| Literature DB >> 25995941 |
Ricarda Heckel1, Jürg Hulliger2, Anke Schwarzer1, Edwin Weber1.
Abstract
The title compound, C13H4BrF4N, synthesized from 1,4'-bromo-iodo-benzene and 4-bromo-2,3,5,6-tetra-fluoro-benzo-nitrile in a coupling reaction was found to crystallize in the ortho-rhom-bic space group P212121. The two phenyl rings are rotated with respect to each other by 40.6 (6)°. The mol-ecules inter-act via aryl-perfluoroaryl stacking [3.796 (2) and 3.773 (2) Å], resulting in inter-molecular chains along the a-axis direction. C-H⋯F contacts of about 2.45 Å connect these chains. In contrast to the structure of the parent compound 4'-bromo-biphenyl-4-carbo-nitrile, CN⋯Br contacts that could have given rise to a linear arrangement of the biphenyl mol-ecules desirable for non-linear optical (NLO) materials are not observed in the packing. Instead, several Br⋯F [3.2405 (17) and 3.2777 (18) Å] and F⋯F [2.894 (2) Å] contacts of side-on type II form an inter-molecular network of zigzag chains. The crystal studied was refined as an inversion twin.Entities:
Keywords: biphenyl; bromo–cyano substitution; crystal structure; halogen interactions; tetrafluoro substitution; π–πF stacking
Year: 2015 PMID: 25995941 PMCID: PMC4420037 DOI: 10.1107/S2056989015007847
Source DB: PubMed Journal: Acta Crystallogr E Crystallogr Commun
| C13H4BrF4N | |
| Mo | |
| Orthorhombic, | Cell parameters from 4750 reflections |
| θ = 3.2–28.4° | |
| µ = 3.66 mm−1 | |
| Splitter, colorless | |
| 0.49 × 0.13 × 0.10 mm | |
| Bruker SMART CCD area-detector diffractometer | 2930 reflections with |
| Radiation source: fine-focus sealed tube | |
| phi and ω scans | θmax = 29.8°, θmin = 2.3° |
| Absorption correction: multi-scan ( | |
| 18347 measured reflections | |
| 3234 independent reflections |
| Refinement on | Hydrogen site location: inferred from neighbouring sites |
| Least-squares matrix: full | H-atom parameters constrained |
| (Δ/σ)max = 0.001 | |
| Δρmax = 0.46 e Å−3 | |
| 3234 reflections | Δρmin = −0.31 e Å−3 |
| 173 parameters | Absolute structure: Refined as an inversion twin. |
| 0 restraints | Absolute structure parameter: 0.011 (9) |
| 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. Refined as a 2-component inversion twin. |
| Br1 | 0.89811 (4) | 0.35795 (3) | 0.37922 (2) | 0.01853 (8) | |
| F1 | 0.7744 (2) | 1.00596 (16) | 0.75920 (12) | 0.0196 (4) | |
| F2 | 0.7639 (2) | 0.79698 (15) | 0.69387 (12) | 0.0179 (4) | |
| F3 | 1.0359 (2) | 0.90632 (14) | 0.37137 (13) | 0.0163 (4) | |
| F4 | 1.0323 (2) | 1.11450 (14) | 0.43493 (13) | 0.0196 (4) | |
| N1 | 0.9005 (4) | 1.2681 (2) | 0.66563 (19) | 0.0208 (6) | |
| C1 | 0.9026 (4) | 1.1790 (2) | 0.6343 (2) | 0.0161 (6) | |
