organic compounds
3-Hydroxy-N′-isopropylidene-2-naphthohydrazide
aDepartment of Chemistry, University of Malaya, 50603 Kuala Lumpur, Malaysia
*Correspondence e-mail: seikweng@um.edu.my
The title Schiff base, C14H14N2O2, is close to being planar (r.m.s. deviation for the non-hydrogen atoms = 0.052 Å) and an intramolecular N—H⋯O hydrogen bond generates an S(6) ring. In the crystal, the moleucles are linked by O—H⋯O hydrogen bonds, giving rise to helical chains propagating along the c axis of the tetragonal unit cell.
Experimental
Crystal data
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Data collection
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Refinement
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Data collection: APEX2 (Bruker, 2008); cell SAINT (Bruker, 2008); data reduction: SAINT; program(s) used to solve structure: SHELXS97 (Sheldrick, 2008); program(s) used to refine structure: SHELXL97 (Sheldrick, 2008); molecular graphics: X-SEED (Barbour, 2001); software used to prepare material for publication: publCIF (Westrip, 2009).
Supporting information
10.1107/S1600536809050661/hb5249sup1.cif
contains datablocks global, I. DOI:Structure factors: contains datablock I. DOI: 10.1107/S1600536809050661/hb5249Isup2.hkl
The title Schiff base was obtained as a side product from the reaction between 3-hydroxy-2-naphthoic hydrazide (1 g, 5 mmol) and 4-chlorobenzaldehyde (0.7 g, 5 mmol) in acetone. Colourless irregular chunks of (I) were obtained when the solvent was allowed to evaporate slowly.
Anomalous dispersion was negligible and Friedel pairs were merged before refinement.
Carbon-bound H-atoms were placed in calculated positions (C–H 0.95–0.98 Å) and were included in the
in the riding model approximation, with U(H) set to 1.2–1.5U(C). The amino and hydroxy H-atoms were located in a difference Fourier map and were refined with distance restraints of N–H 0.88±0.01 Å and O–H 0.84±0.01 Å.Data collection: APEX2 (Bruker, 2008); cell
SAINT (Bruker, 2008); data reduction: SAINT (Bruker, 2008); program(s) used to solve structure: SHELXS97 (Sheldrick, 2008); program(s) used to refine structure: SHELXL97 (Sheldrick, 2008); molecular graphics: X-SEED (Barbour, 2001); software used to prepare material for publication: publCIF (Westrip, 2009).Fig. 1. The molecular structure of (I) at the 70% probability level; hydrogen atoms are drawn as spheres of arbitrary radius. |
C14H14N2O2 | Dx = 1.330 Mg m−3 |
