H4A | 0.283743 | −0.205232 | 0.803960 | 0.073* | |
H4B | 0.319286 | −0.361782 | 0.859841 | 0.073* | |
O1 | 0.25760 (7) | 0.1132 (3) | 0.39688 (16) | 0.0502 (5) | |
S1 | 0.37019 (3) | 0.26816 (10) | 0.47685 (8) | 0.0554 (2) |
U11 | U22 | U33 | U12 | U13 | U23 | |
N5 | 0.0625 (18) | 0.132 (3) | 0.179 (3) | 0.0403 (19) | 0.033 (2) | 0.099 (3) |
C1 | 0.092 (2) | 0.0530 (19) | 0.0668 (19) | −0.0148 (18) | 0.0000 (17) | −0.0022 (14) |
C2 | 0.077 (2) | 0.064 (2) | 0.0671 (19) | −0.0257 (17) | −0.0050 (16) | 0.0057 (15) |
C3 | 0.0522 (17) | 0.065 (2) | 0.0511 (14) | −0.0107 (14) | 0.0013 (12) | 0.0105 (13) |
C4 | 0.0508 (18) | 0.102 (3) | 0.0654 (18) | −0.0192 (18) | 0.0071 (14) | 0.0168 (18) |
C5 | 0.0437 (17) | 0.113 (3) | 0.0657 (18) | 0.0019 (19) | 0.0160 (13) | 0.008 (2) |
C6 | 0.0519 (17) | 0.082 (2) | 0.0570 (16) | 0.0086 (16) | 0.0112 (13) | −0.0039 (15) |
C7 | 0.0420 (14) | 0.0617 (18) | 0.0467 (14) | 0.0001 (13) | 0.0078 (11) | −0.0006 (12) |
C8 | 0.0440 (14) | 0.0538 (16) | 0.0380 (12) | −0.0021 (12) | 0.0010 (10) | 0.0044 (11) |
C9 | 0.0475 (14) | 0.0455 (15) | 0.0370 (11) | −0.0025 (12) | 0.0051 (10) | 0.0015 (10) |
C10 | 0.0686 (19) | 0.0518 (17) | 0.0526 (15) | −0.0014 (15) | 0.0095 (13) | −0.0034 (13) |
C11 | 0.0460 (14) | 0.0401 (14) | 0.0383 (12) | 0.0119 (11) | 0.0109 (10) | 0.0039 (10) |
C12 | 0.0532 (16) | 0.0384 (14) | 0.0538 (14) | 0.0032 (12) | 0.0137 (12) | 0.0049 (11) |
C13 | 0.0452 (14) | 0.0398 (14) | 0.0417 (12) | −0.0040 (12) | 0.0053 (10) | 0.0008 (10) |
C14 | 0.0571 (19) | 0.070 (2) | 0.080 (2) | 0.0153 (16) | 0.0118 (15) | 0.0257 (17) |
C15 | 0.069 (2) | 0.0556 (19) | 0.0763 (19) | 0.0123 (16) | 0.0136 (16) | 0.0266 (15) |
C16 | 0.0615 (17) | 0.0387 (15) | 0.0444 (13) | −0.0024 (13) | 0.0094 (12) | 0.0017 (11) |
N1 | 0.0465 (12) | 0.0458 (12) | 0.0395 (10) | −0.0020 (10) | 0.0129 (8) | −0.0056 (9) |
N2 | 0.0477 (12) | 0.0369 (12) | 0.0437 (10) | −0.0037 (9) | 0.0069 (9) | 0.0039 (9) |
N3 | 0.0437 (13) | 0.0538 (14) | 0.0646 (13) | 0.0023 (11) | 0.0074 (10) | 0.0137 (11) |
N4 | 0.0713 (16) | 0.0460 (14) | 0.0656 (14) | −0.0062 (12) | 0.0217 (12) | 0.0134 (11) |
O1 | 0.0575 (11) | 0.0562 (11) | 0.0373 (9) | 0.0086 (9) | 0.0110 (7) | −0.0004 (8) |
S1 | 0.0494 (4) | 0.0524 (5) | 0.0651 (4) | 0.0038 (3) | 0.0200 (3) | 0.0208 (3) |
N5—C14 | 1.345 (4) | C9—N1 | 1.419 (3) |
