Related literature
For related structures, see: Li & Jian (2010); Li & Meng (2010).
Experimental
Crystal data
C10H12N2O2 Mr = 192.22 Orthorhombic, P b c a a = 11.309 (2) Å b = 7.6693 (15) Å c = 24.684 (5) Å V = 2140.8 (7) Å3 Z = 8 Mo Kα radiation μ = 0.09 mm−1 T = 293 K 0.22 × 0.20 × 0.18 mm
|
Data collection
Bruker SMART CCD diffractometer 19439 measured reflections 2449 independent reflections 1147 reflections with I > 2σ(I) Rint = 0.100
|
D—H⋯A | D—H | H⋯A | D⋯A | D—H⋯A | N1—H1A⋯O2i | 0.86 | 2.04 | 2.885 (3) | 168 | Symmetry code: (i) . | |
Data collection: SMART (Bruker, 1997); cell refinement: SAINT (Bruker, 1997); 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
A mixture of benzaldehyde (0.01 mol) and ethyl carbazate (0.01 mol) was stirred in refluxing ethanol (20 mL) for 2 h to afford the title compound (0.095 mol, yield 95%). Colourless blocks were obtained by recrystallization from ethanol at room temperature.
H atoms were fixed geometrically and allowed to ride on their attached atoms, with C—H distances=0.97 Å, and with Uiso=1.2–1.5Ueq.
Structure description
top For related structures, see: Li & Jian (2010); Li & Meng (2010).
Data collection: SMART (Bruker, 1997); cell refinement: SAINT (Bruker, 1997); data reduction: SAINT (Bruker, 1997); 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).
Ethyl 3-benzylidenecarbazate
top Crystal data top C10H12N2O2 | Dx = 1.193 Mg m−3 |
Mr = 192.22 | Mo Kα radiation, λ = 0.71073 Å |
Orthorhombic, Pbca | Cell parameters from 2449 reflections |
a = 11.309 (2) Å | θ = 3.3–27.5° |
b = 7.6693 (15) Å | µ = 0.09 mm−1 |
c = 24.684 (5) Å | T = 293 K |
V = 2140.8 (7) Å3 | Block, colorless |
Z = 8 | 0.22 × 0.20 × 0.18 mm |
F(000) = 816 | |
Data collection top Bruker SMART CCD diffractometer | 1147 reflections with I > 2σ(I) |
Radiation source: fine-focus sealed tube | Rint = 0.100 |
Graphite monochromator | θmax = 27.5°, θmin = 3.3° |
φ and ω scans | h = −14→14 |
19439 measured reflections | k = −9→8 |
2449 independent reflections | l = −32→31 |
Refinement top 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)] = 0.067 | Hydrogen site location: inferred from neighbouring sites |
wR(F2) = 0.206 | H-atom parameters constrained |
S = 1.00 | w = 1/[σ2(Fo2) + (0.1041P)2] where P = (Fo2 + 2Fc2)/3 |
2449 reflections | (Δ/σ)max < 0.001 |
127 parameters | Δρmax = 0.20 e Å−3 |
0 restraints | Δρmin = −0.22 e Å−3 |
Crystal data top C10H12N2O2 | V = 2140.8 (7) Å3 |
Mr = 192.22 | Z = 8 |
Orthorhombic, Pbca | Mo Kα radiation |
a = 11.309 (2) Å | µ = 0.09 mm−1 |
b = 7.6693 (15) Å | T = 293 K |
c = 24.684 (5) Å | 0.22 × 0.20 × 0.18 mm |
Data collection top Bruker SMART CCD diffractometer | 1147 reflections with I > 2σ(I) |
19439 measured reflections | Rint = 0.100 |
2449 independent reflections | |
Refinement top R[F2 > 2σ(F2)] = 0.067 | 0 restraints |
wR(F2) = 0.206 | H-atom parameters constrained |
S = 1.00 | Δρmax = 0.20 e Å−3 |
2449 reflections | Δρmin = −0.22 e Å−3 |
