organic compounds
N,N-Dimethyl-4-(pyren-1-yl)aniline
aFS–SCS, Deutsches Elecktronen-Synchrotron (DESY), Notkestrasse 85, 22607 Hamburg, Germany, bMax Planck Institute for Biophysical Chemistry, Am Fassberg 11, 37077 Göttingen, Germany, and cFS–PS, Deutsches Elecktronen-Synchrotron (DESY), Notkestrasse 85, 22607 Hamburg, Germany
*Correspondence e-mail: sreevidya.thekku.veedu@desy.de, simone.techert@desy.de
In the title compound, C24H19N, the dimethylamino group is inclined to the benzene ring by 2.81 (9)°. Their mean plane makes a dihedral angle of 64.12 (2)° with the mean plane of the pyrene ring system [r.m.s. deviation = 0.031 (1) Å]. In the crystal, molecules are linked via C—H⋯π interactions, which connect neighbouring molecules into columns along the c axis.
CCDC reference: 974735
Related literature
For charge transfer involving donor and acceptor molecules, see: Wasielewski (1992); Willemse et al. (2000). For a related structure, N,N-Diphenyl-4-(pyren-1-yl)aniline, see: Wang et al. (2010). For the synthesis of the title compound, see: Dewar & Mole (1956); Norman et al. (1958). For standard bond lengths, see. Allen et al. (1987).
Experimental
Crystal data
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Data collection: XDS (Kabsch, 1993); cell XDS; data reduction: XDS; program(s) used to solve structure: SHELXS97 (Sheldrick, 2008); program(s) used to refine structure: SHELXL2013 (Sheldrick, 2008); molecular graphics: SHELXTL (Sheldrick, 2008); software used to prepare material for publication: PLATON (Spek, 2009).
Supporting information
CCDC reference: 974735
https://doi.org/10.1107/S1600536813032698/su2671sup1.cif
contains datablocks global, I. DOI:Structure factors: contains datablock I. DOI: https://doi.org/10.1107/S1600536813032698/su2671Isup2.hkl
Supporting information file. DOI: https://doi.org/10.1107/S1600536813032698/su2671Isup3.cml
Commercially available 1-aminopyrene after diazotization reaction was coupled with N,N-dimethylaniline according to the previously reported procedure (Dewar & Mole, 1956; Norman et al., 1958). The crude product was then purified on an aluminium oxide column with a mixture of cyclohexane/toluene as
and applying HPLC. Block-like colourless crystals of the title compound were obtained by crystallization from ethyl acetate/diethyl ether (2:1) by slow evaporation.The C-bound H-atoms were included in calculated positions and treated as riding atoms: C—H = 0.95 and 0.98 Å for CH and CH3 H-atoms, respectively, with Uiso(H) = 1.5Ueq(C-methyl) and = 1.2Ueq(C) for other H atoms.
Electron donor acceptor molecules play an important role in the understanding of charge transfer processes. In the past decades, in order to gain more insight into
processes, extensive studies have been carried out on the optical behavior of systems consisting of donor acceptor groups linked by different bridges (Wasielewski, 1992; Willemse et al., 2000). These molecules are also ideal systems for studying the solvation dynamics and also for the demonstration of non-linear optical properties. Pyrene-N,N-dimethylaniline (PyDMA), is a compound in which the N,N-dimethylaniline (DMA) is covalently linked to the pyrene. Due to the lack of an extended bridge between the donor and acceptor in PyDMA, the physical characteristics of these groups strongly influence the mechanism. This leads to a very unusual absorption and emission spectra in the optical regime and because of this PyDMA is considered to be a molecular diode where and moieties are twisted against each other modulating the transfer processes.The title compound, Fig. 1, is a pyrene derivative. The bond lengths (Allen et al., 1987) and angles are within the normal ranges and are comparable to those reported for a similar structure, N,N-Diphenyl-4-(pyren-1-yl)aniline (Wang et al., 2010). The dimethylamine group and the benzene ring are almost coplanar (dihedral angle = 2.81 (9) °) and their mean plane makes a dihedral angle of 64.12 (2) ° with the pyrene ring system [r.m.s.d. = 0.031 (1) Å].
