organic compounds
1-(4-Methylphenyl)-2-[4-(trifluoromethyl)phenyl]-1H-phenanthro[9,10-d]imidazole
aDepartment of Physics, Shri Angalamman College of Engineering and Technology, Siruganoor, Tiruchirappalli 621 105, India, bAnnamalai University, Annamalainagar, Chidambaram, India, cDepartment of Chemistry, Urumu Dhanalakshmi College, Tiruchirappalli, Tamilnadu, India, and dDepartment of Physics, Urumu Dhanalakshmi College, Tiruchirappalli, Tamilnadu, India
*Correspondence e-mail: sakthi2udc@gmail.com
In the title compound, C29H19F3N2, the tetracyclic ring system is essentially planar [maximum deviation from the best plane = 0.076 (1) Å] and makes dihedral angles of 78.10 (5) and 33.71 (4)° with the methylphenyl and fluorophenyl rings, respectively. An intramolecular C—H⋯π interaction occurs. In the crystal, pairs of C—H⋯π interactions link inversion-related molecules.
Related literature
For background to organic electroluminescent materials and devices, see: Adachi et al. (1995); Loy et al. (2002) and for the photophysical, electrochemical and mobility properties of phenanthroimidazole derivatives, see: Yuan et al. (2011). For applications of imidazole and phenanthrolene derivatives, see: Moylan et al. (1993); Bu et al. (1996); Wang et al. (2002).
Experimental
Crystal data
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Data collection: APEX2 (Bruker, 2008); cell APEX2 and SAINT (Bruker, 2008); data reduction: SAINT; program(s) used to solve structure: SHELXS97 (Sheldrick, 2008); program(s) used to refine structure: SHELXL97 (Sheldrick, 2008); molecular graphics: PLATON (Spek, 2009); software used to prepare material for publication: PLATON.
Supporting information
https://doi.org/10.1107/S1600536813009471/go2084sup1.cif
contains datablocks global, I. DOI:Structure factors: contains datablock I. DOI: https://doi.org/10.1107/S1600536813009471/go2084Isup2.hkl
A mixture of phenanthrene-9,10-dione (1.0 g, 4.8 mmol), ammonium acetate (1.48 g,19.2 mmol), 4-trifluoromethylbenzaldehyde (0.83 g, 4.8 mmol) and 4-methyl aniline (2.56 g, 24 mmol) were refluxed in ethanol (20 ml) at 80°C. The reaction was monitored by TLC and purified by column chromotography using petroleum ether: ethyl acetate (9:1) as the
Yield: 0.69 g (52%). The compound was dissolved in dimethyl sulfoxide and allowed and slow evaporation produced crystal suitable for X-ray diffraction.All the hydrogen atoms were geometrically fixed and allowed to ride on their parent atoms with C—H = 0.93 - 0.96 Å and Uiso(H) = 1.3Ueq(C).
The methyl group attached to atom C28 was refined as 6 half hydrogen atoms since a diiference map did not reveal any distinct peaks.
A difference map in the plane of the F atoms of the CF3 revealed 3 distinct peaks with evidence of oscillation around the C-C bond connecting the CF3 group to the main molecule. The highest difference map peaks were located in the vicinity of the F atoms. Attempts were made to obtain a disordered model but none were satisfactory. These distinct maxima in the difference map were used as the starting positions of F atoms despite problem with thermal parameters during th
refinement.The crystal was a non-merohedral twin.
was carried out using BASF and HKLF 5. The twin data was obtained from PLATON TwinRotMat function, (Spek, 2009).The twin component ratio is 0.961/0.039.
The optical and conductive properties of the conjugated materials containing imidazole and phenanthroline heterocycles have found in many applications (Moylan et al.,1993, Bu et al.,1996, Wang et al.,2002).
The 1H-phenanthro[9,10 - d]imidazole is a promising building block in the field of molecular materials. It has many desirable properties such as good heat stability, ease of introduction into molecules used as chromophores, fluorescent in nature and readily tunable absorption wavelengths.
The study of organic electroluminescent materials and devices (Loy et al., 2002, Adachi et al., 1995) is therefore of great importance. The photophysical, electrochemical and mobility properties of phenanthroimidazole derivatives have been reported (Yuan et al., 2011).
As our research group deals with organic light emitting devices, we are interested in the title compound (I), Figure 1, as a ligand for inorganic complexes.