N5—H5A | 0.8600 | C10—H10 | 0.9300 |
N5—H5B | 0.8600 | C11—O1 | 1.234 (3) |
C1—C2 | 1.358 (4) | C11—N1 | 1.343 (3) |
C1—C10 | 1.398 (4) | C11—C12 | 1.512 (4) |
C1—H1 | 0.9300 | C12—S1 | 1.789 (2) |
C2—C3 | 1.400 (4) | C12—H12A | 0.9700 |
C2—H2 | 0.9300 | C12—H12B | 0.9700 |
C3—C4 | 1.411 (4) | C13—N3 | 1.318 (3) |
C3—C8 | 1.424 (4) | C13—N2 | 1.324 (3) |
C4—C5 | 1.349 (5) | C13—S1 | 1.762 (2) |
C4—H4 | 0.9300 | C14—N3 | 1.357 (3) |
C5—C6 | 1.396 (4) | C14—C15 | 1.382 (4) |
C5—H5 | 0.9300 | C15—C16 | 1.365 (4) |
C6—C7 | 1.362 (3) | C15—H15 | 0.9300 |
C6—H6 | 0.9300 | C16—N2 | 1.353 (3) |
C7—C8 | 1.413 (3) | C16—N4 | 1.360 (3) |
C7—H7 | 0.9300 | N1—H1A | 0.8600 |
C8—C9 | 1.421 (3) | N4—H4A | 0.8600 |
C9—C10 | 1.372 (3) | N4—H4B | 0.8600 |
C14—N5—H5A | 120.0 | C1—C10—H10 | 119.6 |
C14—N5—H5B | 120.0 | O1—C11—N1 | 123.4 (2) |
H5A—N5—H5B | 120.0 | O1—C11—C12 | 121.8 (2) |
C2—C1—C10 | 120.1 (3) | N1—C11—C12 | 114.7 (2) |
C2—C1—H1 | 119.9 | C11—C12—S1 | 114.45 (17) |
C10—C1—H1 | 119.9 | C11—C12—H12A | 108.6 |
C1—C2—C3 | 121.3 (3) | S1—C12—H12A | 108.6 |
C1—C2—H2 | 119.4 | C11—C12—H12B | 108.6 |
C3—C2—H2 | 119.4 | S1—C12—H12B | 108.6 |
C2—C3—C4 | 122.3 (3) | H12A—C12—H12B | 107.6 |
C2—C3—C8 | 119.4 (3) | N3—C13—N2 | 129.4 (2) |
C4—C3—C8 | 118.3 (3) | N3—C13—S1 | 112.83 (17) |
C5—C4—C3 | 121.8 (3) | N2—C13—S1 | 117.67 (18) |
C5—C4—H4 | 119.1 | N5—C14—N3 | 114.8 (3) |
C3—C4—H4 | 119.1 | N5—C14—C15 | 123.6 (3) |
C4—C5—C6 | 120.0 (3) | N3—C14—C15 | 121.6 (3) |
C4—C5—H5 | 120.0 | C16—C15—C14 | 118.2 (3) |
C6—C5—H5 | 120.0 | C16—C15—H15 | 120.9 |
C7—C6—C5 | 120.6 (3) | C14—C15—H15 | 120.9 |
C7—C6—H6 | 119.7 | N2—C16—N4 | 114.5 (2) |
C5—C6—H6 | 119.7 | N2—C16—C15 | 121.5 (2) |
C6—C7—C8 | 120.9 (3) | N4—C16—C15 | 123.9 (2) |
C6—C7—H7 | 119.5 | C11—N1—C9 | 126.0 (2) |
C8—C7—H7 | 119.5 | C11—N1—H1A | 117.0 |
C7—C8—C9 | 123.4 (2) | C9—N1—H1A | 117.0 |
C7—C8—C3 | 118.4 (2) | C13—N2—C16 | 114.9 (2) |
C9—C8—C3 | 118.2 (2) | C13—N3—C14 | 114.3 (2) |
C10—C9—N1 | 121.4 (2) | C16—N4—H4A | 120.0 |
C10—C9—C8 | 120.2 (2) | C16—N4—H4B | 120.0 |
N1—C9—C8 | 118.3 (2) | H4A—N4—H4B | 120.0 |
C9—C10—C1 | 120.8 (3) | C13—S1—C12 | 100.80 (11) |
C9—C10—H10 | 119.6 | ||
C10—C1—C2—C3 | −0.5 (5) | O1—C11—C12—S1 | −42.3 (3) |
C1—C2—C3—C4 | 180.0 (3) | N1—C11—C12—S1 | 140.88 (18) |
C1—C2—C3—C8 | 1.0 (4) | N5—C14—C15—C16 | 179.9 (3) |
