organic compounds
of 2′-hydroxyacetophenone 4-methylthiosemicarbazide
aDepartment of Chemistry, Universiti Putra Malaysia, 43400 Serdang, Malaysia, and bDepartment of Chemistry, University of Malaya, 50603 Kuala Lumpur, Malaysia
*Correspondence e-mail: thahira@upm.edu.my
In the organic molecule of the title hydrate, C11H15N3OS·H2O, {systematic name: 3-ethyl-1-{(E)-[1-(2-hydroxyphenyl)ethylidene]amino}thiourea monohydrate}, a dihedral angle of 5.39 (2)° is formed between the hydroxybenzene ring and the non-H atoms comprising the side chain (r.m.s. deviation = 0.0625 Å), with the major deviation from planarity noted for the terminal ethyl group [the C—N—C—C torsion angle = −172.17 (13)°]. The N—H H atoms are syn and an intramolecular hydroxy–imine O—H⋯N hydrogen bond is noted. In the crystal, the N-bonded H atoms form hydrogen bonds to symmetry-related water molecules, and the latter form donor interactions with the hydroxy O atom and with a hydroxybenzene ring, forming a O—H⋯π interaction. The hydrogen bonding leads to supramolecular tubes aligned along the b axis. The tubes are connected into layers via C—H⋯O interactions, and these stack along the c axis with no directional interactions between them.
CCDC reference: 1053189
1. Related literature
For background to thiosemicarbazones and their coordination chemistry, see: Mazlan et al. (2014). The conformational flexibility in these molecules is reflected in the structure of the 4-methyl derivative where one molecule comprising the is approximately planar and the other exhibits a clear twist between the hydroxybenzene and side chain, and in the structure of the 6-methoxy derivative where these residues are almost normal to each other, see: Anderson et al. (2012, 2014). For synthesis and methodology, see: Omar et al. (2014).
2. Experimental
2.1. Crystal data
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2.3. Refinement
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Data collection: CrysAlis PRO (Agilent, 2011); cell CrysAlis PRO; data reduction: CrysAlis PRO; program(s) used to solve structure: SHELXS97 (Sheldrick, 2015); program(s) used to refine structure: SHELXL2014 (Sheldrick, 2015); molecular graphics: ORTEP-3 for Windows (Farrugia, 2012) and DIAMOND (Brandenburg, 2006); software used to prepare material for publication: publCIF (Westrip, 2010).
Supporting information
CCDC reference: 1053189
10.1107/S2056989015004958/hb7380sup1.cif
contains datablocks 1, I. DOI:Structure factors: contains datablock I. DOI: 10.1107/S2056989015004958/hb7380Isup2.hkl
Supporting information file. DOI: 10.1107/S2056989015004958/hb7380Isup3.cml
4-Methyl-3-thiosemicarbazide (0.02 mol) was dissolved in hot ethanol (95%; 40 ml). A solution of 0.02 mol of 2'-hydroxyacetophenone was added drop-wise into the first solution. The mixture was heated and stirred to reduce the volume to half of its initial volume. Then, it was allowed to stand at room temperature until a white crystalline precipitate formed. The precipitate was then collected and recrystallized from ethanol and dried over silica gel. Colourless crystals were obtained from the ethanolic solution. Yield: 92%. M.pt: 116 °C. Anal. Found (Calc): C: 56.1 (55.7); H: 5.9 (6.4); N: 18.5 (17.7).
