organic compounds
N′-[(E)-4-Benzyloxy-2-hydroxybenzylidene]-4-nitrobenzohydrazide monohydrate
aDepartment of Applied Chemistry, Cochin University of Science and Technology, Kochi 682 022, India, and bDepartment of Chemistry, Faculty of Science, Eastern University, Sri Lanka, Chenkalady, Sri Lanka
*Correspondence e-mail: eesans@yahoo.com
The title compound, C21H17N3O5·H2O, exists in the keto form with an E conformation with respect to the azomethine double bond. The twist angles between the aromatic rings are in the range 4.67 (10)–17.54 (10)°. A water molecule of solvation is present in the lattice. A conventional intramolecular O—H⋯N hydrogen bond increases the rigidity of the molecule. Intermolecular O—H⋯O, N—H⋯O and C—H⋯O hydrogen-bonding interactions establish a supramolecular linkage among the molecules in the There are also C—H⋯π interactions present.
Related literature
For the biological and other applications of carbohydrazides, see: Lakshmi et al. (2011); Grande et al. (2007); Naseema et al. (2010). For the synthesis, see: Emmanuel et al. (2011). For related structures of carbohydrazides, see: Fun et al. (2008). For the keto form, see: Bakir & Brown (2002).
Experimental
Crystal data
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Refinement
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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 (Farrugia, 1997) and DIAMOND (Brandenburg, 2010); software used to prepare material for publication: SHELXL97 and publCIF (Westrip, 2010).
Supporting information
10.1107/S1600536812015401/fj2537sup1.cif
contains datablocks global, I. DOI:Structure factors: contains datablock I. DOI: 10.1107/S1600536812015401/fj2537Isup2.hkl
Supporting information file. DOI: 10.1107/S1600536812015401/fj2537Isup3.cml
The title compound was prepared by adapting a reported procedure (Emmanuel et al., 2011) by refluxing a mixture of methanolic solutions of 4-nitrobenzohydrazide (0.181 g, 1 mmol) and 4-(benzyloxy)-2-hydroxybenzaldehyde (0.228 g, 1 mmol) for 4 h. The formed crystals were collected, washed with few drops of methanol and dried over P4O10 in vacuo. Single crystals of the title compound suitable for X-ray analysis were obtained by slow evaporation from its methanolic solution.
All H atoms on C were placed in calculated positions, guided by difference maps, with C—H bond distances 0.93–0.97 Å. H atoms were assigned as Uiso=1.2 Ueq. N2—H2N and O4—H4O (0.86 Å) H atoms were located from difference maps and restrained using DFIX instructions. The O1S—H1S and O1S—H2S (0.86 Å) H atoms of the water molecule is also located from difference maps and restrained using DFIX and DANG instructions.
