organic compounds
N′-[(E)-2-Hydroxy-3,5-diiodobenzylidene]cyclohexane-1-carbohydrazide
aDepartment of Chemistry, Velalar College of Engineering and Technology, Erode 638 009, India, bDepartment of Physics, The Madura College, Madurai 625 011, India, cDepartment of Chemistry, Government Arts College for Women (Autonomous), Madurai 625 002, India, dDepartment of Physics, CPCL Polytechnic College, Chennai 600 068, India, and eDepartment of Chemistry, Government Arts College, Melur 625 106, India
*Correspondence e-mail: chakkaravarthi_2005@yahoo.com, rajagopal18@yahoo.com
In the title compound, C14H10I2N2O2, the two aromatic rings are inclined at a dihedral angle of 16.72 (33)°. The molecular structure is stabilized by an intramolecular O—H⋯N hydrogen bond. In the crystal, intermolecular N—H⋯O interactions link the molecules into chains running along the c axis. C—H⋯O interactions also occur. The crystal used for the was a non-merohedral twin with a domain ratio of 0.972 (2):0.028 (2).
Related literature
For the biological activity of Schiff base derivatives, see: Daier et al. (2004); Golcu et al. (2005); Liu & Yang (2010); Zgierski & Grabowska (2000). For related structures, see: Manvizhi et al. (2011); Thirugnanasundar et al. (2011).
Experimental
Crystal data
|
Refinement
|
Data collection: APEX2 (Bruker, 2004); cell SAINT (Bruker, 2004); data reduction: SAINT; program(s) used to solve structure: SHELXS97 (Sheldrick, 2008); program(s) used to refine structure: SHELXL97 (Sheldrick, 2008); molecular graphics: PLATON (Spek, 2009); software used to prepare material for publication: SHELXL97.
Supporting information
https://doi.org/10.1107/S1600536811036488/bt5637sup1.cif
contains datablocks global, I. DOI:Structure factors: contains datablock I. DOI: https://doi.org/10.1107/S1600536811036488/bt5637Isup2.hkl
Supporting information file. DOI: https://doi.org/10.1107/S1600536811036488/bt5637Isup3.cml
A methanolic solution (10 ml) of benzoicacid hydrazide (5 mmol) was magnetically stirred in a round bottom flask followed by drop wise addition of methanolic solution of 3,5-diiodosalicylaldehyde (5 mmol). The reaction mixture was then refluxed for three hours and upon cooling to 278 K, a yellow crystalline solid precipitates from the mixture. The solid which is separated out was filtered washed with ice cold ethanol and dried in vaccuo over anhydrous CaCl2. Single crystals suitable for the X-ray diffraction were obtained by slow evaporation of a solution of the title compound in DMF at room temperature. Melting Point : 485 K.
All H atoms were positioned geometrically with C—H = 0.93Å, O—H = 0.82 Å and N—H = 0.86 Å and allowed to ride on their parent atoms, with Uiso(H) = 1.5 Ueq(O), 1.2 Ueq(N) and 1.2 Ueq(C). Initial checkCIF/PLATON results indicated possible
introduction of the suggested command TWIN 1 0 0.85 0 -1 0 0 0 -1 2 during gave a very modest decrease in the R-factor, from 0.0743 to 0.0584, with BASF = 0.028 (2).Schiff base ligands play an important role in the development of coordination chemistry and possess important properties such as biological activity (Golcu et al., 2005; Liu & Yang, 2010),
(Daier et al., 2004) and photochromic properties (Zgierski & Grabowska, 2000).The goemetric parameters of the title compound (Fig. 1) agree well with related structures (Manvizhi et al., 2011; Thirugnanasundar et al., 2011). The two aromatic rings are inclined at an angle of 16.72 (33)°.
The molecular structure is stabilized by an intramolecular O-H···N hydrogen bond. The
is controlled by intermolecular N-H···O and C—H···O (Fig. 2 & Table 1) interactions.For the biological activity of Schiff base derivatives, see: Daier et al. (2004); Golcu et al. (2005); Liu & Yang (2010); Zgierski & Grabowska (2000). For related structures, see: Manvizhi et al. (2011); Thirugnanasundar et al. (2011).
