organic compounds
1-(2-Chlorobenzyl)-3-methyl-2,6-diphenylpiperidine
aCentre for Nanotechnology, Department of Chemistry, Kalasalingam University, Krishnankoil 626 126, Tamilnadu, India, bDepartment of Chemistry, University of Malaya, 50603 Kuala Lumpur, Malaysia, and cChemistry Department and Faculty of Science, King Abdulaziz University, PO Box 80203 Jeddah, Saudi Arabia
*Correspondence e-mail: edward.tiekink@gmail.com
In the title compound, C25H26ClN, the piperidine ring has a chair conformation with all ring substituents in equatorial positions. The dihedral angle formed between the chlorobenzene ring and the flanking phenyl rings are 74.91 (18) and 47.86 (17)°. The chloro substituent is anti to the piperidine N atom. In the crystal, centrosymmetrically related molecules aggregate via π–π interactions occurring between chlorobenzene rings [centroid–centroid distance = 3.778 (2) Å] and these are linked into linear supramolecular chains along the a axis by C—H⋯π interactions occurring between the phenyl rings.
Related literature
For the biological activity of piperidine derivatives, see: Ramalingan et al. (2004); Ramachandran et al. (2011). For a related structure, see: Ramalingan et al. (2012).
Experimental
Crystal data
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Refinement
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Data collection: CrysAlis PRO (Agilent, 2012); cell CrysAlis PRO; data reduction: CrysAlis PRO; program(s) used to solve structure: SHELXS97 (Sheldrick, 2008); program(s) used to refine structure: SHELXL97 (Sheldrick, 2008); molecular graphics: ORTEP-3 for Windows (Farrugia, 1997) and DIAMOND (Brandenburg, 2006); software used to prepare material for publication: publCIF (Westrip, 2010).
Supporting information
https://doi.org/10.1107/S1600536812029200/hb6872sup1.cif
contains datablocks I, global. DOI:Structure factors: contains datablock I. DOI: https://doi.org/10.1107/S1600536812029200/hb6872Isup2.hkl
Supporting information file. DOI: https://doi.org/10.1107/S1600536812029200/hb6872Isup3.cml
A starting material, 3-methyl-2,6-diphenylpiperidine, was synthesized from benzaldehyde, 2-butanone and ammonium acetate through a Mannich-type reaction (for a typical synthesis, see Ramalingan et al. (2004)) followed by standard Wolff-Kishner reduction using hydrazine hydrate in diethylene glycol. 1-(2-Chlorobenzyl)-3-methyl-2,6-diphenylpiperidine was then synthesized as follows. To a DMF solution (15 ml) of 3-methyl-2,6-diphenylpiperidine (1.26 g, 0.005 mol) was added potassium tert-butoxide (0.67 g, 0.006 mol). The mixture was stirred for 30 minutes and 2-chlorobenzyl bromide (0.78 ml, 0.006 mol) was added drop-wise. Stirring was continued overnight before aqueous work-up. Extraction with diethyl ether followed by
separation using n-hexane/ethyl acetate (100:4) as an eventually provided the pure title compound as a white solid. Re-crystallization was performed by slow evaporation of its ethanolic solution which afforded colourless plates. M.pt: 352–353 K. Yield: 83%.Carbon-bound H-atoms were placed in calculated positions [C—H = 0.95–1.00 Å, Uiso(H) = 1.2–1.5Ueq(C)] and were included in the
in the riding model approximation. The anisotropic displacement parameters for the C3 and C4 atoms were constrained to be nearly isotropic.Piperidine derivatives are an important class of
with potential applications in medicinal chemistry as these can be frequently recognized in the structures of various synthetic targets as well as naturally occurring (Ramalingan et al., 2004; Ramachandran et al., 2011). The title compound, (I), was designed and synthesized to evaluate its biological properties. The determination was undertaken in order to establish conformational details.In (I), Fig. 1, the piperidine ring has a chair conformation and all ring-substituents occupy equatorial positions. The dihedral angle formed between the C1–C6 benzene ring and the flanking C14–C19 and C20–C25 phenyl rings are 74.91 (18) and 47.86 (17)°, respectively; the dihedral angle between the phenyl rings is 58.93 (18)°. In a comparable molecule, having an extra C-bound methyl group (Ramalingan et al., 2012), these substituents were found to occupy the same positions. The chloro substituent is anti to the piperidine-N atom.
