organic compounds
N′-[(E)-2-Hydroxy-5-methoxybenzylidene]pyridine-4-carbohydrazide monohydrate
aDepartment of Chemistry and Research Centre, PRNSS College, Mattanur 670 702, Kannur, Kerala, India, bDepartment of Chemistry, Faculty of Science, Eastern University, Sri Lanka, Chenkalady, Sri Lanka, and cDepartment of Applied Chemistry, Cochin University of Science and Technology, Kochi 682 022, India
*Correspondence e-mail: eesans@yahoo.com
The title compound, C14H13N3O3·H2O, adopts an E conformation with respect to the azomethine bond and crystallizes in the amide form. An intramolecular O—H⋯N hydrogen bond occurs. In the crystal, the lattice water molecule plays a major role in the supramolecular architecture by interconnecting adjacent molecules into a three-dimensional netwrok by means of O—H⋯O, O—H⋯N and N—H⋯O hydrogen-bonding interactions. The structure also features two non-classical C—H⋯O interactions.
Related literature
For properties of carbohydrazide and its derivatives, see: Mangalam & Kurup (2011). For molecular sensing of metals, see: Bakir & Brown (2002). For related structures and background references, see: Kargar et al. (2010); Shafiq et al. (2009); Sithambaresan & Kurup (2011). For the synthesis, see: Mangalam et al. (2009).
Experimental
Crystal data
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Data collection: APEX2 (Bruker, 2004); cell APEX2 and SAINT (Bruker, 2004); data reduction: SAINT and XPREP (Bruker, 2004); program(s) used to solve structure: SHELXS97 (Sheldrick, 2008); program(s) used to refine structure: SHELXL97 (Sheldrick, 2008); molecular graphics: ORTEP-3 for Windows (Farrugia, 2012) and DIAMOND (Brandenburg, 2010); software used to prepare material for publication: SHELXL97 and publCIF (Westrip, 2010).
Supporting information
10.1107/S160053681301235X/fj2628sup1.cif
contains datablocks I, global. DOI:Structure factors: contains datablock I. DOI: 10.1107/S160053681301235X/fj2628Isup2.hkl
Supporting information file. DOI: 10.1107/S160053681301235X/fj2628Isup3.cml
The title compound was prepared by adapting a reported procedure (Mangalam et al., 2009). To a warm ethanolic solution of 2-hydroxy-5-methoxybenzaldehyde (0.152 g, 1 mmol), a methanolic solution of pyridine-4-carbohydrazide (0.137 g, 1 mmol) was added and the resulting solution was refluxed for 45 minutes after adding 3 drops of glacial acetic acid. On cooling the solution, yellow crystals separated out. Single crystals suitable for X-ray diffraction studies were obtained by slow evaporation of its solution in 1:1 mixture of ethanol and DMF.
All H atoms on C were placed in calculated positions, guided by difference maps, with C–H bond distances 0.93–0.96 Å. H atoms were assigned as Uiso(H)=1.2Ueq(carrier) or 1.5Ueq (methyl C). N2–H2' and O2–H2A H atoms were located from difference maps and restrained using DFIX instructions. H atoms of the water molecule were also located from difference maps and restrained using DFIX and DANG instructions. Omitted owing to bad disagreement was the reflection (1 1 0). In the absence of significant