Data collection: APEX2 (Bruker, 2004); cell
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: PLATON (Spek, 2009); software used to prepare material for publication: SHELXL97 (Sheldrick, 2008).C14H10I2N2O2 | F(000) = 920 |
Mr = 492.04 | Dx = 2.118 Mg m−3 |
Monoclinic, P21/c | Mo Kα radiation, λ = 0.71073 Å |
Hall symbol: -P 2ybc | Cell parameters from 13146 reflections |
a = 17.7495 (13) Å | θ = 2.2–25.0° |
b = 9.4273 (6) Å | µ = 4.08 mm−1 |
c = 9.4684 (7) Å | T = 295 K |
β = 103.052 (3)° | Block, yellow |
V = 1543.42 (19) Å3 | 0.20 × 0.10 × 0.10 mm |
Z = 4 |
Bruker Kappa APEXII diffractometer | 2708 independent reflections |
Radiation source: fine-focus sealed tube | 2349 reflections with I > 2σ(I) |
Graphite monochromator | Rint = 0.029 |
ω and φ scans | θmax = 25.0°, θmin = 2.2° |
Absorption correction: multi-scan (SADABS; Sheldrick, 1996) | h = −21→21 |
Tmin = 0.496, Tmax = 0.686 | k = −11→8 |
13146 measured reflections | l = −11→11 |
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)] = 0.058 | Hydrogen site location: inferred from neighbouring sites |
wR(F2) = 0.172 | H-atom parameters constrained |
S = 1.11 | w = 1/[σ2(Fo2) + (0.0412P)2 + 42.3729P] where P = (Fo2 + 2Fc2)/3 |
2708 reflections | (Δ/σ)max < 0.001 |
182 parameters | Δρmax = 1.48 e Å−3 |
0 restraints | Δρmin = −1.52 e Å−3 |
C14H10I2N2O2 | V = 1543.42 (19) Å3 |
Mr = 492.04 | Z = 4 |
Monoclinic, P21/c | Mo Kα radiation |
a = 17.7495 (13) Å | µ = 4.08 mm−1 |
b = 9.4273 (6) Å | T = 295 K |
c = 9.4684 (7) Å | 0.20 × 0.10 × 0.10 mm |
β = 103.052 (3)° |
Bruker Kappa APEXII diffractometer | 2708 independent reflections |
Absorption correction: multi-scan (SADABS; Sheldrick, 1996) | 2349 reflections with I > 2σ(I) |
Tmin = 0.496, Tmax = 0.686 | Rint = 0.029 |
13146 measured reflections |
R[F2 > 2σ(F2)] = 0.058 | 0 restraints |
wR(F2) = 0.172 | H-atom parameters constrained |
S = 1.11 | w = 1/[σ2(Fo2) + (0.0412P)2 + 42.3729P] where P = (Fo2 + 2Fc2)/3 |
2708 reflections | Δρmax = 1.48 e Å−3 |
182 parameters | Δρmin = −1.52 e Å−3 |
x | y | z | Uiso*/Ueq | ||
I1 | 0.89740 (5) | 0.16968 (10) | 0.83785 (10) | 0.0458 (3) | |
I2 | 0.91863 (7) | −0.18253 (14) | 1.36905 (13) | 0.0777 (5) | |
O1 | 0.5247 (5) | 0.3352 (11) | 0.8089 (10) | 0.052 (3) | |
O2 | 0.7346 (5) | 0.2255 (10) | 0.9018 (10) | 0.044 (2) | |
H2A | 0.6895 | 0.2404 | 0.9145 | 0.065* | |
N1 | 0.5428 (6) | 0.2182 (13) | 1.0250 (11) | 0.043 (3) | |
H1 | 0.5244 | 0.1906 | 1.0969 | 0.052* | |
N2 | 0.6169 (6) | 0.1863 (12) | 1.0158 (11) | 0.040 (3) | |
C1 | 0.4189 (7) | 0.3296 (14) | 0.9272 (12) | 0.036 (3) | |
