organic compounds
5-Methyl-1-(4-methylphenyl)-N′-[1-(1H-pyrrol-2-yl)ethylidene]-1H-1,2,3-triazole-4-carbohydrazide monohydrate
aDepartment of Optometry, College of Applied Medical Sciences, King Saud University, PO Box 10219, Riyadh 11433, Saudi Arabia, bDepartment of Chemistry, College of Science and Humanities, Shaqra University, Duwadimi, Saudi Arabia, cApplied Organic Chemistry Department, National Research Centre, Dokki, Giza, Egypt, dNational Center for Petrochemicals Technology, King Abdulaziz City for Science and Technology, PO Box 6086, Riyadh 11442, Saudi Arabia, eDepartment of Chemistry, College of Science, Al-Nahrain University, Baghdad 64021, Iraq, and fSchool of Chemistry, Cardiff University, Main Building, Park Place, Cardiff CF10 3AT, UK
*Correspondence e-mail: gelhiti@ksu.edu.sa
In the title hydrate, C17H18N6O·H2O, the twist angles between the least-squares planes of the pyrolyl/methyltriazolyl/tolyl groups are 11.4 (2) and 7.9 (1)°, respectively. In the crystal, centrosymmetric tetramers (two organic molecules and two water molecules) are linked by N—H⋯O and O—H⋯O hydrogen bonds. Weak aromatic π–π stacking interactions between the triazolyl rings [centroid–centroid separation = 3.6422 (10) Å] link the tetramers.
Keywords: crystal structure; pyrrole; carbohydrazide.
CCDC reference: 1862395
Structure description
Arylidene carbohydrazides have various biological activities (Almasirad et al., 2005; Bonacorso et al., 2012; Hernández-Vázquez et al., 2016; Leite et al., 1999; Lima et al., 2000). As part of our studies in this area, we now describe the synthesis and structure of the title hydrate.
The ). The twist angles between the least-squares planes of the pyrolyl/methyltriazolyl/tolyl groups are 11.4 (2) and 7.9 (1)°, respectively. In the crystal, the pyrolyl group donates an N—H⋯O hydrogen bond to the water molecule, which in turn donates O—H hydrogen bonds to two neighbouring molecules, thereby linking them (Table 1, Fig. 2) into a centrosymmetric tetramer. Organic molecules related by inversion symmetry are arranged in pairs with the centroids of their triazolyl rings 3.6422 (10) Å apart. The pairs are stacked such that the closest distance between the centroids of triazolyl groups of neighbouring pairs is 3.967 (2) Å.
consists of a 1,2,3-triazole-4-carbohydrazide molecule and a water molecule (Fig. 1Synthesis and crystallization
The title compound (yield 85%) was synthesized from reaction of a mixture of 5-methyl-1-(4-methylphenyl)-1H-1,2,3-triazole-4-carbohydrazide and 1-(1H-pyrrol-2-yl)ethanone in boiling ethanol containing a few drops of acetic acid for 4 h. The crude product obtained was recrystallized from dimethylformamide solution to give colourless crystals. The water molecule of crystallization was presumably absorbed from the atmosphere.
Refinement
Crystal data, data collection and structure .
