organic compounds
4-(4-Chlorophenyl)-2,6-diphenylpyridine
aCollege of Life Sciences and Chemistry, TianShui Normal University, TianShui 741000, People's Republic of China, and bCollege of Chemistry and Chemical Engineering, Liaocheng University, Shandong 252059, People's Republic of China
*Correspondence e-mail: hxqqxh2008@163.com
In the title compound, C23H16ClN, the crystal packing exhibits no significantly short intermolecular contacts. The benzene rings show a disrotatory arrangement and the angles between them and the pyridine ring range from 20.80 (3) to 37.56 (4)°. The Cl atom deviates by 0.01 (3) Å from the plane of the benzene ring to which it is attached.
Experimental
Crystal data
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Data collection: SMART (Siemens, 1996); cell SAINT (Siemens, 1996); data reduction: SAINT; program(s) used to solve structure: SHELXS97 (Sheldrick, 1997a); program(s) used to refine structure: SHELXL97 (Sheldrick, 1997a); molecular graphics: SHELXTL (Sheldrick, 1997b); software used to prepare material for publication: SHELXTL.
Supporting information
https://doi.org/10.1107/S1600536807064380/av2004sup1.cif
contains datablocks I, global. DOI:Structure factors: contains datablock I. DOI: https://doi.org/10.1107/S1600536807064380/av2004Isup2.hkl
4-chlorobenzaldehyde (0.3 mmol) and acetophenone (0.6 mmol) under boron trifluoride ether (0.1 mmol) as a catalyst, the mixture was mixed in 50 ml flask. After irradiating for 3 min at 375 W, the mixture was cooled slowly to room temperature and the title compound was then recrystallized from ethanol, affording the title compound as a colorless crystalline solid. Elemental analysis: calculated for C23H16ClN: C 80.81, H 4.72, N 4.10%; found: C 80.68, H 4.75, N 4.14%.
All H atoms were positioned geometrically, with C—H=0.93- 0.98 Å, and refined as riding, with Uiso(H)=1.2Ueq(C).
In this paper,we present a new crystal, 4-(4'-chlorophenyl)-2,6-diphenylpyridine, (I). In (I) (Fig. 1), the bond lengths and angles are normal and comparable to those observed in reported the compound (Ondracek et al., 1994).
The three phenyl rings display a disrotatory conformation and form different angles with the pyridine ring. The phenyl ring attached at C1 forms the smallest angle with the heterocycle, 20.8°, because there is only the free electron pair of the N atom and one H atom in the ortho positions. The angle formed by the phenyl ring attached at C5 is slightly larger - 22.39°. The remaining phenyl ring forms the largest angle with the heterocycle, 37.56°. Meanwhile,the crystal packing demonstrates no significantly short intermolecular contacts.
In 2,4,6-triphenylpyridine (Ondracek et al., 1994), the C—N distance is similar to that in the title compound.
Data collection: SMART (Siemens, 1996); cell
