organic compounds
4,5,6,7-Tetrachloro-N-(2-fluorophenyl)phthalimide
aCollege of Life Sciences, China Jiliang University, Hangzhou 310018, People's Republic of China
*Correspondence e-mail: clshangzhou@yahoo.com.cn
In the title compound, C14H4Cl4FNO2, the benzene ring and the phthalimide plane are nearly planar, the maximum deviations being 0.005 (2) and 0.010 (2) Å, respectively, but the molecule as a whole is not planar: the dihedral angle between the two planar ring systems is 68.06 (10)°. A short Cl⋯O contact of 2.914 (2) Å exists in the crystal structure.
Related literature
The title compound is an intermediate in the synthesis of organic electroluminescent materials; see: Han & Kay (2005). For details of the synthesis, see: Valkonen et al. (2007); Barchin et al. (2002). For related structures, see: Xu et al. (2006); Fu et al. (2010a,b,c).
Experimental
Crystal data
|
Data collection: CrystalClear (Rigaku, 2005); cell CrystalClear; data reduction: CrystalClear; 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/S1600536810032575/bv2150sup1.cif
contains datablocks I, global. DOI:Structure factors: contains datablock I. DOI: https://doi.org/10.1107/S1600536810032575/bv2150Isup2.hkl
An acetic acid solution of 4,5,6,7-tetrachlorophthalic anhydride (28.6 g, 100 mmol) and 2-fluoroaniline (9.65 ml, 100 mmol) was refluxed overnight, and then filtered. The crude produce was recrystallized from ethyl acetate.
H atoms were positioned geometrically and refined as riding with C—H = 0.95 Å, and Uiso(H) = 1.2Ueq(C).
The title compound is a key intermediate in the synthesis of organic electro-luminescent materials. The emission of light by organic molecules exposed to an electric field has been wide investigated in both an academic and industrial context. (Han & Kay, 2005).
The molecular structure of the title compound is illustrated in Fig. 1. In the title compound, the two rings are nearly planar, the maximum deviations being 0.005 (2) and 0.010 (2) Å, respectively, but the molecule as a whole is not planar. The dihedral angle between the benzene ring and the phthalimide plane is 68.06 (10) °, which is greater than 59.95 (4) ° found in a related compound N-(2-fluorophenyl)phthalimide (Xu et al., 2006). A short Cl···O contact of 2.914 (2) Å exists in the crystal structure.
The title compound is a key intermediate in the synthesis of organic electroluminescent materials; see: Han & Kay (2005). For details of the synthesis, see: Valkonen et al. (2007); Barchin et al. (2002). For related structures, see: Xu et al. (2006); Fu et al. (2010a,b,c).
Data collection: CrystalClear (Rigaku, 2005); cell