details are summarized in Table 2Structural data
CCDC reference: 1862395
https://doi.org/10.1107/S2414314618011628/hb4251sup1.cif
contains datablocks I, bmk1745. DOI:Structure factors: contains datablock I. DOI: https://doi.org/10.1107/S2414314618011628/hb4251Isup2.hkl
Data collection: CrysAlis PRO (Rigaku OD, 2015); cell
CrysAlis PRO (Rigaku OD, 2015); data reduction: CrysAlis PRO (Rigaku OD, 2015); program(s) used to solve structure: SHELXS97 (Sheldrick, 2008); program(s) used to refine structure: SHELXL2018 (Sheldrick, 2015); molecular graphics: ORTEP-3 for Windows and WinGX (Farrugia, 2012); software used to prepare material for publication: ORTEP-3 for Windows and WinGX (Farrugia, 2012), and CHEMDRAW Ultra (Cambridge Soft, 2001).C17H18N6O·H2O | Z = 2 |
Mr = 340.39 | F(000) = 360 |
Triclinic, P1 | Dx = 1.295 Mg m−3 |
a = 7.3968 (8) Å | Mo Kα radiation, λ = 0.71073 Å |
b = 10.6475 (9) Å | Cell parameters from 2273 reflections |
c = 12.7769 (13) Å | θ = 3.4–28.7° |
α = 106.577 (9)° | µ = 0.09 mm−1 |
β = 100.809 (9)° | T = 296 K |
γ = 108.208 (9)° | Block, colourless |
V = 872.83 (16) Å3 | 0.26 × 0.18 × 0.15 mm |
Rigaku Oxford Diffraction SuperNova, Dual, Cu at zero, Atlas diffractometer | 2871 reflections with I > 2σ(I) |
ω scans | Rint = 0.022 |
Absorption correction: gaussian (CrysAlis PRO; Rigaku OD, 2015) | θmax = 29.8°, θmin = 3.0° |
Tmin = 0.497, Tmax = 1.000 | h = −9→9 |
7305 measured reflections | k = −14→13 |
4129 independent reflections | l = −16→14 |
Refinement on F2 | Primary atom site location: structure-invariant direct methods |
Least-squares matrix: full | Hydrogen site location: mixed |
R[F2 > 2σ(F2)] = 0.057 | H atoms treated by a mixture of independent and constrained refinement |
wR(F2) = 0.155 | w = 1/[σ2(Fo2) + (0.0585P)2 + 0.2675P] where P = (Fo2 + 2Fc2)/3 |
S = 1.05 | (Δ/σ)max < 0.001 |
4129 reflections | Δρmax = 0.21 e Å−3 |
237 parameters | Δρmin = −0.27 e Å−3 |
0 restraints |
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. |
Refinement. Water H atoms were located on the difference Fourier map and refined freely. The rest of the H atoms were placed in calculated positions and refined using a riding model. Methyl C—H bonds were fixed at 0.96 Å, with displacement parameters 1.5 times Ueq(C), and were allowed to spin about the C—C bond. N—H bonds were fixed at 0.86 Å and aromatic C—H distances were set at 0.93 Å and their Uiso values set at 1.2 times the Ueq for the atoms to which they are bonded. |
