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ISSN: 2056-9890

Crystal structure and Hirshfeld surface analysis of (E)-2-(5-bromo-2-hy­dr­oxy­benzyl­­idene)hydrazine­carbo­thio­amide di­methyl sulfoxide monosolvate

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aDepartment of Chemistry, Government Arts College (Autonomous), Thanthonimalai, Karur- 639 005, Tamil Nadu, India
*Correspondence e-mail: manavaibala@gmail.com

Edited by H. Stoeckli-Evans, University of Neuchâtel, Switzerland (Received 8 December 2017; accepted 4 January 2018; online 9 January 2018)

The mol­ecule of the title Schiff base, C8H8BrN3OS·C2H6OS, which crystallizes as a di­methyl sulfoxide (DMSO) monosolvate, displays an E configuration with respect to the C=N bond, with a dihedral angle of 14.54 (11)° between the benzene ring and the mean plane of the N—N—C(N)=S unit. In the crystal, mol­ecules are linked by N—H⋯O hydrogen bonds, forming chains propagating along the b-axis direction. Within the chains there are R23(11) ring motifs, which are reinforced by C—H⋯ODMSO hydrogen bonds enclosing secondary R12(6) and R23(9) loops. The chains are linked by O—Hhydrox­yl⋯S hydrogen bonds, forming layers parallel to (011). Inversion-related layers are linked by short Br⋯Br inter­actions [3.5585 (5) Å], forming slabs parallel to (011). The inter­molecular inter­actions have been investigated using Hirshfeld surface studies and two-dimensional fingerprint plots. The crystal structure of the unsolvated form of the title compound has been reported previously [Kargar et al. (2010). Acta Cryst. E66, o2999], and its solid-state structure is compared with that of the title solvated form.

1. Chemical context

Schiff bases are nitro­gen-containing active organic compounds that play a vital role in enzymatic reactions involving inter­action of an enzyme with a carbonyl group of a substrate (Tidwell, 2008[Tidwell, T. T. (2008). Angew. Chem. Int. Ed. 47, 1016-1020.]). Thio­semicarbazones exhibit inter­esting pharmacological properties and biological activities. Thio­semicarbazone derivatives have gained special importance because of their role in drug development; for example they are used as anti­viral, anti­tubercular, anti-bacterial infection, analgesic and anti­allergic agents and in the treatment of central nervous system disorders and as sodium channel blockers and show anti­tumorous activity. The pharmacological versatility of semicarbazones, thio­semicarbazones and their metal complexes have been reviewed by Beraldo & Gambino (2004[Beraldo, H. & Gambino, D. (2004). Mini Rev. Med. Chem. 4, 31-39.]).

Thio­semicarbazones are formed by the condensation of thio­semicarbazides with aldehydes or ketones (Sriram et al., 2006[Sriram, D., Yogeeswari, P., Thirumurugan, R. & Pavana, R. K. (2006). J. Med. Chem. 49, 3448-3450.]; Scovill et al., 1982[Scovill, J. P., Klayman, D. L. & Franchino, D. G. (1982). J. Med. Chem. 25, 1261-1264.]). They are also used in most branches of chemistry, for example, as dyes, photographic films, plastics and in the textile industry. These types of compounds also act as ligands for a variety of transition metals, often as high propensity multi-dentate chelating agents (Al-Karawi et al., 2009[Al-Karawi, A. J. M., Clegg, W., Harrington, R. S. & Henderson, R. A. (2009). Dalton Trans. pp. 564-570.]). Herein, we report on the crystal structure of the title thio­semicarbazone that crystallizes as a dimethyl sulfoxide monosolvate. The crystal structure of the unsolvated form of the title Schiff base has been reported previously (Kargar et al., 2010a[Kargar, H., Kia, R., Akkurt, M. & Büyükgüngör, O. (2010a). Acta Cryst. E66, o2999.]), and its solid-state structure is compared with that of the title solvated form.

