organic compounds
9,9-Diethyl-7-ethynyl-N,N-diphenyl-9H-fluoren-2-amine
aDepartment of Physics, Idhaya College for Women, Kumbakonam-1, India, bDepartment of Physics, Kunthavai Naachiar Govt. Arts College (W) (Autonomous), Thanjavur-7, India, and cOrganic Materials Lab, Department of Chemistry, Indian Institute of Technology Roorkee, Roorkee 247 667, India
*Correspondence e-mail: vasuki.arasi@yahoo.com
In the title compound, C31H27N, the fluorene unit is approximately planar (r.m.s deviation = 0.0255 Å). The dihedral angles between the fluorene fused ring system and two phenyl rings are 88.37 (5) and 66.31 (6)°. Weak intermolecular C—H⋯π(ring) interactions help to stabilize the crystal structure.
CCDC reference: 1523351
Structure description
Materials with enhanced two-photon absorption (TPA) properties have attracted considerable research interest in recent years due to their potential applications in photonics and optoelectronics. Optical limiting, two-photon microscopy, upconverted lasing, three-dimensional microfabrication and optical data storage constitute other important applications of TPA materials (Fitilis et al., 2007). Fluorene-based materials, such as terfluorenes, oligofluorenes, and polyfluorenes have emerged as promising candidates for OLEDs due to their high (PL) and (EL) efficiencies, good thermal stability and color tunability across the full visible range (Omer et al., 2009). Diphenylaminofluorene-based organic dyes with acetylene/vinyl linkages have been explored as potential candidates for applications in dye-sensitized solar cells, organic light-emitting diodes and non-linear optics, see: Singh et al. (2012); Thomas et al. (2012); Rogers et al. (2007). The structures of several compounds related to the title compound have been determined, see for example: Belfield et al. (1999); Liu et al. (2012); Liao et al. (2010); Shelton et al. (2013).
The title compound, 9,9-diethyl-7-ethynyl-N,N-diphenyl-9H-fluoren-2-amine was synthesized by a two-step protocol involving the Sonogashira coupling of 2-methylbut-3-yn-2-ol with the corresponding aryl bromide and the base-catalysed cleavage of the resulting functionalized but-3-yn-2-ol. In view of the potential importance of this material in the applications mentioned previously, the determination was carried out and the results are presented here. The molecular structure of the title compound is shown in Fig. 1. The fluorene moiety is almost planar with maximum deviation of 0.0447 (15) Å for C2 and a root mean square deviation of 0.0255 Å from the best-fit plane through all 13 non-hydrogen atoms. The fluorene fused ring system (C1–C13) makes dihedral angles of 88.37 (5) and 66.31 (6)°, respectively, with the phenyl rings (C20–C25) and (C26–C31). The dihedral angle between the phenyl rings is 61.28 (7)°. The sum of the bond angles around N1 (359.86°) indicates that the N1 atom exhibits sp2 The widening of the exocyclic angles C4—C11—C12 [131.22 (19)°] and C11—C12—C5 [130.6 (2)°] that deviate significantly from the expected value of 120°, might be due to the repulsion between H4 at C4 and H5 at C5 (H4⋯H5 = 2.692 Å). The torsion angle C8—C7—C18—C19 [−148 (10)°] indicates that the ethynyl group is in a (−)anticlinal (−ac) orientation with with respect to the (C5–C8/C13/C12) ring of the fluorene ring system. The ethyl substituents on the five-membered ring of the fluorene moiety are in (−)synclinal (−sc) which is evident from the torsion angles C10—C9—C16—C17 = −51.9 (2)° and C13—C9—C14—C15 = −51.7 (2)°. While no classical hydrogen bonds are present, two weak intermolecular C—H⋯π interactions contribute to the stability of the crystal packing (Table 1, Fig2. 2 and 3).
