organic compounds
5,5-Bis(4-methoxyphenyl)-2,8-bis[3-(trifluoromethyl)phenyl]-5H-cyclopenta[2,1-b:3,4-b']dipyridine
aDepartment of Materials Science and Engineering, Nagoya Institute of Technology, Gokiso, Showa-ku, Nagoya 466-8555, Japan, and bInstitute for Molecular Science, Myodaiji, Okazaki 444-8585, Japan
*Correspondence e-mail: ono.katsuhiko@nitech.ac.jp
The title compound, C39H26F6N2O2, showed two melting transitions 477.4 and 506.5 K in a (DSC) study. The first of these can be attributed to a melting arising from the rotation of two trifluoromethyl groups. In the both trifluoromethyl groups are disordered over two sites with occupancy factors of 0.660 (17) and 0.340 (17) for the major and minor orientations, respectively. The introduction of trifluoromethyl groups inhibits π-stacking between the diazafluorene (cyclopenta[2,1-b:3,4-b']dipyridine) units. Three short F⋯O contacts between 2.80 (3) and 2.95 (1) Å are observed in the crystal structure.
Related literature
The synthesis and thermal properties of the title compound were reported by Ono et al. (2007). For related literature on molecular and crystal structures, including the 4,5-diazafluorene system, see: Ono & Saito (2008).
Experimental
Crystal data
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Data collection: CrystalClear (Rigaku/MSC, 2001); 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: PLATON (Spek, 2003) and Mercury (Macrae et al., 2006); software used to prepare material for publication: WinGX (Farrugia, 1999).
Supporting information
10.1107/S160053680803420X/hb2809sup1.cif
contains datablocks I, global. DOI:Structure factors: contains datablock I. DOI: 10.1107/S160053680803420X/hb2809Isup2.hkl
The title compound (I) was synthesized by the direct arylation reaction of mono-substituted compound (II), which was also prepared by the direct arylation of 5,5-bis(4-methoxyphenyl)-5H-cyclopenta[2,1-b:3,4-b']dipyridine (III). The direct arylation of compound (II) was performed as follows: nBuLi in hexane (1.60 M, 3.3 ml, 5.2 mmol) was added dropwise to a solution of 3-bromobenzotrifluoride (0.66 ml, 4.8 mmol) in dry ether (20 ml) at 195 K under nitrogen. The solution was stirred at 195 K for 30 min and at 0 °C for 30 min. Compound (II) (1.52 g, 4.0 mmol) and dry toluene (30 ml) were added to the solution at 253 K. The reaction mixture was stirred at 253 K for 30 min and at room temperature overnight. The mixture was poured into water and dichloromethane was added. The organic layer was separated and aqueous layer was extracted with dichloromethane (× 2). Manganese(IV) oxide (MnO2) (10 g) was added to the combined organic solution and the mixture was stirred for 30 min. Further, anhydrous magnesium sulfate (MgSO4) (10 g) was added and the mixture was stirred for 30 min. After filtration and condensation, the residue was chromatographed on silica gel (hexane/ethyl acetate = 3:1 v/v) to afford the title compound as a white solid (1.28 g, 39%). Colorless prisms of (I) suitable for X-ray analysis were grown from an acetonitrile solution.
Anomalous dispersion was negligible and Friedel pairs were merged before refinement.
All the H atoms were placed in geometrically calculated positions, with C—H = 0.95 (phenyl) and 0.98 (methyl) Å, and refined using a riding model with Uiso(H) = 1.2Ueq(C) (phenyl) and 1.5Ueq(C) (methyl).
Data collection: CrystalClear (Rigaku/MSC, 2001); cell