The dihedral angle between the phenanthrene moiety and the flourobenzene ring is 33.71 (4)° and to that of the benzene ring of methylphenyl is 78.10 (5)°. The dihedral angle between methylphenyl and benzene ring of trifluorobenzene ring is 72.60 (5)°. The maximum deviation of C12 atom from the mean plane of phenanthrotetracyclic system is 0.076 (1)°. The π interactions. One of these, C12–H12···Cg1 is an intramolecular interaction. The other, C26–H26···Cg2 links the molecules into centrosymmetically related pairs across the centre-of-symmetry at (0.5, 0, 0.5), Figure 2. Cg1 and Cg2 are the centres of gravity of the benzene rings C15–C20 and C8–C13 respectively.
is stabilized by C—H···For background to organic electroluminescent materials and devices, see: Adachi et al. (1995); Loy et al. (2002) and for the photophysical, electrochemical and mobility properties of phenanthroimidazole derivatives, see: Yuan et al. (2011). For applications of imidazole and phenanthrolene derivatives, see: Moylan et al. (1993); Bu et al. (1996); Wang et al. (2002).
Data collection: APEX2 (Bruker, 2008); cell
APEX2 and SAINT (Bruker, 2008); data reduction: SAINT (Bruker, 2008); program(s) used to solve structure: SHELXS97 (Sheldrick, 2008); program(s) used to refine structure: SHELXL97 (Sheldrick, 2008); molecular graphics: PLATON (Spek, 2009); software used to prepare material for publication: PLATON (Spek, 2009).Fig. 1. The molecular structure and labelling scheme for (I) with displacement ellipsoids for non-H atoms are drawn at the 30% probability level. | |
Fig. 2. A packing diagram for (I) showing the intramolecular interaction and the centrosymmetrically linked pair of molecules. Dashed lines indicate C—H···π interactions. Hydrogen atoms not involved in the interactions are omitted for clarity. |
C29H19F3N2 | Z = 2 |
Mr = 452.46 | F(000) = 468 |
Triclinic, P1 | Dx = 1.332 Mg m−3 |
Hall symbol: -P 1 | Mo Kα radiation, λ = 0.71073 Å |
a = 8.113 (3) Å | Cell parameters from 6741 reflections |
b = 11.733 (5) Å | θ = 2.6–27.5° |
c = 12.713 (2) Å | µ = 0.10 mm−1 |
α = 76.397 (1)° | T = 293 K |
β = 73.490 (2)° | Block, colourless |
γ = 86.185 (5)° | 0.35 × 0.30 × 0.25 mm |
V = 1127.7 (7) Å3 |
Bruker Kappa APEXII CCD diffractometer | 22540 independent reflections |
Radiation source: Rotating Anode | 14735 reflections with I > 2σ(I) |
Graphite monochromator | Rint = 0.000 |
Detector resolution: 18.4 pixels mm-1 | θmax = 27.6°, θmin = 2.6° |
ω and φ scan | h = −10→10 |
Absorption correction: multi-scan (SADABS; Bruker, 2008) | k = −15→14 |
Tmin = 0.967, Tmax = 0.977 | l = −16→16 |
22540 measured 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)] = 0.068 | H-atom parameters constrained |
wR(F2) = 0.236 | w = 1/[σ2(Fo2) + (0.1257P)2 + 0.462P] where P = (Fo2 + 2Fc2)/3 |
S = 1.04 | (Δ/σ)max < 0.001 |
22540 reflections | Δρmax = 0.72 e Å−3 |
