2,6-Di-tert-butyl-4-{[2-(1-methyl-1H-benzimidazol-2-­yl)phen­yl]imino}cyclo­hexa-2,5-dien-1-one

In the title compound, C₂₈H₃₁N₃O, the benzimidazole group is close to perpendicular to the benzene ring. Mol­ecules form pairs via π–π stacking inter­actions between benzimidazole groups.

Key indicators

• Single-crystal X-ray study
• T = 293 K
• Mean [sigma](C-C) = 0.003 Å
• R factor = 0.044
• wR factor = 0.125
• Data-to-parameter ratio = 14.3

checkCIF/PLATON results

No syntax errors found



Alert level C
PLAT154_ALERT_1_C The su's on the Cell Angles are Equal (x 10000)        3000 Deg.
PLAT230_ALERT_2_C Hirshfeld Test Diff for    C16    -   C17     ..       5.52 su
PLAT242_ALERT_2_C Check Low       Ueq as Compared to Neighbors for        C20
PLAT335_ALERT_2_C Large Benzene C-C Range .......  C1     -C6            0.16 Ang.
PLAT480_ALERT_4_C Long H...A H-Bond Reported H28B   ..  O1      ..       2.76 Ang.
PLAT480_ALERT_4_C Long H...A H-Bond Reported H17    ..  N1      ..       2.96 Ang.
PLAT480_ALERT_4_C Long H...A H-Bond Reported H26B   ..  N2      ..       2.90 Ang.
PLAT481_ALERT_4_C Long D...A H-Bond Reported C17    ..  N1      ..       3.85 Ang.
PLAT481_ALERT_4_C Long D...A H-Bond Reported C26    ..  N2      ..       3.81 Ang.

Alert level G
PLAT199_ALERT_1_G Check the Reported _cell_measurement_temperature        293 K
PLAT200_ALERT_1_G Check the Reported _diffrn_ambient_temperature .        293 K

   0 ALERT level A = In general: serious problem
   0 ALERT level B = Potentially serious problem
   9 ALERT level C = Check and explain
   2 ALERT level G = General alerts; check

   3 ALERT type 1 CIF construction/syntax error, inconsistent or missing data
   3 ALERT type 2 Indicator that the structure model may be wrong or deficient
   0 ALERT type 3 Indicator that the structure quality may be low
   5 ALERT type 4 Improvement, methodology, query or suggestion
   0 ALERT type 5 Informative message, check

---

Computing details

Data collection: CAD-4 (Enraf–Nonius, 1989); cell refinement: CAD-4; data reduction: CAD-4; program(s) used to solve structure: SHELXS97 (Sheldrick, 1997); program(s) used to refine structure: SHELXL97 (Sheldrick, 1997); molecular graphics: SHELXTL (Bruker, 1997); software used to prepare material for publication: SHELXTL.

2,6-Di-tert-butyl-4-{[2-(1-methyl-1H-benzimidazol-2- yl)phenyl]imino}cyclohexa-2,5-dien-1-one

Crystal data

C28H31N3O	Z = 2
Mr = 425.56	F(000) = 456
Triclinic, P1	Dx = 1.170 Mg m^−3
Hall symbol: -P 1	Mo Kα radiation, λ = 0.71073 Å
a = 10.691 (5) Å	Cell parameters from 24 reflections
b = 11.963 (5) Å	θ = 10–11°
c = 12.096 (6) Å	µ = 0.07 mm^−1
α = 96.21 (3)°	T = 293 K
β = 115.51 (3)°	Prism, yellow
γ = 113.25 (3)°	0.50 × 0.40 × 0.30 mm
V = 1208.4 (11) Å^3

Data collection

Enraf–Nonius CAD-4 diffractometer	Rint = 0.027
Radiation source: fine-focus sealed tube	θmax = 25.1°, θmin = 2.3°
Graphite monochromator	h = 0→12
θ/2θ scans	k = −14→13
4487 measured reflections	l = −14→13
4242 independent reflections	2 standard reflections every 98 reflections
2876 reflections with I > 2σ(I)	intensity decay: 3.7%

Refinement

Refinement on F^2	Primary atom site location: structure-invariant direct methods
Least-squares matrix: full	Secondary atom site location: difference Fourier map
R[F^2 > 2σ(F^2)] = 0.044	Hydrogen site location: inferred from neighbouring sites
wR(F^2) = 0.125	H-atom parameters constrained
S = 1.02	w = 1/[σ^2(Fo^2) + (0.0778P)^2] where P = (Fo^2 + 2Fc^2)/3
4242 reflections	(Δ/σ)max < 0.001
296 parameters	Δρmax = 0.16 e Å^−3
3 restraints	Δρmin = −0.19 e Å^−3

Special details

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.