effects Friedel pairs have been merged.Data collection: APEX2 (Bruker, 2004); cell
APEX2 and SAINT (Bruker, 2004); data reduction: SAINT and XPREP (Bruker, 2004); program(s) used to solve structure: SHELXS97 (Sheldrick, 2008); program(s) used to refine structure: SHELXL97 (Sheldrick, 2008); molecular graphics: ORTEP-3 for Windows (Farrugia, 2012) and DIAMOND (Brandenburg, 2010); software used to prepare material for publication: SHELXL97 (Sheldrick, 2008) and publCIF (Westrip, 2010).Fig. 1. ORTEP view of the unique part of the compound, drawn with 50% probability displacement ellipsoids for the non-H atoms. | |
Fig. 2. Graphical representation showing hydrogen bondings in the crystal structure of C14H13N3O3.H2O. | |
Fig. 3. A view of the unit cell along a axis. |
C14H13N3O3·H2O | F(000) = 608 |
Mr = 289.29 | Dx = 1.335 Mg m−3 |
Orthorhombic, Pna21 | Mo Kα radiation, λ = 0.71073 Å |
Hall symbol: P 2c -2n | Cell parameters from 1943 reflections |
a = 12.6455 (16) Å | θ = 2.8–27.5° |
b = 12.7423 (16) Å | µ = 0.10 mm−1 |
c = 8.9306 (9) Å | T = 296 K |
V = 1439.0 (3) Å3 | Block, yellow |
Z = 4 | 0.40 × 0.30 × 0.25 mm |
Bruker Kappa APEXII CCD diffractometer | 1668 independent reflections |
Radiation source: fine-focus sealed tube | 1134 reflections with I > 2σ(I) |
Graphite monochromator | Rint = 0.056 |
Detector resolution: 8.33 pixels mm-1 | θmax = 27.0°, θmin = 2.8° |
ω and ϕ scan | h = −16→15 |
Absorption correction: multi-scan (SADABS; Bruker, 2004) | k = −14→16 |
Tmin = 0.965, Tmax = 0.976 | l = −11→9 |
10294 measured reflections |
Refinement on F2 | Secondary atom site location: difference Fourier map |
Least-squares matrix: full | Hydrogen site location: inferred from neighbouring sites |
R[F2 > 2σ(F2)] = 0.045 | H atoms treated by a mixture of independent and constrained refinement |
wR(F2) = 0.124 | w = 1/[σ2(Fo2) + (0.0701P)2] where P = (Fo2 + 2Fc2)/3 |
S = 1.00 | (Δ/σ)max < 0.001 |
1668 reflections | Δρmax = 0.17 e Å−3 |
208 parameters | Δρmin = −0.15 e Å−3 |
6 restraints | Extinction correction: SHELXL97 (Sheldrick, 2008), Fc*=kFc[1+0.001xFc2λ3/sin(2θ)]-1/4 |
Primary atom site location: structure-invariant direct methods | Extinction coefficient: 0.012 (3) |
C14H13N3O3·H2O | V = 1439.0 (3) Å3 |
Mr = 289.29 | Z = 4 |
Orthorhombic, Pna21 | Mo Kα radiation |
a = 12.6455 (16) Å | µ = 0.10 mm−1 |
b = 12.7423 (16) Å | T = 296 K |
c = 8.9306 (9) Å | 0.40 × 0.30 × 0.25 mm |
Bruker Kappa APEXII CCD diffractometer | 1668 independent reflections |
Absorption correction: multi-scan (SADABS; Bruker, 2004) | 1134 reflections with I > 2σ(I) |
Tmin = 0.965, Tmax = 0.976 | Rint = 0.056 |
10294 measured reflections |
R[F2 > 2σ(F2)] = 0.045 | 6 restraints |