Synthesis and crystallization
A mixture of 7-bromo-9,9-diethyl-N,N-diphenyl-9H-fluoren-2-amine (5.0 g, 10.68 mmol), 2-methylbut-3-yn-2-ol (1.07 g,12.8 mmol), Pd(PPh3)2Cl2 (75 mg, 0.11 mmol), PPh3 (56 mg, 0.21 mmol), and CuI (21 mg, 0.11 mmol) were mixed in triethylamine (100 ml) under a nitrogen atmosphere. The resulting mixture was heated and stirred at 373 K for 24 h. After completion of the reaction, the mixture was poured into water and extracted with ethyl acetate. The organic extract was washed with brine solution and dried over Na2SO4. Finally, the solvent was removed under vacuum to yield a yellow residue, which was purified by as a yellow liquid (5.2 g, 55%), that underwent a further cleavage reaction on treatment with KOH (in toluene to produce the title acetylene as a yellow solid. Yield 71%; m.p. 393–395 K.
1H NMR (500 MHz, CDCl3) δ 0.35 (t, J = 7.5 Hz, 6 H), 1.95–1.87 (m, 4 H), 3.12 (s, 1 H), 7.05–7.01 (m, 3 H), 7.09 (d, J = 2.0 Hz, 1 H), 7.13–7.11 (m, 4 H), 7.28–7.25 (m, 4 H), 7.42 (d, J = 1.0 Hz, 1 H), 7.46 (dd, J = 6.5, 1.5 Hz, 1 H), 7.57–7.55 (m, 2 H); 13C NMR (125 MHz, CDCl3) δ 151.7, 149.9, 147.9, 147.8, 142.2, 135.7, 131.3, 126.5, 123.5, 122.7, 120.8, 119.3, 119.0, 118.9, 84.8, 56.1, 32.6, 8.5. HRMS calculated for C31H27N [M+] m/z 413.2138 found 413.2123.
Refinement
Crystal data, data collection and structure . One low angle reflection affected by the beamstop was omitted from the final cycles.
details are summarized in Table 2Structural data
CCDC reference: 1523351
https://doi.org/10.1107/S241431461602006X/sj4075sup1.cif
contains datablocks I, global. DOI:Structure factors: contains datablock I. DOI: https://doi.org/10.1107/S241431461602006X/sj4075Isup2.hkl
Supporting information file. DOI: https://doi.org/10.1107/S241431461602006X/sj4075Isup3.cml
Data collection: APEX2 (Bruker, 2008); cell
APEX2 and SAINT (Bruker, 2008); data reduction: SAINT and XPREP (Bruker, 2008); 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, 2012); software used to prepare material for publication: PLATON (Spek, 2009).C31H27N | F(000) = 880 |
Mr = 413.54 | Dx = 1.139 Mg m−3 |
Monoclinic, P21/c | Mo Kα radiation, λ = 0.71073 Å |
Hall symbol: -P 2ybc | Cell parameters from 5915 reflections |
a = 12.7365 (7) Å | θ = 2.3–28.4° |
b = 10.5803 (9) Å | µ = 0.07 mm−1 |
c = 18.6662 (11) Å | T = 296 K |
β = 106.531 (3)° | Block, yellow |
