organic compounds
1-[2-Oxo-1′-phenyl-2′,3′,5′,6′,7′,7a'-hexahydroindoline-3-spiro-3′-1′H-pyrrolizin-2′-yl]-3-phenylprop-2-en-1-one
aDepartment of Physics, Easwari Engineering College, Ramapuram, Chennai 600 089, India, bDepartment of Analytical Chemistry, University of Madras, Guindy Campus, Chennai 600 025, India, and cDepartment of Physics, SRM University, Ramapuram Campus, Chennai 600 089, India
*Correspondence e-mail: sudharose18@gmail.com
In the title compound, C29H26N2O2, one of the pyrrolidine rings in the pyrrolizine system is disordered, with site occupancies of ca 0.55 and 0.45. Both components of the disordered pyrrolidine ring adopt envelope conformations, whereas the other pyrrolidine ring adopts a twist conformation. The molecules are linked into centrosymmetric dimers by N—H⋯O hydrogen bonds and the dimers are connected via C—H⋯π interactions.
Related literature
For related literature, see: Araki et al. (2002); Caine (1993); Gore et al. (1991); Harris & Uhle (1960); Ho et al. (1986); James et al. (1991); Kobayashi et al. (1991); Ramesh et al. (2007); Stevenson et al. (2000); Tietze et al. (1988). For ring puckering parameters, see: Cremer & Pople (1975).
Experimental
Crystal data
|
Refinement
|
Data collection: APEX2 (Bruker, 2004); cell APEX2 and SAINT (Bruker, 2004); data reduction: SAINT and XPREP (Bruker, 2004); program(s) used to solve structure: SHELXS97 (Sheldrick, 2008); program(s) used to refine structure: SHELXL97 (Sheldrick, 2008); molecular graphics: ORTEP-3 (Farrugia, 1997); software used to prepare material for publication: PLATON (Spek, 2003).
Supporting information
10.1107/S1600536808024781/ci2643sup1.cif
contains datablocks I, global. DOI:Structure factors: contains datablock I. DOI: 10.1107/S1600536808024781/ci2643Isup2.hkl
A solution of (1E,6E)-4-benzylidene-1,7-diphenylhepta-1,6-diene-3,5-dione (1 mmol), isatin (1 mmol) and L-proline (1 mmol) in aqueous methanol (20 ml) was refluxed until the disappearance of starting materials as evidenced by TLC. The solvent was removed under reduced pressure and the crude product was purified by
using petroleum ether-ethyl acetate (5:1) as The final product was recrystallized from ethanol-chloroform (2:8 v/v) solution.Atom C3 of one of the pyrrolidine rings is disordered over two positions (C3 and C3A) with site occupancies of 0.546 (12) and 0.454 (12). All H atoms were placed in idealized positions and allowed to ride on their parent atoms, with N-H = 0.86 Å, C-H = 0.93-0.98 Å and Uiso(H) = 1.2Ueq(C).
Data collection: APEX2 (Bruker, 2004); cell
APEX2 (Bruker, 2004) and SAINT (Bruker, 2004); data reduction: SAINT (Bruker, 2004) and XPREP (Bruker, 2004); program(s) used to solve structure: SHELXS97 (Sheldrick, 2008); program(s) used to refine structure: SHELXL97 (Sheldrick, 2008); molecular graphics: ORTEP-3 (Farrugia, 1997); software used to prepare material for publication: PLATON (Spek, 2003).C29H26N2O2 | Z = 2 |