In the crystal packing, centrosymmetrically related molecules aggregate via π—π interactions occurring between chlorobenzene rings [inter-centroid distance = 3.778 (2) Å for 2 - x, 1 - y, 1 - z]. These are linked into linear supramolecular chains along the a axis by C—H···π interactions whereby a phenyl-H17 atom associates with the C20—C25 ring, Fig. 2 and Table 1. Chains aggregate into layers in the ab plane without specific intermolecular interactions between them, Fig. 3.
For the biological activity of piperidine derivatives, see: Ramalingan et al. (2004); Ramachandran et al. (2011). For a related structure, see: Ramalingan et al. (2012).
Data collection: CrysAlis PRO (Agilent, 2012); cell
CrysAlis PRO (Agilent, 2012); data reduction: CrysAlis PRO (Agilent, 2012); program(s) used to solve structure: SHELXS97 (Sheldrick, 2008); program(s) used to refine structure: SHELXL97 (Sheldrick, 2008); molecular graphics: ORTEP-3 for Windows (Farrugia, 1997) and DIAMOND (Brandenburg, 2006); software used to prepare material for publication: publCIF (Westrip, 2010).C25H26ClN | Z = 2 |
Mr = 375.92 | F(000) = 400 |
Triclinic, P1 | Dx = 1.218 Mg m−3 |
Hall symbol: -P 1 | Mo Kα radiation, λ = 0.71073 Å |
a = 10.0878 (7) Å | Cell parameters from 1908 reflections |
b = 10.2837 (5) Å | θ = 2.4–27.5° |
c = 11.3583 (7) Å | µ = 0.20 mm−1 |
α = 94.150 (5)° | T = 100 K |
β = 107.713 (6)° | Plate, colourless |
γ = 111.065 (5)° | 0.25 × 0.15 × 0.03 mm |
V = 1025.32 (11) Å3 |
Agilent SuperNova Dual diffractometer with an Atlas detector | 4678 independent reflections |
Radiation source: SuperNova (Mo) X-ray Source | 2850 reflections with I > 2σ(I) |
Mirror monochromator | Rint = 0.034 |
Detector resolution: 10.4041 pixels mm-1 | θmax = 27.6°, θmin = 2.4° |
ω scan | h = −13→9 |
Absorption correction: multi-scan (CrysAlis PRO; Agilent, 2012) | k = −13→13 |
Tmin = 0.495, Tmax = 1.000 | l = −13→14 |
7033 measured reflections |
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)] = 0.074 | Hydrogen site location: inferred from neighbouring sites |
wR(F2) = 0.185 | H-atom parameters constrained |
S = 1.03 | w = 1/[σ2(Fo2) + (0.0541P)2 + 1.0947P] where P = (Fo2 + 2Fc2)/3 |
4678 reflections | (Δ/σ)max < 0.001 |
244 parameters | Δρmax = 0.72 e Å−3 |
12 restraints | Δρmin = −0.47 e Å−3 |
C25H26ClN | γ = 111.065 (5)° |
Mr = 375.92 | V = 1025.32 (11) Å3 |
Triclinic, P1 | Z = 2 |