V = 2411.4 (3) Å3 | 0.40 × 0.30 × 0.20 mm |
Z = 4 |
Bruker Kappa APEXII CCD diffractometer | 5915 independent reflections |
Radiation source: fine-focus sealed tube | 2979 reflections with I > 2σ(I) |
Graphite monochromator | Rint = 0.039 |
ω and φ scan | θmax = 28.4°, θmin = 2.3° |
Absorption correction: multi-scan (SADABS; Bruker, 2008) | h = −16→16 |
Tmin = 0.974, Tmax = 0.987 | k = −11→13 |
17899 measured reflections | l = −24→24 |
Refinement on F2 | Secondary atom site location: difference Fourier map |
Least-squares matrix: full | Hydrogen site location: inferred from neighbouring sites |
R[F2 > 2σ(F2)] = 0.055 | H-atom parameters constrained |
wR(F2) = 0.181 | w = 1/[σ2(Fo2) + (0.0937P)2] where P = (Fo2 + 2Fc2)/3 |
S = 0.98 | (Δ/σ)max = 0.001 |
5915 reflections | Δρmax = 0.23 e Å−3 |
290 parameters | Δρmin = −0.16 e Å−3 |
0 restraints | Extinction correction: SHELXL, Fc*=kFc[1+0.001xFc2λ3/sin(2θ)]-1/4 |
Primary atom site location: structure-invariant direct methods | Extinction coefficient: 0.0103 (17) |
Geometry. All esds (except the esd in the dihedral angle between two l.s. planes) are estimated using the full covariance matrix. The cell esds are taken into account individually in the estimation of esds in distances, angles and torsion angles; correlations between esds in cell parameters are only used when they are defined by crystal symmetry. An approximate (isotropic) treatment of cell esds is used for estimating esds 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 > 2sigma(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 | ||
C21 | 0.55085 (16) | 0.2135 (2) | 1.03753 (10) | 0.0643 (6) | |
H21 | 0.5508 | 0.1528 | 1.0735 | 0.077* | |
C22 | 0.64185 (16) | 0.2875 (3) | 1.04460 (12) | 0.0740 (7) | |
H22 | 0.7034 | 0.2756 | 1.0851 | 0.089* | |
C23 | 0.64316 (17) | 0.3774 (3) | 0.99344 (14) | 0.0766 (7) | |
H23 | 0.7051 | 0.4271 | 0.9988 | 0.092* | |
C24 | 0.55307 (17) | 0.3948 (2) | 0.93396 (12) | 0.0768 (7) | |
H24 | 0.5537 | 0.4568 | 0.8988 | 0.092* | |
C25 | 0.46098 (16) | 0.3210 (2) | 0.92554 (10) | 0.0644 (6) | |
H25 | 0.3998 | 0.3336 | 0.8848 | 0.077* | |
C20 | 0.45945 (14) | 0.2291 (2) | 0.97722 (9) | 0.0505 (5) | |
C27 | 0.36126 (15) | 0.0663 (2) | 0.84942 (10) | 0.0546 (5) | |
H27 | 0.4332 | 0.0919 | 0.8560 | 0.066* | |
C28 | 0.30536 (17) | 0.0053 (2) | 0.78493 (10) | 0.0608 (5) | |
H28 | 0.3400 | −0.0094 | 0.7481 | 0.073* | |
