organic compounds
1,5-Bis(1-phenylethylidene)carbonohydrazide
aDongchang College, Liaocheng University, Liaocheng 250059, People's Republic of China
*Correspondence e-mail: konglingqian08@163.com
In the title molecule, C17H18N4O, the two phenyl rings form a dihedral angle of 18.15 (17)°. In the crystal, pairs of intermolecular N—H⋯O hydrogen bonds link the molecules into centrosymmetric dimers. Weak intermolecular C—H⋯O interactions further link the dimers into chains running along [010].
Related literature
For related structures, see: Qiao et al. (2010); Kolb et al. (19944); Meyers et al. (1995).
Experimental
Crystal data
|
Refinement
|
Data collection: SMART (Bruker, 2007); cell SAINT (Bruker, 2007); 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
https://doi.org/10.1107/S1600536810042121/cv2776sup1.cif
contains datablocks I, global. DOI:Structure factors: contains datablock I. DOI: https://doi.org/10.1107/S1600536810042121/cv2776Isup2.hkl
Acetophenone (10.0 mmol) and carbohydrazide (5.0 mmol) were mixed in 50 ml flash under sovlent-free condtions. After stirring for 3 h at 373 K, the resulting mixture was cooled to room temperature, and recrystalized from ethanol, and afforded the title compound as a crystalline solid.
All H atoms were placed in geometrically idealized positions (N—H = 0.86 and C—H = 0.93–0.96 Å) and treated as riding on their parent atoms, with Uiso(H) = 1.2–1.5Ueq(C, N).
In continuation of our study of
and carbonohydrazides (Qiao et al., 2010), we obtained the title compound, (I), and present here its crystal structure.In (I) (Fig. 1), the bond lengths and angles are normal and comparable to those observed in bis(4-methoxyphenylmethine)carbonohydrazide (Kolb et al., 1994) and bis(3-fluorophenylmethine)carbonohydrazide (Meyers et al., 1995). The C=N bond lengths are 1.282 (3) ° and 1.286 (3)° (C10=N1 and C2=N4, respectively) showing their double-bond character. Two phenyl rings - C4-C9 and C12—C17, respectively - form a dihedral angle of 18.15 (17)°.
In the
intermolecular N—H···O hydrogen bonds (Table 1) link the molecules into centrosymmetric dimers, and weak intermolecular C—H···O interactions (Table 1) link further these dimers into chains running in direction [010].For related structures, see: Qiao et al. (2010); Kolb et al. (19944); Meyers et al. (1995).
Data collection: SMART (Bruker, 2007); cell
SAINT (Bruker, 2007); data reduction: SAINT (Bruker, 2007); 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. A view of (I) showing the atomic numbering scheme and 30% probability displacement ellipsoids. |
C17H18N4O | F(000) = 624 |
Mr = 294.35 | Dx = 1.254 Mg m−3 |
Monoclinic, P2/n | Mo Kα radiation, λ = 0.71073 Å |
a = 12.9393 (12) Å | Cell parameters from 1233 reflections |
