organic compounds
(E)-N′-[(2-Hydroxy-1-naphthyl)methylene]benzohydrazide monohydrate
aDongchang College, Liaocheng University, Liaocheng, 250059, People's Republic of China
*Correspondence e-mail: konglingqian08@163.com
In the title compound, C18H14N2O2·H2O, the dihedral angle between the benzene ring and the naphthalene system is 5.18 (10)°. Intramolecular N—H⋯O hydrogen bonds influence the In the crystal, intermolecular N—H⋯O and O—H⋯O hydrogen bonds are observed as well as π–π interactions between the phenyl ring and the substituted ring of the naphthalene [centroid–centroid distance = 3.676 (11) Å].
Related literature
For background to ); Jeewoth et al. (1999). For their biological activity, see: Das et al. (1999). For related structures, see: Fun et al.(2008); Nie (2008).
in coordination chemistry, see: Chakraborty & Patel (1996Experimental
Crystal data
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Refinement
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Data collection: SMART (Siemens, 1996); cell SAINT (Siemens, 1996); data reduction: SAINT; program(s) used to solve structure: SHELXS97 (Sheldrick, 2008); program(s) used to refine structure: SHELXL97 (Sheldrick, 2008); molecular graphics: SHELXTL (Sheldrick, 2008); software used to prepare material for publication: SHELXTL .
Supporting information
10.1107/S160053680905212X/bq2175sup1.cif
contains datablocks I, global. DOI:Structure factors: contains datablock I. DOI: 10.1107/S160053680905212X/bq2175Isup2.hkl
2-Hydroxy-1-naphthaldehyde (3 mmol), benzohydrazide (3 mmol) and 10 ml methanol were mixed in 50 ml flask. After stirring 30 min at 373 K, the resulting mixture was recrystalized from methanol, affording the title compound as a colorless crystalline solid. Elemental analysis: calculated for C18H16N2O3: C 70.12, H 5.23, N 9.09%; found: C 70.18, H 5.15, N 9.14%.
All H atoms, except the H atoms of H2O, were placed in geometrically idealized positions (O—H = 0.82, N—H 0.86 and C—H 0.93 Å) and treated as riding on their parent atoms, with Uiso(H) = 1.2–1.5 Ueq(C, N, O) (C,N, O). Meanwhile, The H atoms of free water molecule were placed in geometrically idealized positions (O—H = 0.85 Å) and treated as riding on O atom, with Uiso(H) = 1.2Ueq(O) (O).
Data collection: SMART (Siemens, 1996); cell
SAINT (Siemens, 1996); data reduction: SAINT (Siemens, 1996); program(s) used to solve structure: SHELXS97 (Sheldrick, 2008); program(s) used to refine structure: SHELXL97 (Sheldrick, 2008); molecular graphics: SHELXTL (Sheldrick, 2008); software used to prepare material for publication: SHELXTL (Sheldrick, 2008).C18H14N2O2·H2O | F(000) = 648 |
Mr = 308.33 | Dx = 1.353 Mg m−3 |
Monoclinic, P21/c | Mo Kα radiation, λ = 0.71073 Å |
Hall symbol: -P 2ybc | Cell parameters from 2137 reflections |