wR(F2) = 0.124 | H atoms treated by a mixture of independent and constrained refinement |
S = 1.00 | Δρmax = 0.17 e Å−3 |
1668 reflections | Δρmin = −0.15 e Å−3 |
208 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. |
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 > σ(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 | ||
O1 | 0.1808 (2) | 0.4322 (3) | −0.0082 (3) | 0.0751 (10) | |
O2 | 0.4338 (2) | 0.2150 (3) | 0.3839 (3) | 0.0617 (9) | |
O3 | 0.37204 (18) | 0.1124 (2) | 0.7981 (3) | 0.0518 (7) | |
O1S | 1.0079 (2) | 0.2238 (2) | 0.7337 (4) | 0.0590 (8) | |
N1 | 0.2710 (2) | 0.2049 (2) | 0.5685 (3) | 0.0397 (7) | |
N2 | 0.2196 (2) | 0.1700 (3) | 0.6956 (3) | 0.0408 (7) | |
N3 | 0.1091 (3) | −0.0404 (3) | 1.1458 (4) | 0.0575 (9) | |
C1 | 0.3661 (3) | 0.2681 (3) | 0.2933 (4) | 0.0411 (8) | |
C2 | 0.4043 (3) | 0.3044 (3) | 0.1575 (4) | 0.0507 (10) | |
H2 | 0.4747 | 0.2928 | 0.1326 | 0.061* | |
C3 | 0.3409 (3) | 0.3566 (3) | 0.0601 (4) | 0.0533 (11) | |
H3 | 0.3679 | 0.3792 | −0.0312 | 0.064* | |
C4 | 0.2361 (3) | 0.3764 (3) | 0.0963 (4) | 0.0497 (10) | |
C5 | 0.1962 (3) | 0.3413 (3) | 0.2291 (4) | 0.0428 (9) | |
H5 | 0.1257 | 0.3540 | 0.2528 | 0.051* | |
C6 | 0.2605 (3) | 0.2865 (3) | 0.3301 (3) | 0.0353 (8) | |
C7 | 0.2147 (3) | 0.2507 (3) | 0.4707 (4) | 0.0391 (8) | |
H7 | 0.1432 | 0.2615 | 0.4890 | 0.047* | |
C8 | 0.2760 (3) | 0.1203 (3) | 0.8009 (3) | 0.0360 (8) | |
C9 | 0.2130 (2) | 0.0700 (3) | 0.9218 (3) | 0.0345 (8) | |
C10 | 0.2574 (3) | 0.0576 (3) | 1.0612 (5) | 0.0558 (11) | |
H10 | 0.3236 | 0.0856 | 1.0823 | 0.067* | |
C11 | 0.2026 (4) | 0.0036 (4) | 1.1683 (5) | 0.0651 (13) | |
H11 | 0.2329 | −0.0025 | 1.2628 | 0.078* | |
C12 | 0.0673 (3) | −0.0275 (3) | 1.0122 (5) | 0.0513 (10) | |
H12 | 0.0012 | −0.0569 | 0.9941 | 0.062* | |
C13 | 0.1150 (3) | 0.0265 (3) | 0.8976 (4) | 0.0404 (8) | |
H13 | 0.0817 | 0.0336 | 0.8053 | 0.049* | |
C14 | 0.0712 (4) | 0.4431 (4) | 0.0117 (5) | 0.0759 (15) | |
H14A | 0.0391 | 0.3750 | 0.0175 | 0.114* | |
H14B | 0.0418 | 0.4810 | −0.0714 | 0.114* | |
H14C | 0.0576 | 0.4809 | 0.1027 | 0.114* | |
H2' | 0.1551 (15) | 0.191 (3) | 0.720 (5) | 0.054 (12)* | |
H1A | 0.973 (3) | 0.279 (2) | 0.757 (6) | 0.093 (19)* | |
H1B | 0.962 (3) | 0.175 (2) | 0.722 (6) | 0.081 (16)* | |
H2A | 0.400 (3) | 0.198 (3) | 0.462 (3) | 0.066 (14)* |
U11 | U22 | U33 | U12 | U13 | U23 | |
O1 | 0.069 (2) | 0.106 (3) | 0.0501 (17) | −0.0069 (18) | −0.0104 (16) | 0.0408 (18) |
O2 | 0.0470 (15) | 0.080 (2) | 0.0580 (18) | 0.0194 (14) | 0.0147 (16) | 0.0220 (16) |
O3 | 0.0316 (13) | 0.0695 (19) | 0.0542 (15) | −0.0047 (12) | −0.0016 (12) | 0.0243 (13) |
O1S | 0.0376 (14) | 0.0544 (18) | 0.085 (2) | 0.0050 (14) | −0.0006 (15) | −0.0197 (16) |
N1 | 0.0355 (15) | 0.0484 (18) | 0.0351 (15) | −0.0004 (14) | 0.0036 (14) | 0.0125 (14) |
N2 | 0.0352 (16) | 0.0528 (19) | 0.0343 (16) | 0.0034 (15) | 0.0074 (14) | 0.0151 (13) |
