organic compounds
N2,N2,N6,N6-Tetrakis(2,3,4,5,6-pentafluorobenzoyl)pyridine-2,6-diamine
aUniversity of Jyväskylä, Department of Chemistry, PO Box 35, FIN-40014 Jyväskylä, Finland, and bUniversity of Technology and Life Sciences, Department of Chemistry, Seminaryjna 3, PL-85-326 Bydgoszcz, Poland
*Correspondence e-mail: arto.m.valkonen@jyu.fi
The title compound, C33H3F20N3O4, is a highly fluorinated organic imide that was isolated as an unexpected product from the reaction of 2,6-diaminopyridine with 2,3,4,5,6-pentafluorobenzoyl chloride in a 1:2 molar ratio. The molecule is located on a twofold axis and one of its symmetry-independent 2,3,4,5,6-pentafluorobenzoyl groups is disordered over two sets of sites, the occupancy of the major component being 0.773 (3). In the major component, the dihedral angle between the perfluorophenyl groups is 63.64 (10)°, and these groups form dihedral angles of 67.14 (7) and 21.1 (2)° with the pyridine core. Short intermolecular C—H⋯O and C—H⋯N contacts are found in the crystal structure.
Related literature
For preparation of 2-acylaminopyridines and their structures, see: Ośmiałowski et al. (2010a,b). For related structures, see: Kovalevsky et al. (1999).
Experimental
Crystal data
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Data collection
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Refinement
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Data collection: COLLECT (Bruker, 2008); cell DENZO-SMN (Otwinowski & Minor, 1997); data reduction: DENZO-SMN; program(s) used to solve structure: SIR2004 (Burla et al., 2005); program(s) used to refine structure: SHELXL97 (Sheldrick, 2008); molecular graphics: ORTEP-3 (Farrugia, 1997) and Mercury (Macrae et al., 2008); software used to prepare material for publication: SHELXL97.
Supporting information
https://doi.org/10.1107/S1600536811048768/gk2434sup1.cif
contains datablocks global, I. DOI:Structure factors: contains datablock I. DOI: https://doi.org/10.1107/S1600536811048768/gk2434Isup2.hkl
Supporting information file. DOI: https://doi.org/10.1107/S1600536811048768/gk2434Isup3.cml
2,3,4,5,6-Pentafluorobenzoyl chloride (2.28 g, 10 mmol) was added dropwise to a magnetically stirred solution of 2,6-diaminopyridine (0.54 g, 5 mmol) and triethylamine (1 ml) in dry methylene chloride (6 ml) at 0 °C. Subsequently the reaction mixture was refluxed for 4 h and the solution was treated with water and extracted with CH2Cl2. The organic solvent of the extract was evaporated under reduced pressure and the product recrystallized from hexane/ethyl acetate (10:1) mixture. 1H NMR (CDCl3): δ (p.p.m.) = 8.00 (t, 1H, H4), 7.45 (d, 2H, H3). Single crystals suitable for X-ray diffraction were obtained by very slow evaporation of analytical sample from NMR-tube, where CDCl3 was used as a solvent.
All H atoms were visible in electron density maps, but were calculated at their idealized positions and allowed to ride on their parent atoms at C—H distances of 0.95 Å with Uiso(H) of 1.2 times Ueq(C). A large number of restraints was needed to rationalize the disorder in perfluorobenzoyl group. FLAT (2 restraints, s=0.1) was applied to amide groups of both components to make them more planar. SADI (3 restraints, s=0.02) was applied for amide groups of both components to equalize the bond distances. DELU (2 restraints, s1=s2=0.01) was applied for one C—C and one C—F bond of the major component to equalize the anisotropic displacement parameters. SIMU (84 restraints, s=0.01, st=0.02, dmax=1.7) was applied to carbons of the disordered perfluorophenyl ring and carbonyl group of both components to equalize the anisotropic displacement parameters. ISOR (6 restraints, s=0.01, st=0.02) was applied to carbonyl oxygen atom of the minor component to prevent the atom to appear as non-positive definite.