| C2 | 0.9029 (5) | 1.0664 (2) | 0.5984 (2) | 0.0153 (6) | |
| C3 | 0.8371 (4) | 0.9812 (3) | 0.6627 (2) | 0.0154 (7) | |
| C4 | 0.8354 (4) | 0.8729 (3) | 0.6295 (2) | 0.0147 (6) | |
| C5 | 0.9004 (4) | 0.8418 (2) | 0.5296 (2) | 0.0131 (6) | |
| C6 | 0.9650 (4) | 0.9283 (3) | 0.4667 (2) | 0.0129 (6) | |
| C7 | 0.9665 (4) | 1.0369 (3) | 0.4992 (2) | 0.0144 (6) | |
| C8 | 0.8998 (5) | 0.7249 (2) | 0.4938 (2) | 0.0133 (6) | |
| C9 | 0.9476 (4) | 0.6389 (3) | 0.5620 (2) | 0.0145 (6) | |
| H9 | 0.9807 | 0.6555 | 0.6324 | 0.017* | |
| C10 | 0.9474 (4) | 0.5302 (3) | 0.5286 (2) | 0.0161 (7) | |
| H10 | 0.9795 | 0.4725 | 0.5756 | 0.019* | |
| C11 | 0.8997 (5) | 0.5065 (2) | 0.4254 (2) | 0.0148 (6) | |
| C12 | 0.8517 (4) | 0.5894 (3) | 0.3554 (2) | 0.0153 (7) | |
| H12 | 0.8191 | 0.5720 | 0.2851 | 0.018* | |
| C13 | 0.8520 (4) | 0.6986 (3) | 0.3898 (2) | 0.0142 (6) | |
| H13 | 0.8196 | 0.7560 | 0.3424 | 0.017* |
| Br1 | 0.02368 (15) | 0.01300 (14) | 0.01890 (13) | −0.00129 (14) | 0.00259 (14) | −0.00242 (13) |
| F1 | 0.0229 (10) | 0.0218 (10) | 0.0141 (8) | 0.0003 (8) | 0.0031 (7) | −0.0022 (7) |
| F2 | 0.0213 (10) | 0.0185 (10) | 0.0138 (8) | −0.0028 (8) | 0.0029 (7) | 0.0034 (7) |
| F3 | 0.0201 (9) | 0.0163 (9) | 0.0125 (7) | 0.0014 (7) | 0.0034 (7) | −0.0004 (8) |
| F4 | 0.0265 (10) | 0.0143 (10) | 0.0179 (8) | −0.0015 (7) | 0.0042 (7) | 0.0030 (7) |
| N1 | 0.0216 (14) | 0.0193 (15) | 0.0215 (12) | 0.0015 (14) | 0.0011 (13) | −0.0013 (11) |
| C1 | 0.0153 (14) | 0.0200 (15) | 0.0130 (13) | −0.0011 (13) | 0.0005 (14) | 0.0010 (11) |
| C2 | 0.0156 (13) | 0.0137 (14) | 0.0165 (13) | 0.0012 (14) | −0.0020 (13) | −0.0026 (11) |
| C3 | 0.0133 (15) | 0.0204 (18) | 0.0125 (13) | 0.0020 (13) | −0.0003 (11) | −0.0034 (12) |
| C4 | 0.0121 (13) | 0.0149 (16) | 0.0169 (13) | −0.0017 (11) | −0.0013 (12) | 0.0049 (14) |
| C5 | 0.0112 (12) | 0.0144 (15) | 0.0136 (11) | 0.0014 (14) | −0.0040 (12) | −0.0006 (11) |
| C6 | 0.0110 (14) | 0.0162 (16) | 0.0116 (13) | 0.0024 (12) | −0.0007 (11) | −0.0012 (12) |
| C7 | 0.0136 (14) | 0.0138 (16) | 0.0160 (14) | 0.0003 (12) | −0.0008 (11) | 0.0035 (12) |
| C8 | 0.0101 (13) | 0.0134 (15) | 0.0164 (12) | −0.0001 (13) | 0.0009 (13) | −0.0013 (11) |
| C9 | 0.0117 (14) | 0.0187 (16) | 0.0133 (12) | −0.0030 (13) | −0.0021 (10) | −0.0017 (14) |
| C10 | 0.0155 (17) | 0.0149 (16) | 0.0178 (14) | 0.0010 (12) | 0.0008 (12) | 0.0033 (13) |
| C11 | 0.0125 (13) | 0.0136 (15) | 0.0183 (13) | −0.0029 (14) | 0.0017 (14) | −0.0048 (11) |
| C12 | 0.0147 (16) | 0.0191 (17) | 0.0120 (14) | −0.0006 (12) | 0.0002 (10) | −0.0025 (12) |
| C13 | 0.0136 (15) | 0.0151 (15) | 0.0137 (13) | 0.0018 (11) | −0.0005 (11) | 0.0045 (12) |
