Literature DB >> 21581033

(E)-1-(4-Amino-phen-yl)ethanone oxime.

Muhammad Rafiq, Muhammad Hanif, Ghulam Qadeer, Sauli Vuoti, Juho Autio.   

Abstract

In the mol-ecule of the title compound, C(8)H(10)N(2)O, the oxime group is oriented at a dihedral angle of 5.58 (3)° with respect to the benzene ring. In the crystal structure, inter-molecular O-H⋯N and N-H⋯O hydrogen bonds link the mol-ecules, forming a three-dimensional network.

Entities:  

Year:  2008        PMID: 21581033      PMCID: PMC2959509          DOI: 10.1107/S1600536808034120

Source DB:  PubMed          Journal:  Acta Crystallogr Sect E Struct Rep Online        ISSN: 1600-5368


Related literature

For general background, see: Bertolasi et al. (1982 ▶); Degorre et al. (1998 ▶). For bond-length data, see: Allen et al. (1987 ▶).

Experimental

Crystal data

C8H10N2O M = 150.18 Monoclinic, a = 4.8641 (2) Å b = 9.2016 (3) Å c = 17.1447 (7) Å β = 95.535 (2)° V = 763.78 (5) Å3 Z = 4 Mo Kα radiation μ = 0.09 mm−1 T = 100 (2) K 0.34 × 0.28 × 0.26 mm

Data collection

Enraf–Nonius KappaCCD diffractometer Absorption correction: multi-scan (DENZO; Otwinowski & Minor, 1997 ▶) T min = 0.972, T max = 0.979 6132 measured reflections 1761 independent reflections 1483 reflections with I > 2σ(I) R int = 0.026