Fractional atomic coordinates and isotropic or equivalent isotropic displacement parameters (Ų)

	x	y	z	Uiso*/Ueq
O1	−0.03326 (14)	−0.04042 (13)	−0.31542 (13)	0.0797 (5)
N1	0.47392 (15)	0.37193 (12)	0.09031 (12)	0.0473 (3)
N2	0.66042 (18)	0.33419 (14)	0.38105 (13)	0.0579 (4)
N3	0.73751 (15)	0.54512 (13)	0.43274 (13)	0.0545 (4)
C1	0.08295 (18)	0.04591 (15)	−0.21627 (15)	0.0472 (4)
C2	0.06385 (17)	0.13289 (14)	−0.13355 (14)	0.0422 (4)
C3	0.19644 (18)	0.23636 (15)	−0.03537 (14)	0.0455 (4)
H3	0.1856	0.2927	0.0144	0.055*
C4	0.35654 (17)	0.26537 (14)	−0.00236 (14)	0.0429 (4)
C5	0.37131 (18)	0.16950 (15)	−0.07327 (14)	0.0451 (4)
H5	0.4724	0.1809	−0.0464	0.054*
C6	0.24603 (17)	0.06602 (14)	−0.17514 (13)	0.0418 (4)
C7	0.63108 (17)	0.41106 (14)	0.11918 (14)	0.0449 (4)
C8	0.6721 (2)	0.42301 (16)	0.02439 (16)	0.0542 (4)
H8	0.5944	0.4032	−0.0610	0.065*
C9	0.8276 (2)	0.46412 (17)	0.05664 (19)	0.0629 (5)
H9	0.8534	0.4692	−0.0076	0.076*
C10	0.9442 (2)	0.49740 (18)	0.18314 (19)	0.0658 (5)
H10	1.0485	0.5242	0.2044	0.079*
C11	0.90624 (19)	0.49093 (17)	0.27836 (17)	0.0578 (5)
H11	0.9860	0.5153	0.3642	0.069*
C12	0.75056 (18)	0.44847 (14)	0.24819 (14)	0.0467 (4)
C13	0.71215 (18)	0.43862 (16)	0.35187 (14)	0.0475 (4)
C14	0.6491 (2)	0.37265 (18)	0.48740 (16)	0.0580 (5)
C15	0.5988 (3)	0.3016 (2)	0.55784 (19)	0.0746 (6)
H15	0.5658	0.2138	0.5362	0.090*
C16	0.5989 (3)	0.3634 (3)	0.6594 (2)	0.0853 (7)
H16	0.5667	0.3171	0.7081	0.102*
C17	0.6458 (2)	0.4934 (3)	0.69134 (19)	0.0850 (7)
H17	0.6429	0.5322	0.7605	0.102*
C18	0.6966 (2)	0.5675 (2)	0.62441 (18)	0.0750 (6)
H18	0.7288	0.6551	0.6469	0.090*
C19	0.69724 (19)	0.50397 (18)	0.52088 (15)	0.0559 (4)
C20	−0.10417 (18)	0.10083 (16)	−0.16569 (15)	0.0489 (4)
C21	−0.1942 (2)	0.1146 (2)	−0.29663 (18)	0.0716 (5)
H21A	−0.1345	0.2000	−0.2950	0.107*
H21B	−0.2964	0.1003	−0.3129	0.107*
H21C	−0.2083	0.0523	−0.3642	0.107*
C22	−0.1964 (2)	−0.0374 (2)	−0.1711 (2)	0.0781 (6)
H22A	−0.1375	−0.0479	−0.0907	0.117*
H22B	−0.2114	−0.0971	−0.2415	0.117*
H22C	−0.2983	−0.0537	−0.1847	0.117*
C23	−0.0969 (2)	0.1928 (2)	−0.0623 (2)	0.0823 (7)
H23A	−0.0400	0.1862	0.0211	0.124*
H23B	−0.2031	0.1703	−0.0831	0.124*
H23C	−0.0432	0.2798	−0.0601	0.124*
C24	0.26268 (19)	−0.03328 (15)	−0.25001 (15)	0.0495 (4)
C25	0.1993 (3)	−0.03611 (19)	−0.39126 (17)	0.0711 (5)
H25A	0.2588	0.0478	−0.3927	0.107*
H25B	0.0890	−0.0595	−0.4318	0.107*
H25C	0.2104	−0.0984	−0.4377	0.107*
C26	0.1739 (2)	−0.16689 (17)	−0.2444 (2)	0.0682 (5)
H26A	0.2204	−0.1645	−0.1557	0.102*
H26B	0.1818	−0.2289	−0.2946	0.102*
H26C	0.0640	−0.1911	−0.2794	0.102*
C27	0.4368 (2)	0.0009 (2)	−0.19328 (19)	0.0751 (6)
H27A	0.4809	0.0012	−0.1052	0.113*
H27B	0.4961	0.0848	−0.1948	0.113*
H27C	0.4428	−0.0620	−0.2443	0.113*
C28	0.7840 (3)	0.67167 (18)	0.4190 (2)	0.0816 (6)
H28A	0.8882	0.7073	0.4303	0.122*
H28B	0.7857	0.7273	0.4837	0.122*
H28C	0.7091	0.6642	0.3340	0.122*

