organic compounds
1-(Hydroxyiminomethyl)-2-naphthol
aSchool of Chemistry and Chemical Engineering, Liaocheng University, Liaocheng 252059, People's Republic of China
*Correspondence e-mail: lilianzhi1963@yahoo.com.cn
The title compound, C11H9NO2, was prepared by a condensation reaction of 2-hydroxy-1-naphthaldehyde with hydroxylammonium chloride in refluxing ethanol. An intramolecular O—H⋯N hydrogen bond is observed. In the intermolecular O—H⋯O and C—H⋯O hydrogen-bond interactions result in a two-dimensional network.
Experimental
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/S160053680800370X/fj2080sup1.cif
contains datablocks I, global. DOI:Structure factors: contains datablock I. DOI: 10.1107/S160053680800370X/fj2080Isup2.hkl
2-hydroxy-1-naphthaldehyde (1 mmol, 172.18 mg) in absolute ethanol (5 ml) was added dropwise to a absolute ethanol solution (10 ml) of hydroxylammonium chioride (1 mmol, 69.49 mg). The mixture was heated under reflux with stirring for 2 h and then filtered. The resulting solution was held at room temperature for 14 days, whereupon the colourless needle crystals of the title complex suitable for X-ray
were obtained.All H-atoms were positioned geometrically and refined using a riding model, with C—H = 0.93 Å (aromatic), 0.82 Å (hydroxyl) and Uiso(H) =1.2Ueq(C).
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).C11H9NO2 | F(000) = 392 |
Mr = 187.19 | Dx = 1.382 Mg m−3 |
Monoclinic, P21/c | Mo Kα radiation, λ = 0.71073 Å |
Hall symbol: -P 2ybc | Cell parameters from 1237 reflections |
a = 14.8382 (19) Å | θ = 2.5–27.0° |
b = 4.0462 (7) Å | µ = 0.10 mm−1 |
c = 16.527 (2) Å | T = 298 K |
β = 114.933 (2)° | Block, yellow |
V = 899.8 (2) Å3 | 0.56 × 0.45 × 0.18 mm |
Z = 4 |
Bruker SMART 1K CCD diffractometer | 1573 independent reflections |
Radiation source: fine-focus sealed tube | 1009 reflections with I > 2σ(I) |
Graphite monochromator | Rint = 0.053 |
ϕ and ω scans | θmax = 25.0°, θmin = 2.5° |
Absorption correction: multi-scan (SADABS; Sheldrick, 1996) | h = −17→15 |
Tmin = 0.953, Tmax = 0.984 | k = −4→4 |
3977 measured reflections | l = −19→19 |
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)] = 0.049 | Hydrogen site location: inferred from neighbouring sites |
wR(F2) = 0.149 | H-atom parameters constrained |
S = 1.04 | w = 1/[σ2(Fo2) + (0.0623P)2 + 0.1603P] where P = (Fo2 + 2Fc2)/3 |
1573 reflections | (Δ/σ)max < 0.001 |
127 parameters | Δρmax = 0.19 e Å−3 |
0 restraints | Δρmin = −0.20 e Å−3 |
C11H9NO2 | V = 899.8 (2) Å3 |
Mr = 187.19 | Z = 4 |
Monoclinic, P21/c | Mo Kα radiation |
a = 14.8382 (19) Å | µ = 0.10 mm−1 |
b = 4.0462 (7) Å | T = 298 K |
c = 16.527 (2) Å | 0.56 × 0.45 × 0.18 mm |
β = 114.933 (2)° |
Bruker SMART 1K CCD diffractometer | 1573 independent reflections |
Absorption correction: multi-scan (SADABS; Sheldrick, 1996) | 1009 reflections with I > 2σ(I) |
Tmin = 0.953, Tmax = 0.984 | Rint = 0.053 |
3977 measured reflections |
R[F2 > 2σ(F2)] = 0.049 | 0 restraints |
wR(F2) = 0.149 | H-atom parameters constrained |
S = 1.04 | Δρmax = 0.19 e Å−3 |
1573 reflections | Δρmin = −0.20 e Å−3 |