In the crystal, packing is stabilized by C—H···π interactions (Table 1). The interaction C23—H52A···Cg3i (see Table 1; Cg3 is the centroid of the C10-C13/C18/C19 ring) connects neighbouring molecules into columns along the c-axis (Fig. 2).
For charge transfer involving donor and acceptor molecules, see: Wasielewski (1992); Willemse et al. (2000). For a related structure, N,N-Diphenyl-4-(pyren-1-yl)aniline, see: Wang et al. (2010). For the synthesis of the title compound, see: Dewar & Mole (1956); Norman et al. (1958). For standard bond lengths, see. Allen et al. (1987).
Data collection: XDS (Kabsch, 1993); cell
XDS (Kabsch, 1993); data reduction: XDS (Kabsch, 1993); program(s) used to solve structure: SHELXS97 (Sheldrick, 2008); program(s) used to refine structure: SHELXL2013 (Sheldrick, 2008); molecular graphics: SHELXTL (Sheldrick, 2008); software used to prepare material for publication: PLATON (Spek, 2009).Fig. 1. The molecular structure of the title molecule, with atom labelling. Displacement ellipsoids are drawn at the 50% probability level. | |
Fig. 2. The crystal packing of the title compound, viewed along the a axis, showing molecules linked by C—H···π interactions (dashed lines; see Table 1 for details). |
C24H19N | F(000) = 680 |
Mr = 321.40 | Dx = 1.305 Mg m−3 |
Monoclinic, P21/c | Synchrotron radiation, λ = 0.600 Å |
a = 6.1270 (12) Å | Cell parameters from 2549 reflections |
b = 30.686 (6) Å | θ = 2.5–26.7° |
c = 9.478 (3) Å | µ = 0.08 mm−1 |
β = 113.35 (2)° | T = 100 K |
V = 1636.0 (8) Å3 | Block, colourless |
Z = 4 | 0.30 × 0.15 × 0.10 mm |
Huber diffractometer with a Mar CCD detector | 4806 reflections with I > 2σ(I) |
Radiation source: synchrotron | Rint = 0.063 |
φ and ω scan | θmax = 27.0°, θmin = 2.1° |
Absorption correction: multi-scan (SADABS; Bruker, 2005) | h = −8→9 |
Tmin = 0.978, Tmax = 0.993 | k = −44→45 |
47866 measured reflections | l = −14→14 |
5872 independent 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)] = 0.047 | Hydrogen site location: inferred from neighbouring sites |
wR(F2) = 0.135 | H-atom parameters constrained |
S = 1.08 | w = 1/[σ2(Fo2) + (0.0707P)2 + 0.2446P] where P = (Fo2 + 2Fc2)/3 |
5872 reflections | (Δ/σ)max < 0.001 |
228 parameters | Δρmax = 0.40 e Å−3 |
0 restraints | Δρmin = −0.23 e Å−3 |
C24H19N | V = 1636.0 (8) Å3 |
