organic compounds
3-(2-Hydroxyphenyl)-1-{(E)-[1-(pyrazin-2-yl)ethylidene]amino}thiourea monohydrate
aInternational Islamic University Malaysia (IIUM), PO Box 141, Kuantan, Malaysia, bSchool of Chemical Sciences and Food Technology, Faculty Science and Technology, Universiti Kebangsaan Malaysia, 43600 UKM Bangi, Selangor, Malaysia, and cDepartment of Chemistry, University of Malaya, 50603 Kuala Lumpur, Malaysia
*Correspondence e-mail: edward.tiekink@gmail.com
In the title compound, C13H13N5OS·H2O, the thiourea molecules closely resemble each other and are approximately planar; the dihedral angles formed between the terminal benzene rings are 7.88 (8) and 7.20 (8)°, respectively. The observed planarity correlates with the presence of bifurcated N—H⋯(O,N) hydrogen bonds. In the crystal, the molecules are connected into supramolecular double chains via a combination of N—H⋯S (linking the two independent molecules), O—H⋯O and O—H⋯N (linking dimeric aggregates into a supramolecular chain via hydroxy–water, water–water and water–pyrazine interactions) and O—H⋯S hydrogen bonds (connecting two chains). The chains are further connected by C—H⋯N and C—H⋯S interactions.
Related literature
For biological activity of thiourea derivatives, see: Venkatachalam et al. (2004). For related structures, see: Gunasekaran et al. (2010); Dzulkifli et al. (2011). For additional geometric analysis, see: Spek (2009).
Experimental
Crystal data
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Refinement
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Data collection: APEX2 (Bruker, 2008); cell SAINT (Bruker, 2008); data reduction: SAINT; program(s) used to solve structure: SHELXS97 (Sheldrick, 2008); program(s) used to refine structure: SHELXL97 (Sheldrick, 2008); molecular graphics: ORTEP-3 (Farrugia, 1997), DIAMOND (Brandenburg, 2006) and Qmol (Gans & Shalloway, 2001); software used to prepare material for publication: publCIF (Westrip, 2010).
Supporting information
10.1107/S1600536811010038/hg5012sup1.cif
contains datablocks global, I. DOI:Structure factors: contains datablock I. DOI: 10.1107/S1600536811010038/hg5012Isup2.hkl
The reaction of 2-acetylpyrazine with methyl hydrazinecarbodithioate (II) formed (E)-methyl-2-(1-(pyrazin-2-yl)ethylidene)hydrazinecarbodithioate (III). The condensation reaction of (III) with 2-phenolamine produced the title compound, (I), i.e. (E)-N-(2-hydroxyphenyl)-2-(1-(pyrazin-2- yl)ethylidene)hydrazinecarbothioamide (yield:73.3%, M.pt. 469—471 K).
Slow recrystallization of its butanol solution afforded yellow crystals of (I). Elemental anal. (calc.): C, 51.80 (51.13); H, 4.91 (4.95), N, 24.10 (22.94) %. FT—IR (νmax; cm-1): (O—H) 3459, (N—H) 3209, (C\b C) 3016, (CH3) 2925, (C═N) 1609, (C≐C aromatic) 1555, (C—N) 1366, (pyrazyl) 1162, (N —N) 1121 and (C═S) 1023.
Carbon-bound H-atoms were placed in calculated positions (C—H 0.95 to 0.98 Å) and were included in the 3 7 13) and (3 6 14) were omitted from the final refinement.