127 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 | 0.02725 (13) | 0.4774 (6) | 0.36227 (12) | 0.0492 (6) | |
O1 | −0.05788 (11) | 0.5784 (5) | 0.37113 (10) | 0.0675 (6) | |
H1 | −0.0944 | 0.6796 | 0.3262 | 0.101* | |
O2 | 0.14880 (11) | 0.4181 (5) | 0.28864 (9) | 0.0576 (6) | |
H2 | 0.0978 | 0.4758 | 0.2925 | 0.086* | |
C1 | 0.08718 (16) | 0.3186 (6) | 0.42939 (14) | 0.0450 (6) | |
H1A | 0.0709 | 0.2805 | 0.4771 | 0.054* | |
C2 | 0.18092 (14) | 0.1946 (6) | 0.43332 (13) | 0.0398 (6) | |
C3 | 0.20781 (15) | 0.2491 (6) | 0.36359 (14) | 0.0447 (6) | |
C4 | 0.29816 (17) | 0.1329 (7) | 0.36695 (16) | 0.0543 (7) | |
H4 | 0.3149 | 0.1746 | 0.3197 | 0.065* | |
C5 | 0.36087 (17) | −0.0385 (7) | 0.43808 (18) | 0.0574 (7) | |
H5 | 0.4197 | −0.1189 | 0.4383 | 0.069* | |
C6 | 0.33969 (16) | −0.1004 (6) | 0.51308 (16) | 0.0498 (7) | |
C7 | 0.24800 (15) | 0.0168 (6) | 0.50985 (14) | 0.0426 (6) | |
C8 | 0.22784 (17) | −0.0505 (7) | 0.58514 (15) | 0.0525 (7) | |
H8 | 0.1680 | 0.0189 | 0.5849 | 0.063* | |
C9 | 0.29445 (19) | −0.2143 (7) | 0.65726 (17) | 0.0627 (7) | |
H9 | 0.2795 | −0.2534 | 0.7057 | 0.075* | |
C10 | 0.38420 (19) | −0.3245 (7) | 0.66013 (19) | 0.0707 (8) | |
H10 | 0.4294 | −0.4333 | 0.7104 | 0.085* | |
C11 | 0.40583 (18) | −0.2721 (7) | 0.58864 (19) | 0.0634 (8) | |
H11 | 0.4653 | −0.3514 | 0.5900 | 0.076* |
U11 | U22 | U33 | U12 | U13 | U23 | |
N1 | 0.0425 (10) | 0.0617 (16) | 0.0470 (11) | 0.0002 (10) | 0.0225 (9) | −0.0005 (10) |
O1 | 0.0471 (9) | 0.1046 (17) | 0.0565 (10) | 0.0234 (10) | 0.0274 (8) | 0.0178 (11) |
O2 | 0.0556 (10) | 0.0760 (14) | 0.0459 (9) | −0.0074 (9) | 0.0260 (8) | −0.0040 (9) |
C1 | 0.0442 (13) | 0.0525 (17) | 0.0411 (11) | −0.0030 (12) | 0.0207 (10) | −0.0005 (12) |
C2 | 0.0390 (12) | 0.0386 (15) | 0.0440 (11) | −0.0084 (11) | 0.0196 (10) | −0.0125 (11) |
C3 | 0.0429 (12) | 0.0469 (16) | 0.0451 (12) | −0.0123 (12) | 0.0195 (10) | −0.0131 (12) |
C4 | 0.0516 (14) | 0.060 (2) | 0.0611 (15) | −0.0153 (13) | 0.0333 (13) | −0.0238 (15) |
C5 | 0.0419 (13) | 0.0546 (19) | 0.0820 (17) | −0.0088 (13) | 0.0322 (13) | −0.0240 (16) |
C6 | 0.0382 (12) | 0.0392 (16) | 0.0676 (15) | −0.0088 (11) | 0.0180 (12) | −0.0152 (13) |
C7 | 0.0398 (12) | 0.0355 (15) | 0.0515 (13) | −0.0087 (10) | 0.0184 (10) | −0.0121 (12) |
C8 | 0.0519 (14) | 0.0489 (18) | 0.0569 (14) | 0.0029 (12) | 0.0232 (12) | 0.0007 (13) |
C9 | 0.0660 (17) | 0.054 (2) | 0.0632 (15) | 0.0036 (15) | 0.0220 (14) | 0.0115 (15) |
C10 | 0.0581 (17) | 0.054 (2) | 0.0781 (18) | 0.0009 (14) | 0.0070 (15) | 0.0103 (16) |
C11 | 0.0430 (14) | 0.0439 (18) | 0.0911 (19) | 0.0002 (13) | 0.0165 (14) | −0.0073 (16) |
N1—C1 | 1.266 (3) | C5—C6 | 1.423 (3) |
N1—O1 | 1.393 (2) | C5—H5 | 0.9300 |
O1—H1 | 0.8200 | C6—C11 | 1.404 (3) |
O2—C3 | 1.362 (3) | C6—C7 | 1.420 (3) |
O2—H2 | 0.8200 | C7—C8 | 1.423 (3) |
C1—C2 | 1.454 (3) | C8—C9 | 1.358 (3) |
C1—H1A | 0.9300 | C8—H8 | 0.9300 |
C2—C3 | 1.387 (3) | C9—C10 | 1.386 (3) |
C2—C7 | 1.431 (3) | C9—H9 | 0.9300 |
C3—C4 | 1.399 (3) | C10—C11 | 1.365 (4) |
C4—C5 | 1.344 (3) | C10—H10 | 0.9300 |
C4—H4 | 0.9300 | C11—H11 | 0.9300 |
C1—N1—O1 | 112.96 (16) | C11—C6—C7 | 119.9 (2) |
N1—O1—H1 | 109.5 | C11—C6—C5 | 122.2 (2) |
C3—O2—H2 | 109.5 | C7—C6—C5 | 117.9 (2) |