b = 5.4858 (5) Å | θ = 2.9–21.2° |
c = 22.703 (2) Å | µ = 0.08 mm−1 |
β = 104.681 (1)° | T = 298 K |
V = 1558.9 (2) Å3 | Block, colourless |
Z = 4 | 0.50 × 0.31 × 0.25 mm |
Bruker SMART APEX CCD area-detector diffractometer | 2757 independent reflections |
Radiation source: fine-focus sealed tube | 1389 reflections with I > 2σ(I) |
Graphite monochromator | Rint = 0.048 |
phi and ω scans | θmax = 25.0°, θmin = 2.9° |
Absorption correction: multi-scan (SADABS; Sheldrick, 1996) | h = −15→15 |
Tmin = 0.960, Tmax = 0.980 | k = −6→6 |
7406 measured reflections | l = −26→16 |
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) = 0.148 | H-atom parameters constrained |
S = 0.90 | w = 1/[σ2(Fo2) + (0.0747P)2] where P = (Fo2 + 2Fc2)/3 |
2757 reflections | (Δ/σ)max < 0.001 |
201 parameters | Δρmax = 0.18 e Å−3 |
1 restraint | Δρmin = −0.13 e Å−3 |
C17H18N4O | V = 1558.9 (2) Å3 |
Mr = 294.35 | Z = 4 |
Monoclinic, P2/n | Mo Kα radiation |
a = 12.9393 (12) Å | µ = 0.08 mm−1 |
b = 5.4858 (5) Å | T = 298 K |
c = 22.703 (2) Å | 0.50 × 0.31 × 0.25 mm |
β = 104.681 (1)° |
Bruker SMART APEX CCD area-detector diffractometer | 2757 independent reflections |
Absorption correction: multi-scan (SADABS; Sheldrick, 1996) | 1389 reflections with I > 2σ(I) |
Tmin = 0.960, Tmax = 0.980 | Rint = 0.048 |
7406 measured reflections |
R[F2 > 2σ(F2)] = 0.049 | 1 restraint |
wR(F2) = 0.148 | H-atom parameters constrained |
S = 0.90 | Δρmax = 0.18 e Å−3 |
2757 reflections | Δρmin = −0.13 e Å−3 |
201 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 | ||
O5 | 0.86754 (12) | 0.0739 (3) | 0.46156 (9) | 0.0764 (6) | |
N1 | 0.96224 (16) | 0.4666 (4) | 0.58368 (10) | 0.0631 (6) | |
N2 | 0.96359 (15) | 0.2825 (4) | 0.54321 (10) | 0.0679 (6) | |
H2 | 1.0196 | 0.1938 | 0.5466 | 0.082* | |
N3 | 0.79610 (14) | 0.4095 (4) | 0.49611 (9) | 0.0668 (6) | |
H3 | 0.8087 | 0.5299 | 0.5212 | 0.080* | |
N4 | 0.69764 (15) | 0.3902 (4) | 0.45574 (9) | 0.0596 (6) | |
C1 | 0.87369 (18) | 0.2428 (5) | 0.49730 (13) | 0.0614 (7) | |
C2 | 0.63193 (18) | 0.5649 (4) | 0.45685 (10) | 0.0542 (6) | |
C3 | 0.65842 (18) | 0.7846 (5) | 0.49701 (13) | 0.0795 (8) | |
H3A | 0.6503 | 0.7461 | 0.5368 | 0.119* | |
H3B | 0.6111 | 0.9157 | 0.4800 | 0.119* | |
H3C | 0.7309 | 0.8329 | 0.5000 | 0.119* | |
C4 | 0.52443 (18) | 0.5423 (5) | 0.41536 (11) | 0.0551 (6) | |
C5 | 0.4445 (2) | 0.7041 (6) | 0.41690 (14) | 0.0928 (10) | |
H5 | 0.4592 | 0.8337 | 0.4442 | 0.111* | |
C6 | 0.3434 (2) | 0.6811 (7) | 0.37943 (17) | 0.1109 (12) | |
H6 | 0.2909 | 0.7936 | 0.3818 | 0.133* | |
C7 | 0.3200 (2) | 0.4948 (7) | 0.33899 (14) | 0.0934 (10) | |
H7 | 0.2518 | 0.4792 | 0.3133 | 0.112* | |
C8 | 0.3977 (2) | 0.3314 (6) | 0.33648 (14) | 0.1002 (11) | |