a = 10.0878 (7) Å | Mo Kα radiation |
b = 10.2837 (5) Å | µ = 0.20 mm−1 |
c = 11.3583 (7) Å | T = 100 K |
α = 94.150 (5)° | 0.25 × 0.15 × 0.03 mm |
β = 107.713 (6)° |
Agilent SuperNova Dual diffractometer with an Atlas detector | 4678 independent reflections |
Absorption correction: multi-scan (CrysAlis PRO; Agilent, 2012) | 2850 reflections with I > 2σ(I) |
Tmin = 0.495, Tmax = 1.000 | Rint = 0.034 |
7033 measured reflections |
R[F2 > 2σ(F2)] = 0.074 | 12 restraints |
wR(F2) = 0.185 | H-atom parameters constrained |
S = 1.03 | Δρmax = 0.72 e Å−3 |
4678 reflections | Δρmin = −0.47 e Å−3 |
244 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 | 0.71459 (12) | 0.30264 (9) | 0.23928 (9) | 0.0512 (3) | |
C1 | 0.8802 (4) | 0.4580 (4) | 0.3038 (3) | 0.0395 (8) | |
C2 | 1.0149 (5) | 0.4438 (5) | 0.3581 (3) | 0.0522 (10) | |
H2 | 1.0170 | 0.3523 | 0.3591 | 0.063* | |
C3 | 1.1464 (5) | 0.5651 (6) | 0.4110 (4) | 0.0622 (12) | |
H3 | 1.2396 | 0.5560 | 0.4494 | 0.075* | |
C4 | 1.1470 (4) | 0.7006 (5) | 0.4099 (3) | 0.0482 (10) | |
H4 | 1.2386 | 0.7836 | 0.4462 | 0.058* | |
C5 | 1.0061 (4) | 0.7099 (4) | 0.3528 (3) | 0.0395 (8) | |
H5 | 1.0039 | 0.8013 | 0.3505 | 0.047* | |
C6 | 0.8716 (3) | 0.5909 (3) | 0.3004 (3) | 0.0284 (7) | |
N1 | 0.7224 (3) | 0.7408 (2) | 0.2310 (2) | 0.0260 (6) | |
C7 | 0.7188 (3) | 0.5974 (3) | 0.2470 (3) | 0.0287 (7) | |
H7A | 0.6623 | 0.5315 | 0.1637 | 0.034* | |
H7B | 0.6614 | 0.5625 | 0.3032 | 0.034* | |
C8 | 0.6816 (4) | 0.7457 (3) | 0.0938 (3) | 0.0308 (7) | |
H8 | 0.5797 | 0.6671 | 0.0471 | 0.037* | |
C9 | 0.6704 (4) | 0.8861 (3) | 0.0710 (3) | 0.0390 (8) | |
H9A | 0.6383 | 0.8849 | −0.0207 | 0.047* | |
H9B | 0.7715 | 0.9652 | 0.1128 | 0.047* | |
C10 | 0.5567 (4) | 0.9107 (4) | 0.1226 (3) | 0.0386 (8) | |
H10A | 0.5526 | 1.0033 | 0.1086 | 0.046* | |
H10B | 0.4542 | 0.8349 | 0.0773 | 0.046* | |
C11 | 0.6033 (4) | 0.9101 (3) | 0.2629 (3) | 0.0367 (8) | |
H11 | 0.7050 | 0.9898 | 0.3071 | 0.044* | |
C12 | 0.6174 (4) | 0.7696 (3) | 0.2865 (3) | 0.0289 (7) | |
H12 | 0.5145 | 0.6903 | 0.2462 | 0.035* | |
C13 | 0.4882 (5) | 0.9353 (4) | 0.3160 (3) | 0.0508 (10) | |
H13A | 0.4819 | 1.0256 | 0.2998 | 0.076* | |
H13B | 0.5220 | 0.9390 | 0.4072 | 0.076* | |
H13C | 0.3880 | 0.8573 | 0.2747 | 0.076* | |
C14 | 0.6717 (3) | 0.7731 (3) | 0.4273 (3) | 0.0257 (6) | |
C15 | 0.8186 (4) | 0.8583 (3) | 0.5027 (3) | 0.0373 (8) | |
H15 | 0.8873 | 0.9119 | 0.4653 | 0.045* | |
