Abstract
The title compound, C26H26N2O4, synthesized by the reaction of naphthalene-1,4,5,8-tetracarboxylic acid anhydride and cyclohexylamine, exhibits good n-type semiconducting properties. Accordingly, thin-film transistor devices comprising this compound show n-type behavior with high field-effect electron moblity ca 6 cm2/Vs [Shukla, Nelson, Freeman, Rajeswaran, Ahearn, Meyer & Carey(2008 ▶). Chem. Mater. Submitted]. The asymmetric unit comprises one-quarter of the centrosymmetric molecule in which all but two methylene C atoms of the cyclohexane ring lie on a mirror plane; the point-group symmetry is 2/m. The naphthalenediimide unit is strictly planar, and the cyclohexane rings adopt chair conformations with the diimide unit in an equatorial position on each ring.
Related literature
For general background on the semi-conducting properties and use of this class of material in organic thin-film transistor applications, see: Chesterfield et al. (2004a
▶,b
▶); Facceti et al. (2008 ▶); Jones et al. (2004 ▶); Katz et al. (2000a
▶,b
▶); Shukla et al. (2008 ▶).
Experimental
Crystal data
C26H26N2O4
M r = 430.49
Monoclinic,
a = 8.5410 (2) Å
b = 6.6780 (2) Å
c = 18.4270 (9) Å
β = 102.4790 (18)°
V = 1026.19 (6) Å3
Z = 2
Mo Kα radiation
μ = 0.09 mm−1
T = 293 (2) K
0.35 × 0.25 × 0.17 mm
Data collection
Nonius KappaCCD diffractometer
Absorption correction: none
3354 measured reflections
1227 independent reflections
787 reflections with I > 2σ(I)
R int = 0.087
Refinement
R[F 2 > 2σ(F 2)] = 0.067
wR(F 2) = 0.182
S = 1.06
1227 reflections
91 parameters
H-atom parameters constrained
Δρmax = 0.39 e Å−3
Δρmin = −0.29 e Å−3
Data collection: COLLECT (Nonius, 2000 ▶); cell refinement: SCALEPACK (Otwinowski & Minor, 1997 ▶); data reduction: DENZO (Otwinowski & Minor, 1997 ▶) and SCALEPACK; program(s) used to solve structure: SIR97 (Altomare et al., 1999 ▶); program(s) used to refine structure: SHELXTL (Sheldrick, 2008 ▶); molecular graphics: SHELXTL; software used to prepare material for publication: publCIF (Westrip, 2007 ▶).
Supplementary Material
Crystal structure: contains datablocks I, global. DOI: 10.1107/S1600536808025221/sj2528sup1.cif
Structure factors: contains datablocks I. DOI: 10.1107/S1600536808025221/sj2528Isup2.hkl
Additional supplementary materials: crystallographic information; 3D view; checkCIF report
Acknowledgments
We thank Ms Wendy Ahearn and Ms Dianne Meyer of Eastman Kodak Company for material purification and crystal growth via sublimation.
supplementary crystallographic information
Comment
Amongst n-type semiconductors, naphthalene diimide (NDI) and perylene diimide (PDI) based systems have been studied extensively (Chesterfield, et al., 2004a; Chesterfield et al., 2004b; Facceti et al., 2008; Jones, et al., 2004; Katz, et al., 2000a; Katz, et al., 2000b). We report here the structure of the title diimide molecule, I, (Fig. 1).
Experimental
The diimide 1 was prepared by direct condensation of 1,4,5,8-naphthalenetetracarboxylic acid anhydride (1.34 g, 5.00 mmol) and cyclohexylamine (30 mmol) in the presence of zinc acetate (50 mg) in 15 mL quinoline. The mixture was heated at 140-150°C for four hours, cooled and diluted with several volumes of methanol. The resulting slurry was filtered, the collected solid washed with methanol and dried in air. The crude product was then purified by train sublimation at 10-4 to 10-6 torr. 1H NMR (CD2Cl2,500.05 MHz): δ (ppm) = 8.76 (s, 4H), 5.10 (t,2H, J = 12 Hz), 2.64 (dt, 2H, J = 12 and 11.7 Hzs), 1.57 (dt, 2H, J = 12 and11.7 Hz), 2.03 (d, 2H, J = 12 Hz), 1.87 (d, 2H, J = 12 Hz), 1.47 (m, 2H); 13C(CD2Cl2, 500.05 MHz): d = 163.23, 130.74, 127.13, 126.70,54.85, 29.38, 26.66, 25.52; MS (MALDI-TOF) m/z cald. for [C26H26N2O4]430.5 found: 430.2.