Mr = 434.52 | F(000) = 460 |
Triclinic, P1 | Dx = 1.261 Mg m−3 |
Hall symbol: -P 1 | Mo Kα radiation, λ = 0.71073 Å |
a = 8.4210 (2) Å | Cell parameters from 9449 reflections |
b = 11.8895 (3) Å | θ = 2.3–30.1° |
c = 12.5121 (3) Å | µ = 0.08 mm−1 |
α = 95.662 (1)° | T = 293 K |
β = 105.071 (1)° | Prism, yellow |
γ = 105.815 (1)° | 0.30 × 0.20 × 0.16 mm |
V = 1144.31 (5) Å3 |
Bruker Kappa APEXII diffractometer | 7422 independent reflections |
Radiation source: fine-focus sealed tube | 4682 reflections with I > 2σ(I) |
Graphite monochromator | Rint = 0.024 |
ω scans | θmax = 31.3°, θmin = 1.7° |
Absorption correction: multi-scan (Blessing, 1995) | h = −12→11 |
Tmin = 0.977, Tmax = 0.987 | k = −17→17 |
30483 measured reflections | l = −18→18 |
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)] = 0.058 | Hydrogen site location: inferred from neighbouring sites |
wR(F2) = 0.200 | H-atom parameters constrained |
S = 1.04 | w = 1/[σ2(Fo2) + (0.1054P)2 + 0.1777P] where P = (Fo2 + 2Fc2)/3 |
7422 reflections | (Δ/σ)max = 0.001 |
308 parameters | Δρmax = 0.43 e Å−3 |
0 restraints | Δρmin = −0.23 e Å−3 |
C29H26N2O2 | γ = 105.815 (1)° |
Mr = 434.52 | V = 1144.31 (5) Å3 |
Triclinic, P1 | Z = 2 |
a = 8.4210 (2) Å | Mo Kα radiation |
b = 11.8895 (3) Å | µ = 0.08 mm−1 |
c = 12.5121 (3) Å | T = 293 K |
α = 95.662 (1)° | 0.30 × 0.20 × 0.16 mm |
β = 105.071 (1)° |
Bruker Kappa APEXII diffractometer | 7422 independent reflections |
Absorption correction: multi-scan (Blessing, 1995) | 4682 reflections with I > 2σ(I) |
Tmin = 0.977, Tmax = 0.987 | Rint = 0.024 |
30483 measured reflections |
R[F2 > 2σ(F2)] = 0.058 | 0 restraints |
wR(F2) = 0.200 | H-atom parameters constrained |
S = 1.04 | Δρmax = 0.43 e Å−3 |
7422 reflections | Δρmin = −0.23 e Å−3 |
308 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 | Occ. (<1) | |
O1 | 1.13350 (16) | 0.65165 (11) | 0.20138 (10) | 0.0592 (3) | |
O2 | 0.94660 (16) | 0.99242 (9) | 0.34629 (9) | 0.0487 (3) | |
N1 | 0.69132 (15) | 0.79708 (12) | 0.16496 (10) | 0.0446 (3) | |
N2 | 0.89750 (18) | 0.84222 (11) | 0.44618 (10) | 0.0450 (3) | |
H2 | 0.9240 | 0.8844 | 0.5119 | 0.054* | |
C1 | 0.71391 (18) | 0.77545 (15) | 0.05236 (11) | 0.0428 (3) | |
H1 | 0.7437 | 0.8511 | 0.0259 | 0.051* | |
C2 | 0.5380 (2) | 0.6955 (2) | −0.02380 (15) | 0.0623 (5) | |
H2A | 0.4778 | 0.7412 | −0.0695 | 0.075* | 0.546 (12) |
H2B | 0.5516 | 0.6330 | −0.0733 | 0.075* | 0.546 (12) |
H2C | 0.5382 | 0.6148 | −0.0391 | 0.075* | 0.454 (12) |
H2D | 0.5062 | 0.7225 | −0.0937 | 0.075* | 0.454 (12) |
C3 | 0.4432 (6) | 0.6455 (5) | 0.0502 (4) | 0.0542 (13) | 0.546 (12) |
H3A | 0.4600 | 0.5698 | 0.0630 | 0.065* | 0.546 (12) |
H3B | 0.3205 | 0.6329 | 0.0175 | 0.065* | 0.546 (12) |