C16 | 0.8687 (4) | 0.8678 (4) | 0.6320 (3) | 0.0425 (9) | |
H16 | 0.9714 | 0.9261 | 0.6822 | 0.051* | |
C17 | 0.7699 (4) | 0.7930 (4) | 0.6883 (3) | 0.0430 (9) | |
H17 | 0.8030 | 0.8017 | 0.7773 | 0.052* | |
C18 | 0.6248 (5) | 0.7071 (4) | 0.6151 (3) | 0.0537 (11) | |
H18 | 0.5566 | 0.6544 | 0.6532 | 0.064* | |
C19 | 0.5744 (4) | 0.6950 (4) | 0.4837 (3) | 0.0443 (9) | |
H19 | 0.4730 | 0.6330 | 0.4333 | 0.053* | |
C20 | 0.7954 (4) | 0.7211 (3) | 0.0442 (3) | 0.0299 (7) | |
C21 | 0.7525 (4) | 0.5955 (3) | −0.0406 (3) | 0.0367 (8) | |
H21 | 0.6511 | 0.5262 | −0.0672 | 0.044* | |
C22 | 0.8556 (5) | 0.5702 (4) | −0.0870 (3) | 0.0459 (9) | |
H22 | 0.8247 | 0.4838 | −0.1441 | 0.055* | |
C23 | 1.0022 (5) | 0.6704 (4) | −0.0500 (3) | 0.0488 (10) | |
H23 | 1.0730 | 0.6536 | −0.0814 | 0.059* | |
C24 | 1.0459 (4) | 0.7955 (4) | 0.0331 (3) | 0.0488 (10) | |
H24 | 1.1470 | 0.8651 | 0.0587 | 0.059* | |
C25 | 0.9436 (4) | 0.8202 (4) | 0.0791 (3) | 0.0412 (9) | |
H25 | 0.9754 | 0.9071 | 0.1360 | 0.049* |
U11 | U22 | U33 | U12 | U13 | U23 | |
Cl1 | 0.0784 (7) | 0.0327 (4) | 0.0474 (5) | 0.0239 (5) | 0.0270 (5) | 0.0073 (4) |
C1 | 0.053 (2) | 0.053 (2) | 0.0308 (16) | 0.0303 (18) | 0.0270 (16) | 0.0130 (15) |
C2 | 0.069 (3) | 0.083 (3) | 0.039 (2) | 0.054 (3) | 0.035 (2) | 0.023 (2) |
C3 | 0.047 (2) | 0.119 (4) | 0.042 (2) | 0.047 (3) | 0.0269 (19) | 0.024 (2) |
C4 | 0.0341 (19) | 0.082 (3) | 0.0307 (18) | 0.0177 (19) | 0.0204 (15) | 0.0145 (18) |
C5 | 0.0325 (18) | 0.052 (2) | 0.0270 (16) | 0.0060 (16) | 0.0147 (15) | 0.0051 (15) |
C6 | 0.0312 (16) | 0.0384 (17) | 0.0195 (14) | 0.0126 (14) | 0.0158 (13) | 0.0069 (12) |
N1 | 0.0342 (14) | 0.0246 (12) | 0.0213 (12) | 0.0102 (11) | 0.0147 (11) | 0.0053 (10) |
C7 | 0.0316 (17) | 0.0235 (14) | 0.0290 (15) | 0.0065 (13) | 0.0140 (13) | 0.0037 (12) |
C8 | 0.0398 (18) | 0.0295 (15) | 0.0222 (14) | 0.0105 (14) | 0.0145 (14) | 0.0025 (12) |
C9 | 0.062 (2) | 0.0353 (17) | 0.0218 (15) | 0.0190 (17) | 0.0173 (16) | 0.0092 (13) |
C10 | 0.060 (2) | 0.0386 (18) | 0.0266 (16) | 0.0283 (17) | 0.0165 (16) | 0.0123 (14) |
C11 | 0.055 (2) | 0.0365 (17) | 0.0253 (15) | 0.0243 (16) | 0.0160 (15) | 0.0082 (13) |
C12 | 0.0338 (17) | 0.0297 (15) | 0.0243 (15) | 0.0112 (13) | 0.0136 (13) | 0.0049 (12) |
C13 | 0.070 (3) | 0.058 (2) | 0.042 (2) | 0.038 (2) | 0.026 (2) | 0.0164 (18) |
C14 | 0.0306 (16) | 0.0254 (14) | 0.0227 (14) | 0.0107 (13) | 0.0124 (13) | 0.0040 (12) |