Mr = 242.27 | Mo Kα radiation, λ = 0.71073 Å |
Tetragonal, P421c | Cell parameters from 2887 reflections |
Hall symbol: P -42 n | θ = 2.2–26.0° |
a = 13.7343 (3) Å | µ = 0.09 mm−1 |
c = 12.8253 (3) Å | T = 123 K |
V = 2419.25 (8) Å3 | Irregular, colourless |
Z = 8 | 0.35 × 0.15 × 0.05 mm |
F(000) = 1024 |
Bruker SMART APEX diffractometer | 1341 reflections with I > 2σ(I) |
Radiation source: fine-focus sealed tube | Rint = 0.055 |
Graphite monochromator | θmax = 27.5°, θmin = 2.1° |
ω scans | h = −17→17 |
16460 measured reflections | k = −17→17 |
1566 independent reflections | l = −16→16 |
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)] = 0.041 | H atoms treated by a mixture of independent and constrained refinement |
wR(F2) = 0.113 | w = 1/[σ2(Fo2) + (0.0711P)2 + 0.6133P] where P = (Fo2 + 2Fc2)/3 |
S = 1.01 | (Δ/σ)max = 0.001 |
1566 reflections | Δρmax = 0.27 e Å−3 |
173 parameters | Δρmin = −0.22 e Å−3 |
2 restraints | Absolute structure: Friedel pairs were merged |
Primary atom site location: structure-invariant direct methods |
C14H14N2O2 | Z = 8 |
Mr = 242.27 | Mo Kα radiation |
Tetragonal, P421c | µ = 0.09 mm−1 |
a = 13.7343 (3) Å | T = 123 K |
c = 12.8253 (3) Å | 0.35 × 0.15 × 0.05 mm |
V = 2419.25 (8) Å3 |
Bruker SMART APEX diffractometer | 1341 reflections with I > 2σ(I) |
16460 measured reflections | Rint = 0.055 |
1566 independent reflections |
R[F2 > 2σ(F2)] = 0.041 | 2 restraints |
wR(F2) = 0.113 | H atoms treated by a mixture of independent and constrained refinement |
S = 1.01 | Δρmax = 0.27 e Å−3 |
1566 reflections | Δρmin = −0.22 e Å−3 |
173 parameters | Absolute structure: Friedel pairs were merged |
x | y | z | Uiso*/Ueq | ||
O1 | 0.89011 (13) | 0.64858 (12) | 0.81784 (12) | 0.0232 (4) | |
H1O | 0.879 (3) | 0.649 (3) | 0.8825 (10) | 0.047 (10)* | |
O2 | 0.86201 (14) | 0.70322 (12) | 0.49816 (12) | 0.0268 (4) | |
N1 | 0.87509 (16) | 0.58826 (14) | 0.62381 (16) | 0.0213 (4) | |
H1N | 0.875 (2) | 0.5750 (19) | 0.6910 (9) | 0.026 (8)* | |
N2 | 0.86924 (15) | 0.51398 (15) | 0.55082 (15) | 0.0244 (5) | |
C1 | 0.88285 (16) | 0.74227 (16) | 0.78288 (18) | 0.0185 (5) | |
C2 | 0.88364 (17) | 0.81988 (17) | 0.85018 (18) | 0.0203 (5) | |
H2 | 0.8892 | 0.8081 | 0.9229 | 0.024* | |
C3 | 0.87638 (16) | 0.91683 (17) | 0.81435 (18) | 0.0197 (5) | |
C4 | 0.87394 (18) | 0.99834 (18) | 0.88226 (19) | 0.0241 (5) | |
H4 | 0.8786 | 0.9887 | 0.9554 | 0.029* | |
C5 | 0.86503 (19) | 1.09039 (18) | 0.8436 (2) | 0.0275 (6) | |