C3A | 0.4171 (6) | 0.7056 (11) | 0.0445 (4) | 0.067 (2) | 0.454 (12) |
H3C | 0.3658 | 0.7674 | 0.0245 | 0.080* | 0.454 (12) |
H3D | 0.3248 | 0.6310 | 0.0294 | 0.080* | 0.454 (12) |
C4 | 0.5126 (2) | 0.7336 (2) | 0.15888 (16) | 0.0635 (5) | |
H4A | 0.4454 | 0.7882 | 0.1586 | 0.076* | 0.546 (12) |
H4B | 0.5095 | 0.6932 | 0.2224 | 0.076* | 0.546 (12) |
H4C | 0.4673 | 0.7826 | 0.2006 | 0.076* | 0.454 (12) |
H4D | 0.5076 | 0.6622 | 0.1895 | 0.076* | 0.454 (12) |
C5 | 0.83562 (17) | 0.78291 (12) | 0.25117 (11) | 0.0367 (3) | |
C6 | 0.97540 (17) | 0.78955 (12) | 0.18877 (10) | 0.0342 (3) | |
H6 | 1.0284 | 0.8732 | 0.1863 | 0.041* | |
C7 | 0.86634 (17) | 0.72579 (13) | 0.06945 (10) | 0.0364 (3) | |
H7 | 0.8232 | 0.6407 | 0.0705 | 0.044* | |
C8 | 0.95589 (18) | 0.74035 (13) | −0.02018 (11) | 0.0372 (3) | |
C9 | 0.9407 (2) | 0.64170 (14) | −0.09576 (12) | 0.0463 (4) | |
H9 | 0.8788 | 0.5664 | −0.0889 | 0.056* | |
C10 | 1.0168 (3) | 0.65438 (17) | −0.18139 (14) | 0.0571 (4) | |
H10 | 1.0055 | 0.5875 | −0.2315 | 0.069* | |
C11 | 1.1081 (2) | 0.76386 (18) | −0.19285 (14) | 0.0575 (4) | |
H11 | 1.1596 | 0.7715 | −0.2502 | 0.069* | |
C12 | 1.1240 (2) | 0.86314 (17) | −0.11947 (14) | 0.0547 (4) | |
H12 | 1.1853 | 0.9381 | −0.1275 | 0.066* | |
C13 | 1.0487 (2) | 0.85126 (14) | −0.03375 (12) | 0.0459 (3) | |
H13 | 1.0603 | 0.9187 | 0.0158 | 0.055* | |
C14 | 0.89955 (18) | 0.88773 (13) | 0.35190 (11) | 0.0381 (3) | |
C15 | 0.8470 (2) | 0.71800 (14) | 0.42408 (12) | 0.0434 (3) | |
C16 | 0.8408 (3) | 0.64255 (18) | 0.50050 (15) | 0.0600 (5) | |
H16 | 0.8717 | 0.6717 | 0.5772 | 0.072* | |
C17 | 0.7871 (3) | 0.52212 (19) | 0.45907 (19) | 0.0714 (6) | |
H17 | 0.7817 | 0.4691 | 0.5089 | 0.086* | |
C18 | 0.7413 (3) | 0.47874 (17) | 0.34547 (18) | 0.0669 (5) | |
H18 | 0.7037 | 0.3971 | 0.3193 | 0.080* | |
C19 | 0.7512 (2) | 0.55614 (15) | 0.27045 (15) | 0.0539 (4) | |
H19 | 0.7221 | 0.5268 | 0.1939 | 0.065* | |
C20 | 0.80430 (19) | 0.67704 (13) | 0.30936 (12) | 0.0410 (3) | |
C21 | 1.11658 (18) | 0.74122 (14) | 0.24512 (12) | 0.0415 (3) | |
C22 | 1.2274 (2) | 0.80951 (16) | 0.35781 (13) | 0.0486 (4) | |
H22 | 1.2204 | 0.8845 | 0.3803 | 0.058* | |
C23 | 1.3353 (2) | 0.76867 (17) | 0.42759 (14) | 0.0516 (4) | |
H23 | 1.3521 | 0.6986 | 0.4000 | 0.062* | |
C24 | 1.4307 (2) | 0.82413 (18) | 0.54447 (14) | 0.0542 (4) | |
C25 | 1.3864 (3) | 0.9102 (2) | 0.60403 (15) | 0.0654 (5) | |
H25 | 1.2971 | 0.9376 | 0.5676 | 0.078* | |
C26 | 1.4737 (3) | 0.9552 (2) | 0.71647 (17) | 0.0810 (7) | |
H26 | 1.4418 | 1.0114 | 0.7561 | 0.097* | |
C27 | 1.6073 (3) | 0.9165 (3) | 0.7691 (2) | 0.0931 (9) | |
H27 | 1.6677 | 0.9477 | 0.8445 | 0.112* | |
C28 | 1.6530 (3) | 0.8331 (3) | 0.7128 (3) | 0.1039 (10) | |
H28 | 1.7444 | 0.8078 | 0.7497 | 0.125* | |
C29 | 1.5644 (3) | 0.7853 (3) | 0.6008 (2) | 0.0830 (7) | |
H29 | 1.5949 | 0.7268 | 0.5632 | 0.100* |