C15 | 0.0389 (19) | 0.0342 (17) | 0.0284 (16) | 0.0018 (15) | 0.0147 (15) | 0.0005 (14) |
C16 | 0.042 (2) | 0.046 (2) | 0.0263 (16) | 0.0095 (17) | 0.0070 (16) | −0.0050 (15) |
C17 | 0.062 (2) | 0.0429 (19) | 0.0227 (15) | 0.0210 (18) | 0.0136 (17) | 0.0072 (14) |
C18 | 0.059 (2) | 0.060 (2) | 0.038 (2) | 0.009 (2) | 0.0293 (19) | 0.0197 (18) |
C19 | 0.0365 (19) | 0.050 (2) | 0.0355 (18) | 0.0038 (17) | 0.0154 (16) | 0.0078 (16) |
C20 | 0.0413 (18) | 0.0320 (16) | 0.0189 (13) | 0.0133 (14) | 0.0157 (13) | 0.0065 (12) |
C21 | 0.045 (2) | 0.0311 (16) | 0.0293 (16) | 0.0087 (15) | 0.0151 (15) | 0.0039 (13) |
C22 | 0.072 (3) | 0.046 (2) | 0.0320 (18) | 0.031 (2) | 0.0261 (19) | 0.0075 (16) |
C23 | 0.059 (2) | 0.076 (3) | 0.0330 (18) | 0.037 (2) | 0.0304 (18) | 0.0223 (19) |
C24 | 0.045 (2) | 0.065 (2) | 0.0323 (18) | 0.0119 (19) | 0.0200 (17) | 0.0140 (18) |
C25 | 0.047 (2) | 0.0412 (19) | 0.0279 (16) | 0.0066 (17) | 0.0176 (16) | 0.0005 (14) |
Cl1—C1 | 1.746 (4) | C11—H11 | 1.0000 |
C1—C2 | 1.376 (5) | C12—C14 | 1.518 (4) |
C1—C6 | 1.402 (5) | C12—H12 | 1.0000 |
C2—C3 | 1.376 (6) | C13—H13A | 0.9800 |
C2—H2 | 0.9500 | C13—H13B | 0.9800 |
C3—C4 | 1.393 (6) | C13—H13C | 0.9800 |
C3—H3 | 0.9500 | C14—C15 | 1.372 (4) |
C4—C5 | 1.413 (5) | C14—C19 | 1.381 (4) |
C4—H4 | 0.9500 | C15—C16 | 1.384 (4) |
C5—C6 | 1.379 (4) | C15—H15 | 0.9500 |
C5—H5 | 0.9500 | C16—C17 | 1.379 (5) |
C6—C7 | 1.504 (4) | C16—H16 | 0.9500 |
N1—C12 | 1.487 (4) | C17—C18 | 1.355 (5) |
N1—C7 | 1.488 (4) | C17—H17 | 0.9500 |
N1—C8 | 1.496 (4) | C18—C19 | 1.402 (5) |
C7—H7A | 0.9900 | C18—H18 | 0.9500 |
C7—H7B | 0.9900 | C19—H19 | 0.9500 |
C8—C20 | 1.511 (4) | C20—C25 | 1.384 (4) |
C8—C9 | 1.523 (4) | C20—C21 | 1.395 (4) |
C8—H8 | 1.0000 | C21—C22 | 1.391 (5) |
C9—C10 | 1.523 (5) | C21—H21 | 0.9500 |
C9—H9A | 0.9900 | C22—C23 | 1.374 (5) |
C9—H9B | 0.9900 | C22—H22 | 0.9500 |
C10—C11 | 1.520 (4) | C23—C24 | 1.380 (5) |
C10—H10A | 0.9900 | C23—H23 | 0.9500 |
C10—H10B | 0.9900 | C24—C25 | 1.378 (5) |
C11—C12 | 1.536 (4) | C24—H24 | 0.9500 |
C11—C13 | 1.549 (5) | C25—H25 | 0.9500 |
C2—C1—C6 | 122.7 (4) | C13—C11—H11 | 108.3 |
C2—C1—Cl1 | 117.7 (3) | N1—C12—C14 | 109.9 (2) |
C6—C1—Cl1 | 119.6 (3) | N1—C12—C11 | 112.0 (2) |
C1—C2—C3 | 118.6 (4) | C14—C12—C11 | 109.8 (2) |
C1—C2—H2 | 120.7 | N1—C12—H12 | 108.3 |
C3—C2—H2 | 120.7 | C14—C12—H12 | 108.3 |
C2—C3—C4 | 122.0 (4) | C11—C12—H12 | 108.3 |