Refinement
All H-atoms were positioned geometrically using a riding model with d(C-H) = 0.93Å, Uiso=1.2Ueq (C) for aromatic 0.97Å, Uiso = 1.2Ueq (C) for CH2 atoms.
Figures
Fig. 1.
Structure of the title compound (I), with the atom numbering scheme. Displacement ellipsoids are drawn at the 50% probability level and H atoms are omitted for clarity.
Crystal data
| C26H26N2O4 | F000 = 456 |
| Mr = 430.49 | Dx = 1.393 Mg m−3 |
| Monoclinic, C2/m | Mo Kα radiation λ = 0.71073 Å |
| Hall symbol: -C 2y | Cell parameters from 21067 reflections |
| a = 8.5410 (2) Å | θ = 1.0–27.5º |
| b = 6.6780 (2) Å | µ = 0.09 mm−1 |
| c = 18.4270 (9) Å | T = 293 (2) K |
| β = 102.4790 (18)º | Block, orange |
| V = 1026.19 (6) Å3 | 0.35 × 0.25 × 0.17 mm |
| Z = 2 |
Data collection
| Nonius KappaCCD diffractometer | 1227 independent reflections |
| Radiation source: fine-focus sealed tube | 787 reflections with I > 2σ(I) |
| Monochromator: graphite | Rint = 0.087 |
| Detector resolution: 9 pixels mm-1 | θmax = 27.4º |
| T = 293(2) K | θmin = 4.3º |
| φ and ω scans | h = −10→10 |
| Absorption correction: none | k = −8→8 |
| 3354 measured reflections | l = −23→20 |
Refinement
| Refinement on F2 | Secondary atom site location: difference Fourier map |
| Least-squares matrix: full | Hydrogen site location: inferred from neighbouring sites |
| R[F2 > 2σ(F2)] = 0.067 | H-atom parameters constrained |
| wR(F2) = 0.182 | w = 1/[σ2(Fo2) + (0.0638P)2 + 1.0546P] where P = (Fo2 + 2Fc2)/3 |
| S = 1.06 | (Δ/σ)max < 0.001 |
| 1227 reflections | Δρmax = 0.39 e Å−3 |
| 91 parameters | Δρmin = −0.29 e Å−3 |
| Primary atom site location: structure-invariant direct methods | Extinction correction: none |
Special details
| 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)
| x | y | z | Uiso*/Ueq | ||
| O1 | 0.2160 (3) | 0.0000 | 0.28476 (12) | 0.0594 (8) | |
| O2 | 0.7630 (3) | 0.0000 | 0.33332 (13) | 0.0647 (8) | |
| N1 | 0.4894 (3) | 0.0000 | 0.30625 (13) | 0.0431 (7) | |
| C1 | 0.6391 (4) | 0.0000 | 0.35566 (18) | 0.0457 (8) | |
| C2 | 0.6418 (3) | 0.0000 | 0.43622 (17) | 0.0422 (8) | |
| C3 | 0.7854 (4) | 0.0000 | 0.48703 (18) | 0.0510 (9) | |
| H3 | 0.8806 | 0.0000 | 0.4703 | 0.061* | |
| C4 | 0.4979 (3) | 0.0000 | 0.46157 (16) | 0.0384 (7) | |
| C5 | 0.2086 (4) | 0.0000 | 0.43639 (18) | 0.0494 (9) | |
| H5 | 0.1100 | 0.0000 | 0.4030 | 0.059* | |
| C6 | 0.3486 (3) | 0.0000 | 0.41020 (17) | 0.0410 (7) | |
| C7 | 0.3427 (4) | 0.0000 | 0.32968 (18) | 0.0446 (8) | |
| C8 | 0.4868 (4) | 0.0000 | 0.22507 (16) | 0.0460 (8) | |
