supporting information


Acta Cryst. (2010). E66, o542    [ doi:10.1107/S1600536810003831 ]

N'-(2-Methoxy­benzyl­idene)nicotinohydrazide

P. Wang, C. Li and Y.-Q. Su

Abstract top

The title compound, C14H13N3O2, was prepared by the reaction of 2-methoxy­benzyaldehyde with nicotinic acid hydrazide in methanol. The dihedral angle between the benzene and pyridine rings is 5.9 (3)°. In the crystal structure, mol­ecules are linked by inter­molecular N-H...O hydrogen bonds, leading to the formation of chains along the c axis; adjacent chains are linked via C-H...O and C-H...N hydrogen bonds.

Comment top

Schiff bases have been received much attention in recent years (Ogawa et al., 1998; Archibald et al., 1994; Harada et al., 1999). As a further investigation of the structures of Schiff base compounds, the title new compound is reported here.

In the title compound, the dihedral angle between the benzene ring and the pyridine ring is 5.9 (3)°. All the bond lengths are comparable with the similar Schiff bases reported previously (Wen et al., 2009; Mohd Lair et al., 2009; Sun et al., 2009).

In the crystal structure, molecules form chains running along the c axis through intermolecular N—H···O hydrogen bonds (Table 1 and Fig. 2).

Related literature top

For general background to Schiff base compounds, see: Archibald et al. (1994); Harada et al. (1999); Ogawa et al. (1998). For related structures, see: Mohd Lair et al. (2009); Sun et al. (2009); Wen et al. (2009).

Experimental top

2-Methoxybenzaldehyde (1.0 mmol, 136 mg) and nicotinic acid hydrazide (1.0 mmol, 137 mg) were dissolved in methanol (30 ml). The mixture was stirred at room temperature for 1 h to give a colourless solution. After keeping the solution in air for 3 d, colourless block shaped crystals were formed.

Refinement top

Atom H2 was located in a difference Fourier map and refined isotropically, with the N–H distance restrained to 0.90 (1) Å. The other H atoms were placed in idealized positions and constrained to ride on their parent atoms, with C—H distances in the range 0.93-0.96 Å, and with Uiso(H) = 1.2 or 1.5Ueq(C). In the absence of significant anomalous dispersion effects, Friedel pairs were merged before the final refinement.

Computing details top

Data collection: APEX2 (Bruker, 2004); cell refinement: SAINT (Bruker, 2004); data reduction: SAINT (Bruker, 2004); 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).

Figures top
[Figure 1] Fig. 1. The molecular structure of the title compound, showing the atom-numbering scheme. Displacement ellipsoids are drawn at the 30% probability level.
[Figure 2] Fig. 2. The crystal packing of the title compound. Intermolecular hydrogen bonds are shown as dashed lines.
N'-(2-Methoxybenzylidene)nicotinohydrazide top
Crystal data top
C14H13N3O2Dx = 1.250 Mg m3
Mr = 255.27Mo Kα radiation, λ = 0.71073 Å
Tetragonal, P43Cell parameters from 2214 reflections
Hall symbol: P 4cwθ = 2.5–25.3°
a = 9.3264 (13) ŵ = 0.09 mm1
c = 15.594 (3) ÅT = 298 K
V = 1356.4 (4) Å3Block, colourless
Z = 40.20 × 0.20 × 0.18 mm
F(000) = 536
Data collection top
Bruker APEXII CCD area-detector
diffractometer
1519 independent reflections
Radiation source: fine-focus sealed tube1313 reflections with I > 2σ(I)
Graphite monochromatorRint = 0.028
ω scansθmax = 27.0°, θmin = 2.2°
Absorption correction: multi-scan
(SADABS; Sheldrick, 2004)
h = 1110
Tmin = 0.983, Tmax = 0.985k = 411
6623 measured reflectionsl = 1919
Refinement top
Refinement on F2Primary atom site location: structure-invariant direct methods
Least-squares matrix: fullSecondary atom site location: difference Fourier map
R[F2 > 2σ(F2)] = 0.035Hydrogen site location: inferred from neighbouring sites
wR(F2) = 0.084H atoms treated by a mixture of independent and constrained refinement
S = 1.06 w = 1/[σ2(Fo2) + (0.0427P)2 + 0.084P]
where P = (Fo2 + 2Fc2)/3
1519 reflections(Δ/σ)max = 0.001
176 parametersΔρmax = 0.09 e Å3
2 restraintsΔρmin = 0.14 e Å3
Crystal data top
C14H13N3O2Z = 4
Mr = 255.27Mo Kα radiation
Tetragonal, P43µ = 0.09 mm1
a = 9.3264 (13) ÅT = 298 K
c = 15.594 (3) Å0.20 × 0.20 × 0.18 mm
V = 1356.4 (4) Å3
Data collection top
Bruker APEXII CCD area-detector
diffractometer
1519 independent reflections
Absorption correction: multi-scan
(SADABS; Sheldrick, 2004)
1313 reflections with I > 2σ(I)
Tmin = 0.983, Tmax = 0.985Rint = 0.028
6623 measured reflections
Refinement top
R[F2 > 2σ(F2)] = 0.0352 restraints
wR(F2) = 0.084H atoms treated by a mixture of independent and constrained refinement
S = 1.06Δρmax = 0.09 e Å3
1519 reflectionsΔρmin = 0.14 e Å3
176 parameters
Special details top