[Scheme 1]

2. Structural commentary

The mol­ecular structure of the title compound is shown in Fig. 1[link]. The thio­semicarbazone mol­ecule has an E configurationabout the C7=N1 bond. The mol­ecule is twisted with a dihedral angle of 14.54 (11)° between the benzene ring and the mean plane of the N1/N2/C8/N3/S1 unit. The C8—-S1 bond distance of 1.698 (2) Å is close to that expected for a C=S bond (Cambridge Structural Database; Groom et al., 2016[Groom, C. R., Bruno, I. J., Lightfoot, M. P. & Ward, S. C. (2016). Acta Cryst. B72, 171-179.]). This confirms the existence of the compound in the thio­amido form in the solid state, similar to the situation observed in some related compounds, viz. (E)-2-(2,4-di­hydroxy­benzyl­idene)thio­semicarbazone and (E)-2-[(1H-indol-3-yl)methyl­ene]thio­semicarbazone (Yıldız et al., 2009[Yıldız, M., Ünver, H., Erdener, D., Kiraz, A. & İskeleli, N. O. (2009). J. Mol. Struct. 919, 227-234.]). The C1—N7 bond distance is 1.278 (3) Å, close to that of a C=N double bond, confirming the azomethine bond formation, again similar to the situation observed in related compounds, viz. (E)-1-[4-(di­methyl­amino)­benzyl­idene]thio­semicarbazide (Sun et al. 2009[Sun, Y., Fu, S., Zhang, J., Wang, X. & Wang, D. (2009). Acta Cryst. E65, o237.]) and 2-[(2-hy­droxy­naphthalen-1-yl)methyl­ene]hydra­zine­carbo­thio­amide (Sivajeyanthi et al. 2017[Sivajeyanthi, P., Jeevaraj, M., Balasubramani, K., Viswanathan, V. & Velmurugan, D. (2017). Chemical Data Collections, 11-12, 220-231.]).

[Figure 1]
Figure 1
A view of the mol­ecular structure of the title compound, with the atom labelling. Displacement ellipsoids are drawn at the 50% probability level.

In the mol­ecular structure of the unsolvated form of the title compound (Kargar et al., 2010a[Kargar, H., Kia, R., Akkurt, M. & Büyükgüngör, O. (2010a). Acta Cryst. E66, o2999.]), an intra­molecular O—H⋯N hydrogen bond is present enclosing an S(6) ring motif. Comparing the two mol­ecules, as shown in the structural overlay of Fig. 2[link], it can be seen that the benzene ring of the title solvated compound is rotated by ca. 180° with respect to that in the unsolvated form of the mol­ecule. The bond lengths and bond angles of the two mol­ecules are similar. In the title compound, the dihedral angle between the benzene ring and the mean plane of the N—N—C(N)=S hydrazinecarbo­thio­amide unit is 14.54 (11)° compared to ca 7.05° in the unsolvated phase. Kargar et al. (2010b[Kargar, H., Kia, R., Akkurt, M. & Büyükgüngör, O. (2010b). Acta Cryst. E66, o2981.]) have also reported the crystal structure of the unsolvated chloro-substituted analogue. This mol­ecule has the same conformation as the unsolvated bromo-substituted analogue (Kargar et al., 2010a[Kargar, H., Kia, R., Akkurt, M. & Büyükgüngör, O. (2010a). Acta Cryst. E66, o2999.]), but in contrast it crystallizes in the monoclinic space group P21/c, while the unsolvated bromo compound crystallizes in the chiral ortho­rhom­bic space group P212121.

[Figure 2]
Figure 2
The structural overlay of the title mol­ecule with that of the unsolvated form (CEDPAE; Kargar et al., 2010a[Kargar, H., Kia, R., Akkurt, M. & Büyükgüngör, O. (2010a). Acta Cryst. E66, o2999.]), showing the presence of the intra­molecular O—H⋯N hydrogen bond (dashed line) in CEDPAE.

