organic compounds
3,3-Dimethyl-9-phenyl-3,4-dihydroacridin-1(2H)-one
aDepartment of Chemistry, Islamic Azad University, Dorood Branch, Dorood 688173551, Iran
*Correspondence e-mail: a_bazgir@yahoo.com
In the molecule of the title compound, C21H19NO, the terminal saturated six-membered ring of the dihydroacridine unit adopts an while the other two fused rings are nearly coplanar, with a dihedral angle of 2.61 (3)°. The coplanar ring system is oriented with respect to the phenyl ring at a dihedral angle of 74.58 (3)°. In the there is a C—H⋯π contact between the central ring of the dihydroacridine system and the phenyl ring and a π–π contact between the two central rings [centroid–centroid distance = 3.809 (1) Å].
Related literature
For general background, see: Kalluraya & Sreenivasa (1998); Doube et al. (1998); Maguire et al. (1994). For bond-length data, see: Allen et al. (1987).
Experimental
Crystal data
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Refinement
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Data collection: X-AREA (Stoe & Cie, 2005); cell X-AREA; data reduction: X-RED (Stoe & Cie, 2005); 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); software used to prepare material for publication: WinGX (Farrugia, 1999).
Supporting information
10.1107/S1600536808022083/hk2495sup1.cif
contains datablocks global, I. DOI:Structure factors: contains datablock I. DOI: 10.1107/S1600536808022083/hk2495Isup2.hkl
For the preparation of the title compound, a mixture of 5,5-dimethylcyclohexane -1,3-dione (1 mmol), (2-aminophenyl)(phenyl)methanone (1 mmol) and benzyl tri- ethyl ammonium chloride (0.1 g) in water (5 ml) was stirred at reflux for 5 h. After completion of reaction (monitored by TLC) the reaction mixture was filtered and the precipitate washed with water (15 ml), and then recrystallized from EtOH/water (1:2) to afford the pure product (yield; 0.195 g, 65%).
H atoms were positioned geometrically, with C-H = 0.93, 0.97 and 0.96 Å for aromatic, methylene and methyl H, respectively, and constrained to ride on their parent atoms with Uiso(H) = 1.2Ueq(C).
Data collection: X-AREA (Stoe & Cie, 2005); cell
X-AREA (Stoe & Cie, 2005); data reduction: X-RED (Stoe & Cie, 2005); 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); software used to prepare material for publication: WinGX (Farrugia, 1999).Fig. 1. The molecular structure of the title molecule, with the atom-numbering scheme. Displacement ellipsoids are drawn at the 30% probability level. |
C21H19NO | F(000) = 1280 |
Mr = 301.37 | Dx = 1.222 Mg m−3 |
Monoclinic, C2/c | Mo Kα radiation, λ = 0.71073 Å |