x | y | z | Uiso*/Ueq | ||
C1 | 0.4498 (4) | 0.5591 (2) | −0.34752 (19) | 0.0624 (6) | |
H1 | 0.552068 | 0.614290 | −0.367621 | 0.075* | |
C2 | 0.2509 (4) | 0.5212 (3) | −0.3952 (2) | 0.0674 (7) | |
H2 | 0.192987 | 0.545682 | −0.453369 | 0.081* | |
C3 | 0.1493 (3) | 0.4384 (2) | −0.34062 (18) | 0.0582 (6) | |
H3 | 0.011555 | 0.397898 | −0.355871 | 0.070* | |
C4 | 0.2908 (3) | 0.4282 (2) | −0.26023 (15) | 0.0449 (4) | |
C5 | 0.2718 (3) | 0.3527 (2) | −0.18161 (15) | 0.0435 (4) | |
C6 | 0.0678 (3) | 0.2643 (3) | −0.1852 (2) | 0.0661 (6) | |
H6A | 0.050998 | 0.166304 | −0.208278 | 0.099* | |
H6B | −0.030420 | 0.274780 | −0.239134 | 0.099* | |
H6C | 0.051649 | 0.295101 | −0.110493 | 0.099* | |
C7 | 0.5842 (3) | 0.28246 (19) | 0.01528 (15) | 0.0427 (4) | |
C8 | 0.5431 (3) | 0.19870 (19) | 0.08797 (15) | 0.0437 (4) | |
C9 | 0.6700 (3) | 0.1633 (2) | 0.15650 (15) | 0.0447 (4) | |
C10 | 0.8839 (3) | 0.1866 (3) | 0.1746 (2) | 0.0644 (6) | |
H10A | 0.965436 | 0.277622 | 0.233966 | 0.097* | |
H10B | 0.915867 | 0.184061 | 0.104786 | 0.097* | |
H10C | 0.908864 | 0.113237 | 0.196794 | 0.097* | |
C11 | 0.5936 (3) | 0.02833 (19) | 0.28757 (15) | 0.0423 (4) | |
C12 | 0.4664 (3) | −0.1064 (2) | 0.27027 (16) | 0.0473 (5) | |
H12 | 0.357886 | −0.158025 | 0.204142 | 0.057* | |
C13 | 0.5012 (3) | −0.1642 (2) | 0.35192 (17) | 0.0510 (5) | |
H13 | 0.414885 | −0.255287 | 0.340156 | 0.061* | |
C14 | 0.6612 (3) | −0.0901 (2) | 0.45079 (17) | 0.0493 (5) | |
C15 | 0.7877 (3) | 0.0454 (2) | 0.46619 (17) | 0.0537 (5) | |
H15 | 0.897338 | 0.096469 | 0.531771 | 0.064* | |
C16 | 0.7543 (3) | 0.1060 (2) | 0.38601 (17) | 0.0514 (5) | |
H16 | 0.838664 | 0.197805 | 0.398139 | 0.062* | |
C17 | 0.6964 (4) | −0.1568 (3) | 0.5383 (2) | 0.0680 (6) | |
H17A | 0.574689 | −0.194456 | 0.555808 | 0.102* | |
H17B | 0.797874 | −0.086174 | 0.606917 | 0.102* | |
H17C | 0.738952 | −0.232303 | 0.507897 | 0.102* | |
N1 | 0.4733 (3) | 0.50299 (17) | −0.26600 (14) | 0.0512 (4) | |
H1A | 0.586128 | 0.512927 | −0.224096 | 0.061* | |
N2 | 0.4359 (2) | 0.36382 (16) | −0.11682 (13) | 0.0447 (4) | |
N3 | 0.4194 (2) | 0.28847 (17) | −0.04530 (13) | 0.0463 (4) | |
H3A | 0.304451 | 0.245452 | −0.039329 | 0.056* | |
N4 | 0.3558 (2) | 0.14459 (19) | 0.09563 (14) | 0.0528 (4) | |