Carbon-bound H-atoms were placed in calculated positions (C—H = 0.95 to 0.99 Å) and were included in the
in the riding model approximation with Uiso(H) = 1.2–1.5Ueq(C). The O—H H atoms were refined with O—H = 0.84±0.01 Å, and with Uiso(H) = 1.5Ueq(O). The N—H H atoms were refined similarly with N—H = 0.88±0.01 Å, and with Uiso(H) = 1.2Ueq(N).For background to thiosemicarbazones and their coordination chemistry, see: Mazlan et al. (2014). The conformational flexibility in these molecules is reflected in the structure of the 4-methyl derivative where one molecule comprising the
is approximately planar and the other exhibits a clear twist between the hydroxybenzene and side chain, and in the structure of the 6-methoxy derivative where these residues are almost normal to each other, see: Anderson et al. (2012, 2014). For synthesis and methodology, see: Omar et al. (2014).Data collection: CrysAlis PRO (Agilent, 2011); cell
CrysAlis PRO (Agilent, 2011); data reduction: CrysAlis PRO (Agilent, 2011); program(s) used to solve structure: SHELXS97 (Sheldrick, 2015); program(s) used to refine structure: SHELXL2014 (Sheldrick, 2015); molecular graphics: ORTEP-3 for Windows (Farrugia, 2012) and DIAMOND (Brandenburg, 2006); software used to prepare material for publication: publCIF (Westrip, 2010).Fig. 1. The molecular structure of the title compound showing the atom-labelling scheme and displacement ellipsoids at the 70% probability level. | |
Fig. 2. Two views of the supramolecular tube along the b axis sustained by O—H···O, N—H···O and O—H···π hydrogen bonding, shown as orange, blue and purple dashed lines, respectively. | |
Fig. 3. A view of the unit-cell contents in projection down the b axis. The O—H···O, N—H···O, O—H···π and C—H···O interactions are shown as orange, blue, purple and brown dashed lines, respectively. |
C11H15N3OS·H2O | Z = 2 |
Mr = 255.33 | F(000) = 272 |
Triclinic, P1 | Dx = 1.342 Mg m−3 |
a = 6.7947 (5) Å | Cu Kα radiation, λ = 1.5418 Å |
b = 8.5169 (8) Å | Cell parameters from 4230 reflections |
c = 11.1199 (9) Å | θ = 4.0–71.4° |
α = 84.948 (7)° | µ = 2.25 mm−1 |
β = 81.825 (6)° | T = 100 K |
γ = 84.084 (7)° | Prism, pale-yellow |
V = 631.81 (9) Å3 | 0.30 × 0.20 × 0.10 mm |
Oxford Diffraction Xcaliber Eos Gemini diffractometer | 2408 independent reflections |
Radiation source: fine-focus sealed tube | 2187 reflections with I > 2σ(I) |
Graphite monochromator | Rint = 0.026 |
Detector resolution: 16.1952 pixels mm-1 | θmax = 71.5°, θmin = 4.0° |
ω scans | h = −8→8 |
Absorption correction: multi-scan (CrysAlis PRO; Agilent, 2011) | k = −10→9 |
Tmin = 0.923, Tmax = 1.000 | l = −13→13 |
8119 measured reflections |
Refinement on F2 | 6 restraints |
Least-squares matrix: full | Hydrogen site location: mixed |
R[F2 > 2σ(F2)] = 0.035 | H atoms treated by a mixture of independent and constrained refinement |
wR(F2) = 0.095 | w = 1/[σ2(Fo2) + (0.0593P)2 + 0.1686P] where P = (Fo2 + 2Fc2)/3 |