a = 16.346 (6) Å | θ = 2.7–26.8° |
b = 7.192 (3) Å | µ = 0.09 mm−1 |
c = 13.880 (5) Å | T = 298 K |
β = 111.949 (4)° | Block, colourless |
V = 1513.5 (10) Å3 | 0.50 × 0.48 × 0.43 mm |
Z = 4 |
Bruker SMART APEX CCD area-detector diffractometer | 2669 independent reflections |
Radiation source: fine-focus sealed tube | 1648 reflections with I > 2σ(I) |
Graphite monochromator | Rint = 0.027 |
phi and ω scans | θmax = 25.0°, θmin = 1.3° |
Absorption correction: multi-scan (SADABS; Sheldrick, 1996) | h = −9→19 |
Tmin = 0.955, Tmax = 0.961 | k = −8→8 |
7296 measured reflections | l = −16→13 |
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)] = 0.046 | Hydrogen site location: inferred from neighbouring sites |
wR(F2) = 0.148 | H-atom parameters constrained |
S = 1.07 | w = 1/[σ2(Fo2) + (0.0594P)2 + 0.5603P] where P = (Fo2 + 2Fc2)/3 |
2669 reflections | (Δ/σ)max = 0.001 |
208 parameters | Δρmax = 0.25 e Å−3 |
0 restraints | Δρmin = −0.21 e Å−3 |
C18H14N2O2·H2O | V = 1513.5 (10) Å3 |
Mr = 308.33 | Z = 4 |
Monoclinic, P21/c | Mo Kα radiation |
a = 16.346 (6) Å | µ = 0.09 mm−1 |
b = 7.192 (3) Å | T = 298 K |
c = 13.880 (5) Å | 0.50 × 0.48 × 0.43 mm |
β = 111.949 (4)° |
Bruker SMART APEX CCD area-detector diffractometer | 2669 independent reflections |
Absorption correction: multi-scan (SADABS; Sheldrick, 1996) | 1648 reflections with I > 2σ(I) |
Tmin = 0.955, Tmax = 0.961 | Rint = 0.027 |
7296 measured reflections |
R[F2 > 2σ(F2)] = 0.046 | 0 restraints |
wR(F2) = 0.148 | H-atom parameters constrained |
S = 1.07 | Δρmax = 0.25 e Å−3 |
2669 reflections | Δρmin = −0.21 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 | ||
N1 | 0.03568 (12) | 0.2307 (3) | 0.50343 (16) | 0.0462 (5) | |
H1 | 0.0334 | 0.2363 | 0.5643 | 0.055* | |
N2 | 0.11241 (12) | 0.1782 (3) | 0.49103 (16) | 0.0482 (5) | |
O1 | −0.03364 (11) | 0.2630 (3) | 0.33109 (14) | 0.0679 (6) | |
O2 | 0.21163 (12) | 0.1127 (3) | 0.38534 (13) | 0.0711 (6) | |
H2 | 0.1675 | 0.1496 | 0.3941 | 0.107* | |
O3 | 0.06076 (12) | 0.1282 (3) | 0.71458 (14) | 0.0790 (6) | |
H3C | 0.0524 | 0.0128 | 0.7015 | 0.095* | |
H3D | 0.0312 | 0.1610 | 0.7507 | 0.095* | |
C1 | −0.03525 (15) | 0.2726 (3) | 0.41878 (19) | 0.0437 (6) | |
C2 | −0.11669 (14) | 0.3308 (3) | 0.43458 (18) | 0.0407 (6) | |
C3 | −0.12564 (16) | 0.3358 (4) | 0.5298 (2) | 0.0513 (6) | |
H3 | −0.0784 | 0.3025 | 0.5897 | 0.062* | |
C4 | −0.20439 (17) | 0.3902 (4) | 0.5361 (2) | 0.0602 (7) | |
H4 | −0.2100 | 0.3933 | 0.6003 | 0.072* | |
C5 | −0.27411 (17) | 0.4393 (4) | 0.4486 (2) | 0.0594 (7) | |
H5 | −0.3271 | 0.4755 | 0.4534 | 0.071* | |
C6 | −0.26626 (17) | 0.4356 (4) | 0.3545 (2) | 0.0615 (7) | |
H6 | −0.3140 | 0.4691 | 0.2951 | 0.074* | |
C7 | −0.18785 (16) | 0.3825 (3) | 0.34665 (19) | 0.0531 (6) | |