| H8 | 0.5991 | 0.0000 | 0.2207 | 0.055* | |
| C9 | 0.4125 (3) | 0.1896 (4) | 0.18665 (13) | 0.0591 (7) | |
| H9A | 0.4684 | 0.3060 | 0.2110 | 0.071* | |
| H9B | 0.3010 | 0.1986 | 0.1901 | 0.071* | |
| C10 | 0.4238 (3) | 0.1862 (5) | 0.10529 (14) | 0.0708 (9) | |
| H10A | 0.3699 | 0.3031 | 0.0803 | 0.085* | |
| H10B | 0.5356 | 0.1926 | 0.1022 | 0.085* | |
| C11 | 0.3488 (5) | 0.0000 | 0.0665 (2) | 0.0664 (11) | |
| H11A | 0.3624 | 0.0000 | 0.0156 | 0.080* | |
| H11B | 0.2348 | 0.0000 | 0.0654 | 0.080* |
Atomic displacement parameters (Å2)
| U11 | U22 | U33 | U12 | U13 | U23 | |
| O1 | 0.0365 (12) | 0.088 (2) | 0.0494 (14) | 0.000 | 0.0005 (9) | 0.000 |
| O2 | 0.0363 (12) | 0.105 (2) | 0.0535 (14) | 0.000 | 0.0113 (10) | 0.000 |
| N1 | 0.0330 (12) | 0.0522 (17) | 0.0428 (14) | 0.000 | 0.0052 (10) | 0.000 |
| C1 | 0.0323 (15) | 0.051 (2) | 0.0514 (19) | 0.000 | 0.0047 (12) | 0.000 |
| C2 | 0.0322 (15) | 0.0478 (19) | 0.0456 (18) | 0.000 | 0.0066 (12) | 0.000 |
| C3 | 0.0296 (15) | 0.071 (2) | 0.0513 (19) | 0.000 | 0.0072 (12) | 0.000 |
| C4 | 0.0309 (14) | 0.0364 (16) | 0.0459 (16) | 0.000 | 0.0040 (11) | 0.000 |
| C5 | 0.0292 (14) | 0.065 (2) | 0.0503 (19) | 0.000 | 0.0012 (12) | 0.000 |
| C6 | 0.0303 (15) | 0.0445 (18) | 0.0460 (17) | 0.000 | 0.0033 (12) | 0.000 |
| C7 | 0.0357 (15) | 0.0466 (19) | 0.0491 (18) | 0.000 | 0.0038 (13) | 0.000 |
| C8 | 0.0379 (15) | 0.059 (2) | 0.0403 (17) | 0.000 | 0.0059 (12) | 0.000 |
| C9 | 0.0643 (15) | 0.0483 (15) | 0.0601 (16) | −0.0050 (13) | 0.0033 (11) | 0.0031 (12) |
| C10 | 0.0716 (17) | 0.080 (2) | 0.0561 (16) | −0.0103 (17) | 0.0045 (12) | 0.0170 (15) |
| C11 | 0.056 (2) | 0.094 (3) | 0.047 (2) | 0.000 | 0.0059 (16) | 0.000 |
Geometric parameters (Å, °)
| O1—C7 | 1.212 (3) | C5—H5 | 0.9300 |
| O2—C1 | 1.216 (4) | C6—C7 | 1.474 (4) |
| N1—C1 | 1.401 (4) | C8—C9ii | 1.521 (3) |
| N1—C7 | 1.411 (4) | C8—C9 | 1.521 (3) |
| N1—C8 | 1.491 (4) | C8—H8 | 0.9800 |
| C1—C2 | 1.480 (4) | C9—C10 | 1.523 (3) |
| C2—C3 | 1.373 (4) | C9—H9A | 0.9700 |
| C2—C4 | 1.406 (4) | C9—H9B | 0.9700 |
| C3—C5i | 1.401 (4) | C10—C11 | 1.506 (4) |
| C3—H3 | 0.9300 | C10—H10A | 0.9700 |
| C4—C4i | 1.409 (6) | C10—H10B | 0.9700 |
| C4—C6 | 1.415 (4) | C11—C10ii | 1.506 (4) |
| C5—C6 | 1.382 (4) | C11—H11A | 0.9700 |
| C5—C3i | 1.401 (4) | C11—H11B | 0.9700 |
| C1—N1—C7 | 123.2 (3) | N1—C8—C9ii | 112.42 (17) |
| C1—N1—C8 | 117.8 (3) | N1—C8—C9 | 112.42 (17) |
| C7—N1—C8 | 119.0 (2) | C9ii—C8—C9 | 112.7 (3) |
| O2—C1—N1 | 121.3 (3) | N1—C8—H8 | 106.2 |