CrystalClear (Rigaku/MSC, 2001); data reduction: CrystalClear (Rigaku/MSC, 2001); program(s) used to solve structure: SHELXS97 (Sheldrick, 2008); program(s) used to refine structure: SHELXL97 (Sheldrick, 2008); molecular graphics: PLATON (Spek, 2003) and Mercury (Macrae et al., 2006); software used to prepare material for publication: WinGX (Farrugia, 1999).C39H26F6N2O2 | Dx = 1.437 Mg m−3 |
Mr = 668.62 | Melting point: 483 K |
Orthorhombic, P212121 | Mo Kα radiation, λ = 0.71073 Å |
Hall symbol: P 2ac 2ab | Cell parameters from 9363 reflections |
a = 9.283 (2) Å | θ = 3.0–27.5° |
b = 12.357 (3) Å | µ = 0.11 mm−1 |
c = 26.941 (6) Å | T = 173 K |
V = 3090.4 (12) Å3 | Prism, colorless |
Z = 4 | 0.38 × 0.30 × 0.20 mm |
F(000) = 1376 |
Rigaku/MSC Mercury CCD diffractometer | 2849 reflections with I > 2σ(I) |
Radiation source: Rotating Anode | Rint = 0.040 |
Graphite Monochromator monochromator | θmax = 27.5°, θmin = 3.0° |
Detector resolution: 14.7059 pixels mm-1 | h = −11→11 |
ϕ and ω scans | k = −15→13 |
20599 measured reflections | l = −30→34 |
3171 independent reflections |
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)] = 0.056 | H-atom parameters constrained |
wR(F2) = 0.146 | w = 1/[σ2(Fo2) + (0.1005P)2 + 0.7722P] where P = (Fo2 + 2Fc2)/3 |
S = 1.05 | (Δ/σ)max = 0.004 |
3171 reflections | Δρmax = 0.28 e Å−3 |
498 parameters | Δρmin = −0.25 e Å−3 |
24 restraints | Extinction correction: SHELXL97 (Sheldrick, 2008), Fc*=kFc[1+0.001xFc2λ3/sin(2θ)]-1/4 |
Primary atom site location: structure-invariant direct methods | Extinction coefficient: 0.0027 (15) |
C39H26F6N2O2 | V = 3090.4 (12) Å3 |
Mr = 668.62 | Z = 4 |
Orthorhombic, P212121 | Mo Kα radiation |
a = 9.283 (2) Å | µ = 0.11 mm−1 |
b = 12.357 (3) Å | T = 173 K |
c = 26.941 (6) Å | 0.38 × 0.30 × 0.20 mm |
Rigaku/MSC Mercury CCD diffractometer | 2849 reflections with I > 2σ(I) |
20599 measured reflections | Rint = 0.040 |
3171 independent reflections |
R[F2 > 2σ(F2)] = 0.056 | 24 restraints |
wR(F2) = 0.146 | H-atom parameters constrained |
S = 1.05 | Δρmax = 0.28 e Å−3 |
3171 reflections | Δρmin = −0.25 e Å−3 |
498 parameters |
Experimental. IR (KBr, cm-1): 1607, 1574, 1510, 1337, 1298, 1256, 1175, 1130, 1073, 1030, 837, 808, 700; 1H NMR (CDCl3, δ p.p.m): 3.78 (s, 6H), 6.81 (d, 4H, J = 8.8 Hz), 7.17 (d, 4H, J = 8.8 Hz), 7.62–7.73 (m, 4H), 7.79 (d, 2H, J = 8.1 Hz), 7.88 (d, 2H, J = 8.1 Hz), 8.45 (m, 4H). 13C NMR (CDCl3, δ p.p.m): 55.3, 59.9, 114.1, 121.1, 124.2 (q, J = 3.7 Hz), 124.2 (q, J = 272.5 Hz), 125.8 (q, J = 3.6 Hz), 128.9, 129.2, 130.8, 131.1 (q, J = 30.5 Hz), 134.6, 135.4, 139.7, 146.3, 156.6, 157.4, 158.9; MS (EI): m/z 668 (M+, 100). Anal. Calcd for C39H26F6N2O2: C, 70.06; H, 3.92; N, 4.19. Found: C, 70.32; H, 3.81; N, 4.24. |
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. The fluorine atoms of the two trifluoromethyl groups are disordered over two sites (F1–F6 and F7–F12) with occupancies of 0.66 (2):0.34 (2). The values were determined by refining site occupancies. |
x | y | z | Uiso*/Ueq | Occ. (<1) | |
C1 | −0.0417 (4) | −0.0056 (3) | 0.68651 (14) | 0.0225 (8) | |
C2 | −0.1083 (4) | −0.0379 (3) | 0.73646 (14) | 0.0221 (8) | |
C3 | −0.2401 (4) | −0.0855 (3) | 0.74784 (15) | 0.0243 (8) | |
H3 | −0.3053 | −0.1065 | 0.7224 | 0.029* | |
C4 | −0.2729 (5) | −0.1013 (3) | 0.79725 (15) | 0.0274 (9) | |
H4 | −0.3601 | −0.1365 | 0.8061 | 0.033* | |
C5 | −0.1782 (4) | −0.0656 (3) | 0.83462 (14) | 0.0241 (8) | |
C6 | −0.0207 (4) | −0.0069 (3) | 0.77591 (14) | 0.0217 (8) | |
C7 | 0.1139 (4) | 0.0386 (3) | 0.75513 (14) | 0.0211 (8) | |