in the riding model approximation, with Uiso(H) set to 1.2 to 1.5Uequiv(C). The water-H and amine-H atoms were refined with the distance restraints O—H = 0.84±0.01 Å and N–H = 0.88±0.01 Å, and with Uiso(H) = yUequiv(parent atom); y = 1.5 for O, and 1.2 for N. In addition, each pair of water-H atoms were constrained to be separated by 1.39±0.02 Å. Owing to poor agreement, the reflections (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: SHELXL97 (Sheldrick, 2008); molecular graphics: ORTEP-3 (Farrugia, 1997), DIAMOND (Brandenburg, 2006) and Qmol (Gans & Shalloway, 2001); software used to prepare material for publication: publCIF (Westrip, 2010).Fig. 1. The molecular structures of the components defining the asymmetric unit of (I) showing the atom-labelling scheme and displacement ellipsoids at the 70% probability level. | |
Fig. 2. Overlay diagram showing the superimposition of the S1-containing molecule (red) with the S2-containing molecule (blue). | |
Fig. 3. Supramolecular chain in (I) mediated by O—H···O (orange), O—H···N (blue) and N—H···S (purple) hydrogen bonding shown as dashed lines. | |
Fig. 4. Supramolecular double chain in (I) whereby the chain in Fig. 3 is connected via O—H···S hydrogen bonds shown as green dashed lines. | |
Fig. 5. View in projection down the a axis of the crystal packing for (I). The C—H···N and C—H···S contacts are shown as pink dashed lines. |
C13H13N5OS·H2O | Z = 4 |
Mr = 305.36 | F(000) = 640 |
Triclinic, P1 | Dx = 1.428 Mg m−3 |
Hall symbol: -P 1 | Mo Kα radiation, λ = 0.71073 Å |
a = 7.9808 (5) Å | Cell parameters from 6288 reflections |
b = 11.7557 (8) Å | θ = 2.5–30.6° |
c = 16.4160 (11) Å | µ = 0.24 mm−1 |
α = 99.638 (1)° | T = 100 K |
β = 94.128 (1)° | Block, yellow |
γ = 109.200 (1)° | 0.18 × 0.14 × 0.11 mm |
V = 1420.54 (16) Å3 |
Bruker SMART APEX diffractometer | 6505 independent reflections |
Radiation source: fine-focus sealed tube | 5267 reflections with I > 2σ(I) |
Graphite monochromator | Rint = 0.031 |
ω scans | θmax = 27.5°, θmin = 1.3° |
Absorption correction: multi-scan (SADABS; Sheldrick, 1996) | h = −10→10 |
Tmin = 0.656, Tmax = 0.746 | k = −15→15 |
18244 measured reflections | l = −21→21 |
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)] = 0.035 | Hydrogen site location: inferred from neighbouring sites |
wR(F2) = 0.110 | H atoms treated by a mixture of independent and constrained refinement |
S = 1.04 | w = 1/[σ2(Fo2) + (0.0586P)2 + 0.4197P] where P = (Fo2 + 2Fc2)/3 |
6505 reflections | (Δ/σ)max = 0.001 |
411 parameters | Δρmax = 0.39 e Å−3 |
12 restraints | Δρmin = −0.30 e Å−3 |
C13H13N5OS·H2O | γ = 109.200 (1)° |
Mr = 305.36 | V = 1420.54 (16) Å3 |
Triclinic, P1 | Z = 4 |
a = 7.9808 (5) Å | Mo Kα radiation |
b = 11.7557 (8) Å | µ = 0.24 mm−1 |
c = 16.4160 (11) Å | T = 100 K |
α = 99.638 (1)° | 0.18 × 0.14 × 0.11 mm |
β = 94.128 (1)° |
Bruker SMART APEX diffractometer | 6505 independent reflections |
Absorption correction: multi-scan (SADABS; Sheldrick, 1996) | 5267 reflections with I > 2σ(I) |
Tmin = 0.656, Tmax = 0.746 | Rint = 0.031 |
18244 measured reflections |
R[F2 > 2σ(F2)] = 0.035 | 12 restraints |
wR(F2) = 0.110 | H atoms treated by a mixture of independent and constrained refinement |
S = 1.04 | Δρmax = 0.39 e Å−3 |
6505 reflections | Δρmin = −0.30 e Å−3 |
411 parameters |
Geometry. All s.u.'s (except the s.u. in the dihedral angle between two l.s. planes) are estimated using the full covariance matrix. The cell s.u.'s are taken into account individually in the estimation of s.u.'s in distances, angles and torsion angles; correlations between s.u.'s in cell parameters are only used when they are defined by crystal symmetry. An approximate (isotropic) treatment of cell s.u.'s is used for estimating s.u.'s involving l.s. planes. |