H8 | 0.3828 | 0.2028 | 0.3089 | 0.120* | |
C9 | 0.4984 (2) | 0.3561 (6) | 0.37467 (13) | 0.0836 (9) | |
H9 | 0.5503 | 0.2416 | 0.3726 | 0.100* | |
C10 | 1.04459 (19) | 0.5073 (5) | 0.62766 (12) | 0.0618 (7) | |
C11 | 1.14821 (18) | 0.3686 (5) | 0.63824 (12) | 0.0783 (8) | |
H11A | 1.1447 | 0.2260 | 0.6622 | 0.117* | |
H11B | 1.2060 | 0.4706 | 0.6595 | 0.117* | |
H11C | 1.1600 | 0.3207 | 0.5998 | 0.117* | |
C12 | 1.03396 (18) | 0.7066 (5) | 0.66970 (11) | 0.0613 (7) | |
C13 | 0.9504 (2) | 0.8704 (6) | 0.65627 (13) | 0.0774 (8) | |
H13 | 0.8986 | 0.8551 | 0.6197 | 0.093* | |
C14 | 0.9416 (2) | 1.0546 (6) | 0.69527 (16) | 0.0880 (9) | |
H14 | 0.8835 | 1.1601 | 0.6853 | 0.106* | |
C15 | 1.0179 (3) | 1.0851 (6) | 0.74911 (15) | 0.0845 (9) | |
H15 | 1.0131 | 1.2126 | 0.7753 | 0.101* | |
C16 | 1.1002 (2) | 0.9256 (7) | 0.76324 (14) | 0.0906 (10) | |
H16 | 1.1521 | 0.9426 | 0.7998 | 0.109* | |
C17 | 1.1083 (2) | 0.7385 (6) | 0.72431 (14) | 0.0815 (9) | |
H17 | 1.1655 | 0.6309 | 0.7352 | 0.098* |
U11 | U22 | U33 | U12 | U13 | U23 | |
O5 | 0.0605 (11) | 0.0704 (14) | 0.0975 (14) | 0.0118 (9) | 0.0187 (10) | −0.0167 (11) |
N1 | 0.0542 (12) | 0.0619 (15) | 0.0726 (14) | 0.0052 (11) | 0.0148 (11) | 0.0028 (12) |
N2 | 0.0497 (12) | 0.0686 (16) | 0.0815 (15) | 0.0129 (11) | 0.0094 (12) | 0.0009 (13) |
N3 | 0.0482 (12) | 0.0621 (15) | 0.0854 (15) | 0.0119 (11) | 0.0083 (11) | −0.0128 (12) |
N4 | 0.0495 (11) | 0.0583 (14) | 0.0715 (13) | 0.0102 (10) | 0.0163 (10) | −0.0017 (11) |
C1 | 0.0501 (15) | 0.0579 (19) | 0.0787 (18) | 0.0091 (14) | 0.0209 (14) | 0.0069 (15) |
C2 | 0.0537 (14) | 0.0501 (17) | 0.0622 (15) | 0.0050 (12) | 0.0208 (13) | 0.0021 (13) |
C3 | 0.0647 (16) | 0.064 (2) | 0.105 (2) | 0.0061 (14) | 0.0140 (15) | −0.0156 (17) |
C4 | 0.0546 (14) | 0.0531 (17) | 0.0595 (15) | 0.0097 (12) | 0.0178 (12) | 0.0005 (13) |
C5 | 0.0669 (18) | 0.080 (2) | 0.120 (2) | 0.0188 (16) | 0.0031 (18) | −0.0300 (19) |
C6 | 0.069 (2) | 0.109 (3) | 0.139 (3) | 0.0329 (19) | −0.003 (2) | −0.027 (3) |
C7 | 0.0665 (18) | 0.113 (3) | 0.089 (2) | 0.014 (2) | −0.0036 (16) | −0.011 (2) |
C8 | 0.086 (2) | 0.109 (3) | 0.093 (2) | 0.022 (2) | −0.0016 (19) | −0.032 (2) |
C9 | 0.0678 (18) | 0.093 (2) | 0.0825 (19) | 0.0223 (16) | 0.0058 (16) | −0.0227 (19) |
C10 | 0.0493 (14) | 0.0676 (19) | 0.0676 (17) | 0.0015 (13) | 0.0133 (14) | 0.0164 (15) |
C11 | 0.0550 (14) | 0.091 (2) | 0.0872 (19) | 0.0137 (15) | 0.0146 (14) | 0.0071 (17) |
C12 | 0.0480 (14) | 0.0679 (19) | 0.0677 (17) | −0.0023 (13) | 0.0139 (13) | 0.0092 (15) |
C13 | 0.0674 (17) | 0.076 (2) | 0.083 (2) | 0.0100 (16) | 0.0071 (15) | 0.0017 (18) |
C14 | 0.079 (2) | 0.081 (2) | 0.104 (2) | 0.0140 (17) | 0.023 (2) | −0.001 (2) |
