organic compounds
(E)-N′-[3-(4-Chlorobenzoyloxy)benzylidene]pyridine-4-carbohydrazide acetic acid monosolvate monohydrate
aCollege of Sciences, Tianjin University of Science and Technology, Tianjin 300457, People's Republic of China
*Correspondence e-mail: zhifan@tust.edu.cn
In the Schiff base molecule of the title compound, C20H14ClN3O3·CH3COOH·H2O, the central benzene ring makes dihedral angles of 36.26 (7) and 27.59 (8)°, respectively, with the terminal chlorophenyl and pyridine rings. In the crystal, the three components are linked by O—H⋯O, N—H⋯O, O—H⋯N and C—H⋯O hydrogen bonds into a double-tape structure along the a axis.
Related literature
For general background to the use of Schiff base derivatives in the development of protein and enzyme mimics, see: Santos et al. (2001). For closely related crystal structures, see: Diao et al. (2007); Peralta et al. (2007); de Souza et al. (2007); Wardell et al. (2005). For reference bond-length data, see: Allen et al. (1987).
Experimental
Crystal data
|
Refinement
|
Data collection: SMART (Bruker, 1999); cell SAINT (Bruker, 1999); 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
An anhydrous ethanol solution (50 ml) of 3-formylphenyl 4-chlorobenzoate (2.61 g, 10 mmol) was added to an anhydrous ethanol solution (50 ml) of isonicotinohydrazide (1.37 g, 10 mmol) and the mixture stirred at 350 K for 5 h under N2, giving a white precipitate. The product was isolated, recrystallized from ethanol, and then dried in a vacuum to give pure compound (I) in 72% yield. Colorless single crystals of (I) suitable for X-ray analysis were obtained by slow evaporation of a solution of ethanol and acetic acid (80:20 v/v).
The H atoms of the water molecules were located in a difference Fourier map and refined, with distance restraints of O—H = 0.85 (1) and H···H = 1.45 (1) Å, and with Uiso(H) = 1.5Ueq(O). Other H atoms were included in calculated positions and refined using a riding model approximation. Constrained C—H and N—H bond lengths and Uiso(H) values: 0.93 Å and 1.2Ueq(C) for Csp2—H; 0.97 Å and 1.2Ueq(C) for methylene C—H; 0.82 Å and 1.5Ueq(O) for hydroxyl O—H; 0.86 Å and 1.2Ueq(N) for imino N—H.
Data collection: SMART (Bruker, 1999); cell