Refinement. Refinement of F2 against ALL reflections. The weighted R-factor wR and goodness of fit S are based on F2, conventional R-factors R are based on F, with F set to zero for negative F2. The threshold expression of F2 > 2σ(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 | ||
S1 | −0.09788 (5) | 0.17115 (3) | 0.34884 (2) | 0.02054 (11) | |
O1 | 0.19179 (14) | 0.50524 (9) | 0.62276 (6) | 0.0191 (2) | |
H1O | 0.223 (2) | 0.5485 (15) | 0.6707 (7) | 0.029* | |
N1 | 0.06763 (16) | 0.35848 (11) | 0.48035 (7) | 0.0160 (3) | |
H1N | 0.1553 (18) | 0.4298 (10) | 0.4942 (10) | 0.019* | |
N2 | 0.17706 (16) | 0.37485 (11) | 0.35765 (7) | 0.0155 (3) | |
H2N | 0.176 (2) | 0.3458 (15) | 0.3051 (6) | 0.019* | |
N3 | 0.30025 (16) | 0.48289 (11) | 0.40124 (7) | 0.0151 (2) | |
N4 | 0.63006 (17) | 0.80104 (11) | 0.55376 (8) | 0.0187 (3) | |
N5 | 0.65300 (16) | 0.74828 (11) | 0.38282 (8) | 0.0173 (3) | |
C1 | 0.04480 (19) | 0.40506 (13) | 0.62335 (9) | 0.0157 (3) | |
C2 | −0.0340 (2) | 0.38248 (14) | 0.69423 (9) | 0.0193 (3) | |
H2 | 0.0134 | 0.4390 | 0.7459 | 0.023* | |
C3 | −0.1821 (2) | 0.27734 (14) | 0.68991 (9) | 0.0201 (3) | |
H3 | −0.2360 | 0.2619 | 0.7386 | 0.024* | |
C4 | −0.2515 (2) | 0.19499 (14) | 0.61453 (9) | 0.0194 (3) | |
H4 | −0.3522 | 0.1228 | 0.6119 | 0.023* | |
C5 | −0.17480 (19) | 0.21715 (13) | 0.54249 (9) | 0.0175 (3) | |
H5 | −0.2234 | 0.1606 | 0.4910 | 0.021* | |
C6 | −0.02660 (19) | 0.32252 (13) | 0.54647 (8) | 0.0148 (3) | |
C7 | 0.05216 (19) | 0.30635 (13) | 0.39999 (9) | 0.0153 (3) | |
C8 | 0.42014 (19) | 0.55019 (13) | 0.36458 (8) | 0.0147 (3) | |
C9 | 0.4445 (2) | 0.52302 (14) | 0.27451 (8) | 0.0187 (3) | |
H9A | 0.4149 | 0.4342 | 0.2557 | 0.028* | |
H9B | 0.5692 | 0.5659 | 0.2680 | 0.028* | |
H9C | 0.3653 | 0.5512 | 0.2410 | 0.028* | |
C10 | 0.53888 (18) | 0.66744 (13) | 0.41919 (9) | 0.0146 (3) | |
C11 | 0.52873 (19) | 0.69459 (13) | 0.50503 (9) | 0.0167 (3) | |
H11 | 0.4468 | 0.6349 | 0.5290 | 0.020* | |
C12 | 0.7435 (2) | 0.88265 (14) | 0.51665 (9) | 0.0201 (3) | |
H12 | 0.8179 | 0.9601 | 0.5491 | 0.024* | |
C13 | 0.7538 (2) | 0.85604 (14) | 0.43227 (10) | 0.0210 (3) | |
H13 | 0.8353 | 0.9162 | 0.4084 | 0.025* | |
S2 | 1.07562 (5) | 1.30651 (3) | 0.14135 (2) | 0.01929 (10) | |
O2 | 0.78422 (15) | 0.96845 (10) | −0.13104 (6) | 0.0210 (2) | |
H2O | 0.746 (2) | 0.9237 (16) | −0.1782 (7) | 0.032* | |
N6 | 0.91194 (16) | 1.11695 (11) | 0.01014 (7) | 0.0157 (2) | |
H6N | 0.8277 (18) | 1.0449 (10) | −0.0021 (10) | 0.019* | |
N7 | 0.80922 (16) | 1.09918 (11) | 0.13407 (7) | 0.0157 (3) | |
H7N | 0.829 (2) | 1.1201 (15) | 0.1885 (6) | 0.019* | |
N8 | 0.68925 (16) | 0.98922 (10) | 0.09106 (7) | 0.0150 (2) | |
N9 | 0.35318 (18) | 0.67259 (12) | −0.06046 (8) | 0.0230 (3) | |
N10 | 0.34629 (17) | 0.72072 (12) | 0.11192 (8) | 0.0194 (3) | |
C14 | 0.92330 (19) | 1.07099 (13) | −0.13441 (9) | 0.0164 (3) | |
C15 | 0.9944 (2) | 1.09597 (14) | −0.20668 (9) | 0.0201 (3) | |
H15 | 0.9453 | 1.0394 | −0.2581 | 0.024* | |
C16 | 1.1376 (2) | 1.20380 (14) | −0.20400 (10) | 0.0212 (3) | |