C29 | 0.19913 (17) | −0.0347 (2) | 0.77381 (11) | 0.0640 (6) | |
H29 | 0.1618 | −0.0752 | 0.7297 | 0.077* | |
C30 | 0.14928 (16) | −0.0136 (2) | 0.82890 (11) | 0.0642 (6) | |
H30 | 0.0781 | −0.0419 | 0.8225 | 0.077* | |
C31 | 0.20344 (14) | 0.0488 (2) | 0.89339 (10) | 0.0562 (5) | |
H31 | 0.1680 | 0.0637 | 0.9298 | 0.067* | |
C26 | 0.31065 (14) | 0.08984 (19) | 0.90484 (9) | 0.0474 (4) | |
C2 | 0.32513 (15) | 0.1446 (2) | 1.03489 (9) | 0.0538 (5) | |
C1 | 0.31211 (14) | 0.0285 (2) | 1.06600 (9) | 0.0514 (5) | |
H1 | 0.3327 | −0.0457 | 1.0470 | 0.062* | |
C10 | 0.26812 (14) | 0.02479 (19) | 1.12564 (9) | 0.0477 (5) | |
C11 | 0.23914 (14) | 0.1362 (2) | 1.15521 (9) | 0.0518 (5) | |
C4 | 0.25459 (17) | 0.2518 (2) | 1.12523 (11) | 0.0687 (6) | |
H4 | 0.2365 | 0.3264 | 1.1452 | 0.082* | |
C3 | 0.29750 (17) | 0.2546 (2) | 1.06483 (11) | 0.0682 (6) | |
H3 | 0.3078 | 0.3320 | 1.0442 | 0.082* | |
C9 | 0.24326 (14) | −0.0910 (2) | 1.16669 (9) | 0.0520 (5) | |
C16 | 0.16364 (17) | −0.1821 (2) | 1.11368 (11) | 0.0719 (6) | |
H16A | 0.2013 | −0.2211 | 1.0810 | 0.086* | |
H16B | 0.1441 | −0.2487 | 1.1432 | 0.086* | |
C17 | 0.06195 (19) | −0.1228 (3) | 1.06713 (14) | 0.0999 (9) | |
H17A | 0.0173 | −0.1857 | 1.0356 | 0.150* | |
H17B | 0.0800 | −0.0579 | 1.0367 | 0.150* | |
H17C | 0.0225 | −0.0863 | 1.0988 | 0.150* | |
C14 | 0.34677 (18) | −0.1643 (3) | 1.20693 (12) | 0.0773 (7) | |
H14A | 0.3255 | −0.2375 | 1.2308 | 0.093* | |
H14B | 0.3807 | −0.1949 | 1.1698 | 0.093* | |
C15 | 0.43024 (18) | −0.0919 (3) | 1.26448 (13) | 0.0985 (9) | |
H15A | 0.4917 | −0.1455 | 1.2866 | 0.148* | |
H15B | 0.3986 | −0.0630 | 1.3025 | 0.148* | |
H15C | 0.4541 | −0.0205 | 1.2415 | 0.148* | |
C13 | 0.19257 (14) | −0.0270 (2) | 1.22260 (9) | 0.0509 (5) | |
C8 | 0.15084 (14) | −0.0827 (2) | 1.27558 (10) | 0.0600 (5) | |
H8 | 0.1502 | −0.1702 | 1.2800 | 0.072* | |
C7 | 0.10976 (15) | −0.0069 (3) | 1.32245 (10) | 0.0622 (6) | |
C6 | 0.11196 (16) | 0.1229 (3) | 1.31574 (10) | 0.0693 (7) | |
H6 | 0.0859 | 0.1729 | 1.3479 | 0.083* | |
C5 | 0.15192 (16) | 0.1802 (2) | 1.26230 (10) | 0.0660 (6) | |
H5 | 0.1517 | 0.2677 | 1.2576 | 0.079* | |
C12 | 0.19252 (14) | 0.1035 (2) | 1.21568 (9) | 0.0518 (5) | |
C18 | 0.06541 (18) | −0.0628 (3) | 1.37757 (12) | 0.0861 (8) | |
C19 | 0.0276 (3) | −0.1050 (4) | 1.42180 (17) | 0.1355 (14) | |
H19 | −0.0028 | −0.1390 | 1.4573 | 0.163* | |