C2 | 0.3821 (7) | 0.4436 (15) | 0.8509 (13) | 0.043 (3) | |
H2 | 0.4075 | 0.4988 | 0.7950 | 0.052* | |
C3 | 0.3079 (9) | 0.4755 (18) | 0.8577 (16) | 0.057 (4) | |
H3 | 0.2836 | 0.5541 | 0.8082 | 0.068* | |
C4 | 0.2694 (8) | 0.3939 (16) | 0.9356 (15) | 0.047 (3) | |
H4 | 0.2185 | 0.4156 | 0.9369 | 0.057* | |
C5 | 0.3052 (7) | 0.2777 (15) | 1.0138 (13) | 0.041 (3) | |
H5 | 0.2790 | 0.2217 | 1.0678 | 0.049* | |
C6 | 0.3807 (7) | 0.2479 (15) | 1.0092 (14) | 0.041 (3) | |
H6 | 0.4060 | 0.1719 | 1.0621 | 0.049* | |
C7 | 0.4996 (7) | 0.2964 (14) | 0.9137 (11) | 0.035 (3) | |
C8 | 0.6579 (7) | 0.1120 (14) | 1.1159 (12) | 0.036 (3) | |
H8 | 0.6375 | 0.0800 | 1.1924 | 0.043* | |
C9 | 0.7375 (7) | 0.0770 (13) | 1.1107 (13) | 0.034 (3) | |
C10 | 0.7797 (7) | −0.0131 (15) | 1.2142 (14) | 0.042 (3) | |
H10 | 0.7576 | −0.0486 | 1.2872 | 0.051* | |
C11 | 0.8534 (8) | −0.0503 (15) | 1.2102 (14) | 0.043 (3) | |
C12 | 0.8881 (7) | 0.0029 (13) | 1.1027 (14) | 0.040 (3) | |
H12 | 0.9385 | −0.0225 | 1.1010 | 0.048* | |
C13 | 0.8471 (7) | 0.0932 (13) | 0.9997 (13) | 0.034 (3) | |
C14 | 0.7710 (6) | 0.1333 (13) | 1.0022 (12) | 0.031 (2) |
U11 | U22 | U33 | U12 | U13 | U23 | |
I1 | 0.0346 (4) | 0.0620 (6) | 0.0442 (5) | 0.0048 (4) | 0.0159 (4) | 0.0154 (4) |
I2 | 0.0733 (8) | 0.0933 (9) | 0.0714 (8) | 0.0406 (7) | 0.0266 (6) | 0.0484 (7) |
O1 | 0.041 (5) | 0.074 (7) | 0.047 (6) | 0.002 (5) | 0.021 (4) | 0.010 (5) |
O2 | 0.034 (4) | 0.048 (5) | 0.051 (5) | 0.007 (4) | 0.015 (4) | 0.015 (4) |
N1 | 0.032 (5) | 0.064 (7) | 0.036 (6) | 0.015 (5) | 0.015 (4) | 0.005 (5) |
N2 | 0.024 (5) | 0.058 (7) | 0.042 (6) | 0.002 (5) | 0.017 (4) | −0.006 (5) |
C1 | 0.026 (6) | 0.053 (8) | 0.025 (6) | 0.003 (5) | −0.001 (5) | −0.006 (5) |
C2 | 0.041 (7) | 0.054 (8) | 0.034 (7) | 0.006 (6) | 0.006 (6) | 0.000 (6) |
C3 | 0.052 (9) | 0.066 (10) | 0.051 (8) | 0.018 (8) | 0.010 (7) | 0.002 (8) |
C4 | 0.036 (7) | 0.055 (9) | 0.054 (8) | 0.007 (6) | 0.016 (6) | −0.002 (7) |
C5 | 0.035 (6) | 0.059 (8) | 0.033 (6) | 0.003 (6) | 0.016 (5) | 0.003 (6) |
C6 | 0.034 (6) | 0.046 (8) | 0.046 (7) | 0.008 (6) | 0.013 (6) | 0.010 (6) |
C7 | 0.031 (6) | 0.057 (8) | 0.017 (5) | 0.001 (5) | 0.007 (4) | 0.001 (5) |
C8 | 0.034 (6) | 0.052 (8) | 0.023 (6) | 0.005 (6) | 0.011 (5) | −0.005 (5) |
C9 | 0.034 (6) | 0.039 (7) | 0.031 (6) | 0.003 (5) | 0.010 (5) | −0.002 (5) |
C10 | 0.042 (7) | 0.053 (8) | 0.036 (7) | 0.007 (6) | 0.016 (6) | 0.006 (6) |
C11 | 0.046 (7) | 0.048 (8) | 0.034 (6) | 0.007 (6) | 0.008 (6) | 0.006 (6) |
C12 | 0.042 (7) | 0.037 (7) | 0.044 (7) | 0.011 (6) | 0.016 (6) | 0.004 (5) |