H5 | 0.8640 | 1.1441 | 0.8902 | 0.033* | |
C6 | 0.8573 (2) | 1.10692 (18) | 0.7353 (2) | 0.0297 (6) | |
H6 | 0.8505 | 1.1714 | 0.7094 | 0.036* | |
C7 | 0.85970 (19) | 1.03001 (18) | 0.6677 (2) | 0.0273 (6) | |
H7 | 0.8548 | 1.0413 | 0.5949 | 0.033* | |
C8 | 0.86940 (17) | 0.93370 (16) | 0.70538 (19) | 0.0195 (5) | |
C9 | 0.86959 (17) | 0.85281 (18) | 0.63782 (19) | 0.0215 (5) | |
H9 | 0.8657 | 0.8640 | 0.5648 | 0.026* | |
C10 | 0.87513 (17) | 0.75829 (17) | 0.67298 (18) | 0.0192 (5) | |
C11 | 0.87014 (17) | 0.68105 (17) | 0.59108 (18) | 0.0196 (5) | |
C12 | 0.87295 (18) | 0.42740 (19) | 0.5869 (2) | 0.0257 (5) | |
C13 | 0.8674 (2) | 0.3471 (2) | 0.5088 (2) | 0.0374 (7) | |
H13A | 0.8575 | 0.3747 | 0.4392 | 0.056* | |
H13B | 0.8129 | 0.3040 | 0.5261 | 0.056* | |
H13C | 0.9282 | 0.3098 | 0.5099 | 0.056* | |
C14 | 0.8808 (2) | 0.39944 (19) | 0.7001 (2) | 0.0322 (6) | |
H14A | 0.9250 | 0.4445 | 0.7357 | 0.048* | |
H14B | 0.9063 | 0.3330 | 0.7056 | 0.048* | |
H14C | 0.8163 | 0.4026 | 0.7325 | 0.048* |
U11 | U22 | U33 | U12 | U13 | U23 | |
O1 | 0.0343 (9) | 0.0223 (8) | 0.0130 (8) | 0.0004 (7) | 0.0001 (7) | 0.0022 (7) |
O2 | 0.0375 (10) | 0.0294 (9) | 0.0134 (8) | −0.0015 (8) | −0.0012 (8) | −0.0008 (7) |
N1 | 0.0261 (11) | 0.0248 (10) | 0.0130 (9) | 0.0002 (8) | −0.0002 (8) | −0.0008 (8) |
N2 | 0.0253 (10) | 0.0272 (10) | 0.0205 (10) | −0.0010 (9) | 0.0007 (9) | −0.0064 (9) |
C1 | 0.0166 (11) | 0.0208 (11) | 0.0179 (11) | −0.0003 (9) | 0.0005 (9) | 0.0015 (9) |
C2 | 0.0195 (12) | 0.0284 (12) | 0.0130 (10) | −0.0013 (10) | −0.0018 (9) | −0.0009 (9) |
C3 | 0.0139 (10) | 0.0254 (11) | 0.0198 (11) | −0.0003 (9) | −0.0002 (9) | 0.0000 (10) |
C4 | 0.0235 (12) | 0.0253 (12) | 0.0235 (12) | 0.0007 (10) | −0.0026 (10) | −0.0041 (10) |
C5 | 0.0265 (13) | 0.0223 (12) | 0.0337 (14) | 0.0017 (11) | −0.0006 (12) | −0.0053 (11) |
C6 | 0.0296 (13) | 0.0227 (12) | 0.0368 (14) | 0.0015 (10) | 0.0010 (12) | 0.0052 (11) |
C7 | 0.0313 (14) | 0.0279 (13) | 0.0226 (12) | 0.0020 (11) | −0.0009 (11) | 0.0070 (10) |
C8 | 0.0147 (10) | 0.0228 (11) | 0.0211 (11) | −0.0004 (9) | −0.0016 (9) | 0.0014 (9) |
C9 | 0.0201 (11) | 0.0288 (12) | 0.0155 (10) | −0.0003 (10) | −0.0003 (9) | 0.0027 (10) |
C10 | 0.0167 (11) | 0.0242 (11) | 0.0168 (11) | −0.0018 (9) | −0.0005 (9) | −0.0014 (9) |
C11 | 0.0160 (10) | 0.0262 (12) | 0.0167 (11) | −0.0017 (9) | 0.0004 (9) | −0.0025 (9) |
C12 | 0.0198 (11) | 0.0274 (12) | 0.0298 (13) | −0.0026 (10) | −0.0002 (11) | −0.0052 (10) |