N1 | 0.36621 (12) | 0.15140 (17) | 0.97122 (7) | 0.0590 (5) |
U11 | U22 | U33 | U12 | U13 | U23 | |
C21 | 0.0670 (12) | 0.0672 (16) | 0.0527 (11) | 0.0011 (11) | 0.0077 (9) | 0.0075 (10) |
C22 | 0.0524 (12) | 0.0841 (19) | 0.0727 (13) | 0.0025 (12) | −0.0028 (10) | −0.0065 (13) |
C23 | 0.0582 (13) | 0.0771 (19) | 0.0940 (16) | −0.0180 (12) | 0.0205 (12) | −0.0110 (14) |
C24 | 0.0750 (15) | 0.0739 (18) | 0.0801 (14) | −0.0177 (12) | 0.0196 (12) | 0.0172 (13) |
C25 | 0.0574 (11) | 0.0753 (16) | 0.0556 (11) | −0.0088 (11) | 0.0083 (9) | 0.0125 (11) |
C20 | 0.0503 (10) | 0.0575 (14) | 0.0459 (9) | −0.0052 (9) | 0.0173 (8) | −0.0029 (9) |
C27 | 0.0548 (10) | 0.0615 (14) | 0.0500 (10) | −0.0019 (9) | 0.0188 (8) | 0.0014 (9) |
C28 | 0.0759 (13) | 0.0580 (14) | 0.0529 (10) | 0.0068 (11) | 0.0257 (10) | −0.0049 (10) |
C29 | 0.0744 (13) | 0.0572 (15) | 0.0549 (11) | −0.0053 (11) | 0.0094 (10) | −0.0105 (10) |
C30 | 0.0560 (11) | 0.0712 (16) | 0.0619 (12) | −0.0090 (10) | 0.0108 (10) | 0.0009 (11) |
C31 | 0.0530 (11) | 0.0673 (15) | 0.0501 (10) | −0.0038 (9) | 0.0174 (8) | 0.0016 (9) |
C26 | 0.0512 (10) | 0.0503 (12) | 0.0418 (8) | −0.0019 (8) | 0.0150 (7) | 0.0035 (8) |
C2 | 0.0601 (11) | 0.0611 (14) | 0.0441 (9) | −0.0130 (9) | 0.0211 (8) | −0.0031 (9) |
C1 | 0.0587 (11) | 0.0550 (13) | 0.0443 (9) | −0.0039 (9) | 0.0206 (8) | −0.0038 (9) |
C10 | 0.0529 (10) | 0.0531 (13) | 0.0386 (8) | −0.0046 (9) | 0.0154 (7) | −0.0011 (8) |
C11 | 0.0606 (11) | 0.0532 (14) | 0.0462 (9) | −0.0104 (9) | 0.0226 (8) | −0.0066 (9) |
C4 | 0.0982 (16) | 0.0506 (15) | 0.0712 (13) | −0.0120 (12) | 0.0465 (12) | −0.0089 (11) |
C3 | 0.0951 (15) | 0.0522 (14) | 0.0692 (12) | −0.0147 (11) | 0.0427 (12) | 0.0003 (11) |
C9 | 0.0597 (11) | 0.0541 (13) | 0.0463 (9) | 0.0010 (9) | 0.0214 (8) | 0.0038 (9) |
C16 | 0.0879 (15) | 0.0630 (16) | 0.0703 (13) | −0.0146 (12) | 0.0315 (12) | −0.0076 (11) |
C17 | 0.0784 (17) | 0.120 (3) | 0.0949 (17) | −0.0123 (16) | 0.0142 (14) | −0.0243 (17) |
C14 | 0.0819 (15) | 0.0798 (19) | 0.0796 (14) | 0.0173 (13) | 0.0384 (12) | 0.0197 (13) |
C15 | 0.0623 (14) | 0.149 (3) | 0.0800 (15) | 0.0118 (16) | 0.0137 (12) | 0.0062 (17) |
C13 | 0.0496 (10) | 0.0641 (15) | 0.0393 (9) | −0.0024 (9) | 0.0132 (8) | 0.0036 (9) |
C8 | 0.0587 (11) | 0.0731 (16) | 0.0501 (10) | 0.0004 (10) | 0.0182 (9) | 0.0124 (10) |
C7 | 0.0539 (11) | 0.0919 (19) | 0.0427 (10) | −0.0035 (11) | 0.0168 (8) | 0.0059 (11) |