U11 | U22 | U33 | U12 | U13 | U23 | |
O1 | 0.0650 (8) | 0.0620 (8) | 0.0555 (7) | 0.0293 (6) | 0.0181 (6) | 0.0059 (6) |
O2 | 0.0677 (7) | 0.0387 (6) | 0.0321 (5) | 0.0100 (5) | 0.0121 (5) | −0.0012 (4) |
N1 | 0.0375 (6) | 0.0593 (8) | 0.0301 (6) | 0.0104 (5) | 0.0082 (5) | −0.0051 (5) |
N2 | 0.0613 (8) | 0.0429 (7) | 0.0250 (5) | 0.0086 (6) | 0.0145 (5) | −0.0029 (5) |
C1 | 0.0404 (7) | 0.0532 (9) | 0.0283 (7) | 0.0103 (6) | 0.0067 (5) | −0.0011 (6) |
C2 | 0.0431 (8) | 0.0851 (14) | 0.0402 (9) | 0.0100 (8) | −0.0006 (7) | −0.0092 (9) |
C3 | 0.0394 (18) | 0.051 (2) | 0.055 (2) | 0.0010 (15) | 0.0039 (14) | −0.0054 (17) |
C3A | 0.039 (2) | 0.102 (6) | 0.050 (2) | 0.018 (2) | 0.0014 (16) | 0.011 (3) |
C4 | 0.0388 (8) | 0.0880 (14) | 0.0545 (10) | 0.0097 (8) | 0.0153 (7) | −0.0037 (9) |
C5 | 0.0395 (6) | 0.0390 (7) | 0.0254 (6) | 0.0050 (5) | 0.0105 (5) | −0.0041 (5) |
C6 | 0.0375 (6) | 0.0365 (7) | 0.0237 (6) | 0.0056 (5) | 0.0092 (5) | −0.0005 (5) |
C7 | 0.0411 (6) | 0.0379 (7) | 0.0237 (6) | 0.0049 (5) | 0.0091 (5) | −0.0015 (5) |
C8 | 0.0425 (7) | 0.0419 (8) | 0.0240 (6) | 0.0110 (6) | 0.0090 (5) | 0.0009 (5) |
C9 | 0.0608 (9) | 0.0423 (8) | 0.0345 (7) | 0.0121 (7) | 0.0185 (7) | 0.0004 (6) |
C10 | 0.0781 (12) | 0.0610 (11) | 0.0378 (8) | 0.0248 (9) | 0.0267 (8) | −0.0002 (7) |
C11 | 0.0687 (11) | 0.0753 (12) | 0.0351 (8) | 0.0228 (9) | 0.0258 (8) | 0.0106 (8) |
C12 | 0.0635 (10) | 0.0562 (10) | 0.0428 (9) | 0.0092 (8) | 0.0215 (8) | 0.0129 (7) |
C13 | 0.0559 (8) | 0.0451 (8) | 0.0334 (7) | 0.0109 (7) | 0.0154 (6) | 0.0009 (6) |
C14 | 0.0426 (7) | 0.0405 (8) | 0.0265 (6) | 0.0086 (6) | 0.0100 (5) | −0.0028 (5) |
C15 | 0.0510 (8) | 0.0436 (8) | 0.0335 (7) | 0.0086 (6) | 0.0175 (6) | 0.0022 (6) |
C16 | 0.0809 (12) | 0.0603 (11) | 0.0423 (9) | 0.0185 (9) | 0.0265 (9) | 0.0127 (8) |
C17 | 0.1015 (16) | 0.0559 (12) | 0.0669 (13) | 0.0207 (11) | 0.0407 (12) | 0.0247 (10) |
C18 | 0.0915 (14) | 0.0417 (10) | 0.0708 (13) | 0.0098 (9) | 0.0420 (11) | 0.0086 (9) |
C19 | 0.0658 (10) | 0.0420 (9) | 0.0478 (9) | 0.0030 (7) | 0.0252 (8) | −0.0028 (7) |
C20 | 0.0454 (7) | 0.0407 (8) | 0.0329 (7) | 0.0050 (6) | 0.0166 (6) | −0.0009 (6) |
C21 | 0.0410 (7) | 0.0495 (9) | 0.0340 (7) | 0.0113 (6) | 0.0142 (6) | 0.0075 (6) |
C22 | 0.0454 (8) | 0.0581 (10) | 0.0400 (8) | 0.0157 (7) | 0.0098 (6) | 0.0084 (7) |
C23 | 0.0487 (8) | 0.0655 (11) | 0.0449 (9) | 0.0204 (7) | 0.0163 (7) | 0.0158 (8) |
C24 | 0.0418 (8) | 0.0762 (12) | 0.0399 (8) | 0.0111 (7) | 0.0089 (6) | 0.0195 (8) |
C25 | 0.0636 (11) | 0.0808 (14) | 0.0420 (9) | 0.0191 (10) | 0.0031 (8) | 0.0104 (9) |
C26 | 0.0912 (16) | 0.0830 (16) | 0.0447 (11) | 0.0016 (12) | 0.0090 (10) | 0.0056 (10) |
C27 | 0.0738 (14) | 0.113 (2) | 0.0494 (12) | −0.0149 (14) | −0.0117 (11) | 0.0253 (13) |
C28 | 0.0616 (13) | 0.159 (3) | 0.0767 (17) | 0.0308 (16) | −0.0095 (12) | 0.0473 (19) |