Mr = 321.40 | Z = 4 |
Monoclinic, P21/c | Synchrotron radiation, λ = 0.600 Å |
a = 6.1270 (12) Å | µ = 0.08 mm−1 |
b = 30.686 (6) Å | T = 100 K |
c = 9.478 (3) Å | 0.30 × 0.15 × 0.10 mm |
β = 113.35 (2)° |
Huber diffractometer with a Mar CCD detector | 5872 independent reflections |
Absorption correction: multi-scan (SADABS; Bruker, 2005) | 4806 reflections with I > 2σ(I) |
Tmin = 0.978, Tmax = 0.993 | Rint = 0.063 |
47866 measured reflections |
R[F2 > 2σ(F2)] = 0.047 | 0 restraints |
wR(F2) = 0.135 | H-atom parameters constrained |
S = 1.08 | Δρmax = 0.40 e Å−3 |
5872 reflections | Δρmin = −0.23 e Å−3 |
228 parameters |
Geometry. Bond distances, angles etc. have been calculated using the rounded fractional coordinates. All su's are estimated from the variances of the (full) variance-covariance matrix. The cell esds are taken into account in the estimation of distances, angles and torsion angles |
x | y | z | Uiso*/Ueq | ||
N1 | 0.83448 (13) | 0.39409 (2) | 0.82389 (9) | 0.0218 (2) | |
C1 | 0.89994 (14) | 0.35082 (3) | 0.85268 (9) | 0.0180 (2) | |
C2 | 1.05726 (15) | 0.33134 (3) | 0.79588 (10) | 0.0198 (2) | |
C3 | 1.11516 (15) | 0.28751 (3) | 0.82171 (10) | 0.0199 (2) | |
C4 | 1.01916 (14) | 0.26098 (3) | 0.90243 (9) | 0.0187 (2) | |
C5 | 0.86753 (15) | 0.28065 (3) | 0.96166 (10) | 0.0201 (2) | |
C6 | 0.80935 (15) | 0.32448 (3) | 0.93886 (10) | 0.0197 (2) | |
C7 | 1.07388 (14) | 0.21366 (3) | 0.92100 (9) | 0.0184 (2) | |
C8 | 1.30833 (15) | 0.19960 (3) | 0.99985 (10) | 0.0207 (2) | |
C9 | 1.36781 (15) | 0.15583 (3) | 1.01804 (10) | 0.0214 (2) | |
C10 | 1.19330 (14) | 0.12377 (3) | 0.95599 (9) | 0.0193 (2) | |
C11 | 1.24827 (15) | 0.07810 (3) | 0.97107 (10) | 0.0222 (2) | |
C12 | 1.07813 (16) | 0.04746 (3) | 0.90639 (10) | 0.0226 (2) | |
C13 | 0.83518 (15) | 0.05968 (3) | 0.81869 (10) | 0.0207 (2) | |
C14 | 0.65740 (17) | 0.02878 (3) | 0.74593 (11) | 0.0250 (2) | |
C15 | 0.42488 (17) | 0.04181 (3) | 0.66041 (11) | 0.0266 (2) | |
C16 | 0.36320 (16) | 0.08558 (3) | 0.64636 (10) | 0.0236 (2) | |
C17 | 0.53509 (15) | 0.11768 (3) | 0.71636 (9) | 0.0194 (2) | |
C18 | 0.77440 (14) | 0.10477 (3) | 0.80332 (9) | 0.0184 (2) | |
C19 | 0.95341 (14) | 0.13704 (3) | 0.87271 (9) | 0.0176 (2) | |
C20 | 0.89286 (14) | 0.18211 (3) | 0.85573 (9) | 0.0176 (2) | |
C21 | 0.64894 (14) | 0.19381 (3) | 0.76703 (10) | 0.0193 (2) | |