N5 | 0.3573 (2) | 0.07814 (19) | 0.16659 (15) | 0.0539 (4) | |
N6 | 0.5496 (2) | 0.08967 (17) | 0.20462 (13) | 0.0455 (4) | |
O1 | 0.75210 (19) | 0.33899 (15) | 0.00833 (11) | 0.0534 (4) | |
O2 | 0.1638 (3) | 0.4799 (3) | 0.1289 (2) | 0.1062 (9) | |
H1O | 0.036 (6) | 0.435 (4) | 0.097 (3) | 0.130 (13)* | |
H2O | 0.211 (5) | 0.529 (4) | 0.097 (3) | 0.109 (11)* |
U11 | U22 | U33 | U12 | U13 | U23 | |
C1 | 0.0743 (16) | 0.0615 (13) | 0.0618 (13) | 0.0252 (12) | 0.0203 (11) | 0.0391 (11) |
C2 | 0.0841 (18) | 0.0699 (15) | 0.0594 (13) | 0.0369 (13) | 0.0114 (12) | 0.0388 (12) |
C3 | 0.0546 (13) | 0.0656 (14) | 0.0585 (12) | 0.0275 (11) | 0.0077 (10) | 0.0301 (11) |
C4 | 0.0470 (11) | 0.0474 (11) | 0.0436 (10) | 0.0207 (9) | 0.0111 (8) | 0.0205 (8) |
C5 | 0.0409 (10) | 0.0469 (10) | 0.0433 (9) | 0.0165 (8) | 0.0106 (8) | 0.0196 (8) |
C6 | 0.0405 (12) | 0.0849 (16) | 0.0720 (14) | 0.0128 (11) | 0.0108 (10) | 0.0445 (13) |
C7 | 0.0401 (10) | 0.0453 (10) | 0.0398 (9) | 0.0114 (8) | 0.0089 (7) | 0.0192 (8) |
C8 | 0.0391 (10) | 0.0479 (11) | 0.0435 (9) | 0.0120 (8) | 0.0099 (7) | 0.0233 (8) |
C9 | 0.0410 (10) | 0.0489 (11) | 0.0462 (10) | 0.0129 (8) | 0.0121 (8) | 0.0262 (8) |
C10 | 0.0452 (12) | 0.0883 (17) | 0.0806 (15) | 0.0278 (11) | 0.0224 (11) | 0.0565 (14) |
C11 | 0.0425 (10) | 0.0481 (10) | 0.0459 (10) | 0.0197 (8) | 0.0165 (8) | 0.0268 (8) |
C12 | 0.0466 (11) | 0.0469 (11) | 0.0493 (10) | 0.0147 (9) | 0.0176 (8) | 0.0212 (9) |
C13 | 0.0554 (12) | 0.0463 (11) | 0.0635 (12) | 0.0203 (9) | 0.0286 (10) | 0.0302 (10) |
C14 | 0.0599 (12) | 0.0588 (12) | 0.0545 (11) | 0.0358 (10) | 0.0305 (10) | 0.0342 (10) |
C15 | 0.0567 (12) | 0.0567 (12) | 0.0508 (11) | 0.0242 (10) | 0.0111 (9) | 0.0252 (10) |
C16 | 0.0511 (12) | 0.0452 (11) | 0.0563 (11) | 0.0137 (9) | 0.0104 (9) | 0.0256 (9) |
C17 | 0.0860 (17) | 0.0842 (17) | 0.0734 (15) | 0.0506 (14) | 0.0406 (13) | 0.0550 (13) |
N1 | 0.0508 (10) | 0.0571 (10) | 0.0542 (9) | 0.0212 (8) | 0.0144 (7) | 0.0332 (8) |
N2 | 0.0423 (9) | 0.0525 (9) | 0.0456 (8) | 0.0172 (7) | 0.0126 (7) | 0.0287 (7) |
N3 | 0.0361 (8) | 0.0582 (10) | 0.0503 (9) | 0.0141 (7) | 0.0125 (7) | 0.0333 (8) |
N4 | 0.0420 (9) | 0.0660 (11) | 0.0572 (10) | 0.0171 (8) | 0.0131 (7) | 0.0382 (9) |
N5 | 0.0401 (9) | 0.0675 (11) | 0.0618 (10) | 0.0165 (8) | 0.0142 (7) | 0.0405 (9) |
N6 | 0.0388 (9) | 0.0521 (9) | 0.0504 (9) | 0.0147 (7) | 0.0123 (7) | 0.0298 (7) |