C29 | 0.0599 (11) | 0.121 (2) | 0.0753 (15) | 0.0402 (12) | 0.0142 (11) | 0.0323 (14) |
O1—C21 | 1.2092 (19) | C8—C13 | 1.389 (2) |
O2—C14 | 1.2141 (18) | C9—C10 | 1.385 (2) |
N1—C5 | 1.4610 (19) | C9—H9 | 0.93 |
N1—C4 | 1.467 (2) | C10—C11 | 1.362 (3) |
N1—C1 | 1.4772 (18) | C10—H10 | 0.93 |
N2—C14 | 1.3477 (19) | C11—C12 | 1.375 (3) |
N2—C15 | 1.398 (2) | C11—H11 | 0.93 |
N2—H2 | 0.86 | C12—C13 | 1.381 (2) |
C1—C2 | 1.525 (2) | C12—H12 | 0.93 |
C1—C7 | 1.529 (2) | C13—H13 | 0.93 |
C1—H1 | 0.98 | C15—C16 | 1.375 (2) |
C2—C3 | 1.443 (5) | C15—C20 | 1.387 (2) |
C2—C3A | 1.511 (6) | C16—C17 | 1.379 (3) |
C2—H2A | 0.97 | C16—H16 | 0.93 |
C2—H2B | 0.97 | C17—C18 | 1.377 (3) |
C2—H2C | 0.96 | C17—H17 | 0.93 |
C2—H2D | 0.96 | C18—C19 | 1.380 (3) |
C3—C4 | 1.503 (4) | C18—H18 | 0.93 |
C3—H3A | 0.97 | C19—C20 | 1.379 (2) |
C3—H3B | 0.97 | C19—H19 | 0.93 |
C3A—C4 | 1.402 (5) | C21—C22 | 1.481 (2) |
C3A—H3C | 0.97 | C22—C23 | 1.318 (2) |
C3A—H3D | 0.97 | C22—H22 | 0.93 |
C4—H4A | 0.97 | C23—C24 | 1.459 (2) |
C4—H4B | 0.97 | C23—H23 | 0.93 |
C4—H4C | 0.96 | C24—C29 | 1.383 (3) |
C4—H4D | 0.96 | C24—C25 | 1.394 (3) |
C5—C20 | 1.511 (2) | C25—C26 | 1.380 (3) |
C5—C14 | 1.5502 (18) | C25—H25 | 0.93 |
C5—C6 | 1.5623 (18) | C26—C27 | 1.367 (4) |
C6—C21 | 1.502 (2) | C26—H26 | 0.93 |
C6—C7 | 1.5268 (18) | C27—C28 | 1.356 (4) |
C6—H6 | 0.98 | C27—H27 | 0.93 |
C7—C8 | 1.5044 (18) | C28—C29 | 1.382 (4) |
C7—H7 | 0.98 | C28—H28 | 0.93 |
C8—C9 | 1.387 (2) | C29—H29 | 0.93 |
C5—N1—C4 | 120.21 (14) | C8—C7—C6 | 116.26 (11) |
C5—N1—C1 | 110.50 (11) | C8—C7—C1 | 114.40 (12) |
C4—N1—C1 | 109.02 (12) | C6—C7—C1 | 101.23 (10) |
C14—N2—C15 | 111.72 (11) | C8—C7—H7 | 108.2 |
C14—N2—H2 | 124.1 | C6—C7—H7 | 108.2 |
C15—N2—H2 | 124.1 | C1—C7—H7 | 108.2 |
N1—C1—C2 | 105.41 (12) | C9—C8—C13 | 117.87 (13) |
N1—C1—C7 | 105.36 (11) | C9—C8—C7 | 119.99 (13) |
C2—C1—C7 | 117.71 (14) | C13—C8—C7 | 122.08 (12) |
N1—C1—H1 | 109.3 | C10—C9—C8 | 120.57 (15) |
C2—C1—H1 | 109.3 | C10—C9—H9 | 119.7 |
C7—C1—H1 | 109.3 | C8—C9—H9 | 119.7 |
C3—C2—C1 | 106.1 (2) | C11—C10—C9 | 120.64 (15) |
C3A—C2—C1 | 103.4 (3) | C11—C10—H10 | 119.7 |
C3—C2—H2A | 110.5 | C9—C10—H10 | 119.7 |
C3A—C2—H2A | 82.8 | C10—C11—C12 | 119.90 (15) |
C1—C2—H2A | 110.5 | C10—C11—H11 | 120.0 |
C3—C2—H2B | 110.5 | C12—C11—H11 | 120.0 |
C3A—C2—H2B | 136.6 | C11—C12—C13 | 119.82 (16) |
C1—C2—H2B | 110.5 | C11—C12—H12 | 120.1 |
H2A—C2—H2B | 108.7 | C13—C12—H12 | 120.1 |
C3—C2—H2C | 80.9 | C12—C13—C8 | 121.20 (14) |
C3A—C2—H2C | 110.8 | C12—C13—H13 | 119.4 |
C1—C2—H2C | 111.0 | C8—C13—H13 | 119.4 |
H2A—C2—H2C | 131.3 | O2—C14—N2 | 126.33 (12) |
C3—C2—H2D | 133.8 | O2—C14—C5 | 125.50 (12) |
C3A—C2—H2D | 111.3 | N2—C14—C5 | 108.16 (12) |
C1—C2—H2D | 111.2 | C16—C15—C20 | 122.42 (15) |
H2B—C2—H2D | 80.9 | C16—C15—N2 | 127.65 (14) |
H2C—C2—H2D | 109.1 | C20—C15—N2 | 109.92 (13) |