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 (Farrugia, 1997) and DIAMOND (Brandenburg, 2010); software used to prepare material for publication: SHELXL97 (Sheldrick, 2008) and publCIF (Westrip, 2010).Fig. 1. ORTEP view of the molecular structure of the title compound, along with the atom-labelling, drawn with 50% probability displacement ellipsoids. | |
Fig. 2. A view of the conventional and non-conventional hydrogen bonding interactions | |
Fig. 3. Graphical representation showing C–H···π interaction in the crystal structure of C21H17N3O5.H2O. | |
Fig. 4. Packing arrangement of molecules along a axis. |
C21H17N3O5·H2O | F(000) = 428.0 |
Mr = 409.39 | Dx = 1.413 Mg m−3 |
Monoclinic, Pc | Mo Kα radiation, λ = 0.71073 Å |
Hall symbol: P -2yc | Cell parameters from 4698 reflections |
a = 4.6275 (7) Å | θ = 3.1–28.2° |
b = 6.5332 (11) Å | µ = 0.11 mm−1 |
c = 31.856 (5) Å | T = 296 K |
β = 92.417 (4)° | Block, yellow |
V = 962.2 (3) Å3 | 0.30 × 0.28 × 0.25 mm |
Z = 2 |
Bruker Kappa APEXII CCD diffractometer | 1713 independent reflections |
Radiation source: fine-focus sealed tube | 1663 reflections with I > 2σ(I) |
Graphite monochromator | Rint = 0.020 |
ω and ϕ scan | θmax = 25.0°, θmin = 3.1° |
Absorption correction: multi-scan (SADABS; Bruker, 2004) | h = −3→5 |
Tmin = 0.969, Tmax = 0.974 | k = −7→7 |
7388 measured reflections | l = −37→37 |
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)] = 0.030 | H atoms treated by a mixture of independent and constrained refinement |
wR(F2) = 0.088 | w = 1/[σ2(Fo2) + (0.0687P)2 + 0.0484P] where P = (Fo2 + 2Fc2)/3 |
S = 1.05 | (Δ/σ)max = 0.011 |
1713 reflections | Δρmax = 0.14 e Å−3 |
288 parameters | Δρmin = −0.16 e Å−3 |
7 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: 0.021 (7) |
C21H17N3O5·H2O | V = 962.2 (3) Å3 |
Mr = 409.39 | Z = 2 |
Monoclinic, Pc | Mo Kα radiation |
a = 4.6275 (7) Å | µ = 0.11 mm−1 |
b = 6.5332 (11) Å | T = 296 K |
c = 31.856 (5) Å | 0.30 × 0.28 × 0.25 mm |
β = 92.417 (4)° |
Bruker Kappa APEXII CCD diffractometer | 1713 independent reflections |
Absorption correction: multi-scan (SADABS; Bruker, 2004) | 1663 reflections with I > 2σ(I) |
Tmin = 0.969, Tmax = 0.974 | Rint = 0.020 |
7388 measured reflections |
R[F2 > 2σ(F2)] = 0.030 | 7 restraints |
wR(F2) = 0.088 | H atoms treated by a mixture of independent and constrained refinement |
S = 1.05 | Δρmax = 0.14 e Å−3 |
1713 reflections | Δρmin = −0.16 e Å−3 |
288 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 | −0.5580 (7) | 0.1667 (5) | 0.47190 (9) | 0.0986 (10) | |
O2 | −0.5671 (7) | 0.4470 (5) | 0.50699 (9) | 0.0960 (9) | |
O3 | 0.3371 (5) | 0.9071 (3) | 0.37071 (7) | 0.0673 (6) | |
O4 | 0.8452 (4) | 1.0067 (3) | 0.26751 (6) | 0.0537 (5) | |
O5 | 1.4446 (4) | 0.8132 (2) | 0.15654 (5) | 0.0428 (4) | |