C6 | 0.0666 (13) | 0.098 (2) | 0.0517 (11) | −0.0093 (12) | 0.0304 (10) | −0.0158 (12) |
C5 | 0.0758 (13) | 0.0680 (16) | 0.0626 (12) | −0.0131 (11) | 0.0332 (10) | −0.0150 (11) |
C12 | 0.0541 (10) | 0.0615 (15) | 0.0430 (9) | −0.0090 (9) | 0.0187 (8) | −0.0064 (9) |
C18 | 0.0724 (14) | 0.135 (3) | 0.0576 (12) | 0.0028 (14) | 0.0290 (11) | 0.0205 (14) |
C19 | 0.124 (2) | 0.203 (4) | 0.101 (2) | 0.006 (2) | 0.0660 (19) | 0.058 (2) |
N1 | 0.0655 (10) | 0.0740 (13) | 0.0426 (8) | −0.0238 (9) | 0.0235 (7) | −0.0060 (8) |
C21—C22 | 1.373 (3) | C11—C12 | 1.459 (2) |
C21—C20 | 1.380 (2) | C4—C3 | 1.386 (3) |
C21—H21 | 0.9300 | C4—H4 | 0.9300 |
C22—C23 | 1.351 (3) | C3—H3 | 0.9300 |
C22—H22 | 0.9300 | C9—C14 | 1.529 (3) |
C23—C24 | 1.363 (3) | C9—C13 | 1.532 (2) |
C23—H23 | 0.9300 | C9—C16 | 1.538 (3) |
C24—C25 | 1.380 (3) | C16—C17 | 1.478 (3) |
C24—H24 | 0.9300 | C16—H16A | 0.9700 |
C25—C20 | 1.374 (3) | C16—H16B | 0.9700 |
C25—H25 | 0.9300 | C17—H17A | 0.9600 |
C20—N1 | 1.422 (2) | C17—H17B | 0.9600 |
C27—C28 | 1.373 (3) | C17—H17C | 0.9600 |
C27—C26 | 1.388 (2) | C14—C15 | 1.490 (3) |
C27—H27 | 0.9300 | C14—H14A | 0.9700 |
C28—C29 | 1.376 (3) | C14—H14B | 0.9700 |
C28—H28 | 0.9300 | C15—H15A | 0.9600 |
C29—C30 | 1.372 (3) | C15—H15B | 0.9600 |
C29—H29 | 0.9300 | C15—H15C | 0.9600 |
C30—C31 | 1.374 (3) | C13—C8 | 1.381 (2) |
C30—H30 | 0.9300 | C13—C12 | 1.387 (3) |
C31—C26 | 1.390 (2) | C8—C7 | 1.394 (3) |
C31—H31 | 0.9300 | C8—H8 | 0.9300 |
C26—N1 | 1.400 (2) | C7—C6 | 1.380 (3) |
C2—C3 | 1.380 (3) | C7—C18 | 1.434 (3) |
C2—C1 | 1.389 (3) | C6—C5 | 1.382 (3) |
C2—N1 | 1.430 (2) | C6—H6 | 0.9300 |
C1—C10 | 1.382 (2) | C5—C12 | 1.392 (3) |
C1—H1 | 0.9300 | C5—H5 | 0.9300 |
C10—C11 | 1.395 (3) | C18—C19 | 1.158 (3) |
C10—C9 | 1.525 (3) | C19—H19 | 0.9300 |
C11—C4 | 1.383 (3) | ||
C22—C21—C20 | 120.2 (2) | C10—C9—C14 | 112.37 (15) |
C22—C21—H21 | 119.9 | C10—C9—C13 | 100.07 (16) |
C20—C21—H21 | 119.9 | C14—C9—C13 | 111.15 (14) |
C23—C22—C21 | 120.86 (19) | C10—C9—C16 | 111.90 (14) |
C23—C22—H22 | 119.6 | C14—C9—C16 | 108.49 (19) |
C21—C22—H22 | 119.6 | C13—C9—C16 | 112.75 (15) |
C22—C23—C24 | 119.6 (2) | C17—C16—C9 | 114.8 (2) |
C22—C23—H23 | 120.2 | C17—C16—H16A | 108.6 |
C24—C23—H23 | 120.2 | C9—C16—H16A | 108.6 |
C23—C24—C25 | 120.5 (2) | C17—C16—H16B | 108.6 |
C23—C24—H24 | 119.7 | C9—C16—H16B | 108.6 |
C25—C24—H24 | 119.7 | H16A—C16—H16B | 107.5 |