SMART (Siemens, 1996); data reduction: SMART (Siemens, 1996); program(s) used to solve structure: SHELXS97 (Sheldrick, 1997a); program(s) used to refine structure: SHELXS97 (Sheldrick, 1997a); molecular graphics: SHELXTL (Sheldrick, 1997b); software used to prepare material for publication: SHELXTL (Sheldrick, 1997b).Fig. 1. ORTEP drawing of the title compound with atom numbering scheme and thermal ellipsoids at 30% probability level. |
C23H16ClN | F(000) = 712 |
Mr = 341.82 | Dx = 1.293 Mg m−3 |
Monoclinic, P21/c | Mo Kα radiation, λ = 0.71073 Å |
a = 9.3995 (11) Å | Cell parameters from 1970 reflections |
b = 20.621 (2) Å | θ = 2.3–25.2° |
c = 9.5362 (12) Å | µ = 0.22 mm−1 |
β = 108.146 (2)° | T = 298 K |
V = 1756.4 (3) Å3 | Block, colourless |
Z = 4 | 0.42 × 0.37 × 0.15 mm |
Bruker SMART CCD area-detector diffractometer | 3078 independent reflections |
Radiation source: fine-focus sealed tube | 1752 reflections with I > 2σ(I) |
Graphite monochromator | Rint = 0.045 |
phi and ω scans | θmax = 25.0°, θmin = 2.0° |
Absorption correction: multi-scan (SADABS; Sheldrick, 1996) | h = −7→11 |
Tmin = 0.913, Tmax = 0.968 | k = −24→24 |
8674 measured reflections | l = −11→11 |
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)] = 0.048 | Hydrogen site location: inferred from neighbouring sites |
wR(F2) = 0.135 | H-atom parameters constrained |
S = 1.02 | w = 1/[σ2(Fo2) + (0.0579P)2 + 0.2473P] where P = (Fo2 + 2Fc2)/3 |
3078 reflections | (Δ/σ)max = 0.001 |
226 parameters | Δρmax = 0.18 e Å−3 |
0 restraints | Δρmin = −0.24 e Å−3 |
C23H16ClN | V = 1756.4 (3) Å3 |
Mr = 341.82 | Z = 4 |
Monoclinic, P21/c | Mo Kα radiation |
a = 9.3995 (11) Å | µ = 0.22 mm−1 |
b = 20.621 (2) Å | T = 298 K |
c = 9.5362 (12) Å | 0.42 × 0.37 × 0.15 mm |
β = 108.146 (2)° |
Bruker SMART CCD area-detector diffractometer | 3078 independent reflections |
Absorption correction: multi-scan (SADABS; Sheldrick, 1996) | 1752 reflections with I > 2σ(I) |
Tmin = 0.913, Tmax = 0.968 | Rint = 0.045 |
8674 measured reflections |
R[F2 > 2σ(F2)] = 0.048 | 0 restraints |
wR(F2) = 0.135 | H-atom parameters constrained |
S = 1.02 | Δρmax = 0.18 e Å−3 |
3078 reflections | Δρmin = −0.24 e Å−3 |
226 parameters |
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. |
x | y | z | Uiso*/Ueq | ||
Cl1 | 0.16106 (10) | 0.55491 (4) | 0.64505 (11) | 0.0785 (4) | |
N1 | 0.5484 (2) | 0.17758 (10) | 0.9845 (2) | 0.0446 (6) | |
C1 | 0.4223 (3) | 0.18225 (12) | 0.8698 (3) | 0.0416 (7) | |
C2 | 0.3630 (3) | 0.24170 (13) | 0.8142 (3) | 0.0448 (7) | |
H2 | 0.2764 | 0.2434 | 0.7337 | 0.054* | |
C3 | 0.4310 (3) | 0.29874 (12) | 0.8770 (3) | 0.0431 (7) | |
C4 | 0.5590 (3) | 0.29302 (13) | 0.9955 (3) | 0.0480 (7) | |
H4 | 0.6078 | 0.3301 | 1.0417 | 0.058* | |
C5 | 0.6160 (3) | 0.23244 (13) | 1.0465 (3) | 0.0438 (7) | |
C6 | 0.3495 (3) | 0.12018 (13) | 0.8094 (3) | 0.0438 (7) | |
C7 | 0.4301 (3) | 0.06274 (13) | 0.8358 (3) | 0.0527 (8) | |
H7 | 0.5311 | 0.0635 | 0.8906 | 0.063* | |
C8 | 0.3629 (4) | 0.00434 (15) | 0.7821 (4) | 0.0632 (9) | |