N3 | 0.056 (2) | 0.063 (2) | 0.054 (2) | −0.0059 (18) | 0.0109 (17) | 0.0184 (17) |
C1 | 0.0422 (19) | 0.042 (2) | 0.0394 (18) | 0.0026 (16) | 0.0076 (16) | 0.0070 (16) |
C2 | 0.046 (2) | 0.060 (3) | 0.046 (2) | −0.0011 (19) | 0.0176 (18) | 0.0028 (18) |
C3 | 0.063 (3) | 0.063 (3) | 0.0331 (19) | −0.006 (2) | 0.0128 (19) | 0.0101 (18) |
C4 | 0.055 (3) | 0.058 (3) | 0.036 (2) | −0.0101 (19) | −0.0029 (19) | 0.0129 (19) |
C5 | 0.0341 (18) | 0.055 (2) | 0.040 (2) | −0.0037 (16) | −0.0040 (16) | 0.0079 (18) |
C6 | 0.0357 (18) | 0.037 (2) | 0.0327 (18) | −0.0067 (14) | 0.0004 (15) | 0.0028 (15) |
C7 | 0.0307 (18) | 0.051 (2) | 0.0357 (19) | −0.0024 (16) | 0.0034 (15) | 0.0033 (16) |
C8 | 0.0342 (18) | 0.0392 (19) | 0.0346 (18) | −0.0041 (15) | −0.0024 (16) | 0.0083 (15) |
C9 | 0.0324 (17) | 0.0366 (19) | 0.0346 (18) | −0.0009 (14) | 0.0022 (15) | 0.0044 (15) |
C10 | 0.054 (3) | 0.070 (3) | 0.044 (2) | −0.022 (2) | −0.011 (2) | 0.017 (2) |
C11 | 0.072 (3) | 0.086 (4) | 0.036 (2) | −0.021 (3) | −0.0063 (19) | 0.023 (2) |
C12 | 0.0378 (19) | 0.053 (3) | 0.063 (3) | −0.0039 (17) | 0.0056 (19) | 0.014 (2) |
C13 | 0.0373 (18) | 0.043 (2) | 0.0413 (19) | −0.0026 (15) | −0.0012 (16) | 0.0073 (16) |
C14 | 0.066 (3) | 0.086 (4) | 0.076 (3) | −0.016 (3) | −0.030 (3) | 0.036 (3) |
O1—C4 | 1.366 (4) | C3—H3 | 0.9300 |
O1—C14 | 1.405 (5) | C4—C5 | 1.364 (5) |
O2—C1 | 1.358 (5) | C5—C6 | 1.402 (5) |
O2—H2A | 0.847 (10) | C5—H5 | 0.9300 |
O3—C8 | 1.218 (4) | C6—C7 | 1.456 (5) |
O1S—H1A | 0.856 (10) | C7—H7 | 0.9300 |
O1S—H1B | 0.859 (10) | C8—C9 | 1.487 (4) |
N1—C7 | 1.269 (4) | C9—C13 | 1.374 (5) |
N1—N2 | 1.381 (4) | C9—C10 | 1.374 (5) |
N2—C8 | 1.341 (4) | C10—C11 | 1.367 (6) |
N2—H2' | 0.885 (10) | C10—H10 | 0.9300 |
N3—C12 | 1.315 (5) | C11—H11 | 0.9300 |
N3—C11 | 1.325 (5) | C12—C13 | 1.373 (5) |
C1—C2 | 1.384 (5) | C12—H12 | 0.9300 |
C1—C6 | 1.395 (5) | C13—H13 | 0.9300 |
C2—C3 | 1.357 (6) | C14—H14A | 0.9600 |
C2—H2 | 0.9300 | C14—H14B | 0.9600 |
C3—C4 | 1.388 (6) | C14—H14C | 0.9600 |
C4—O1—C14 | 118.0 (3) | N1—C7—H7 | 119.5 |
C1—O2—H2A | 107 (3) | C6—C7—H7 | 119.5 |
H1A—O1S—H1B | 106 (2) | O3—C8—N2 | 123.8 (3) |
C7—N1—N2 | 116.7 (3) | O3—C8—C9 | 120.9 (3) |
C8—N2—N1 | 118.5 (3) | N2—C8—C9 | 115.3 (3) |
C8—N2—H2' | 118 (3) | C13—C9—C10 | 117.7 (3) |
N1—N2—H2' | 122 (3) | C13—C9—C8 | 122.9 (3) |
C12—N3—C11 | 116.3 (3) | C10—C9—C8 | 119.2 (3) |
O2—C1—C2 | 117.9 (3) | C11—C10—C9 | 119.0 (4) |
O2—C1—C6 | 123.1 (3) | C11—C10—H10 | 120.5 |
C2—C1—C6 | 118.9 (3) | C9—C10—H10 | 120.5 |
C3—C2—C1 | 121.3 (4) | N3—C11—C10 | 124.0 (4) |
C3—C2—H2 | 119.3 | N3—C11—H11 | 118.0 |
C1—C2—H2 | 119.3 | C10—C11—H11 | 118.0 |
C2—C3—C4 | 120.2 (3) | N3—C12—C13 | 124.2 (4) |
C2—C3—H3 | 119.9 | N3—C12—H12 | 117.9 |
C4—C3—H3 | 119.9 | C13—C12—H12 | 117.9 |
C5—C4—O1 | 125.1 (4) | C12—C13—C9 | 118.8 (3) |
C5—C4—C3 | 119.8 (4) | C12—C13—H13 | 120.6 |