Hall symbol: -C 2yc | Cell parameters from 1575 reflections |
a = 16.341 (3) Å | θ = 2.2–28.0° |
b = 11.3889 (18) Å | µ = 0.08 mm−1 |
c = 18.772 (4) Å | T = 298 K |
β = 110.386 (14)° | Block, colorless |
V = 3274.8 (10) Å3 | 0.33 × 0.22 × 0.1 mm |
Z = 8 |
Stoe IPDSII diffractometer | 3032 reflections with I > 2σ(I) |
rotation method scans | Rint = 0.044 |
Absorption correction: numerical shape of crystal determined optically (X-SHAPE; Stoe & Cie, 2005) | θmax = 28.0°, θmin = 2.2° |
Tmin = 0.980, Tmax = 0.990 | h = −21→21 |
11268 measured reflections | k = −14→15 |
3882 independent reflections | l = −24→17 |
Refinement on F2 | 0 restraints |
Least-squares matrix: full | H-atom parameters constrained |
R[F2 > 2σ(F2)] = 0.061 | w = 1/[σ2(Fo2) + (0.0491P)2 + 1.8747P] where P = (Fo2 + 2Fc2)/3 |
wR(F2) = 0.143 | (Δ/σ)max = 0.002 |
S = 1.10 | Δρmax = 0.24 e Å−3 |
3882 reflections | Δρmin = −0.26 e Å−3 |
208 parameters |
C21H19NO | V = 3274.8 (10) Å3 |
Mr = 301.37 | Z = 8 |
Monoclinic, C2/c | Mo Kα radiation |
a = 16.341 (3) Å | µ = 0.08 mm−1 |
b = 11.3889 (18) Å | T = 298 K |
c = 18.772 (4) Å | 0.33 × 0.22 × 0.1 mm |
β = 110.386 (14)° |
Stoe IPDSII diffractometer | 3882 independent reflections |
Absorption correction: numerical shape of crystal determined optically (X-SHAPE; Stoe & Cie, 2005) | 3032 reflections with I > 2σ(I) |
Tmin = 0.980, Tmax = 0.990 | Rint = 0.044 |
11268 measured reflections |
R[F2 > 2σ(F2)] = 0.061 | 0 restraints |
wR(F2) = 0.143 | H-atom parameters constrained |
S = 1.10 | Δρmax = 0.24 e Å−3 |
3882 reflections | Δρmin = −0.26 e Å−3 |
208 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. |
x | y | z | Uiso*/Ueq | ||
O1 | 0.81274 (12) | 0.40574 (13) | −0.19111 (8) | 0.0814 (5) | |
N1 | 0.88041 (9) | 0.16743 (13) | 0.03136 (8) | 0.0490 (3) | |
C1 | 0.87761 (13) | 0.08450 (15) | −0.08673 (11) | 0.0533 (4) | |
H1A | 0.8206 | 0.048 | −0.1079 | 0.064* | |
H1B | 0.9169 | 0.0277 | −0.0535 | 0.064* | |
C2 | 0.91044 (11) | 0.11403 (15) | −0.15138 (10) | 0.0494 (4) | |
C3 | 0.90577 (17) | 0.00459 (19) | −0.20010 (14) | 0.0736 (6) | |
H3A | 0.9239 | 0.0244 | −0.2421 | 0.088* | |
H3B | 0.8469 | −0.0242 | −0.219 | 0.088* | |
H3C | 0.9436 | −0.055 | −0.1698 | 0.088* | |
C4 | 1.00438 (13) | 0.1581 (2) | −0.12016 (13) | 0.0681 (6) | |
H4A | 1.0074 | 0.2267 | −0.0897 | 0.082* | |
H4B | 1.0236 | 0.1773 | −0.1616 | 0.082* | |
H4C | 1.0413 | 0.0979 | −0.0896 | 0.082* | |
C5 | 0.85007 (13) | 0.20855 (17) | −0.19917 (10) | 0.0570 (4) | |
H5A | 0.8728 | 0.234 | −0.238 | 0.068* | |
H5B | 0.7933 | 0.1736 | −0.2249 | 0.068* | |
C6 | 0.83780 (12) | 0.31480 (15) | −0.15688 (9) | 0.0493 (4) | |
C7 | 0.85331 (10) | 0.30320 (13) | −0.07363 (9) | 0.0405 (3) | |