Refinement

R[F 2 > 2σ(F 2)] = 0.040 wR(F 2) = 0.107 S = 1.04 1761 reflections 113 parameters H atoms treated by a mixture of independent and constrained refinement Δρmax = 0.24 e Å−3 Δρmin = −0.28 e Å−3 Data collection: COLLECT (Hooft, 1998 ▶); cell refinement: DENZO (Otwinowski & Minor, 1997 ▶) and COLLECT; data reduction: DENZO and COLLECT; program(s) used to solve structure: SIR2004 (Burla et al., 2005 ▶); program(s) used to refine structure: SHELXL97 (Sheldrick, 2008 ▶); molecular graphics: DIAMOND (Brandenburg, 2007 ▶) and PLATON (Spek, 2003 ▶); software used to prepare material for publication: SHELXL97. Crystal structure: contains datablocks I, global. DOI: 10.1107/S1600536808034120/hk2552sup1.cif Structure factors: contains datablocks I. DOI: 10.1107/S1600536808034120/hk2552Isup2.hkl Additional supplementary materials: crystallographic information; 3D view; checkCIF report
C8H10N2OF(000) = 320
Mr = 150.18Dx = 1.306 Mg m3
Monoclinic, P21/nMelting point: 401(1) K
Hall symbol: -P 2ynMo Kα radiation, λ = 0.71073 Å
a = 4.8641 (2) ÅCell parameters from 3781 reflections
b = 9.2016 (3) Åθ = 1.0–30.0°
c = 17.1447 (7) ŵ = 0.09 mm1
β = 95.535 (2)°T = 100 K
V = 763.78 (5) Å3Block, pale yellow
Z = 40.34 × 0.28 × 0.26 mm
Enraf–Nonius KappaCCD diffractometer1761 independent reflections
Radiation source: fine-focus sealed tube1483 reflections with I > 2σ(I)
horizontally mounted graphite crystalRint = 0.026
Detector resolution: 9 pixels mm-1θmax = 27.5°, θmin = 4.2°
φ and ω scansh = −6→6
Absorption correction: multi-scan (DENZO; Otwinowski & Minor, 1997)k = −11→11
Tmin = 0.972, Tmax = 0.979l = −22→22
6132 measured reflections
Refinement on F2Primary atom site location: structure-invariant direct methods
Least-squares matrix: fullSecondary atom site location: difference Fourier map
R[F2 > 2σ(F2)] = 0.040Hydrogen site location: mixed
wR(F2) = 0.108H atoms treated by a mixture of independent and constrained refinement
S = 1.04w = 1/[σ2(Fo2) + (0.0554P)2 + 0.2855P] where P = (Fo2 + 2Fc2)/3
1761 reflections(Δ/σ)max < 0.001
113 parametersΔρmax = 0.24 e Å3
0 restraintsΔρmin = −0.28 e Å3
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.
xyzUiso*/Ueq
O10.42570 (18)0.21270 (10)0.47528 (5)0.0203 (2)
H1O0.273 (4)0.158 (2)0.4589 (11)0.049 (5)*
N10.38949 (19)0.23108 (10)0.55574 (5)0.0168 (2)
N20.4407 (2)0.42572 (11)0.91465 (6)0.0186 (2)
H2N0.288 (4)0.3807 (18)0.9308 (10)0.035 (4)*
H2M0.440 (4)0.525 (2)0.9257 (10)0.039 (4)*
C10.5281 (2)0.34967 (12)0.67458 (6)0.0147 (2)
C20.3462 (2)0.26638 (12)0.71490 (7)0.0179 (3)
H20.24210.19140.68780.021*
C30.3148 (2)0.29074 (13)0.79324 (7)0.0177 (3)
H30.19030.23270.81920.021*
C40.4655 (2)0.40050 (12)0.83408 (6)0.0156 (2)
C50.6512 (2)0.48187 (13)0.79535 (7)0.0187 (3)
H50.75880.55500.82300.022*
C60.6810 (2)0.45726 (13)0.71660 (7)0.0178 (3)
H60.80750.51460.69100.021*
C70.5571 (2)0.32441 (12)0.59009 (6)0.0149 (2)
C80.7713 (2)0.40782 (13)0.55104 (7)0.0195 (3)
H8A0.76060.38150.49540.029*
H8B0.95530.38410.57620.029*
H8C0.73770.51230.55600.029*
U11U22U33U12U13U23
O10.0222 (5)0.0272 (5)0.0121 (4)−0.0020 (4)0.0043 (3)−0.0033 (3)
N10.0190 (5)0.0200 (5)0.0118 (5)0.0020 (4)0.0038 (4)−0.0010 (4)
N20.0230 (5)0.0190 (5)0.0141 (5)0.0005 (4)0.0032 (4)−0.0012 (4)
C10.0144 (5)0.0144 (5)0.0156 (5)0.0029 (4)0.0024 (4)0.0005 (4)
C20.0191 (6)0.0168 (5)0.0178 (5)−0.0026 (4)0.0018 (4)−0.0015 (4)
C30.0172 (5)0.0182 (6)0.0181 (6)−0.0017 (4)0.0042 (4)0.0018 (4)
C40.0168 (5)0.0160 (5)0.0138 (5)0.0042 (4)0.0012 (4)0.0003 (4)
C50.0200 (6)0.0173 (6)0.0187 (6)−0.0025 (4)0.0017 (4)−0.0036 (4)
C60.0179 (5)0.0176 (5)0.0185 (6)−0.0017 (4)0.0041 (4)0.0006 (4)
C70.0139 (5)0.0158 (5)0.0153 (5)0.0039 (4)0.0027 (4)0.0019 (4)
C80.0177 (5)0.0231 (6)0.0182 (5)−0.0019 (4)0.0045 (4)0.0010 (4)
O1—N11.4175 (11)C3—C41.3961 (16)
O1—H1O0.92 (2)C3—H30.9500
N1—C71.2869 (15)C4—C51.3905 (16)
N2—C41.4173 (14)C5—C61.3903 (15)
N2—H2N0.916 (18)C5—H50.9500
N2—H2M0.929 (19)C6—H60.9500
C1—C61.3961 (16)C7—C81.5026 (15)
C1—C21.4020 (16)C8—H8A0.9800
C1—C71.4872 (14)C8—H8B0.9800
C2—C31.3846 (15)C8—H8C0.9800
C2—H20.9500
N1—O1—H1O100.9 (11)C3—C4—N2121.15 (10)
C7—N1—O1113.10 (9)C6—C5—C4120.63 (10)
C4—N2—H2N111.6 (10)C6—C5—H5119.7
C4—N2—H2M111.1 (11)C4—C5—H5119.7
H2N—N2—H2M111.2 (15)C5—C6—C1121.09 (10)
C6—C1—C2117.60 (10)C5—C6—H6119.5
C6—C1—C7121.17 (10)C1—C6—H6119.5
C2—C1—C7121.23 (10)N1—C7—C1115.76 (9)
C3—C2—C1121.59 (11)N1—C7—C8124.95 (10)
C3—C2—H2119.2C1—C7—C8119.29 (10)
C1—C2—H2119.2C7—C8—H8A109.5
C2—C3—C4120.12 (10)C7—C8—H8B109.5
C2—C3—H3119.9H8A—C8—H8B109.5
C4—C3—H3119.9C7—C8—H8C109.5
C5—C4—C3118.94 (10)H8A—C8—H8C109.5
C5—C4—N2119.85 (10)H8B—C8—H8C109.5
D—H···AD—HH···AD···AD—H···A
O1—H1O···N2i0.92 (2)1.88 (2)2.7919 (14)169.8 (18)
N2—H2N···O1ii0.916 (18)2.165 (18)3.0790 (13)175.7 (15)
N2—H2M···N1iii0.929 (19)2.525 (19)3.3000 (14)141.0 (14)
Table 1

Hydrogen-bond geometry (Å, °)

D—H⋯AD—HH⋯ADAD—H⋯A
O1—H1O⋯N2i0.92 (2)1.88 (2)2.7919 (14)169.8 (18)
N2—H2N⋯O1ii0.916 (18)2.165 (18)3.0790 (13)175.7 (15)
N2—H2M⋯N1iii0.929 (19)2.525 (19)3.3000 (14)141.0 (14)

Symmetry codes: (i) ; (ii) ; (iii) .

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