O1—C4—C3 | 115.1 (3) | C9—C13—H13 | 120.6 |
C4—C5—C6 | 120.5 (3) | O1—C14—H14A | 109.5 |
C4—C5—H5 | 119.7 | O1—C14—H14B | 109.5 |
C6—C5—H5 | 119.7 | H14A—C14—H14B | 109.5 |
C1—C6—C5 | 119.2 (3) | O1—C14—H14C | 109.5 |
C1—C6—C7 | 122.1 (3) | H14A—C14—H14C | 109.5 |
C5—C6—C7 | 118.7 (3) | H14B—C14—H14C | 109.5 |
N1—C7—C6 | 121.0 (3) | ||
C7—N1—N2—C8 | 179.3 (3) | C1—C6—C7—N1 | 3.1 (5) |
O2—C1—C2—C3 | 179.0 (4) | C5—C6—C7—N1 | −176.8 (3) |
C6—C1—C2—C3 | −0.4 (6) | N1—N2—C8—O3 | 7.1 (6) |
C1—C2—C3—C4 | 1.1 (6) | N1—N2—C8—C9 | −170.4 (3) |
C14—O1—C4—C5 | −8.9 (7) | O3—C8—C9—C13 | −144.0 (4) |
C14—O1—C4—C3 | 171.8 (4) | N2—C8—C9—C13 | 33.6 (5) |
C2—C3—C4—C5 | −1.3 (6) | O3—C8—C9—C10 | 30.2 (6) |
C2—C3—C4—O1 | 178.1 (4) | N2—C8—C9—C10 | −152.3 (4) |
O1—C4—C5—C6 | −178.6 (4) | C13—C9—C10—C11 | −0.2 (6) |
C3—C4—C5—C6 | 0.7 (6) | C8—C9—C10—C11 | −174.6 (4) |
O2—C1—C6—C5 | −179.5 (4) | C12—N3—C11—C10 | −1.9 (7) |
C2—C1—C6—C5 | −0.1 (5) | C9—C10—C11—N3 | 1.6 (7) |
O2—C1—C6—C7 | 0.6 (5) | C11—N3—C12—C13 | 0.9 (6) |
C2—C1—C6—C7 | 180.0 (3) | N3—C12—C13—C9 | 0.4 (6) |
C4—C5—C6—C1 | 0.0 (5) | C10—C9—C13—C12 | −0.7 (5) |
C4—C5—C6—C7 | 179.9 (3) | C8—C9—C13—C12 | 173.5 (3) |
N2—N1—C7—C6 | −177.5 (3) |
D—H···A | D—H | H···A | D···A | D—H···A |
N2—H2′···O1Si | 0.89 (1) | 1.91 (1) | 2.784 (4) | 168 (4) |
O1S—H1A···O3ii | 0.86 (1) | 1.92 (2) | 2.764 (4) | 170 (4) |
O1S—H1B···N3iii | 0.86 (1) | 2.05 (2) | 2.874 (5) | 160 (4) |
O2—H2A···N1 | 0.85 (1) | 1.89 (3) | 2.642 (4) | 147 (4) |
C11—H11···O1iv | 0.93 | 2.46 | 3.370 (5) | 164 |
C14—H14C···O3v | 0.96 | 2.58 | 3.425 (5) | 147 |
Symmetry codes: (i) x−1, y, z; (ii) x+1/2, −y+1/2, z; (iii) −x+1, −y, z−1/2; (iv) −x+1/2, y−1/2, z+3/2; (v) −x+1/2, y+1/2, z−1/2. |
Experimental details
Crystal data | |
Chemical formula | C14H13N3O3·H2O |
Mr | 289.29 |
Crystal system, space group | Orthorhombic, Pna21 |
Temperature (K) | 296 |
a, b, c (Å) | 12.6455 (16), 12.7423 (16), 8.9306 (9) |
V (Å3) | 1439.0 (3) |
Z | 4 |
Radiation type | Mo Kα |
µ (mm−1) | 0.10 |
Crystal size (mm) | 0.40 × 0.30 × 0.25 |
Data collection | |
Diffractometer | Bruker Kappa APEXII CCD diffractometer |
Absorption correction | Multi-scan (SADABS; Bruker, 2004) |
Tmin, Tmax | 0.965, 0.976 |
No. of measured, independent and observed [I > 2σ(I)] reflections | 10294, 1668, 1134 |
Rint | 0.056 |
(sin θ/λ)max (Å−1) | 0.639 |
Refinement | |
R[F2 > 2σ(F2)], wR(F2), S | 0.045, 0.124, 1.00 |
No. of reflections | 1668 |
No. of parameters | 208 |
No. of restraints | 6 |
H-atom treatment | H atoms treated by a mixture of independent and constrained refinement |
Δρmax, Δρmin (e Å−3) | 0.17, −0.15 |
Computer programs: APEX2 (Bruker, 2004), APEX2 and SAINT (Bruker, 2004), SAINT and XPREP (Bruker, 2004), SHELXS97 (Sheldrick, 2008), ORTEP-3 for Windows (Farrugia, 2012) and DIAMOND (Brandenburg, 2010), SHELXL97 (Sheldrick, 2008) and publCIF (Westrip, 2010).