SAINT (Bruker, 1999); data reduction: SAINT (Bruker, 1999); 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).Fig. 1. The structure of the title compound with displacement ellipsoids for non-H atoms drawn at the 50% probability level. | |
Fig. 2. A packing diagram for the title compound with the hydrogen bonds drawn as dashed lines. H atoms not involved in the hydrogen bonds have been omitted. |
C20H14ClN3O3·C2H4O2·H2O | Z = 2 |
Mr = 457.86 | F(000) = 476 |
Triclinic, P1 | Dx = 1.347 Mg m−3 |
Hall symbol: -P 1 | Mo Kα radiation, λ = 0.71073 Å |
a = 6.6666 (15) Å | Cell parameters from 1984 reflections |
b = 7.5437 (17) Å | θ = 2.5–25.2° |
c = 24.781 (6) Å | µ = 0.21 mm−1 |
α = 81.526 (4)° | T = 294 K |
β = 82.969 (4)° | Block, colorless |
γ = 66.632 (4)° | 0.18 × 0.16 × 0.10 mm |
V = 1128.7 (5) Å3 |
Bruker SMART APEX CCD area-detector diffractometer | 3936 independent reflections |
Radiation source: fine-focus sealed tube | 2501 reflections with I > 2σ(I) |
Graphite monochromator | Rint = 0.019 |
ϕ and ω scans | θmax = 25.0°, θmin = 1.7° |
Absorption correction: multi-scan (SADABS; Sheldrick, 1996) | h = −6→7 |
Tmin = 0.928, Tmax = 0.979 | k = −8→8 |
5755 measured reflections | l = −27→29 |
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)] = 0.043 | H atoms treated by a mixture of independent and constrained refinement |
wR(F2) = 0.119 | w = 1/[σ2(Fo2) + (0.0473P)2 + 0.2041P] where P = (Fo2 + 2Fc2)/3 |
S = 1.03 | (Δ/σ)max = 0.001 |
3936 reflections | Δρmax = 0.15 e Å−3 |
298 parameters | Δρmin = −0.17 e Å−3 |
3 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: 0.0070 (17) |
C20H14ClN3O3·C2H4O2·H2O | γ = 66.632 (4)° |
Mr = 457.86 | V = 1128.7 (5) Å3 |
Triclinic, P1 | Z = 2 |
a = 6.6666 (15) Å | Mo Kα radiation |
b = 7.5437 (17) Å | µ = 0.21 mm−1 |
c = 24.781 (6) Å | T = 294 K |
α = 81.526 (4)° | 0.18 × 0.16 × 0.10 mm |
β = 82.969 (4)° |
Bruker SMART APEX CCD area-detector diffractometer | 3936 independent reflections |
Absorption correction: multi-scan (SADABS; Sheldrick, 1996) | 2501 reflections with I > 2σ(I) |
Tmin = 0.928, Tmax = 0.979 | Rint = 0.019 |
5755 measured reflections |
R[F2 > 2σ(F2)] = 0.043 | 3 restraints |
wR(F2) = 0.119 | H atoms treated by a mixture of independent and constrained refinement |
S = 1.03 | Δρmax = 0.15 e Å−3 |
3936 reflections | Δρmin = −0.17 e Å−3 |