O1 | 0.0375 (7) | 0.0699 (9) | 0.0561 (8) | 0.0135 (7) | 0.0118 (6) | 0.0375 (7) |
O2 | 0.0396 (10) | 0.147 (2) | 0.1405 (19) | 0.0047 (11) | 0.0041 (11) | 0.1141 (18) |
C1—N1 | 1.351 (2) | C10—H10C | 0.9600 |
C1—C2 | 1.360 (3) | C11—C12 | 1.375 (3) |
C1—H1 | 0.9300 | C11—C16 | 1.382 (3) |
C2—C3 | 1.400 (3) | C11—N6 | 1.433 (2) |
C2—H2 | 0.9300 | C12—C13 | 1.377 (3) |
C3—C4 | 1.377 (3) | C12—H12 | 0.9300 |
C3—H3 | 0.9300 | C13—C14 | 1.380 (3) |
C4—N1 | 1.364 (3) | C13—H13 | 0.9300 |
C4—C5 | 1.455 (2) | C14—C15 | 1.386 (3) |
C5—N2 | 1.285 (2) | C14—C17 | 1.511 (3) |
C5—C6 | 1.492 (3) | C15—C16 | 1.382 (3) |
C6—H6A | 0.9600 | C15—H15 | 0.9300 |
C6—H6B | 0.9600 | C16—H16 | 0.9300 |
C6—H6C | 0.9600 | C17—H17A | 0.9600 |
C7—O1 | 1.232 (2) | C17—H17B | 0.9600 |
C7—N3 | 1.346 (2) | C17—H17C | 0.9600 |
C7—C8 | 1.470 (2) | N1—H1A | 0.8600 |
C8—N4 | 1.359 (2) | N2—N3 | 1.376 (2) |
C8—C9 | 1.375 (2) | N3—H3A | 0.8600 |
C9—N6 | 1.353 (2) | N4—N5 | 1.300 (2) |
C9—C10 | 1.484 (3) | N5—N6 | 1.368 (2) |
C10—H10A | 0.9600 | O2—H1O | 0.87 (4) |
C10—H10B | 0.9600 | O2—H2O | 0.79 (4) |
N1—C1—C2 | 108.3 (2) | C12—C11—N6 | 118.61 (16) |
N1—C1—H1 | 125.8 | C16—C11—N6 | 120.64 (16) |
C2—C1—H1 | 125.8 | C11—C12—C13 | 119.31 (18) |
C1—C2—C3 | 107.43 (18) | C11—C12—H12 | 120.3 |
C1—C2—H2 | 126.3 | C13—C12—H12 | 120.3 |
C3—C2—H2 | 126.3 | C12—C13—C14 | 121.59 (18) |
C4—C3—C2 | 107.4 (2) | C12—C13—H13 | 119.2 |
C4—C3—H3 | 126.3 | C14—C13—H13 | 119.2 |
C2—C3—H3 | 126.3 | C13—C14—C15 | 118.07 (17) |
N1—C4—C3 | 107.16 (17) | C13—C14—C17 | 120.34 (19) |
N1—C4—C5 | 121.31 (16) | C15—C14—C17 | 121.6 (2) |
C3—C4—C5 | 131.50 (19) | C16—C15—C14 | 121.31 (19) |
N2—C5—C4 | 116.18 (17) | C16—C15—H15 | 119.3 |
N2—C5—C6 | 125.02 (17) | C14—C15—H15 | 119.3 |
C4—C5—C6 | 118.75 (16) | C11—C16—C15 | 119.06 (18) |
C5—C6—H6A | 109.5 | C11—C16—H16 | 120.5 |
C5—C6—H6B | 109.5 | C15—C16—H16 | 120.5 |
H6A—C6—H6B | 109.5 | C14—C17—H17A | 109.5 |
C5—C6—H6C | 109.5 | C14—C17—H17B | 109.5 |
H6A—C6—H6C | 109.5 | H17A—C17—H17B | 109.5 |
H6B—C6—H6C | 109.5 | C14—C17—H17C | 109.5 |
O1—C7—N3 | 123.18 (16) | H17A—C17—H17C | 109.5 |
O1—C7—C8 | 123.42 (16) | H17B—C17—H17C | 109.5 |
N3—C7—C8 | 113.38 (16) | C1—N1—C4 | 109.67 (17) |
N4—C8—C9 | 109.63 (15) | C1—N1—H1A | 125.2 |
N4—C8—C7 | 120.37 (16) | C4—N1—H1A | 125.2 |
C9—C8—C7 | 129.99 (17) | C5—N2—N3 | 116.60 (16) |