H7 | −0.1827 | 0.3814 | 0.2821 | 0.064* | |
C8 | 0.17844 (15) | 0.1408 (3) | 0.5745 (2) | 0.0466 (6) | |
H8 | 0.1727 | 0.1529 | 0.6384 | 0.056* | |
C9 | 0.26175 (14) | 0.0802 (3) | 0.57090 (18) | 0.0412 (6) | |
C10 | 0.27378 (16) | 0.0654 (3) | 0.47759 (19) | 0.0496 (6) | |
C11 | 0.35283 (17) | −0.0052 (4) | 0.4732 (2) | 0.0592 (7) | |
H11 | 0.3601 | −0.0117 | 0.4100 | 0.071* | |
C12 | 0.41789 (17) | −0.0633 (4) | 0.5610 (2) | 0.0559 (7) | |
H12 | 0.4690 | −0.1131 | 0.5568 | 0.067* | |
C13 | 0.41064 (15) | −0.0507 (3) | 0.65878 (19) | 0.0475 (6) | |
C14 | 0.33263 (14) | 0.0262 (3) | 0.66492 (18) | 0.0422 (6) | |
C15 | 0.32900 (18) | 0.0419 (4) | 0.7644 (2) | 0.0587 (7) | |
H15 | 0.2797 | 0.0953 | 0.7715 | 0.070* | |
C16 | 0.3967 (2) | −0.0201 (5) | 0.8507 (2) | 0.0741 (9) | |
H16 | 0.3927 | −0.0077 | 0.9155 | 0.089* | |
C17 | 0.47164 (19) | −0.1017 (4) | 0.8435 (2) | 0.0724 (8) | |
H17 | 0.5164 | −0.1468 | 0.9026 | 0.087* | |
C18 | 0.47854 (16) | −0.1145 (4) | 0.7497 (2) | 0.0603 (7) | |
H18 | 0.5290 | −0.1665 | 0.7450 | 0.072* |
U11 | U22 | U33 | U12 | U13 | U23 | |
N1 | 0.0417 (11) | 0.0484 (12) | 0.0551 (12) | 0.0012 (9) | 0.0258 (10) | −0.0028 (10) |
N2 | 0.0418 (12) | 0.0468 (12) | 0.0622 (14) | 0.0010 (9) | 0.0266 (10) | −0.0019 (10) |
O1 | 0.0670 (12) | 0.0933 (15) | 0.0546 (11) | 0.0107 (10) | 0.0355 (10) | 0.0084 (10) |
O2 | 0.0629 (12) | 0.0993 (16) | 0.0516 (11) | 0.0146 (11) | 0.0218 (9) | 0.0020 (11) |
O3 | 0.0876 (15) | 0.1016 (16) | 0.0615 (12) | 0.0114 (12) | 0.0435 (11) | −0.0008 (12) |
C1 | 0.0469 (14) | 0.0405 (13) | 0.0506 (15) | −0.0026 (11) | 0.0261 (12) | 0.0028 (11) |
C2 | 0.0388 (13) | 0.0358 (12) | 0.0495 (14) | −0.0043 (10) | 0.0189 (11) | −0.0012 (10) |
C3 | 0.0439 (14) | 0.0600 (16) | 0.0530 (15) | 0.0013 (12) | 0.0215 (12) | 0.0023 (13) |
C4 | 0.0588 (17) | 0.0674 (18) | 0.0662 (17) | 0.0024 (14) | 0.0371 (14) | −0.0011 (15) |
C5 | 0.0441 (15) | 0.0564 (17) | 0.083 (2) | 0.0031 (12) | 0.0301 (15) | −0.0041 (15) |
C6 | 0.0449 (15) | 0.0650 (18) | 0.0677 (19) | 0.0042 (13) | 0.0131 (13) | 0.0003 (15) |
C7 | 0.0535 (15) | 0.0539 (16) | 0.0523 (15) | −0.0019 (12) | 0.0203 (12) | −0.0010 (12) |
C8 | 0.0460 (14) | 0.0426 (14) | 0.0575 (15) | −0.0036 (11) | 0.0266 (12) | −0.0042 (12) |
C9 | 0.0388 (13) | 0.0376 (13) | 0.0516 (14) | −0.0026 (10) | 0.0219 (11) | −0.0042 (11) |
C10 | 0.0451 (14) | 0.0538 (15) | 0.0523 (16) | −0.0010 (11) | 0.0209 (12) | −0.0023 (12) |
C11 | 0.0546 (16) | 0.0729 (18) | 0.0605 (17) | 0.0019 (14) | 0.0334 (14) | −0.0056 (14) |
C12 | 0.0446 (15) | 0.0598 (17) | 0.0730 (19) | 0.0016 (12) | 0.0329 (14) | −0.0046 (14) |
C13 | 0.0403 (13) | 0.0417 (13) | 0.0618 (16) | −0.0052 (11) | 0.0206 (12) | −0.0011 (12) |
C14 | 0.0409 (13) | 0.0392 (13) | 0.0513 (15) | −0.0075 (10) | 0.0227 (11) | −0.0040 (11) |