O1S | 0.3303 (5) | 0.1942 (3) | 0.31076 (7) | 0.0596 (5) | |
N1 | −0.4868 (6) | 0.3450 (5) | 0.47795 (8) | 0.0623 (7) | |
N2 | 0.3751 (4) | 0.6173 (3) | 0.33257 (6) | 0.0380 (4) | |
N3 | 0.5600 (4) | 0.7064 (3) | 0.30472 (6) | 0.0370 (4) | |
C1 | 1.8112 (6) | 0.8824 (4) | 0.09200 (9) | 0.0507 (6) | |
H1 | 1.7528 | 0.7502 | 0.0983 | 0.061* | |
C2 | 2.0020 (6) | 0.9151 (5) | 0.05996 (9) | 0.0593 (8) | |
H2 | 2.0703 | 0.8044 | 0.0449 | 0.071* | |
C3 | 2.0894 (6) | 1.1089 (5) | 0.05048 (9) | 0.0589 (8) | |
H3 | 2.2186 | 1.1292 | 0.0293 | 0.071* | |
C4 | 1.9873 (6) | 1.2742 (5) | 0.07214 (9) | 0.0600 (7) | |
H4 | 2.0454 | 1.4061 | 0.0654 | 0.072* | |
C5 | 1.7976 (6) | 1.2430 (4) | 0.10394 (9) | 0.0508 (6) | |
H5 | 1.7282 | 1.3546 | 0.1186 | 0.061* | |
C6 | 1.7094 (4) | 1.0458 (4) | 0.11423 (7) | 0.0377 (5) | |
C7 | 1.5050 (5) | 1.0238 (4) | 0.14926 (7) | 0.0391 (5) | |
H7A | 1.5901 | 1.0846 | 0.1747 | 0.047* | |
H7B | 1.3264 | 1.0957 | 0.1421 | 0.047* | |
C8 | 1.2534 (4) | 0.7701 (4) | 0.18637 (7) | 0.0355 (5) | |
C9 | 1.1417 (5) | 0.9148 (3) | 0.21297 (7) | 0.0371 (5) | |
H9 | 1.1963 | 1.0513 | 0.2108 | 0.044* | |
C10 | 0.9484 (4) | 0.8566 (4) | 0.24291 (7) | 0.0345 (5) | |
C11 | 0.8636 (4) | 0.6529 (4) | 0.24699 (7) | 0.0346 (5) | |
C12 | 0.9782 (5) | 0.5107 (4) | 0.21932 (8) | 0.0430 (5) | |
H12 | 0.9233 | 0.3742 | 0.2212 | 0.052* | |
C13 | 1.1688 (5) | 0.5665 (4) | 0.18961 (8) | 0.0434 (5) | |
H13 | 1.2415 | 0.4686 | 0.1717 | 0.052* | |
C14 | 0.6665 (5) | 0.5843 (4) | 0.27812 (7) | 0.0388 (5) | |
H14 | 0.6156 | 0.4467 | 0.2788 | 0.047* | |
C15 | 0.2747 (5) | 0.7263 (4) | 0.36431 (8) | 0.0405 (5) | |
C16 | 0.0762 (5) | 0.6172 (4) | 0.39327 (7) | 0.0382 (5) | |
C17 | −0.0090 (6) | 0.7250 (4) | 0.42798 (8) | 0.0522 (6) | |
H17 | 0.0583 | 0.8576 | 0.4326 | 0.063* | |
C18 | −0.1943 (6) | 0.6370 (5) | 0.45600 (8) | 0.0567 (7) | |
H18 | −0.2526 | 0.7092 | 0.4793 | 0.068* | |
C19 | −0.2898 (5) | 0.4403 (4) | 0.44837 (7) | 0.0452 (6) | |
C20 | −0.2096 (6) | 0.3294 (4) | 0.41418 (9) | 0.0524 (6) | |
H20 | −0.2769 | 0.1967 | 0.4098 | 0.063* | |
C21 | −0.0266 (6) | 0.4198 (4) | 0.38649 (8) | 0.0494 (6) | |
H21 | 0.0285 | 0.3474 | 0.3630 | 0.059* | |
H1S | 0.325 (10) | 0.105 (6) | 0.3313 (11) | 0.096 (14)* | |
H2S | 0.169 (6) | 0.160 (6) | 0.2975 (12) | 0.099 (14)* | |
H2N | 0.336 (6) | 0.489 (3) | 0.3287 (9) | 0.046 (7)* | |
H4O | 0.730 (7) | 0.958 (7) | 0.2853 (11) | 0.090 (13)* |
U11 | U22 | U33 | U12 | U13 | U23 | |
O1 | 0.123 (2) | 0.097 (2) | 0.0791 (17) | −0.0492 (18) | 0.0467 (15) | −0.0001 (15) |
O2 | 0.1081 (19) | 0.108 (2) | 0.0771 (16) | −0.0053 (17) | 0.0631 (14) | −0.0006 (15) |
O3 | 0.1030 (17) | 0.0439 (11) | 0.0571 (11) | −0.0205 (10) | 0.0283 (10) | −0.0053 (9) |