310 parameters | Δρmin = −0.38 e Å−3 |
0 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: 0.022 (2) |
C29H19F3N2 | γ = 86.185 (5)° |
Mr = 452.46 | V = 1127.7 (7) Å3 |
Triclinic, P1 | Z = 2 |
a = 8.113 (3) Å | Mo Kα radiation |
b = 11.733 (5) Å | µ = 0.10 mm−1 |
c = 12.713 (2) Å | T = 293 K |
α = 76.397 (1)° | 0.35 × 0.30 × 0.25 mm |
β = 73.490 (2)° |
Bruker Kappa APEXII CCD diffractometer | 22540 independent reflections |
Absorption correction: multi-scan (SADABS; Bruker, 2008) | 14735 reflections with I > 2σ(I) |
Tmin = 0.967, Tmax = 0.977 | Rint = 0.000 |
22540 measured reflections |
R[F2 > 2σ(F2)] = 0.068 | 0 restraints |
wR(F2) = 0.236 | H-atom parameters constrained |
S = 1.04 | Δρmax = 0.72 e Å−3 |
22540 reflections | Δρmin = −0.38 e Å−3 |
310 parameters |
Geometry. All esds (except the esd in the dihedral angle between two l.s. planes) are estimated using the full covariance matrix. The cell esds are taken into account individually in the estimation of esds in distances, angles and torsion angles; correlations between esds in cell parameters are only used when they are defined by crystal symmetry. An approximate (isotropic) treatment of cell esds is used for estimating esds 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 | Occ. (<1) | |
N1 | 0.20865 (14) | 0.08289 (9) | 0.54048 (8) | 0.0456 (3) | |
N2 | 0.30849 (14) | −0.01502 (9) | 0.40358 (9) | 0.0482 (3) | |
F1 | 0.02200 (19) | −0.51343 (12) | 0.86107 (14) | 0.1730 (7) | |
F2 | 0.2485 (3) | −0.56334 (10) | 0.75953 (12) | 0.2022 (10) | |
F3 | 0.2496 (2) | −0.49122 (12) | 0.88779 (13) | 0.1697 (7) | |
C1 | 0.30932 (17) | 0.10375 (11) | 0.35746 (11) | 0.0464 (3) | |
C2 | 0.36035 (17) | 0.15914 (12) | 0.24009 (11) | 0.0486 (3) | |
C3 | 0.4141 (2) | 0.09473 (13) | 0.15691 (11) | 0.0596 (4) | |
H3 | 0.4196 | 0.0134 | 0.1774 | 0.071* | |
C4 | 0.4590 (2) | 0.15053 (15) | 0.04533 (12) | 0.0721 (5) | |
H4 | 0.4975 | 0.1074 | −0.0098 | 0.086* | |
C5 | 0.4467 (2) | 0.27171 (15) | 0.01490 (13) | 0.0788 (5) | |
H5 | 0.4732 | 0.3096 | −0.0609 | 0.095* | |
C6 | 0.3962 (2) | 0.33553 (14) | 0.09526 (13) | 0.0706 (5) | |
H6 | 0.3908 | 0.4168 | 0.0731 | 0.085* | |
C7 | 0.35215 (18) | 0.28235 (12) | 0.21037 (12) | 0.0545 (4) | |
C8 | 0.29676 (19) | 0.34923 (12) | 0.29833 (13) | 0.0565 (4) | |
C9 | 0.2970 (2) | 0.47253 (13) | 0.27083 (16) | 0.0762 (5) | |
H9 | 0.3272 | 0.5118 | 0.1954 | 0.091* | |
C10 | 0.2539 (3) | 0.53619 (14) | 0.35226 (17) | 0.0856 (6) | |
H10 | 0.2552 | 0.6177 | 0.3318 | 0.103* | |
C11 | 0.2086 (2) | 0.48010 (15) | 0.46402 (17) | 0.0793 (5) | |
H11 | 0.1806 | 0.5240 | 0.5188 | 0.095* | |
C12 | 0.2043 (2) | 0.36048 (13) | 0.49576 (14) | 0.0639 (4) | |
H12 | 0.1731 | 0.3238 | 0.5719 | 0.077* | |
C13 | 0.24672 (18) | 0.29210 (11) | 0.41417 (12) | 0.0518 (4) | |
C14 | 0.25034 (17) | 0.16657 (11) | 0.43936 (11) | 0.0461 (3) | |
C15 | 0.14817 (18) | 0.10502 (11) | 0.65183 (11) | 0.0470 (3) | |