C2—C3—C4—C5 | −179.8 (3) | N3—C14—C15—C16 | 1.3 (5) |
C8—C3—C4—C5 | −0.8 (4) | C14—C15—C16—N2 | −0.4 (4) |
C3—C4—C5—C6 | 0.7 (5) | C14—C15—C16—N4 | −179.3 (3) |
C4—C5—C6—C7 | 0.0 (5) | O1—C11—N1—C9 | 10.4 (4) |
C5—C6—C7—C8 | −0.6 (4) | C12—C11—N1—C9 | −172.8 (2) |
C6—C7—C8—C9 | −179.7 (2) | C10—C9—N1—C11 | 31.7 (4) |
C6—C7—C8—C3 | 0.5 (4) | C8—C9—N1—C11 | −150.3 (2) |
C2—C3—C8—C7 | 179.3 (2) | N3—C13—N2—C16 | 0.8 (4) |
C4—C3—C8—C7 | 0.2 (4) | S1—C13—N2—C16 | 177.84 (17) |
C2—C3—C8—C9 | −0.6 (4) | N4—C16—N2—C13 | 178.5 (2) |
C4—C3—C8—C9 | −179.7 (2) | C15—C16—N2—C13 | −0.5 (3) |
C7—C8—C9—C10 | −180.0 (2) | N2—C13—N3—C14 | 0.0 (4) |
C3—C8—C9—C10 | −0.1 (3) | S1—C13—N3—C14 | −177.2 (2) |
C7—C8—C9—N1 | 2.1 (3) | N5—C14—N3—C13 | −179.8 (3) |
C3—C8—C9—N1 | −178.1 (2) | C15—C14—N3—C13 | −1.1 (4) |
N1—C9—C10—C1 | 178.4 (2) | N3—C13—S1—C12 | −165.84 (19) |
C8—C9—C10—C1 | 0.6 (4) | N2—C13—S1—C12 | 16.6 (2) |
C2—C1—C10—C9 | −0.2 (4) | C11—C12—S1—C13 | −64.63 (19) |
D—H···A | D—H | H···A | D···A | D—H···A |
N5—H5A···N3i | 0.86 | 2.27 | 3.110 (4) | 167 |
N1—H1A···O1ii | 0.86 | 2.05 | 2.890 (3) | 165 |
N4—H4B···O1iii | 0.86 | 2.36 | 2.964 (3) | 127 |
C12—H12A···O1ii | 0.97 | 2.58 | 3.408 (3) | 143 |
Symmetry codes: (i) −x+1, −y, −z+1; (ii) x, −y+1/2, z+1/2; (iii) x, −y−1/2, z+1/2. |
C12H12FN5OS | F(000) = 608 |
Mr = 293.33 | Dx = 1.441 Mg m−3 |
Monoclinic, P21/c | Mo Kα radiation, λ = 0.71073 Å |
a = 21.7358 (7) Å | Cell parameters from 3312 reflections |
b = 7.3726 (3) Å | θ = 1.9–28.3° |
c = 8.4487 (3) Å | µ = 0.25 mm−1 |
β = 93.092 (1)° | T = 293 K |
V = 1351.93 (9) Å3 | Block, colourless |
Z = 4 | 0.31 × 0.25 × 0.20 mm |
Bruker SMART APEXII area-detector diffractometer | 2829 reflections with I > 2σ(I) |
ω and φ scans | Rint = 0.025 |
Absorption correction: multi-scan (SADABS; Bruker, 2008) | θmax = 28.3°, θmin = 1.9° |
Tmin = 0.652, Tmax = 0.753 | h = −28→28 |
12316 measured reflections | k = −5→9 |
3312 independent reflections | l = −7→11 |
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)] = 0.037 | Hydrogen site location: inferred from neighbouring sites |
wR(F2) = 0.109 | H-atom parameters constrained |
S = 1.05 | w = 1/[σ2(Fo2) + (0.055P)2 + 0.3099P] where P = (Fo2 + 2Fc2)/3 |
3312 reflections | (Δ/σ)max = 0.001 |
181 parameters | Δρmax = 0.22 e Å−3 |
0 restraints | Δρmin = −0.22 e Å−3 |
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 | ||
