organic compounds
(E)-2-{2-tert-Butyl-6-[2-(4-hydroxyphenyl)ethenyl]-1-propyl-1,4-dihydropyridin-4-ylidene}indane-1,3-dione
aSchool of Applied Chemical Engineering, Chonnam National University, Gwangju 500-757, Republic of Korea
*Correspondence e-mail: hyungkim@chonnam.ac.kr
The title compound, C29H29NO3, the nearly planar nine-membered indanedione ring [maximum deviation = 0.027 (2) Å] is located approximately parallel to its carrier pyridine ring [maximum deviation = 0.021 (2) Å] with a dihedral angle of 1.8 (1)° between the planes. However, because of the benzene ring [maximum deviation = 0.006 (2) Å] is not parallel to the pyridine ring [dihedral angle = 37.29 (8)°]. The molecules display numerous intermolecular π–π interactions between the five- and six-membered rings, the shortest centroid–centroid distance being 3.796 (2) Å. There are inter- and intramolecular O—H⋯O and C—H⋯O hydrogen bonds.
Related literature
For the synthesis of the starting material, see: Yao et al. (2006a). For the synthesis of the title compound, see: Peng et al. (2006). For background to luminescent materials, see: Andreu et al. (2009); Kim et al. (2004); Yao et al. (2006a,b).
Experimental
Crystal data
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Refinement
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Data collection: SMART (Bruker, 2000); cell SAINT (Bruker, 2000); data reduction: SAINT; program(s) used to solve structure: SHELXS97 (Sheldrick, 2008); program(s) used to refine structure: SHELXL97 (Sheldrick, 2008); molecular graphics: ORTEP-3 (Farrugia, 1997) and PLATON (Spek, 2009); software used to prepare material for publication: SHELXL97.
Supporting information
https://doi.org/10.1107/S1600536810051044/pb2048sup1.cif
contains datablocks global, I. DOI:Structure factors: contains datablock I. DOI: https://doi.org/10.1107/S1600536810051044/pb2048Isup2.hkl
A mixture of 2-(2-tert-butyl-6-methyl-4H-pyran-4-ylidene)-1H-indene-1,3(2H)-dione (900 mg, 7.13 mmol) and propylamine (15 ml) was heated at 150 °C for 3 h. The mixture was cooled and concentrated under vacuum. The residue was crystallized from CHCl3 to give 2-(2-tert-butyl-6-methyl-1-propylpyridin-4(1H)-ylidene)-1H-indene-1,3(2H)-dione (750 mg, 73%). A mixture of 2-(2-tert-butyl-6-methyl-1-propylpyridin-4(1H)-ylidene)-1H-indene-1,3(2H)-dione (500 mg, 1.5 mmol), 4-hydroxybenzaldehyde (364 mg, 3.0 mmol), piperidine (600 mg, 7.0 mmol), n-butanol (10 ml) and molecular sieve (4 Å, 3 g) was heated in a sealed tube at 140 °C for 12 h. The reaction mixture was filtered and the filtrate was concentrated under vacuum to give crude product, which was chromatographed on SiO2 eluting with a mixture of CHCl3/acetone (10:1) solution to afford the title compound (130 mg, 20%) as a yellow solid. Crystals suitable for X-ray analysis were obtained by slow evaporation from a CHCl3/EtOH solution at room temperature. Mp 211 °C (dec.). 1H NMR (300 MHz, DMSO-d6): δ 9.94 (s, 1H, OH), 8.91 (d, 1H, J = 1.85 Hz, C—CH=C—N), 8.81 (d, 1H, J = 1.85 Hz, C—CH=C—N), 7.62–6.84 (m, 10H, Ar), 7.42 (d, 1H, J = 15.6 Hz, HC=CH—C6H4OH), 7.22 (d, 1H, J = 15.6 Hz, HC=CH-C6H4OH), 4.48 (t, 2H, J = 8.1 Hz, NCH2CH2CH3), 2.0 (m, 2H, NCH2CH2CH3), 1.53 [s, 9H, –C(CH3)3], 0.88 (t, 3H, J = 7.2 Hz, NCH2CH2CH3). 13C NMR (75 MHz, DMSO-d6): δ 190.5, 158.6, 158.5, 151.9, 148.4, 139.3, 137.5, 131.2, 128.9, 126.1, 118.8, 117.8, 118.0, 115.2, 113.1, 112.9, 51.1, 36.7, 30.2, 22.9, 9.8.
H atoms were positioned geometrically and allowed to ride on their respective parent atoms [C—H = 0.95 (CH), 0.99 (CH2) or 0.98 Å (CH3) and O—H = 0.84 Å, and Uiso(H) = 1.2Ueq(C) or 1.5Ueq(methyl C, O)].