C16 | −0.02091 (18) | 0.13450 (12) | 0.69267 (12) | 0.0570 (4) | |
H16 | −0.0972 | 0.1383 | 0.6495 | 0.068* | |
C17 | −0.0763 (2) | 0.15835 (13) | 0.79825 (13) | 0.0644 (4) | |
H17 | −0.1906 | 0.1789 | 0.8255 | 0.077* | |
C18 | 0.0345 (2) | 0.15247 (12) | 0.86492 (12) | 0.0600 (4) | |
C19 | 0.2023 (2) | 0.12097 (14) | 0.82111 (12) | 0.0675 (4) | |
H19 | 0.2790 | 0.1155 | 0.8643 | 0.081* | |
C20 | 0.26054 (19) | 0.09732 (12) | 0.71578 (11) | 0.0555 (4) | |
H20 | 0.3746 | 0.0764 | 0.6884 | 0.067* | |
C21 | 0.24755 (16) | −0.02465 (11) | 0.51342 (10) | 0.0445 (3) | |
C22 | 0.22638 (17) | −0.13928 (11) | 0.59353 (10) | 0.0454 (3) | |
C23 | 0.09865 (19) | −0.16471 (12) | 0.69527 (12) | 0.0555 (4) | |
H23 | 0.0233 | −0.1060 | 0.7173 | 0.067* | |
C24 | 0.0823 (2) | −0.27559 (13) | 0.76375 (12) | 0.0591 (4) | |
H24 | −0.0045 | −0.2918 | 0.8312 | 0.071* | |
C25 | 0.1960 (2) | −0.36339 (13) | 0.73183 (12) | 0.0576 (4) | |
C26 | 0.3215 (2) | −0.33900 (12) | 0.63148 (12) | 0.0586 (4) | |
H26 | 0.3970 | −0.3978 | 0.6098 | 0.070* | |
C27 | 0.33689 (18) | −0.22880 (11) | 0.56271 (11) | 0.0529 (4) | |
H27 | 0.4224 | −0.2138 | 0.4946 | 0.063* | |
C28 | −0.0263 (3) | 0.18059 (16) | 0.97975 (13) | 0.0901 (6) | |
H28A | −0.1454 | 0.2025 | 0.9946 | 0.135* | 0.50 |
H28B | 0.0403 | 0.2443 | 0.9817 | 0.135* | 0.50 |
H28C | −0.0124 | 0.1129 | 1.0360 | 0.135* | 0.50 |
H28D | 0.0671 | 0.1706 | 1.0135 | 0.135* | 0.50 |
H28E | −0.1186 | 0.1288 | 1.0265 | 0.135* | 0.50 |
H28F | −0.0659 | 0.2603 | 0.9722 | 0.135* | 0.50 |
C29 | 0.1800 (3) | −0.48202 (16) | 0.80656 (16) | 0.0830 (5) |
U11 | U22 | U33 | U12 | U13 | U23 | |
N1 | 0.0526 (7) | 0.0431 (6) | 0.0404 (6) | 0.0026 (5) | −0.0128 (5) | −0.0092 (5) |
N2 | 0.0554 (7) | 0.0463 (7) | 0.0405 (6) | 0.0003 (5) | −0.0133 (5) | −0.0057 (5) |
F1 | 0.1158 (11) | 0.1110 (11) | 0.2194 (16) | −0.0340 (9) | −0.0277 (11) | 0.0896 (10) |
F2 | 0.367 (3) | 0.0503 (7) | 0.1142 (11) | 0.0110 (11) | 0.0252 (13) | 0.0111 (7) |
F3 | 0.2296 (18) | 0.1301 (11) | 0.1480 (12) | −0.0230 (11) | −0.1189 (13) | 0.0590 (10) |
C1 | 0.0484 (8) | 0.0454 (8) | 0.0450 (8) | 0.0007 (6) | −0.0172 (6) | −0.0045 (6) |
C2 | 0.0484 (8) | 0.0518 (8) | 0.0429 (8) | −0.0007 (6) | −0.0156 (6) | −0.0015 (6) |
C3 | 0.0719 (10) | 0.0596 (9) | 0.0441 (8) | 0.0011 (8) | −0.0168 (7) | −0.0050 (7) |
C4 | 0.0875 (12) | 0.0794 (12) | 0.0426 (9) | −0.0001 (9) | −0.0152 (8) | −0.0044 (8) |
C5 | 0.0981 (13) | 0.0792 (12) | 0.0445 (9) | −0.0052 (10) | −0.0149 (9) | 0.0097 (9) |
C6 | 0.0820 (12) | 0.0586 (10) | 0.0581 (10) | −0.0039 (9) | −0.0176 (9) | 0.0110 (8) |
C7 | 0.0524 (8) | 0.0528 (9) | 0.0529 (9) | −0.0007 (7) | −0.0184 (7) | 0.0034 (7) |
C8 | 0.0567 (9) | 0.0459 (8) | 0.0637 (10) | 0.0038 (7) | −0.0212 (7) | −0.0019 (7) |
C9 | 0.0920 (13) | 0.0489 (9) | 0.0813 (12) | 0.0034 (9) | −0.0274 (10) | 0.0008 (9) |