C8 | 0.84960 (9) | 0.39807 (14) | −0.02880 (9) | 0.0411 (3) | |
C9 | 0.83425 (10) | 0.52170 (14) | −0.05688 (9) | 0.0423 (3) | |
C10 | 0.90001 (12) | 0.58667 (17) | −0.06880 (11) | 0.0550 (4) | |
H10 | 0.9535 | 0.5517 | −0.0623 | 0.066* | |
C11 | 0.88648 (13) | 0.70308 (17) | −0.09023 (12) | 0.0635 (5) | |
H11 | 0.9312 | 0.7465 | −0.0973 | 0.076* | |
C12 | 0.80695 (14) | 0.75516 (16) | −0.10110 (11) | 0.0626 (5) | |
H12 | 0.7977 | 0.8333 | −0.1162 | 0.075* | |
C13 | 0.74135 (13) | 0.69126 (16) | −0.08949 (12) | 0.0595 (5) | |
H13 | 0.6877 | 0.7264 | −0.0968 | 0.071* | |
C14 | 0.75471 (11) | 0.57519 (15) | −0.06710 (10) | 0.0496 (4) | |
H14 | 0.7102 | 0.5327 | −0.0589 | 0.06* | |
C15 | 0.86231 (10) | 0.37692 (15) | 0.04941 (9) | 0.0436 (4) | |
C16 | 0.86349 (12) | 0.46714 (19) | 0.10169 (11) | 0.0584 (5) | |
H16 | 0.8566 | 0.5449 | 0.0856 | 0.07* | |
C17 | 0.87457 (14) | 0.4412 (2) | 0.17538 (11) | 0.0720 (6) | |
H17 | 0.8753 | 0.5013 | 0.2091 | 0.086* | |
C18 | 0.88480 (14) | 0.3247 (2) | 0.20068 (11) | 0.0746 (6) | |
H18 | 0.8914 | 0.308 | 0.2509 | 0.09* | |
C19 | 0.88514 (13) | 0.2360 (2) | 0.15250 (11) | 0.0640 (5) | |
H19 | 0.8919 | 0.159 | 0.17 | 0.077* | |
C20 | 0.87526 (10) | 0.25947 (16) | 0.07591 (9) | 0.0464 (4) | |
C21 | 0.87064 (10) | 0.18891 (14) | −0.04023 (9) | 0.0429 (4) |
U11 | U22 | U33 | U12 | U13 | U23 | |
O1 | 0.1371 (15) | 0.0625 (8) | 0.0472 (7) | 0.0205 (9) | 0.0353 (8) | 0.0142 (7) |
N1 | 0.0525 (8) | 0.0514 (8) | 0.0475 (8) | 0.0020 (6) | 0.0228 (6) | 0.0132 (6) |
C1 | 0.0635 (11) | 0.0421 (8) | 0.0588 (10) | −0.0016 (8) | 0.0269 (9) | 0.0013 (8) |
C2 | 0.0542 (9) | 0.0484 (9) | 0.0504 (9) | −0.0015 (8) | 0.0241 (8) | −0.0063 (7) |
C3 | 0.0902 (15) | 0.0633 (12) | 0.0775 (14) | −0.0042 (11) | 0.0420 (12) | −0.0184 (11) |
C4 | 0.0554 (11) | 0.0764 (13) | 0.0784 (14) | −0.0041 (10) | 0.0310 (10) | −0.0112 (11) |
C5 | 0.0679 (11) | 0.0613 (11) | 0.0427 (9) | −0.0011 (9) | 0.0205 (8) | −0.0042 (8) |
C6 | 0.0590 (10) | 0.0507 (9) | 0.0398 (8) | 0.0030 (8) | 0.0192 (7) | 0.0076 (7) |
C7 | 0.0420 (8) | 0.0436 (8) | 0.0388 (8) | 0.0000 (6) | 0.0177 (6) | 0.0050 (6) |
C8 | 0.0386 (7) | 0.0455 (8) | 0.0421 (8) | 0.0000 (6) | 0.0178 (6) | 0.0053 (7) |
C9 | 0.0469 (8) | 0.0433 (8) | 0.0384 (8) | −0.0016 (7) | 0.0170 (6) | 0.0009 (6) |
C10 | 0.0464 (9) | 0.0595 (11) | 0.0592 (11) | −0.0024 (8) | 0.0187 (8) | 0.0118 (9) |
C11 | 0.0650 (12) | 0.0596 (11) | 0.0626 (12) | −0.0196 (9) | 0.0179 (9) | 0.0093 (9) |
C12 | 0.0777 (13) | 0.0381 (9) | 0.0645 (12) | −0.0062 (9) | 0.0152 (10) | 0.0042 (8) |
C13 | 0.0607 (11) | 0.0460 (9) | 0.0703 (12) | 0.0065 (8) | 0.0211 (9) | 0.0007 (9) |