Indene-1,3(2H)-dione moiety is used as a strong
for luminescent materials such as organic light-emitting diodes (OLED) (Yao et al., 2006a,b; Andreu et al., 2009; Kim et al., 2004). For the purpose of finding a pH-sensing luminescent dye, we designed the title compound which includes indene-1,3(2H)-dione moiety conjugated with 1,4-dihydropyridine ring possessing a 4-hydroxystyryl group. The title compound was synthesized by the Knoevenagel condensation of 2-(2-tert-butyl-6-methyl-1-propylpyridin-4(1H)-ylidene)-1H-indene-1,3(2H)-dione with 4-hydroxybenzaldehyde in a sealed tube and its structure was confirmed by NMR spectra and X-ray crystal analysis.The title compound, C29H29NO3, is a 1,4-dihydropyridine ring with four distinct substituents (Fig. 1). In the π-π interactions between the 5- and 6-membered rings. The shortest centroid-centroid distance is 3.796 (2) Å and the dihedral angle between the ring planes is 1.7 (1)°. Moreover, there are inter- and intramolecular O—H···O and C—H···O hydrogen bonds with d(O···O) = 2.626 (2) Å and d(C···O) = 2.927 (3) Å–3.515 (3) Å (Fig. 2, Table 1).
the nearly planar 9-membered ring [maximum deviation of 0.027 (2) Å for C17] is located approximately parallel to its carrier pyridine ring [maximum deviation of 0.021 (2) Å for C3] with the dihedral angle of 1.8 (1)° between the planes. However, because of the the benzne ring [maximum deviation of 0.006 (2) Å for C14] is not parallel to the pyridine ring. The dihedral angle between the pyridine and the benzene rings is 37.29 (8)°. The molecules display numerous intermolecularFor the synthesis of the starting material, see: Yao et al. (2006a). For the synthesis of the title compound, see: Peng et al. (2006). For background to luminescent materials, see: Andreu et al. (2009); Kim et al. (2004); Yao et al. (2006a,b).
Data collection: SMART (Bruker, 2000); cell
SAINT (Bruker, 2000); data reduction: SAINT (Bruker, 2000); program(s) used to solve structure: SHELXS97 (Sheldrick, 2008); program(s) used to refine structure: SHELXL97 (Sheldrick, 2008); molecular graphics: ORTEP-3 (Farrugia, 1997) and PLATON (Spek, 2009); software used to prepare material for publication: SHELXL97 (Sheldrick, 2008).C29H29NO3 | F(000) = 936 |
Mr = 439.53 | Dx = 1.264 Mg m−3 |
Monoclinic, P21/c | Mo Kα radiation, λ = 0.71073 Å |
Hall symbol: -P 2ybc | Cell parameters from 1849 reflections |
a = 9.1330 (8) Å | θ = 2.6–22.5° |
b = 12.4857 (12) Å | µ = 0.08 mm−1 |
c = 20.440 (2) Å | T = 200 K |
β = 97.775 (3)° | Block, orange |
V = 2309.4 (4) Å3 | 0.25 × 0.15 × 0.10 mm |
Z = 4 |
Bruker SMART 1000 CCD diffractometer | 5724 independent reflections |
Radiation source: fine-focus sealed tube | 2458 reflections with I > 2σ(I) |
Graphite monochromator | Rint = 0.097 |
φ and ω scans | θmax = 28.3°, θmin = 1.9° |