C10 | 0.1043 (15) | 0.0442 (9) | 0.1030 (15) | 0.0082 (9) | −0.0270 (12) | −0.0106 (10) |
C11 | 0.0918 (13) | 0.0540 (10) | 0.0950 (14) | 0.0075 (9) | −0.0260 (11) | −0.0248 (10) |
C12 | 0.0709 (10) | 0.0519 (9) | 0.0712 (10) | 0.0038 (8) | −0.0226 (8) | −0.0158 (8) |
C13 | 0.0527 (8) | 0.0455 (8) | 0.0589 (9) | 0.0025 (6) | −0.0205 (7) | −0.0095 (7) |
C14 | 0.0468 (8) | 0.0449 (8) | 0.0466 (8) | 0.0016 (6) | −0.0168 (6) | −0.0063 (6) |
C15 | 0.0560 (8) | 0.0429 (7) | 0.0425 (7) | −0.0014 (6) | −0.0140 (6) | −0.0096 (6) |
C16 | 0.0530 (9) | 0.0649 (10) | 0.0577 (9) | 0.0030 (7) | −0.0184 (7) | −0.0197 (8) |
C17 | 0.0598 (10) | 0.0636 (10) | 0.0640 (10) | 0.0012 (8) | −0.0041 (8) | −0.0196 (8) |
C18 | 0.0795 (11) | 0.0528 (9) | 0.0442 (8) | −0.0029 (8) | −0.0106 (8) | −0.0116 (7) |
C19 | 0.0757 (11) | 0.0799 (11) | 0.0527 (9) | 0.0025 (9) | −0.0278 (8) | −0.0149 (8) |
C20 | 0.0553 (9) | 0.0637 (9) | 0.0485 (8) | 0.0041 (7) | −0.0178 (7) | −0.0115 (7) |
C21 | 0.0468 (8) | 0.0444 (8) | 0.0416 (8) | −0.0004 (6) | −0.0135 (6) | −0.0064 (6) |
C22 | 0.0507 (8) | 0.0443 (8) | 0.0421 (7) | −0.0025 (6) | −0.0162 (6) | −0.0066 (6) |
C23 | 0.0559 (9) | 0.0547 (9) | 0.0510 (8) | 0.0014 (7) | −0.0078 (7) | −0.0114 (7) |
C24 | 0.0620 (9) | 0.0619 (10) | 0.0449 (8) | −0.0093 (8) | −0.0062 (7) | −0.0037 (7) |
C25 | 0.0696 (10) | 0.0521 (9) | 0.0487 (9) | −0.0115 (8) | −0.0211 (8) | 0.0024 (7) |
C26 | 0.0629 (9) | 0.0486 (9) | 0.0598 (9) | 0.0036 (7) | −0.0161 (8) | −0.0057 (7) |
C27 | 0.0543 (9) | 0.0500 (8) | 0.0476 (8) | −0.0019 (7) | −0.0085 (7) | −0.0043 (7) |
C28 | 0.1210 (16) | 0.0905 (13) | 0.0543 (10) | −0.0028 (11) | −0.0119 (10) | −0.0219 (9) |
C29 | 0.1007 (15) | 0.0612 (12) | 0.0729 (12) | −0.0114 (11) | −0.0208 (11) | 0.0111 (10) |
N1—C21 | 1.3781 (17) | C13—C14 | 1.4319 (18) |
N1—C14 | 1.3909 (16) | C15—C20 | 1.3698 (18) |
N1—C15 | 1.4398 (16) | C15—C16 | 1.3739 (19) |
N2—C21 | 1.3222 (15) | C16—C17 | 1.3780 (19) |
N2—C1 | 1.3785 (16) | C16—H16 | 0.9300 |
F1—C29 | 1.303 (2) | C17—C18 | 1.388 (2) |
F2—C29 | 1.259 (2) | C17—H17 | 0.9300 |
F3—C29 | 1.291 (2) | C18—C19 | 1.379 (2) |
C1—C14 | 1.3738 (17) | C18—C28 | 1.510 (2) |
C1—C2 | 1.4312 (17) | C19—C20 | 1.3751 (19) |
C2—C3 | 1.3963 (19) | C19—H19 | 0.9300 |
C2—C7 | 1.4077 (19) | C20—H20 | 0.9300 |
C3—C4 | 1.3692 (19) | C21—C22 | 1.4706 (18) |
C3—H3 | 0.9300 | C22—C27 | 1.3889 (18) |
C4—C5 | 1.388 (2) | C22—C23 | 1.3906 (18) |
C4—H4 | 0.9300 | C23—C24 | 1.3757 (19) |
C5—C6 | 1.361 (2) | C23—H23 | 0.9300 |
C5—H5 | 0.9300 | C24—C25 | 1.391 (2) |
C6—C7 | 1.4006 (19) | C24—H24 | 0.9300 |
C6—H6 | 0.9300 | C25—C26 | 1.369 (2) |
C7—C8 | 1.466 (2) | C25—C29 | 1.479 (2) |
C8—C9 | 1.406 (2) | C26—C27 | 1.3710 (18) |
C8—C13 | 1.419 (2) | C26—H26 | 0.9300 |
C9—C10 | 1.369 (2) | C27—H27 | 0.9300 |
C9—H9 | 0.9300 | C28—H28A | 0.9600 |
C10—C11 | 1.372 (2) | C28—H28B | 0.9600 |
C10—H10 | 0.9300 | C28—H28C | 0.9600 |
C11—C12 | 1.366 (2) | C28—H28D | 0.9600 |