3. Supra­molecular features

In the crystal, the Schiff base hydrazone is hydrogen bonded (see Table 1[link]) to the di­methyl sulfoxide solvate mol­ecule, forming a chain propagating along the b-axis direction, as shown in Fig. 3[link]. Within the chains there are R32(11) ring motifs, which are reinforced by C—H⋯ODMSO hydrogen bonds enclosing secondary R21(6) and R32(9) ring motifs (Table 1[link]). The R32(11) ring motif is formed by N2—H2⋯O2ii, N3—H3A⋯O1iii and N3—H3B⋯O2iv hydrogen-bonding inter­actions, and the R21(6) ring motif is formed via C7—H7⋯O2ii and N2—H2⋯O2ii hydrogen-bonding inter­actions. Hence, atom O2 of the di­methyl sulfoxide acts as a trifurcated acceptor (Fig. 3[link], Table 1[link]). The chains are linked by O1—H1⋯Si hydrogen bonds, forming layers parallel to plane (011); see Fig. 4[link] and Table 1[link]. Inversion-related layers are linked by short Br⋯Br(−x, −y + 1, −z + 1) inter­actions of 3.5585 (5) Å, forming slabs parallel to (011), as illustrated in Fig. 5[link].

Table 1
Hydrogen-bond geometry (Å, °)

D—H⋯A D—H H⋯A DA D—H⋯A
O1—H1⋯S1i 0.82 2.40 3.1655 (17) 157
N2—H2⋯O2ii 0.86 2.10 2.897 (2) 155
N3—H3A⋯O1iii 0.86 2.37 3.048 (2) 136
N3—H3B⋯O2iv 0.86 2.11 2.930 (3) 160
C7—H7⋯O2ii 0.93 2.53 3.315 (3) 142
Symmetry codes: (i) x-1, y+1, z; (ii) x+1, y, z; (iii) x, y-1, z; (iv) x+1, y-1, z.
[Figure 3]
Figure 3
A partial view, almost normal to the (011) plane, of the hydrogen-bonded chain (dashed lines; see Table 1[link]) propagating along the [010] direction. In this and subsequent figures, only the H atoms involved in hydrogen bonding have been included.
[Figure 4]
Figure 4
A view, almost normal to (011), of the hydrogen-bonded sheets parallel to (011). The hydrogen bonds are shown as dashed lines and details are given in Table 1[link].
[Figure 5]
Figure 5
A view along the b axis of the crystal packing of the title compound. The hydrogen bonds (see Table 1[link]) and the short Br⋯Br inter­actions are shown as dashed lines.

4. Hirshfeld surface analysis

The three-dimensional dnorm surface is a useful tool to analyse and visualize the inter-mol­ecular inter­actions. dnorm takes negative or positive values depending on whether the inter­molecular contact is shorter or longer than the van der Waals radii (Spackman & Jayatilaka, 2009[Spackman, M. A. & Jayatilaka, D. (2009). CrystEngComm, 11, 19-32.]; McKinnon et al., 2007[McKinnon, J. J., Jayatilaka, D. & Spackman, M. A. (2007). Chem. Commun. pp. 3814-3816.]). The three-dimensional dnorm surface of the title compound is shown in Fig. 6[link]. The red points, which represent closer contacts and negative dnorm values on the surface, correspond to the N—H⋯O, O—H⋯S and C—H⋯O inter­actions. The percentage contributions of various contacts to the total Hirshfeld surface are as follows: H⋯H (32.9%), S⋯H/H⋯S (18.8%), O⋯H/H⋯O (13.3%), Br⋯H/H⋯Br (11.6), C⋯H/H⋯C (8.8%), N⋯H/H⋯N (3.4%), C⋯C (2.8%), Br⋯N/N⋯Br (2.0%), Br⋯Br (1.5%), Br⋯O/O⋯Br (1.1%), Br⋯C/C⋯Br (1.1%), C⋯N/N⋯C (1.0%), S⋯S (0.7%), S⋯N/N⋯S (0.6%) and S⋯C/C⋯S (0.2%), as shown in the two-dimensional fingerprint plots in Fig. 7[link].

[Figure 6]
Figure 6
Hirshfeld surfaces mapped over dnorm for the title compound.
[Figure 7]
Figure 7
Two-dimensional fingerprint plots of the crystal and the relative contributions of the atom pairs to the Hirshfeld surface.