C20—C25—C24 | 120.11 (18) | C16—C17—H17A | 109.5 |
C20—C25—H25 | 119.9 | C16—C17—H17B | 109.5 |
C24—C25—H25 | 119.9 | H17A—C17—H17B | 109.5 |
C25—C20—C21 | 118.68 (18) | C16—C17—H17C | 109.5 |
C25—C20—N1 | 122.16 (16) | H17A—C17—H17C | 109.5 |
C21—C20—N1 | 119.15 (18) | H17B—C17—H17C | 109.5 |
C28—C27—C26 | 120.19 (17) | C15—C14—C9 | 115.6 (2) |
C28—C27—H27 | 119.9 | C15—C14—H14A | 108.4 |
C26—C27—H27 | 119.9 | C9—C14—H14A | 108.4 |
C27—C28—C29 | 121.27 (18) | C15—C14—H14B | 108.4 |
C27—C28—H28 | 119.4 | C9—C14—H14B | 108.4 |
C29—C28—H28 | 119.4 | H14A—C14—H14B | 107.4 |
C30—C29—C28 | 118.83 (18) | C14—C15—H15A | 109.5 |
C30—C29—H29 | 120.6 | C14—C15—H15B | 109.5 |
C28—C29—H29 | 120.6 | H15A—C15—H15B | 109.5 |
C29—C30—C31 | 120.71 (18) | C14—C15—H15C | 109.5 |
C29—C30—H30 | 119.6 | H15A—C15—H15C | 109.5 |
C31—C30—H30 | 119.6 | H15B—C15—H15C | 109.5 |
C30—C31—C26 | 120.73 (18) | C8—C13—C12 | 120.10 (18) |
C30—C31—H31 | 119.6 | C8—C13—C9 | 128.4 (2) |
C26—C31—H31 | 119.6 | C12—C13—C9 | 111.46 (15) |
C27—C26—C31 | 118.25 (16) | C13—C8—C7 | 119.6 (2) |
C27—C26—N1 | 121.20 (15) | C13—C8—H8 | 120.2 |
C31—C26—N1 | 120.55 (15) | C7—C8—H8 | 120.2 |
C3—C2—C1 | 120.17 (17) | C6—C7—C8 | 119.62 (19) |
C3—C2—N1 | 119.33 (19) | C6—C7—C18 | 119.8 (2) |
C1—C2—N1 | 120.50 (18) | C8—C7—C18 | 120.6 (2) |
C10—C1—C2 | 119.07 (19) | C7—C6—C5 | 121.5 (2) |
C10—C1—H1 | 120.5 | C7—C6—H6 | 119.2 |
C2—C1—H1 | 120.5 | C5—C6—H6 | 119.2 |
C1—C10—C11 | 120.56 (18) | C6—C5—C12 | 118.3 (2) |
C1—C10—C9 | 128.10 (18) | C6—C5—H5 | 120.9 |
C11—C10—C9 | 111.33 (15) | C12—C5—H5 | 120.9 |
C4—C11—C10 | 120.23 (17) | C13—C12—C5 | 120.81 (18) |
C4—C11—C12 | 131.22 (19) | C13—C12—C11 | 108.57 (16) |
C10—C11—C12 | 108.53 (17) | C5—C12—C11 | 130.6 (2) |
C11—C4—C3 | 118.9 (2) | C19—C18—C7 | 178.1 (3) |
C11—C4—H4 | 120.6 | C18—C19—H19 | 180.0 |
C3—C4—H4 | 120.6 | C26—N1—C20 | 122.60 (14) |
C2—C3—C4 | 121.1 (2) | C26—N1—C2 | 119.97 (14) |
C2—C3—H3 | 119.5 | C20—N1—C2 | 117.29 (14) |
C4—C3—H3 | 119.5 | ||
C20—C21—C22—C23 | 0.8 (4) | C13—C9—C14—C15 | −51.7 (2) |
C21—C22—C23—C24 | −0.1 (4) | C16—C9—C14—C15 | −176.18 (18) |
C22—C23—C24—C25 | −0.3 (4) | C10—C9—C13—C8 | 178.72 (17) |
C23—C24—C25—C20 | −0.1 (4) | C14—C9—C13—C8 | −62.4 (2) |
C24—C25—C20—C21 | 0.8 (3) | C16—C9—C13—C8 | 59.7 (2) |
C24—C25—C20—N1 | 179.5 (2) | C10—C9—C13—C12 | −1.77 (17) |
C22—C21—C20—C25 | −1.1 (3) | C14—C9—C13—C12 | 117.12 (19) |