C11—H11 | 0.9300 | C28—H28E | 0.9600 |
C12—C13 | 1.4107 (19) | C28—H28F | 0.9600 |
C12—H12 | 0.9300 | ||
C21—N1—C14 | 106.48 (10) | C19—C18—C28 | 121.62 (16) |
C21—N1—C15 | 126.81 (10) | C17—C18—C28 | 121.34 (16) |
C14—N1—C15 | 126.58 (10) | C20—C19—C18 | 122.35 (14) |
C21—N2—C1 | 104.85 (10) | C20—C19—H19 | 118.8 |
C14—C1—N2 | 111.39 (11) | C18—C19—H19 | 118.8 |
C14—C1—C2 | 122.18 (12) | C15—C20—C19 | 119.07 (14) |
N2—C1—C2 | 126.42 (12) | C15—C20—H20 | 120.5 |
C3—C2—C7 | 120.44 (12) | C19—C20—H20 | 120.5 |
C3—C2—C1 | 122.02 (13) | N2—C21—N1 | 112.13 (11) |
C7—C2—C1 | 117.53 (13) | N2—C21—C22 | 121.79 (11) |
C4—C3—C2 | 120.45 (15) | N1—C21—C22 | 126.08 (11) |
C4—C3—H3 | 119.8 | C27—C22—C23 | 118.28 (13) |
C2—C3—H3 | 119.8 | C27—C22—C21 | 117.48 (12) |
C3—C4—C5 | 119.65 (16) | C23—C22—C21 | 124.18 (12) |
C3—C4—H4 | 120.2 | C24—C23—C22 | 120.89 (13) |
C5—C4—H4 | 120.2 | C24—C23—H23 | 119.6 |
C6—C5—C4 | 120.40 (14) | C22—C23—H23 | 119.6 |
C6—C5—H5 | 119.8 | C23—C24—C25 | 119.79 (13) |
C4—C5—H5 | 119.8 | C23—C24—H24 | 120.1 |
C5—C6—C7 | 121.88 (15) | C25—C24—H24 | 120.1 |
C5—C6—H6 | 119.1 | C26—C25—C24 | 119.57 (13) |
C7—C6—H6 | 119.1 | C26—C25—C29 | 120.74 (15) |
C6—C7—C2 | 117.13 (14) | C24—C25—C29 | 119.69 (15) |
C6—C7—C8 | 122.83 (14) | C25—C26—C27 | 120.67 (14) |
C2—C7—C8 | 120.03 (12) | C25—C26—H26 | 119.7 |
C9—C8—C13 | 117.68 (15) | C27—C26—H26 | 119.7 |
C9—C8—C7 | 121.00 (14) | C26—C27—C22 | 120.79 (13) |
C13—C8—C7 | 121.28 (13) | C26—C27—H27 | 119.6 |
C10—C9—C8 | 121.66 (16) | C22—C27—H27 | 119.6 |
C10—C9—H9 | 119.2 | C18—C28—H28A | 109.5 |
C8—C9—H9 | 119.2 | C18—C28—H28B | 109.5 |
C9—C10—C11 | 120.19 (16) | H28A—C28—H28B | 109.5 |
C9—C10—H10 | 119.9 | C18—C28—H28C | 109.5 |
C11—C10—H10 | 119.9 | H28A—C28—H28C | 109.5 |
C12—C11—C10 | 120.74 (17) | H28B—C28—H28C | 109.5 |
C12—C11—H11 | 119.6 | C18—C28—H28D | 109.5 |
C10—C11—H11 | 119.6 | H28A—C28—H28D | 141.1 |
C11—C12—C13 | 120.61 (15) | H28B—C28—H28D | 56.3 |
C11—C12—H12 | 119.7 | H28C—C28—H28D | 56.3 |
C13—C12—H12 | 119.7 | C18—C28—H28E | 109.5 |
C12—C13—C8 | 119.10 (13) | H28A—C28—H28E | 56.3 |
C12—C13—C14 | 124.56 (13) | H28B—C28—H28E | 141.1 |
C8—C13—C14 | 116.29 (13) | H28C—C28—H28E | 56.3 |
C1—C14—N1 | 105.14 (11) | H28D—C28—H28E | 109.5 |
C1—C14—C13 | 122.53 (12) | C18—C28—H28F | 109.5 |
N1—C14—C13 | 132.28 (12) | H28A—C28—H28F | 56.3 |
C20—C15—C16 | 120.59 (13) | H28B—C28—H28F | 56.3 |
C20—C15—N1 | 119.52 (12) | H28C—C28—H28F | 141.1 |
C16—C15—N1 | 119.88 (12) | H28D—C28—H28F | 109.5 |
C15—C16—C17 | 119.35 (14) | H28E—C28—H28F | 109.5 |
C15—C16—H16 | 120.3 | F2—C29—F3 | 103.88 (19) |
C17—C16—H16 | 120.3 | F2—C29—F1 | 107.1 (2) |
C16—C17—C18 | 121.58 (15) | F3—C29—F1 | 101.85 (18) |
C16—C17—H17 | 119.2 | F2—C29—C25 | 115.41 (17) |
C18—C17—H17 | 119.2 | F3—C29—C25 | 113.42 (16) |
C19—C18—C17 | 117.04 (13) | F1—C29—C25 | 113.81 (17) |