Absorption correction: multi-scan (SADABS; Bruker, 2000) | h = −12→9 |
Tmin = 0.809, Tmax = 1.000 | k = −14→16 |
16959 measured reflections | l = −27→27 |
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)] = 0.063 | Hydrogen site location: inferred from neighbouring sites |
wR(F2) = 0.144 | H-atom parameters constrained |
S = 0.95 | w = 1/[σ2(Fo2) + (0.0389P)2] where P = (Fo2 + 2Fc2)/3 |
5724 reflections | (Δ/σ)max < 0.001 |
303 parameters | Δρmax = 0.27 e Å−3 |
0 restraints | Δρmin = −0.24 e Å−3 |
C29H29NO3 | V = 2309.4 (4) Å3 |
Mr = 439.53 | Z = 4 |
Monoclinic, P21/c | Mo Kα radiation |
a = 9.1330 (8) Å | µ = 0.08 mm−1 |
b = 12.4857 (12) Å | T = 200 K |
c = 20.440 (2) Å | 0.25 × 0.15 × 0.10 mm |
β = 97.775 (3)° |
Bruker SMART 1000 CCD diffractometer | 5724 independent reflections |
Absorption correction: multi-scan (SADABS; Bruker, 2000) | 2458 reflections with I > 2σ(I) |
Tmin = 0.809, Tmax = 1.000 | Rint = 0.097 |
16959 measured reflections |
R[F2 > 2σ(F2)] = 0.063 | 0 restraints |
wR(F2) = 0.144 | H-atom parameters constrained |
S = 0.95 | Δρmax = 0.27 e Å−3 |
5724 reflections | Δρmin = −0.24 e Å−3 |
303 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 | ||
O1 | −0.0695 (2) | 0.59992 (15) | −0.28744 (9) | 0.0476 (5) | |
H1 | −0.1176 | 0.5587 | −0.3149 | 0.071* | |
O2 | 0.5781 (2) | 0.11427 (16) | −0.09052 (9) | 0.0486 (6) | |
O3 | 0.78458 (19) | 0.03498 (15) | 0.12927 (8) | 0.0457 (5) | |
N1 | 0.4052 (2) | 0.36029 (17) | 0.09620 (10) | 0.0321 (5) | |
C1 | 0.3979 (3) | 0.3394 (2) | 0.02930 (12) | 0.0341 (7) | |
C2 | 0.4809 (3) | 0.2590 (2) | 0.00776 (12) | 0.0358 (7) | |
H2 | 0.4768 | 0.2474 | −0.0384 | 0.043* | |
C3 | 0.5722 (3) | 0.1927 (2) | 0.05153 (12) | 0.0321 (6) | |
C4 | 0.5788 (3) | 0.2198 (2) | 0.11904 (12) | 0.0337 (7) | |
H4 | 0.6430 | 0.1795 | 0.1502 | 0.040* | |
C5 | 0.4981 (3) | 0.3010 (2) | 0.14242 (12) | 0.0301 (6) | |
C6 | 0.3013 (3) | 0.4443 (2) | 0.11389 (12) | 0.0372 (7) | |
H6A | 0.2879 | 0.4352 | 0.1608 | 0.045* | |
H6B | 0.2039 | 0.4332 | 0.0870 | 0.045* | |
C7 | 0.3518 (3) | 0.5595 (2) | 0.10358 (13) | 0.0395 (7) | |
H7A | 0.4173 | 0.5838 | 0.1434 | 0.047* | |
H7B | 0.4087 | 0.5618 | 0.0657 | 0.047* | |
C8 | 0.2198 (3) | 0.6337 (2) | 0.09059 (15) | 0.0544 (9) | |
H8A | 0.1540 | 0.6087 | 0.0517 | 0.082* | |
H8B | 0.2537 | 0.7064 | 0.0826 | 0.082* | |
H8C | 0.1662 | 0.6339 | 0.1290 | 0.082* | |
C9 | 0.3034 (3) | 0.4045 (2) | −0.01866 (12) | 0.0375 (7) | |
H9 | 0.2809 | 0.4756 | −0.0068 | 0.045* | |
C10 | 0.2472 (3) | 0.3688 (2) | −0.07848 (13) | 0.0372 (7) | |
H10 | 0.2638 | 0.2954 | −0.0874 | 0.045* | |
C11 | 0.1628 (3) | 0.4304 (2) | −0.13161 (12) | 0.0317 (6) | |
C12 | 0.1454 (3) | 0.5414 (2) | −0.12959 (13) | 0.0390 (7) | |
H12 | 0.1889 | 0.5799 | −0.0918 | 0.047* | |
C13 | 0.0667 (3) | 0.5963 (2) | −0.18120 (12) | 0.0364 (7) | |
H13 | 0.0554 | 0.6717 | −0.1785 | 0.044* | |