C1 | 0.43036 (9) | −0.1374 (4) | 0.4152 (3) | 0.0777 (6) | |
C2 | 0.42379 (9) | 0.0399 (4) | 0.3738 (3) | 0.0824 (6) | |
H2 | 0.450358 | 0.092466 | 0.304272 | 0.099* | |
C3 | 0.37714 (8) | 0.1422 (3) | 0.4359 (2) | 0.0658 (4) | |
H3 | 0.372002 | 0.263568 | 0.408377 | 0.079* | |
C4 | 0.33831 (6) | 0.0600 (2) | 0.53966 (17) | 0.0480 (3) | |
C5 | 0.34659 (8) | −0.1211 (2) | 0.5791 (2) | 0.0605 (4) | |
H5 | 0.320667 | −0.175666 | 0.649109 | 0.073* | |
C6 | 0.39282 (10) | −0.2211 (3) | 0.5158 (3) | 0.0746 (5) | |
H6 | 0.398185 | −0.342957 | 0.541273 | 0.089* | |
C7 | 0.26854 (6) | 0.32063 (19) | 0.58470 (16) | 0.0432 (3) | |
C8 | 0.21206 (7) | 0.36589 (19) | 0.67409 (17) | 0.0482 (3) | |
H8A | 0.210250 | 0.496199 | 0.688963 | 0.058* | |
H8B | 0.216105 | 0.310216 | 0.778152 | 0.058* | |
C9 | 0.13013 (6) | 0.07360 (17) | 0.65615 (14) | 0.0378 (3) | |
C10 | 0.06207 (7) | −0.1564 (2) | 0.67975 (18) | 0.0501 (3) | |
C11 | 0.10494 (7) | −0.2466 (2) | 0.77884 (18) | 0.0505 (3) | |
H11 | 0.095821 | −0.358065 | 0.823502 | 0.061* | |
C12 | 0.16170 (7) | −0.16497 (18) | 0.80890 (15) | 0.0415 (3) | |
F1 | 0.47632 (7) | −0.2347 (3) | 0.3527 (2) | 0.1187 (6) | |
N1 | 0.28896 (5) | 0.15094 (17) | 0.60807 (15) | 0.0480 (3) | |
H1 | 0.269193 | 0.087989 | 0.674351 | 0.058* | |
N2 | 0.07407 (5) | 0.00964 (16) | 0.61864 (14) | 0.0452 (3) | |
N3 | 0.17559 (5) | −0.00336 (14) | 0.74173 (12) | 0.0390 (2) | |
N4 | 0.20765 (7) | −0.23810 (17) | 0.90067 (16) | 0.0546 (3) | |
H4A | 0.242409 | −0.182765 | 0.912926 | 0.066* | |
H4B | 0.202291 | −0.340228 | 0.947136 | 0.066* | |
N5 | 0.00588 (8) | −0.2236 (2) | 0.6394 (2) | 0.0815 (5) | |
H5A | −0.019470 | −0.162080 | 0.579047 | 0.098* | |
H5B | −0.004701 | −0.328149 | 0.674068 | 0.098* | |
O1 | 0.29125 (5) | 0.43187 (15) | 0.49776 (14) | 0.0597 (3) | |
S1 | 0.14082 (2) | 0.29101 (5) | 0.57535 (5) | 0.05097 (13) |
U11 | U22 | U33 | U12 | U13 | U23 | |
C1 | 0.0526 (10) | 0.0988 (16) | 0.0819 (13) | 0.0139 (10) | 0.0035 (9) | −0.0235 (12) |
C2 | 0.0581 (11) | 0.1083 (18) | 0.0830 (13) | −0.0068 (11) | 0.0248 (10) | −0.0037 (13) |
C3 | 0.0548 (9) | 0.0710 (11) | 0.0728 (11) | −0.0055 (8) | 0.0142 (8) | 0.0061 (9) |
C4 | 0.0429 (7) | 0.0532 (8) | 0.0478 (7) | −0.0038 (6) | −0.0002 (6) | −0.0007 (6) |
C5 | 0.0577 (9) | 0.0563 (10) | 0.0677 (10) | 0.0023 (7) | 0.0049 (7) | 0.0015 (8) |