C21—N2—C1—C14 | 0.56 (15) | C12—C13—C14—N1 | 3.7 (2) |
C21—N2—C1—C2 | −178.25 (12) | C8—C13—C14—N1 | −178.95 (13) |
C14—C1—C2—C3 | −177.56 (13) | C21—N1—C15—C20 | 74.53 (17) |
N2—C1—C2—C3 | 1.1 (2) | C14—N1—C15—C20 | −100.77 (15) |
C14—C1—C2—C7 | 1.5 (2) | C21—N1—C15—C16 | −105.97 (15) |
N2—C1—C2—C7 | −179.81 (12) | C14—N1—C15—C16 | 78.73 (17) |
C7—C2—C3—C4 | −0.3 (2) | C20—C15—C16—C17 | 1.1 (2) |
C1—C2—C3—C4 | 178.76 (14) | N1—C15—C16—C17 | −178.39 (11) |
C2—C3—C4—C5 | −1.6 (2) | C15—C16—C17—C18 | −0.5 (2) |
C3—C4—C5—C6 | 2.3 (3) | C16—C17—C18—C19 | −0.4 (2) |
C4—C5—C6—C7 | −1.1 (3) | C16—C17—C18—C28 | 179.00 (13) |
C5—C6—C7—C2 | −0.7 (2) | C17—C18—C19—C20 | 0.7 (2) |
C5—C6—C7—C8 | −179.74 (15) | C28—C18—C19—C20 | −178.69 (13) |
C3—C2—C7—C6 | 1.4 (2) | C16—C15—C20—C19 | −0.8 (2) |
C1—C2—C7—C6 | −177.69 (12) | N1—C15—C20—C19 | 178.68 (12) |
C3—C2—C7—C8 | −179.54 (13) | C18—C19—C20—C15 | −0.1 (2) |
C1—C2—C7—C8 | 1.4 (2) | C1—N2—C21—N1 | 0.06 (14) |
C6—C7—C8—C9 | −4.6 (2) | C1—N2—C21—C22 | −179.98 (11) |
C2—C7—C8—C9 | 176.33 (13) | C14—N1—C21—N2 | −0.64 (15) |
C6—C7—C8—C13 | 177.54 (14) | C15—N1—C21—N2 | −176.70 (12) |
C2—C7—C8—C13 | −1.5 (2) | C14—N1—C21—C22 | 179.41 (11) |
C13—C8—C9—C10 | 1.2 (3) | C15—N1—C21—C22 | 3.3 (2) |
C7—C8—C9—C10 | −176.67 (16) | N2—C21—C22—C27 | 28.74 (18) |
C8—C9—C10—C11 | −0.1 (3) | N1—C21—C22—C27 | −151.30 (13) |
C9—C10—C11—C12 | −0.6 (3) | N2—C21—C22—C23 | −148.34 (14) |
C10—C11—C12—C13 | 0.2 (3) | N1—C21—C22—C23 | 31.6 (2) |
C11—C12—C13—C8 | 1.0 (2) | C27—C22—C23—C24 | 0.1 (2) |
C11—C12—C13—C14 | 178.22 (14) | C21—C22—C23—C24 | 177.17 (12) |
C9—C8—C13—C12 | −1.6 (2) | C22—C23—C24—C25 | 0.8 (2) |
C7—C8—C13—C12 | 176.25 (13) | C23—C24—C25—C26 | −1.1 (2) |
C9—C8—C13—C14 | −179.10 (13) | C23—C24—C25—C29 | 178.93 (14) |
C7—C8—C13—C14 | −1.2 (2) | C24—C25—C26—C27 | 0.5 (2) |
N2—C1—C14—N1 | −0.94 (14) | C29—C25—C26—C27 | −179.52 (14) |
C2—C1—C14—N1 | 177.93 (11) | C25—C26—C27—C22 | 0.4 (2) |
N2—C1—C14—C13 | 176.67 (11) | C23—C22—C27—C26 | −0.7 (2) |
C2—C1—C14—C13 | −4.5 (2) | C21—C22—C27—C26 | −177.97 (12) |
C21—N1—C14—C1 | 0.93 (13) | C26—C25—C29—F2 | −20.8 (3) |
C15—N1—C14—C1 | 177.00 (12) | C24—C25—C29—F2 | 159.2 (2) |
C21—N1—C14—C13 | −176.36 (13) | C26—C25—C29—F3 | 98.9 (2) |
C15—N1—C14—C13 | −0.3 (2) | C24—C25—C29—F3 | −81.2 (2) |
C12—C13—C14—C1 | −173.14 (14) | C26—C25—C29—F1 | −145.31 (19) |
C8—C13—C14—C1 | 4.16 (19) | C24—C25—C29—F1 | 34.7 (3) |
Cg1 and Cg2 are the centroids of the C15–C20 and C8–C13 rings, respectively. |
D—H···A | D—H | H···A | D···A | D—H···A |
C12—H12···Cg1 | 0.93 | 2.84 | 3.698 (2) | 155 |
C26—H26···Cg2i | 0.93 | 2.86 | 3.487 (2) | 125 |
Symmetry code: (i) −x+1, −y, −z+1. |
Experimental details
Crystal data | |
Chemical formula | C29H19F3N2 |
Mr | 452.46 |
Crystal system, space group | Triclinic, P1 |
Temperature (K) | 293 |
a, b, c (Å) | 8.113 (3), 11.733 (5), 12.713 (2) |