D—H···A | D—H | H···A | D···A | D—H···A |
N2—H2'···O1Si | 0.885 (10) | 1.912 (14) | 2.784 (4) | 168 (4) |
O1S—H1A···O3ii | 0.856 (10) | 1.918 (15) | 2.764 (4) | 170 (4) |
O1S—H1B···N3iii | 0.859 (10) | 2.050 (17) | 2.874 (5) | 160 (4) |
O2—H2A···N1 | 0.847 (10) | 1.89 (3) | 2.642 (4) | 147 (4) |
C11—H11···O1iv | 0.93 | 2.46 | 3.370 (5) | 164 |
C14—H14C···O3v | 0.96 | 2.58 | 3.425 (5) | 147 |
Symmetry codes: (i) x−1, y, z; (ii) x+1/2, −y+1/2, z; (iii) −x+1, −y, z−1/2; (iv) −x+1/2, y−1/2, z+3/2; (v) −x+1/2, y+1/2, z−1/2. |
Acknowledgements
MKP thanks the University Grants Commission, Bangalore, India, for the award of a Teacher Fellowship. MRPK thanks the UGC, New Delhi, for a UGC–BSR one-time grant to Faculty. The authors are grateful to the Sophisticated Analytical Instruments Facility, Cochin University of Science and Technology, Kochi-22, India, for the data collection.
References
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Derivatives of carbohydrazide and their metal complexes exhibit prominent biological activities and versatile binding properties. They also promote the formation of a chelate binding center (Mangalam & Kurup, 2011). Versatile applications in molecular sensing of metals have received substantial interest during the last decade (Bakir & Brown, 2002).
The compound crystallizes in orthorhombic Pna21 space group. The molecule exists in the E configuration with respect to C7=N1 bond (Sithambaresan & Kurup, 2011) which is confirmed by the torsion angle of -177.6 (3)° of C6—C7—N1—N2 moiety (Fig. 1). The torsion angle of 7.2 (5)° corresponding to N1—N2—C8—O3 moiety supports the cis configuration of the O3 atom with respect to the hydrazine nitrogen atom N1 (Kargar et al., 2010; Shafiq et al., 2009). The C7=N1 [1.272 (4) Å] and C8=O3 [1.219 (3) Å] bond distances are very close to the formal C=N and C=O bond lengths [C=N; 1.28 Å and C═O; 1.21 Å] respectively confirming the azomethine bond formation and the existence of carbohydrazide in amido form in solid state.
Incorporation of water molecule in the crystal system of the title compound plays an important role in assembly of the molecules in the lattice through intermolecular hydrogen bonds and makes the crystal system entirely different from the reported one (Kargar et al., 2010). Two classical hydrogen bonds are present in the molecular system (Fig. 2) between the both H atoms of the water molecule and O3 and N3 atoms of the neighbouring molecules with a D···A distances of 2.764 (4) and 2.874 (5) Å respectively. The phenolic oxygen O2 is involved in an intramolecular hydrogen bond with N1 to form a six membered ring. The hydrazinic nitrogen N2 is also involved in hydrogen bonding with oxygen of solvent water. Two non- classical C–H···O hydrogen bonds are also present in the molecule (Table 1). The packing diagram showing the molecular assembly of the title compound along a axis is shown in Fig. 3.