C22 | 0.47894 (14) | 0.16319 (3) | 0.70109 (10) | 0.0204 (2) | |
C23 | 0.94074 (16) | 0.42139 (3) | 0.74417 (11) | 0.0248 (2) | |
C24 | 0.67405 (16) | 0.41312 (3) | 0.88441 (11) | 0.0249 (2) | |
H2 | 1.12420 | 0.34840 | 0.73940 | 0.0240* | |
H3 | 1.22310 | 0.27520 | 0.78340 | 0.0240* | |
H5 | 0.80260 | 0.26350 | 1.01910 | 0.0240* | |
H6 | 0.70730 | 0.33690 | 0.98170 | 0.0240* | |
H8 | 1.43040 | 0.22070 | 1.04220 | 0.0250* | |
H9 | 1.52870 | 0.14750 | 1.07320 | 0.0260* | |
H11 | 1.40770 | 0.06910 | 1.02770 | 0.0270* | |
H12 | 1.12010 | 0.01750 | 0.91920 | 0.0270* | |
H14 | 0.69630 | −0.00130 | 0.75520 | 0.0300* | |
H15 | 0.30680 | 0.02050 | 0.61100 | 0.0320* | |
H16 | 0.20290 | 0.09390 | 0.58870 | 0.0280* | |
H21 | 0.60590 | 0.22370 | 0.75430 | 0.0230* | |
H22 | 0.31970 | 0.17210 | 0.64370 | 0.0240* | |
H52A | 0.90310 | 0.40970 | 0.64090 | 0.0370* | |
H52B | 1.11360 | 0.42200 | 0.80130 | 0.0370* | |
H52C | 0.87760 | 0.45110 | 0.73620 | 0.0370* | |
H52D | 0.63160 | 0.44270 | 0.84360 | 0.0370* | |
H52E | 0.75170 | 0.41430 | 0.99680 | 0.0370* | |
H52F | 0.52990 | 0.39530 | 0.85400 | 0.0370* |
U11 | U22 | U33 | U12 | U13 | U23 | |
N1 | 0.0259 (3) | 0.0181 (3) | 0.0254 (4) | 0.0010 (3) | 0.0143 (3) | 0.0023 (3) |
C1 | 0.0195 (3) | 0.0180 (4) | 0.0158 (3) | −0.0010 (3) | 0.0064 (3) | −0.0002 (3) |
C2 | 0.0232 (3) | 0.0206 (4) | 0.0181 (3) | −0.0012 (3) | 0.0109 (3) | 0.0008 (3) |
C3 | 0.0229 (3) | 0.0208 (4) | 0.0188 (4) | −0.0002 (3) | 0.0112 (3) | −0.0007 (3) |
C4 | 0.0211 (3) | 0.0185 (4) | 0.0169 (3) | −0.0010 (3) | 0.0080 (3) | −0.0008 (3) |
C5 | 0.0242 (4) | 0.0194 (4) | 0.0198 (4) | −0.0015 (3) | 0.0121 (3) | 0.0004 (3) |
C6 | 0.0226 (3) | 0.0196 (4) | 0.0197 (4) | 0.0001 (3) | 0.0114 (3) | 0.0000 (3) |
C7 | 0.0219 (3) | 0.0189 (4) | 0.0159 (3) | −0.0004 (3) | 0.0092 (3) | −0.0006 (3) |
C8 | 0.0210 (3) | 0.0224 (4) | 0.0186 (4) | −0.0012 (3) | 0.0079 (3) | −0.0019 (3) |
C9 | 0.0204 (3) | 0.0245 (4) | 0.0186 (3) | 0.0019 (3) | 0.0070 (3) | −0.0001 (3) |
C10 | 0.0218 (3) | 0.0210 (4) | 0.0155 (3) | 0.0023 (3) | 0.0077 (3) | 0.0008 (3) |
C11 | 0.0244 (4) | 0.0226 (4) | 0.0194 (4) | 0.0045 (3) | 0.0085 (3) | 0.0018 (3) |
C12 | 0.0293 (4) | 0.0192 (4) | 0.0201 (4) | 0.0043 (3) | 0.0107 (3) | 0.0016 (3) |
C13 | 0.0271 (4) | 0.0188 (4) | 0.0168 (3) | 0.0007 (3) | 0.0092 (3) | 0.0004 (3) |