C13 | 0.033 (6) | 0.037 (7) | 0.032 (6) | 0.003 (5) | 0.008 (5) | −0.002 (5) |
C14 | 0.031 (6) | 0.033 (6) | 0.028 (6) | 0.006 (5) | 0.006 (5) | −0.003 (5) |
I1—C13 | 2.070 (12) | C4—C5 | 1.393 (19) |
I2—C11 | 2.090 (13) | C4—H4 | 0.9300 |
O1—C7 | 1.231 (14) | C5—C6 | 1.379 (17) |
O2—C14 | 1.342 (14) | C5—H5 | 0.9300 |
O2—H2A | 0.8480 | C6—H6 | 0.9300 |
N1—C7 | 1.370 (15) | C8—C9 | 1.463 (16) |
N1—N2 | 1.370 (13) | C8—H8 | 0.9300 |
N1—H1 | 0.8600 | C9—C10 | 1.382 (17) |
N2—C8 | 1.268 (16) | C9—C14 | 1.402 (16) |
C1—C2 | 1.375 (18) | C10—C11 | 1.363 (18) |
C1—C6 | 1.376 (18) | C10—H10 | 0.9300 |
C1—C7 | 1.500 (16) | C11—C12 | 1.397 (18) |
C2—C3 | 1.366 (19) | C12—C13 | 1.373 (17) |
C2—H2 | 0.9300 | C12—H12 | 0.9300 |
C3—C4 | 1.35 (2) | C13—C14 | 1.409 (16) |
C3—H3 | 0.9300 | ||
C14—O2—H2A | 108.9 | O1—C7—C1 | 122.2 (11) |
C7—N1—N2 | 116.6 (10) | N1—C7—C1 | 115.2 (10) |
C7—N1—H1 | 121.7 | N2—C8—C9 | 119.7 (11) |
N2—N1—H1 | 121.7 | N2—C8—H8 | 120.1 |
C8—N2—N1 | 118.1 (10) | C9—C8—H8 | 120.1 |
C2—C1—C6 | 119.8 (11) | C10—C9—C14 | 120.1 (11) |
C2—C1—C7 | 117.9 (12) | C10—C9—C8 | 119.2 (11) |
C6—C1—C7 | 122.2 (11) | C14—C9—C8 | 120.8 (11) |
C3—C2—C1 | 119.8 (14) | C11—C10—C9 | 120.5 (12) |
C3—C2—H2 | 120.1 | C11—C10—H10 | 119.7 |
C1—C2—H2 | 120.1 | C9—C10—H10 | 119.7 |
C4—C3—C2 | 120.7 (14) | C10—C11—C12 | 120.8 (12) |
C4—C3—H3 | 119.6 | C10—C11—I2 | 120.9 (10) |
C2—C3—H3 | 119.6 | C12—C11—I2 | 118.3 (9) |
C3—C4—C5 | 120.7 (13) | C13—C12—C11 | 119.4 (11) |
C3—C4—H4 | 119.6 | C13—C12—H12 | 120.3 |
C5—C4—H4 | 119.6 | C11—C12—H12 | 120.3 |
C6—C5—C4 | 118.3 (12) | C12—C13—C14 | 120.7 (11) |
C6—C5—H5 | 120.9 | C12—C13—I1 | 119.6 (9) |
C4—C5—H5 | 120.9 | C14—C13—I1 | 119.7 (9) |
C1—C6—C5 | 120.7 (12) | O2—C14—C9 | 123.3 (10) |
C1—C6—H6 | 119.7 | O2—C14—C13 | 118.1 (10) |
C5—C6—H6 | 119.7 | C9—C14—C13 | 118.5 (11) |
O1—C7—N1 | 122.6 (11) | ||
C7—N1—N2—C8 | −178.8 (12) | N2—C8—C9—C14 | 4.9 (19) |
C6—C1—C2—C3 | 0 (2) | C14—C9—C10—C11 | −1 (2) |
C7—C1—C2—C3 | 178.5 (12) | C8—C9—C10—C11 | 178.5 (13) |
C1—C2—C3—C4 | −2 (2) | C9—C10—C11—C12 | 1 (2) |
C2—C3—C4—C5 | 2 (2) | C9—C10—C11—I2 | 178.5 (10) |
C3—C4—C5—C6 | 0 (2) | C10—C11—C12—C13 | 0 (2) |
C2—C1—C6—C5 | 1 (2) | I2—C11—C12—C13 | −178.1 (10) |
C7—C1—C6—C5 | −177.0 (12) | C11—C12—C13—C14 | 0.5 (19) |
C4—C5—C6—C1 | −1 (2) | C11—C12—C13—I1 | −178.9 (10) |
N2—N1—C7—O1 | 1.0 (19) | C10—C9—C14—O2 | −177.3 (12) |
N2—N1—C7—C1 | −179.9 (11) | C8—C9—C14—O2 | 2.8 (18) |
C2—C1—C7—O1 | −22.7 (18) | C10—C9—C14—C13 | 1.5 (18) |
C6—C1—C7—O1 | 155.4 (13) | C8—C9—C14—C13 | −178.4 (11) |
C2—C1—C7—N1 | 158.2 (12) | C12—C13—C14—O2 | 177.8 (11) |