O4 | 0.0609 (11) | 0.0409 (10) | 0.0623 (11) | −0.0109 (8) | 0.0384 (9) | −0.0097 (8) |
O5 | 0.0446 (8) | 0.0385 (9) | 0.0470 (9) | 0.0009 (8) | 0.0217 (7) | 0.0040 (7) |
O1S | 0.0790 (14) | 0.0383 (9) | 0.0638 (12) | −0.0155 (9) | 0.0283 (10) | −0.0050 (9) |
N1 | 0.0571 (14) | 0.0820 (19) | 0.0491 (12) | −0.0043 (13) | 0.0172 (11) | 0.0143 (13) |
N2 | 0.0434 (10) | 0.0318 (10) | 0.0400 (10) | −0.0066 (8) | 0.0150 (8) | 0.0050 (8) |
N3 | 0.0357 (10) | 0.0364 (10) | 0.0398 (10) | −0.0075 (8) | 0.0127 (7) | 0.0060 (8) |
C1 | 0.0523 (14) | 0.0453 (14) | 0.0560 (15) | −0.0009 (12) | 0.0202 (12) | 0.0008 (11) |
C2 | 0.0609 (17) | 0.065 (2) | 0.0547 (15) | 0.0085 (14) | 0.0296 (13) | −0.0029 (13) |
C3 | 0.0500 (14) | 0.081 (2) | 0.0477 (14) | 0.0040 (14) | 0.0227 (11) | 0.0143 (15) |
C4 | 0.0598 (16) | 0.0594 (17) | 0.0624 (17) | −0.0058 (14) | 0.0212 (13) | 0.0237 (15) |
C5 | 0.0517 (14) | 0.0444 (14) | 0.0579 (14) | 0.0025 (11) | 0.0195 (11) | 0.0093 (12) |
C6 | 0.0303 (10) | 0.0455 (12) | 0.0378 (11) | 0.0008 (10) | 0.0089 (9) | 0.0078 (10) |
C7 | 0.0378 (11) | 0.0382 (12) | 0.0420 (12) | 0.0016 (10) | 0.0118 (9) | 0.0024 (10) |
C8 | 0.0334 (11) | 0.0391 (12) | 0.0346 (10) | 0.0020 (9) | 0.0097 (8) | 0.0037 (9) |
C9 | 0.0390 (11) | 0.0304 (11) | 0.0426 (12) | −0.0034 (9) | 0.0106 (9) | 0.0016 (9) |
C10 | 0.0353 (11) | 0.0327 (12) | 0.0362 (11) | −0.0026 (9) | 0.0100 (8) | −0.0011 (9) |
C11 | 0.0312 (10) | 0.0356 (12) | 0.0374 (11) | −0.0039 (9) | 0.0066 (9) | 0.0019 (9) |
C12 | 0.0457 (12) | 0.0300 (11) | 0.0542 (14) | −0.0021 (10) | 0.0139 (10) | 0.0002 (10) |
C13 | 0.0454 (12) | 0.0365 (12) | 0.0497 (12) | 0.0018 (10) | 0.0174 (10) | −0.0052 (10) |
C14 | 0.0382 (11) | 0.0338 (12) | 0.0452 (12) | −0.0049 (9) | 0.0102 (10) | 0.0073 (9) |
C15 | 0.0459 (12) | 0.0373 (12) | 0.0389 (11) | −0.0050 (10) | 0.0095 (9) | 0.0028 (10) |
C16 | 0.0393 (11) | 0.0419 (12) | 0.0341 (11) | 0.0032 (10) | 0.0082 (9) | 0.0054 (9) |
C17 | 0.0611 (16) | 0.0511 (15) | 0.0455 (13) | −0.0088 (13) | 0.0140 (11) | −0.0051 (12) |
C18 | 0.0648 (16) | 0.0659 (17) | 0.0409 (13) | −0.0006 (14) | 0.0201 (11) | −0.0074 (13) |
C19 | 0.0388 (12) | 0.0614 (17) | 0.0362 (12) | 0.0002 (11) | 0.0100 (9) | 0.0102 (11) |
C20 | 0.0569 (15) | 0.0443 (14) | 0.0575 (15) | −0.0059 (12) | 0.0198 (12) | 0.0053 (12) |
C21 | 0.0580 (15) | 0.0452 (14) | 0.0468 (13) | −0.0061 (12) | 0.0232 (11) | −0.0028 (11) |
O1—N1 | 1.224 (4) | C6—C7 | 1.500 (3) |
O2—N1 | 1.211 (4) | C7—H7A | 0.9700 |
O3—C15 | 1.231 (3) | C7—H7B | 0.9700 |
O4—C10 | 1.355 (3) | C8—C9 | 1.384 (3) |
O4—H4O | 0.86 (2) | C8—C13 | 1.392 (4) |
O5—C8 | 1.355 (3) | C9—C10 | 1.388 (3) |
O5—C7 | 1.425 (3) | C9—H9 | 0.9300 |
O1S—H1S | 0.88 (2) | C10—C11 | 1.395 (3) |