C6 | 0.0682 (11) | 0.0665 (12) | 0.0885 (14) | 0.0138 (9) | −0.0011 (10) | −0.0103 (10) |
C7 | 0.0453 (7) | 0.0420 (7) | 0.0418 (6) | −0.0102 (5) | −0.0029 (5) | 0.0014 (5) |
C8 | 0.0597 (8) | 0.0347 (7) | 0.0508 (7) | −0.0064 (6) | 0.0081 (6) | −0.0023 (6) |
C9 | 0.0447 (6) | 0.0333 (6) | 0.0366 (6) | 0.0004 (5) | 0.0123 (5) | −0.0009 (5) |
C10 | 0.0498 (8) | 0.0469 (8) | 0.0543 (8) | −0.0080 (6) | 0.0102 (6) | 0.0061 (6) |
C11 | 0.0604 (9) | 0.0395 (7) | 0.0521 (8) | −0.0086 (6) | 0.0088 (7) | 0.0089 (6) |
C12 | 0.0551 (7) | 0.0340 (6) | 0.0361 (6) | 0.0012 (5) | 0.0082 (5) | −0.0014 (5) |
F1 | 0.0774 (9) | 0.1484 (14) | 0.1323 (13) | 0.0357 (9) | 0.0230 (8) | −0.0415 (11) |
N1 | 0.0499 (6) | 0.0442 (6) | 0.0508 (6) | −0.0030 (5) | 0.0106 (5) | 0.0070 (5) |
N2 | 0.0442 (6) | 0.0422 (6) | 0.0499 (6) | −0.0029 (5) | 0.0079 (5) | 0.0056 (5) |
N3 | 0.0467 (6) | 0.0320 (5) | 0.0390 (5) | −0.0001 (4) | 0.0081 (4) | 0.0003 (4) |
N4 | 0.0677 (8) | 0.0397 (6) | 0.0557 (7) | −0.0015 (6) | −0.0045 (6) | 0.0089 (5) |
N5 | 0.0586 (9) | 0.0747 (11) | 0.1098 (14) | −0.0267 (8) | −0.0091 (8) | 0.0363 (10) |
O1 | 0.0564 (6) | 0.0514 (6) | 0.0719 (7) | −0.0071 (5) | 0.0085 (5) | 0.0188 (5) |
S1 | 0.0472 (2) | 0.0404 (2) | 0.0655 (2) | −0.00120 (14) | 0.00437 (16) | 0.01690 (16) |
C1—C6 | 1.358 (3) | C8—H8B | 0.9700 |
C1—C2 | 1.359 (3) | C9—N3 | 1.3207 (17) |
C1—F1 | 1.359 (2) | C9—N2 | 1.3288 (17) |
C2—C3 | 1.389 (3) | C9—S1 | 1.7625 (13) |
C2—H2 | 0.9300 | C10—N5 | 1.345 (2) |
C3—C4 | 1.388 (2) | C10—N2 | 1.3594 (18) |
C3—H3 | 0.9300 | C10—C11 | 1.388 (2) |
C4—C5 | 1.386 (2) | C11—C12 | 1.384 (2) |
C4—N1 | 1.4144 (19) | C11—H11 | 0.9300 |
C5—C6 | 1.378 (3) | C12—N4 | 1.3438 (19) |
C5—H5 | 0.9300 | C12—N3 | 1.3606 (17) |
C6—H6 | 0.9300 | N1—H1 | 0.8600 |
C7—O1 | 1.2227 (16) | N4—H4A | 0.8600 |
C7—N1 | 1.3386 (19) | N4—H4B | 0.8600 |
C7—C8 | 1.513 (2) | N5—H5A | 0.8600 |
C8—S1 | 1.8054 (15) | N5—H5B | 0.8600 |
C8—H8A | 0.9700 | ||
C6—C1—C2 | 122.69 (18) | H8A—C8—H8B | 107.7 |
C6—C1—F1 | 118.8 (2) | N3—C9—N2 | 128.87 (12) |
C2—C1—F1 | 118.5 (2) | N3—C9—S1 | 119.50 (10) |
C1—C2—C3 | 119.57 (19) | N2—C9—S1 | 111.64 (10) |
C1—C2—H2 | 120.2 | N5—C10—N2 | 115.21 (15) |
C3—C2—H2 | 120.2 | N5—C10—C11 | 123.17 (14) |
C4—C3—C2 | 118.9 (2) | N2—C10—C11 | 121.61 (14) |
C4—C3—H3 | 120.6 | C12—C11—C10 | 117.71 (13) |