298 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 > 2σ(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 | ||
Cl1 | 1.33537 (13) | 0.76087 (12) | 0.41389 (3) | 0.0905 (3) | |
O1 | 0.5002 (3) | 0.8179 (3) | 0.59922 (8) | 0.0951 (7) | |
O2 | 0.7889 (3) | 0.6503 (3) | 0.64925 (7) | 0.0686 (5) | |
O3 | 0.3270 (2) | 0.7186 (2) | 0.98573 (7) | 0.0608 (5) | |
N1 | 0.5560 (3) | 0.6798 (3) | 0.88899 (8) | 0.0524 (5) | |
N2 | 0.6335 (3) | 0.7116 (3) | 0.93397 (7) | 0.0534 (5) | |
H2 | 0.7581 | 0.7221 | 0.9319 | 0.064* | |
N3 | 0.7533 (4) | 0.8006 (3) | 1.12485 (8) | 0.0626 (6) | |
C1 | 0.7913 (5) | 0.7979 (5) | 0.50434 (12) | 0.0820 (9) | |
H1 | 0.6443 | 0.8341 | 0.4987 | 0.098* | |
C2 | 0.9364 (5) | 0.8039 (4) | 0.46046 (11) | 0.0809 (9) | |
H2A | 0.8882 | 0.8445 | 0.4254 | 0.097* | |
C3 | 1.1507 (4) | 0.7501 (4) | 0.46886 (10) | 0.0628 (7) | |
C4 | 1.2231 (5) | 0.6916 (5) | 0.52037 (11) | 0.0822 (9) | |
H4 | 1.3702 | 0.6559 | 0.5258 | 0.099* | |
C5 | 1.0767 (4) | 0.6859 (4) | 0.56408 (11) | 0.0742 (8) | |
H5 | 1.1258 | 0.6454 | 0.5991 | 0.089* | |
C6 | 0.8596 (4) | 0.7392 (3) | 0.55674 (10) | 0.0563 (6) | |
C7 | 0.6938 (4) | 0.7422 (4) | 0.60230 (11) | 0.0643 (7) | |
C8 | 0.6574 (4) | 0.6336 (4) | 0.69716 (10) | 0.0573 (6) | |
C9 | 0.4946 (4) | 0.5648 (4) | 0.69816 (11) | 0.0669 (7) | |
H9 | 0.4609 | 0.5348 | 0.6662 | 0.080* | |
C10 | 0.3821 (4) | 0.5412 (4) | 0.74740 (11) | 0.0659 (7) | |
H10 | 0.2705 | 0.4958 | 0.7486 | 0.079* | |
C11 | 0.4328 (4) | 0.5838 (3) | 0.79477 (10) | 0.0580 (6) | |
H11 | 0.3540 | 0.5691 | 0.8276 | 0.070* | |
C12 | 0.6014 (4) | 0.6488 (3) | 0.79379 (9) | 0.0511 (6) | |
C13 | 0.7122 (4) | 0.6747 (4) | 0.74412 (10) | 0.0573 (6) | |
H13 | 0.8239 | 0.7201 | 0.7426 | 0.069* | |
C14 | 0.6656 (4) | 0.6871 (4) | 0.84357 (10) | 0.0581 (6) | |
H14 | 0.7887 | 0.7173 | 0.8421 | 0.070* | |
C15 | 0.5077 (4) | 0.7258 (3) | 0.98161 (9) | 0.0474 (6) | |
C16 | 0.6030 (3) | 0.7529 (3) | 1.03005 (9) | 0.0450 (5) | |
C17 | 0.8176 (4) | 0.7278 (4) | 1.03257 (10) | 0.0626 (7) | |
H17 | 0.9165 | 0.6951 | 1.0022 | 0.075* | |
C18 | 0.8846 (4) | 0.7516 (4) | 1.08031 (11) | 0.0713 (8) | |
H18 | 1.0309 | 0.7321 | 1.0814 | 0.086* | |
C19 | 0.5476 (4) | 0.8251 (4) | 1.12229 (10) | 0.0636 (7) | |
H19 | 0.4521 | 0.8590 | 1.1532 | 0.076* | |
C20 | 0.4667 (4) | 0.8032 (4) | 1.07641 (10) | 0.0594 (7) | |