O1S—H2S | 0.873 (19) | C11—C12 | 1.400 (3) |
N1—C19 | 1.476 (3) | C11—C14 | 1.446 (3) |
N2—C15 | 1.336 (3) | C12—C13 | 1.370 (3) |
N2—N3 | 1.386 (3) | C12—H12 | 0.9300 |
N2—H2N | 0.863 (19) | C13—H13 | 0.9300 |
N3—C14 | 1.277 (3) | C14—H14 | 0.9300 |
C1—C6 | 1.375 (4) | C15—C16 | 1.508 (3) |
C1—C2 | 1.394 (4) | C16—C17 | 1.383 (4) |
C1—H1 | 0.9300 | C16—C21 | 1.388 (4) |
C2—C3 | 1.367 (5) | C17—C18 | 1.388 (4) |
C2—H2 | 0.9300 | C17—H17 | 0.9300 |
C3—C4 | 1.376 (5) | C18—C19 | 1.377 (4) |
C3—H3 | 0.9300 | C18—H18 | 0.9300 |
C4—C5 | 1.383 (4) | C19—C20 | 1.372 (4) |
C4—H4 | 0.9300 | C20—C21 | 1.381 (4) |
C5—C6 | 1.394 (3) | C20—H20 | 0.9300 |
C5—H5 | 0.9300 | C21—H21 | 0.9300 |
C10—O4—H4O | 111 (3) | C8—C9—H9 | 119.9 |
C8—O5—C7 | 116.93 (17) | C10—C9—H9 | 119.9 |
H1S—O1S—H2S | 98 (3) | O4—C10—C9 | 116.9 (2) |
O2—N1—O1 | 123.7 (3) | O4—C10—C11 | 122.0 (2) |
O2—N1—C19 | 118.2 (3) | C9—C10—C11 | 121.2 (2) |
O1—N1—C19 | 118.0 (3) | C10—C11—C12 | 117.30 (19) |
C15—N2—N3 | 120.28 (19) | C10—C11—C14 | 123.2 (2) |
C15—N2—H2N | 123 (2) | C12—C11—C14 | 119.5 (2) |
N3—N2—H2N | 117 (2) | C13—C12—C11 | 122.0 (2) |
C14—N3—N2 | 115.35 (19) | C13—C12—H12 | 119.0 |
C6—C1—C2 | 120.0 (3) | C11—C12—H12 | 119.0 |
C6—C1—H1 | 120.0 | C12—C13—C8 | 119.8 (2) |
C2—C1—H1 | 120.0 | C12—C13—H13 | 120.1 |
C3—C2—C1 | 120.4 (3) | C8—C13—H13 | 120.1 |
C3—C2—H2 | 119.8 | N3—C14—C11 | 122.3 (2) |
C1—C2—H2 | 119.8 | N3—C14—H14 | 118.9 |
C2—C3—C4 | 120.3 (2) | C11—C14—H14 | 118.9 |
C2—C3—H3 | 119.8 | O3—C15—N2 | 123.4 (2) |
C4—C3—H3 | 119.8 | O3—C15—C16 | 119.8 (2) |
C3—C4—C5 | 119.6 (3) | N2—C15—C16 | 116.8 (2) |
C3—C4—H4 | 120.2 | C17—C16—C21 | 119.4 (2) |
C5—C4—H4 | 120.2 | C17—C16—C15 | 116.8 (2) |
C4—C5—C6 | 120.6 (3) | C21—C16—C15 | 123.9 (2) |
C4—C5—H5 | 119.7 | C16—C17—C18 | 120.5 (3) |
C6—C5—H5 | 119.7 | C16—C17—H17 | 119.7 |
C1—C6—C5 | 119.1 (2) | C18—C17—H17 | 119.7 |
C1—C6—C7 | 123.3 (2) | C19—C18—C17 | 118.4 (2) |
C5—C6—C7 | 117.6 (2) | C19—C18—H18 | 120.8 |
O5—C7—C6 | 110.37 (19) | C17—C18—H18 | 120.8 |
O5—C7—H7A | 109.6 | C20—C19—C18 | 122.5 (2) |
C6—C7—H7A | 109.6 | C20—C19—N1 | 118.6 (2) |
O5—C7—H7B | 109.6 | C18—C19—N1 | 118.9 (2) |
C6—C7—H7B | 109.6 | C19—C20—C21 | 118.4 (2) |
H7A—C7—H7B | 108.1 | C19—C20—H20 | 120.8 |
O5—C8—C9 | 124.0 (2) | C21—C20—H20 | 120.8 |
O5—C8—C13 | 116.4 (2) | C20—C21—C16 | 120.9 (2) |
C9—C8—C13 | 119.6 (2) | C20—C21—H21 | 119.6 |
C8—C9—C10 | 120.1 (2) | C16—C21—H21 | 119.6 |
C15—N2—N3—C14 | 173.2 (2) | O5—C8—C13—C12 | 179.4 (2) |
C6—C1—C2—C3 | 0.1 (5) | C9—C8—C13—C12 | −0.6 (4) |
C1—C2—C3—C4 | −0.8 (5) | N2—N3—C14—C11 | −179.85 (19) |
C2—C3—C4—C5 | 0.7 (5) | C10—C11—C14—N3 | −1.3 (3) |
C3—C4—C5—C6 | 0.1 (4) | C12—C11—C14—N3 | 178.5 (2) |