H16 | 1.1856 | 1.2213 | −0.2536 | 0.025* | |
C17 | 1.2101 (2) | 1.28569 (14) | −0.12866 (10) | 0.0212 (3) | |
H17 | 1.3081 | 1.3591 | −0.1271 | 0.025* | |
C18 | 1.1413 (2) | 1.26184 (14) | −0.05531 (9) | 0.0185 (3) | |
H18 | 1.1926 | 1.3182 | −0.0039 | 0.022* | |
C19 | 0.99712 (19) | 1.15496 (13) | −0.05791 (8) | 0.0154 (3) | |
C20 | 0.93076 (18) | 1.16914 (13) | 0.09055 (8) | 0.0143 (3) | |
C21 | 0.57203 (19) | 0.92136 (13) | 0.12853 (9) | 0.0157 (3) | |
C22 | 0.5460 (2) | 0.94878 (14) | 0.21817 (9) | 0.0215 (3) | |
H22A | 0.5889 | 1.0380 | 0.2386 | 0.032* | |
H22B | 0.6137 | 0.9122 | 0.2512 | 0.032* | |
H22C | 0.4185 | 0.9141 | 0.2233 | 0.032* | |
C23 | 0.45390 (19) | 0.80368 (13) | 0.07433 (9) | 0.0158 (3) | |
C24 | 0.4564 (2) | 0.77884 (14) | −0.01203 (9) | 0.0200 (3) | |
H24 | 0.5342 | 0.8397 | −0.0367 | 0.024* | |
C25 | 0.2466 (2) | 0.58978 (14) | −0.02229 (10) | 0.0238 (3) | |
H25 | 0.1707 | 0.5126 | −0.0547 | 0.029* | |
C26 | 0.2442 (2) | 0.61369 (14) | 0.06273 (10) | 0.0227 (3) | |
H26 | 0.1674 | 0.5520 | 0.0872 | 0.027* | |
O1W | 0.29296 (15) | 0.66684 (11) | 0.76876 (7) | 0.0240 (3) | |
H1W | 0.320 (3) | 0.6634 (19) | 0.8187 (7) | 0.036* | |
H2W | 0.209 (2) | 0.6932 (18) | 0.7662 (11) | 0.036* | |
O2W | 0.62751 (16) | 0.80846 (11) | 0.72836 (7) | 0.0264 (3) | |
H4W | 0.5218 (15) | 0.7672 (16) | 0.7342 (11) | 0.040* | |
H3W | 0.634 (3) | 0.8147 (19) | 0.6783 (7) | 0.040* |
U11 | U22 | U33 | U12 | U13 | U23 | |
S1 | 0.0241 (2) | 0.01728 (19) | 0.01090 (18) | −0.00349 (15) | 0.00142 (14) | −0.00018 (13) |
O1 | 0.0207 (5) | 0.0182 (5) | 0.0111 (5) | −0.0003 (4) | 0.0027 (4) | −0.0024 (4) |
N1 | 0.0165 (6) | 0.0149 (6) | 0.0117 (6) | −0.0001 (5) | 0.0033 (5) | 0.0003 (5) |
N2 | 0.0180 (6) | 0.0140 (6) | 0.0091 (5) | −0.0001 (5) | 0.0020 (5) | −0.0006 (5) |
N3 | 0.0156 (6) | 0.0141 (6) | 0.0125 (6) | 0.0027 (5) | 0.0002 (5) | 0.0000 (5) |
N4 | 0.0196 (6) | 0.0176 (6) | 0.0157 (6) | 0.0040 (5) | −0.0003 (5) | 0.0009 (5) |
N5 | 0.0162 (6) | 0.0180 (6) | 0.0154 (6) | 0.0026 (5) | 0.0029 (5) | 0.0038 (5) |
C1 | 0.0171 (7) | 0.0164 (7) | 0.0136 (7) | 0.0060 (5) | 0.0022 (5) | 0.0025 (5) |
C2 | 0.0243 (8) | 0.0221 (7) | 0.0125 (7) | 0.0089 (6) | 0.0043 (6) | 0.0033 (6) |
C3 | 0.0241 (8) | 0.0241 (8) | 0.0159 (7) | 0.0106 (6) | 0.0090 (6) | 0.0075 (6) |
C4 | 0.0191 (7) | 0.0189 (7) | 0.0211 (7) | 0.0054 (6) | 0.0078 (6) | 0.0064 (6) |
C5 | 0.0181 (7) | 0.0181 (7) | 0.0144 (7) | 0.0050 (6) | 0.0022 (5) | 0.0006 (6) |
C6 | 0.0175 (7) | 0.0168 (7) | 0.0113 (6) | 0.0070 (6) | 0.0043 (5) | 0.0033 (5) |
C7 | 0.0161 (7) | 0.0162 (7) | 0.0127 (7) | 0.0047 (5) | 0.0012 (5) | 0.0025 (5) |
C8 | 0.0165 (7) | 0.0154 (7) | 0.0113 (6) | 0.0049 (5) | 0.0013 (5) | 0.0019 (5) |
C9 | 0.0213 (7) | 0.0202 (7) | 0.0112 (7) | 0.0034 (6) | 0.0034 (6) | 0.0017 (6) |
C10 | 0.0138 (7) | 0.0158 (7) | 0.0140 (7) | 0.0048 (5) | 0.0017 (5) | 0.0033 (5) |
C11 | 0.0189 (7) | 0.0157 (7) | 0.0133 (7) | 0.0035 (6) | 0.0007 (5) | 0.0027 (5) |
C12 | 0.0202 (7) | 0.0152 (7) | 0.0200 (7) | 0.0015 (6) | 0.0000 (6) | 0.0010 (6) |
C13 | 0.0192 (7) | 0.0184 (7) | 0.0211 (8) | 0.0008 (6) | 0.0017 (6) | 0.0046 (6) |
S2 | 0.0241 (2) | 0.01506 (18) | 0.01128 (18) | −0.00166 (14) | 0.00061 (14) | 0.00055 (13) |
O2 | 0.0234 (6) | 0.0209 (5) | 0.0113 (5) | 0.0005 (4) | 0.0013 (4) | −0.0016 (4) |