C8 | 0.3389 (4) | 0.1127 (3) | 0.75455 (15) | 0.0227 (8) | |
C9 | 0.3418 (5) | 0.1070 (3) | 0.70272 (16) | 0.0284 (9) | |
H9 | 0.4251 | 0.1307 | 0.6853 | 0.034* | |
C10 | 0.2246 (5) | 0.0673 (3) | 0.67642 (15) | 0.0264 (8) | |
H10 | 0.2256 | 0.0628 | 0.6412 | 0.032* | |
C11 | 0.1057 (4) | 0.0345 (3) | 0.70387 (14) | 0.0219 (8) | |
C12 | −0.0196 (5) | −0.2558 (3) | 0.57401 (15) | 0.0251 (8) | |
C13 | −0.0576 (4) | −0.2838 (3) | 0.62200 (15) | 0.0247 (8) | |
H13 | −0.0803 | −0.3568 | 0.6298 | 0.030* | |
C14 | −0.0625 (4) | −0.2046 (3) | 0.65879 (15) | 0.0237 (8) | |
H14 | −0.0888 | −0.2247 | 0.6916 | 0.028* | |
C15 | −0.0298 (4) | −0.0961 (3) | 0.64873 (14) | 0.0229 (8) | |
C16 | 0.0115 (4) | −0.0708 (3) | 0.59949 (15) | 0.0258 (9) | |
H16 | 0.0345 | 0.0019 | 0.5912 | 0.031* | |
C17 | 0.0190 (5) | −0.1496 (3) | 0.56326 (15) | 0.0266 (9) | |
H17 | 0.0507 | −0.1312 | 0.5308 | 0.032* | |
C18 | −0.3207 (4) | 0.2477 (3) | 0.62886 (15) | 0.0265 (9) | |
C19 | −0.3525 (4) | 0.1388 (3) | 0.62095 (15) | 0.0262 (9) | |
H19 | −0.4372 | 0.1190 | 0.6034 | 0.031* | |
C20 | −0.2610 (4) | 0.0602 (3) | 0.63860 (15) | 0.0256 (9) | |
H20 | −0.2836 | −0.0138 | 0.6331 | 0.031* | |
C21 | −0.1352 (4) | 0.0870 (3) | 0.66452 (14) | 0.0215 (8) | |
C22 | −0.1038 (5) | 0.1955 (3) | 0.67151 (15) | 0.0264 (9) | |
H22 | −0.0184 | 0.2153 | 0.6887 | 0.032* | |
C23 | −0.1952 (5) | 0.2765 (3) | 0.65377 (16) | 0.0296 (9) | |
H23 | −0.1719 | 0.3506 | 0.6587 | 0.036* | |
C24 | −0.0996 (6) | −0.4215 (4) | 0.53919 (18) | 0.0383 (11) | |
H24A | −0.0856 | −0.4665 | 0.5096 | 0.058* | |
H24B | −0.2013 | −0.4010 | 0.5418 | 0.058* | |
H24C | −0.0712 | −0.4624 | 0.5688 | 0.058* | |
C25 | −0.3891 (6) | 0.4316 (3) | 0.6160 (2) | 0.0477 (13) | |
H25A | −0.4691 | 0.4739 | 0.6022 | 0.072* | |
H25B | −0.3007 | 0.4481 | 0.5976 | 0.072* | |
H25C | −0.3760 | 0.4501 | 0.6510 | 0.072* | |
C26 | −0.2127 (4) | −0.0782 (3) | 0.88795 (14) | 0.0250 (8) | |
C27 | −0.2372 (5) | −0.1807 (4) | 0.90810 (15) | 0.0302 (9) | |
H27 | −0.2328 | −0.2428 | 0.8874 | 0.036* | |
C28 | −0.2681 (5) | −0.1925 (4) | 0.95836 (16) | 0.0336 (10) | |
C29 | −0.2793 (5) | −0.1024 (4) | 0.98864 (17) | 0.0384 (11) | |
H29 | −0.3024 | −0.1104 | 1.0228 | 0.046* | |
C30 | −0.2569 (5) | −0.0014 (4) | 0.96899 (17) | 0.0395 (11) | |
H30 | −0.2646 | 0.0606 | 0.9897 | 0.047* | |
C31 | −0.2231 (5) | 0.0109 (4) | 0.91903 (16) | 0.0325 (10) | |
H31 | −0.2070 | 0.0813 | 0.9060 | 0.039* | |
C32 | 0.4591 (4) | 0.1623 (3) | 0.78298 (14) | 0.0237 (8) | |
C33 | 0.4380 (4) | 0.1942 (3) | 0.83220 (16) | 0.0270 (9) | |
H33 | 0.3477 | 0.1814 | 0.8477 | 0.032* | |
C34 | 0.5474 (5) | 0.2441 (3) | 0.85863 (15) | 0.0274 (9) | |
C35 | 0.6800 (5) | 0.2636 (4) | 0.83707 (17) | 0.0366 (11) | |
H35 | 0.7541 | 0.2990 | 0.8552 | 0.044* | |
C36 | 0.7027 (5) | 0.2308 (4) | 0.78883 (18) | 0.0446 (13) | |
H36 | 0.7941 | 0.2424 | 0.7739 | 0.053* | |
C37 | 0.5943 (5) | 0.1811 (4) | 0.76177 (17) | 0.0346 (10) | |
H37 | 0.6120 | 0.1595 | 0.7285 | 0.041* | |
C38 | −0.2852 (7) | −0.3031 (4) | 0.97895 (19) | 0.0466 (12) | |
C39 | 0.5217 (5) | 0.2783 (4) | 0.91103 (17) | 0.0375 (10) | |
N1 | −0.0507 (4) | −0.0179 (3) | 0.82383 (12) | 0.0236 (7) | |
N2 | 0.2259 (4) | 0.0768 (3) | 0.78144 (12) | 0.0233 (7) | |
O1 | −0.0136 (4) | −0.3268 (2) | 0.53532 (11) | 0.0343 (7) | |
O2 | −0.4209 (3) | 0.3188 (2) | 0.61156 (12) | 0.0369 (8) | |
F1 | −0.3382 (15) | −0.3725 (10) | 0.9461 (4) | 0.071 (3) | 0.660 (17) |
F2 | −0.3476 (14) | −0.3106 (8) | 1.0210 (3) | 0.075 (3) | 0.660 (17) |