S = 1.03 | (Δ/σ)max < 0.001 |
2408 reflections | Δρmax = 0.33 e Å−3 |
171 parameters | Δρmin = −0.25 e Å−3 |
C11H15N3OS·H2O | γ = 84.084 (7)° |
Mr = 255.33 | V = 631.81 (9) Å3 |
Triclinic, P1 | Z = 2 |
a = 6.7947 (5) Å | Cu Kα radiation |
b = 8.5169 (8) Å | µ = 2.25 mm−1 |
c = 11.1199 (9) Å | T = 100 K |
α = 84.948 (7)° | 0.30 × 0.20 × 0.10 mm |
β = 81.825 (6)° |
Oxford Diffraction Xcaliber Eos Gemini diffractometer | 2408 independent reflections |
Absorption correction: multi-scan (CrysAlis PRO; Agilent, 2011) | 2187 reflections with I > 2σ(I) |
Tmin = 0.923, Tmax = 1.000 | Rint = 0.026 |
8119 measured reflections |
R[F2 > 2σ(F2)] = 0.035 | 6 restraints |
wR(F2) = 0.095 | H atoms treated by a mixture of independent and constrained refinement |
S = 1.03 | Δρmax = 0.33 e Å−3 |
2408 reflections | Δρmin = −0.25 e Å−3 |
171 parameters |
Geometry. All e.s.d.'s (except the e.s.d. in the dihedral angle between two l.s. planes) are estimated using the full covariance matrix. The cell e.s.d.'s are taken into account individually in the estimation of e.s.d.'s in distances, angles and torsion angles; correlations between e.s.d.'s in cell parameters are only used when they are defined by crystal symmetry. An approximate (isotropic) treatment of cell e.s.d.'s is used for estimating e.s.d.'s involving l.s. planes. |
x | y | z | Uiso*/Ueq | ||
S1 | 0.28553 (5) | 0.84923 (4) | 0.30332 (3) | 0.01932 (14) | |
O1 | 0.34603 (16) | 0.67711 (12) | 0.02373 (9) | 0.0193 (2) | |
H1O | 0.325 (3) | 0.7637 (15) | 0.0568 (16) | 0.029* | |
N1 | 0.24861 (18) | 1.08372 (15) | 0.12735 (11) | 0.0163 (3) | |
H1N | 0.224 (3) | 1.1825 (17) | 0.1053 (16) | 0.020* | |
N2 | 0.26593 (17) | 0.97046 (14) | 0.04679 (11) | 0.0150 (3) | |
N3 | 0.24119 (18) | 1.16243 (16) | 0.31656 (11) | 0.0174 (3) | |
H3N | 0.227 (3) | 1.2558 (18) | 0.2795 (15) | 0.021* | |
C1 | 0.2583 (2) | 1.03944 (18) | 0.24810 (13) | 0.0160 (3) | |
C2 | 0.2391 (2) | 1.00570 (18) | −0.06558 (13) | 0.0153 (3) | |
C2' | 0.1872 (2) | 1.16980 (18) | −0.12094 (13) | 0.0192 (3) | |
H2'1 | 0.1497 | 1.2423 | −0.0561 | 0.029* | |
H2'2 | 0.0750 | 1.1686 | −0.1672 | 0.029* | |
H2'3 | 0.3030 | 1.2053 | −0.1755 | 0.029* | |
C3 | 0.2674 (2) | 0.86995 (18) | −0.14260 (13) | 0.0154 (3) | |
C4 | 0.3216 (2) | 0.71390 (18) | −0.09556 (13) | 0.0164 (3) | |
C5 | 0.3532 (2) | 0.58929 (18) | −0.17128 (14) | 0.0193 (3) | |
H5 | 0.3914 | 0.4854 | −0.1391 | 0.023* | |
C6 | 0.3291 (2) | 0.61601 (19) | −0.29349 (14) | 0.0214 (3) | |
H6 | 0.3503 | 0.5303 | −0.3445 | 0.026* | |
C7 | 0.2739 (2) | 0.76788 (19) | −0.34155 (13) | 0.0206 (3) | |
H7 | 0.2562 | 0.7863 | −0.4250 | 0.025* | |
C8 | 0.2451 (2) | 0.89188 (19) | −0.26665 (13) | 0.0179 (3) | |
H8 | 0.2089 | 0.9955 | −0.3004 | 0.021* | |
C9 | 0.2364 (2) | 1.14844 (19) | 0.44845 (13) | 0.0202 (3) | |
H9A | 0.3678 | 1.1022 | 0.4697 | 0.024* | |
H9B | 0.1344 | 1.0773 | 0.4859 | 0.024* | |