C13 | 0.0339 (14) | 0.0336 (14) | 0.0446 (16) | 0.0000 (12) | 0.0029 (14) | −0.0146 (13) |
C14 | 0.0337 (14) | 0.0281 (13) | 0.0348 (15) | −0.0026 (11) | −0.0025 (12) | 0.0035 (12) |
O1—C1 | 1.366 (3) | C6—C7 | 1.367 (4) |
O1—H1O | 0.843 (10) | C6—H6 | 0.9500 |
O2—C11 | 1.235 (3) | C7—C8 | 1.414 (3) |
N1—C11 | 1.344 (3) | C7—H7 | 0.9500 |
N1—N2 | 1.387 (3) | C8—C9 | 1.409 (3) |
N1—H1N | 0.880 (10) | C9—C10 | 1.376 (3) |
N2—C12 | 1.277 (3) | C9—H9 | 0.9500 |
C1—C2 | 1.372 (3) | C10—C11 | 1.494 (3) |
C1—C10 | 1.430 (3) | C12—C13 | 1.492 (4) |
C2—C3 | 1.412 (3) | C12—C14 | 1.505 (4) |
C2—H2 | 0.9500 | C13—H13A | 0.9800 |
C3—C8 | 1.420 (3) | C13—H13B | 0.9800 |
C3—C4 | 1.419 (3) | C13—H13C | 0.9800 |
C4—C5 | 1.364 (4) | C14—H14A | 0.9800 |
C4—H4 | 0.9500 | C14—H14B | 0.9800 |
C5—C6 | 1.411 (4) | C14—H14C | 0.9800 |
C5—H5 | 0.9500 | ||
C1—O1—H1O | 108 (2) | C9—C8—C3 | 118.5 (2) |
C11—N1—N2 | 118.94 (19) | C7—C8—C3 | 119.7 (2) |
C11—N1—H1N | 120.1 (18) | C10—C9—C8 | 122.8 (2) |
N2—N1—H1N | 120.6 (18) | C10—C9—H9 | 118.6 |
C12—N2—N1 | 116.0 (2) | C8—C9—H9 | 118.6 |
O1—C1—C2 | 121.7 (2) | C9—C10—C1 | 118.2 (2) |
O1—C1—C10 | 118.27 (19) | C9—C10—C11 | 115.9 (2) |
C2—C1—C10 | 120.1 (2) | C1—C10—C11 | 125.9 (2) |
C1—C2—C3 | 121.8 (2) | O2—C11—N1 | 122.7 (2) |
C1—C2—H2 | 119.1 | O2—C11—C10 | 120.5 (2) |
C3—C2—H2 | 119.1 | N1—C11—C10 | 116.8 (2) |
C2—C3—C8 | 118.6 (2) | N2—C12—C13 | 116.3 (2) |
C2—C3—C4 | 123.1 (2) | N2—C12—C14 | 126.2 (2) |
C8—C3—C4 | 118.3 (2) | C13—C12—C14 | 117.5 (2) |
C5—C4—C3 | 120.7 (2) | C12—C13—H13A | 109.5 |
C5—C4—H4 | 119.7 | C12—C13—H13B | 109.5 |
C3—C4—H4 | 119.7 | H13A—C13—H13B | 109.5 |
C4—C5—C6 | 120.9 (2) | C12—C13—H13C | 109.5 |
C4—C5—H5 | 119.5 | H13A—C13—H13C | 109.5 |
C6—C5—H5 | 119.5 | H13B—C13—H13C | 109.5 |
C7—C6—C5 | 119.9 (2) | C12—C14—H14A | 109.5 |
C7—C6—H6 | 120.1 | C12—C14—H14B | 109.5 |
C5—C6—H6 | 120.1 | H14A—C14—H14B | 109.5 |
C6—C7—C8 | 120.6 (2) | C12—C14—H14C | 109.5 |
C6—C7—H7 | 119.7 | H14A—C14—H14C | 109.5 |
C8—C7—H7 | 119.7 | H14B—C14—H14C | 109.5 |
C9—C8—C7 | 121.9 (2) | ||
C11—N1—N2—C12 | −179.0 (2) | C7—C8—C9—C10 | −177.4 (2) |
O1—C1—C2—C3 | 179.9 (2) | C3—C8—C9—C10 | 0.8 (4) |
C10—C1—C2—C3 | 0.4 (4) | C8—C9—C10—C1 | −1.2 (4) |
C1—C2—C3—C8 | −0.9 (4) | C8—C9—C10—C11 | 177.5 (2) |
C1—C2—C3—C4 | 178.0 (2) | O1—C1—C10—C9 | −178.9 (2) |
C2—C3—C4—C5 | −178.8 (2) | C2—C1—C10—C9 | 0.6 (4) |
C8—C3—C4—C5 | 0.1 (4) | O1—C1—C10—C11 | 2.6 (4) |
C3—C4—C5—C6 | 0.5 (4) | C2—C1—C10—C11 | −177.9 (2) |