C2—C3—C4 | 106.6 (3) | C15—C16—C17 | 117.51 (17) |
C2—C3—H3A | 110.4 | C15—C16—H16 | 121.2 |
C4—C3—H3A | 110.4 | C17—C16—H16 | 121.2 |
C2—C3—H3B | 110.4 | C18—C17—C16 | 121.39 (18) |
C4—C3—H3B | 110.4 | C18—C17—H17 | 119.3 |
H3A—C3—H3B | 108.6 | C16—C17—H17 | 119.3 |
C4—C3A—C2 | 108.3 (3) | C17—C18—C19 | 120.12 (17) |
C4—C3A—H3C | 110.0 | C17—C18—H18 | 119.9 |
C2—C3A—H3C | 110.0 | C19—C18—H18 | 119.9 |
C4—C3A—H3D | 110.0 | C20—C19—C18 | 119.81 (16) |
C2—C3A—H3D | 110.0 | C20—C19—H19 | 120.1 |
H3C—C3A—H3D | 108.4 | C18—C19—H19 | 120.1 |
C3A—C4—N1 | 106.5 (3) | C19—C20—C15 | 118.74 (15) |
N1—C4—C3 | 105.00 (19) | C19—C20—C5 | 132.59 (13) |
C3A—C4—H4A | 80.9 | C15—C20—C5 | 108.62 (12) |
N1—C4—H4A | 110.7 | O1—C21—C22 | 123.61 (15) |
C3—C4—H4A | 110.7 | O1—C21—C6 | 121.49 (13) |
C3A—C4—H4B | 134.2 | C22—C21—C6 | 114.88 (13) |
N1—C4—H4B | 110.7 | C23—C22—C21 | 122.89 (16) |
C3—C4—H4B | 110.7 | C23—C22—H22 | 118.6 |
H4A—C4—H4B | 108.8 | C21—C22—H22 | 118.6 |
C3A—C4—H4C | 110.6 | C22—C23—C24 | 125.45 (17) |
N1—C4—H4C | 110.6 | C22—C23—H23 | 117.3 |
C3—C4—H4C | 135.9 | C24—C23—H23 | 117.3 |
H4B—C4—H4C | 80.1 | C29—C24—C25 | 118.35 (18) |
C3A—C4—H4D | 110.2 | C29—C24—C23 | 118.88 (19) |
N1—C4—H4D | 110.3 | C25—C24—C23 | 122.67 (16) |
C3—C4—H4D | 81.4 | C26—C25—C24 | 120.8 (2) |
H4A—C4—H4D | 131.8 | C26—C25—H25 | 119.6 |
H4C—C4—H4D | 108.7 | C24—C25—H25 | 119.6 |
N1—C5—C20 | 119.04 (12) | C27—C26—C25 | 119.4 (3) |
N1—C5—C14 | 109.47 (12) | C27—C26—H26 | 120.3 |
C20—C5—C14 | 101.51 (11) | C25—C26—H26 | 120.3 |
N1—C5—C6 | 102.60 (10) | C28—C27—C26 | 120.9 (2) |
C20—C5—C6 | 113.67 (12) | C28—C27—H27 | 119.6 |
C14—C5—C6 | 110.64 (11) | C26—C27—H27 | 119.6 |
C21—C6—C7 | 116.10 (12) | C27—C28—C29 | 120.4 (2) |
C21—C6—C5 | 113.56 (11) | C27—C28—H28 | 119.8 |
C7—C6—C5 | 102.38 (10) | C29—C28—H28 | 119.8 |
C21—C6—H6 | 108.1 | C28—C29—C24 | 120.2 (3) |
C7—C6—H6 | 108.1 | C28—C29—H29 | 119.9 |
C5—C6—H6 | 108.1 | C24—C29—H29 | 119.9 |
C5—N1—C1—C2 | 134.55 (15) | C10—C11—C12—C13 | 0.6 (3) |
C4—N1—C1—C2 | 0.4 (2) | C11—C12—C13—C8 | −0.3 (3) |
C5—N1—C1—C7 | 9.38 (16) | C9—C8—C13—C12 | −0.2 (2) |
C4—N1—C1—C7 | −124.81 (15) | C7—C8—C13—C12 | −177.30 (14) |
N1—C1—C2—C3 | −17.5 (4) | C15—N2—C14—O2 | −175.92 (15) |
C7—C1—C2—C3 | 99.5 (3) | C15—N2—C14—C5 | 2.62 (17) |
N1—C1—C2—C3A | 15.1 (5) | N1—C5—C14—O2 | −55.88 (18) |
C7—C1—C2—C3A | 132.1 (5) | C20—C5—C14—O2 | 177.44 (14) |
C3A—C2—C3—C4 | −61.7 (4) | C6—C5—C14—O2 | 56.48 (19) |
C1—C2—C3—C4 | 27.8 (5) | N1—C5—C14—N2 | 125.56 (13) |
C3—C2—C3A—C4 | 72.5 (5) | C20—C5—C14—N2 | −1.11 (15) |
C1—C2—C3A—C4 | −26.5 (8) | C6—C5—C14—N2 | −122.08 (13) |
C2—C3A—C4—N1 | 27.2 (8) | C14—N2—C15—C16 | 175.59 (17) |
C2—C3A—C4—C3 | −64.8 (6) | C14—N2—C15—C20 | −3.20 (18) |
C5—N1—C4—C3A | −146.1 (5) | C20—C15—C16—C17 | −1.1 (3) |
C1—N1—C4—C3A | −17.1 (6) | N2—C15—C16—C17 | −179.71 (18) |