The title compound was accidentally obtained by reaction of 2,6-diaminopyridine with two equivalents of 2,3,4,5,6-pentafluorobenzoyl chloride, while the preparation of N,N'-bis(pentafluorobenzoyl)-2,6-diaminopyridine was attempted. The reaction was carried out analogously to our previously reported preparations of 2-acylaminopyridines (Ośmiałowski et al., 2010a). Previously we have structurally characterized two related secondary
(Ośmiałowski et al., 2010b). This title imide has not been previously reported in the literature. The of closely related imide, N,N'-(pyridine-2,6-diyl)-bis(naphthalenedicarboximide), has been reported (Kovalevsky et al., 1999).In the crystal molecules are located on a twofold rotation axis and one of the symmetry independent perfluorobenzoyl group is disordered over two sets of sites with different occupancies (Fig.1). The perfluorophenyl groups are twisted out of the pyridine core by 67.14 (7) and 21.1 (2) ° in the major component whereas in the minor component these angles are 67.14 (7) and 63.4 (4)°. Furthermore, the dihedral angle between perfluorophenyl - group planes is 63.64 (10) ° [the minor component 67.9 (4) °]. Mercury (Macrae et al., 2008) helped us to find a motif along [0-10] direction (Fig. 2), where the molecule is connected to the translation related one by two C—H···O contacts (Table 1). Between these molecules there is also one rather long but linear C—H···N contact. A few F···CAr, F···F and F···O type contacts were found, which are only slightly shorter than the sum of van der Waals radii.
For preparation of 2-acylaminopyridines and their structures, see: Ośmiałowski et al. (2010a,b). For related structures, see: Kovalevsky et al. (1999).
Data collection: COLLECT (Bruker, 2008); cell
DENZO-SMN (Otwinowski & Minor, 1997); data reduction: DENZO-SMN (Otwinowski & Minor, 1997); program(s) used to solve structure: SIR2004 (Burla et al., 2005); program(s) used to refine structure: SHELXL97 (Sheldrick, 2008); molecular graphics: ORTEP-3 (Farrugia, 1997) and Mercury (Macrae et al., 2008); software used to prepare material for publication: SHELXL97 (Sheldrick, 2008).C33H3F20N3O4 | F(000) = 1736 |
Mr = 885.38 | Dx = 1.907 Mg m−3 |
Monoclinic, C2/c | Mo Kα radiation, λ = 0.71073 Å |
Hall symbol: -C 2yc | Cell parameters from 4030 reflections |
a = 21.2370 (5) Å | θ = 0.4–28.3° |
b = 6.3940 (1) Å | µ = 0.21 mm−1 |
c = 23.1045 (5) Å | T = 123 K |
β = 100.585 (1)° | Block, colourless |
V = 3083.96 (11) Å3 | 0.30 × 0.18 × 0.16 mm |
Z = 4 |
Bruker–Nonius KappaCCD with an APEXII detector diffractometer | 2526 reflections with I > 2σ(I) |
Radiation source: fine-focus sealed tube | Rint = 0.039 |
Graphite monochromator | θmax = 28.2°, θmin = 1.8° |
Detector resolution: 9 pixels mm-1 | h = −27→28 |
φ and ω scans | k = −8→8 |
7138 measured reflections | l = −30→30 |
3785 independent 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)] = 0.057 | Hydrogen site location: inferred from neighbouring sites |