H8 | 0.4184 | −0.0338 | 0.8006 | 0.076* | |
C9 | 0.2147 (4) | 0.00284 (16) | 0.7020 (4) | 0.0645 (9) | |
H9 | 0.1695 | −0.0364 | 0.6656 | 0.077* | |
C10 | 0.1321 (3) | 0.05869 (16) | 0.6747 (3) | 0.0624 (9) | |
H10 | 0.0312 | 0.0573 | 0.6200 | 0.075* | |
C11 | 0.1988 (3) | 0.11723 (14) | 0.7284 (3) | 0.0526 (8) | |
H11 | 0.1420 | 0.1550 | 0.7100 | 0.063* | |
C12 | 0.3669 (3) | 0.36252 (12) | 0.8200 (3) | 0.0427 (7) | |
C13 | 0.3699 (3) | 0.41388 (13) | 0.9151 (3) | 0.0508 (8) | |
H13 | 0.4152 | 0.4085 | 1.0160 | 0.061* | |
C14 | 0.3061 (3) | 0.47293 (14) | 0.8612 (4) | 0.0546 (8) | |
H14 | 0.3076 | 0.5070 | 0.9256 | 0.066* | |
C15 | 0.2407 (3) | 0.48093 (13) | 0.7123 (4) | 0.0500 (8) | |
C16 | 0.2377 (3) | 0.43147 (14) | 0.6161 (3) | 0.0532 (8) | |
H16 | 0.1939 | 0.4376 | 0.5152 | 0.064* | |
C17 | 0.3001 (3) | 0.37246 (13) | 0.6697 (3) | 0.0491 (8) | |
H17 | 0.2973 | 0.3387 | 0.6042 | 0.059* | |
C18 | 0.7568 (3) | 0.22443 (13) | 1.1695 (3) | 0.0441 (7) | |
C19 | 0.8387 (3) | 0.16759 (14) | 1.1839 (3) | 0.0563 (8) | |
H19 | 0.8018 | 0.1336 | 1.1187 | 0.068* | |
C20 | 0.9737 (3) | 0.16067 (15) | 1.2933 (4) | 0.0633 (9) | |
H20 | 1.0271 | 0.1221 | 1.3016 | 0.076* | |
C21 | 1.0291 (3) | 0.21002 (16) | 1.3893 (4) | 0.0622 (9) | |
H21 | 1.1217 | 0.2057 | 1.4614 | 0.075* | |
C22 | 0.9486 (4) | 0.26599 (16) | 1.3800 (4) | 0.0684 (10) | |
H22 | 0.9851 | 0.2993 | 1.4472 | 0.082* | |
C23 | 0.8133 (3) | 0.27280 (15) | 1.2707 (4) | 0.0651 (9) | |
H23 | 0.7591 | 0.3109 | 1.2652 | 0.078* |
U11 | U22 | U33 | U12 | U13 | U23 | |
Cl1 | 0.0786 (6) | 0.0582 (5) | 0.1004 (8) | 0.0210 (4) | 0.0301 (5) | 0.0221 (5) |
N1 | 0.0400 (14) | 0.0478 (14) | 0.0423 (14) | 0.0003 (11) | 0.0075 (11) | −0.0008 (11) |
C1 | 0.0391 (17) | 0.0479 (17) | 0.0373 (17) | 0.0008 (13) | 0.0112 (13) | −0.0030 (13) |
C2 | 0.0404 (17) | 0.0510 (17) | 0.0380 (17) | 0.0031 (13) | 0.0050 (13) | 0.0015 (13) |
C3 | 0.0408 (17) | 0.0454 (17) | 0.0411 (18) | 0.0035 (13) | 0.0098 (14) | 0.0015 (13) |
C4 | 0.0449 (18) | 0.0458 (17) | 0.0489 (19) | −0.0022 (13) | 0.0080 (15) | −0.0029 (13) |
C5 | 0.0387 (17) | 0.0480 (17) | 0.0432 (18) | 0.0008 (13) | 0.0106 (13) | −0.0014 (14) |
C6 | 0.0407 (17) | 0.0517 (17) | 0.0369 (17) | −0.0026 (13) | 0.0091 (13) | 0.0008 (13) |
C7 | 0.0480 (18) | 0.0540 (19) | 0.051 (2) | −0.0004 (15) | 0.0078 (14) | −0.0045 (15) |
C8 | 0.072 (2) | 0.0497 (19) | 0.066 (2) | 0.0011 (16) | 0.0181 (19) | −0.0051 (16) |
C9 | 0.074 (3) | 0.056 (2) | 0.057 (2) | −0.0182 (18) | 0.0115 (18) | −0.0064 (16) |
C10 | 0.0508 (19) | 0.075 (2) | 0.052 (2) | −0.0160 (18) | 0.0023 (15) | 0.0003 (17) |
C11 | 0.0493 (19) | 0.0562 (19) | 0.0466 (19) | −0.0013 (15) | 0.0069 (15) | 0.0036 (14) |
C12 | 0.0371 (16) | 0.0458 (16) | 0.0428 (18) | 0.0012 (12) | 0.0090 (13) | 0.0042 (13) |
C13 | 0.0524 (19) | 0.0510 (18) | 0.0454 (19) | 0.0024 (14) | 0.0100 (15) | −0.0012 (14) |