127 parameters | |
Special details top 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. |
Fractional atomic coordinates and isotropic or equivalent isotropic displacement parameters (Å2) top | x | y | z | Uiso*/Ueq | |
N2 | 0.26886 (18) | 0.1974 (3) | 0.64212 (7) | 0.0581 (6) | |
C5 | 0.3635 (2) | 0.2155 (3) | 0.72854 (9) | 0.0531 (6) | |
N1 | 0.2584 (2) | 0.2687 (3) | 0.59115 (7) | 0.0683 (6) | |
H1A | 0.3045 | 0.3519 | 0.5811 | 0.082* | |
C3 | 0.1754 (3) | 0.2069 (4) | 0.55722 (10) | 0.0662 (7) | |
O2 | 0.11238 (17) | 0.0819 (2) | 0.56498 (7) | 0.0752 (6) | |
C4 | 0.3463 (2) | 0.2693 (3) | 0.67226 (9) | 0.0591 (7) | |
H4A | 0.3930 | 0.3582 | 0.6581 | 0.071* | |
C6 | 0.4598 (2) | 0.2798 (4) | 0.75763 (10) | 0.0663 (7) | |
H6A | 0.5139 | 0.3528 | 0.7406 | 0.080* | |
O1 | 0.1713 (2) | 0.3068 (3) | 0.51302 (7) | 0.0940 (7) | |
C10 | 0.2827 (2) | 0.1092 (3) | 0.75513 (9) | 0.0591 (7) | |
H10A | 0.2171 | 0.0668 | 0.7366 | 0.071* | |
C8 | 0.3955 (3) | 0.1299 (4) | 0.83678 (10) | 0.0730 (8) | |
H8A | 0.4062 | 0.1007 | 0.8730 | 0.088* | |
C9 | 0.2993 (2) | 0.0663 (3) | 0.80883 (10) | 0.0689 (8) | |
H9A | 0.2453 | −0.0059 | 0.8263 | 0.083* | |
C7 | 0.4757 (2) | 0.2363 (4) | 0.81131 (11) | 0.0751 (8) | |
H7A | 0.5407 | 0.2790 | 0.8302 | 0.090* | |
C2 | 0.0890 (4) | 0.2517 (5) | 0.47098 (14) | 0.1325 (16) | |
H2B | 0.1114 | 0.1378 | 0.4573 | 0.159* | |
H2C | 0.0097 | 0.2435 | 0.4858 | 0.159* | |
C1 | 0.0915 (5) | 0.3756 (8) | 0.42843 (15) | 0.167 (2) | |
H1B | 0.0372 | 0.3408 | 0.4005 | 0.250* | |
H1C | 0.1699 | 0.3820 | 0.4137 | 0.250* | |
H1D | 0.0689 | 0.4878 | 0.4422 | 0.250* | |
Atomic displacement parameters (Å2) top | U11 | U22 | U33 | U12 | U13 | U23 |
N2 | 0.0598 (13) | 0.0575 (13) | 0.0569 (11) | 0.0006 (10) | −0.0028 (9) | 0.0056 (9) |
C5 | 0.0501 (14) | 0.0482 (14) | 0.0610 (13) | 0.0036 (11) | −0.0004 (10) | 0.0012 (10) |
N1 | 0.0776 (15) | 0.0659 (14) | 0.0613 (12) | −0.0123 (11) | −0.0069 (11) | 0.0136 (10) |
C3 | 0.0709 (18) | 0.0651 (18) | 0.0625 (15) | 0.0030 (15) | −0.0064 (13) | 0.0077 (13) |
O2 | 0.0767 (13) | 0.0716 (13) | 0.0773 (11) | −0.0072 (11) | −0.0111 (9) | 0.0063 (9) |
C4 | 0.0573 (15) | 0.0547 (15) | 0.0653 (14) | −0.0023 (12) | 0.0026 (11) | 0.0063 (11) |
C6 | 0.0498 (15) | 0.0712 (18) | 0.0778 (17) | −0.0037 (13) | −0.0045 (12) | 0.0056 (12) |
O1 | 0.1229 (17) | 0.0917 (15) | 0.0675 (11) | −0.0224 (13) | −0.0252 (11) | 0.0214 (10) |
C10 | 0.0559 (15) | 0.0573 (15) | 0.0643 (15) | −0.0027 (12) | −0.0024 (11) | 0.0006 (11) |
C8 | 0.0762 (19) | 0.077 (2) | 0.0653 (15) | 0.0128 (16) | −0.0065 (14) | 0.0001 (12) |
C9 | 0.0742 (19) | 0.0658 (17) | 0.0666 (15) | −0.0025 (14) | 0.0069 (13) | 0.0058 (12) |
C7 | 0.0577 (17) | 0.089 (2) | 0.0783 (17) | −0.0010 (15) | −0.0175 (14) | −0.0027 (15) |
C2 | 0.174 (4) | 0.142 (3) | 0.082 (2) | −0.046 (3) | −0.063 (2) | 0.026 (2) |
C1 | 0.172 (5) | 0.231 (6) | 0.096 (3) | −0.051 (4) | −0.045 (3) | 0.054 (3) |