C2—C3—H3 | 119.0 | C11—C13—H13A | 109.5 |
C4—C3—H3 | 119.0 | C11—C13—H13B | 109.5 |
C3—C4—C5 | 117.4 (4) | H13A—C13—H13B | 109.5 |
C3—C4—H4 | 121.3 | C11—C13—H13C | 109.5 |
C5—C4—H4 | 121.3 | H13A—C13—H13C | 109.5 |
C6—C5—C4 | 122.2 (4) | H13B—C13—H13C | 109.5 |
C6—C5—H5 | 118.9 | C15—C14—C19 | 118.2 (3) |
C4—C5—H5 | 118.9 | C15—C14—C12 | 120.4 (3) |
C5—C6—C1 | 117.1 (3) | C19—C14—C12 | 121.4 (3) |
C5—C6—C7 | 123.5 (3) | C14—C15—C16 | 121.3 (3) |
C1—C6—C7 | 119.4 (3) | C14—C15—H15 | 119.3 |
C12—N1—C7 | 108.8 (2) | C16—C15—H15 | 119.3 |
C12—N1—C8 | 112.7 (2) | C17—C16—C15 | 120.2 (3) |
C7—N1—C8 | 108.9 (2) | C17—C16—H16 | 119.9 |
N1—C7—C6 | 115.3 (2) | C15—C16—H16 | 119.9 |
N1—C7—H7A | 108.4 | C18—C17—C16 | 119.3 (3) |
C6—C7—H7A | 108.4 | C18—C17—H17 | 120.4 |
N1—C7—H7B | 108.4 | C16—C17—H17 | 120.4 |
C6—C7—H7B | 108.4 | C17—C18—C19 | 120.7 (3) |
H7A—C7—H7B | 107.5 | C17—C18—H18 | 119.6 |
N1—C8—C20 | 110.2 (3) | C19—C18—H18 | 119.6 |
N1—C8—C9 | 111.0 (2) | C14—C19—C18 | 120.2 (3) |
C20—C8—C9 | 111.2 (3) | C14—C19—H19 | 119.9 |
N1—C8—H8 | 108.1 | C18—C19—H19 | 119.9 |
C20—C8—H8 | 108.1 | C25—C20—C21 | 117.6 (3) |
C9—C8—H8 | 108.1 | C25—C20—C8 | 122.3 (3) |
C8—C9—C10 | 110.8 (3) | C21—C20—C8 | 120.1 (3) |
C8—C9—H9A | 109.5 | C22—C21—C20 | 121.1 (3) |
C10—C9—H9A | 109.5 | C22—C21—H21 | 119.4 |
C8—C9—H9B | 109.5 | C20—C21—H21 | 119.4 |
C10—C9—H9B | 109.5 | C23—C22—C21 | 119.9 (3) |
H9A—C9—H9B | 108.1 | C23—C22—H22 | 120.1 |
C11—C10—C9 | 110.0 (3) | C21—C22—H22 | 120.1 |
C11—C10—H10A | 109.7 | C22—C23—C24 | 119.6 (4) |
C9—C10—H10A | 109.7 | C22—C23—H23 | 120.2 |
C11—C10—H10B | 109.7 | C24—C23—H23 | 120.2 |
C9—C10—H10B | 109.7 | C25—C24—C23 | 120.4 (3) |
H10A—C10—H10B | 108.2 | C25—C24—H24 | 119.8 |
C10—C11—C12 | 110.2 (2) | C23—C24—H24 | 119.8 |
C10—C11—C13 | 110.3 (3) | C24—C25—C20 | 121.4 (3) |
C12—C11—C13 | 111.4 (3) | C24—C25—H25 | 119.3 |
C10—C11—H11 | 108.3 | C20—C25—H25 | 119.3 |
C12—C11—H11 | 108.3 | ||
C6—C1—C2—C3 | −0.2 (5) | C10—C11—C12—N1 | 54.7 (4) |
Cl1—C1—C2—C3 | −179.1 (3) | C13—C11—C12—N1 | 177.5 (3) |
C1—C2—C3—C4 | −0.6 (5) | C10—C11—C12—C14 | 177.1 (3) |
C2—C3—C4—C5 | 0.5 (5) | C13—C11—C12—C14 | −60.1 (3) |
C3—C4—C5—C6 | 0.5 (5) | N1—C12—C14—C15 | 52.4 (4) |
C4—C5—C6—C1 | −1.2 (4) | C11—C12—C14—C15 | −71.3 (4) |
C4—C5—C6—C7 | 175.6 (3) | N1—C12—C14—C19 | −129.9 (3) |
C2—C1—C6—C5 | 1.0 (4) | C11—C12—C14—C19 | 106.5 (4) |