Atomic displacement parameters (Ų)

	U^11	U^22	U^33	U^12	U^13	U^23
O1	0.0448 (7)	0.0809 (9)	0.0732 (8)	0.0281 (7)	0.0125 (6)	−0.0200 (7)
N1	0.0414 (7)	0.0514 (8)	0.0432 (7)	0.0237 (6)	0.0189 (6)	0.0056 (6)
N2	0.0696 (10)	0.0595 (9)	0.0554 (8)	0.0389 (8)	0.0349 (7)	0.0165 (7)
N3	0.0449 (8)	0.0491 (8)	0.0526 (8)	0.0227 (6)	0.0169 (7)	−0.0019 (6)
C1	0.0415 (9)	0.0509 (9)	0.0452 (9)	0.0248 (8)	0.0191 (8)	0.0091 (7)
C2	0.0414 (9)	0.0515 (9)	0.0421 (8)	0.0277 (8)	0.0234 (7)	0.0177 (7)
C3	0.0456 (9)	0.0530 (9)	0.0451 (8)	0.0290 (8)	0.0261 (7)	0.0109 (7)
C4	0.0409 (8)	0.0499 (9)	0.0380 (8)	0.0245 (7)	0.0194 (7)	0.0106 (7)
C5	0.0400 (9)	0.0517 (9)	0.0455 (8)	0.0253 (7)	0.0225 (7)	0.0108 (7)
C6	0.0422 (9)	0.0474 (9)	0.0409 (8)	0.0251 (7)	0.0233 (7)	0.0127 (7)
C7	0.0411 (9)	0.0400 (8)	0.0493 (9)	0.0204 (7)	0.0217 (7)	0.0055 (7)
C8	0.0485 (10)	0.0560 (10)	0.0509 (9)	0.0219 (8)	0.0251 (8)	0.0116 (8)
C9	0.0623 (12)	0.0612 (11)	0.0724 (12)	0.0256 (9)	0.0450 (10)	0.0209 (9)
C10	0.0457 (10)	0.0670 (12)	0.0838 (14)	0.0248 (9)	0.0360 (10)	0.0229 (10)
C11	0.0400 (9)	0.0585 (10)	0.0598 (10)	0.0214 (8)	0.0184 (8)	0.0123 (8)
C12	0.0452 (9)	0.0390 (8)	0.0477 (9)	0.0207 (7)	0.0196 (7)	0.0061 (7)
C13	0.0406 (9)	0.0491 (9)	0.0417 (8)	0.0239 (7)	0.0137 (7)	0.0034 (7)
C14	0.0555 (11)	0.0755 (12)	0.0461 (9)	0.0410 (9)	0.0222 (8)	0.0142 (9)
C15	0.0790 (14)	0.0957 (15)	0.0647 (12)	0.0526 (12)	0.0392 (11)	0.0326 (11)
C16	0.0817 (15)	0.130 (2)	0.0574 (12)	0.0613 (15)	0.0381 (11)	0.0308 (12)
C17	0.0624 (13)	0.135 (2)	0.0447 (11)	0.0491 (14)	0.0233 (10)	0.0045 (12)
C18	0.0562 (11)	0.0888 (14)	0.0565 (11)	0.0362 (10)	0.0179 (9)	−0.0089 (10)
C19	0.0408 (9)	0.0726 (12)	0.0407 (8)	0.0304 (8)	0.0126 (7)	0.0007 (8)
C20	0.0405 (9)	0.0603 (10)	0.0522 (9)	0.0277 (8)	0.0261 (7)	0.0189 (8)
C21	0.0591 (12)	0.0973 (15)	0.0753 (13)	0.0513 (11)	0.0334 (10)	0.0419 (11)
C22	0.0520 (11)	0.0831 (14)	0.1016 (16)	0.0305 (10)	0.0407 (11)	0.0459 (12)
C23	0.0528 (11)	0.1053 (16)	0.0862 (14)	0.0363 (11)	0.0425 (11)	0.0047 (12)
C24	0.0507 (9)	0.0503 (9)	0.0519 (9)	0.0271 (8)	0.0298 (8)	0.0090 (7)
C25	0.0855 (14)	0.0717 (12)	0.0551 (10)	0.0356 (11)	0.0408 (10)	0.0113 (9)
C26	0.0837 (14)	0.0579 (11)	0.0787 (13)	0.0411 (10)	0.0491 (11)	0.0207 (9)
C27	0.0608 (12)	0.0881 (14)	0.0772 (13)	0.0441 (11)	0.0361 (10)	0.0000 (11)
C28	0.0774 (14)	0.0490 (11)	0.0985 (15)	0.0245 (10)	0.0416 (12)	0.0012 (10)