F3 | −0.1500 (9) | −0.3518 (9) | 0.9890 (5) | 0.075 (3) | 0.660 (17) |
F4 | 0.4349 (13) | 0.2060 (11) | 0.9350 (2) | 0.090 (4) | 0.660 (17) |
F5 | 0.6399 (7) | 0.2656 (8) | 0.9387 (4) | 0.056 (2) | 0.660 (17) |
F6 | 0.4708 (16) | 0.3715 (9) | 0.9164 (3) | 0.107 (5) | 0.660 (17) |
F7 | −0.422 (3) | −0.3074 (18) | 1.0018 (14) | 0.142 (12) | 0.340 (17) |
F8 | −0.198 (4) | −0.3251 (18) | 1.0103 (10) | 0.116 (10) | 0.340 (17) |
F9 | −0.307 (3) | −0.383 (2) | 0.9498 (6) | 0.074 (7) | 0.340 (17) |
F10 | 0.559 (3) | 0.3875 (16) | 0.9153 (8) | 0.124 (9) | 0.340 (17) |
F11 | 0.3896 (12) | 0.2861 (18) | 0.9235 (6) | 0.069 (6) | 0.340 (17) |
F12 | 0.588 (4) | 0.238 (3) | 0.9431 (10) | 0.155 (13) | 0.340 (17) |
U11 | U22 | U33 | U12 | U13 | U23 | |
C1 | 0.0176 (19) | 0.0241 (19) | 0.0257 (19) | −0.0006 (15) | −0.0014 (16) | 0.0025 (15) |
C2 | 0.0169 (19) | 0.0242 (19) | 0.0252 (19) | −0.0001 (15) | 0.0009 (16) | 0.0004 (14) |
C3 | 0.020 (2) | 0.026 (2) | 0.0266 (19) | −0.0040 (15) | −0.0008 (16) | −0.0027 (15) |
C4 | 0.023 (2) | 0.029 (2) | 0.031 (2) | −0.0062 (17) | 0.0011 (18) | −0.0025 (16) |
C5 | 0.023 (2) | 0.0240 (19) | 0.025 (2) | −0.0035 (15) | 0.0013 (17) | −0.0006 (14) |
C6 | 0.0180 (19) | 0.0228 (19) | 0.0243 (19) | 0.0001 (14) | 0.0018 (16) | −0.0020 (14) |
C7 | 0.0155 (19) | 0.0203 (18) | 0.028 (2) | −0.0030 (14) | −0.0008 (16) | −0.0001 (14) |
C8 | 0.016 (2) | 0.024 (2) | 0.028 (2) | −0.0032 (15) | −0.0003 (16) | −0.0022 (15) |
C9 | 0.018 (2) | 0.032 (2) | 0.035 (2) | −0.0064 (16) | 0.0030 (18) | 0.0009 (17) |
C10 | 0.024 (2) | 0.030 (2) | 0.0254 (19) | −0.0004 (16) | 0.0033 (17) | −0.0005 (16) |
C11 | 0.0164 (19) | 0.0226 (19) | 0.027 (2) | −0.0007 (14) | 0.0007 (16) | −0.0011 (15) |
C12 | 0.021 (2) | 0.028 (2) | 0.027 (2) | 0.0017 (16) | −0.0005 (17) | −0.0002 (15) |
C13 | 0.023 (2) | 0.0229 (19) | 0.028 (2) | 0.0017 (15) | 0.0007 (17) | −0.0014 (15) |
C14 | 0.017 (2) | 0.027 (2) | 0.028 (2) | −0.0008 (15) | 0.0004 (16) | 0.0043 (15) |
C15 | 0.019 (2) | 0.0254 (19) | 0.0242 (19) | −0.0010 (15) | −0.0004 (16) | 0.0004 (14) |
C16 | 0.022 (2) | 0.0231 (19) | 0.032 (2) | −0.0031 (16) | 0.0001 (17) | 0.0008 (15) |
C17 | 0.029 (2) | 0.028 (2) | 0.024 (2) | −0.0024 (17) | −0.0002 (18) | 0.0028 (15) |
C18 | 0.022 (2) | 0.029 (2) | 0.028 (2) | 0.0028 (16) | −0.0010 (17) | 0.0028 (16) |
C19 | 0.018 (2) | 0.031 (2) | 0.029 (2) | −0.0016 (16) | −0.0050 (17) | −0.0021 (16) |
C20 | 0.024 (2) | 0.027 (2) | 0.0256 (19) | 0.0003 (16) | 0.0009 (17) | −0.0011 (15) |
C21 | 0.019 (2) | 0.0231 (19) | 0.0228 (19) | 0.0021 (15) | 0.0016 (15) | −0.0022 (14) |
C22 | 0.023 (2) | 0.026 (2) | 0.030 (2) | −0.0011 (16) | −0.0051 (17) | 0.0005 (16) |
C23 | 0.025 (2) | 0.026 (2) | 0.038 (2) | −0.0023 (16) | 0.0002 (19) | 0.0042 (17) |
C24 | 0.044 (3) | 0.031 (2) | 0.040 (2) | −0.007 (2) | 0.000 (2) | −0.0066 (19) |
C25 | 0.038 (3) | 0.029 (2) | 0.076 (4) | 0.004 (2) | −0.011 (3) | 0.013 (2) |
C26 | 0.0163 (19) | 0.034 (2) | 0.025 (2) | −0.0038 (16) | 0.0030 (16) | −0.0009 (16) |
C27 | 0.029 (2) | 0.034 (2) | 0.028 (2) | −0.0080 (17) | −0.0002 (18) | 0.0006 (16) |
C28 | 0.031 (2) | 0.039 (2) | 0.031 (2) | −0.0077 (19) | 0.000 (2) | 0.0056 (18) |
C29 | 0.038 (3) | 0.048 (3) | 0.029 (2) | −0.007 (2) | 0.006 (2) | −0.0015 (19) |
C30 | 0.041 (3) | 0.041 (3) | 0.036 (2) | −0.005 (2) | 0.007 (2) | −0.007 (2) |
C31 | 0.033 (2) | 0.033 (2) | 0.032 (2) | −0.0027 (19) | 0.0080 (19) | −0.0064 (18) |
C32 | 0.018 (2) | 0.026 (2) | 0.027 (2) | −0.0035 (15) | −0.0008 (16) | −0.0011 (15) |