wR(F2) = 0.133 | H-atom parameters constrained |
S = 1.05 | w = 1/[σ2(Fo2) + (0.0381P)2 + 7.2159P] where P = (Fo2 + 2Fc2)/3 |
3785 reflections | (Δ/σ)max < 0.001 |
366 parameters | Δρmax = 0.35 e Å−3 |
97 restraints | Δρmin = −0.42 e Å−3 |
C33H3F20N3O4 | V = 3083.96 (11) Å3 |
Mr = 885.38 | Z = 4 |
Monoclinic, C2/c | Mo Kα radiation |
a = 21.2370 (5) Å | µ = 0.21 mm−1 |
b = 6.3940 (1) Å | T = 123 K |
c = 23.1045 (5) Å | 0.30 × 0.18 × 0.16 mm |
β = 100.585 (1)° |
Bruker–Nonius KappaCCD with an APEXII detector diffractometer | 2526 reflections with I > 2σ(I) |
7138 measured reflections | Rint = 0.039 |
3785 independent reflections |
R[F2 > 2σ(F2)] = 0.057 | 97 restraints |
wR(F2) = 0.133 | H-atom parameters constrained |
S = 1.05 | Δρmax = 0.35 e Å−3 |
3785 reflections | Δρmin = −0.42 e Å−3 |
366 parameters |
Experimental. 13C NMR (CDCl3): δ (ppm) = 159.4, 149.1, 144.5, 142.4, 141.7, 138.7, 136.6, 123.8, 110.5. |
Geometry. All s.u.'s (except the s.u. in the dihedral angle between two l.s. planes) are estimated using the full covariance matrix. The cell s.u.'s are taken into account individually in the estimation of s.u.'s in distances, angles and torsion angles; correlations between s.u.'s in cell parameters are only used when they are defined by crystal symmetry. An approximate (isotropic) treatment of cell s.u.'s is used for estimating s.u.'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 > 2σ(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 | Occ. (<1) | |
F1 | 0.86727 (7) | 0.9378 (2) | 0.69841 (7) | 0.0376 (4) | |
F2 | 0.78577 (10) | 0.8370 (3) | 0.59909 (7) | 0.0616 (5) | |
F3 | 0.72661 (9) | 0.4583 (3) | 0.58930 (7) | 0.0579 (5) | |
F4 | 0.75118 (6) | 0.1782 (2) | 0.67885 (7) | 0.0362 (4) | |
F5 | 0.82680 (7) | 0.2875 (2) | 0.78079 (6) | 0.0345 (4) | |
O1 | 0.87489 (9) | 0.8475 (3) | 0.82339 (8) | 0.0380 (4) | |
N7 | 0.93905 (9) | 0.5589 (3) | 0.82488 (9) | 0.0330 (5) | |
N1 | 1.0000 | 0.5463 (4) | 0.7500 | 0.0278 (6) | |
C2 | 0.97130 (10) | 0.4368 (4) | 0.78664 (11) | 0.0303 (5) | |
C3 | 0.97017 (12) | 0.2207 (4) | 0.78901 (14) | 0.0392 (7) | |
H3 | 0.9496 | 0.1495 | 0.8165 | 0.047* | |
C4 | 1.0000 | 0.1126 (6) | 0.7500 | 0.0450 (11) | |
H4 | 1.0000 | −0.0360 | 0.7500 | 0.054* | |
C8 | 0.88798 (11) | 0.6875 (4) | 0.80002 (11) | 0.0295 (5) | |
C9 | 0.84960 (10) | 0.6158 (4) | 0.74248 (10) | 0.0253 (5) | |
C10 | 0.83779 (11) | 0.7515 (4) | 0.69504 (11) | 0.0293 (5) | |
C11 | 0.79688 (13) | 0.6999 (4) | 0.64361 (11) | 0.0373 (6) | |
C12 | 0.76727 (13) | 0.5075 (4) | 0.63878 (11) | 0.0368 (6) | |
C13 | 0.77919 (11) | 0.3668 (4) | 0.68450 (11) | 0.0294 (5) | |
C14 | 0.81941 (10) | 0.4222 (4) | 0.73576 (10) | 0.0257 (5) | |
O2 | 1.02137 (19) | 0.5421 (8) | 0.9007 (2) | 0.0851 (16) | 0.773 (2) |
C15 | 0.9663 (3) | 0.5901 (8) | 0.8850 (2) | 0.0484 (16) | 0.773 (2) |
F6 | 0.96821 (11) | 0.9929 (4) | 0.93716 (10) | 0.0545 (6) | 0.773 (2) |
F7 | 0.90327 (13) | 1.0815 (4) | 1.02541 (11) | 0.0641 (8) | 0.773 (2) |