N1—C1—C2 | 121.31 (19) | C6—C7—C8 | 117.0 (2) |
N1—C1—H1A | 119.3 | C6—C7—C2 | 119.96 (19) |
C2—C1—H1A | 119.3 | C8—C7—C2 | 123.0 (2) |
C3—C2—C7 | 118.56 (19) | C9—C8—C7 | 121.2 (2) |
C3—C2—C1 | 120.9 (2) | C9—C8—H8 | 119.4 |
C7—C2—C1 | 120.59 (18) | C7—C8—H8 | 119.4 |
O2—C3—C2 | 122.40 (19) | C8—C9—C10 | 121.4 (2) |
O2—C3—C4 | 116.27 (19) | C8—C9—H9 | 119.3 |
C2—C3—C4 | 121.3 (2) | C10—C9—H9 | 119.3 |
C5—C4—C3 | 120.4 (2) | C11—C10—C9 | 119.6 (3) |
C5—C4—H4 | 119.8 | C11—C10—H10 | 120.2 |
C3—C4—H4 | 119.8 | C9—C10—H10 | 120.2 |
C4—C5—C6 | 121.8 (2) | C10—C11—C6 | 121.0 (2) |
C4—C5—H5 | 119.1 | C10—C11—H11 | 119.5 |
C6—C5—H5 | 119.1 | C6—C11—H11 | 119.5 |
D—H···A | D—H | H···A | D···A | D—H···A |
O2—H2···N1 | 0.82 | 1.86 | 2.577 (2) | 146 |
O1—H1···O2i | 0.82 | 1.97 | 2.771 (2) | 164 |
C1—H1A···O1ii | 0.93 | 2.66 | 3.527 (3) | 156 |
C8—H8···O1ii | 0.93 | 2.62 | 3.474 (3) | 153 |
Symmetry codes: (i) −x, y+1/2, −z+1/2; (ii) −x, −y+1, −z+1. |
Experimental details
Crystal data | |
Chemical formula | C11H9NO2 |
Mr | 187.19 |
Crystal system, space group | Monoclinic, P21/c |
Temperature (K) | 298 |
a, b, c (Å) | 14.8382 (19), 4.0462 (7), 16.527 (2) |
β (°) | 114.933 (2) |
V (Å3) | 899.8 (2) |
Z | 4 |
Radiation type | Mo Kα |
µ (mm−1) | 0.10 |
Crystal size (mm) | 0.56 × 0.45 × 0.18 |
Data collection | |
Diffractometer | Bruker SMART 1K CCD diffractometer |
Absorption correction | Multi-scan (SADABS; Sheldrick, 1996) |
Tmin, Tmax | 0.953, 0.984 |
No. of measured, independent and observed [I > 2σ(I)] reflections | 3977, 1573, 1009 |
Rint | 0.053 |
(sin θ/λ)max (Å−1) | 0.595 |
Refinement | |
R[F2 > 2σ(F2)], wR(F2), S | 0.049, 0.149, 1.04 |
No. of reflections | 1573 |
No. of parameters | 127 |
H-atom treatment | H-atom parameters constrained |
Δρmax, Δρmin (e Å−3) | 0.19, −0.20 |
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 |
O2—H2···N1 | 0.82 | 1.86 | 2.577 (2) | 146 |
O1—H1···O2i | 0.82 | 1.97 | 2.771 (2) | 164 |
C1—H1A···O1ii | 0.93 | 2.66 | 3.527 (3) | 156 |
C8—H8···O1ii | 0.93 | 2.62 | 3.474 (3) | 153 |
Symmetry codes: (i) −x, y+1/2, −z+1/2; (ii) −x, −y+1, −z+1. |
Acknowledgements
The authors thank the Natural Science Foundation of Shandong Province (No. Y2004B02) for a research grant.
References
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Schiff bases have been intensively investigated owing to their strong coordination capability and diverse biological activities, such as antibacterial, antitumor activities(Desai et al., 2001; Hodnett et al., 1970). We report here the synthesis and crystal structure of a new Schiff base compound derived from the condensation of 2-hydroxy-1-naphthaldehyde and hydroxylammonium chioride.
In the molecular structure(Scheme 1 and Fig.1), all the atoms are almost in one plane, with the C?N = 1.266 (3) Å. In the molecule, an intramolecular O2—H2···N1 hydrogen bond is observed(Table 1). The interactions of intermolecular hydrogen bond O1—H1···O2 form a one-dimensional chain-like structure(Fig. 2), which together with another two intermolecular H atoms C1—H1a···O1 and C8—H8···O1 (Table 1) result in the two-dimensional net-shaped structure.