C10 | 0.1872 (3) | 1.3101 (2) | 0.49712 (14) | 0.0271 (4) | |
H10A | 0.2892 | 1.3797 | 0.4605 | 0.041* | |
H10B | 0.1840 | 1.3003 | 0.5858 | 0.041* | |
H10C | 0.0563 | 1.3549 | 0.4766 | 0.041* | |
O1W | 0.14391 (17) | 0.42112 (13) | 0.13237 (11) | 0.0243 (3) | |
H1W | 0.200 (3) | 0.5018 (17) | 0.1042 (17) | 0.036* | |
H2W | 0.0232 (16) | 0.452 (2) | 0.1447 (19) | 0.036* |
U11 | U22 | U33 | U12 | U13 | U23 | |
S1 | 0.0267 (2) | 0.0159 (2) | 0.01519 (19) | −0.00163 (15) | −0.00399 (14) | 0.00149 (14) |
O1 | 0.0279 (6) | 0.0139 (5) | 0.0164 (5) | −0.0010 (4) | −0.0056 (4) | 0.0005 (4) |
N1 | 0.0221 (6) | 0.0121 (6) | 0.0147 (6) | −0.0017 (5) | −0.0036 (5) | 0.0003 (5) |
N2 | 0.0142 (6) | 0.0156 (6) | 0.0151 (6) | −0.0024 (5) | −0.0014 (4) | −0.0012 (5) |
N3 | 0.0215 (6) | 0.0155 (7) | 0.0151 (6) | −0.0020 (5) | −0.0033 (5) | 0.0005 (5) |
C1 | 0.0126 (6) | 0.0191 (8) | 0.0166 (7) | −0.0030 (6) | −0.0022 (5) | −0.0002 (6) |
C2 | 0.0126 (6) | 0.0168 (8) | 0.0165 (7) | −0.0037 (5) | −0.0014 (5) | 0.0014 (6) |
C2' | 0.0239 (7) | 0.0174 (8) | 0.0164 (7) | −0.0017 (6) | −0.0036 (6) | −0.0003 (6) |
C3 | 0.0120 (6) | 0.0179 (8) | 0.0164 (7) | −0.0034 (5) | −0.0016 (5) | −0.0007 (6) |
C4 | 0.0146 (6) | 0.0187 (8) | 0.0162 (7) | −0.0045 (6) | −0.0028 (5) | 0.0017 (6) |
C5 | 0.0191 (7) | 0.0152 (8) | 0.0239 (7) | −0.0037 (6) | −0.0032 (6) | −0.0006 (6) |
C6 | 0.0202 (7) | 0.0235 (9) | 0.0218 (7) | −0.0070 (6) | −0.0013 (6) | −0.0066 (6) |
C7 | 0.0198 (7) | 0.0276 (9) | 0.0156 (7) | −0.0063 (6) | −0.0036 (5) | −0.0014 (6) |
C8 | 0.0162 (7) | 0.0194 (8) | 0.0179 (7) | −0.0027 (6) | −0.0027 (5) | 0.0021 (6) |
C9 | 0.0232 (7) | 0.0228 (8) | 0.0151 (7) | −0.0049 (6) | −0.0028 (5) | −0.0006 (6) |
C10 | 0.0361 (9) | 0.0257 (9) | 0.0204 (8) | −0.0072 (7) | −0.0004 (6) | −0.0072 (6) |
O1W | 0.0227 (6) | 0.0173 (6) | 0.0314 (6) | −0.0025 (5) | −0.0014 (5) | 0.0029 (5) |
S1—C1 | 1.6825 (16) | C4—C5 | 1.393 (2) |
O1—C4 | 1.3653 (17) | C5—C6 | 1.388 (2) |
O1—H1O | 0.843 (9) | C5—H5 | 0.9500 |
N1—N2 | 1.3586 (17) | C6—C7 | 1.391 (2) |
N1—C1 | 1.3713 (18) | C6—H6 | 0.9500 |
N1—H1N | 0.862 (14) | C7—C8 | 1.383 (2) |
N2—C2 | 1.2931 (18) | C7—H7 | 0.9500 |
N3—C1 | 1.3344 (19) | C8—H8 | 0.9500 |
N3—C9 | 1.4569 (18) | C9—C10 | 1.511 (2) |
N3—H3N | 0.865 (14) | C9—H9A | 0.9900 |
C2—C3 | 1.480 (2) | C9—H9B | 0.9900 |
C2—C2' | 1.505 (2) | C10—H10A | 0.9800 |
C2'—H2'1 | 0.9800 | C10—H10B | 0.9800 |
C2'—H2'2 | 0.9800 | C10—H10C | 0.9800 |
C2'—H2'3 | 0.9800 | O1W—H1W | 0.834 (9) |
C3—C8 | 1.403 (2) | O1W—H2W | 0.831 (9) |
C3—C4 | 1.417 (2) | ||
C4—O1—H1O | 105.5 (13) | C6—C5—C4 | 120.42 (14) |
N2—N1—C1 | 119.33 (12) | C6—C5—H5 | 119.8 |
N2—N1—H1N | 121.6 (12) | C4—C5—H5 | 119.8 |
C1—N1—H1N | 119.0 (12) | C5—C6—C7 | 120.19 (14) |
C2—N2—N1 | 121.39 (13) | C5—C6—H6 | 119.9 |
C1—N3—C9 | 124.21 (13) | C7—C6—H6 | 119.9 |
C1—N3—H3N | 116.9 (12) | C8—C7—C6 | 119.35 (13) |
C9—N3—H3N | 118.8 (12) | C8—C7—H7 | 120.3 |
N3—C1—N1 | 112.99 (13) | C6—C7—H7 | 120.3 |