F8 | 0.82644 (14) | 0.7899 (4) | 1.06022 (10) | 0.0548 (7) | 0.773 (2) |
F9 | 0.81043 (14) | 0.4137 (4) | 1.00624 (12) | 0.0565 (7) | 0.773 (2) |
F10 | 0.87435 (13) | 0.3237 (4) | 0.91753 (12) | 0.0533 (7) | 0.773 (2) |
C16 | 0.92394 (13) | 0.6546 (4) | 0.92708 (10) | 0.0413 (10) | 0.773 (2) |
C17 | 0.93101 (11) | 0.8490 (4) | 0.95442 (11) | 0.0429 (9) | 0.773 (2) |
C18 | 0.89756 (12) | 0.8949 (3) | 0.99922 (10) | 0.0451 (9) | 0.773 (2) |
C19 | 0.85705 (12) | 0.7464 (4) | 1.01668 (10) | 0.0432 (9) | 0.773 (2) |
C20 | 0.84999 (14) | 0.5520 (4) | 0.98934 (13) | 0.0407 (11) | 0.773 (2) |
C21 | 0.88343 (15) | 0.5061 (3) | 0.94454 (13) | 0.0381 (12) | 0.773 (2) |
O2B | 1.0322 (5) | 0.4514 (16) | 0.8935 (5) | 0.041 (3) | 0.227 (2) |
C15B | 0.9785 (6) | 0.524 (2) | 0.8821 (5) | 0.027 (4) | 0.227 (2) |
F6B | 1.0454 (3) | 0.7631 (12) | 0.9763 (3) | 0.048 (2) | 0.227 (2) |
F7B | 0.9953 (4) | 0.8597 (13) | 1.0711 (3) | 0.060 (2) | 0.227 (2) |
F8B | 0.8734 (5) | 0.7549 (14) | 1.0761 (3) | 0.059 (2) | 0.227 (2) |
F9B | 0.8023 (5) | 0.5329 (19) | 0.9872 (4) | 0.058 (3) | 0.227 (2) |
F10B | 0.8522 (4) | 0.4215 (13) | 0.8935 (3) | 0.0397 (18) | 0.227 (2) |
C16B | 0.9465 (4) | 0.6015 (14) | 0.9305 (3) | 0.029 (3) | 0.227 (2) |
C17B | 0.9844 (3) | 0.7046 (14) | 0.9773 (3) | 0.040 (2) | 0.227 (2) |
C18B | 0.9591 (4) | 0.7582 (14) | 1.0267 (3) | 0.043 (3) | 0.227 (2) |
C19B | 0.8959 (4) | 0.7086 (15) | 1.0293 (3) | 0.042 (3) | 0.227 (2) |
C20B | 0.8581 (3) | 0.6055 (17) | 0.9825 (4) | 0.034 (3) | 0.227 (2) |
C21B | 0.8833 (4) | 0.5519 (16) | 0.9331 (4) | 0.025 (3) | 0.227 (2) |
U11 | U22 | U33 | U12 | U13 | U23 | |
F1 | 0.0398 (8) | 0.0247 (7) | 0.0498 (9) | −0.0086 (6) | 0.0121 (7) | 0.0033 (7) |
F2 | 0.0912 (14) | 0.0489 (11) | 0.0402 (9) | −0.0188 (10) | 0.0006 (9) | 0.0136 (8) |
F3 | 0.0692 (12) | 0.0568 (12) | 0.0403 (9) | −0.0210 (10) | −0.0093 (8) | −0.0015 (9) |
F4 | 0.0296 (7) | 0.0285 (8) | 0.0512 (9) | −0.0101 (6) | 0.0095 (6) | −0.0078 (7) |
F5 | 0.0346 (7) | 0.0277 (8) | 0.0409 (8) | −0.0072 (6) | 0.0062 (6) | 0.0061 (6) |
O1 | 0.0464 (11) | 0.0271 (9) | 0.0434 (10) | −0.0083 (8) | 0.0159 (8) | −0.0102 (8) |
N7 | 0.0269 (10) | 0.0343 (12) | 0.0373 (11) | −0.0054 (9) | 0.0049 (9) | −0.0024 (10) |
N1 | 0.0174 (12) | 0.0214 (14) | 0.0433 (17) | 0.000 | 0.0021 (12) | 0.000 |
C2 | 0.0179 (10) | 0.0263 (12) | 0.0447 (14) | −0.0012 (10) | 0.0000 (10) | 0.0012 (11) |
C3 | 0.0236 (12) | 0.0271 (13) | 0.0656 (19) | −0.0033 (10) | 0.0042 (12) | 0.0084 (13) |
C4 | 0.0240 (17) | 0.0192 (17) | 0.089 (3) | 0.000 | 0.0020 (19) | 0.000 |
C8 | 0.0276 (11) | 0.0245 (12) | 0.0386 (13) | −0.0081 (10) | 0.0118 (10) | −0.0014 (11) |
C9 | 0.0219 (10) | 0.0237 (11) | 0.0331 (12) | −0.0003 (9) | 0.0118 (9) | −0.0031 (10) |
C10 | 0.0304 (12) | 0.0201 (11) | 0.0400 (14) | −0.0056 (10) | 0.0140 (11) | −0.0031 (11) |
C11 | 0.0457 (15) | 0.0356 (15) | 0.0319 (13) | −0.0049 (12) | 0.0105 (11) | 0.0059 (12) |