N6 | 0.0174 (6) | 0.0131 (6) | 0.0116 (6) | −0.0005 (5) | 0.0031 (5) | 0.0001 (5) |
N7 | 0.0198 (6) | 0.0135 (6) | 0.0093 (5) | 0.0010 (5) | 0.0018 (5) | −0.0003 (5) |
N8 | 0.0170 (6) | 0.0118 (6) | 0.0135 (6) | 0.0026 (5) | 0.0008 (5) | 0.0004 (4) |
N9 | 0.0229 (7) | 0.0214 (7) | 0.0180 (6) | 0.0018 (5) | 0.0023 (5) | −0.0022 (5) |
N10 | 0.0179 (6) | 0.0185 (6) | 0.0187 (6) | 0.0013 (5) | 0.0022 (5) | 0.0057 (5) |
C14 | 0.0183 (7) | 0.0169 (7) | 0.0150 (7) | 0.0073 (6) | 0.0030 (5) | 0.0029 (6) |
C15 | 0.0251 (8) | 0.0255 (8) | 0.0117 (7) | 0.0116 (6) | 0.0033 (6) | 0.0032 (6) |
C16 | 0.0264 (8) | 0.0259 (8) | 0.0181 (7) | 0.0138 (7) | 0.0106 (6) | 0.0097 (6) |
C17 | 0.0223 (8) | 0.0212 (7) | 0.0225 (8) | 0.0076 (6) | 0.0088 (6) | 0.0079 (6) |
C18 | 0.0196 (7) | 0.0189 (7) | 0.0167 (7) | 0.0057 (6) | 0.0052 (6) | 0.0034 (6) |
C19 | 0.0187 (7) | 0.0182 (7) | 0.0110 (6) | 0.0079 (6) | 0.0037 (5) | 0.0035 (5) |
C20 | 0.0158 (7) | 0.0146 (6) | 0.0114 (6) | 0.0042 (5) | 0.0015 (5) | 0.0021 (5) |
C21 | 0.0173 (7) | 0.0167 (7) | 0.0127 (7) | 0.0054 (6) | 0.0019 (5) | 0.0029 (5) |
C22 | 0.0231 (8) | 0.0217 (8) | 0.0136 (7) | 0.0011 (6) | 0.0044 (6) | 0.0003 (6) |
C23 | 0.0150 (7) | 0.0160 (7) | 0.0153 (7) | 0.0040 (5) | 0.0018 (5) | 0.0027 (5) |
C24 | 0.0202 (7) | 0.0194 (7) | 0.0154 (7) | 0.0015 (6) | 0.0021 (6) | 0.0006 (6) |
C25 | 0.0215 (8) | 0.0166 (7) | 0.0264 (8) | 0.0008 (6) | 0.0015 (6) | −0.0016 (6) |
C26 | 0.0194 (7) | 0.0188 (7) | 0.0248 (8) | −0.0001 (6) | 0.0017 (6) | 0.0055 (6) |
O1W | 0.0261 (6) | 0.0278 (6) | 0.0161 (5) | 0.0115 (5) | −0.0008 (5) | −0.0039 (5) |
O2W | 0.0304 (6) | 0.0284 (6) | 0.0128 (5) | 0.0032 (5) | 0.0014 (5) | −0.0014 (5) |
S1—C7 | 1.6797 (14) | O2—H2O | 0.832 (9) |
O1—C1 | 1.3638 (17) | N6—C20 | 1.3347 (17) |
O1—H1O | 0.834 (9) | N6—C19 | 1.4094 (18) |
N1—C7 | 1.3370 (18) | N6—H6N | 0.871 (9) |
N1—C6 | 1.4087 (18) | N7—N8 | 1.3671 (16) |
N1—H1N | 0.878 (9) | N7—C20 | 1.3782 (18) |
N2—N3 | 1.3656 (16) | N7—H7N | 0.874 (9) |
N2—C7 | 1.3727 (18) | N8—C21 | 1.2830 (18) |
N2—H2N | 0.872 (9) | N9—C24 | 1.3294 (19) |
N3—C8 | 1.2837 (18) | N9—C25 | 1.342 (2) |
N4—C11 | 1.3289 (18) | N10—C26 | 1.3379 (19) |
N4—C12 | 1.3471 (19) | N10—C23 | 1.3403 (18) |
N5—C10 | 1.3372 (18) | C14—C15 | 1.386 (2) |
N5—C13 | 1.3425 (19) | C14—C19 | 1.4122 (19) |
C1—C2 | 1.385 (2) | C15—C16 | 1.392 (2) |
C1—C6 | 1.4078 (19) | C15—H15 | 0.9500 |
C2—C3 | 1.389 (2) | C16—C17 | 1.387 (2) |
C2—H2 | 0.9500 | C16—H16 | 0.9500 |
C3—C4 | 1.387 (2) | C17—C18 | 1.392 (2) |
C3—H3 | 0.9500 | C17—H17 | 0.9500 |
C4—C5 | 1.394 (2) | C18—C19 | 1.389 (2) |
C4—H4 | 0.9500 | C18—H18 | 0.9500 |
C5—C6 | 1.391 (2) | C21—C23 | 1.4844 (19) |
C5—H5 | 0.9500 | C21—C22 | 1.4972 (19) |
C8—C10 | 1.4854 (19) | C22—H22A | 0.9800 |
C8—C9 | 1.5000 (19) | C22—H22B | 0.9800 |
C9—H9A | 0.9800 | C22—H22C | 0.9800 |
C9—H9B | 0.9800 | C23—C24 | 1.402 (2) |
C9—H9C | 0.9800 | C24—H24 | 0.9500 |
C10—C11 | 1.4061 (19) | C25—C26 | 1.380 (2) |
C11—H11 | 0.9500 | C25—H25 | 0.9500 |
C12—C13 | 1.383 (2) | C26—H26 | 0.9500 |
C12—H12 | 0.9500 | O1W—H1W | 0.845 (9) |
C13—H13 | 0.9500 | O1W—H2W | 0.829 (9) |
S2—C20 | 1.6799 (14) | O2W—H4W | 0.845 (9) |
O2—C14 | 1.3562 (18) | O2W—H3W | 0.842 (9) |
C1—O1—H1O | 109.1 (13) | C20—N6—C19 | 133.48 (12) |