C14 | 0.0319 (4) | 0.0184 (4) | 0.0239 (4) | −0.0022 (3) | 0.0103 (3) | −0.0006 (3) |
C15 | 0.0300 (4) | 0.0219 (4) | 0.0251 (4) | −0.0054 (3) | 0.0079 (3) | −0.0012 (3) |
C16 | 0.0239 (4) | 0.0233 (4) | 0.0215 (4) | −0.0025 (3) | 0.0067 (3) | 0.0001 (3) |
C17 | 0.0224 (4) | 0.0201 (4) | 0.0157 (3) | −0.0006 (3) | 0.0076 (3) | 0.0005 (3) |
C18 | 0.0225 (3) | 0.0185 (4) | 0.0145 (3) | 0.0001 (3) | 0.0078 (3) | 0.0003 (3) |
C19 | 0.0216 (3) | 0.0180 (4) | 0.0139 (3) | 0.0011 (3) | 0.0079 (3) | 0.0002 (3) |
C20 | 0.0213 (3) | 0.0183 (4) | 0.0143 (3) | 0.0009 (3) | 0.0082 (3) | 0.0005 (3) |
C21 | 0.0219 (3) | 0.0189 (4) | 0.0170 (3) | 0.0023 (3) | 0.0077 (3) | 0.0014 (3) |
C22 | 0.0210 (3) | 0.0218 (4) | 0.0177 (3) | 0.0016 (3) | 0.0070 (3) | 0.0014 (3) |
C23 | 0.0285 (4) | 0.0222 (4) | 0.0263 (4) | 0.0006 (3) | 0.0138 (3) | 0.0056 (3) |
C24 | 0.0290 (4) | 0.0222 (4) | 0.0269 (4) | 0.0045 (3) | 0.0148 (3) | 0.0023 (3) |
N1—C1 | 1.3826 (12) | C17—C22 | 1.4318 (14) |
N1—C23 | 1.4445 (13) | C18—C19 | 1.4298 (13) |
N1—C24 | 1.4433 (14) | C19—C20 | 1.4244 (14) |
C1—C2 | 1.4098 (14) | C20—C21 | 1.4399 (14) |
C1—C6 | 1.4099 (14) | C21—C22 | 1.3573 (14) |
C2—C3 | 1.3878 (14) | C2—H2 | 0.9500 |
C3—C4 | 1.3967 (14) | C3—H3 | 0.9500 |
C4—C5 | 1.3986 (14) | C5—H5 | 0.9500 |
C4—C7 | 1.4850 (14) | C6—H6 | 0.9500 |
C5—C6 | 1.3862 (14) | C8—H8 | 0.9500 |
C7—C8 | 1.3990 (14) | C9—H9 | 0.9500 |
C7—C20 | 1.4164 (14) | C11—H11 | 0.9500 |
C8—C9 | 1.3845 (14) | C12—H12 | 0.9500 |
C9—C10 | 1.3995 (14) | C14—H14 | 0.9500 |
C10—C11 | 1.4352 (14) | C15—H15 | 0.9500 |
C10—C19 | 1.4246 (13) | C16—H16 | 0.9500 |
C11—C12 | 1.3565 (14) | C21—H21 | 0.9500 |
C12—C13 | 1.4375 (15) | C22—H22 | 0.9500 |
C13—C14 | 1.4020 (14) | C23—H52A | 0.9800 |
C13—C18 | 1.4253 (14) | C23—H52B | 0.9800 |
C14—C15 | 1.3897 (16) | C23—H52C | 0.9800 |
C15—C16 | 1.3873 (14) | C24—H52D | 0.9800 |
C16—C17 | 1.4020 (14) | C24—H52E | 0.9800 |
C17—C18 | 1.4241 (14) | C24—H52F | 0.9800 |
C1—N1—C23 | 120.30 (8) | C20—C21—C22 | 121.72 (9) |
C1—N1—C24 | 120.01 (8) | C17—C22—C21 | 121.26 (9) |
C23—N1—C24 | 119.50 (7) | C1—C2—H2 | 120.00 |
N1—C1—C2 | 121.37 (8) | C3—C2—H2 | 120.00 |
N1—C1—C6 | 120.99 (9) | C2—C3—H3 | 119.00 |
C2—C1—C6 | 117.64 (9) | C4—C3—H3 | 119.00 |
C1—C2—C3 | 120.61 (9) | C4—C5—H5 | 119.00 |
C2—C3—C4 | 121.86 (9) | C6—C5—H5 | 119.00 |