C12 | 0.0383 (14) | 0.0381 (15) | 0.0329 (13) | −0.0081 (12) | 0.0033 (11) | −0.0051 (12) |
C13 | 0.0256 (11) | 0.0241 (12) | 0.0408 (14) | −0.0059 (10) | 0.0121 (10) | −0.0057 (11) |
C14 | 0.0228 (10) | 0.0230 (12) | 0.0330 (12) | 0.0016 (9) | 0.0095 (9) | −0.0003 (10) |
O2 | 0.040 (2) | 0.106 (4) | 0.094 (3) | 0.032 (2) | −0.0279 (18) | −0.061 (3) |
C15 | 0.035 (2) | 0.041 (3) | 0.062 (3) | 0.009 (2) | −0.011 (2) | −0.026 (2) |
F6 | 0.0586 (14) | 0.0444 (14) | 0.0607 (15) | −0.0048 (12) | 0.0116 (12) | −0.0191 (12) |
F7 | 0.0776 (17) | 0.0436 (14) | 0.0734 (17) | −0.0001 (13) | 0.0204 (13) | −0.0319 (13) |
F8 | 0.0691 (17) | 0.0515 (15) | 0.0451 (13) | 0.0136 (13) | 0.0142 (12) | −0.0149 (11) |
F9 | 0.0761 (18) | 0.0438 (16) | 0.0508 (16) | 0.0007 (15) | 0.0151 (14) | −0.0041 (13) |
F10 | 0.0680 (17) | 0.0360 (14) | 0.0561 (16) | 0.0013 (12) | 0.0117 (13) | −0.0186 (12) |
C16 | 0.038 (2) | 0.036 (2) | 0.043 (2) | 0.0126 (18) | −0.0102 (16) | −0.0140 (17) |
C17 | 0.0409 (18) | 0.0379 (19) | 0.045 (2) | 0.0075 (16) | −0.0048 (16) | −0.0116 (17) |
C18 | 0.050 (2) | 0.0365 (19) | 0.044 (2) | 0.0138 (17) | −0.0044 (16) | −0.0166 (17) |
C19 | 0.047 (2) | 0.044 (2) | 0.0341 (18) | 0.0151 (18) | −0.0019 (16) | −0.0082 (17) |
C20 | 0.055 (3) | 0.029 (2) | 0.033 (2) | 0.0114 (19) | −0.006 (2) | −0.0009 (18) |
C21 | 0.048 (2) | 0.023 (2) | 0.037 (2) | 0.0125 (17) | −0.0080 (18) | −0.0023 (18) |
O2B | 0.040 (5) | 0.030 (5) | 0.044 (5) | 0.004 (4) | −0.016 (4) | 0.017 (4) |
C15B | 0.030 (8) | 0.027 (8) | 0.024 (6) | −0.005 (6) | 0.005 (5) | 0.009 (6) |
F6B | 0.048 (4) | 0.050 (5) | 0.040 (4) | −0.003 (4) | −0.007 (3) | 0.011 (4) |
F7B | 0.083 (6) | 0.049 (5) | 0.038 (4) | 0.001 (5) | −0.012 (4) | −0.003 (4) |
F8B | 0.077 (6) | 0.065 (6) | 0.038 (4) | 0.022 (5) | 0.020 (4) | −0.007 (4) |
F9B | 0.067 (6) | 0.076 (7) | 0.036 (5) | −0.012 (6) | 0.018 (4) | −0.005 (5) |
F10B | 0.055 (5) | 0.038 (4) | 0.025 (3) | −0.013 (4) | 0.004 (3) | −0.006 (3) |
C16B | 0.042 (6) | 0.023 (5) | 0.020 (4) | 0.001 (5) | 0.002 (4) | 0.000 (4) |
C17B | 0.053 (6) | 0.031 (5) | 0.032 (5) | −0.001 (5) | 0.000 (4) | 0.003 (4) |
C18B | 0.060 (6) | 0.039 (5) | 0.027 (5) | 0.007 (5) | −0.001 (5) | −0.002 (4) |
C19B | 0.059 (6) | 0.045 (6) | 0.024 (5) | 0.006 (5) | 0.015 (5) | −0.001 (4) |
C20B | 0.046 (6) | 0.021 (5) | 0.037 (5) | 0.005 (5) | 0.009 (5) | 0.014 (5) |
C21B | 0.044 (6) | 0.009 (4) | 0.020 (5) | 0.003 (4) | 0.001 (4) | 0.002 (4) |
F1—C10 | 1.341 (3) | C15—C16 | 1.498 (6) |
F2—C11 | 1.339 (3) | F6—C17 | 1.321 (3) |
F3—C12 | 1.338 (3) | F7—C18 | 1.333 (3) |
F4—C13 | 1.340 (3) | F8—C19 | 1.324 (3) |
F5—C14 | 1.338 (3) | F9—C20 | 1.327 (4) |
O1—C8 | 1.213 (3) | F10—C21 | 1.320 (3) |
N7—C8 | 1.398 (3) | C16—C17 | 1.3900 |
N7—C15 | 1.417 (6) | C16—C21 | 1.3900 |
N7—C2 | 1.443 (3) | C17—C18 | 1.3900 |
N7—C15B | 1.446 (12) | C18—C19 | 1.3900 |
N1—C2i | 1.330 (3) | C19—C20 | 1.3900 |
N1—C2 | 1.330 (3) | C20—C21 | 1.3900 |
C2—C3 | 1.383 (4) | O2B—C15B | 1.215 (14) |