C7—N1—C6 | 133.34 (12) | C20—N6—H6N | 111.9 (11) |
C7—N1—H1N | 112.4 (11) | C19—N6—H6N | 114.6 (11) |
C6—N1—H1N | 114.2 (11) | N8—N7—C20 | 117.62 (11) |
N3—N2—C7 | 117.93 (11) | N8—N7—H7N | 123.7 (11) |
N3—N2—H2N | 123.7 (11) | C20—N7—H7N | 117.2 (11) |
C7—N2—H2N | 118.4 (11) | C21—N8—N7 | 120.02 (12) |
C8—N3—N2 | 120.36 (12) | C24—N9—C25 | 116.48 (13) |
C11—N4—C12 | 116.55 (13) | C26—N10—C23 | 116.37 (13) |
C10—N5—C13 | 116.46 (13) | O2—C14—C15 | 124.21 (13) |
O1—C1—C2 | 123.55 (13) | O2—C14—C19 | 115.96 (12) |
O1—C1—C6 | 116.29 (12) | C15—C14—C19 | 119.83 (14) |
C2—C1—C6 | 120.16 (13) | C14—C15—C16 | 120.11 (14) |
C1—C2—C3 | 120.07 (14) | C14—C15—H15 | 119.9 |
C1—C2—H2 | 120.0 | C16—C15—H15 | 119.9 |
C3—C2—H2 | 120.0 | C17—C16—C15 | 119.82 (14) |
C4—C3—C2 | 119.96 (14) | C17—C16—H16 | 120.1 |
C4—C3—H3 | 120.0 | C15—C16—H16 | 120.1 |
C2—C3—H3 | 120.0 | C16—C17—C18 | 120.92 (15) |
C3—C4—C5 | 120.61 (14) | C16—C17—H17 | 119.5 |
C3—C4—H4 | 119.7 | C18—C17—H17 | 119.5 |
C5—C4—H4 | 119.7 | C19—C18—C17 | 119.41 (14) |
C6—C5—C4 | 119.63 (13) | C19—C18—H18 | 120.3 |
C6—C5—H5 | 120.2 | C17—C18—H18 | 120.3 |
C4—C5—H5 | 120.2 | C18—C19—N6 | 126.65 (13) |
C5—C6—C1 | 119.56 (13) | C18—C19—C14 | 119.91 (13) |
C5—C6—N1 | 127.05 (13) | N6—C19—C14 | 113.44 (12) |
C1—C6—N1 | 113.39 (12) | N6—C20—N7 | 113.11 (12) |
N1—C7—N2 | 113.40 (12) | N6—C20—S2 | 128.34 (11) |
N1—C7—S1 | 127.44 (11) | N7—C20—S2 | 118.52 (10) |
N2—C7—S1 | 119.15 (10) | N8—C21—C23 | 113.87 (12) |
N3—C8—C10 | 114.04 (12) | N8—C21—C22 | 127.09 (13) |
N3—C8—C9 | 126.55 (13) | C23—C21—C22 | 119.03 (12) |
C10—C8—C9 | 119.37 (12) | C21—C22—H22A | 109.5 |
C8—C9—H9A | 109.5 | C21—C22—H22B | 109.5 |
C8—C9—H9B | 109.5 | H22A—C22—H22B | 109.5 |
H9A—C9—H9B | 109.5 | C21—C22—H22C | 109.5 |
C8—C9—H9C | 109.5 | H22A—C22—H22C | 109.5 |
H9A—C9—H9C | 109.5 | H22B—C22—H22C | 109.5 |
H9B—C9—H9C | 109.5 | N10—C23—C24 | 121.20 (13) |
N5—C10—C11 | 121.07 (13) | N10—C23—C21 | 116.94 (12) |
N5—C10—C8 | 117.13 (12) | C24—C23—C21 | 121.86 (13) |
C11—C10—C8 | 121.77 (13) | N9—C24—C23 | 121.95 (14) |
N4—C11—C10 | 122.14 (13) | N9—C24—H24 | 119.0 |
N4—C11—H11 | 118.9 | C23—C24—H24 | 119.0 |
C10—C11—H11 | 118.9 | N9—C25—C26 | 121.75 (14) |
N4—C12—C13 | 121.38 (14) | N9—C25—H25 | 119.1 |
N4—C12—H12 | 119.3 | C26—C25—H25 | 119.1 |
C13—C12—H12 | 119.3 | N10—C26—C25 | 122.24 (14) |
N5—C13—C12 | 122.38 (14) | N10—C26—H26 | 118.9 |
N5—C13—H13 | 118.8 | C25—C26—H26 | 118.9 |
C12—C13—H13 | 118.8 | H1W—O1W—H2W | 109.0 (16) |
C14—O2—H2O | 111.0 (14) | H4W—O2W—H3W | 110.5 (16) |
C7—N2—N3—C8 | 179.84 (13) | C20—N7—N8—C21 | −179.19 (13) |
O1—C1—C2—C3 | −179.12 (13) | O2—C14—C15—C16 | −179.93 (14) |
C6—C1—C2—C3 | 0.9 (2) | C19—C14—C15—C16 | −0.3 (2) |
C1—C2—C3—C4 | −0.1 (2) | C14—C15—C16—C17 | 0.6 (2) |
C2—C3—C4—C5 | −0.6 (2) | C15—C16—C17—C18 | −0.1 (2) |
C3—C4—C5—C6 | 0.4 (2) | C16—C17—C18—C19 | −0.6 (2) |
C4—C5—C6—C1 | 0.4 (2) | C17—C18—C19—N6 | 179.92 (14) |
C4—C5—C6—N1 | 179.51 (14) | C17—C18—C19—C14 | 0.8 (2) |
O1—C1—C6—C5 | 178.95 (13) | C20—N6—C19—C18 | 5.0 (3) |
C2—C1—C6—C5 | −1.1 (2) | C20—N6—C19—C14 | −175.84 (15) |
O1—C1—C6—N1 | −0.25 (18) | O2—C14—C19—C18 | 179.25 (13) |
C2—C1—C6—N1 | 179.70 (13) | C15—C14—C19—C18 | −0.4 (2) |
C7—N1—C6—C5 | −2.7 (3) | O2—C14—C19—N6 | 0.05 (18) |