C5—N1—C4—C3 | −112.8 (3) | C15—C16—C17—C18 | 0.0 (3) |
C1—N1—C4—C3 | 16.2 (4) | C16—C17—C18—C19 | 1.0 (4) |
C2—C3—C4—C3A | 69.8 (6) | C17—C18—C19—C20 | −1.1 (3) |
C2—C3—C4—N1 | −27.4 (5) | C18—C19—C20—C15 | 0.1 (3) |
C4—N1—C5—C20 | 18.66 (19) | C18—C19—C20—C5 | 176.93 (17) |
C1—N1—C5—C20 | −109.67 (14) | C16—C15—C20—C19 | 1.0 (2) |
C4—N1—C5—C14 | −97.34 (16) | N2—C15—C20—C19 | 179.89 (14) |
C1—N1—C5—C14 | 134.34 (12) | C16—C15—C20—C5 | −176.54 (15) |
C4—N1—C5—C6 | 145.14 (14) | N2—C15—C20—C5 | 2.32 (17) |
C1—N1—C5—C6 | 16.82 (15) | N1—C5—C20—C19 | 62.0 (2) |
N1—C5—C6—C21 | −162.45 (12) | C14—C5—C20—C19 | −177.84 (17) |
C20—C5—C6—C21 | −32.59 (16) | C6—C5—C20—C19 | −59.0 (2) |
C14—C5—C6—C21 | 80.86 (15) | N1—C5—C20—C15 | −120.88 (13) |
N1—C5—C6—C7 | −36.51 (13) | C14—C5—C20—C15 | −0.74 (15) |
C20—C5—C6—C7 | 93.36 (13) | C6—C5—C20—C15 | 118.07 (13) |
C14—C5—C6—C7 | −153.20 (12) | C7—C6—C21—O1 | −5.4 (2) |
C21—C6—C7—C8 | −69.38 (16) | C5—C6—C21—O1 | 112.87 (15) |
C5—C6—C7—C8 | 166.35 (12) | C7—C6—C21—C22 | 176.22 (12) |
C21—C6—C7—C1 | 166.04 (12) | C5—C6—C21—C22 | −65.48 (16) |
C5—C6—C7—C1 | 41.76 (13) | O1—C21—C22—C23 | −11.3 (3) |
N1—C1—C7—C8 | −157.82 (12) | C6—C21—C22—C23 | 167.04 (15) |
C2—C1—C7—C8 | 85.07 (17) | C21—C22—C23—C24 | −171.52 (15) |
N1—C1—C7—C6 | −31.99 (14) | C22—C23—C24—C29 | −167.19 (19) |
C2—C1—C7—C6 | −149.10 (14) | C22—C23—C24—C25 | 16.6 (3) |
C6—C7—C8—C9 | 132.52 (15) | C29—C24—C25—C26 | −0.2 (3) |
C1—C7—C8—C9 | −109.94 (16) | C23—C24—C25—C26 | 176.07 (19) |
C6—C7—C8—C13 | −50.44 (19) | C24—C25—C26—C27 | 1.4 (3) |
C1—C7—C8—C13 | 67.09 (18) | C25—C26—C27—C28 | −1.2 (4) |
C13—C8—C9—C10 | 0.3 (2) | C26—C27—C28—C29 | −0.2 (4) |
C7—C8—C9—C10 | 177.46 (15) | C27—C28—C29—C24 | 1.4 (4) |
C8—C9—C10—C11 | 0.1 (3) | C25—C24—C29—C28 | −1.2 (3) |
C9—C10—C11—C12 | −0.5 (3) | C23—C24—C29—C28 | −177.6 (2) |
D—H···A | D—H | H···A | D···A | D—H···A |
N2—H2···O2i | 0.86 | 2.02 | 2.854 (2) | 162 |
C28—H28···Cg1ii | 0.93 | 2.89 | 3.815 (3) | 172 |
Symmetry codes: (i) −x+2, −y+2, −z+1; (ii) x−1, y, z−1. |
Experimental details
Crystal data | |
Chemical formula | C29H26N2O2 |
Mr | 434.52 |
Crystal system, space group | Triclinic, P1 |
Temperature (K) | 293 |
a, b, c (Å) | 8.4210 (2), 11.8895 (3), 12.5121 (3) |
α, β, γ (°) | 95.662 (1), 105.071 (1), 105.815 (1) |
V (Å3) | 1144.31 (5) |
Z | 2 |
Radiation type | Mo Kα |
µ (mm−1) | 0.08 |
Crystal size (mm) | 0.30 × 0.20 × 0.16 |
Data collection | |
Diffractometer | Bruker Kappa APEXII diffractometer |
Absorption correction | Multi-scan (Blessing, 1995) |
Tmin, Tmax | 0.977, 0.987 |
No. of measured, independent and observed [I > 2σ(I)] reflections | 30483, 7422, 4682 |
Rint | 0.024 |
(sin θ/λ)max (Å−1) | 0.731 |
Refinement | |
R[F2 > 2σ(F2)], wR(F2), S | 0.058, 0.200, 1.04 |
No. of reflections | 7422 |