5. Database survey

A search of the Cambridge Structural Database (Version 5.38, update May 2017; Groom et al., 2016[Groom, C. R., Bruno, I. J., Lightfoot, M. P. & Ward, S. C. (2016). Acta Cryst. B72, 171-179.]) for the 2-hy­droxy­benzaldehyde thio­semicarbazone skeleton (or salicyl­aldehyde thio­semicarbazone) yielded 25 hits. These include the unsolvated bromo- and chloro-substituted analogues of the title compound mentioned above, viz. 5-bromo-2-hy­droxy­benzaldehyde thio­semicarbazone (CEDPAE; Kargar et al., 2010a[Kargar, H., Kia, R., Akkurt, M. & Büyükgüngör, O. (2010a). Acta Cryst. E66, o2999.]) and 2-(5-chloro-2-hy­droxy­benzyl­idene)hydra­zine­carbo­thio­amide (VACGUD; Kargar et al., 2010b[Kargar, H., Kia, R., Akkurt, M. & Büyükgüngör, O. (2010b). Acta Cryst. E66, o2981.]). The crystal structure of salicyl­aldehyde thio­semicarbazone has also been reported at 295 K (GEXKID; Chattopadhyay et al., 1988[Chattopadhyay, D., Mazumdar, S. K., Banerjee, T., Ghosh, S. & Mak, T. C. W. (1988). Acta Cryst. C44, 1025-1028.]) and at 100 K (GEXKID01; Novaković et al., 2007[Novaković, S. B., Fraisse, B., Bogdanović, G. A. & Spasojević-de Biré, A. (2007). Cryst. Growth Des. 7, 191-195.]). The crystal structures of various hydrated forms of salicyl­aldehydethio­semicarbazone [(E)-2-(2-hy­droxy­benzyl­idene)hydrazine­carbo­thio­amide hydrate] have been reported at 100 K (UJIPIN) and 203 K (UJIPOT and UJIPUZ) by Monfared et al. (2010[Monfared, H. H., Chamayou, A.-C., Khajeh, S. & Janiak, C. (2010). CrystEngComm, 12, 3526-2530.]). In the majority of the hits, the 2-hy­droxy group forms an intra­molecular O—H⋯N hydrogen bond, as shown for CEDPAE in Fig. 2[link]. Consequently, in the compounds mentioned above, the dihedral angle between the benzene ring and the mean plane of the N—N—C(N)=S hydrazinecarbo­thio­amide unit is relatively small, varying from ca 5.62 to 10.10°, compared to 14.54 (11)° in the title compound.

6. Synthesis and crystallization

The title compound was synthesized by refluxing for 8 h a 1:1 molar ratio of a hot ethano­lic solution (20 ml) of thio­semicarbazide (0.091 mg, Aldrich) and a hot ethano­lic solution of 5-bromo­salicyl­aldehyde (0.196 mg, Aldrich). The solution was then cooled and kept at room temperature. The precipitate that formed was filtered off and recrystallized from di­methyl sulfoxide. Colourless block-like crystals, suitable for the X-ray analysis, were obtained in a few days on slow evaporation of the solvent.

7. Refinement

Crystal data, data collection and structure refinement details are summarized in Table 2[link]. The hydrogen atoms were fixed geometrically (O—H = 0.82, N—H = 0.86, C—H = 0.93–0.96 Å) and allowed to ride on their parent atoms with Uiso(H) = 1.5Ueq(O-hydroxyl, C-meth­yl) and 1.2Ueq(N,C) for other H atoms.

Table 2
Experimental details

Crystal data
Chemical formula C8H8BrN3OS·C2H6OS
Mr 352.26
Crystal system, space group Triclinic, P[\overline{1}]
Temperature (K) 296
a, b, c (Å) 6.5411 (4), 7.3889 (6), 15.0662 (12)
α, β, γ (°) 78.772 (3), 86.872 (3), 87.376 (3)
V3) 712.71 (9)
Z 2
Radiation type Mo Kα
μ (mm−1) 3.17
Crystal size (mm) 0.30 × 0.20 × 0.20
 
Data collection
Diffractometer Bruker Kappa APEXII CCD
Absorption correction Multi-scan (SADABS; Bruker, 2004[Bruker (2004). SAINT, APEX2, XPREP and SADABS. Bruker AXS Inc., Madison, Wisconsin, USA.])
Tmin, Tmax 0.449, 0.569
No. of measured, independent and observed [I > 2σ(I)] reflections 6030, 3299, 2661
Rint 0.018
(sin θ/λ)max−1) 0.666
 