C7—N1—C6—C1 | 176.41 (15) | C15—C14—C19—N6 | −179.61 (13) |
C6—N1—C7—N2 | −179.14 (14) | C19—N6—C20—N7 | 176.62 (14) |
C6—N1—C7—S1 | 0.5 (2) | C19—N6—C20—S2 | −1.4 (2) |
N3—N2—C7—N1 | 1.30 (19) | N8—N7—C20—N6 | 0.04 (18) |
N3—N2—C7—S1 | −178.38 (10) | N8—N7—C20—S2 | 178.23 (10) |
N2—N3—C8—C10 | 177.27 (12) | N7—N8—C21—C23 | −178.68 (12) |
N2—N3—C8—C9 | −0.6 (2) | N7—N8—C21—C22 | 0.9 (2) |
C13—N5—C10—C11 | −0.9 (2) | C26—N10—C23—C24 | 0.7 (2) |
C13—N5—C10—C8 | 177.13 (13) | C26—N10—C23—C21 | −178.17 (13) |
N3—C8—C10—N5 | −172.44 (13) | N8—C21—C23—N10 | 170.53 (13) |
C9—C8—C10—N5 | 5.6 (2) | C22—C21—C23—N10 | −9.1 (2) |
N3—C8—C10—C11 | 5.6 (2) | N8—C21—C23—C24 | −8.3 (2) |
C9—C8—C10—C11 | −176.37 (13) | C22—C21—C23—C24 | 172.12 (14) |
C12—N4—C11—C10 | 0.2 (2) | C25—N9—C24—C23 | −0.3 (2) |
N5—C10—C11—N4 | 0.4 (2) | N10—C23—C24—N9 | −0.1 (2) |
C8—C10—C11—N4 | −177.57 (13) | C21—C23—C24—N9 | 178.71 (14) |
C11—N4—C12—C13 | −0.3 (2) | C24—N9—C25—C26 | 0.0 (2) |
C10—N5—C13—C12 | 0.9 (2) | C23—N10—C26—C25 | −0.9 (2) |
N4—C12—C13—N5 | −0.2 (2) | N9—C25—C26—N10 | 0.6 (3) |
D—H···A | D—H | H···A | D···A | D—H···A |
N1—H1n···O1 | 0.88 (1) | 2.11 (2) | 2.5720 (15) | 112 (1) |
N1—H1n···N3 | 0.88 (1) | 2.04 (2) | 2.5435 (18) | 116 (1) |
N6—H6n···O2 | 0.87 (1) | 2.11 (2) | 2.5676 (15) | 112 (1) |
N6—H6n···N8 | 0.87 (1) | 2.02 (2) | 2.5358 (17) | 117 (1) |
O1—H1o···O1w | 0.83 (1) | 1.86 (1) | 2.6820 (15) | 170 (2) |
O2—H2o···O2wi | 0.83 (1) | 1.83 (1) | 2.6481 (16) | 169 (2) |
O1w—H1w···N9ii | 0.84 (1) | 1.96 (1) | 2.7958 (17) | 169 (2) |
O1w—H2w···S2iii | 0.83 (2) | 2.82 (2) | 3.4648 (13) | 136 (2) |
O2w—H3w···N4 | 0.84 (1) | 2.02 (1) | 2.8547 (17) | 171 (2) |
O2w—H4w···O1w | 0.85 (2) | 2.00 (2) | 2.8357 (18) | 169 (2) |
N2—H2n···S2iv | 0.87 (1) | 2.67 (1) | 3.4802 (12) | 156 (1) |
N7—H7n···S1v | 0.87 (1) | 2.58 (1) | 3.4508 (12) | 176 (2) |
C16—H16···N5vi | 0.95 | 2.58 | 3.517 (2) | 172 |
C22—H22a···S1v | 0.98 | 2.79 | 3.4454 (16) | 125 |
Symmetry codes: (i) x, y, z−1; (ii) x, y, z+1; (iii) −x+1, −y+2, −z+1; (iv) x−1, y−1, z; (v) x+1, y+1, z; (vi) −x+2, −y+2, −z. |
Experimental details
Crystal data | |
Chemical formula | C13H13N5OS·H2O |
Mr | 305.36 |
Crystal system, space group | Triclinic, P1 |
Temperature (K) | 100 |
a, b, c (Å) | 7.9808 (5), 11.7557 (8), 16.4160 (11) |
α, β, γ (°) | 99.638 (1), 94.128 (1), 109.200 (1) |
V (Å3) | 1420.54 (16) |
Z | 4 |
Radiation type | Mo Kα |
µ (mm−1) | 0.24 |
Crystal size (mm) | 0.18 × 0.14 × 0.11 |
Data collection | |
Diffractometer | Bruker SMART APEX diffractometer |
Absorption correction | Multi-scan (SADABS; Sheldrick, 1996) |
Tmin, Tmax | 0.656, 0.746 |
No. of measured, independent and observed [I > 2σ(I)] reflections | 18244, 6505, 5267 |
Rint | 0.031 |
(sin θ/λ)max (Å−1) | 0.650 |
Refinement | |
R[F2 > 2σ(F2)], wR(F2), S | 0.035, 0.110, 1.04 |
No. of reflections | 6505 |
No. of parameters | 411 |
No. of restraints | 12 |
H-atom treatment | H atoms treated by a mixture of independent and constrained refinement |
Δρmax, Δρmin (e Å−3) | 0.39, −0.30 |
Computer programs: APEX2 (Bruker, 2008), SAINT (Bruker, 2008), SHELXS97 (Sheldrick, 2008), SHELXL97 (Sheldrick, 2008), ORTEP-3 (Farrugia, 1997), DIAMOND (Brandenburg, 2006) and Qmol (Gans & Shalloway, 2001), publCIF (Westrip, 2010).