C15 | 0.0541 (16) | 0.0702 (19) | 0.0572 (17) | −0.0040 (13) | 0.0271 (14) | −0.0011 (14) |
C16 | 0.074 (2) | 0.097 (2) | 0.0544 (18) | −0.0059 (18) | 0.0268 (16) | 0.0034 (16) |
C17 | 0.0600 (19) | 0.081 (2) | 0.0658 (19) | −0.0025 (16) | 0.0115 (15) | 0.0121 (17) |
C18 | 0.0438 (15) | 0.0566 (17) | 0.0778 (19) | −0.0005 (13) | 0.0197 (14) | 0.0037 (15) |
N1—C1 | 1.341 (3) | C7—H7 | 0.9300 |
N1—N2 | 1.381 (2) | C8—C9 | 1.448 (3) |
N1—H1 | 0.8600 | C8—H8 | 0.9300 |
N2—C8 | 1.282 (3) | C9—C10 | 1.385 (3) |
O1—C1 | 1.229 (3) | C9—C14 | 1.437 (3) |
O2—C10 | 1.347 (3) | C10—C11 | 1.410 (3) |
O2—H2 | 0.8200 | C11—C12 | 1.349 (3) |
O3—H3C | 0.8500 | C11—H11 | 0.9301 |
O3—H3D | 0.8501 | C12—C13 | 1.409 (3) |
C1—C2 | 1.488 (3) | C12—H12 | 0.9300 |
C2—C3 | 1.383 (3) | C13—C18 | 1.410 (3) |
C2—C7 | 1.385 (3) | C13—C14 | 1.421 (3) |
C3—C4 | 1.379 (3) | C14—C15 | 1.408 (3) |
C3—H3 | 0.9300 | C15—C16 | 1.367 (4) |
C4—C5 | 1.365 (4) | C15—H15 | 0.9300 |
C4—H4 | 0.9300 | C16—C17 | 1.395 (4) |
C5—C6 | 1.361 (4) | C16—H16 | 0.9300 |
C5—H5 | 0.9301 | C17—C18 | 1.352 (4) |
C6—C7 | 1.380 (3) | C17—H17 | 0.9300 |
C6—H6 | 0.9301 | C18—H18 | 0.9300 |
C1—N1—N2 | 118.7 (2) | C10—C9—C14 | 118.7 (2) |
C1—N1—H1 | 120.6 | C10—C9—C8 | 121.3 (2) |
N2—N1—H1 | 120.6 | C14—C9—C8 | 120.0 (2) |
C8—N2—N1 | 116.2 (2) | O2—C10—C9 | 123.3 (2) |
C10—O2—H2 | 109.5 | O2—C10—C11 | 115.3 (2) |
H3C—O3—H3D | 108.4 | C9—C10—C11 | 121.4 (2) |
O1—C1—N1 | 121.6 (2) | C12—C11—C10 | 119.9 (2) |
O1—C1—C2 | 120.9 (2) | C12—C11—H11 | 120.1 |
N1—C1—C2 | 117.5 (2) | C10—C11—H11 | 120.1 |
C3—C2—C7 | 118.7 (2) | C11—C12—C13 | 121.9 (2) |
C3—C2—C1 | 124.6 (2) | C11—C12—H12 | 119.1 |
C7—C2—C1 | 116.6 (2) | C13—C12—H12 | 119.1 |
C4—C3—C2 | 120.2 (2) | C12—C13—C18 | 121.3 (2) |
C4—C3—H3 | 119.9 | C12—C13—C14 | 118.9 (2) |
C2—C3—H3 | 119.9 | C18—C13—C14 | 119.8 (2) |
C5—C4—C3 | 120.4 (3) | C15—C14—C13 | 117.2 (2) |
C5—C4—H4 | 119.8 | C15—C14—C9 | 123.6 (2) |
C3—C4—H4 | 119.8 | C13—C14—C9 | 119.2 (2) |
C6—C5—C4 | 120.1 (3) | C16—C15—C14 | 121.1 (3) |
C6—C5—H5 | 119.9 | C16—C15—H15 | 119.5 |
C4—C5—H5 | 119.9 | C14—C15—H15 | 119.5 |
C5—C6—C7 | 120.3 (2) | C15—C16—C17 | 121.3 (3) |
C5—C6—H6 | 119.8 | C15—C16—H16 | 119.4 |
C7—C6—H6 | 119.8 | C17—C16—H16 | 119.4 |
C6—C7—C2 | 120.2 (2) | C18—C17—C16 | 119.3 (3) |
C6—C7—H7 | 119.9 | C18—C17—H17 | 120.3 |
C2—C7—H7 | 119.9 | C16—C17—H17 | 120.3 |
N2—C8—C9 | 121.1 (2) | C17—C18—C13 | 121.2 (3) |
N2—C8—H8 | 119.4 | C17—C18—H18 | 119.4 |
C9—C8—H8 | 119.4 | C13—C18—H18 | 119.4 |
D—H···A | D—H | H···A | D···A | D—H···A |
N1—H1···O3 | 0.86 | 2.11 | 2.899 (3) | 152 |
O2—H2···N2 | 0.82 | 1.89 | 2.604 (3) | 145 |
O3—H3C···O1i | 0.85 | 2.03 | 2.882 (3) | 179 |
O3—H3D···O1ii | 0.85 | 1.88 | 2.734 (3) | 179 |
Symmetry codes: (i) −x, −y, −z+1; (ii) x, −y+1/2, z+1/2. |
Experimental details