Refinement
R[F2 > 2σ(F2)], wR(F2), S 0.030, 0.106, 0.79
No. of reflections 3299
No. of parameters 165
H-atom treatment H-atom parameters constrained
Δρmax, Δρmin (e Å−3) 0.27, −0.34
Computer programs: APEX2, SAINT and XPREP (Bruker, 2004[Bruker (2004). SAINT, APEX2, XPREP and SADABS. Bruker AXS Inc., Madison, Wisconsin, USA.]), SIR92 (Altomare et al., 1993[Altomare, A., Cascarano, G., Giacovazzo, C. & Guagliardi, A. (1993). J. Appl. Cryst. 26, 343-350.]), SHELXL2017/1 (Sheldrick, 2015[Sheldrick, G. M. (2015). Acta Cryst. C71, 3-8.]), PLATON (Spek 2009[Spek, A. L. (2009). Acta Cryst. D65, 148-155.]), Mercury (Macrae et al., 2008[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.]) and publCIF (Westrip, 2010[Westrip, S. P. (2010). J. Appl. Cryst. 43, 920-925.]).

Supporting information


Computing details top

Data collection: APEX2 (Bruker, 2004); cell refinement: APEX2 and SAINT (Bruker, 2004); data reduction: SAINT and XPREP (Bruker, 2004); program(s) used to solve structure: SIR92 (Altomare et al., 1993); program(s) used to refine structure: SHELXL2017/1 (Sheldrick, 2015); molecular graphics: PLATON (Spek 2009) and Mercury (Macrae et al., 2008); software used to prepare material for publication: SHELXL2017/1 (Sheldrick, 2015), PLATON (Spek 2009) and publCIF (Westrip, 2010).

(E)-2-(5-Bromo-2-hydroxybenzylidene)hydrazinecarbothioamide dimethyl sulfoxide monosolvate top
Crystal data top
C8H8BrN3OS·C2H6OSZ = 2
Mr = 352.26F(000) = 356
Triclinic, P1Dx = 1.637 Mg m3
a = 6.5411 (4) ÅMo Kα radiation, λ = 0.71073 Å
b = 7.3889 (6) ÅCell parameters from 2934 reflections
c = 15.0662 (12) Åθ = 5.5–55.9°
α = 78.772 (3)°µ = 3.17 mm1
β = 86.872 (3)°T = 296 K
γ = 87.376 (3)°Block, colourless
V = 712.71 (9) Å30.30 × 0.20 × 0.20 mm
Data collection top
Bruker Kappa APEXII CCD
diffractometer
2661 reflections with I > 2σ(I)
Radiation source: fine-focus sealed tubeRint = 0.018
ω and φ scanθmax = 28.3°, θmin = 3.4°
Absorption correction: multi-scan
(SADABS; Bruker, 2004)
h = 86
Tmin = 0.449, Tmax = 0.569k = 99
6030 measured reflectionsl = 1719
3299 independent reflections
Refinement top
Refinement on F2Primary atom site location: structure-invariant direct methods
Least-squares matrix: fullSecondary atom site location: difference Fourier map
R[F2 > 2σ(F2)] = 0.030Hydrogen site location: inferred from neighbouring sites
wR(F2) = 0.106H-atom parameters constrained
S = 0.79 w = 1/[σ2(Fo2) + (0.1P)2]
where P = (Fo2 + 2Fc2)/3
3299 reflections(Δ/σ)max = 0.001
165 parametersΔρmax = 0.27 e Å3
0 restraintsΔρmin = 0.34 e Å3
Special details top

Geometry. Bond distances, angles etc. have been calculated using the rounded fractional coordinates. All su's are estimated from the variances of the (full) variance-covariance matrix. The cell esds are taken into account in the estimation of distances, angles and torsion angles

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.