C14 | 0.0037 (3) | 0.5414 (2) | −0.23731 (12) | 0.0336 (7) | |
C15 | 0.0185 (3) | 0.4315 (2) | −0.24032 (13) | 0.0382 (7) | |
H15 | −0.0254 | 0.3933 | −0.2782 | 0.046* | |
C16 | 0.0974 (3) | 0.3770 (2) | −0.18809 (12) | 0.0363 (7) | |
H16 | 0.1073 | 0.3015 | −0.1907 | 0.044* | |
C17 | 0.6529 (3) | 0.1067 (2) | 0.02824 (12) | 0.0323 (6) | |
C18 | 0.6471 (3) | 0.0741 (2) | −0.04036 (13) | 0.0351 (7) | |
C19 | 0.7476 (3) | −0.0205 (2) | −0.04171 (13) | 0.0350 (7) | |
C20 | 0.7841 (3) | −0.0786 (2) | −0.09424 (13) | 0.0430 (7) | |
H20 | 0.7412 | −0.0628 | −0.1381 | 0.052* | |
C21 | 0.8859 (3) | −0.1616 (2) | −0.08116 (14) | 0.0467 (8) | |
H21 | 0.9122 | −0.2034 | −0.1166 | 0.056* | |
C22 | 0.9486 (3) | −0.1837 (2) | −0.01795 (15) | 0.0463 (8) | |
H22 | 1.0183 | −0.2403 | −0.0103 | 0.056* | |
C23 | 0.9122 (3) | −0.1248 (2) | 0.03534 (14) | 0.0414 (7) | |
H23 | 0.9564 | −0.1403 | 0.0791 | 0.050* | |
C24 | 0.8103 (3) | −0.0435 (2) | 0.02303 (13) | 0.0344 (7) | |
C25 | 0.7502 (3) | 0.0347 (2) | 0.06786 (13) | 0.0354 (7) | |
C26 | 0.5070 (3) | 0.3201 (2) | 0.21726 (12) | 0.0340 (7) | |
C27 | 0.6370 (3) | 0.2581 (2) | 0.25452 (12) | 0.0469 (8) | |
H27A | 0.6237 | 0.1814 | 0.2456 | 0.070* | |
H27B | 0.6413 | 0.2712 | 0.3020 | 0.070* | |
H27C | 0.7293 | 0.2822 | 0.2398 | 0.070* | |
C28 | 0.3691 (3) | 0.2742 (2) | 0.24283 (13) | 0.0512 (8) | |
H28A | 0.2806 | 0.3096 | 0.2203 | 0.077* | |
H28B | 0.3759 | 0.2867 | 0.2905 | 0.077* | |
H28C | 0.3629 | 0.1970 | 0.2341 | 0.077* | |
C29 | 0.5324 (3) | 0.4375 (2) | 0.23891 (13) | 0.0455 (8) | |
H29A | 0.6095 | 0.4689 | 0.2159 | 0.068* | |
H29B | 0.5635 | 0.4404 | 0.2867 | 0.068* | |
H29C | 0.4404 | 0.4779 | 0.2279 | 0.068* |
U11 | U22 | U33 | U12 | U13 | U23 | |
O1 | 0.0611 (14) | 0.0377 (13) | 0.0384 (12) | 0.0059 (10) | −0.0140 (10) | 0.0000 (10) |
O2 | 0.0662 (14) | 0.0522 (14) | 0.0251 (11) | 0.0169 (11) | −0.0023 (9) | 0.0015 (10) |
O3 | 0.0559 (12) | 0.0513 (14) | 0.0271 (11) | 0.0104 (10) | −0.0050 (9) | −0.0016 (10) |
N1 | 0.0349 (13) | 0.0362 (14) | 0.0256 (12) | 0.0032 (11) | 0.0055 (10) | −0.0029 (11) |
C1 | 0.0396 (17) | 0.0377 (18) | 0.0243 (15) | 0.0012 (14) | 0.0024 (12) | 0.0001 (13) |
C2 | 0.0439 (17) | 0.0381 (18) | 0.0251 (15) | 0.0048 (14) | 0.0038 (13) | −0.0022 (13) |
C3 | 0.0356 (16) | 0.0319 (17) | 0.0284 (15) | −0.0024 (13) | 0.0030 (12) | 0.0017 (13) |
C4 | 0.0385 (16) | 0.0341 (17) | 0.0270 (15) | 0.0018 (14) | −0.0009 (12) | 0.0026 (13) |
C5 | 0.0327 (15) | 0.0312 (16) | 0.0256 (15) | −0.0038 (13) | 0.0011 (12) | 0.0031 (12) |
C6 | 0.0384 (16) | 0.0415 (19) | 0.0326 (16) | 0.0056 (14) | 0.0077 (12) | −0.0002 (14) |
C7 | 0.0438 (17) | 0.0395 (18) | 0.0355 (17) | 0.0047 (15) | 0.0067 (13) | −0.0020 (14) |
C8 | 0.055 (2) | 0.046 (2) | 0.062 (2) | 0.0085 (17) | 0.0029 (16) | 0.0025 (17) |
C9 | 0.0462 (17) | 0.0383 (18) | 0.0274 (16) | 0.0111 (14) | 0.0030 (13) | 0.0014 (14) |