C3—C4—C5 | 117.34 (9) | C1—C6—H6 | 120.00 |
C3—C4—C7 | 120.70 (8) | C5—C6—H6 | 120.00 |
C5—C4—C7 | 121.95 (8) | C7—C8—H8 | 119.00 |
C4—C5—C6 | 121.79 (9) | C9—C8—H8 | 119.00 |
C1—C6—C5 | 120.70 (9) | C8—C9—H9 | 120.00 |
C4—C7—C8 | 120.05 (8) | C10—C9—H9 | 120.00 |
C4—C7—C20 | 121.04 (8) | C10—C11—H11 | 119.00 |
C8—C7—C20 | 118.88 (9) | C12—C11—H11 | 119.00 |
C7—C8—C9 | 121.98 (9) | C11—C12—H12 | 120.00 |
C8—C9—C10 | 120.67 (9) | C13—C12—H12 | 120.00 |
C9—C10—C11 | 122.31 (9) | C13—C14—H14 | 120.00 |
C9—C10—C19 | 118.72 (9) | C15—C14—H14 | 120.00 |
C11—C10—C19 | 118.96 (8) | C14—C15—H15 | 120.00 |
C10—C11—C12 | 121.59 (9) | C16—C15—H15 | 120.00 |
C11—C12—C13 | 120.98 (9) | C15—C16—H16 | 120.00 |
C12—C13—C14 | 122.18 (9) | C17—C16—H16 | 120.00 |
C12—C13—C18 | 118.76 (8) | C20—C21—H21 | 119.00 |
C14—C13—C18 | 119.06 (9) | C22—C21—H21 | 119.00 |
C13—C14—C15 | 120.62 (9) | C17—C22—H22 | 119.00 |
C14—C15—C16 | 120.79 (9) | C21—C22—H22 | 119.00 |
C15—C16—C17 | 120.65 (9) | N1—C23—H52A | 109.00 |
C16—C17—C18 | 119.11 (9) | N1—C23—H52B | 110.00 |
C16—C17—C22 | 122.15 (9) | N1—C23—H52C | 109.00 |
C18—C17—C22 | 118.74 (8) | H52A—C23—H52B | 109.00 |
C13—C18—C17 | 119.77 (8) | H52A—C23—H52C | 109.00 |
C13—C18—C19 | 120.24 (8) | H52B—C23—H52C | 109.00 |
C17—C18—C19 | 119.98 (8) | N1—C24—H52D | 109.00 |
C10—C19—C18 | 119.46 (8) | N1—C24—H52E | 109.00 |
C10—C19—C20 | 120.36 (8) | N1—C24—H52F | 109.00 |
C18—C19—C20 | 120.17 (8) | H52D—C24—H52E | 109.00 |
C7—C20—C19 | 119.37 (8) | H52D—C24—H52F | 109.00 |
C7—C20—C21 | 122.44 (9) | H52E—C24—H52F | 109.00 |
C19—C20—C21 | 118.14 (8) | ||
C23—N1—C1—C2 | −4.74 (13) | C11—C10—C19—C20 | 179.94 (8) |
C23—N1—C1—C6 | 175.91 (8) | C10—C11—C12—C13 | 0.52 (14) |
C24—N1—C1—C2 | −179.66 (8) | C11—C12—C13—C14 | 177.63 (9) |
C24—N1—C1—C6 | 0.99 (13) | C11—C12—C13—C18 | −1.31 (14) |
N1—C1—C2—C3 | −177.93 (8) | C12—C13—C14—C15 | −179.17 (9) |
C6—C1—C2—C3 | 1.44 (13) | C18—C13—C14—C15 | −0.23 (14) |
N1—C1—C6—C5 | 177.17 (9) | C12—C13—C18—C17 | 179.69 (8) |
C2—C1—C6—C5 | −2.20 (13) | C12—C13—C18—C19 | 0.73 (13) |
C1—C2—C3—C4 | 0.79 (14) | C14—C13—C18—C17 | 0.72 (13) |
C2—C3—C4—C5 | −2.22 (13) | C14—C13—C18—C19 | −178.25 (9) |
C2—C3—C4—C7 | 176.62 (8) | C13—C14—C15—C16 | −0.61 (15) |
C3—C4—C5—C6 | 1.44 (13) | C14—C15—C16—C17 | 0.95 (15) |