CrystalClear (Rigaku, 2005); data reduction: CrystalClear (Rigaku, 2005); 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. View of the molecule of showing the atom-labelling scheme. Displacement ellipsoids are drawn at the 30% probability level. |
C14H4Cl4FNO2 | F(000) = 752 |
Mr = 378.98 | Dx = 1.798 Mg m−3 |
Monoclinic, P21/c | Mo Kα radiation, λ = 0.71073 Å |
Hall symbol: -P 2ybc | Cell parameters from 4679 reflections |
a = 12.032 (2) Å | θ = 2.3–27.9° |
b = 13.393 (3) Å | µ = 0.86 mm−1 |
c = 8.7244 (17) Å | T = 113 K |
β = 95.33 (3)° | Prism, colorless |
V = 1399.8 (5) Å3 | 0.22 × 0.20 × 0.16 mm |
Z = 4 |
Rigaku Saturn CCD area-detector diffractometer | 2462 independent reflections |
Radiation source: rotating anode | 2120 reflections with I > 2σ(I) |
Confocal monochromator | Rint = 0.027 |
Detector resolution: 7.31 pixels mm-1 | θmax = 25.0°, θmin = 2.3° |
ω and φ scans | h = −14→13 |
Absorption correction: multi-scan (CrystalClear; Rigaku, 2005) | k = −15→15 |
Tmin = 0.833, Tmax = 0.875 | l = −7→10 |
9870 measured reflections |
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)] = 0.032 | Hydrogen site location: inferred from neighbouring sites |
wR(F2) = 0.085 | H-atom parameters constrained |
S = 1.14 | w = 1/[σ2(Fo2) + (0.0567P)2] where P = (Fo2 + 2Fc2)/3 |
2462 reflections | (Δ/σ)max = 0.001 |
199 parameters | Δρmax = 0.55 e Å−3 |
0 restraints | Δρmin = −0.54 e Å−3 |
C14H4Cl4FNO2 | V = 1399.8 (5) Å3 |
Mr = 378.98 | Z = 4 |
Monoclinic, P21/c | Mo Kα radiation |
a = 12.032 (2) Å | µ = 0.86 mm−1 |
b = 13.393 (3) Å | T = 113 K |
c = 8.7244 (17) Å | 0.22 × 0.20 × 0.16 mm |
β = 95.33 (3)° |
Rigaku Saturn CCD area-detector diffractometer | 2462 independent reflections |
Absorption correction: multi-scan (CrystalClear; Rigaku, 2005) | 2120 reflections with I > 2σ(I) |
Tmin = 0.833, Tmax = 0.875 | Rint = 0.027 |
9870 measured reflections |
R[F2 > 2σ(F2)] = 0.032 | 0 restraints |
wR(F2) = 0.085 | H-atom parameters constrained |
S = 1.14 | Δρmax = 0.55 e Å−3 |
2462 reflections | Δρmin = −0.54 e Å−3 |
199 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 | ||
Cl1 | 0.86460 (4) | 0.88811 (4) | 0.87885 (5) | 0.02115 (15) | |
Cl2 | 1.12105 (4) | 0.89461 (4) | 0.84021 (6) | 0.02482 (16) | |
Cl3 | 1.20515 (4) | 0.87608 (4) | 0.51578 (6) | 0.02211 (16) | |
Cl4 | 1.03483 (4) | 0.86419 (3) | 0.22341 (5) | 0.01784 (15) | |
F1 | 0.59427 (10) | 1.01280 (10) | 0.21749 (17) | 0.0449 (4) | |
O1 | 0.64955 (11) | 0.87452 (10) | 0.64858 (16) | 0.0242 (4) | |
O2 | 0.77309 (11) | 0.84862 (10) | 0.17056 (15) | 0.0222 (3) | |
N1 | 0.68479 (12) | 0.85955 (12) | 0.39299 (18) | 0.0179 (4) | |
C1 | 0.71360 (15) | 0.86955 (14) | 0.5529 (2) | 0.0175 (4) | |
C2 | 0.83872 (15) | 0.87331 (13) | 0.5693 (2) | 0.0145 (4) | |
C3 | 0.91144 (15) | 0.88264 (13) | 0.6996 (2) | 0.0159 (4) | |