No. of parameters | 308 |
H-atom treatment | H-atom parameters constrained |
Δρmax, Δρmin (e Å−3) | 0.43, −0.23 |
Computer programs: , APEX2 (Bruker, 2004) and SAINT (Bruker, 2004), SAINT (Bruker, 2004) and XPREP (Bruker, 2004), SHELXS97 (Sheldrick, 2008), SHELXL97 (Sheldrick, 2008), ORTEP-3 (Farrugia, 1997), PLATON (Spek, 2003).
D—H···A | D—H | H···A | D···A | D—H···A |
N2—H2···O2i | 0.86 | 2.02 | 2.854 (2) | 162 |
C28—H28···Cg1ii | 0.93 | 2.89 | 3.815 (3) | 172 |
Symmetry codes: (i) −x+2, −y+2, −z+1; (ii) x−1, y, z−1. |
Acknowledgements
SN thanks Professor M. N. Ponnuswamy, Department of Crystallography and Biophysics, University of Madras, India, for his guidance and valuable suggestions. SN also thanks the management of SRM, India, for their support.
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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.
Spiro-compounds are a particular class of naturally occurring substances characterized by highly pronounced biological properties (Kobayashi et al., 1991; James et al., 1991). The spiro-pyrrolidine ring system is also found in phermones, antibiotics (Gore et al., 1991) and antitumour agents (Tietze et al., 1988; Araki et al., 2002). Indole compounds can be used as bioactive drugs (Stevenson et al., 2000). Indole derivatives exhibit anti-allergic, central nervous system depressant and muscle relaxant properties (Harris & Uhle, 1960; Ho et al., 1986). In view of this biological importance, the crystal structure of the title compound has been determined and the results are presented here.
A displacement ellipsoid plot of the title compound is shown in Fig. 1. The pyrrolizine ring system is folded about the bridging N1—C1 bond, as observed in related structures (Ramesh et al., 2007). The sum of angles at N1 (339.7°) is in accordance with sp3 hybridization. The indole ring system (N2/C5/C14–C20) forms dihedral angles of 57.4 (6)° and 33.4 (5)°, respectively, with the C24—C29 and C8—C13 phenyl rings. The dihedral angle between the two phenyl rings is 82.9 (7)°. In the pyrrolizine ring system, the pyrrolidine ring (N1/C1/C5/C6/C7) adopts a twist conformation with Cremer & Pople (1975) puckering parameters q2 and ϕ of 0.419 (1) Å and 120.7 (2)°, respectively. Both major and minor conformers of the disordered pyrrolidine ring adopt envelope conformations; the puckering parameters q2 and ϕ are 0.267 (4) Å and -68.4 (8)°, respectively, for the major conformer (N1/C1-C4), and 0.254 (8) Å and 108.3 (8)°, respectively, for the minor conformer (N1/C1/C2/C3A/C4). Atom C3/C3A deviates by 0.411 (2)/0.389 Å from the N1/C1/C2/C4 plane.
The crystal structure is stabilized by intermolecular N—H···O hydrogen bonds and C—H···π interactions involving the C8-C13 phenyl ring (Table 1). The N—H···O hydrogen bonds link the molecules into centrosymmetric dimers (Fig. 2).