C14 | 0.058 (2) | 0.0468 (18) | 0.061 (2) | 0.0002 (14) | 0.0202 (17) | −0.0057 (15) |
C15 | 0.0457 (18) | 0.0511 (18) | 0.057 (2) | 0.0067 (13) | 0.0215 (16) | 0.0108 (15) |
C16 | 0.0532 (19) | 0.063 (2) | 0.0435 (19) | 0.0119 (15) | 0.0147 (15) | 0.0077 (15) |
C17 | 0.0497 (18) | 0.0534 (18) | 0.0438 (19) | 0.0077 (14) | 0.0140 (14) | 0.0008 (14) |
C18 | 0.0391 (17) | 0.0496 (17) | 0.0411 (18) | −0.0013 (13) | 0.0087 (13) | −0.0008 (13) |
C19 | 0.051 (2) | 0.0526 (19) | 0.057 (2) | 0.0014 (14) | 0.0049 (16) | −0.0033 (15) |
C20 | 0.047 (2) | 0.062 (2) | 0.070 (2) | 0.0055 (15) | 0.0033 (17) | 0.0071 (18) |
C21 | 0.0426 (19) | 0.078 (2) | 0.055 (2) | −0.0050 (17) | 0.0003 (15) | 0.0055 (18) |
C22 | 0.060 (2) | 0.074 (2) | 0.058 (2) | −0.0034 (18) | 0.0004 (17) | −0.0150 (18) |
C23 | 0.056 (2) | 0.062 (2) | 0.064 (2) | 0.0083 (16) | 0.0000 (17) | −0.0129 (17) |
Cl1—C15 | 1.732 (3) | C11—H11 | 0.9300 |
N1—C5 | 1.341 (3) | C12—C17 | 1.389 (4) |
N1—C1 | 1.343 (3) | C12—C13 | 1.389 (4) |
C1—C2 | 1.382 (3) | C13—C14 | 1.384 (4) |
C1—C6 | 1.481 (4) | C13—H13 | 0.9300 |
C2—C3 | 1.382 (4) | C14—C15 | 1.370 (4) |
C2—H2 | 0.9300 | C14—H14 | 0.9300 |
C3—C4 | 1.375 (4) | C15—C16 | 1.366 (4) |
C3—C12 | 1.478 (3) | C16—C17 | 1.378 (4) |
C4—C5 | 1.386 (3) | C16—H16 | 0.9300 |
C4—H4 | 0.9300 | C17—H17 | 0.9300 |
C5—C18 | 1.479 (4) | C18—C23 | 1.374 (4) |
C6—C7 | 1.386 (4) | C18—C19 | 1.385 (4) |
C6—C11 | 1.387 (3) | C19—C20 | 1.376 (4) |
C7—C8 | 1.382 (4) | C19—H19 | 0.9300 |
C7—H7 | 0.9300 | C20—C21 | 1.359 (4) |
C8—C9 | 1.365 (4) | C20—H20 | 0.9300 |
C8—H8 | 0.9300 | C21—C22 | 1.368 (4) |
C9—C10 | 1.368 (4) | C21—H21 | 0.9300 |
C9—H9 | 0.9300 | C22—C23 | 1.378 (4) |
C10—C11 | 1.383 (4) | C22—H22 | 0.9300 |
C10—H10 | 0.9300 | C23—H23 | 0.9300 |
C5—N1—C1 | 118.4 (2) | C17—C12—C3 | 120.8 (2) |
N1—C1—C2 | 121.6 (2) | C13—C12—C3 | 121.0 (3) |
N1—C1—C6 | 116.0 (2) | C14—C13—C12 | 120.7 (3) |
C2—C1—C6 | 122.4 (2) | C14—C13—H13 | 119.7 |
C1—C2—C3 | 120.8 (3) | C12—C13—H13 | 119.7 |
C1—C2—H2 | 119.6 | C15—C14—C13 | 119.6 (3) |
C3—C2—H2 | 119.6 | C15—C14—H14 | 120.2 |
C4—C3—C2 | 116.8 (2) | C13—C14—H14 | 120.2 |
C4—C3—C12 | 122.0 (2) | C16—C15—C14 | 121.0 (3) |
C2—C3—C12 | 121.2 (2) | C16—C15—Cl1 | 119.5 (2) |
C3—C4—C5 | 120.6 (3) | C14—C15—Cl1 | 119.5 (2) |
C3—C4—H4 | 119.7 | C15—C16—C17 | 119.5 (3) |
C5—C4—H4 | 119.7 | C15—C16—H16 | 120.3 |
N1—C5—C4 | 121.8 (3) | C17—C16—H16 | 120.3 |
N1—C5—C18 | 116.1 (2) | C16—C17—C12 | 121.1 (3) |
C4—C5—C18 | 122.1 (2) | C16—C17—H17 | 119.4 |
C7—C6—C11 | 118.0 (2) | C12—C17—H17 | 119.4 |
C7—C6—C1 | 120.5 (2) | C23—C18—C19 | 117.6 (3) |
C11—C6—C1 | 121.5 (2) | C23—C18—C5 | 122.0 (3) |
C8—C7—C6 | 121.1 (3) | C19—C18—C5 | 120.4 (2) |
C8—C7—H7 | 119.5 | C20—C19—C18 | 121.0 (3) |
C6—C7—H7 | 119.5 | C20—C19—H19 | 119.5 |
C9—C8—C7 | 119.8 (3) | C18—C19—H19 | 119.5 |
C9—C8—H8 | 120.1 | C21—C20—C19 | 120.1 (3) |
C7—C8—H8 | 120.1 | C21—C20—H20 | 119.9 |