Geometry. All esds (except the esd in the dihedral angle between two l.s. planes) are estimated using the full covariance matrix. The cell esds are taken into account individually in the estimation of esds in distances, angles and torsion angles; correlations between esds in cell parameters are only used when they are defined by crystal symmetry. An approximate (isotropic) treatment of cell esds is used for estimating esds 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.

Fractional atomic coordinates and isotropic or equivalent isotropic displacement parameters (Å2) top
xyzUiso*/Ueq
N10.54565 (17)0.50653 (18)0.21981 (11)0.0443 (4)
N20.41517 (19)0.53627 (19)0.18161 (11)0.0457 (4)
N30.0801 (2)0.6980 (3)0.03464 (14)0.0763 (7)
O10.84079 (19)0.3686 (2)0.05708 (12)0.0681 (5)
O20.33671 (17)0.66164 (18)0.29682 (10)0.0586 (4)
C10.7782 (2)0.4068 (2)0.20059 (15)0.0454 (5)
C20.8837 (2)0.3667 (2)0.14119 (15)0.0508 (5)
C31.0208 (3)0.3312 (3)0.1677 (2)0.0635 (7)
H31.09010.30460.12790.076*
C41.0535 (3)0.3360 (3)0.2543 (2)0.0662 (7)
H41.14550.31230.27240.079*
C50.9519 (3)0.3753 (3)0.31421 (19)0.0621 (6)
H50.97510.37840.37220.075*
C60.8156 (3)0.4098 (2)0.28694 (15)0.0516 (5)
H60.74690.43580.32730.062*
C70.6357 (2)0.4433 (2)0.17089 (15)0.0466 (5)
H70.60910.42020.11510.056*
C80.3205 (2)0.6206 (2)0.22245 (13)0.0420 (5)
C90.1932 (2)0.6646 (2)0.17108 (14)0.0428 (5)
C100.0723 (3)0.7159 (3)0.21159 (16)0.0623 (7)
H100.06900.72280.27100.075*
C110.0433 (3)0.7567 (4)0.1626 (2)0.0797 (9)
H110.12650.79070.18840.096*
C120.0339 (3)0.7463 (4)0.07564 (19)0.0779 (9)
H120.11250.77490.04320.093*
C130.1914 (3)0.6590 (3)0.08281 (14)0.0571 (6)
H130.27320.62590.05500.069*
C140.9423 (4)0.3294 (4)0.0070 (2)0.0921 (11)
H14A1.02340.39260.00410.138*
H14B0.89870.33660.06260.138*
H14C0.97340.23250.00260.138*
H20.394 (3)0.496 (3)0.1309 (11)0.080*
Atomic displacement parameters (Å2) top
U11U22U33U12U13U23
N10.0447 (10)0.0450 (9)0.0430 (10)0.0038 (8)0.0060 (8)0.0027 (8)
N20.0473 (10)0.0510 (10)0.0387 (10)0.0048 (8)0.0067 (8)0.0073 (8)
N30.0612 (14)0.118 (2)0.0500 (13)0.0151 (13)0.0096 (11)0.0096 (13)
O10.0652 (10)0.0875 (12)0.0516 (10)0.0048 (9)0.0080 (9)0.0131 (9)
O20.0685 (10)0.0673 (10)0.0399 (8)0.0156 (8)0.0110 (8)0.0140 (8)
C10.0491 (12)0.0404 (11)0.0468 (12)0.0005 (9)0.0015 (9)0.0005 (9)
C20.0522 (12)0.0462 (11)0.0538 (14)0.0060 (9)0.0038 (10)0.0048 (10)
C30.0490 (13)0.0615 (14)0.0799 (18)0.0002 (11)0.0098 (13)0.0091 (13)