Fractional atomic coordinates and isotropic or equivalent isotropic displacement parameters (Å2) top
xyzUiso*/Ueq
Br10.20262 (4)0.63938 (4)0.51812 (2)0.0512 (1)
S11.36501 (8)0.37819 (8)0.83370 (4)0.0359 (2)
S20.24643 (10)0.89596 (8)0.93448 (4)0.0421 (2)
O10.6312 (2)1.1359 (2)0.71559 (12)0.0382 (5)
N10.8705 (3)0.6223 (3)0.72520 (13)0.0300 (5)
N21.0553 (3)0.5884 (2)0.76701 (13)0.0305 (5)
N31.0303 (3)0.2820 (3)0.76421 (15)0.0389 (6)
C10.6169 (3)0.8495 (3)0.66806 (14)0.0267 (6)
O20.1487 (3)0.9012 (2)0.84564 (14)0.0512 (6)
C20.5325 (3)1.0274 (3)0.66902 (15)0.0287 (6)
C30.3559 (3)1.0884 (3)0.62389 (16)0.0346 (7)
C40.2574 (4)0.9727 (3)0.57957 (17)0.0385 (7)
C50.3383 (3)0.7961 (3)0.58003 (15)0.0325 (6)
C60.5159 (3)0.7339 (3)0.62232 (15)0.0309 (6)
C70.8054 (3)0.7906 (3)0.71317 (15)0.0300 (6)
C81.1348 (3)0.4159 (3)0.78513 (14)0.0274 (6)
C90.5074 (4)0.8287 (4)0.9172 (2)0.0493 (9)
C100.1671 (5)0.6884 (4)1.0067 (2)0.0578 (10)
H10.549611.212580.731210.0570*
H21.118490.677470.781220.0360*
H30.303381.207640.623410.0410*
H3A0.914170.307000.739580.0470*
H3B1.078440.170080.775250.0470*
H40.138111.013110.549760.0460*
H60.569080.615670.620690.0370*
H70.880390.876800.733760.0360*
H9A0.515330.720240.890720.0740*
H9B0.571910.802430.974220.0740*
H9C0.576100.926930.877210.0740*
H10A0.021450.695221.018270.0870*
H10B0.234430.672441.062880.0870*
H10C0.202630.585510.977880.0870*
Atomic displacement parameters (Å2) top
U11U22U33U12U13U23
Br10.0489 (2)0.0567 (2)0.0538 (2)0.0095 (1)0.0172 (1)0.0193 (1)
S10.0323 (3)0.0315 (3)0.0469 (4)0.0088 (2)0.0164 (2)0.0132 (2)
S20.0571 (4)0.0295 (3)0.0432 (4)0.0032 (3)0.0125 (3)0.0124 (3)
O10.0344 (8)0.0356 (8)0.0498 (10)0.0071 (7)0.0122 (7)0.0203 (7)
N10.0244 (8)0.0301 (9)0.0365 (10)0.0043 (7)0.0081 (7)0.0086 (7)
N20.0273 (9)0.0241 (8)0.0417 (11)0.0023 (7)0.0132 (7)0.0082 (7)
N30.0374 (10)0.0260 (9)0.0566 (14)0.0019 (8)0.0182 (9)0.0123 (9)
C10.0254 (10)0.0273 (10)0.0267 (10)0.0031 (8)0.0038 (7)0.0040 (8)
O20.0724 (13)0.0296 (8)0.0554 (12)0.0027 (8)0.0339 (10)0.0099 (8)
C20.0294 (10)0.0280 (10)0.0288 (11)0.0017 (8)0.0032 (8)0.0057 (8)
C30.0341 (11)0.0302 (11)0.0390 (13)0.0091 (9)0.0089 (9)0.0059 (9)
C40.0303 (11)0.0460 (13)0.0373 (13)0.0063 (10)0.0115 (9)0.0024 (10)
C50.0314 (10)0.0377 (11)0.0289 (11)0.0033 (9)0.0054 (8)0.0063 (9)
C60.0328 (11)0.0306 (10)0.0297 (11)0.0012 (8)0.0047 (8)0.0063 (9)
C70.0306 (11)0.0290 (10)0.0314 (11)0.0008 (8)0.0039 (8)0.0084 (8)