D—H···A | D—H | H···A | D···A | D—H···A |
N1—H1n···O1 | 0.878 (13) | 2.107 (16) | 2.5720 (15) | 112.3 (12) |
N1—H1n···N3 | 0.878 (13) | 2.038 (15) | 2.5435 (18) | 115.5 (13) |
N6—H6n···O2 | 0.871 (12) | 2.112 (16) | 2.5676 (15) | 111.9 (12) |
N6—H6n···N8 | 0.871 (12) | 2.023 (15) | 2.5358 (17) | 116.7 (13) |
O1—H1o···O1w | 0.833 (12) | 1.857 (13) | 2.6820 (15) | 170.3 (16) |
O2—H2o···O2wi | 0.833 (13) | 1.826 (14) | 2.6481 (16) | 168.9 (17) |
O1w—H1w···N9ii | 0.844 (13) | 1.962 (12) | 2.7958 (17) | 169 (2) |
O1w—H2w···S2iii | 0.827 (18) | 2.822 (18) | 3.4648 (13) | 136.0 (16) |
O2w—H3w···N4 | 0.841 (13) | 2.021 (12) | 2.8547 (17) | 171 (2) |
O2w—H4w···O1w | 0.845 (15) | 2.001 (16) | 2.8357 (18) | 169.1 (16) |
N2—H2n···S2iv | 0.871 (10) | 2.667 (10) | 3.4802 (12) | 155.9 (14) |
N7—H7n···S1v | 0.874 (10) | 2.579 (10) | 3.4508 (12) | 175.6 (15) |
C16—H16···N5vi | 0.95 | 2.58 | 3.517 (2) | 172 |
C22—H22a···S1v | 0.98 | 2.79 | 3.4454 (16) | 125 |
Symmetry codes: (i) x, y, z−1; (ii) x, y, z+1; (iii) −x+1, −y+2, −z+1; (iv) x−1, y−1, z; (v) x+1, y+1, z; (vi) −x+2, −y+2, −z. |
Footnotes
‡Additional correspondence author, e-mail: farina@ukm.my.
Acknowledgements
We thank to University Kebangsaan Malaysia, the International Islamic University Malaysia and the Ministry of Higher Education, Malaysia, for supporting this research through grant GUP-NBT-08–27-112. The authors also thank the University of Malaya for support of the crystallographic facility and acknowledge an UMRG grant (RG125/10AFR).
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.
Thiourea derivatives have biological potential (Venkatachalam et al., 2004) and attract continuing structural studies (Gunasekaran et al., 2010; Dzulkifli et al., 2011).
The title compound (I), Fig. 1, features two independent thiourea derivatives and two water molecules of crystallization in the asymmetric unit. As seen from the overlay diagram, Fig. 2, there are small differences between the independent thiourea molecules. These relate to the relative orientations of the terminal benzene rings; the r.m.s. deviation of bond distances = 0.0032 Å (Spek, 2009). The similarity between the molecules is seen in the dihedral angle formed between the rings = 7.88 (8) ° for the S1-containing molecule and 7.20 (8) ° for the other. The planarity of each molecule is readily explained in terms of bifurcated intramolecular N—H···O,N hydrogen bonds, Table 1.
The most prominent feature of the crystal packing is the formation of supramolecular double chains along [111]. The two molecules comprising the asymmetric unit are connected via an eight-membered {···HNC═S}2 synthon and the resulting dimeric aggregates are connected by two molecules of water via a sequence of O—H···O hydrogen bonds. Thus, the hydroxyl group of one molecule is connected to a water molecule which hydrogen bonds to the second water molecule which in turn links the second hydroxyl group. Hydrogen bonds between the water molecules and pyrazine-N atoms close two fused 16-membered {···HOH···NC3N2CNC2OH···O} synthons. This arrangement is stabilized by the intramolecular interactions outlined above. The result is a supramolecular chain, Fig. 3. Pairs of chains are linked via water-O—H···S hydrogen bonds leading to a double chain, Fig. 4. The chains are consolidated in the crystal packing by C—H···N and C—H···S interactions, Table 1 and Fig. 5.