C14 | 0.0509 (9) | 0.0445 (9) | 0.0579 (10) | −0.0011 (7) | 0.0245 (8) | 0.0008 (8) |
C15 | 0.0397 (8) | 0.0541 (9) | 0.0403 (8) | 0.0025 (7) | 0.0181 (6) | 0.0028 (7) |
C16 | 0.0604 (11) | 0.0676 (12) | 0.0499 (10) | 0.0043 (9) | 0.0225 (8) | −0.0059 (9) |
C17 | 0.0737 (13) | 0.0998 (17) | 0.0458 (10) | 0.0081 (12) | 0.0249 (9) | −0.0129 (11) |
C18 | 0.0731 (13) | 0.1169 (19) | 0.0388 (9) | 0.0139 (13) | 0.0258 (9) | 0.0106 (11) |
C19 | 0.0648 (11) | 0.0863 (14) | 0.0458 (10) | 0.0096 (10) | 0.0253 (8) | 0.0206 (10) |
C20 | 0.0419 (8) | 0.0604 (10) | 0.0409 (8) | 0.0014 (7) | 0.0195 (6) | 0.0103 (7) |
C21 | 0.0426 (8) | 0.0447 (8) | 0.0450 (8) | −0.0009 (6) | 0.0198 (7) | 0.0064 (7) |
C1—C21 | 1.503 (2) | C9—C14 | 1.387 (2) |
C1—C2 | 1.526 (2) | C10—C11 | 1.381 (3) |
C1—H1A | 0.97 | C10—H10 | 0.93 |
C1—H1B | 0.97 | C11—C12 | 1.377 (3) |
C2—C5 | 1.523 (3) | C11—H11 | 0.93 |
C2—C4 | 1.525 (3) | C12—C13 | 1.375 (3) |
C2—C3 | 1.532 (3) | C12—H12 | 0.93 |
C3—H3A | 0.96 | C13—C14 | 1.381 (2) |
C3—H3B | 0.96 | C13—H13 | 0.93 |
C3—H3C | 0.96 | C14—H14 | 0.93 |
C4—H4A | 0.96 | C15—C16 | 1.416 (2) |
C4—H4B | 0.96 | C15—C20 | 1.417 (2) |
C4—H4C | 0.96 | C16—C17 | 1.364 (3) |
C5—C6 | 1.499 (2) | C16—H16 | 0.93 |
C5—H5A | 0.97 | C17—C18 | 1.399 (3) |
C5—H5B | 0.97 | C17—H17 | 0.93 |
C6—O1 | 1.212 (2) | C18—C19 | 1.357 (3) |
C6—C7 | 1.499 (2) | C18—H18 | 0.93 |
C7—C8 | 1.384 (2) | C19—C20 | 1.415 (2) |
C7—C21 | 1.430 (2) | C19—H19 | 0.93 |
C8—C15 | 1.430 (2) | C20—N1 | 1.362 (2) |
C8—C9 | 1.494 (2) | C21—N1 | 1.320 (2) |
C9—C10 | 1.386 (2) | ||
C21—C1—C2 | 113.98 (14) | C10—C9—C8 | 121.06 (15) |
C21—C1—H1A | 108.8 | C14—C9—C8 | 119.80 (14) |
C2—C1—H1A | 108.8 | C11—C10—C9 | 120.35 (18) |
C21—C1—H1B | 108.8 | C11—C10—H10 | 119.8 |
C2—C1—H1B | 108.8 | C9—C10—H10 | 119.8 |
H1A—C1—H1B | 107.7 | C12—C11—C10 | 120.24 (17) |
C5—C2—C4 | 110.65 (16) | C12—C11—H11 | 119.9 |
C5—C2—C1 | 106.81 (14) | C10—C11—H11 | 119.9 |
C4—C2—C1 | 110.65 (16) | C13—C12—C11 | 119.75 (17) |
C5—C2—C3 | 109.63 (16) | C13—C12—H12 | 120.1 |
C4—C2—C3 | 109.35 (16) | C11—C12—H12 | 120.1 |
C1—C2—C3 | 109.72 (15) | C12—C13—C14 | 120.38 (18) |
C2—C3—H3A | 109.5 | C12—C13—H13 | 119.8 |
C2—C3—H3B | 109.5 | C14—C13—H13 | 119.8 |
H3A—C3—H3B | 109.5 | C13—C14—C9 | 120.24 (16) |
C2—C3—H3C | 109.5 | C13—C14—H14 | 119.9 |
H3A—C3—H3C | 109.5 | C9—C14—H14 | 119.9 |
H3B—C3—H3C | 109.5 | C16—C15—C20 | 118.51 (16) |
C2—C4—H4A | 109.5 | C16—C15—C8 | 123.45 (16) |
C2—C4—H4B | 109.5 | C20—C15—C8 | 118.04 (15) |
H4A—C4—H4B | 109.5 | C17—C16—C15 | 120.7 (2) |
C2—C4—H4C | 109.5 | C17—C16—H16 | 119.7 |
H4A—C4—H4C | 109.5 | C15—C16—H16 | 119.7 |