C6—C1—C7—N1 | −23.7 (18) | I1—C13—C14—O2 | −2.8 (15) |
N1—N2—C8—C9 | −179.4 (11) | C12—C13—C14—C9 | −1.1 (18) |
N2—C8—C9—C10 | −175.0 (13) | I1—C13—C14—C9 | 178.3 (9) |
D—H···A | D—H | H···A | D···A | D—H···A |
O2—H2A···N2 | 0.85 | 1.84 | 2.586 (13) | 145 |
N1—H1···O1i | 0.86 | 2.02 | 2.824 (14) | 155 |
C3—H3···O2ii | 0.93 | 2.53 | 3.365 (19) | 150 |
Symmetry codes: (i) x, −y+1/2, z+1/2; (ii) −x+1, y+1/2, −z+3/2. |
Experimental details
Crystal data | |
Chemical formula | C14H10I2N2O2 |
Mr | 492.04 |
Crystal system, space group | Monoclinic, P21/c |
Temperature (K) | 295 |
a, b, c (Å) | 17.7495 (13), 9.4273 (6), 9.4684 (7) |
β (°) | 103.052 (3) |
V (Å3) | 1543.42 (19) |
Z | 4 |
Radiation type | Mo Kα |
µ (mm−1) | 4.08 |
Crystal size (mm) | 0.20 × 0.10 × 0.10 |
Data collection | |
Diffractometer | Bruker Kappa APEXII |
Absorption correction | Multi-scan (SADABS; Sheldrick, 1996) |
Tmin, Tmax | 0.496, 0.686 |
No. of measured, independent and observed [I > 2σ(I)] reflections | 13146, 2708, 2349 |
Rint | 0.029 |
(sin θ/λ)max (Å−1) | 0.594 |
Refinement | |
R[F2 > 2σ(F2)], wR(F2), S | 0.058, 0.172, 1.11 |
No. of reflections | 2708 |
No. of parameters | 182 |
H-atom treatment | H-atom parameters constrained |
w = 1/[σ2(Fo2) + (0.0412P)2 + 42.3729P] where P = (Fo2 + 2Fc2)/3 | |
Δρmax, Δρmin (e Å−3) | 1.48, −1.52 |
Computer programs: APEX2 (Bruker, 2004), SAINT (Bruker, 2004), SHELXS97 (Sheldrick, 2008), SHELXL97 (Sheldrick, 2008), PLATON (Spek, 2009).
D—H···A | D—H | H···A | D···A | D—H···A |
O2—H2A···N2 | 0.85 | 1.84 | 2.586 (13) | 145 |
N1—H1···O1i | 0.86 | 2.02 | 2.824 (14) | 155 |
C3—H3···O2ii | 0.93 | 2.53 | 3.365 (19) | 150 |
Symmetry codes: (i) x, −y+1/2, z+1/2; (ii) −x+1, y+1/2, −z+3/2. |
Acknowledgements
The authors wish to acknowledge the SAIF, IIT, Madras, for the data collection.
References
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Schiff base ligands play an important role in the development of coordination chemistry and possess important properties such as biological activity (Golcu et al., 2005; Liu & Yang, 2010), catalytic activity (Daier et al., 2004) and photochromic properties (Zgierski & Grabowska, 2000).
The goemetric parameters of the title compound (Fig. 1) agree well with related structures (Manvizhi et al., 2011; Thirugnanasundar et al., 2011). The two aromatic rings are inclined at an angle of 16.72 (33)°.
The molecular structure is stabilized by an intramolecular O-H···N hydrogen bond. The crystal structure is controlled by intermolecular N-H···O and C—H···O (Fig. 2 & Table 1) interactions.