C33 | 0.016 (2) | 0.030 (2) | 0.034 (2) | −0.0025 (15) | −0.0013 (17) | −0.0039 (16) |
C34 | 0.021 (2) | 0.033 (2) | 0.027 (2) | −0.0036 (17) | −0.0029 (17) | −0.0030 (16) |
C35 | 0.023 (2) | 0.052 (3) | 0.035 (2) | −0.013 (2) | −0.0026 (19) | −0.004 (2) |
C36 | 0.024 (2) | 0.073 (4) | 0.036 (3) | −0.020 (2) | 0.002 (2) | −0.010 (2) |
C37 | 0.023 (2) | 0.051 (3) | 0.029 (2) | −0.0058 (19) | 0.0029 (18) | −0.0136 (19) |
C38 | 0.060 (3) | 0.046 (3) | 0.033 (2) | −0.008 (3) | −0.003 (2) | 0.013 (2) |
C39 | 0.026 (2) | 0.055 (3) | 0.031 (2) | −0.004 (2) | −0.0031 (19) | −0.010 (2) |
N1 | 0.0190 (17) | 0.0266 (17) | 0.0253 (17) | −0.0033 (13) | 0.0040 (14) | −0.0002 (13) |
N2 | 0.0191 (17) | 0.0255 (17) | 0.0251 (16) | −0.0004 (13) | 0.0001 (14) | −0.0011 (12) |
O1 | 0.043 (2) | 0.0291 (16) | 0.0307 (15) | −0.0046 (13) | 0.0021 (14) | −0.0048 (12) |
O2 | 0.0261 (17) | 0.0336 (17) | 0.051 (2) | 0.0062 (13) | −0.0094 (15) | 0.0072 (14) |
F1 | 0.103 (6) | 0.037 (4) | 0.072 (5) | −0.032 (4) | −0.048 (4) | 0.020 (3) |
F2 | 0.122 (8) | 0.061 (4) | 0.041 (3) | −0.009 (6) | 0.028 (4) | 0.014 (3) |
F3 | 0.065 (4) | 0.054 (5) | 0.107 (8) | 0.009 (3) | −0.020 (4) | 0.021 (5) |
F4 | 0.100 (7) | 0.139 (8) | 0.031 (3) | −0.077 (7) | 0.024 (4) | −0.021 (4) |
F5 | 0.025 (3) | 0.114 (5) | 0.030 (3) | 0.006 (3) | −0.007 (2) | −0.026 (3) |
F6 | 0.190 (13) | 0.088 (6) | 0.042 (4) | 0.105 (7) | −0.025 (6) | −0.020 (4) |
F7 | 0.137 (16) | 0.061 (9) | 0.23 (3) | 0.015 (13) | 0.144 (18) | 0.045 (15) |
F8 | 0.18 (2) | 0.060 (12) | 0.108 (19) | −0.014 (15) | −0.081 (18) | 0.035 (11) |
F9 | 0.16 (2) | 0.050 (8) | 0.016 (5) | 0.015 (9) | 0.021 (8) | 0.016 (4) |
F10 | 0.17 (2) | 0.097 (10) | 0.102 (12) | −0.089 (13) | 0.058 (12) | −0.076 (9) |
F11 | 0.031 (5) | 0.114 (15) | 0.061 (8) | −0.013 (6) | 0.023 (5) | −0.051 (9) |
F12 | 0.18 (2) | 0.22 (2) | 0.057 (10) | 0.17 (2) | −0.014 (16) | −0.015 (15) |
C1—C15 | 1.516 (5) | C24—O1 | 1.421 (5) |
C1—C11 | 1.529 (5) | C24—H24A | 0.9800 |
C1—C2 | 1.534 (5) | C24—H24B | 0.9800 |
C1—C21 | 1.553 (5) | C24—H24C | 0.9800 |
C2—C3 | 1.391 (5) | C25—O2 | 1.430 (6) |
C2—C6 | 1.392 (6) | C25—H25A | 0.9800 |
C3—C4 | 1.379 (6) | C25—H25B | 0.9800 |
C3—H3 | 0.9500 | C25—H25C | 0.9800 |
C4—C5 | 1.407 (6) | C26—C31 | 1.387 (6) |
C4—H4 | 0.9500 | C26—C27 | 1.396 (6) |
C5—N1 | 1.354 (5) | C27—C28 | 1.392 (6) |
C5—C26 | 1.480 (5) | C27—H27 | 0.9500 |
C6—N1 | 1.328 (5) | C28—C29 | 1.385 (6) |
C6—C7 | 1.480 (5) | C28—C38 | 1.483 (7) |
C7—N2 | 1.344 (5) | C29—C30 | 1.371 (7) |
C7—C11 | 1.384 (5) | C29—H29 | 0.9500 |
C8—N2 | 1.350 (5) | C30—C31 | 1.390 (7) |
C8—C9 | 1.398 (6) | C30—H30 | 0.9500 |
C8—C32 | 1.486 (5) | C31—H31 | 0.9500 |
C9—C10 | 1.388 (6) | C32—C37 | 1.398 (6) |
C9—H9 | 0.9500 | C32—C33 | 1.397 (6) |
C10—C11 | 1.389 (6) | C33—C34 | 1.385 (6) |
C10—H10 | 0.9500 | C33—H33 | 0.9500 |
C12—O1 | 1.364 (5) | C34—C35 | 1.383 (6) |
C12—C13 | 1.384 (6) | C34—C39 | 1.493 (6) |
C12—C17 | 1.391 (5) | C35—C36 | 1.378 (7) |
C13—C14 | 1.393 (6) | C35—H35 | 0.9500 |
C13—H13 | 0.9500 | C36—C37 | 1.387 (6) |
C14—C15 | 1.401 (5) | C36—H36 | 0.9500 |
C14—H14 | 0.9500 | C37—H37 | 0.9500 |
C15—C16 | 1.416 (6) | C38—F8 | 1.20 (2) |
C16—C17 | 1.380 (5) | C38—F9 | 1.28 (2) |
C16—H16 | 0.9500 | C38—F2 | 1.275 (10) |
C17—H17 | 0.9500 | C38—F1 | 1.328 (11) |
C18—O2 | 1.362 (5) | C38—F3 | 1.418 (10) |
C18—C23 | 1.391 (6) | C38—F7 | 1.417 (19) |
C18—C19 | 1.393 (6) | C39—F12 | 1.17 (2) |
C19—C20 | 1.376 (6) | C39—F11 | 1.275 (11) |
C19—H19 | 0.9500 | C39—F6 | 1.253 (8) |