H20 | 0.3199 | 0.8225 | 1.0767 | 0.071* | |
O4 | 1.0439 (3) | 0.9861 (3) | 0.19590 (9) | 0.0936 (7) | |
O5 | 0.8367 (4) | 0.8213 (3) | 0.22488 (7) | 0.0878 (6) | |
H5A | 0.8297 | 0.8234 | 0.1920 | 0.132* | |
C21 | 0.9595 (5) | 0.9109 (4) | 0.23256 (11) | 0.0660 (7) | |
C22 | 0.9809 (6) | 0.9134 (5) | 0.29172 (12) | 0.1010 (11) | |
H22A | 1.1128 | 0.9314 | 0.2958 | 0.151* | |
H22B | 0.9867 | 0.7924 | 0.3116 | 0.151* | |
H22C | 0.8570 | 1.0181 | 0.3058 | 0.151* | |
O6 | 0.0290 (3) | 0.7824 (3) | 0.90528 (8) | 0.0777 (6) | |
H6A | 0.134 (4) | 0.765 (4) | 0.9249 (10) | 0.117* | |
H6B | 0.018 (5) | 0.864 (4) | 0.8768 (8) | 0.117* |
U11 | U22 | U33 | U12 | U13 | U23 | |
Cl1 | 0.0937 (6) | 0.1030 (6) | 0.0582 (5) | −0.0225 (5) | 0.0095 (4) | −0.0146 (4) |
O1 | 0.0563 (12) | 0.1292 (18) | 0.0847 (15) | −0.0278 (12) | −0.0173 (10) | 0.0215 (12) |
O2 | 0.0556 (10) | 0.0987 (13) | 0.0469 (10) | −0.0248 (10) | −0.0071 (8) | −0.0053 (9) |
O3 | 0.0446 (9) | 0.0839 (12) | 0.0618 (11) | −0.0325 (9) | −0.0085 (8) | −0.0052 (9) |
N1 | 0.0542 (12) | 0.0602 (12) | 0.0502 (12) | −0.0289 (10) | −0.0117 (10) | −0.0023 (9) |
N2 | 0.0512 (11) | 0.0751 (13) | 0.0467 (12) | −0.0376 (10) | −0.0089 (9) | −0.0021 (9) |
N3 | 0.0690 (14) | 0.0746 (14) | 0.0544 (13) | −0.0382 (12) | −0.0109 (11) | −0.0031 (10) |
C1 | 0.0660 (18) | 0.117 (3) | 0.0624 (19) | −0.0361 (17) | −0.0226 (15) | 0.0082 (16) |
C2 | 0.083 (2) | 0.104 (2) | 0.0537 (18) | −0.0337 (18) | −0.0217 (16) | 0.0064 (15) |
C3 | 0.0722 (17) | 0.0602 (15) | 0.0519 (15) | −0.0195 (14) | −0.0023 (13) | −0.0129 (12) |
C4 | 0.0588 (17) | 0.123 (3) | 0.0561 (18) | −0.0247 (17) | −0.0066 (14) | −0.0115 (16) |
C5 | 0.0655 (17) | 0.107 (2) | 0.0449 (15) | −0.0256 (16) | −0.0122 (13) | −0.0066 (14) |
C6 | 0.0581 (15) | 0.0588 (15) | 0.0527 (15) | −0.0211 (12) | −0.0122 (12) | −0.0056 (11) |
C7 | 0.0613 (17) | 0.0715 (17) | 0.0618 (17) | −0.0257 (14) | −0.0178 (14) | −0.0013 (13) |
C8 | 0.0514 (14) | 0.0650 (16) | 0.0524 (15) | −0.0184 (13) | −0.0058 (12) | −0.0071 (12) |
C9 | 0.0721 (17) | 0.0750 (18) | 0.0613 (17) | −0.0312 (15) | −0.0091 (14) | −0.0189 (13) |
C10 | 0.0687 (17) | 0.0780 (18) | 0.0680 (18) | −0.0430 (15) | −0.0068 (14) | −0.0153 (14) |
C11 | 0.0581 (15) | 0.0636 (16) | 0.0588 (16) | −0.0295 (13) | −0.0036 (12) | −0.0091 (12) |