C2—C3—H3 | 120.6 | C12—C11—H11 | 121.1 |
C5—C4—C3 | 119.78 (16) | C10—C11—H11 | 121.1 |
C5—C4—N1 | 116.72 (14) | N4—C12—N3 | 114.66 (13) |
C3—C4—N1 | 123.49 (16) | N4—C12—C11 | 123.98 (13) |
C6—C5—C4 | 120.67 (18) | N3—C12—C11 | 121.34 (13) |
C6—C5—H5 | 119.7 | C7—N1—C4 | 129.45 (13) |
C4—C5—H5 | 119.7 | C7—N1—H1 | 115.3 |
C1—C6—C5 | 118.4 (2) | C4—N1—H1 | 115.3 |
C1—C6—H6 | 120.8 | C9—N2—C10 | 114.92 (12) |
C5—C6—H6 | 120.8 | C9—N3—C12 | 115.35 (11) |
O1—C7—N1 | 125.03 (14) | C12—N4—H4A | 120.0 |
O1—C7—C8 | 121.11 (13) | C12—N4—H4B | 120.0 |
N1—C7—C8 | 113.84 (12) | H4A—N4—H4B | 120.0 |
C7—C8—S1 | 113.63 (10) | C10—N5—H5A | 120.0 |
C7—C8—H8A | 108.8 | C10—N5—H5B | 120.0 |
S1—C8—H8A | 108.8 | H5A—N5—H5B | 120.0 |
C7—C8—H8B | 108.8 | C9—S1—C8 | 103.11 (7) |
S1—C8—H8B | 108.8 | ||
C6—C1—C2—C3 | 0.2 (3) | O1—C7—N1—C4 | −1.5 (2) |
F1—C1—C2—C3 | 179.92 (18) | C8—C7—N1—C4 | 177.03 (13) |
C1—C2—C3—C4 | 0.2 (3) | C5—C4—N1—C7 | −176.10 (15) |
C2—C3—C4—C5 | −0.1 (3) | C3—C4—N1—C7 | 3.0 (2) |
C2—C3—C4—N1 | −179.19 (16) | N3—C9—N2—C10 | 1.3 (2) |
C3—C4—C5—C6 | −0.3 (3) | S1—C9—N2—C10 | −178.73 (10) |
N1—C4—C5—C6 | 178.83 (15) | N5—C10—N2—C9 | −178.64 (15) |
C2—C1—C6—C5 | −0.6 (3) | C11—C10—N2—C9 | 2.5 (2) |
F1—C1—C6—C5 | 179.66 (18) | N2—C9—N3—C12 | −4.68 (19) |
C4—C5—C6—C1 | 0.7 (3) | S1—C9—N3—C12 | 175.34 (9) |
O1—C7—C8—S1 | 96.18 (14) | N4—C12—N3—C9 | −177.50 (12) |
N1—C7—C8—S1 | −82.44 (14) | C11—C12—N3—C9 | 4.35 (18) |
N5—C10—C11—C12 | 178.71 (16) | N3—C9—S1—C8 | −11.34 (11) |
N2—C10—C11—C12 | −2.5 (2) | N2—C9—S1—C8 | 168.68 (10) |
C10—C11—C12—N4 | −179.08 (14) | C7—C8—S1—C9 | 91.88 (11) |
C10—C11—C12—N3 | −1.1 (2) |
D—H···A | D—H | H···A | D···A | D—H···A |
N1—H1···N3 | 0.86 | 2.25 | 2.990 (2) | 145 |
C3—H3···O1 | 0.93 | 2.31 | 2.903 (2) | 121 |
N5—H5A···N2i | 0.86 | 2.29 | 3.139 (2) | 169 |
N4—H4A···O1ii | 0.86 | 2.23 | 2.9852 (18) | 146 |
C2—H2···F1iii | 0.93 | 2.48 | 3.404 (3) | 172 |
Symmetry codes: (i) −x, −y, −z+1; (ii) x, −y+1/2, z+1/2; (iii) −x+1, y+1/2, −z+1/2. |
Acknowledgements
The authors thank the TBI X-ray facility, CAS in Crystallography and Biophysics, University of Madras, India, for the data collection. SS and DV thank the UGC (SAP–CAS) for the departmental facilities. SS also thanks UGC for the award of a meritorious fellowship.
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