C20—C21 | 1.401 (6) | C39—F5 | 1.336 (9) |
C20—H20 | 0.9500 | C39—F10 | 1.399 (16) |
C21—C22 | 1.385 (5) | C39—F4 | 1.366 (8) |
C22—C23 | 1.396 (6) | F5—O1i | 2.953 (11) |
C22—H22 | 0.9500 | F8—O2ii | 2.94 (3) |
C23—H23 | 0.9500 | F12—O1i | 2.80 (3) |
C15—C1—C11 | 112.3 (3) | C18—C23—H23 | 120.3 |
C15—C1—C2 | 115.2 (3) | C22—C23—H23 | 120.3 |
C11—C1—C2 | 100.2 (3) | O1—C24—H24A | 109.5 |
C15—C1—C21 | 109.2 (3) | O1—C24—H24B | 109.5 |
C11—C1—C21 | 112.2 (3) | H24A—C24—H24B | 109.5 |
C2—C1—C21 | 107.5 (3) | O1—C24—H24C | 109.5 |
C3—C2—C6 | 117.5 (4) | H24A—C24—H24C | 109.5 |
C3—C2—C1 | 131.1 (4) | H24B—C24—H24C | 109.5 |
C6—C2—C1 | 111.3 (3) | O2—C25—H25A | 109.5 |
C4—C3—C2 | 117.8 (4) | O2—C25—H25B | 109.5 |
C4—C3—H3 | 121.1 | H25A—C25—H25B | 109.5 |
C2—C3—H3 | 121.1 | O2—C25—H25C | 109.5 |
C3—C4—C5 | 120.6 (4) | H25A—C25—H25C | 109.5 |
C3—C4—H4 | 119.7 | H25B—C25—H25C | 109.5 |
C5—C4—H4 | 119.7 | C31—C26—C27 | 118.3 (4) |
N1—C5—C4 | 121.9 (4) | C31—C26—C5 | 121.1 (4) |
N1—C5—C26 | 116.3 (3) | C27—C26—C5 | 120.6 (4) |
C4—C5—C26 | 121.7 (4) | C28—C27—C26 | 120.5 (4) |
N1—C6—C2 | 126.3 (4) | C28—C27—H27 | 119.8 |
N1—C6—C7 | 125.7 (3) | C26—C27—H27 | 119.8 |
C2—C6—C7 | 108.0 (3) | C29—C28—C27 | 120.3 (4) |
N2—C7—C11 | 125.6 (4) | C29—C28—C38 | 120.9 (4) |
N2—C7—C6 | 125.9 (3) | C27—C28—C38 | 118.8 (4) |
C11—C7—C6 | 108.5 (3) | C30—C29—C28 | 119.6 (4) |
N2—C8—C9 | 122.3 (4) | C30—C29—H29 | 120.2 |
N2—C8—C32 | 116.3 (3) | C28—C29—H29 | 120.2 |
C9—C8—C32 | 121.4 (4) | C29—C30—C31 | 120.5 (4) |
C10—C9—C8 | 120.8 (4) | C29—C30—H30 | 119.8 |
C10—C9—H9 | 119.6 | C31—C30—H30 | 119.8 |
C8—C9—H9 | 119.6 | C26—C31—C30 | 120.9 (4) |
C11—C10—C9 | 117.0 (4) | C26—C31—H31 | 119.6 |
C11—C10—H10 | 121.5 | C30—C31—H31 | 119.6 |
C9—C10—H10 | 121.5 | C37—C32—C33 | 117.8 (4) |
C7—C11—C10 | 118.5 (4) | C37—C32—C8 | 122.1 (4) |
C7—C11—C1 | 111.5 (3) | C33—C32—C8 | 120.0 (4) |
C10—C11—C1 | 130.0 (4) | C34—C33—C32 | 120.7 (4) |
O1—C12—C13 | 124.3 (4) | C34—C33—H33 | 119.6 |
O1—C12—C17 | 115.9 (4) | C32—C33—H33 | 119.6 |
C13—C12—C17 | 119.7 (4) | C35—C34—C33 | 121.0 (4) |
C12—C13—C14 | 119.8 (4) | C35—C34—C39 | 119.4 (4) |
C12—C13—H13 | 120.1 | C33—C34—C39 | 119.7 (4) |
C14—C13—H13 | 120.1 | C36—C35—C34 | 118.8 (4) |
C13—C14—C15 | 121.8 (4) | C36—C35—H35 | 120.6 |
C13—C14—H14 | 119.1 | C34—C35—H35 | 120.6 |
C15—C14—H14 | 119.1 | C35—C36—C37 | 121.0 (4) |
C14—C15—C16 | 116.8 (4) | C35—C36—H36 | 119.5 |
C14—C15—C1 | 124.1 (3) | C37—C36—H36 | 119.5 |
C16—C15—C1 | 119.1 (3) | C36—C37—C32 | 120.7 (4) |
C17—C16—C15 | 121.3 (4) | C36—C37—H37 | 119.7 |
C17—C16—H16 | 119.3 | C32—C37—H37 | 119.7 |
C15—C16—H16 | 119.3 | F2—C38—F1 | 112.1 (8) |
C16—C17—C12 | 120.3 (4) | F2—C38—F3 | 101.7 (7) |
C16—C17—H17 | 119.8 | F1—C38—F3 | 100.5 (8) |
C12—C17—H17 | 119.8 | F9—C38—C28 | 119.8 (10) |
O2—C18—C23 | 124.9 (4) | F2—C38—C28 | 116.6 (7) |
O2—C18—C19 | 115.2 (4) | F1—C38—C28 | 112.6 (6) |
C23—C18—C19 | 119.9 (4) | F3—C38—C28 | 111.6 (7) |
C20—C19—C18 | 119.9 (4) | C28—C38—F7 | 107.0 (10) |
C20—C19—H19 | 120.1 | F6—C39—F5 | 110.7 (7) |
C18—C19—H19 | 120.1 | F6—C39—F4 | 109.0 (8) |
C19—C20—C21 | 121.3 (4) | F5—C39—F4 | 98.3 (7) |
C19—C20—H20 | 119.3 | F11—C39—C34 | 115.1 (7) |
C21—C20—H20 | 119.3 | F6—C39—C34 | 115.4 (5) |
C22—C21—C20 | 118.2 (4) | F5—C39—C34 | 111.3 (6) |
C22—C21—C1 | 122.9 (4) | F10—C39—C34 | 108.1 (9) |
C20—C21—C1 | 118.8 (3) | F4—C39—C34 | 110.9 (5) |
C21—C22—C23 | 121.3 (4) | C6—N1—C5 | 115.9 (3) |
C21—C22—H22 | 119.4 | C7—N2—C8 | 115.7 (3) |
C23—C22—H22 | 119.4 | C12—O1—C24 | 116.8 (3) |