C3—C4 | 1.379 (3) | C15B—C16B | 1.497 (13) |
C3—H3 | 0.9500 | F6B—C17B | 1.353 (9) |
C4—C3i | 1.379 (3) | F7B—C18B | 1.332 (10) |
C4—H4 | 0.9500 | F8B—C19B | 1.294 (9) |
C8—C9 | 1.498 (3) | F9B—C20B | 1.294 (12) |
C9—C10 | 1.384 (3) | F10B—C21B | 1.321 (9) |
C9—C14 | 1.389 (3) | C16B—C17B | 1.3900 |
C10—C11 | 1.377 (4) | C16B—C21B | 1.3900 |
C11—C12 | 1.377 (4) | C17B—C18B | 1.3900 |
C12—C13 | 1.375 (4) | C18B—C19B | 1.3900 |
C13—C14 | 1.374 (3) | C19B—C20B | 1.3900 |
O2—C15 | 1.200 (6) | C20B—C21B | 1.3900 |
C8—N7—C15 | 117.8 (3) | C17—C16—C21 | 120.0 |
C8—N7—C2 | 119.1 (2) | C17—C16—C15 | 120.9 (3) |
C15—N7—C2 | 121.5 (3) | C21—C16—C15 | 118.5 (3) |
C8—N7—C15B | 138.0 (6) | F6—C17—C16 | 120.4 (2) |
C2—N7—C15B | 102.4 (6) | F6—C17—C18 | 119.6 (2) |
C2i—N1—C2 | 116.5 (3) | C16—C17—C18 | 120.0 |
N1—C2—C3 | 124.4 (3) | F7—C18—C19 | 119.3 (2) |
N1—C2—N7 | 115.5 (2) | F7—C18—C17 | 120.7 (2) |
C3—C2—N7 | 120.2 (2) | C19—C18—C17 | 120.0 |
C4—C3—C2 | 117.5 (3) | F8—C19—C18 | 119.6 (2) |
C4—C3—H3 | 121.3 | F8—C19—C20 | 120.4 (2) |
C2—C3—H3 | 121.3 | C18—C19—C20 | 120.0 |
C3—C4—C3i | 119.8 (4) | F9—C20—C21 | 121.1 (2) |
C3—C4—H4 | 120.1 | F9—C20—C19 | 118.9 (2) |
C3i—C4—H4 | 120.1 | C21—C20—C19 | 120.0 |
O1—C8—N7 | 122.5 (2) | F10—C21—C20 | 119.2 (2) |
O1—C8—C9 | 121.4 (2) | F10—C21—C16 | 120.7 (2) |
N7—C8—C9 | 116.1 (2) | C20—C21—C16 | 120.0 |
C10—C9—C14 | 117.2 (2) | O2B—C15B—N7 | 128.4 (11) |
C10—C9—C8 | 120.1 (2) | O2B—C15B—C16B | 120.1 (11) |
C14—C9—C8 | 122.4 (2) | N7—C15B—C16B | 111.4 (9) |
F1—C10—C11 | 118.5 (2) | C17B—C16B—C21B | 120.0 |
F1—C10—C9 | 119.7 (2) | C17B—C16B—C15B | 117.5 (7) |
C11—C10—C9 | 121.8 (2) | C21B—C16B—C15B | 122.0 (7) |
F2—C11—C12 | 120.6 (2) | F6B—C17B—C18B | 117.5 (6) |
F2—C11—C10 | 120.0 (2) | F6B—C17B—C16B | 122.5 (6) |
C12—C11—C10 | 119.4 (2) | C18B—C17B—C16B | 120.0 |
F3—C12—C13 | 120.1 (2) | F7B—C18B—C17B | 119.8 (7) |
F3—C12—C11 | 119.5 (2) | F7B—C18B—C19B | 120.2 (7) |
C13—C12—C11 | 120.4 (2) | C17B—C18B—C19B | 120.0 |
F4—C13—C14 | 120.7 (2) | F8B—C19B—C20B | 120.6 (8) |
F4—C13—C12 | 119.9 (2) | F8B—C19B—C18B | 119.4 (8) |
C14—C13—C12 | 119.4 (2) | C20B—C19B—C18B | 120.0 |
F5—C14—C13 | 118.0 (2) | F9B—C20B—C19B | 120.8 (8) |
F5—C14—C9 | 120.1 (2) | F9B—C20B—C21B | 118.5 (8) |
C13—C14—C9 | 121.8 (2) | C19B—C20B—C21B | 120.0 |
O2—C15—N7 | 117.4 (5) | F10B—C21B—C20B | 120.3 (7) |
O2—C15—C16 | 122.8 (5) | F10B—C21B—C16B | 118.6 (7) |
N7—C15—C16 | 119.3 (4) | C20B—C21B—C16B | 120.0 |
C2i—N1—C2—C3 | 0.57 (19) | C21—C16—C17—C18 | 0.0 |
C2i—N1—C2—N7 | −178.4 (2) | C15—C16—C17—C18 | −171.1 (3) |
C8—N7—C2—N1 | 62.2 (3) | F6—C17—C18—F7 | −0.9 (3) |
C15—N7—C2—N1 | −103.0 (4) | C16—C17—C18—F7 | −179.2 (3) |
C15B—N7—C2—N1 | −111.0 (6) | F6—C17—C18—C19 | 178.4 (3) |
C8—N7—C2—C3 | −116.9 (3) | C16—C17—C18—C19 | 0.0 |
C15—N7—C2—C3 | 78.0 (4) | F7—C18—C19—F8 | −2.2 (3) |
C15B—N7—C2—C3 | 70.0 (6) | C17—C18—C19—F8 | 178.6 (3) |
N1—C2—C3—C4 | −1.1 (4) | F7—C18—C19—C20 | 179.3 (3) |