C12 | 0.0498 (13) | 0.0557 (14) | 0.0495 (14) | −0.0215 (11) | −0.0086 (11) | −0.0039 (11) |
C13 | 0.0500 (14) | 0.0720 (17) | 0.0562 (16) | −0.0297 (13) | −0.0100 (12) | −0.0034 (12) |
C14 | 0.0566 (15) | 0.0740 (17) | 0.0550 (16) | −0.0373 (13) | −0.0093 (12) | −0.0025 (12) |
C15 | 0.0464 (13) | 0.0474 (13) | 0.0507 (14) | −0.0217 (11) | −0.0097 (11) | 0.0034 (10) |
C16 | 0.0433 (12) | 0.0474 (13) | 0.0475 (13) | −0.0231 (10) | −0.0060 (10) | 0.0033 (10) |
C17 | 0.0501 (14) | 0.0955 (19) | 0.0517 (15) | −0.0379 (14) | −0.0007 (11) | −0.0106 (13) |
C18 | 0.0582 (16) | 0.108 (2) | 0.0625 (18) | −0.0458 (16) | −0.0087 (14) | −0.0108 (16) |
C19 | 0.0685 (17) | 0.0755 (18) | 0.0487 (15) | −0.0307 (15) | 0.0001 (12) | −0.0076 (12) |
C20 | 0.0481 (14) | 0.0770 (17) | 0.0574 (16) | −0.0305 (13) | −0.0008 (12) | −0.0045 (13) |
O4 | 0.0878 (14) | 0.1262 (18) | 0.0788 (14) | −0.0620 (14) | −0.0170 (11) | 0.0218 (12) |
O5 | 0.1197 (17) | 0.1169 (16) | 0.0548 (12) | −0.0778 (15) | −0.0107 (12) | 0.0026 (12) |
C21 | 0.0703 (18) | 0.0653 (17) | 0.0599 (17) | −0.0235 (15) | −0.0166 (14) | 0.0033 (13) |
C22 | 0.146 (3) | 0.096 (2) | 0.068 (2) | −0.049 (2) | −0.040 (2) | 0.0006 (17) |
O6 | 0.0587 (11) | 0.1268 (17) | 0.0607 (12) | −0.0549 (12) | −0.0152 (9) | 0.0147 (11) |
Cl1—C3 | 1.736 (3) | C10—C11 | 1.375 (3) |
O1—C7 | 1.194 (3) | C10—H10 | 0.9300 |
O2—C7 | 1.353 (3) | C11—C12 | 1.389 (3) |
O2—C8 | 1.408 (3) | C11—H11 | 0.9300 |
O3—C15 | 1.218 (2) | C12—C13 | 1.385 (3) |
N1—C14 | 1.271 (3) | C12—C14 | 1.456 (3) |
N1—N2 | 1.373 (2) | C13—H13 | 0.9300 |
N2—C15 | 1.353 (3) | C14—H14 | 0.9300 |
N2—H2 | 0.8600 | C15—C16 | 1.499 (3) |
N3—C19 | 1.317 (3) | C16—C20 | 1.374 (3) |
N3—C18 | 1.322 (3) | C16—C17 | 1.375 (3) |
C1—C2 | 1.372 (4) | C17—C18 | 1.374 (3) |
C1—C6 | 1.380 (3) | C17—H17 | 0.9300 |
C1—H1 | 0.9300 | C18—H18 | 0.9300 |
C2—C3 | 1.356 (4) | C19—C20 | 1.373 (3) |
C2—H2A | 0.9300 | C19—H19 | 0.9300 |
C3—C4 | 1.368 (3) | C20—H20 | 0.9300 |
C4—C5 | 1.374 (4) | O4—C21 | 1.200 (3) |
C4—H4 | 0.9300 | O5—C21 | 1.295 (3) |
C5—C6 | 1.368 (3) | O5—H5A | 0.8200 |
C5—H5 | 0.9300 | C21—C22 | 1.494 (4) |
C6—C7 | 1.476 (4) | C22—H22A | 0.9600 |
C8—C9 | 1.372 (3) | C22—H22B | 0.9600 |
C8—C13 | 1.373 (3) | C22—H22C | 0.9600 |
C9—C10 | 1.379 (3) | O6—H6A | 0.854 (10) |