C7—C4—C5—C6 | −177.39 (8) | C15—C16—C17—C18 | −0.44 (13) |
C3—C4—C7—C8 | 62.00 (11) | C15—C16—C17—C22 | 178.41 (9) |
C3—C4—C7—C20 | −115.98 (10) | C16—C17—C18—C13 | −0.39 (13) |
C5—C4—C7—C8 | −119.22 (10) | C16—C17—C18—C19 | 178.58 (8) |
C5—C4—C7—C20 | 62.80 (11) | C22—C17—C18—C13 | −179.28 (8) |
C4—C5—C6—C1 | 0.77 (14) | C22—C17—C18—C19 | −0.31 (12) |
C4—C7—C8—C9 | −179.10 (8) | C16—C17—C22—C21 | −178.57 (9) |
C20—C7—C8—C9 | −1.07 (13) | C18—C17—C22—C21 | 0.30 (13) |
C4—C7—C20—C19 | 178.40 (8) | C13—C18—C19—C10 | 0.63 (12) |
C4—C7—C20—C21 | 0.82 (13) | C13—C18—C19—C20 | 179.27 (8) |
C8—C7—C20—C19 | 0.39 (12) | C17—C18—C19—C10 | −178.34 (8) |
C8—C7—C20—C21 | −177.19 (8) | C17—C18—C19—C20 | 0.30 (12) |
C7—C8—C9—C10 | 0.64 (14) | C10—C19—C20—C7 | 0.69 (12) |
C8—C9—C10—C11 | 179.36 (9) | C10—C19—C20—C21 | 178.38 (8) |
C8—C9—C10—C19 | 0.47 (13) | C18—C19—C20—C7 | −177.94 (8) |
C9—C10—C11—C12 | −178.03 (9) | C18—C19—C20—C21 | −0.26 (12) |
C19—C10—C11—C12 | 0.86 (13) | C7—C20—C21—C22 | 177.84 (9) |
C9—C10—C19—C18 | 177.52 (8) | C19—C20—C21—C22 | 0.24 (13) |
C9—C10—C19—C20 | −1.12 (12) | C20—C21—C22—C17 | −0.26 (14) |
C11—C10—C19—C18 | −1.41 (12) |
Cg1, Cg2, Cg3, Cg4 and Cg5 are the centroids of the C1–C6, C7–C10/C19/C20, C10–C13/C18/C19, C13–C18 and C17–C22 rings, respectively. |
D—H···A | D—H | H···A | D···A | D—H···A |
C2—H2···Cg2i | 0.95 | 2.93 | 3.6043 (15) | 129 |
C6—H6···Cg5ii | 0.95 | 2.90 | 3.6495 (15) | 137 |
C22—H22···Cg1iii | 0.95 | 2.68 | 3.5499 (15) | 152 |
C23—H52A···Cg3i | 0.98 | 2.74 | 3.5994 (15) | 147 |
C24—H52E···Cg4ii | 0.98 | 2.77 | 3.5284 (15) | 135 |
Symmetry codes: (i) x, −y+1/2, z−1/2; (ii) x, −y+1/2, z+1/2; (iii) x−1, −y+1/2, z−1/2. |
Cg1, Cg2, Cg3, Cg4 and Cg5 are the centroids of the C1–C6, C7–C10/C19/C20, C10–C13/C18/C19, C13–C18 and C17–C22 rings, respectively. |
D—H···A | D—H | H···A | D···A | D—H···A |
C2—H2···Cg2i | 0.95 | 2.93 | 3.6043 (15) | 129 |
C6—H6···Cg5ii | 0.95 | 2.90 | 3.6495 (15) | 137 |
C22—H22···Cg1iii | 0.95 | 2.68 | 3.5499 (15) | 152 |
C23—H52A···Cg3i | 0.98 | 2.74 | 3.5994 (15) | 147 |
C24—H52E···Cg4ii | 0.98 | 2.77 | 3.5284 (15) | 135 |
Symmetry codes: (i) x, −y+1/2, z−1/2; (ii) x, −y+1/2, z+1/2; (iii) x−1, −y+1/2, z−1/2. |
Acknowledgements
ST thanks the DFG, SFB 755 and SFB 1073 for financial support. STV thanks G. Busse and L. Busse for technical help.