N7—C2—C3—C4 | 177.85 (18) | C17—C18—C19—C20 | 0.0 |
C2—C3—C4—C3i | 0.50 (17) | F8—C19—C20—F9 | 2.3 (3) |
C15—N7—C8—O1 | 15.2 (4) | C18—C19—C20—F9 | −179.1 (3) |
C2—N7—C8—O1 | −150.5 (2) | F8—C19—C20—C21 | −178.6 (3) |
C15B—N7—C8—O1 | 19.5 (9) | C18—C19—C20—C21 | 0.0 |
C15—N7—C8—C9 | −164.5 (3) | F9—C20—C21—F10 | 1.7 (3) |
C2—N7—C8—C9 | 29.8 (3) | C19—C20—C21—F10 | −177.5 (3) |
C15B—N7—C8—C9 | −160.2 (8) | F9—C20—C21—C16 | 179.1 (3) |
O1—C8—C9—C10 | 51.4 (3) | C19—C20—C21—C16 | 0.0 |
N7—C8—C9—C10 | −128.9 (2) | C17—C16—C21—F10 | 177.4 (3) |
O1—C8—C9—C14 | −122.1 (3) | C15—C16—C21—F10 | −11.2 (4) |
N7—C8—C9—C14 | 57.6 (3) | C17—C16—C21—C20 | 0.0 |
C14—C9—C10—F1 | −177.86 (19) | C15—C16—C21—C20 | 171.3 (3) |
C8—C9—C10—F1 | 8.3 (3) | C8—N7—C15B—O2B | −155.9 (9) |
C14—C9—C10—C11 | 1.3 (4) | C2—N7—C15B—O2B | 15.1 (14) |
C8—C9—C10—C11 | −172.6 (2) | C8—N7—C15B—C16B | 20.5 (14) |
F1—C10—C11—F2 | −2.1 (4) | C2—N7—C15B—C16B | −168.5 (7) |
C9—C10—C11—F2 | 178.8 (2) | O2B—C15B—C16B—C17B | 37.7 (14) |
F1—C10—C11—C12 | 178.5 (2) | N7—C15B—C16B—C17B | −139.0 (8) |
C9—C10—C11—C12 | −0.6 (4) | O2B—C15B—C16B—C21B | −134.5 (10) |
F2—C11—C12—F3 | −0.6 (4) | N7—C15B—C16B—C21B | 48.8 (11) |
C10—C11—C12—F3 | 178.8 (3) | C21B—C16B—C17B—F6B | −177.6 (9) |
F2—C11—C12—C13 | 179.6 (2) | C15B—C16B—C17B—F6B | 10.0 (10) |
C10—C11—C12—C13 | −1.1 (4) | C21B—C16B—C17B—C18B | 0.0 |
F3—C12—C13—F4 | 1.6 (4) | C15B—C16B—C17B—C18B | −172.3 (9) |
C11—C12—C13—F4 | −178.6 (2) | F6B—C17B—C18B—F7B | −1.2 (9) |
F3—C12—C13—C14 | −177.9 (2) | C16B—C17B—C18B—F7B | −179.0 (9) |
C11—C12—C13—C14 | 2.0 (4) | F6B—C17B—C18B—C19B | 177.8 (9) |
F4—C13—C14—F5 | −3.7 (3) | C16B—C17B—C18B—C19B | 0.0 |
C12—C13—C14—F5 | 175.7 (2) | F7B—C18B—C19B—F8B | −2.6 (11) |
F4—C13—C14—C9 | 179.26 (19) | C17B—C18B—C19B—F8B | 178.4 (10) |
C12—C13—C14—C9 | −1.3 (4) | F7B—C18B—C19B—C20B | 179.0 (9) |
C10—C9—C14—F5 | −177.3 (2) | C17B—C18B—C19B—C20B | 0.0 |
C8—C9—C14—F5 | −3.6 (3) | F8B—C19B—C20B—F9B | −7.9 (12) |
C10—C9—C14—C13 | −0.3 (3) | C18B—C19B—C20B—F9B | 170.5 (12) |
C8—C9—C14—C13 | 173.4 (2) | F8B—C19B—C20B—C21B | −178.4 (10) |
C8—N7—C15—O2 | −153.1 (5) | C18B—C19B—C20B—C21B | 0.0 |
C2—N7—C15—O2 | 12.2 (7) | F9B—C20B—C21B—F10B | −3.3 (10) |
C8—N7—C15—C16 | 34.5 (6) | C19B—C20B—C21B—F10B | 167.5 (10) |
C2—N7—C15—C16 | −160.2 (3) | F9B—C20B—C21B—C16B | −170.7 (11) |
O2—C15—C16—C17 | 73.5 (6) | C19B—C20B—C21B—C16B | 0.0 |
N7—C15—C16—C17 | −114.5 (4) | C17B—C16B—C21B—F10B | −167.7 (10) |
O2—C15—C16—C21 | −97.7 (6) | C15B—C16B—C21B—F10B | 4.3 (11) |
N7—C15—C16—C21 | 74.2 (5) | C17B—C16B—C21B—C20B | 0.0 |
C21—C16—C17—F6 | −178.4 (3) | C15B—C16B—C21B—C20B | 172.0 (9) |
C15—C16—C17—F6 | 10.5 (4) |
Symmetry code: (i) −x+2, y, −z+3/2. |
D—H···A | D—H | H···A | D···A | D—H···A |
C4—H4···N1ii | 0.95 | 2.67 | 3.621 (5) | 180 |
C3—H3···O1ii | 0.95 | 2.52 | 3.318 (3) | 141 |
Symmetry code: (ii) x, y−1, z. |
Experimental details
Crystal data | |
Chemical formula | C33H3F20N3O4 |
Mr | 885.38 |