| Br1—C11 | 1.892 (3) | C5—C8 | 1.487 (4) |
| F1—C3 | 1.346 (3) | C6—C7 | 1.379 (4) |
| F2—C4 | 1.339 (3) | C8—C9 | 1.400 (4) |
| F3—C6 | 1.347 (3) | C8—C13 | 1.406 (4) |
| F4—C7 | 1.336 (3) | C9—C10 | 1.383 (4) |
| N1—C1 | 1.150 (4) | C9—H9 | 0.9500 |
| C1—C2 | 1.438 (4) | C10—C11 | 1.389 (4) |
| C2—C7 | 1.393 (4) | C10—H10 | 0.9500 |
| C2—C3 | 1.402 (4) | C11—C12 | 1.388 (4) |
| C3—C4 | 1.377 (4) | C12—C13 | 1.392 (4) |
| C4—C5 | 1.409 (4) | C12—H12 | 0.9500 |
| C5—C6 | 1.401 (4) | C13—H13 | 0.9500 |
| N1—C1—C2 | 178.1 (3) | C9—C8—C13 | 118.6 (3) |
| C7—C2—C3 | 117.1 (3) | C9—C8—C5 | 121.2 (2) |
| C7—C2—C1 | 122.1 (3) | C13—C8—C5 | 120.3 (3) |
| C3—C2—C1 | 120.8 (2) | C10—C9—C8 | 121.1 (3) |
| F1—C3—C4 | 119.3 (3) | C10—C9—H9 | 119.4 |
| F1—C3—C2 | 119.1 (3) | C8—C9—H9 | 119.4 |
| C4—C3—C2 | 121.6 (3) | C9—C10—C11 | 119.2 (3) |
| F2—C4—C3 | 118.0 (3) | C9—C10—H10 | 120.4 |
| F2—C4—C5 | 120.1 (3) | C11—C10—H10 | 120.4 |
| C3—C4—C5 | 121.9 (3) | C12—C11—C10 | 121.4 (3) |
| C6—C5—C4 | 115.5 (3) | C12—C11—Br1 | 119.1 (2) |
| C6—C5—C8 | 122.5 (2) | C10—C11—Br1 | 119.5 (2) |
| C4—C5—C8 | 122.0 (3) | C11—C12—C13 | 119.0 (3) |
| F3—C6—C7 | 117.1 (3) | C11—C12—H12 | 120.5 |
| F3—C6—C5 | 119.8 (3) | C13—C12—H12 | 120.5 |
| C7—C6—C5 | 123.0 (3) | C12—C13—C8 | 120.7 (3) |
| F4—C7—C6 | 119.3 (3) | C12—C13—H13 | 119.6 |
| F4—C7—C2 | 119.8 (3) | C8—C13—H13 | 119.6 |
| C6—C7—C2 | 120.9 (3) | ||
| C7—C2—C3—F1 | 179.9 (3) | C5—C6—C7—C2 | 0.2 (5) |
| C1—C2—C3—F1 | −0.5 (4) | C3—C2—C7—F4 | −179.4 (3) |
| C7—C2—C3—C4 | 0.1 (5) | C1—C2—C7—F4 | 1.0 (5) |
| C1—C2—C3—C4 | 179.7 (3) | C3—C2—C7—C6 | −0.3 (4) |
| F1—C3—C4—F2 | 2.6 (4) | C1—C2—C7—C6 | −179.9 (3) |
| C2—C3—C4—F2 | −177.5 (3) | C6—C5—C8—C9 | 139.2 (3) |
| F1—C3—C4—C5 | −179.5 (3) | C4—C5—C8—C9 | −40.8 (4) |
| C2—C3—C4—C5 | 0.3 (5) | C6—C5—C8—C13 | −40.4 (5) |
| F2—C4—C5—C6 | 177.3 (3) | C4—C5—C8—C13 | 139.6 (3) |
| C3—C4—C5—C6 | −0.5 (4) | C13—C8—C9—C10 | −0.3 (4) |
| F2—C4—C5—C8 | −2.6 (4) | C5—C8—C9—C10 | −179.9 (3) |
| C3—C4—C5—C8 | 179.6 (3) | C8—C9—C10—C11 | 0.3 (4) |
| C4—C5—C6—F3 | 177.6 (2) | C9—C10—C11—C12 | −0.2 (5) |
| C8—C5—C6—F3 | −2.4 (4) | C9—C10—C11—Br1 | −179.8 (2) |
| C4—C5—C6—C7 | 0.2 (4) | C10—C11—C12—C13 | 0.1 (5) |
| C8—C5—C6—C7 | −179.8 (3) | Br1—C11—C12—C13 | 179.7 (2) |
| F3—C6—C7—F4 | 1.8 (4) | C11—C12—C13—C8 | −0.1 (4) |
| C5—C6—C7—F4 | 179.3 (3) | C9—C8—C13—C12 | 0.2 (4) |
| F3—C6—C7—C2 | −177.3 (3) | C5—C8—C13—C12 | 179.8 (3) |
| H··· | ||||
| C9—H9···F2 | 0.95 | 2.47 | 2.882 (4) | 106 |
| C13—H13···F3 | 0.95 | 2.45 | 2.865 (3) | 107 |
Hydrogen-bond geometry (, )
|
|
| H |
|
|
|---|---|---|---|---|
| C9H9F2 | 0.95 | 2.47 | 2.882(4) | 106 |
| C13H13F3 | 0.95 | 2.45 | 2.865(3) | 107 |