C8—C9—C10 | 120.5 (3) | C19—C20—H20 | 119.9 |
C8—C9—H9 | 119.8 | C20—C21—C22 | 120.0 (3) |
C10—C9—H9 | 119.8 | C20—C21—H21 | 120.0 |
C9—C10—C11 | 120.0 (3) | C22—C21—H21 | 120.0 |
C9—C10—H10 | 120.0 | C21—C22—C23 | 119.8 (3) |
C11—C10—H10 | 120.0 | C21—C22—H22 | 120.1 |
C10—C11—C6 | 120.7 (3) | C23—C22—H22 | 120.1 |
C10—C11—H11 | 119.6 | C18—C23—C22 | 121.4 (3) |
C6—C11—H11 | 119.6 | C18—C23—H23 | 119.3 |
C17—C12—C13 | 118.1 (2) | C22—C23—H23 | 119.3 |
Experimental details
Crystal data | |
Chemical formula | C23H16ClN |
Mr | 341.82 |
Crystal system, space group | Monoclinic, P21/c |
Temperature (K) | 298 |
a, b, c (Å) | 9.3995 (11), 20.621 (2), 9.5362 (12) |
β (°) | 108.146 (2) |
V (Å3) | 1756.4 (3) |
Z | 4 |
Radiation type | Mo Kα |
µ (mm−1) | 0.22 |
Crystal size (mm) | 0.42 × 0.37 × 0.15 |
Data collection | |
Diffractometer | Bruker SMART CCD area-detector |
Absorption correction | Multi-scan (SADABS; Sheldrick, 1996) |
Tmin, Tmax | 0.913, 0.968 |
No. of measured, independent and observed [I > 2σ(I)] reflections | 8674, 3078, 1752 |
Rint | 0.045 |
(sin θ/λ)max (Å−1) | 0.595 |
Refinement | |
R[F2 > 2σ(F2)], wR(F2), S | 0.048, 0.135, 1.02 |
No. of reflections | 3078 |
No. of parameters | 226 |
H-atom treatment | H-atom parameters constrained |
Δρmax, Δρmin (e Å−3) | 0.18, −0.24 |
Computer programs: SMART (Siemens, 1996), SHELXS97 (Sheldrick, 1997a), SHELXTL (Sheldrick, 1997b).
Acknowledgements
The authors acknowledge the support of the National Natural Science Foundation of Liaocheng University (No. X051040).
References
Ondrácek, J., Novotný, J., Petru, M., Lhoták, P. & Kuthan, J. (1994). Acta Cryst. C50, 1809–1811. CSD CrossRef Web of Science IUCr Journals Google Scholar
Sheldrick, G. M. (1996). SADABS. University of Göttingen, Germany. Google Scholar
Sheldrick, G. M. (1997a). SHELXS97 and SHELXL97. University of Göttingen, Germany. Google Scholar
Sheldrick, G. M. (1997b). SHELXTL. Version 5.1. Bruker AXS Inc., Madison, Wisconsin, USA. Google Scholar
Siemens (1996). SMART and SAINT. Siemens Analytical X-ray Instruments Inc., Madison, Wisconsin, USA. Google Scholar
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In this paper,we present a new crystal, 4-(4'-chlorophenyl)-2,6-diphenylpyridine, (I). In (I) (Fig. 1), the bond lengths and angles are normal and comparable to those observed in reported the compound (Ondracek et al., 1994).
The three phenyl rings display a disrotatory conformation and form different angles with the pyridine ring. The phenyl ring attached at C1 forms the smallest angle with the heterocycle, 20.8°, because there is only the free electron pair of the N atom and one H atom in the ortho positions. The angle formed by the phenyl ring attached at C5 is slightly larger - 22.39°. The remaining phenyl ring forms the largest angle with the heterocycle, 37.56°. Meanwhile,the crystal packing demonstrates no significantly short intermolecular contacts.