C40.0479 (13)0.0646 (16)0.086 (2)0.0025 (11)0.0054 (14)0.0038 (14)
C50.0647 (15)0.0641 (15)0.0576 (15)0.0002 (12)0.0114 (13)0.0085 (12)
C60.0554 (13)0.0517 (12)0.0478 (13)0.0016 (10)0.0009 (10)0.0040 (10)
C70.0519 (12)0.0485 (11)0.0395 (10)0.0022 (9)0.0030 (10)0.0042 (9)
C80.0492 (11)0.0405 (10)0.0361 (11)0.0013 (8)0.0022 (9)0.0018 (8)
C90.0449 (11)0.0421 (10)0.0414 (11)0.0001 (8)0.0009 (9)0.0020 (9)
C100.0606 (16)0.0807 (17)0.0458 (14)0.0162 (12)0.0040 (12)0.0068 (13)
C110.0526 (14)0.111 (2)0.076 (2)0.0233 (14)0.0058 (14)0.0014 (19)
C120.0502 (15)0.114 (2)0.0692 (19)0.0146 (14)0.0098 (13)0.0141 (17)
C130.0467 (13)0.0809 (16)0.0439 (13)0.0107 (11)0.0008 (10)0.0058 (11)
C140.080 (2)0.127 (3)0.069 (2)0.0180 (19)0.0249 (16)0.0256 (19)
Geometric parameters (Å, º) top
N1—C71.279 (3)C5—C61.379 (3)
N1—N21.383 (2)C5—H50.93
N2—C81.343 (3)C6—H60.93
N2—H20.897 (10)C7—H70.93
N3—C121.320 (4)C8—C91.489 (3)
N3—C131.332 (3)C9—C131.378 (3)
O1—C21.371 (3)C9—C101.378 (3)
O1—C141.424 (3)C10—C111.375 (4)
O2—C81.231 (2)C10—H100.93
C1—C61.391 (3)C11—C121.362 (4)
C1—C21.402 (3)C11—H110.93
C1—C71.448 (3)C12—H120.93
C2—C31.385 (3)C13—H130.93
C3—C41.385 (4)C14—H14A0.96
C3—H30.93C14—H14B0.96
C4—C51.380 (4)C14—H14C0.96
C4—H40.93
C7—N1—N2114.42 (17)C1—C7—H7119.3
C8—N2—N1119.46 (17)O2—C8—N2123.23 (19)
C8—N2—H2120.9 (19)O2—C8—C9121.28 (18)
N1—N2—H2119.6 (19)N2—C8—C9115.49 (17)
C12—N3—C13116.6 (2)C13—C9—C10117.4 (2)
C2—O1—C14118.3 (2)C13—C9—C8122.5 (2)
C6—C1—C2118.0 (2)C10—C9—C8120.1 (2)
C6—C1—C7122.3 (2)C11—C10—C9118.9 (2)
C2—C1—C7119.7 (2)C11—C10—H10120.6
O1—C2—C3123.9 (2)C9—C10—H10120.6
O1—C2—C1115.1 (2)C12—C11—C10118.8 (3)
C3—C2—C1121.0 (2)C12—C11—H11120.6
C4—C3—C2119.1 (2)C10—C11—H11120.6
C4—C3—H3120.4N3—C12—C11124.0 (3)
C2—C3—H3120.4N3—C12—H12118.0
C5—C4—C3121.1 (2)C11—C12—H12118.0
C5—C4—H4119.4N3—C13—C9124.3 (2)
C3—C4—H4119.4N3—C13—H13117.9
C6—C5—C4119.1 (3)C9—C13—H13117.9
C6—C5—H5120.4O1—C14—H14A109.5
C4—C5—H5120.4O1—C14—H14B109.5
C5—C6—C1121.7 (2)H14A—C14—H14B109.5
C5—C6—H6119.2O1—C14—H14C109.5
C1—C6—H6119.2H14A—C14—H14C109.5
N1—C7—C1121.4 (2)H14B—C14—H14C109.5
N1—C7—H7119.3
Hydrogen-bond geometry (Å, º) top
D—H···AD—HH···AD···AD—H···A
N2—H2···O2i0.90 (1)2.05 (2)2.897 (2)157 (3)
C4—H4···O1ii0.932.583.469 (3)160
C11—H11···N3iii0.932.533.429 (4)164
C13—H13···N1i0.932.563.487 (3)176
Symmetry codes: (i) y+1, x, z1/4; (ii) y+1, x+1, z+1/4; (iii) y1, x+1, z+1/4.