N6—C9—C8 | 103.14 (16) | C7—N3—N2 | 119.63 (15) |
N6—C9—C10 | 124.59 (16) | C7—N3—H3A | 120.2 |
C8—C9—C10 | 132.18 (17) | N2—N3—H3A | 120.2 |
C9—C10—H10A | 109.5 | N5—N4—C8 | 109.18 (15) |
C9—C10—H10B | 109.5 | N4—N5—N6 | 106.59 (15) |
H10A—C10—H10B | 109.5 | C9—N6—N5 | 111.46 (14) |
C9—C10—H10C | 109.5 | C9—N6—C11 | 130.64 (16) |
H10A—C10—H10C | 109.5 | N5—N6—C11 | 117.88 (14) |
H10B—C10—H10C | 109.5 | H1O—O2—H2O | 111 (3) |
C12—C11—C16 | 120.66 (16) | ||
N1—C1—C2—C3 | −0.1 (3) | N6—C11—C16—C15 | 177.54 (18) |
C1—C2—C3—C4 | 0.0 (3) | C14—C15—C16—C11 | −1.4 (3) |
C2—C3—C4—N1 | 0.1 (2) | C2—C1—N1—C4 | 0.2 (3) |
C2—C3—C4—C5 | −178.0 (2) | C3—C4—N1—C1 | −0.2 (2) |
N1—C4—C5—N2 | 1.6 (3) | C5—C4—N1—C1 | 178.16 (18) |
C3—C4—C5—N2 | 179.5 (2) | C4—C5—N2—N3 | −177.59 (16) |
N1—C4—C5—C6 | −175.7 (2) | C6—C5—N2—N3 | −0.5 (3) |
C3—C4—C5—C6 | 2.2 (3) | O1—C7—N3—N2 | −1.8 (3) |
O1—C7—C8—N4 | 177.01 (19) | C8—C7—N3—N2 | 179.80 (15) |
N3—C7—C8—N4 | −4.5 (3) | C5—N2—N3—C7 | 172.56 (17) |
O1—C7—C8—C9 | −2.0 (3) | C9—C8—N4—N5 | 0.8 (2) |
N3—C7—C8—C9 | 176.40 (19) | C7—C8—N4—N5 | −178.43 (17) |
N4—C8—C9—N6 | −1.0 (2) | C8—N4—N5—N6 | −0.2 (2) |
C7—C8—C9—N6 | 178.14 (19) | C8—C9—N6—N5 | 0.9 (2) |
N4—C8—C9—C10 | 175.6 (2) | C10—C9—N6—N5 | −176.1 (2) |
C7—C8—C9—C10 | −5.2 (4) | C8—C9—N6—C11 | −177.44 (18) |
C16—C11—C12—C13 | −0.5 (3) | C10—C9—N6—C11 | 5.6 (3) |
N6—C11—C12—C13 | −176.89 (17) | N4—N5—N6—C9 | −0.4 (2) |
C11—C12—C13—C14 | −0.1 (3) | N4—N5—N6—C11 | 178.13 (16) |
C12—C13—C14—C15 | −0.1 (3) | C12—C11—N6—C9 | −136.0 (2) |
C12—C13—C14—C17 | −179.51 (19) | C16—C11—N6—C9 | 47.6 (3) |
C13—C14—C15—C16 | 0.8 (3) | C12—C11—N6—N5 | 45.8 (2) |
C17—C14—C15—C16 | −179.7 (2) | C16—C11—N6—N5 | −130.6 (2) |
C12—C11—C16—C15 | 1.2 (3) |
D—H···A | D—H | H···A | D···A | D—H···A |
N1—H1A···O2i | 0.86 | 1.98 | 2.838 (2) | 176 |
O2—H1O···O1ii | 0.87 (4) | 1.96 (4) | 2.822 (2) | 174 (3) |
O2—H2O···N2i | 0.79 (4) | 2.43 (4) | 2.966 (3) | 126 (3) |
O2—H2O···O1i | 0.79 (4) | 2.20 (4) | 2.961 (2) | 162 (3) |
Symmetry codes: (i) −x+1, −y+1, −z; (ii) x−1, y, z. |
Footnotes
‡Additional corresponding author, e-mail: kariukib@cardiff.ac.uk.
Funding information
MHA thanks King Abdulaziz City for Science and Technology (KACST), Saudi Arabia for financial support (award No. 020-0180).
References
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