| O2—C1—C2 | 120.9 (3) | C9ii—C8—H8 | 106.2 |
| N1—C1—C2 | 117.8 (3) | C9—C8—H8 | 106.2 |
| C3—C2—C4 | 119.3 (3) | C8—C9—C10 | 109.7 (2) |
| C3—C2—C1 | 120.1 (3) | C8—C9—H9A | 109.7 |
| C4—C2—C1 | 120.5 (3) | C10—C9—H9A | 109.7 |
| C2—C3—C5i | 121.3 (3) | C8—C9—H9B | 109.7 |
| C2—C3—H3 | 119.3 | C10—C9—H9B | 109.7 |
| C5i—C3—H3 | 119.3 | H9A—C9—H9B | 108.2 |
| C2—C4—C4i | 120.0 (3) | C11—C10—C9 | 111.6 (3) |
| C2—C4—C6 | 120.3 (3) | C11—C10—H10A | 109.3 |
| C4i—C4—C6 | 119.7 (3) | C9—C10—H10A | 109.3 |
| C6—C5—C3i | 120.4 (3) | C11—C10—H10B | 109.3 |
| C6—C5—H5 | 119.8 | C9—C10—H10B | 109.3 |
| C3i—C5—H5 | 119.8 | H10A—C10—H10B | 108.0 |
| C5—C6—C4 | 119.3 (3) | C10—C11—C10ii | 111.3 (3) |
| C5—C6—C7 | 120.5 (3) | C10—C11—H11A | 109.4 |
| C4—C6—C7 | 120.2 (3) | C10ii—C11—H11A | 109.4 |
| O1—C7—N1 | 120.8 (3) | C10—C11—H11B | 109.4 |
| O1—C7—C6 | 121.2 (3) | C10ii—C11—H11B | 109.4 |
| N1—C7—C6 | 118.0 (2) | H11A—C11—H11B | 108.0 |
| C7—N1—C1—O2 | 180.0 | C2—C4—C6—C7 | 0.0 |
| C8—N1—C1—O2 | 0.0 | C4i—C4—C6—C7 | 180.0 |
| C7—N1—C1—C2 | 0.0 | C1—N1—C7—O1 | 180.0 |
| C8—N1—C1—C2 | 180.0 | C8—N1—C7—O1 | 0.0 |
| O2—C1—C2—C3 | 0.0 | C1—N1—C7—C6 | 0.0 |
| N1—C1—C2—C3 | 180.0 | C8—N1—C7—C6 | 180.0 |
| O2—C1—C2—C4 | 180.0 | C5—C6—C7—O1 | 0.0 |
| N1—C1—C2—C4 | 0.0 | C4—C6—C7—O1 | 180.0 |
| C4—C2—C3—C5i | 0.000 (1) | C5—C6—C7—N1 | 180.0 |
| C1—C2—C3—C5i | 180.0 | C4—C6—C7—N1 | 0.0 |
| C3—C2—C4—C4i | 0.0 | C1—N1—C8—C9ii | 115.76 (19) |
| C1—C2—C4—C4i | 180.0 | C7—N1—C8—C9ii | −64.24 (19) |
| C3—C2—C4—C6 | 180.0 | C1—N1—C8—C9 | −115.76 (19) |
| C1—C2—C4—C6 | 0.0 | C7—N1—C8—C9 | 64.24 (19) |
| C3i—C5—C6—C4 | 0.000 (1) | N1—C8—C9—C10 | 176.2 (2) |
| C3i—C5—C6—C7 | 180.0 | C9ii—C8—C9—C10 | −55.5 (4) |
| C2—C4—C6—C5 | 180.0 | C8—C9—C10—C11 | 55.2 (3) |
| C4i—C4—C6—C5 | 0.000 (1) | C9—C10—C11—C10ii | −56.5 (4) |
Symmetry codes: (i) −x+1, −y, −z+1; (ii) x, −y, z.
Footnotes
Supplementary data and figures for this paper are available from the IUCr electronic archives (Reference: SJ2528).
References
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Associated Data
This section collects any data citations, data availability statements, or supplementary materials included in this article.
Supplementary Materials
Crystal structure: contains datablocks I, global. DOI: 10.1107/S1600536808025221/sj2528sup1.cif
Structure factors: contains datablocks I. DOI: 10.1107/S1600536808025221/sj2528Isup2.hkl
Additional supplementary materials: crystallographic information; 3D view; checkCIF report