C10 | 0.0419 (17) | 0.0333 (17) | 0.0363 (17) | 0.0051 (14) | 0.0044 (13) | 0.0029 (14) |
C11 | 0.0343 (16) | 0.0318 (17) | 0.0287 (15) | 0.0019 (13) | 0.0037 (12) | −0.0002 (13) |
C12 | 0.0439 (17) | 0.0410 (19) | 0.0305 (16) | −0.0022 (15) | −0.0005 (13) | −0.0043 (14) |
C13 | 0.0447 (17) | 0.0290 (16) | 0.0340 (17) | 0.0035 (14) | −0.0004 (13) | −0.0007 (13) |
C14 | 0.0344 (16) | 0.0354 (18) | 0.0297 (16) | 0.0026 (14) | 0.0002 (12) | 0.0034 (14) |
C15 | 0.0439 (18) | 0.0381 (18) | 0.0306 (16) | −0.0016 (14) | −0.0028 (13) | −0.0035 (14) |
C16 | 0.0404 (17) | 0.0321 (17) | 0.0360 (17) | 0.0050 (14) | 0.0037 (13) | −0.0011 (13) |
C17 | 0.0363 (16) | 0.0350 (17) | 0.0242 (15) | 0.0025 (13) | −0.0006 (12) | 0.0011 (12) |
C18 | 0.0390 (17) | 0.0353 (17) | 0.0305 (16) | 0.0034 (14) | 0.0034 (13) | −0.0003 (13) |
C19 | 0.0369 (16) | 0.0330 (17) | 0.0345 (16) | 0.0003 (14) | 0.0034 (12) | −0.0038 (13) |
C20 | 0.0517 (19) | 0.045 (2) | 0.0311 (16) | 0.0075 (16) | 0.0018 (13) | −0.0045 (14) |
C21 | 0.051 (2) | 0.046 (2) | 0.044 (2) | 0.0085 (16) | 0.0124 (15) | −0.0026 (16) |
C22 | 0.0456 (19) | 0.0389 (19) | 0.054 (2) | 0.0112 (15) | 0.0057 (15) | −0.0035 (16) |
C23 | 0.0417 (18) | 0.0390 (19) | 0.0414 (18) | 0.0041 (15) | −0.0020 (14) | −0.0007 (15) |
C24 | 0.0377 (16) | 0.0333 (17) | 0.0308 (16) | 0.0029 (14) | −0.0004 (12) | 0.0006 (13) |
C25 | 0.0376 (17) | 0.0404 (18) | 0.0269 (16) | −0.0019 (14) | 0.0002 (12) | −0.0013 (14) |
C26 | 0.0436 (17) | 0.0360 (17) | 0.0225 (15) | −0.0013 (14) | 0.0046 (12) | −0.0016 (13) |
C27 | 0.061 (2) | 0.054 (2) | 0.0254 (16) | 0.0025 (16) | 0.0018 (14) | 0.0006 (14) |
C28 | 0.060 (2) | 0.057 (2) | 0.0398 (18) | −0.0049 (17) | 0.0157 (15) | 0.0014 (16) |
C29 | 0.062 (2) | 0.042 (2) | 0.0306 (17) | 0.0027 (16) | 0.0005 (14) | −0.0022 (14) |
O1—C14 | 1.358 (3) | C13—C14 | 1.392 (3) |
O1—H1 | 0.8400 | C13—H13 | 0.9500 |
O2—C18 | 1.235 (3) | C14—C15 | 1.381 (4) |
O3—C25 | 1.252 (3) | C15—C16 | 1.383 (3) |
N1—C1 | 1.385 (3) | C15—H15 | 0.9500 |
N1—C5 | 1.394 (3) | C16—H16 | 0.9500 |
N1—C6 | 1.492 (3) | C17—C25 | 1.434 (3) |
C1—C2 | 1.367 (3) | C17—C18 | 1.454 (3) |
C1—C9 | 1.461 (3) | C18—C19 | 1.499 (3) |
C2—C3 | 1.407 (3) | C19—C20 | 1.374 (3) |
C2—H2 | 0.9500 | C19—C24 | 1.399 (3) |
C3—C4 | 1.414 (3) | C20—C21 | 1.393 (4) |
C3—C17 | 1.421 (3) | C20—H20 | 0.9500 |
C4—C5 | 1.376 (3) | C21—C22 | 1.369 (4) |
C4—H4 | 0.9500 | C21—H21 | 0.9500 |
C5—C26 | 1.539 (3) | C22—C23 | 1.391 (4) |
C6—C7 | 1.533 (4) | C22—H22 | 0.9500 |
C6—H6A | 0.9900 | C23—C24 | 1.376 (3) |
C6—H6B | 0.9900 | C23—H23 | 0.9500 |
C7—C8 | 1.515 (3) | C24—C25 | 1.494 (4) |
C7—H7A | 0.9900 | C26—C27 | 1.531 (3) |
C7—H7B | 0.9900 | C26—C28 | 1.539 (3) |
C8—H8A | 0.9800 | C26—C29 | 1.540 (4) |
C8—H8B | 0.9800 | C27—H27A | 0.9800 |
C8—H8C | 0.9800 | C27—H27B | 0.9800 |