H4B—C4—H4C | 109.5 | C16—C17—C18 | 120.5 (2) |
C6—C5—C2 | 115.93 (15) | C16—C17—H17 | 119.7 |
C6—C5—H5A | 108.3 | C18—C17—H17 | 119.7 |
C2—C5—H5A | 108.3 | C19—C18—C17 | 120.46 (19) |
C6—C5—H5B | 108.3 | C19—C18—H18 | 119.8 |
C2—C5—H5B | 108.3 | C17—C18—H18 | 119.8 |
H5A—C5—H5B | 107.4 | C18—C19—C20 | 120.8 (2) |
O1—C6—C5 | 119.46 (16) | C18—C19—H19 | 119.6 |
O1—C6—C7 | 122.07 (16) | C20—C19—H19 | 119.6 |
C5—C6—C7 | 118.41 (15) | N1—C20—C19 | 117.99 (17) |
C8—C7—C21 | 119.22 (14) | N1—C20—C15 | 123.00 (14) |
C8—C7—C6 | 122.53 (14) | C19—C20—C15 | 119.00 (17) |
C21—C7—C6 | 118.23 (14) | N1—C21—C7 | 123.40 (15) |
C7—C8—C15 | 118.13 (14) | N1—C21—C1 | 115.98 (14) |
C7—C8—C9 | 123.98 (14) | C7—C21—C1 | 120.62 (14) |
C15—C8—C9 | 117.88 (14) | C21—N1—C20 | 118.11 (14) |
C10—C9—C14 | 119.03 (15) | ||
C21—C1—C2—C5 | −55.2 (2) | C8—C9—C14—C13 | 176.85 (16) |
C21—C1—C2—C4 | 65.3 (2) | C7—C8—C15—C16 | 177.41 (15) |
C21—C1—C2—C3 | −173.95 (17) | C9—C8—C15—C16 | −1.8 (2) |
C4—C2—C5—C6 | −67.6 (2) | C7—C8—C15—C20 | −1.9 (2) |
C1—C2—C5—C6 | 52.9 (2) | C9—C8—C15—C20 | 178.84 (14) |
C3—C2—C5—C6 | 171.73 (16) | C20—C15—C16—C17 | −1.7 (3) |
C2—C5—C6—O1 | 158.93 (18) | C8—C15—C16—C17 | 178.98 (17) |
C2—C5—C6—C7 | −23.8 (2) | C15—C16—C17—C18 | −0.1 (3) |
O1—C6—C7—C8 | −7.4 (3) | C16—C17—C18—C19 | 1.0 (3) |
C5—C6—C7—C8 | 175.35 (16) | C17—C18—C19—C20 | 0.1 (3) |
O1—C6—C7—C21 | 171.17 (18) | C18—C19—C20—N1 | 176.85 (18) |
C5—C6—C7—C21 | −6.1 (2) | C18—C19—C20—C15 | −1.9 (3) |
C21—C7—C8—C15 | −0.8 (2) | C16—C15—C20—N1 | −176.02 (16) |
C6—C7—C8—C15 | 177.79 (14) | C8—C15—C20—N1 | 3.4 (2) |
C21—C7—C8—C9 | 178.40 (14) | C16—C15—C20—C19 | 2.7 (2) |
C6—C7—C8—C9 | −3.0 (2) | C8—C15—C20—C19 | −177.96 (15) |
C7—C8—C9—C10 | −76.1 (2) | C8—C7—C21—N1 | 2.5 (2) |
C15—C8—C9—C10 | 103.06 (18) | C6—C7—C21—N1 | −176.10 (15) |
C7—C8—C9—C14 | 107.68 (19) | C8—C7—C21—C1 | −178.28 (15) |
C15—C8—C9—C14 | −73.2 (2) | C6—C7—C21—C1 | 3.1 (2) |
C14—C9—C10—C11 | 0.3 (3) | C2—C1—C21—N1 | −151.45 (15) |
C8—C9—C10—C11 | −175.97 (17) | C2—C1—C21—C7 | 29.3 (2) |
C9—C10—C11—C12 | −1.0 (3) | C7—C21—N1—C20 | −1.2 (2) |
C10—C11—C12—C13 | 0.9 (3) | C1—C21—N1—C20 | 179.53 (15) |
C11—C12—C13—C14 | −0.1 (3) | C19—C20—N1—C21 | 179.55 (15) |
C12—C13—C14—C9 | −0.7 (3) | C15—C20—N1—C21 | −1.8 (2) |
C10—C9—C14—C13 | 0.6 (3) |
D—H···A | D—H | H···A | D···A | D—H···A |
C11—H11···Cg1i | 0.93 | 3.20 | 3.814 (3) | 126 |
Symmetry code: (i) x+1/2, y+3/2, z. |
Experimental details
Crystal data | |
Chemical formula | C21H19NO |
Mr | 301.37 |
Crystal system, space group | Monoclinic, C2/c |
Temperature (K) | 298 |
a, b, c (Å) | 16.341 (3), 11.3889 (18), 18.772 (4) |