C9—H9 | 0.9300 | O6—H6B | 0.852 (10) |
C7—O2—C8 | 119.8 (2) | C13—C12—C11 | 118.7 (2) |
C14—N1—N2 | 116.74 (19) | C13—C12—C14 | 119.7 (2) |
C15—N2—N1 | 117.92 (19) | C11—C12—C14 | 121.6 (2) |
C15—N2—H2 | 121.0 | C8—C13—C12 | 120.2 (2) |
N1—N2—H2 | 121.0 | C8—C13—H13 | 119.9 |
C19—N3—C18 | 116.7 (2) | C12—C13—H13 | 119.9 |
C2—C1—C6 | 121.2 (3) | N1—C14—C12 | 121.0 (2) |
C2—C1—H1 | 119.4 | N1—C14—H14 | 119.5 |
C6—C1—H1 | 119.4 | C12—C14—H14 | 119.5 |
C3—C2—C1 | 119.2 (3) | O3—C15—N2 | 123.0 (2) |
C3—C2—H2A | 120.4 | O3—C15—C16 | 121.0 (2) |
C1—C2—H2A | 120.4 | N2—C15—C16 | 116.0 (2) |
C2—C3—C4 | 120.9 (3) | C20—C16—C17 | 116.8 (2) |
C2—C3—Cl1 | 119.7 (2) | C20—C16—C15 | 117.7 (2) |
C4—C3—Cl1 | 119.4 (2) | C17—C16—C15 | 125.5 (2) |
C3—C4—C5 | 119.5 (3) | C18—C17—C16 | 119.4 (2) |
C3—C4—H4 | 120.2 | C18—C17—H17 | 120.3 |
C5—C4—H4 | 120.2 | C16—C17—H17 | 120.3 |
C6—C5—C4 | 120.8 (2) | N3—C18—C17 | 123.8 (2) |
C6—C5—H5 | 119.6 | N3—C18—H18 | 118.1 |
C4—C5—H5 | 119.6 | C17—C18—H18 | 118.1 |
C5—C6—C1 | 118.4 (3) | N3—C19—C20 | 123.4 (2) |
C5—C6—C7 | 123.2 (2) | N3—C19—H19 | 118.3 |
C1—C6—C7 | 118.4 (2) | C20—C19—H19 | 118.3 |
O1—C7—O2 | 123.4 (3) | C19—C20—C16 | 119.9 (2) |
O1—C7—C6 | 125.3 (2) | C19—C20—H20 | 120.0 |
O2—C7—C6 | 111.3 (2) | C16—C20—H20 | 120.0 |
C9—C8—C13 | 121.3 (2) | C21—O5—H5A | 109.5 |
C9—C8—O2 | 122.2 (2) | O4—C21—O5 | 123.3 (3) |
C13—C8—O2 | 116.3 (2) | O4—C21—C22 | 123.9 (3) |
C8—C9—C10 | 118.7 (2) | O5—C21—C22 | 112.8 (3) |
C8—C9—H9 | 120.6 | C21—C22—H22A | 109.5 |
C10—C9—H9 | 120.6 | C21—C22—H22B | 109.5 |
C11—C10—C9 | 120.8 (2) | H22A—C22—H22B | 109.5 |
C11—C10—H10 | 119.6 | C21—C22—H22C | 109.5 |
C9—C10—H10 | 119.6 | H22A—C22—H22C | 109.5 |
C10—C11—C12 | 120.3 (2) | H22B—C22—H22C | 109.5 |
C10—C11—H11 | 119.9 | H6A—O6—H6B | 115.3 (17) |
C12—C11—H11 | 119.9 | ||
C14—N1—N2—C15 | 172.9 (2) | C10—C11—C12—C13 | 1.8 (3) |
C6—C1—C2—C3 | 0.4 (5) | C10—C11—C12—C14 | −177.3 (2) |
C1—C2—C3—C4 | −0.5 (5) | C9—C8—C13—C12 | −0.6 (4) |
C1—C2—C3—Cl1 | −178.9 (2) | O2—C8—C13—C12 | −175.4 (2) |
C2—C3—C4—C5 | 0.5 (5) | C11—C12—C13—C8 | −1.0 (3) |
Cl1—C3—C4—C5 | 178.9 (2) | C14—C12—C13—C8 | 178.0 (2) |
C3—C4—C5—C6 | −0.4 (5) | N2—N1—C14—C12 | 177.86 (19) |
C4—C5—C6—C1 | 0.3 (4) | C13—C12—C14—N1 | 174.2 (2) |
C4—C5—C6—C7 | −177.9 (3) | C11—C12—C14—N1 | −6.7 (4) |