C18—C23—C22 | 119.4 (4) | C18—O2—C25 | 117.4 (4) |
C15—C1—C2—C3 | −56.1 (6) | C11—C1—C21—C20 | 168.0 (3) |
C11—C1—C2—C3 | −176.8 (4) | C2—C1—C21—C20 | −82.8 (4) |
C21—C1—C2—C3 | 65.9 (5) | C20—C21—C22—C23 | 0.6 (6) |
C15—C1—C2—C6 | 127.9 (4) | C1—C21—C22—C23 | −176.0 (4) |
C11—C1—C2—C6 | 7.2 (4) | O2—C18—C23—C22 | 177.3 (4) |
C21—C1—C2—C6 | −110.1 (4) | C19—C18—C23—C22 | −1.3 (6) |
C6—C2—C3—C4 | −1.7 (6) | C21—C22—C23—C18 | 0.4 (6) |
C1—C2—C3—C4 | −177.5 (4) | N1—C5—C26—C31 | 59.9 (5) |
C2—C3—C4—C5 | 2.8 (6) | C4—C5—C26—C31 | −120.1 (5) |
C3—C4—C5—N1 | −2.0 (6) | N1—C5—C26—C27 | −120.8 (4) |
C3—C4—C5—C26 | 178.0 (4) | C4—C5—C26—C27 | 59.2 (6) |
C3—C2—C6—N1 | −0.3 (6) | C31—C26—C27—C28 | −1.4 (6) |
C1—C2—C6—N1 | 176.3 (4) | C5—C26—C27—C28 | 179.3 (4) |
C3—C2—C6—C7 | 178.5 (3) | C26—C27—C28—C29 | 2.0 (7) |
C1—C2—C6—C7 | −4.9 (4) | C26—C27—C28—C38 | −176.5 (5) |
N1—C6—C7—N2 | −0.7 (6) | C27—C28—C29—C30 | −1.3 (7) |
C2—C6—C7—N2 | −179.5 (4) | C38—C28—C29—C30 | 177.2 (5) |
N1—C6—C7—C11 | 178.8 (4) | C28—C29—C30—C31 | 0.0 (8) |
C2—C6—C7—C11 | 0.0 (4) | C27—C26—C31—C30 | 0.1 (6) |
N2—C8—C9—C10 | 2.4 (6) | C5—C26—C31—C30 | 179.4 (4) |
C32—C8—C9—C10 | −175.5 (4) | C29—C30—C31—C26 | 0.6 (7) |
C8—C9—C10—C11 | 0.3 (6) | N2—C8—C32—C37 | 165.7 (4) |
N2—C7—C11—C10 | 3.3 (6) | C9—C8—C32—C37 | −16.2 (6) |
C6—C7—C11—C10 | −176.2 (3) | N2—C8—C32—C33 | −15.8 (6) |
N2—C7—C11—C1 | −175.6 (3) | C9—C8—C32—C33 | 162.3 (4) |
C6—C7—C11—C1 | 4.9 (4) | C37—C32—C33—C34 | 1.0 (6) |
C9—C10—C11—C7 | −3.0 (6) | C8—C32—C33—C34 | −177.6 (4) |
C9—C10—C11—C1 | 175.7 (4) | C32—C33—C34—C35 | −0.1 (7) |
C15—C1—C11—C7 | −130.0 (3) | C32—C33—C34—C39 | 179.4 (4) |
C2—C1—C11—C7 | −7.3 (4) | C33—C34—C35—C36 | −1.0 (7) |
C21—C1—C11—C7 | 106.6 (4) | C39—C34—C35—C36 | 179.4 (5) |
C15—C1—C11—C10 | 51.2 (5) | C34—C35—C36—C37 | 1.3 (8) |
C2—C1—C11—C10 | 174.0 (4) | C35—C36—C37—C32 | −0.4 (8) |
C21—C1—C11—C10 | −72.1 (5) | C33—C32—C37—C36 | −0.7 (7) |
O1—C12—C13—C14 | −179.1 (4) | C8—C32—C37—C36 | 177.8 (4) |
C17—C12—C13—C14 | 2.6 (6) | C29—C28—C38—F2 | 18.5 (10) |
C12—C13—C14—C15 | 0.0 (6) | C27—C28—C38—F2 | −163.0 (8) |
C13—C14—C15—C16 | −1.2 (6) | C29—C28—C38—F1 | 150.2 (9) |
C13—C14—C15—C1 | 176.3 (4) | C27—C28—C38—F1 | −31.3 (10) |
C11—C1—C15—C14 | 107.7 (4) | C29—C28—C38—F3 | −97.7 (8) |
C2—C1—C15—C14 | −6.1 (6) | C27—C28—C38—F3 | 80.8 (8) |
C21—C1—C15—C14 | −127.2 (4) | C35—C34—C39—F6 | 91.0 (10) |
C11—C1—C15—C16 | −74.9 (5) | C33—C34—C39—F6 | −88.6 (10) |
C2—C1—C15—C16 | 171.3 (4) | C35—C34—C39—F5 | −36.2 (7) |
C21—C1—C15—C16 | 50.2 (5) | C33—C34—C39—F5 | 144.2 (6) |
C14—C15—C16—C17 | 0.0 (6) | C35—C34—C39—F4 | −144.6 (8) |
C1—C15—C16—C17 | −177.7 (4) | C33—C34—C39—F4 | 35.9 (10) |
C15—C16—C17—C12 | 2.6 (7) | C2—C6—N1—C5 | 1.1 (6) |
O1—C12—C17—C16 | 177.7 (4) | C7—C6—N1—C5 | −177.5 (3) |
C13—C12—C17—C16 | −3.8 (7) | C4—C5—N1—C6 | 0.0 (5) |
O2—C18—C19—C20 | −177.6 (4) | C26—C5—N1—C6 | −180.0 (3) |
C23—C18—C19—C20 | 1.2 (6) | C11—C7—N2—C8 | −0.7 (6) |
C18—C19—C20—C21 | −0.1 (6) | C6—C7—N2—C8 | 178.8 (3) |
C19—C20—C21—C22 | −0.8 (6) | C9—C8—N2—C7 | −2.2 (6) |
C19—C20—C21—C1 | 176.0 (4) | C32—C8—N2—C7 | 175.8 (3) |
C15—C1—C21—C22 | −140.5 (4) | C13—C12—O1—C24 | 24.3 (6) |
C11—C1—C21—C22 | −15.4 (5) | C17—C12—O1—C24 | −157.3 (4) |
C2—C1—C21—C22 | 93.8 (4) | C23—C18—O2—C25 | 5.1 (6) |
C15—C1—C21—C20 | 42.9 (5) | C19—C18—O2—C25 | −176.2 (4) |
Symmetry codes: (i) −x+1/2, −y, z+1/2; (ii) −x−1/2, −y, z+1/2. |
Experimental details
Crystal data | |
Chemical formula | C39H26F6N2O2 |