C9—C10 | 1.337 (3) | C27—H27C | 0.9800 |
C9—H9 | 0.9500 | C28—H28A | 0.9800 |
C10—C11 | 1.462 (3) | C28—H28B | 0.9800 |
C10—H10 | 0.9500 | C28—H28C | 0.9800 |
C11—C16 | 1.395 (3) | C29—H29A | 0.9800 |
C11—C12 | 1.396 (4) | C29—H29B | 0.9800 |
C12—C13 | 1.376 (3) | C29—H29C | 0.9800 |
C12—H12 | 0.9500 | ||
C14—O1—H1 | 109.5 | C14—C15—H15 | 120.1 |
C1—N1—C5 | 120.9 (2) | C16—C15—H15 | 120.1 |
C1—N1—C6 | 115.1 (2) | C15—C16—C11 | 121.6 (3) |
C5—N1—C6 | 123.9 (2) | C15—C16—H16 | 119.2 |
C2—C1—N1 | 120.1 (2) | C11—C16—H16 | 119.2 |
C2—C1—C9 | 119.7 (2) | C3—C17—C25 | 126.5 (2) |
N1—C1—C9 | 120.2 (2) | C3—C17—C18 | 125.6 (2) |
C1—C2—C3 | 122.3 (2) | C25—C17—C18 | 108.0 (2) |
C1—C2—H2 | 118.8 | O2—C18—C17 | 129.4 (3) |
C3—C2—H2 | 118.8 | O2—C18—C19 | 123.4 (2) |
C2—C3—C4 | 115.0 (2) | C17—C18—C19 | 107.2 (2) |
C2—C3—C17 | 121.4 (2) | C20—C19—C24 | 121.3 (3) |
C4—C3—C17 | 123.5 (2) | C20—C19—C18 | 130.1 (2) |
C5—C4—C3 | 124.1 (2) | C24—C19—C18 | 108.5 (2) |
C5—C4—H4 | 117.9 | C19—C20—C21 | 117.9 (3) |
C3—C4—H4 | 117.9 | C19—C20—H20 | 121.0 |
C4—C5—N1 | 117.5 (2) | C21—C20—H20 | 121.0 |
C4—C5—C26 | 120.0 (2) | C22—C21—C20 | 120.9 (3) |
N1—C5—C26 | 122.5 (2) | C22—C21—H21 | 119.5 |
N1—C6—C7 | 114.4 (2) | C20—C21—H21 | 119.5 |
N1—C6—H6A | 108.7 | C21—C22—C23 | 121.2 (3) |
C7—C6—H6A | 108.7 | C21—C22—H22 | 119.4 |
N1—C6—H6B | 108.7 | C23—C22—H22 | 119.4 |
C7—C6—H6B | 108.7 | C24—C23—C22 | 118.3 (3) |
H6A—C6—H6B | 107.6 | C24—C23—H23 | 120.9 |
C8—C7—C6 | 110.5 (2) | C22—C23—H23 | 120.9 |
C8—C7—H7A | 109.5 | C23—C24—C19 | 120.3 (3) |
C6—C7—H7A | 109.5 | C23—C24—C25 | 131.7 (2) |
C8—C7—H7B | 109.5 | C19—C24—C25 | 108.0 (2) |
C6—C7—H7B | 109.5 | O3—C25—C17 | 128.0 (3) |
H7A—C7—H7B | 108.1 | O3—C25—C24 | 123.6 (2) |
C7—C8—H8A | 109.5 | C17—C25—C24 | 108.3 (2) |
C7—C8—H8B | 109.5 | C27—C26—C28 | 105.0 (2) |
H8A—C8—H8B | 109.5 | C27—C26—C5 | 110.5 (2) |
C7—C8—H8C | 109.5 | C28—C26—C5 | 110.1 (2) |
H8A—C8—H8C | 109.5 | C27—C26—C29 | 105.2 (2) |
H8B—C8—H8C | 109.5 | C28—C26—C29 | 110.8 (2) |
C10—C9—C1 | 123.2 (3) | C5—C26—C29 | 114.7 (2) |
C10—C9—H9 | 118.4 | C26—C27—H27A | 109.5 |
C1—C9—H9 | 118.4 | C26—C27—H27B | 109.5 |
C9—C10—C11 | 127.0 (3) | H27A—C27—H27B | 109.5 |
C9—C10—H10 | 116.5 | C26—C27—H27C | 109.5 |
C11—C10—H10 | 116.5 | H27A—C27—H27C | 109.5 |
C16—C11—C12 | 117.4 (2) | H27B—C27—H27C | 109.5 |
C16—C11—C10 | 119.1 (3) | C26—C28—H28A | 109.5 |
C12—C11—C10 | 123.4 (2) | C26—C28—H28B | 109.5 |
C13—C12—C11 | 121.4 (2) | H28A—C28—H28B | 109.5 |
C13—C12—H12 | 119.3 | C26—C28—H28C | 109.5 |
C11—C12—H12 | 119.3 | H28A—C28—H28C | 109.5 |
C12—C13—C14 | 120.1 (3) | H28B—C28—H28C | 109.5 |
C12—C13—H13 | 120.0 | C26—C29—H29A | 109.5 |
C14—C13—H13 | 120.0 | C26—C29—H29B | 109.5 |
O1—C14—C15 | 122.8 (2) | H29A—C29—H29B | 109.5 |
O1—C14—C13 | 117.6 (2) | C26—C29—H29C | 109.5 |
C15—C14—C13 | 119.6 (2) | H29A—C29—H29C | 109.5 |