Geometric parameters (Å, º) top N2—C4 | 1.275 (3) | C10—C9 | 1.379 (3) |
N2—N1 | 1.377 (2) | C10—H10A | 0.9300 |
C5—C10 | 1.389 (3) | C8—C7 | 1.372 (4) |
C5—C6 | 1.394 (3) | C8—C9 | 1.378 (4) |
C5—C4 | 1.462 (3) | C8—H8A | 0.9300 |
N1—C3 | 1.345 (3) | C9—H9A | 0.9300 |
N1—H1A | 0.8600 | C7—H7A | 0.9300 |
C3—O2 | 1.210 (3) | C2—C1 | 1.417 (5) |
C3—O1 | 1.334 (3) | C2—H2B | 0.9700 |
C4—H4A | 0.9300 | C2—H2C | 0.9700 |
C6—C7 | 1.378 (3) | C1—H1B | 0.9600 |
C6—H6A | 0.9300 | C1—H1C | 0.9600 |
O1—C2 | 1.457 (4) | C1—H1D | 0.9600 |
| | | |
C4—N2—N1 | 114.8 (2) | C7—C8—H8A | 119.9 |
C10—C5—C6 | 118.5 (2) | C9—C8—H8A | 119.9 |
C10—C5—C4 | 121.8 (2) | C8—C9—C10 | 120.3 (3) |
C6—C5—C4 | 119.5 (2) | C8—C9—H9A | 119.9 |
C3—N1—N2 | 119.3 (2) | C10—C9—H9A | 119.9 |
C3—N1—H1A | 120.4 | C8—C7—C6 | 119.8 (3) |
N2—N1—H1A | 120.4 | C8—C7—H7A | 120.1 |
O2—C3—O1 | 124.3 (2) | C6—C7—H7A | 120.1 |
O2—C3—N1 | 126.3 (2) | C1—C2—O1 | 108.7 (3) |
O1—C3—N1 | 109.3 (3) | C1—C2—H2B | 109.9 |
N2—C4—C5 | 121.6 (2) | O1—C2—H2B | 109.9 |
N2—C4—H4A | 119.2 | C1—C2—H2C | 109.9 |
C5—C4—H4A | 119.2 | O1—C2—H2C | 109.9 |
C7—C6—C5 | 120.8 (3) | H2B—C2—H2C | 108.3 |
C7—C6—H6A | 119.6 | C2—C1—H1B | 109.5 |
C5—C6—H6A | 119.6 | C2—C1—H1C | 109.5 |
C3—O1—C2 | 116.0 (2) | H1B—C1—H1C | 109.5 |
C9—C10—C5 | 120.3 (2) | C2—C1—H1D | 109.5 |
C9—C10—H10A | 119.8 | H1B—C1—H1D | 109.5 |
C5—C10—H10A | 119.8 | H1C—C1—H1D | 109.5 |
C7—C8—C9 | 120.2 (3) | | |
Hydrogen-bond geometry (Å, º) top D—H···A | D—H | H···A | D···A | D—H···A |
N1—H1A···O2i | 0.86 | 2.04 | 2.885 (3) | 168 |
Symmetry code: (i) −x+1/2, y+1/2, z. |
Experimental details
Crystal data |
Chemical formula | C10H12N2O2 |
Mr | 192.22 |
Crystal system, space group | Orthorhombic, Pbca |
Temperature (K) | 293 |
a, b, c (Å) | 11.309 (2), 7.6693 (15), 24.684 (5) |
V (Å3) | 2140.8 (7) |
Z | 8 |
Radiation type | Mo Kα |
µ (mm−1) | 0.09 |
Crystal size (mm) | 0.22 × 0.20 × 0.18 |
|
Data collection |
Diffractometer | Bruker SMART CCD |
Absorption correction | – |
No. of measured, independent and observed [I > 2σ(I)] reflections | 19439, 2449, 1147 |
Rint | 0.100 |
(sin θ/λ)max (Å−1) | 0.649 |
|
Refinement |
R[F2 > 2σ(F2)], wR(F2), S | 0.067, 0.206, 1.00 |
No. of reflections | 2449 |
No. of parameters | 127 |
H-atom treatment | H-atom parameters constrained |
Δρmax, Δρmin (e Å−3) | 0.20, −0.22 |
Hydrogen-bond geometry (Å, º) top D—H···A | D—H | H···A | D···A | D—H···A |
N1—H1A···O2i | 0.86 | 2.04 | 2.885 (3) | 168 |
Symmetry code: (i) −x+1/2, y+1/2, z. |
References
Bruker (1997). SMART and SAINT. Bruker AXS Inc., Madison, Wisconsin, USA. Google Scholar
Li, Y.-F. & Jian, F.-F. (2010). Acta Cryst. E66, o1399. Web of Science CSD CrossRef IUCr Journals Google Scholar
Li, Y.-F. & Meng, F.-Y. (2010). Acta Cryst. E66, o2685. Web of Science CSD CrossRef IUCr Journals Google Scholar
Sheldrick, G. M. (2008). Acta Cryst. A64, 112–122. Web of Science CrossRef CAS IUCr Journals Google Scholar
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