C4 | 1.02658 (15) | 0.88421 (13) | 0.6811 (2) | 0.0157 (4) | |
C5 | 1.06451 (15) | 0.87662 (12) | 0.5352 (2) | 0.0158 (4) | |
C6 | 0.98857 (15) | 0.86904 (13) | 0.4041 (2) | 0.0140 (4) | |
C7 | 0.87595 (15) | 0.86712 (13) | 0.4244 (2) | 0.0143 (4) | |
C8 | 0.77660 (15) | 0.85734 (14) | 0.3073 (2) | 0.0162 (4) | |
C9 | 0.57195 (15) | 0.85497 (15) | 0.3257 (2) | 0.0196 (4) | |
C10 | 0.50639 (15) | 0.77220 (16) | 0.3485 (2) | 0.0252 (5) | |
H10 | 0.5353 | 0.7180 | 0.4101 | 0.030* | |
C11 | 0.39733 (16) | 0.76994 (17) | 0.2793 (2) | 0.0315 (5) | |
H11 | 0.3512 | 0.7139 | 0.2947 | 0.038* | |
C12 | 0.35573 (17) | 0.84825 (18) | 0.1888 (3) | 0.0318 (5) | |
H12 | 0.2816 | 0.8452 | 0.1410 | 0.038* | |
C13 | 0.42123 (16) | 0.93161 (18) | 0.1668 (2) | 0.0313 (5) | |
H13 | 0.3926 | 0.9862 | 0.1057 | 0.038* | |
C14 | 0.52798 (15) | 0.93280 (16) | 0.2357 (2) | 0.0243 (5) |
U11 | U22 | U33 | U12 | U13 | U23 | |
Cl1 | 0.0284 (3) | 0.0246 (3) | 0.0108 (3) | −0.00137 (19) | 0.0036 (2) | −0.00012 (18) |
Cl2 | 0.0242 (3) | 0.0309 (3) | 0.0178 (3) | 0.0013 (2) | −0.0064 (2) | −0.0022 (2) |
Cl3 | 0.0141 (3) | 0.0256 (3) | 0.0263 (3) | 0.00246 (18) | 0.0001 (2) | −0.00010 (19) |
Cl4 | 0.0185 (3) | 0.0213 (3) | 0.0145 (2) | −0.00069 (17) | 0.00566 (19) | −0.00100 (18) |
F1 | 0.0410 (7) | 0.0357 (8) | 0.0559 (9) | −0.0095 (6) | −0.0078 (6) | 0.0140 (7) |
O1 | 0.0213 (7) | 0.0350 (9) | 0.0178 (7) | −0.0025 (6) | 0.0088 (6) | −0.0029 (6) |
O2 | 0.0208 (7) | 0.0331 (8) | 0.0127 (7) | −0.0050 (6) | 0.0025 (5) | −0.0015 (6) |
N1 | 0.0134 (8) | 0.0252 (10) | 0.0156 (8) | −0.0030 (6) | 0.0037 (7) | −0.0021 (7) |
C1 | 0.0196 (10) | 0.0162 (11) | 0.0166 (10) | −0.0009 (7) | 0.0017 (8) | 0.0000 (7) |
C2 | 0.0181 (9) | 0.0104 (10) | 0.0155 (10) | −0.0004 (7) | 0.0035 (8) | 0.0016 (7) |
C3 | 0.0235 (10) | 0.0125 (10) | 0.0119 (10) | 0.0000 (7) | 0.0032 (8) | −0.0001 (7) |
C4 | 0.0198 (10) | 0.0105 (10) | 0.0157 (10) | −0.0005 (7) | −0.0044 (8) | 0.0001 (7) |
C5 | 0.0156 (9) | 0.0106 (10) | 0.0211 (11) | 0.0014 (7) | 0.0007 (8) | −0.0001 (7) |
C6 | 0.0187 (9) | 0.0107 (10) | 0.0132 (9) | 0.0001 (7) | 0.0044 (8) | 0.0012 (7) |
C7 | 0.0174 (9) | 0.0122 (10) | 0.0129 (9) | −0.0015 (7) | 0.0002 (7) | 0.0000 (7) |
C8 | 0.0166 (9) | 0.0144 (10) | 0.0176 (10) | −0.0026 (7) | 0.0009 (8) | −0.0002 (8) |
C9 | 0.0142 (9) | 0.0269 (12) | 0.0180 (10) | −0.0014 (8) | 0.0030 (8) | −0.0057 (8) |
C10 | 0.0208 (10) | 0.0286 (13) | 0.0270 (11) | −0.0041 (8) | 0.0056 (8) | −0.0016 (9) |
C11 | 0.0187 (10) | 0.0390 (14) | 0.0375 (13) | −0.0123 (9) | 0.0064 (9) | −0.0100 (10) |
C12 | 0.0149 (10) | 0.0509 (16) | 0.0295 (13) | −0.0006 (10) | 0.0008 (9) | −0.0137 (11) |