C80.0283 (10)0.0249 (10)0.0301 (11)0.0030 (8)0.0031 (8)0.0083 (8)
C90.0524 (16)0.0504 (15)0.0462 (16)0.0097 (12)0.0098 (12)0.0079 (12)
C100.0619 (18)0.0567 (17)0.0521 (18)0.0143 (14)0.0035 (13)0.0025 (14)
Geometric parameters (Å, º) top
Br1—C51.898 (2)N3—H3B0.8600
S1—C81.698 (2)C3—C41.383 (3)
S2—C101.780 (3)N3—H3A0.8600
S2—O21.508 (2)C4—C51.384 (3)
S2—C91.776 (3)C5—C61.373 (3)
O1—C21.367 (3)C3—H30.9300
N1—N21.384 (3)C4—H40.9300
N1—C71.278 (3)C6—H60.9300
O1—H10.8200C7—H70.9300
N2—C81.338 (3)C9—H9A0.9600
N3—C81.324 (3)C9—H9B0.9600
C1—C71.449 (3)C9—H9C0.9600
C1—C21.405 (3)C10—H10A0.9600
C1—C61.404 (3)C10—H10B0.9600
C2—C31.385 (3)C10—H10C0.9600
N2—H20.8600
C9—S2—C1097.89 (14)S1—C8—N2118.69 (16)
O2—S2—C9105.88 (12)N2—C8—N3118.41 (19)
O2—S2—C10105.84 (12)S1—C8—N3122.90 (18)
N2—N1—C7114.45 (19)C2—C3—H3120.00
C2—O1—H1110.00C4—C3—H3120.00
N1—N2—C8119.44 (18)C5—C4—H4120.00
C2—C1—C7119.58 (19)C3—C4—H4120.00
C2—C1—C6118.62 (19)C1—C6—H6120.00
C6—C1—C7121.8 (2)C5—C6—H6120.00
O1—C2—C3122.0 (2)N1—C7—H7119.00
C1—C2—C3120.5 (2)C1—C7—H7119.00
N1—N2—H2120.00S2—C9—H9A109.00
C8—N2—H2120.00S2—C9—H9B110.00
O1—C2—C1117.53 (18)S2—C9—H9C109.00
H3A—N3—H3B120.00H9A—C9—H9B109.00
C2—C3—C4120.3 (2)H9A—C9—H9C109.00
C8—N3—H3B120.00H9B—C9—H9C109.00
C8—N3—H3A120.00S2—C10—H10A109.00
C3—C4—C5119.3 (2)S2—C10—H10B109.00
Br1—C5—C6119.57 (17)S2—C10—H10C109.00
Br1—C5—C4118.85 (17)H10A—C10—H10B109.00
C4—C5—C6121.6 (2)H10A—C10—H10C109.00
C1—C6—C5119.8 (2)H10B—C10—H10C109.00
N1—C7—C1121.2 (2)
C7—N1—N2—C8178.2 (2)C2—C1—C7—N1169.6 (2)
N2—N1—C7—C1178.29 (19)C6—C1—C7—N110.9 (3)
N1—N2—C8—S1178.26 (15)O1—C2—C3—C4178.3 (2)
N1—N2—C8—N31.7 (3)C1—C2—C3—C41.9 (3)
C6—C1—C2—O1178.65 (19)C2—C3—C4—C50.7 (4)
C6—C1—C2—C31.5 (3)C3—C4—C5—Br1179.52 (18)
C7—C1—C2—O11.9 (3)C3—C4—C5—C61.0 (4)
C7—C1—C2—C3178.0 (2)Br1—C5—C6—C1179.90 (16)
C2—C1—C6—C50.1 (3)C4—C5—C6—C11.4 (3)
C7—C1—C6—C5179.6 (2)
Hydrogen-bond geometry (Å, º) top
D—H···AD—HH···AD···AD—H···A
O1—H1···S1i0.822.403.1655 (17)157
N2—H2···O2ii0.862.102.897 (2)155
N3—H3A···O1iii0.862.373.048 (2)136
N3—H3A···N10.862.302.648 (3)104
N3—H3B···O2iv0.862.112.930 (3)160
C7—H7···O10.932.442.752 (3)100
C7—H7···O2ii0.932.533.315 (3)142
Symmetry codes: (i) x1, y+1, z; (ii) x+1, y, z; (iii) x, y1, z; (iv) x+1, y1, z.
 

Funding information

KB and PS thank the Department of Science and Technology (DST–SERB), grant No. SB/FT/CS-058/2013, New Delhi, India, for financial support.

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