N3—C1—S1 | 123.95 (11) | C7—C8—C3 | 122.27 (14) |
N1—C1—S1 | 123.06 (11) | C7—C8—H8 | 118.9 |
N2—C2—C3 | 115.00 (13) | C3—C8—H8 | 118.9 |
N2—C2—C2' | 125.29 (13) | N3—C9—C10 | 109.63 (13) |
C3—C2—C2' | 119.70 (12) | N3—C9—H9A | 109.7 |
C2—C2'—H2'1 | 109.5 | C10—C9—H9A | 109.7 |
C2—C2'—H2'2 | 109.5 | N3—C9—H9B | 109.7 |
H2'1—C2'—H2'2 | 109.5 | C10—C9—H9B | 109.7 |
C2—C2'—H2'3 | 109.5 | H9A—C9—H9B | 108.2 |
H2'1—C2'—H2'3 | 109.5 | C9—C10—H10A | 109.5 |
H2'2—C2'—H2'3 | 109.5 | C9—C10—H10B | 109.5 |
C8—C3—C4 | 117.28 (13) | H10A—C10—H10B | 109.5 |
C8—C3—C2 | 120.87 (13) | C9—C10—H10C | 109.5 |
C4—C3—C2 | 121.84 (13) | H10A—C10—H10C | 109.5 |
O1—C4—C5 | 116.68 (13) | H10B—C10—H10C | 109.5 |
O1—C4—C3 | 122.84 (13) | H1W—O1W—H2W | 105 (2) |
C5—C4—C3 | 120.48 (13) | ||
C1—N1—N2—C2 | 173.45 (12) | C2—C3—C4—O1 | 1.8 (2) |
C9—N3—C1—N1 | 176.76 (12) | C8—C3—C4—C5 | 0.8 (2) |
C9—N3—C1—S1 | −2.4 (2) | C2—C3—C4—C5 | −177.99 (12) |
N2—N1—C1—N3 | 179.36 (12) | O1—C4—C5—C6 | 179.21 (12) |
N2—N1—C1—S1 | −1.51 (19) | C3—C4—C5—C6 | −1.0 (2) |
N1—N2—C2—C3 | 178.75 (11) | C4—C5—C6—C7 | 0.3 (2) |
N1—N2—C2—C2' | 0.0 (2) | C5—C6—C7—C8 | 0.6 (2) |
N2—C2—C3—C8 | −179.27 (12) | C6—C7—C8—C3 | −0.7 (2) |
C2'—C2—C3—C8 | −0.4 (2) | C4—C3—C8—C7 | 0.1 (2) |
N2—C2—C3—C4 | −0.5 (2) | C2—C3—C8—C7 | 178.85 (13) |
C2'—C2—C3—C4 | 178.29 (12) | C1—N3—C9—C10 | −172.17 (13) |
C8—C3—C4—O1 | −179.39 (12) |
Cg1 is the centroid of the C3–C8 ring. |
D—H···A | D—H | H···A | D···A | D—H···A |
O1—H1O···N2 | 0.84 (1) | 1.76 (1) | 2.5292 (16) | 150 (2) |
N1—H1N···O1Wi | 0.86 (2) | 2.09 (2) | 2.8918 (17) | 156 (2) |
N3—H3N···O1Wi | 0.87 (2) | 2.16 (2) | 2.9625 (18) | 154 (2) |
O1W—H1W···O1 | 0.84 (2) | 1.96 (2) | 2.7894 (16) | 174 (2) |
O1W—H2W···Cg1ii | 0.83 (1) | 2.86 (1) | 3.4165 (13) | 127 (1) |
C5—H5···O1iii | 0.95 | 2.56 | 3.3702 (18) | 143 |
Symmetry codes: (i) x, y+1, z; (ii) −x, −y+1, −z; (iii) −x+1, −y+1, −z. |
Cg1 is the centroid of the C3–C8 ring. |
D—H···A | D—H | H···A | D···A | D—H···A |
O1—H1O···N2 | 0.843 (14) | 1.763 (13) | 2.5292 (16) | 150.2 (17) |
N1—H1N···O1Wi | 0.862 (15) | 2.086 (15) | 2.8918 (17) | 155.5 (16) |
N3—H3N···O1Wi | 0.866 (16) | 2.161 (17) | 2.9625 (18) | 153.8 (16) |
O1W—H1W···O1 | 0.835 (17) | 1.958 (17) | 2.7894 (16) | 173.7 (17) |
O1W—H2W···Cg1ii | 0.831 (13) | 2.856 (14) | 3.4165 (13) | 126.5 (14) |
C5—H5···O1iii | 0.95 | 2.56 | 3.3702 (18) | 143 |
Symmetry codes: (i) x, y+1, z; (ii) −x, −y+1, −z; (iii) −x+1, −y+1, −z. |
Acknowledgements
Support for this project came from Universiti Putra Malaysia (UPM) under their Research University Grant Scheme (RUGS No. 9419400), Malaysian Fundamental Research Grant Scheme (FRGS No. 5524425) and the ScienceFund (Science Fund No. 5450726). We also thank Siti Khadijah Densabali for collecting the X-ray data. JJ wishes to acknowledge the Malaysian Government for sponsorship under the SGRA Scheme.
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