α, β, γ (°) | 76.397 (1), 73.490 (2), 86.185 (5) |
V (Å3) | 1127.7 (7) |
Z | 2 |
Radiation type | Mo Kα |
µ (mm−1) | 0.10 |
Crystal size (mm) | 0.35 × 0.30 × 0.25 |
Data collection | |
Diffractometer | Bruker Kappa APEXII CCD |
Absorption correction | Multi-scan (SADABS; Bruker, 2008) |
Tmin, Tmax | 0.967, 0.977 |
No. of measured, independent and observed [I > 2σ(I)] reflections | 22540, 22540, 14735 |
Rint | 0.000 |
(sin θ/λ)max (Å−1) | 0.652 |
Refinement | |
R[F2 > 2σ(F2)], wR(F2), S | 0.068, 0.236, 1.04 |
No. of reflections | 22540 |
No. of parameters | 310 |
H-atom treatment | H-atom parameters constrained |
Δρmax, Δρmin (e Å−3) | 0.72, −0.38 |
Computer programs: APEX2 (Bruker, 2008), APEX2 and SAINT (Bruker, 2008), SAINT (Bruker, 2008), SHELXS97 (Sheldrick, 2008), SHELXL97 (Sheldrick, 2008), PLATON (Spek, 2009).
Cg1 and Cg2 are the centroids of the C15–C20 and C8–C13 rings, respectively. |
D—H···A | D—H | H···A | D···A | D—H···A |
C12—H12···Cg1 | 0.9300 | 2.8400 | 3.698 (2) | 155 |
C26—H26···Cg2i | 0.9300 | 2.8600 | 3.487 (2) | 125 |
Symmetry code: (i) −x+1, −y, −z+1. |
Acknowledgements
PS and AP thank Dr Babu Varghese, Senior Scientific Officer, SAIF, IIT, Chennai, India, for the data collection.
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 optical and conductive properties of the conjugated materials containing imidazole and phenanthroline heterocycles have found in many applications (Moylan et al.,1993, Bu et al.,1996, Wang et al.,2002).
The 1H-phenanthro[9,10 - d]imidazole is a promising building block in the field of molecular materials. It has many desirable properties such as good heat stability, ease of introduction into molecules used as chromophores, fluorescent in nature and readily tunable absorption wavelengths.
The study of organic electroluminescent materials and devices (Loy et al., 2002, Adachi et al., 1995) is therefore of great importance. The photophysical, electrochemical and mobility properties of phenanthroimidazole derivatives have been reported (Yuan et al., 2011).
As our research group deals with organic light emitting devices, we are interested in the title compound (I), Figure 1, as a ligand for inorganic complexes.
The dihedral angle between the phenanthrene moiety and the flourobenzene ring is 33.71 (4)° and to that of the benzene ring of methylphenyl is 78.10 (5)°. The dihedral angle between methylphenyl and benzene ring of trifluorobenzene ring is 72.60 (5)°. The maximum deviation of C12 atom from the mean plane of phenanthrotetracyclic system is 0.076 (1)°. The crystal structure is stabilized by C—H···π interactions. One of these, C12–H12···Cg1 is an intramolecular interaction. The other, C26–H26···Cg2 links the molecules into centrosymmetically related pairs across the centre-of-symmetry at (0.5, 0, 0.5), Figure 2. Cg1 and Cg2 are the centres of gravity of the benzene rings C15–C20 and C8–C13 respectively.