C2—C1—C6—C5 | −0.3 (5) | N1—N2—C15—O3 | −2.7 (3) |
C2—C1—C6—C7 | 178.1 (3) | N1—N2—C15—C16 | 177.73 (18) |
C8—O2—C7—O1 | 2.7 (4) | O3—C15—C16—C20 | −11.2 (3) |
C8—O2—C7—C6 | −178.4 (2) | N2—C15—C16—C20 | 168.4 (2) |
C5—C6—C7—O1 | 166.5 (3) | O3—C15—C16—C17 | 167.4 (2) |
C1—C6—C7—O1 | −11.8 (4) | N2—C15—C16—C17 | −13.0 (3) |
C5—C6—C7—O2 | −12.4 (4) | C20—C16—C17—C18 | 0.7 (4) |
C1—C6—C7—O2 | 169.4 (2) | C15—C16—C17—C18 | −178.0 (2) |
C7—O2—C8—C9 | 50.5 (3) | C19—N3—C18—C17 | 0.7 (4) |
C7—O2—C8—C13 | −134.6 (2) | C16—C17—C18—N3 | −1.0 (4) |
C13—C8—C9—C10 | 1.4 (4) | C18—N3—C19—C20 | −0.3 (4) |
O2—C8—C9—C10 | 176.0 (2) | N3—C19—C20—C16 | 0.1 (4) |
C8—C9—C10—C11 | −0.6 (4) | C17—C16—C20—C19 | −0.3 (3) |
C9—C10—C11—C12 | −1.0 (4) | C15—C16—C20—C19 | 178.5 (2) |
D—H···A | D—H | H···A | D···A | D—H···A |
O6—H6A···O3 | 0.86 (3) | 2.00 (3) | 2.843 (2) | 166 (2) |
O6—H6B···O4i | 0.86 (2) | 1.98 (2) | 2.812 (3) | 165 (3) |
O5—H5A···N3ii | 0.82 | 1.85 | 2.646 (3) | 164 |
N2—H2···O6iii | 0.86 | 2.04 | 2.879 (2) | 164 |
C14—H14···O6iii | 0.93 | 2.59 | 3.367 (4) | 141 |
C17—H17···O6iii | 0.93 | 2.50 | 3.331 (3) | 149 |
Symmetry codes: (i) −x+1, −y+2, −z+1; (ii) x, y, z−1; (iii) x+1, y, z. |
Experimental details
Crystal data | |
Chemical formula | C20H14ClN3O3·C2H4O2·H2O |
Mr | 457.86 |
Crystal system, space group | Triclinic, P1 |
Temperature (K) | 294 |
a, b, c (Å) | 6.6666 (15), 7.5437 (17), 24.781 (6) |
α, β, γ (°) | 81.526 (4), 82.969 (4), 66.632 (4) |
V (Å3) | 1128.7 (5) |
Z | 2 |
Radiation type | Mo Kα |
µ (mm−1) | 0.21 |
Crystal size (mm) | 0.18 × 0.16 × 0.10 |
Data collection | |
Diffractometer | Bruker SMART APEX CCD area-detector diffractometer |
Absorption correction | Multi-scan (SADABS; Sheldrick, 1996) |
Tmin, Tmax | 0.928, 0.979 |
No. of measured, independent and observed [I > 2σ(I)] reflections | 5755, 3936, 2501 |
Rint | 0.019 |
(sin θ/λ)max (Å−1) | 0.595 |
Refinement | |
R[F2 > 2σ(F2)], wR(F2), S | 0.043, 0.119, 1.03 |
No. of reflections | 3936 |
No. of parameters | 298 |
No. of restraints | 3 |
H-atom treatment | H atoms treated by a mixture of independent and constrained refinement |
Δρmax, Δρmin (e Å−3) | 0.15, −0.17 |
Computer programs: SMART (Bruker, 1999), SAINT (Bruker, 1999), SHELXS97 (Sheldrick, 2008), SHELXL97 (Sheldrick, 2008), SHELXTL (Sheldrick, 2008).