Crystal system, space group | Monoclinic, C2/c |
Temperature (K) | 123 |
a, b, c (Å) | 21.2370 (5), 6.3940 (1), 23.1045 (5) |
β (°) | 100.585 (1) |
V (Å3) | 3083.96 (11) |
Z | 4 |
Radiation type | Mo Kα |
µ (mm−1) | 0.21 |
Crystal size (mm) | 0.30 × 0.18 × 0.16 |
Data collection | |
Diffractometer | Bruker–Nonius KappaCCD with an APEXII detector |
Absorption correction | – |
No. of measured, independent and observed [I > 2σ(I)] reflections | 7138, 3785, 2526 |
Rint | 0.039 |
(sin θ/λ)max (Å−1) | 0.664 |
Refinement | |
R[F2 > 2σ(F2)], wR(F2), S | 0.057, 0.133, 1.05 |
No. of reflections | 3785 |
No. of parameters | 366 |
No. of restraints | 97 |
H-atom treatment | H-atom parameters constrained |
Δρmax, Δρmin (e Å−3) | 0.35, −0.42 |
Computer programs: COLLECT (Bruker, 2008), DENZO-SMN (Otwinowski & Minor, 1997), SIR2004 (Burla et al., 2005), SHELXL97 (Sheldrick, 2008), ORTEP-3 (Farrugia, 1997) and Mercury (Macrae et al., 2008).
D—H···A | D—H | H···A | D···A | D—H···A |
C4—H4···N1i | 0.95 | 2.67 | 3.621 (5) | 180 |
C3—H3···O1i | 0.95 | 2.52 | 3.318 (3) | 141 |
Symmetry code: (i) x, y−1, z. |
Acknowledgements
Academy Professor Kari Rissanen and the Academy of Finland (project No. 212588) are thanked for financial support to AV. The Polish Ministry of Science and Higher Education (grant No. N N204 174138 to BO) is also gratefully acknowledged.
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 was accidentally obtained by reaction of 2,6-diaminopyridine with two equivalents of 2,3,4,5,6-pentafluorobenzoyl chloride, while the preparation of N,N'-bis(pentafluorobenzoyl)-2,6-diaminopyridine was attempted. The reaction was carried out analogously to our previously reported preparations of 2-acylaminopyridines (Ośmiałowski et al., 2010a). Previously we have structurally characterized two related secondary amides (Ośmiałowski et al., 2010b). This title imide has not been previously reported in the literature. The crystal structure of closely related imide, N,N'-(pyridine-2,6-diyl)-bis(naphthalenedicarboximide), has been reported (Kovalevsky et al., 1999).
In the crystal molecules are located on a twofold rotation axis and one of the symmetry independent perfluorobenzoyl group is disordered over two sets of sites with different occupancies (Fig.1). The perfluorophenyl groups are twisted out of the pyridine core by 67.14 (7) and 21.1 (2) ° in the major component whereas in the minor component these angles are 67.14 (7) and 63.4 (4)°. Furthermore, the dihedral angle between perfluorophenyl - group planes is 63.64 (10) ° [the minor component 67.9 (4) °]. Mercury (Macrae et al., 2008) helped us to find a motif along [0-10] direction (Fig. 2), where the molecule is connected to the translation related one by two C—H···O contacts (Table 1). Between these molecules there is also one rather long but linear C—H···N contact. A few F···CAr, F···F and F···O type contacts were found, which are only slightly shorter than the sum of van der Waals radii.