C2—C1—C6—C5 | 0.6 (4) | N3—N2—C15—O3 | 0.1 (4) |
C2—C1—C6—C7 | −179.7 (3) | N3—N2—C15—C16 | −179.66 (19) |
C4—C5—C6—C1 | −0.7 (4) | O3—C15—C16—C17 | −4.8 (4) |
C4—C5—C6—C7 | 179.6 (2) | N2—C15—C16—C17 | 175.0 (2) |
C8—O5—C7—C6 | −177.51 (18) | O3—C15—C16—C21 | 174.1 (3) |
C1—C6—C7—O5 | 2.1 (3) | N2—C15—C16—C21 | −6.2 (3) |
C5—C6—C7—O5 | −178.1 (2) | C21—C16—C17—C18 | 0.3 (4) |
C7—O5—C8—C9 | −7.7 (3) | C15—C16—C17—C18 | 179.2 (2) |
C7—O5—C8—C13 | 172.3 (2) | C16—C17—C18—C19 | 0.2 (4) |
O5—C8—C9—C10 | −179.4 (2) | C17—C18—C19—C20 | −0.3 (4) |
C13—C8—C9—C10 | 0.5 (3) | C17—C18—C19—N1 | 180.0 (2) |
C8—C9—C10—O4 | −179.2 (2) | O2—N1—C19—C20 | −176.7 (3) |
C8—C9—C10—C11 | 0.2 (3) | O1—N1—C19—C20 | 3.9 (4) |
O4—C10—C11—C12 | 178.5 (2) | O2—N1—C19—C18 | 3.0 (4) |
C9—C10—C11—C12 | −0.9 (3) | O1—N1—C19—C18 | −176.4 (3) |
O4—C10—C11—C14 | −1.6 (3) | C18—C19—C20—C21 | −0.1 (4) |
C9—C10—C11—C14 | 179.0 (2) | N1—C19—C20—C21 | 179.6 (2) |
C10—C11—C12—C13 | 0.8 (3) | C19—C20—C21—C16 | 0.6 (4) |
C14—C11—C12—C13 | −179.1 (2) | C17—C16—C21—C20 | −0.7 (4) |
C11—C12—C13—C8 | −0.1 (4) | C15—C16—C21—C20 | −179.6 (2) |
Cg is the centroid of the C1–C6 ring |
D—H···A | D—H | H···A | D···A | D—H···A |
O4—H4O···O1Si | 0.86 (2) | 2.57 (4) | 3.058 (3) | 117 (4) |
O4—H4O···N3 | 0.86 (2) | 1.93 (3) | 2.670 (2) | 143 (4) |
N2—H2N···O1S | 0.86 (2) | 2.01 (2) | 2.855 (3) | 166 (3) |
O1S—H2S···O4ii | 0.87 (2) | 2.01 (2) | 2.860 (3) | 165 (4) |
O1S—H1S···O3iii | 0.88 (2) | 1.80 (2) | 2.676 (3) | 175 (5) |
C14—H14···O1S | 0.93 | 2.37 | 3.184 (2) | 146 |
C21—H21···O1S | 0.93 | 2.43 | 3.325 (3) | 161 |
C7—H7B···Cgiv | 0.97 | 2.69 | 3.472 (2) | 138 |
Symmetry codes: (i) x, y+1, z; (ii) x−1, y−1, z; (iii) x, y−1, z; (iv) x−1, y, z. |
Experimental details
Crystal data | |
Chemical formula | C21H17N3O5·H2O |
Mr | 409.39 |
Crystal system, space group | Monoclinic, Pc |
Temperature (K) | 296 |
a, b, c (Å) | 4.6275 (7), 6.5332 (11), 31.856 (5) |
β (°) | 92.417 (4) |
V (Å3) | 962.2 (3) |
Z | 2 |
Radiation type | Mo Kα |
µ (mm−1) | 0.11 |
Crystal size (mm) | 0.30 × 0.28 × 0.25 |
Data collection | |
Diffractometer | Bruker Kappa APEXII CCD diffractometer |
Absorption correction | Multi-scan (SADABS; Bruker, 2004) |
Tmin, Tmax | 0.969, 0.974 |
No. of measured, independent and observed [I > 2σ(I)] reflections | 7388, 1713, 1663 |
Rint | 0.020 |
(sin θ/λ)max (Å−1) | 0.595 |
Refinement | |
R[F2 > 2σ(F2)], wR(F2), S | 0.030, 0.088, 1.05 |
No. of reflections | 1713 |
No. of parameters | 288 |
No. of restraints | 7 |
H-atom treatment | H atoms treated by a mixture of independent and constrained refinement |
Δρmax, Δρmin (e Å−3) | 0.14, −0.16 |