Crystal data | |
Chemical formula | C18H14N2O2·H2O |
Mr | 308.33 |
Crystal system, space group | Monoclinic, P21/c |
Temperature (K) | 298 |
a, b, c (Å) | 16.346 (6), 7.192 (3), 13.880 (5) |
β (°) | 111.949 (4) |
V (Å3) | 1513.5 (10) |
Z | 4 |
Radiation type | Mo Kα |
µ (mm−1) | 0.09 |
Crystal size (mm) | 0.50 × 0.48 × 0.43 |
Data collection | |
Diffractometer | Bruker SMART APEX CCD area-detector diffractometer |
Absorption correction | Multi-scan (SADABS; Sheldrick, 1996) |
Tmin, Tmax | 0.955, 0.961 |
No. of measured, independent and observed [I > 2σ(I)] reflections | 7296, 2669, 1648 |
Rint | 0.027 |
(sin θ/λ)max (Å−1) | 0.595 |
Refinement | |
R[F2 > 2σ(F2)], wR(F2), S | 0.046, 0.148, 1.07 |
No. of reflections | 2669 |
No. of parameters | 208 |
H-atom treatment | H-atom parameters constrained |
Δρmax, Δρmin (e Å−3) | 0.25, −0.21 |
Computer programs: SMART (Siemens, 1996), SAINT (Siemens, 1996), SHELXS97 (Sheldrick, 2008), SHELXL97 (Sheldrick, 2008), SHELXTL (Sheldrick, 2008).
D—H···A | D—H | H···A | D···A | D—H···A |
N1—H1···O3 | 0.86 | 2.11 | 2.899 (3) | 151.9 |
O2—H2···N2 | 0.82 | 1.89 | 2.604 (3) | 145.3 |
O3—H3C···O1i | 0.85 | 2.03 | 2.882 (3) | 179.1 |
O3—H3D···O1ii | 0.85 | 1.88 | 2.734 (3) | 179.2 |
Symmetry codes: (i) −x, −y, −z+1; (ii) x, −y+1/2, z+1/2. |
Acknowledgements
This project was supported by the Foundation of Dongchang College, Liaocheng University (grant No. LG0801).
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.
Schiff bases are popular ligands in coordination chemistry due to their ease of synthesis and their ability to be readily modified both electronically and sterically. (Chakraborty et al., 1996; Jeewoth et al., 1999). Meanwhile, aromatic aldehyde Schiff bases have also attracted much attention due to their diverse biological activities, such as antimicrobial antibacterial, antiviral, anticancer activities etc (Das et al., 1999).
In (I) (Fig. 1), the bond lengths and angles are normal and comparable to those observed in reported the compound (Nie et al., 2008; Fun et al., 2008).
In the crystal structure, the C=N bond length in the molecule is 1.282 (3) °, showing the double-bond character. Meanwhile, the dihedral angle between the benzene ring (C3—C8) and the naphthalene plane in the Schiff base molecule is 5.18 (10) °, indicating that the two planes are almost coplanar.
Moreover, there exist one H2O molecule in the crystal unit, the crystal structure of the title compound consists of one two-dimension supramolecular structure was built from the connections of N—H···O, O—H..O hydrogen bonds and (Table 1.) two π···π stacking interactions between the rings (C2-C7) and (C9-C14) and their symmetry related counterparts (Symmetry code=-x+1, -y, -z+1 and centroid-to centroid distance = 3.676 (11) Å).