D—H···A | D—H | H···A | D···A | D—H···A |
O6—H6A···O3 | 0.86 (3) | 2.00 (3) | 2.843 (2) | 166 (2) |
O6—H6B···O4i | 0.86 (2) | 1.98 (2) | 2.812 (3) | 165 (3) |
O5—H5A···N3ii | 0.82 | 1.85 | 2.646 (3) | 164 |
N2—H2···O6iii | 0.86 | 2.04 | 2.879 (2) | 164 |
C14—H14···O6iii | 0.93 | 2.59 | 3.367 (4) | 141 |
C17—H17···O6iii | 0.93 | 2.50 | 3.331 (3) | 149 |
Symmetry codes: (i) −x+1, −y+2, −z+1; (ii) x, y, z−1; (iii) x+1, y, z. |
References
Allen, F. H., Kennard, O., Watson, D. G., Brammer, L., Orpen, A. G. & Taylor, R. (1987). J. Chem. Soc. Perkin Trans. 2, pp. S1–19. CrossRef Web of Science Google Scholar
Bruker (1999). SMART and SAINT. Bruker AXS Inc., Madison, Wisconsin, USA. Google Scholar
Diao, C.-H., Fan, Z. & Chen, X. (2007). Acta Cryst. C63, o717–o719. Web of Science CSD CrossRef IUCr Journals Google Scholar
Peralta, M. A., Souza, M. N. V. de, Wardell, S. M. S. V., Wardell, J. L., Low, J. N. & Glidewell, C. (2007). Acta Cryst. C63, o68–o72. Web of Science CSD CrossRef IUCr Journals Google Scholar
Santos, M. L. P., Bagatin, I. A., Pereira, E. M. & Ferreira, A. M. D. C. (2001). J. Chem. Soc. Dalton Trans. pp. 838–844. Web of Science CrossRef Google Scholar
Sheldrick, G. M. (1996). SADABS. University of Göttingen, Germany. Google Scholar
Sheldrick, G. M. (2008). Acta Cryst. A64, 112–122. Web of Science CrossRef CAS IUCr Journals Google Scholar
Souza, M. V. N. de, Wardell, S. M. S. V., Wardell, J. L., Low, J. N. & Glidewell, C. (2007). Acta Cryst. C63, o166–o168. Web of Science CSD CrossRef IUCr Journals Google Scholar
Wardell, S. M. S. V., Souza, M. V. N. de, Wardell, J. L., Low, J. N. & Glidewell, C. (2005). Acta Cryst. C61, o683–o689. Web of Science CSD CrossRef CAS IUCr Journals Google Scholar
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.
Many Schiff base derivatives have been synthesized and found to exhibit important pharmacological properties, such as antibacterial, antitumor and antitoxic activities (Santos et al., 2001). Among the large number of the compounds, isonicotinohydrazide forms a variety of Schiff bases with aldehydes, and the synthesis and crystal structures of some of them have been reported (Wardell et al., 2005; Peralta et al., 2007; de Souza et al., 2007).
In order to obtain more detailed information on the structural conformation of the molecule that may be of value in structure-activity analysis, we report here the synthesis and structure of the title compound, (I), as part of our study of isonicotinoylhydrazones (Diao et al., 2007).
In (I) (Fig. 1), the central benzene ring (C8–C14/O2) is nearly planar, with an r.m.s. deviation for fitted atoms of 0.0255 Å. This plane makes dihedral angles of 27.59 (8) and 36.26 (7)° with the pyridine ring (C16–C20/N3) and the terminal benzene ring (C1–C6),respectively. The dihedral angle between the pyridine ring and the benzene ring is 26.03 (7)°. All bond lengths are within normal ranges (Allen et al., 1987).
The acetic acid molecule and the water molecule are effectively tethered to the Schiff base component by a combination of independent hydrogen bonds, two O—H···O, one N—H···O, one O—H···N and one C—H···O types (Fig. 2 and Table 2).