C4—C5—C6—C7 | −0.6 (4) | N2—N1—C11—O2 | −1.1 (4) |
C5—C6—C7—C8 | 0.3 (4) | N2—N1—C11—C10 | 179.0 (2) |
C6—C7—C8—C9 | 178.4 (2) | C9—C10—C11—O2 | 0.3 (3) |
C6—C7—C8—C3 | 0.2 (4) | C1—C10—C11—O2 | 178.9 (2) |
C2—C3—C8—C9 | 0.3 (4) | C9—C10—C11—N1 | −179.8 (2) |
C4—C3—C8—C9 | −178.6 (2) | C1—C10—C11—N1 | −1.2 (4) |
C2—C3—C8—C7 | 178.5 (2) | N1—N2—C12—C13 | −179.6 (2) |
C4—C3—C8—C7 | −0.4 (4) | N1—N2—C12—C14 | 1.4 (4) |
D—H···A | D—H | H···A | D···A | D—H···A |
O1—H1o···O2i | 0.84 (1) | 1.87 (2) | 2.648 (2) | 153 (3) |
N1—H1n···O1 | 0.88 (1) | 1.93 (2) | 2.631 (2) | 136 (2) |
Symmetry code: (i) −y+3/2, −x+3/2, z+1/2. |
Experimental details
Crystal data | |
Chemical formula | C14H14N2O2 |
Mr | 242.27 |
Crystal system, space group | Tetragonal, P421c |
Temperature (K) | 123 |
a, c (Å) | 13.7343 (3), 12.8253 (3) |
V (Å3) | 2419.25 (8) |
Z | 8 |
Radiation type | Mo Kα |
µ (mm−1) | 0.09 |
Crystal size (mm) | 0.35 × 0.15 × 0.05 |
Data collection | |
Diffractometer | Bruker SMART APEX diffractometer |
Absorption correction | – |
No. of measured, independent and observed [I > 2σ(I)] reflections | 16460, 1566, 1341 |
Rint | 0.055 |
(sin θ/λ)max (Å−1) | 0.650 |
Refinement | |
R[F2 > 2σ(F2)], wR(F2), S | 0.041, 0.113, 1.01 |
No. of reflections | 1566 |
No. of parameters | 173 |
No. of restraints | 2 |
H-atom treatment | H atoms treated by a mixture of independent and constrained refinement |
Δρmax, Δρmin (e Å−3) | 0.27, −0.22 |
Absolute structure | Friedel pairs were merged |
Computer programs: APEX2 (Bruker, 2008), SAINT (Bruker, 2008), SHELXS97 (Sheldrick, 2008), SHELXL97 (Sheldrick, 2008), X-SEED (Barbour, 2001), publCIF (Westrip, 2009).
D—H···A | D—H | H···A | D···A | D—H···A |
O1—H1o···O2i | 0.84 (1) | 1.870 (19) | 2.648 (2) | 153 (3) |
N1—H1n···O1 | 0.88 (1) | 1.93 (2) | 2.631 (2) | 136 (2) |
Symmetry code: (i) −y+3/2, −x+3/2, z+1/2. |
Acknowledgements
We thank the University of Malaya (grant No. RG020/09AFR) for supporting this study.
References
Barbour, L. J. (2001). J. Supramol. Chem. 1, 189–191. CrossRef CAS Google Scholar
Bruker (2008). APEX2 and SAINT. Bruker AXS Inc., Madison, Wisconsin, USA. Google Scholar
Kraudelt, H., Ludwig, E., Schilde, U. & Uhlemann, E. (1996). Z. Naturforsch. Teil B, 51, 563–566. CAS Google Scholar
Sheldrick, G. M. (2008). Acta Cryst. A64, 112–122. Web of Science CrossRef CAS IUCr Journals Google Scholar
Westrip, S. P. (2009). publCIF. In preparation. Google Scholar
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