Computer programs: APEX2 (Bruker, 2004), APEX2 and SAINT (Bruker, 2004), SAINT and XPREP (Bruker, 2004), SHELXS97 (Sheldrick, 2008), ORTEP-3 (Farrugia, 1997) and DIAMOND (Brandenburg, 2010), SHELXL97 (Sheldrick, 2008) and publCIF (Westrip, 2010).
Cg is the centroid of the C1–C6 ring |
D—H···A | D—H | H···A | D···A | D—H···A |
O4—H4O···O1Si | 0.86 (2) | 2.57 (4) | 3.058 (3) | 117 (4) |
O4—H4O···N3 | 0.86 (2) | 1.93 (3) | 2.670 (2) | 143 (4) |
N2—H2N···O1S | 0.863 (19) | 2.01 (2) | 2.855 (3) | 166 (3) |
O1S—H2S···O4ii | 0.873 (19) | 2.01 (2) | 2.860 (3) | 165 (4) |
O1S—H1S···O3iii | 0.88 (2) | 1.80 (2) | 2.676 (3) | 175 (5) |
C14—H14···O1S | 0.9305 | 2.3709 | 3.184 (2) | 146 |
C21—H21···O1S | 0.9293 | 2.4331 | 3.325 (3) | 161 |
C7—H7B···Cgiv | 0.97 | 2.69 | 3.472 (2) | 138 |
Symmetry codes: (i) x, y+1, z; (ii) x−1, y−1, z; (iii) x, y−1, z; (iv) x−1, y, z. |
Acknowledgements
BJ is grateful to the Council for Scientific and Industrial Research, New Delhi, India, for the award of a Senior Research Fellowship. The authors also thank the Sophisticated Analytical Instument Facility, Cochin University of Science & Technology, Kochi-22, for providing the single-crystal X-ray diffraction data.
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.
There is growing interest in the structural features of carbohydrazides as they show a wide range of biological activities, with potential uses in antibacterial, antifungal and anticancer studies (Lakshmi et al., 2011; Grande et al., 2007). Hydrazones and their metal complexes have found applications in chemical processes like non linear optics, sensors etc. (Naseema et al., 2010).
The title compound N'-{(E)-[4-(benzyloxy)-2-hydroxyphenyl]methylidene}-4-nitrobenzohydrazide hydrate is found to exist in the E configuration with respect to N3=C14 bond. A perspective view of the molecular structure of the title compound, along with the atom-labeling is shown in Fig. 1. The bond length of C15=O3 [1.229 (2) Å] shows a significant double-bond character (Fun et al.., 2008) indicating that the molecule exists in the keto form in the solid state (Bakir & Brown, 2002) and the dihedral angles between the aromatic rings are in the range of 4.67 (10) -17.54 (10)°.
The lattice water molecule plays an essential role in packing of the molecules forming conventional and non-conventional hydrogen bonds between the carbohydrazide and water molecules (Fig. 2). A C–H···π interaction is also observed in the crystal structure between one of the H atoms attached to the C7 carbon atom and the phenyl ring of the adjacent molecule in the crystal system (Fig. 3). Two types of very weak π–π interactions also present with a shortest centroid-centroid distance of 4.9302 (14) Å. In crystal packing, the parallel arrangement of the molecules along a axis is shown in Fig. 4.