C22—C21—C20—N1 | −179.93 (19) | C16—C9—C13—C12 | −120.81 (18) |
C26—C27—C28—C29 | −0.5 (3) | C12—C13—C8—C7 | −0.6 (2) |
C27—C28—C29—C30 | −0.6 (3) | C9—C13—C8—C7 | 178.83 (16) |
C28—C29—C30—C31 | 1.5 (3) | C13—C8—C7—C6 | −0.5 (3) |
C29—C30—C31—C26 | −1.2 (3) | C13—C8—C7—C18 | 179.61 (17) |
C28—C27—C26—C31 | 0.8 (3) | C8—C7—C6—C5 | 1.4 (3) |
C28—C27—C26—N1 | 179.70 (19) | C18—C7—C6—C5 | −178.63 (18) |
C30—C31—C26—C27 | 0.1 (3) | C7—C6—C5—C12 | −1.3 (3) |
C30—C31—C26—N1 | −178.85 (18) | C8—C13—C12—C5 | 0.8 (3) |
C3—C2—C1—C10 | 2.0 (3) | C9—C13—C12—C5 | −178.76 (15) |
N1—C2—C1—C10 | −177.44 (15) | C8—C13—C12—C11 | −179.06 (14) |
C2—C1—C10—C11 | −1.2 (3) | C9—C13—C12—C11 | 1.39 (19) |
C2—C1—C10—C9 | 177.93 (16) | C6—C5—C12—C13 | 0.2 (3) |
C1—C10—C11—C4 | −0.3 (3) | C6—C5—C12—C11 | 179.97 (17) |
C9—C10—C11—C4 | −179.56 (17) | C4—C11—C12—C13 | 178.18 (19) |
C1—C10—C11—C12 | 178.43 (15) | C10—C11—C12—C13 | −0.3 (2) |
C9—C10—C11—C12 | −0.87 (19) | C4—C11—C12—C5 | −1.7 (3) |
C10—C11—C4—C3 | 1.0 (3) | C10—C11—C12—C5 | 179.85 (18) |
C12—C11—C4—C3 | −177.32 (17) | C6—C7—C18—C19 | 32 (10) |
C1—C2—C3—C4 | −1.2 (3) | C8—C7—C18—C19 | −148 (10) |
N1—C2—C3—C4 | 178.21 (16) | C27—C26—N1—C20 | 21.4 (3) |
C11—C4—C3—C2 | −0.3 (3) | C31—C26—N1—C20 | −159.70 (19) |
C1—C10—C9—C14 | 64.3 (2) | C27—C26—N1—C2 | −163.01 (19) |
C11—C10—C9—C14 | −116.43 (18) | C31—C26—N1—C2 | 15.9 (3) |
C1—C10—C9—C13 | −177.68 (16) | C25—C20—N1—C26 | 48.3 (3) |
C11—C10—C9—C13 | 1.56 (17) | C21—C20—N1—C26 | −132.9 (2) |
C1—C10—C9—C16 | −58.0 (2) | C25—C20—N1—C2 | −127.4 (2) |
C11—C10—C9—C16 | 121.22 (17) | C21—C20—N1—C2 | 51.4 (3) |
C10—C9—C16—C17 | −51.9 (2) | C3—C2—N1—C26 | −120.5 (2) |
C14—C9—C16—C17 | −176.40 (18) | C1—C2—N1—C26 | 58.9 (2) |
C13—C9—C16—C17 | 60.0 (2) | C3—C2—N1—C20 | 55.3 (2) |
C10—C9—C14—C15 | 59.6 (2) | C1—C2—N1—C20 | −125.3 (2) |
Cg1 is the centroid of the C26–C31 phenyl ring and Cg2 is the centroid of the C5–C8/C13/C12 phenyl ring of the fluorene moiety. |
D—H···A | D—H | H···A | D···A | D—H···A |
C5—H5···Cg1i | 0.93 | 2.76 | 3.508 (3) | 138 |
C30—H30···Cg2ii | 0.93 | 2.94 | 3.764 (2) | 149 |
Symmetry codes: (i) x, −y−1/2, z−1/2; (ii) −x, −y, −z. |
Acknowledgements
The authors thank the Sophisticated Analytical Instrument Facility, IIT Madras, Chennai, for the single-crystal X-ray data collection.
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