Mr | 668.62 |
Crystal system, space group | Orthorhombic, P212121 |
Temperature (K) | 173 |
a, b, c (Å) | 9.283 (2), 12.357 (3), 26.941 (6) |
V (Å3) | 3090.4 (12) |
Z | 4 |
Radiation type | Mo Kα |
µ (mm−1) | 0.11 |
Crystal size (mm) | 0.38 × 0.30 × 0.20 |
Data collection | |
Diffractometer | Rigaku/MSC Mercury CCD diffractometer |
Absorption correction | – |
No. of measured, independent and observed [I > 2σ(I)] reflections | 20599, 3171, 2849 |
Rint | 0.040 |
(sin θ/λ)max (Å−1) | 0.649 |
Refinement | |
R[F2 > 2σ(F2)], wR(F2), S | 0.056, 0.146, 1.05 |
No. of reflections | 3171 |
No. of parameters | 498 |
No. of restraints | 24 |
H-atom treatment | H-atom parameters constrained |
Δρmax, Δρmin (e Å−3) | 0.28, −0.25 |
Computer programs: CrystalClear (Rigaku/MSC, 2001), SHELXS97 (Sheldrick, 2008), SHELXL97 (Sheldrick, 2008), PLATON (Spek, 2003) and Mercury (Macrae et al., 2006), WinGX (Farrugia, 1999).
Acknowledgements
This work was supported by a Grant-in-Aid for Scientific Research (grant No. 19550034) from the Ministry of Education, Culture, Sports, Science and Technology, Japan. The authors thank the Instrument Center of the Institute for Molecular Science for the X-ray structure analysis.
References
Farrugia, L. J. (1999). J. Appl. Cryst. 32, 837–838. CrossRef CAS IUCr Journals Google Scholar
Macrae, C. F., Edgington, P. R., McCabe, P., Pidcock, E., Shields, G. P., Taylor, R., Towler, M. & van de Streek, J. (2006). J. Appl. Cryst. 39, 453–457. Web of Science CrossRef CAS IUCr Journals Google Scholar
Ono, K., Nagano, K., Suto, M. & Saito, K. (2007). Heterocycles, 71, 799–804. CrossRef CAS Google Scholar
Ono, K. & Saito, K. (2008). Heterocycles, 75, 2381–2413. CrossRef CAS Google Scholar
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Sheldrick, G. M. (2008). Acta Cryst. A64, 112–122. Web of Science CrossRef CAS IUCr Journals Google Scholar
Spek, A. L. (2003). J. Appl. Cryst. 36, 7–13. Web of Science CrossRef CAS IUCr Journals Google Scholar
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, (I), was prepared as a new electron-transporting material in the study of organic electroluminescent (EL) devices (Ono et al., 2007). A differential scanning calorimetry (DSC) study of (I) revealed novel thermal behavior (Fig. 1). The first heating profile showed a first melting point of 477.4 K and a crystallization temperature of 479.7 K. After cooling, the second heating profile exhibited a second melting point of 506.5 K. Furthermore, the third heating profile displayed only a glass transition temperature of 369.3 K. The first melting point can be attributed to a phase transition arising from rotation of two trifluoromethyl groups.
The molecular structure of (I) is shown in Fig. 2. The 4,5-diazafluorene (cyclopenta[2,1-b:3,4-b']dipyridine) ring system is almost planar with an r.m.s. deviation of 0.052Å. The dihedral angles between the 4,5-diazafluorene ring system and the pendant trifluoromethylphenyl groups are 19.5 (1) ° and 62.3 (1) °. Both the trifluoromethyl groups are disordered over two sites with occupancy factors of 0.660 (17):0.340 (17). The crystal structure is characterized by an arrangement of the molecules along the c axis (Fig. 3). In the molecular arrangement, significant π–π overlapping between the 4,5-diazafluorene moieties is not found, although it was observed in the crystal of a 2,8-diphenyl derivative (Ono & Saito, 2008). Three short F···O contacts between 2.80 (3) and 2.95 (1) Å are observed in the crystal of (I).