Cl1—C1—C6—C5 | 179.9 (2) | C19—C14—C15—C16 | −0.7 (5) |
C2—C1—C6—C7 | −175.9 (3) | C12—C14—C15—C16 | 177.1 (3) |
Cl1—C1—C6—C7 | 3.0 (4) | C14—C15—C16—C17 | −1.3 (6) |
C12—N1—C7—C6 | −131.3 (2) | C15—C16—C17—C18 | 2.0 (6) |
C8—N1—C7—C6 | 105.4 (3) | C16—C17—C18—C19 | −0.8 (6) |
C5—C6—C7—N1 | 11.4 (4) | C15—C14—C19—C18 | 1.9 (5) |
C1—C6—C7—N1 | −171.9 (3) | C12—C14—C19—C18 | −175.9 (3) |
C12—N1—C8—C20 | 177.9 (2) | C17—C18—C19—C14 | −1.2 (6) |
C7—N1—C8—C20 | −61.2 (3) | N1—C8—C20—C25 | −69.8 (4) |
C12—N1—C8—C9 | 54.3 (3) | C9—C8—C20—C25 | 53.7 (4) |
C7—N1—C8—C9 | 175.2 (3) | N1—C8—C20—C21 | 110.8 (3) |
N1—C8—C9—C10 | −56.3 (3) | C9—C8—C20—C21 | −125.7 (3) |
C20—C8—C9—C10 | −179.4 (2) | C25—C20—C21—C22 | 0.9 (5) |
C8—C9—C10—C11 | 58.1 (3) | C8—C20—C21—C22 | −179.6 (3) |
C9—C10—C11—C12 | −56.7 (4) | C20—C21—C22—C23 | −0.6 (5) |
C9—C10—C11—C13 | 179.9 (3) | C21—C22—C23—C24 | 0.1 (5) |
C7—N1—C12—C14 | 62.9 (3) | C22—C23—C24—C25 | 0.1 (5) |
C8—N1—C12—C14 | −176.1 (2) | C23—C24—C25—C20 | 0.2 (5) |
C7—N1—C12—C11 | −174.7 (2) | C21—C20—C25—C24 | −0.8 (5) |
C8—N1—C12—C11 | −53.7 (3) | C8—C20—C25—C24 | 179.8 (3) |
Cg1 is the centroid of the C20–C25 ring. |
D—H···A | D—H | H···A | D···A | D—H···A |
C17—H17···Cg1i | 0.95 | 2.83 | 3.692 (4) | 151 |
Symmetry code: (i) x, y, z+1. |
Experimental details
Crystal data | |
Chemical formula | C25H26ClN |
Mr | 375.92 |
Crystal system, space group | Triclinic, P1 |
Temperature (K) | 100 |
a, b, c (Å) | 10.0878 (7), 10.2837 (5), 11.3583 (7) |
α, β, γ (°) | 94.150 (5), 107.713 (6), 111.065 (5) |
V (Å3) | 1025.32 (11) |
Z | 2 |
Radiation type | Mo Kα |
µ (mm−1) | 0.20 |
Crystal size (mm) | 0.25 × 0.15 × 0.03 |
Data collection | |
Diffractometer | Agilent SuperNova Dual diffractometer with an Atlas detector |
Absorption correction | Multi-scan (CrysAlis PRO; Agilent, 2012) |
Tmin, Tmax | 0.495, 1.000 |
No. of measured, independent and observed [I > 2σ(I)] reflections | 7033, 4678, 2850 |
Rint | 0.034 |
(sin θ/λ)max (Å−1) | 0.651 |
Refinement | |
R[F2 > 2σ(F2)], wR(F2), S | 0.074, 0.185, 1.03 |
No. of reflections | 4678 |
No. of parameters | 244 |
No. of restraints | 12 |
H-atom treatment | H-atom parameters constrained |
Δρmax, Δρmin (e Å−3) | 0.72, −0.47 |
Computer programs: CrysAlis PRO (Agilent, 2012), SHELXS97 (Sheldrick, 2008), SHELXL97 (Sheldrick, 2008), ORTEP-3 for Windows (Farrugia, 1997) and DIAMOND (Brandenburg, 2006), publCIF (Westrip, 2010).