Experimental details

Crystal data
Chemical formulaC14H13N3O2
Mr255.27
Crystal system, space groupTetragonal, P43
Temperature (K)298
a, c (Å)9.3264 (13), 15.594 (3)
V3)1356.4 (4)
Z4
Radiation typeMo Kα
µ (mm1)0.09
Crystal size (mm)0.20 × 0.20 × 0.18
Data collection
DiffractometerBruker APEXII CCD area-detector
diffractometer
Absorption correctionMulti-scan
(SADABS; Sheldrick, 2004)
Tmin, Tmax0.983, 0.985
No. of measured, independent and
observed [I > 2σ(I)] reflections
6623, 1519, 1313
Rint0.028
(sin θ/λ)max1)0.639
Refinement
R[F2 > 2σ(F2)], wR(F2), S 0.035, 0.084, 1.06
No. of reflections1519
No. of parameters176
No. of restraints2
H-atom treatmentH atoms treated by a mixture of independent and constrained refinement
Δρmax, Δρmin (e Å3)0.09, 0.14

Computer programs: APEX2 (Bruker, 2004), SAINT (Bruker, 2004), SHELXS97 (Sheldrick, 2008), SHELXL97 (Sheldrick, 2008), SHELXTL (Sheldrick, 2008).

Hydrogen-bond geometry (Å, º) top
D—H···AD—HH···AD···AD—H···A
N2—H2···O2i0.90 (1)2.05 (2)2.897 (2)157 (3)
C4—H4···O1ii0.932.583.469 (3)160
C11—H11···N3iii0.932.533.429 (4)164
C13—H13···N1i0.932.563.487 (3)176
Symmetry codes: (i) y+1, x, z1/4; (ii) y+1, x+1, z+1/4; (iii) y1, x+1, z+1/4.
 
Acknowledgements top

The authors acknowledge the support by the Science and Technology Department of Yunnan Province, the Program of Yunnan Province's Young-Middle Aged Reserve Scientific and Technological Principal Culture Plan (grant No. 2006PY01–50) and the fund of Yunnan Province's Applied Research Plan (grant No. 2006E0032M).