C13 | 0.0244 (11) | 0.0406 (14) | 0.0282 (12) | 0.0073 (10) | −0.0012 (9) | −0.0020 (10) |
C14 | 0.0231 (10) | 0.0253 (12) | 0.0243 (11) | −0.0040 (8) | 0.0011 (8) | −0.0012 (9) |
Cl1—C3 | 1.7122 (19) | C4—C5 | 1.396 (3) |
Cl2—C4 | 1.7159 (19) | C5—C6 | 1.400 (3) |
Cl3—C5 | 1.7162 (18) | C6—C7 | 1.383 (3) |
Cl4—C6 | 1.7213 (19) | C7—C8 | 1.505 (3) |
F1—C14 | 1.354 (2) | C9—C14 | 1.380 (3) |
O1—C1 | 1.189 (2) | C9—C10 | 1.385 (3) |
O2—C8 | 1.195 (2) | C10—C11 | 1.393 (3) |
N1—C8 | 1.391 (2) | C10—H10 | 0.9500 |
N1—C1 | 1.412 (2) | C11—C12 | 1.379 (3) |
N1—C9 | 1.430 (2) | C11—H11 | 0.9500 |
C1—C2 | 1.500 (3) | C12—C13 | 1.390 (3) |
C2—C3 | 1.374 (3) | C12—H12 | 0.9500 |
C2—C7 | 1.382 (3) | C13—C14 | 1.367 (3) |
C3—C4 | 1.410 (3) | C13—H13 | 0.9500 |
C8—N1—C1 | 113.51 (15) | C6—C7—C8 | 129.85 (18) |
C8—N1—C9 | 123.34 (16) | O2—C8—N1 | 125.63 (17) |
C1—N1—C9 | 123.13 (16) | O2—C8—C7 | 129.69 (17) |
O1—C1—N1 | 125.66 (17) | N1—C8—C7 | 104.68 (16) |
O1—C1—C2 | 129.89 (18) | C14—C9—C10 | 119.51 (18) |
N1—C1—C2 | 104.45 (16) | C14—C9—N1 | 120.02 (17) |
C3—C2—C7 | 121.77 (18) | C10—C9—N1 | 120.46 (18) |
C3—C2—C1 | 129.66 (18) | C9—C10—C11 | 118.8 (2) |
C7—C2—C1 | 108.56 (16) | C9—C10—H10 | 120.6 |
C2—C3—C4 | 117.62 (18) | C11—C10—H10 | 120.6 |
C2—C3—Cl1 | 121.41 (15) | C12—C11—C10 | 120.6 (2) |
C4—C3—Cl1 | 120.94 (15) | C12—C11—H11 | 119.7 |
C5—C4—C3 | 120.75 (17) | C10—C11—H11 | 119.7 |
C5—C4—Cl2 | 119.71 (14) | C11—C12—C13 | 120.64 (19) |
C3—C4—Cl2 | 119.54 (15) | C11—C12—H12 | 119.7 |
C4—C5—C6 | 120.45 (17) | C13—C12—H12 | 119.7 |
C4—C5—Cl3 | 119.95 (15) | C14—C13—C12 | 118.1 (2) |
C6—C5—Cl3 | 119.60 (15) | C14—C13—H13 | 121.0 |
C7—C6—C5 | 118.03 (18) | C12—C13—H13 | 121.0 |
C7—C6—Cl4 | 121.36 (15) | F1—C14—C13 | 119.8 (2) |
C5—C6—Cl4 | 120.61 (14) | F1—C14—C9 | 117.75 (16) |
C2—C7—C6 | 121.36 (17) | C13—C14—C9 | 122.4 (2) |
C2—C7—C8 | 108.79 (16) | ||
C8—N1—C1—O1 | 178.91 (18) | C5—C6—C7—C2 | 0.5 (3) |
C9—N1—C1—O1 | 0.6 (3) | Cl4—C6—C7—C2 | −178.51 (13) |
C8—N1—C1—C2 | −0.4 (2) | C5—C6—C7—C8 | −178.53 (17) |
C9—N1—C1—C2 | −178.80 (16) | Cl4—C6—C7—C8 | 2.4 (3) |
O1—C1—C2—C3 | 0.6 (3) | C1—N1—C8—O2 | 179.37 (17) |
N1—C1—C2—C3 | 179.94 (17) | C9—N1—C8—O2 | −2.3 (3) |
O1—C1—C2—C7 | −178.47 (19) | C1—N1—C8—C7 | −0.1 (2) |
N1—C1—C2—C7 | 0.85 (19) | C9—N1—C8—C7 | 178.26 (16) |
C7—C2—C3—C4 | −0.9 (3) | C2—C7—C8—O2 | −178.79 (19) |
C1—C2—C3—C4 | −179.94 (17) | C6—C7—C8—O2 | 0.4 (3) |
C7—C2—C3—Cl1 | −178.88 (14) | C2—C7—C8—N1 | 0.6 (2) |
C1—C2—C3—Cl1 | 2.1 (3) | C6—C7—C8—N1 | 179.79 (18) |
C2—C3—C4—C5 | 0.1 (3) | C8—N1—C9—C14 | −67.0 (3) |
Cl1—C3—C4—C5 | 178.00 (13) | C1—N1—C9—C14 | 111.2 (2) |
C2—C3—C4—Cl2 | −179.43 (13) | C8—N1—C9—C10 | 112.3 (2) |
Cl1—C3—C4—Cl2 | −1.5 (2) | C1—N1—C9—C10 | −69.5 (2) |