Cg1 is the centroid of the C20–C25 ring. |
D—H···A | D—H | H···A | D···A | D—H···A |
C17—H17···Cg1i | 0.95 | 2.83 | 3.692 (4) | 151 |
Symmetry code: (i) x, y, z+1. |
Footnotes
‡Additional correspondence author, e-mail: ramalinganc@gmail.com.
Acknowledgements
The authors are grateful for facilities provided by the Chairman/Management of Kalasalingam University, and thank the Ministry of Higher Education (Malaysia) for funding structural studies through the High-Impact Research scheme (UM.C/HIR/MOHE/SC/3).
References
Agilent (2012). CrysAlis PRO. Agilent Technologies, Yarnton, England. Google Scholar
Brandenburg, K. (2006). DIAMOND. Crystal Impact GbR, Bonn, Germany. Google Scholar
Farrugia, L. J. (1997). J. Appl. Cryst. 30, 565. CrossRef IUCr Journals Google Scholar
Ramachandran, R., Rani, M., Senthan, S., Jeong, Y.-T. & Kabilan, S. (2011). Eur. J. Med. Chem. 46, 1926–1934. Web of Science CSD CrossRef CAS PubMed Google Scholar
Ramalingan, C., Balasubramanian, S., Kabilan, S. & Vasudevan, M. (2004). Eur. J. Med. Chem. 39, 527–533. Web of Science CrossRef PubMed CAS Google Scholar
Ramalingan, C., Ng, S. W. & Tiekink, E. R. T. (2012). Acta Cryst. E68, o2301–o2302. CrossRef IUCr Journals Google Scholar
Sheldrick, G. M. (2008). Acta Cryst. A64, 112–122. Web of Science CrossRef CAS IUCr Journals Google Scholar
Westrip, S. P. (2010). J. Appl. Cryst. 43, 920–925. 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.
Piperidine derivatives are an important class of heterocyclic compounds with potential applications in medicinal chemistry as these can be frequently recognized in the structures of various synthetic targets as well as naturally occurring alkaloids (Ramalingan et al., 2004; Ramachandran et al., 2011). The title compound, (I), was designed and synthesized to evaluate its biological properties. The crystal structure determination was undertaken in order to establish conformational details.
In (I), Fig. 1, the piperidine ring has a chair conformation and all ring-substituents occupy equatorial positions. The dihedral angle formed between the C1–C6 benzene ring and the flanking C14–C19 and C20–C25 phenyl rings are 74.91 (18) and 47.86 (17)°, respectively; the dihedral angle between the phenyl rings is 58.93 (18)°. In a comparable molecule, having an extra C-bound methyl group (Ramalingan et al., 2012), these substituents were found to occupy the same positions. The chloro substituent is anti to the piperidine-N atom.
In the crystal packing, centrosymmetrically related molecules aggregate via π—π interactions occurring between chlorobenzene rings [inter-centroid distance = 3.778 (2) Å for symmetry operation 2 - x, 1 - y, 1 - z]. These are linked into linear supramolecular chains along the a axis by C—H···π interactions whereby a phenyl-H17 atom associates with the C20—C25 ring, Fig. 2 and Table 1. Chains aggregate into layers in the ab plane without specific intermolecular interactions between them, Fig. 3.