C15 | 0.083 (2) | 0.082 (2) | 0.094 (2) | −0.0121 (18) | 0.0339 (19) | −0.0083 (19) |
C16 | 0.0691 (19) | 0.116 (3) | 0.083 (2) | −0.004 (2) | 0.0131 (17) | −0.006 (2) |
C17 | 0.0582 (16) | 0.095 (2) | 0.087 (2) | 0.0092 (16) | 0.0111 (16) | −0.0002 (19) |
O5—C1 | 1.221 (3) | C7—H7 | 0.9300 |
N1—C10 | 1.282 (3) | C8—C9 | 1.377 (3) |
N1—N2 | 1.368 (3) | C8—H8 | 0.9300 |
N2—C1 | 1.368 (3) | C9—H9 | 0.9300 |
N2—H2 | 0.8600 | C10—C12 | 1.480 (4) |
N3—C1 | 1.353 (3) | C10—C11 | 1.507 (3) |
N3—N4 | 1.372 (2) | C11—H11A | 0.9600 |
N3—H3 | 0.8600 | C11—H11B | 0.9600 |
N4—C2 | 1.286 (3) | C11—H11C | 0.9600 |
C2—C4 | 1.474 (3) | C12—C17 | 1.374 (3) |
C2—C3 | 1.498 (3) | C12—C13 | 1.379 (3) |
C3—H3A | 0.9600 | C13—C14 | 1.367 (4) |
C3—H3B | 0.9600 | C13—H13 | 0.9300 |
C3—H3C | 0.9600 | C14—C15 | 1.373 (4) |
C4—C9 | 1.361 (3) | C14—H14 | 0.9300 |
C4—C5 | 1.370 (3) | C15—C16 | 1.353 (4) |
C5—C6 | 1.374 (4) | C15—H15 | 0.9300 |
C5—H5 | 0.9300 | C16—C17 | 1.376 (4) |
C6—C7 | 1.356 (4) | C16—H16 | 0.9300 |
C6—H6 | 0.9300 | C17—H17 | 0.9300 |
C7—C8 | 1.358 (4) | ||
C10—N1—N2 | 120.1 (2) | C7—C8—H8 | 120.0 |
C1—N2—N1 | 118.4 (2) | C9—C8—H8 | 120.0 |
C1—N2—H2 | 120.8 | C4—C9—C8 | 122.2 (3) |
N1—N2—H2 | 120.8 | C4—C9—H9 | 118.9 |
C1—N3—N4 | 121.3 (2) | C8—C9—H9 | 118.9 |
C1—N3—H3 | 119.3 | N1—C10—C12 | 115.9 (2) |
N4—N3—H3 | 119.3 | N1—C10—C11 | 124.5 (3) |
C2—N4—N3 | 115.9 (2) | C12—C10—C11 | 119.6 (2) |
O5—C1—N3 | 125.2 (2) | C10—C11—H11A | 109.5 |
O5—C1—N2 | 121.8 (2) | C10—C11—H11B | 109.5 |
N3—C1—N2 | 113.0 (3) | H11A—C11—H11B | 109.5 |
N4—C2—C4 | 116.5 (2) | C10—C11—H11C | 109.5 |
N4—C2—C3 | 124.2 (2) | H11A—C11—H11C | 109.5 |
C4—C2—C3 | 119.3 (2) | H11B—C11—H11C | 109.5 |
C2—C3—H3A | 109.5 | C17—C12—C13 | 116.5 (3) |
C2—C3—H3B | 109.5 | C17—C12—C10 | 121.2 (2) |
H3A—C3—H3B | 109.5 | C13—C12—C10 | 122.3 (2) |
C2—C3—H3C | 109.5 | C14—C13—C12 | 121.8 (3) |
H3A—C3—H3C | 109.5 | C14—C13—H13 | 119.1 |
H3B—C3—H3C | 109.5 | C12—C13—H13 | 119.1 |
C9—C4—C5 | 116.4 (2) | C13—C14—C15 | 120.5 (3) |
C9—C4—C2 | 121.9 (2) | C13—C14—H14 | 119.7 |
C5—C4—C2 | 121.7 (2) | C15—C14—H14 | 119.7 |
C4—C5—C6 | 122.1 (3) | C16—C15—C14 | 118.5 (3) |
C4—C5—H5 | 119.0 | C16—C15—H15 | 120.7 |
C6—C5—H5 | 119.0 | C14—C15—H15 | 120.7 |
C7—C6—C5 | 120.2 (3) | C15—C16—C17 | 120.9 (3) |
C7—C6—H6 | 119.9 | C15—C16—H16 | 119.5 |
C5—C6—H6 | 119.9 | C17—C16—H16 | 119.5 |
C6—C7—C8 | 119.0 (3) | C12—C17—C16 | 121.7 (3) |
C6—C7—H7 | 120.5 | C12—C17—H17 | 119.2 |
C8—C7—H7 | 120.5 | C16—C17—H17 | 119.2 |
C7—C8—C9 | 120.1 (3) |
D—H···A | D—H | H···A | D···A | D—H···A |
C3—H3C···O5i | 0.96 | 2.53 | 3.405 (3) | 151 |
N2—H2···O5ii | 0.86 | 2.11 | 2.955 (3) | 166 |
Symmetry codes: (i) x, y+1, z; (ii) −x+2, −y, −z+1. |
Experimental details
Crystal data | |
Chemical formula | C17H18N4O |