β (°) | 110.386 (14) |
V (Å3) | 3274.8 (10) |
Z | 8 |
Radiation type | Mo Kα |
µ (mm−1) | 0.08 |
Crystal size (mm) | 0.33 × 0.22 × 0.1 |
Data collection | |
Diffractometer | Stoe IPDSII diffractometer |
Absorption correction | Numerical shape of crystal determined optically (X-SHAPE; Stoe & Cie, 2005) |
Tmin, Tmax | 0.980, 0.990 |
No. of measured, independent and observed [I > 2σ(I)] reflections | 11268, 3882, 3032 |
Rint | 0.044 |
(sin θ/λ)max (Å−1) | 0.660 |
Refinement | |
R[F2 > 2σ(F2)], wR(F2), S | 0.061, 0.143, 1.10 |
No. of reflections | 3882 |
No. of parameters | 208 |
H-atom treatment | H-atom parameters constrained |
Δρmax, Δρmin (e Å−3) | 0.24, −0.26 |
Computer programs: X-AREA (Stoe & Cie, 2005), X-RED (Stoe & Cie, 2005), SHELXS97 (Sheldrick, 2008), SHELXL97 (Sheldrick, 2008), ORTEP-3 for Windows (Farrugia, 1997), WinGX (Farrugia, 1999).
D—H···A | D—H | H···A | D···A | D—H···A |
C11—H11···Cg1i | 0.93 | 3.197 | 3.814 (3) | 125.65 |
Symmetry code: (i) x+1/2, y+3/2, z. |
Acknowledgements
I am grateful to the Islamic Azad University, Dorood Branch, for financial support.
References
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Recently, quinolines and their derivatives have received considerable attention, due to their wide range of therapeutic and biological properties. They have emerged as antimalarial, antiasthmatic, anti-inflamatory, antibacterial, anti- hypertensive and tyrosine kinase PDGF-RTK inhibiting agents. Moreover, poly- quinolines are found to undergo hierarchical self-assembly into a variety of nano and meso structures with enhanced electronic and photonic functions (Kalluraya & Sreenivasa, 1998; Doube et al., 1998; Maguire et al., 1994). We report herein the synthesis and crystal structure of the title compound.
In the molecule of the title compound (Fig. 1), the bond lengths (Allen et al., 1987) and angles are within normal ranges. Ring A (C1/C2/C5-C7/C21) adopts envelope conformation, with C2 atom displaced by -0.683 (3) Å from the plane of the other ring atoms. Rings B (N1/C7/C8/C15/C20/C21), C (C15-C20) and D (C9-C14) are, of course, planar and they are oriented at dihedral angles of B/C = 2.61 (3)°, B/D = 74.17 (3)° and C/D = 75.01 (3)°. So, rings B and C are nearly coplanar. The coplanar ring system is oriented with respect to the phenyl ring D at a dihedral angle of 74.58 (3)°.
In the crystal structure, a C—H···π contact (Table 1) between rings B and D and a π—π contact between the symmetry related B rings Cg1···Cg1i [symmetry code: (i) 1/2 - x, 3/2 - y, - z, where Cg1 is the centroid of ring B] may stabilize the structure, with centroid-centroid distance of 3.809 (1) Å.