C14—C15—C16 | 119.9 (3) | H29B—C29—H29C | 109.5 |
C5—N1—C1—C2 | 0.8 (4) | C2—C3—C17—C18 | −2.8 (4) |
C6—N1—C1—C2 | −175.6 (2) | C4—C3—C17—C18 | 178.4 (2) |
C5—N1—C1—C9 | −178.1 (2) | C3—C17—C18—O2 | 2.5 (5) |
C6—N1—C1—C9 | 5.5 (3) | C25—C17—C18—O2 | −179.3 (3) |
N1—C1—C2—C3 | 2.0 (4) | C3—C17—C18—C19 | −179.1 (2) |
C9—C1—C2—C3 | −179.1 (2) | C25—C17—C18—C19 | −1.0 (3) |
C1—C2—C3—C4 | −3.8 (4) | O2—C18—C19—C20 | 0.6 (5) |
C1—C2—C3—C17 | 177.3 (2) | C17—C18—C19—C20 | −177.9 (3) |
C2—C3—C4—C5 | 3.1 (4) | O2—C18—C19—C24 | 178.6 (3) |
C17—C3—C4—C5 | −178.1 (3) | C17—C18—C19—C24 | 0.1 (3) |
C3—C4—C5—N1 | −0.5 (4) | C24—C19—C20—C21 | 0.0 (4) |
C3—C4—C5—C26 | 176.7 (2) | C18—C19—C20—C21 | 177.7 (3) |
C1—N1—C5—C4 | −1.5 (4) | C19—C20—C21—C22 | −0.6 (4) |
C6—N1—C5—C4 | 174.5 (2) | C20—C21—C22—C23 | 0.4 (4) |
C1—N1—C5—C26 | −178.7 (2) | C21—C22—C23—C24 | 0.3 (4) |
C6—N1—C5—C26 | −2.6 (4) | C22—C23—C24—C19 | −0.9 (4) |
C1—N1—C6—C7 | −78.9 (3) | C22—C23—C24—C25 | −178.6 (3) |
C5—N1—C6—C7 | 104.9 (3) | C20—C19—C24—C23 | 0.8 (4) |
N1—C6—C7—C8 | 153.0 (2) | C18—C19—C24—C23 | −177.4 (2) |
C2—C1—C9—C10 | 26.8 (4) | C20—C19—C24—C25 | 179.0 (2) |
N1—C1—C9—C10 | −154.3 (2) | C18—C19—C24—C25 | 0.8 (3) |
C1—C9—C10—C11 | −174.3 (2) | C3—C17—C25—O3 | −1.5 (5) |
C9—C10—C11—C16 | −172.4 (3) | C18—C17—C25—O3 | −179.7 (3) |
C9—C10—C11—C12 | 8.6 (4) | C3—C17—C25—C24 | 179.6 (2) |
C16—C11—C12—C13 | 0.1 (4) | C18—C17—C25—C24 | 1.5 (3) |
C10—C11—C12—C13 | 179.1 (2) | C23—C24—C25—O3 | −2.4 (5) |
C11—C12—C13—C14 | −0.7 (4) | C19—C24—C25—O3 | 179.7 (2) |
C12—C13—C14—O1 | −178.3 (2) | C23—C24—C25—C17 | 176.5 (3) |
C12—C13—C14—C15 | 1.1 (4) | C19—C24—C25—C17 | −1.4 (3) |
O1—C14—C15—C16 | 178.5 (2) | C4—C5—C26—C27 | 13.2 (3) |
C13—C14—C15—C16 | −0.9 (4) | N1—C5—C26—C27 | −169.7 (2) |
C14—C15—C16—C11 | 0.3 (4) | C4—C5—C26—C28 | −102.3 (3) |
C12—C11—C16—C15 | 0.1 (4) | N1—C5—C26—C28 | 74.8 (3) |
C10—C11—C16—C15 | −178.9 (2) | C4—C5—C26—C29 | 131.8 (3) |
C2—C3—C17—C25 | 179.3 (2) | N1—C5—C26—C29 | −51.1 (3) |
C4—C3—C17—C25 | 0.6 (4) |
D—H···A | D—H | H···A | D···A | D—H···A |
O1—H1···O3i | 0.84 | 1.79 | 2.626 (2) | 177 |
C2—H2···O2 | 0.95 | 2.24 | 2.927 (3) | 128 |
C4—H4···O3 | 0.95 | 2.29 | 2.966 (3) | 127 |
C15—H15···O3i | 0.95 | 2.55 | 3.210 (3) | 127 |
C16—H16···O1ii | 0.95 | 2.57 | 3.500 (3) | 166 |
C29—H29B···O2iii | 0.98 | 2.59 | 3.515 (3) | 158 |
Symmetry codes: (i) x−1, −y+1/2, z−1/2; (ii) −x, y−1/2, −z−1/2; (iii) x, −y+1/2, z+1/2. |
Experimental details
Crystal data | |
Chemical formula | C29H29NO3 |
Mr | 439.53 |
Crystal system, space group | Monoclinic, P21/c |
Temperature (K) | 200 |
a, b, c (Å) | 9.1330 (8), 12.4857 (12), 20.440 (2) |
β (°) | 97.775 (3) |
V (Å3) | 2309.4 (4) |
Z | 4 |
Radiation type | Mo Kα |
µ (mm−1) | 0.08 |
Crystal size (mm) | 0.25 × 0.15 × 0.10 |
Data collection | |