Mr | 294.35 |
Crystal system, space group | Monoclinic, P2/n |
Temperature (K) | 298 |
a, b, c (Å) | 12.9393 (12), 5.4858 (5), 22.703 (2) |
β (°) | 104.681 (1) |
V (Å3) | 1558.9 (2) |
Z | 4 |
Radiation type | Mo Kα |
µ (mm−1) | 0.08 |
Crystal size (mm) | 0.50 × 0.31 × 0.25 |
Data collection | |
Diffractometer | Bruker SMART APEX CCD area-detector |
Absorption correction | Multi-scan (SADABS; Sheldrick, 1996) |
Tmin, Tmax | 0.960, 0.980 |
No. of measured, independent and observed [I > 2σ(I)] reflections | 7406, 2757, 1389 |
Rint | 0.048 |
(sin θ/λ)max (Å−1) | 0.595 |
Refinement | |
R[F2 > 2σ(F2)], wR(F2), S | 0.049, 0.148, 0.90 |
No. of reflections | 2757 |
No. of parameters | 201 |
No. of restraints | 1 |
H-atom treatment | H-atom parameters constrained |
Δρmax, Δρmin (e Å−3) | 0.18, −0.13 |
Computer programs: SMART (Bruker, 2007), SAINT (Bruker, 2007), SHELXS97 (Sheldrick, 2008), SHELXL97 (Sheldrick, 2008), SHELXTL (Sheldrick, 2008).
D—H···A | D—H | H···A | D···A | D—H···A |
C3—H3C···O5i | 0.96 | 2.53 | 3.405 (3) | 151.0 |
N2—H2···O5ii | 0.86 | 2.11 | 2.955 (3) | 166.3 |
Symmetry codes: (i) x, y+1, z; (ii) −x+2, −y, −z+1. |
Acknowledgements
This project was supported by the Foundation of Dongchang College, Liaocheng University (grant No. LG0801).
References
Bruker (2007). SMART and SAINT. Bruker AXS Inc., Madison, Wisconsin, USA. Google Scholar
Kolb, V. M., Robinson, P. D. & Meyers, C. Y. (1994). Acta Cryst. C50, 417–419. CSD CrossRef CAS Web of Science IUCr Journals Google Scholar
Meyers, C. Y., Kolb, V. M. & Robinson, P. D. (1995). Acta Cryst. C51, 775–777. CSD CrossRef CAS Web of Science IUCr Journals Google Scholar
Qiao, Y., Ju, X., Gao, Z. & Kong, L. (2010). Acta Cryst. E66, o2691. Web of Science CSD CrossRef IUCr Journals Google Scholar
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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.
In continuation of our study of Schiff bases and carbonohydrazides (Qiao et al., 2010), we obtained the title compound, (I), and present here its crystal structure.
In (I) (Fig. 1), the bond lengths and angles are normal and comparable to those observed in bis(4-methoxyphenylmethine)carbonohydrazide (Kolb et al., 1994) and bis(3-fluorophenylmethine)carbonohydrazide (Meyers et al., 1995). The C=N bond lengths are 1.282 (3) ° and 1.286 (3)° (C10=N1 and C2=N4, respectively) showing their double-bond character. Two phenyl rings - C4-C9 and C12—C17, respectively - form a dihedral angle of 18.15 (17)°.
In the crystal structure, intermolecular N—H···O hydrogen bonds (Table 1) link the molecules into centrosymmetric dimers, and weak intermolecular C—H···O interactions (Table 1) link further these dimers into chains running in direction [010].