C3—C4—C5—C6 | 1.1 (3) | C14—C9—C10—C11 | 0.1 (3) |
Cl2—C4—C5—C6 | −179.40 (13) | N1—C9—C10—C11 | −179.17 (18) |
C3—C4—C5—Cl3 | −178.64 (13) | C9—C10—C11—C12 | 0.6 (3) |
Cl2—C4—C5—Cl3 | 0.9 (2) | C10—C11—C12—C13 | −1.0 (3) |
C4—C5—C6—C7 | −1.4 (3) | C11—C12—C13—C14 | 0.9 (3) |
Cl3—C5—C6—C7 | 178.36 (13) | C12—C13—C14—F1 | −179.79 (18) |
C4—C5—C6—Cl4 | 177.65 (13) | C12—C13—C14—C9 | −0.2 (3) |
Cl3—C5—C6—Cl4 | −2.6 (2) | C10—C9—C14—F1 | 179.34 (18) |
C3—C2—C7—C6 | 0.7 (3) | N1—C9—C14—F1 | −1.4 (3) |
C1—C2—C7—C6 | 179.84 (16) | C10—C9—C14—C13 | −0.2 (3) |
C3—C2—C7—C8 | 179.90 (16) | N1—C9—C14—C13 | 179.00 (19) |
C1—C2—C7—C8 | −0.92 (19) |
Experimental details
Crystal data | |
Chemical formula | C14H4Cl4FNO2 |
Mr | 378.98 |
Crystal system, space group | Monoclinic, P21/c |
Temperature (K) | 113 |
a, b, c (Å) | 12.032 (2), 13.393 (3), 8.7244 (17) |
β (°) | 95.33 (3) |
V (Å3) | 1399.8 (5) |
Z | 4 |
Radiation type | Mo Kα |
µ (mm−1) | 0.86 |
Crystal size (mm) | 0.22 × 0.20 × 0.16 |
Data collection | |
Diffractometer | Rigaku Saturn CCD area-detector |
Absorption correction | Multi-scan (CrystalClear; Rigaku, 2005) |
Tmin, Tmax | 0.833, 0.875 |
No. of measured, independent and observed [I > 2σ(I)] reflections | 9870, 2462, 2120 |
Rint | 0.027 |
(sin θ/λ)max (Å−1) | 0.595 |
Refinement | |
R[F2 > 2σ(F2)], wR(F2), S | 0.032, 0.085, 1.14 |
No. of reflections | 2462 |
No. of parameters | 199 |
H-atom treatment | H-atom parameters constrained |
Δρmax, Δρmin (e Å−3) | 0.55, −0.54 |
Computer programs: CrystalClear (Rigaku, 2005), SHELXS97 (Sheldrick, 2008), SHELXL97 (Sheldrick, 2008), SHELXTL (Sheldrick, 2008).
Acknowledgements
This work was supported by the Major Research Program of Zhejiang Province (grant No. 2008 C02007-2) and the Zhejiang Provincial Natural Science Foundation of China (grant No. Y307128).
References
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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.
The title compound is a key intermediate in the synthesis of organic electro-luminescent materials. The emission of light by organic molecules exposed to an electric field has been wide investigated in both an academic and industrial context. (Han & Kay, 2005).
The molecular structure of the title compound is illustrated in Fig. 1. In the title compound, the two rings are nearly planar, the maximum deviations being 0.005 (2) and 0.010 (2) Å, respectively, but the molecule as a whole is not planar. The dihedral angle between the benzene ring and the phthalimide plane is 68.06 (10) °, which is greater than 59.95 (4) ° found in a related compound N-(2-fluorophenyl)phthalimide (Xu et al., 2006). A short Cl···O contact of 2.914 (2) Å exists in the crystal structure.