References
Allen, F. H., Kennard, O., Watson, D. G., Brammer, L., Orpen, A. G. & Taylor, R. (1987). J. Chem. Soc. Perkin Trans. 2, pp. S1–19. CSD CrossRef Web of Science Google Scholar
Bruker (2005). SADABS. Bruker AXS Inc., Madison, Wisconsin, USA. Google Scholar
Dewar, M. J. S. & Mole, T. (1956). J. Chem. Soc. 7, 1441–1443. CrossRef Web of Science Google Scholar
Kabsch, W. (1993). J. Appl. Cryst. 26, 795–800. CrossRef CAS Web of Science IUCr Journals Google Scholar
Norman, R. O. C., Thompson, G. A. & Waters, W. A. (1958). J. Chem. Soc. 12, 175–179. CrossRef Web of Science Google Scholar
Sheldrick, G. M. (2008). Acta Cryst. A64, 112–122. Web of Science CrossRef CAS IUCr Journals Google Scholar
Spek, A. L. (2009). Acta Cryst. D65, 148–155. Web of Science CrossRef CAS IUCr Journals Google Scholar
Wang, Z.-Q., Zhang, R., Sun, X.-J., Zhang, Y.-P., Xu, Y. & Xu, C. (2010). Z. Kristallogr. New Cryst. Struct. 225, 573–575. CAS Google Scholar
Wasielewski, M. R. (1992). Chem. Rev. 92, 435–461. CrossRef CAS Web of Science Google Scholar
Willemse, R. J., Piet, J. J., Warman, J. M., Hartl, F., Verhoeven, J. W. & Brouwer, A. M. (2000). J. Am. Chem. Soc. 122, 3721–3730. Web of Science CSD CrossRef CAS Google Scholar
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Electron donor acceptor molecules play an important role in the understanding of charge transfer processes. In the past decades, in order to gain more insight into electron transfer processes, extensive studies have been carried out on the optical behavior of systems consisting of donor acceptor groups linked by different bridges (Wasielewski, 1992; Willemse et al., 2000). These molecules are also ideal systems for studying the solvation dynamics and also for the demonstration of non-linear optical properties. Pyrene-N,N-dimethylaniline (PyDMA), is a compound in which the electron donor N,N-dimethylaniline (DMA) is covalently linked to the electron acceptor pyrene. Due to the lack of an extended bridge between the donor and acceptor in PyDMA, the physical characteristics of these groups strongly influence the electron transfer mechanism. This leads to a very unusual absorption and emission spectra in the optical regime and because of this PyDMA is considered to be a molecular diode where electron donor and electron acceptor moieties are twisted against each other modulating the electron charge transfer processes.
The title compound, Fig. 1, is a pyrene derivative. The bond lengths (Allen et al., 1987) and angles are within the normal ranges and are comparable to those reported for a similar structure, N,N-Diphenyl-4-(pyren-1-yl)aniline (Wang et al., 2010). The dimethylamine group and the benzene ring are almost coplanar (dihedral angle = 2.81 (9) °) and their mean plane makes a dihedral angle of 64.12 (2) ° with the pyrene ring system [r.m.s.d. = 0.031 (1) Å].
In the crystal, packing is stabilized by C—H···π interactions (Table 1). The interaction C23—H52A···Cg3i (see Table 1; Cg3 is the centroid of the C10-C13/C18/C19 ring) connects neighbouring molecules into columns along the c-axis (Fig. 2).