Diffractometer | Bruker SMART 1000 CCD |
Absorption correction | Multi-scan (SADABS; Bruker, 2000) |
Tmin, Tmax | 0.809, 1.000 |
No. of measured, independent and observed [I > 2σ(I)] reflections | 16959, 5724, 2458 |
Rint | 0.097 |
(sin θ/λ)max (Å−1) | 0.667 |
Refinement | |
R[F2 > 2σ(F2)], wR(F2), S | 0.063, 0.144, 0.95 |
No. of reflections | 5724 |
No. of parameters | 303 |
H-atom treatment | H-atom parameters constrained |
Δρmax, Δρmin (e Å−3) | 0.27, −0.24 |
Computer programs: SMART (Bruker, 2000), SAINT (Bruker, 2000), SHELXS97 (Sheldrick, 2008), SHELXL97 (Sheldrick, 2008), ORTEP-3 (Farrugia, 1997) and PLATON (Spek, 2009).
D—H···A | D—H | H···A | D···A | D—H···A |
O1—H1···O3i | 0.84 | 1.79 | 2.626 (2) | 176.9 |
C2—H2···O2 | 0.95 | 2.24 | 2.927 (3) | 128.4 |
C4—H4···O3 | 0.95 | 2.29 | 2.966 (3) | 127.2 |
C15—H15···O3i | 0.95 | 2.55 | 3.210 (3) | 126.8 |
C16—H16···O1ii | 0.95 | 2.57 | 3.500 (3) | 166.0 |
C29—H29B···O2iii | 0.98 | 2.59 | 3.515 (3) | 158.0 |
Symmetry codes: (i) x−1, −y+1/2, z−1/2; (ii) −x, y−1/2, −z−1/2; (iii) x, −y+1/2, z+1/2. |
Acknowledgements
This study was supported financially by Chonnam National University, 2008.
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.
Indene-1,3(2H)-dione moiety is used as a strong electron acceptor for luminescent materials such as organic light-emitting diodes (OLED) (Yao et al., 2006a,b; Andreu et al., 2009; Kim et al., 2004). For the purpose of finding a pH-sensing luminescent dye, we designed the title compound which includes indene-1,3(2H)-dione moiety conjugated with 1,4-dihydropyridine ring possessing a 4-hydroxystyryl group. The title compound was synthesized by the Knoevenagel condensation of 2-(2-tert-butyl-6-methyl-1-propylpyridin-4(1H)-ylidene)-1H-indene-1,3(2H)-dione with 4-hydroxybenzaldehyde in a sealed tube and its structure was confirmed by NMR spectra and X-ray crystal analysis.
The title compound, C29H29NO3, is a 1,4-dihydropyridine ring with four distinct substituents (Fig. 1). In the crystal structure, the nearly planar 9-membered ring [maximum deviation of 0.027 (2) Å for C17] is located approximately parallel to its carrier pyridine ring [maximum deviation of 0.021 (2) Å for C3] with the dihedral angle of 1.8 (1)° between the planes. However, because of the steric hindrance, the benzne ring [maximum deviation of 0.006 (2) Å for C14] is not parallel to the pyridine ring. The dihedral angle between the pyridine and the benzene rings is 37.29 (8)°. The molecules display numerous intermolecular π-π interactions between the 5- and 6-membered rings. The shortest centroid-centroid distance is 3.796 (2) Å and the dihedral angle between the ring planes is 1.7 (1)°. Moreover, there are inter- and intramolecular O—H···O and C—H···O hydrogen bonds with d(O···O) = 2.626 (2) Å and d(C···O) = 2.927 (3) Å–3.515 (3) Å (Fig. 2, Table 1).