Geometric parameters (Å, º)

O1—C1	1.218 (2)	C16—C17	1.381 (3)
N1—C4	1.293 (2)	C16—H16	0.930
N1—C7	1.415 (2)	C17—C18	1.375 (3)
N2—C13	1.307 (2)	C17—H17	0.930
N2—C14	1.390 (2)	C18—C19	1.397 (2)
N3—C13	1.372 (2)	C18—H18	0.930
N3—C19	1.380 (2)	C20—C21	1.527 (3)
N3—C28	1.448 (3)	C20—C23	1.527 (3)
C1—C6	1.497 (2)	C20—C22	1.531 (3)
C1—C2	1.498 (2)	C21—H21A	0.960
C2—C3	1.341 (2)	C21—H21B	0.960
C2—C20	1.532 (2)	C21—H21C	0.960
C3—C4	1.457 (2)	C22—H22A	0.960
C3—H3	0.930	C22—H22B	0.960
C4—C5	1.457 (2)	C22—H22C	0.960
C5—C6	1.336 (2)	C23—H23A	0.960
C5—H5	0.930	C23—H23B	0.960
C6—C24	1.528 (2)	C23—H23C	0.960
C7—C8	1.395 (2)	C24—C26	1.530 (3)
C7—C12	1.395 (2)	C24—C27	1.531 (3)
C8—C9	1.383 (3)	C24—C25	1.533 (3)
C8—H8	0.930	C25—H25A	0.960
C9—C10	1.373 (3)	C25—H25B	0.960
C9—H9	0.930	C25—H25C	0.960
C10—C11	1.376 (3)	C26—H26A	0.960
C10—H10	0.930	C26—H26B	0.960
C11—C12	1.389 (2)	C26—H26C	0.960
C11—H11	0.930	C27—H27A	0.960
C12—C13	1.481 (2)	C27—H27B	0.960
C14—C15	1.389 (3)	C27—H27C	0.960
C14—C19	1.393 (3)	C28—H28A	0.960
C15—C16	1.363 (3)	C28—H28B	0.960
C15—H15	0.930	C28—H28C	0.960
C4—N1—C7	119.98 (13)	C19—C18—H18	121.8
C13—N2—C14	104.93 (15)	N3—C19—C14	105.60 (14)
C13—N3—C19	106.25 (15)	N3—C19—C18	132.63 (19)
C13—N3—C28	125.77 (16)	C14—C19—C18	121.76 (19)
C19—N3—C28	127.78 (15)	C21—C20—C23	108.05 (16)
O1—C1—C6	120.62 (14)	C21—C20—C22	109.12 (16)
O1—C1—C2	120.17 (15)	C23—C20—C22	108.31 (16)
C6—C1—C2	119.21 (14)	C21—C20—C2	110.19 (14)
C3—C2—C1	117.59 (14)	C23—C20—C2	110.61 (14)
C3—C2—C20	123.45 (14)	C22—C20—C2	110.50 (14)
C1—C2—C20	118.95 (14)	C20—C21—H21A	109.5
C2—C3—C4	123.63 (14)	C20—C21—H21B	109.5
C2—C3—H3	118.2	H21A—C21—H21B	109.5
C4—C3—H3	118.2	C20—C21—H21C	109.5
N1—C4—C3	117.34 (14)	H21A—C21—H21C	109.5
N1—C4—C5	125.42 (14)	H21B—C21—H21C	109.5
C3—C4—C5	117.20 (14)	C20—C22—H22A	109.5
C6—C5—C4	122.91 (14)	C20—C22—H22B	109.5
C6—C5—H5	118.5	H22A—C22—H22B	109.5
C4—C5—H5	118.5	C20—C22—H22C	109.5
C5—C6—C1	118.55 (14)	H22A—C22—H22C	109.5
C5—C6—C24	122.59 (14)	H22B—C22—H22C	109.5
C1—C6—C24	118.85 (14)	C20—C23—H23A	109.5
C8—C7—C12	119.12 (15)	C20—C23—H23B	109.5
C8—C7—N1	121.92 (14)	H23A—C23—H23B	109.5
C12—C7—N1	118.77 (14)	C20—C23—H23C	109.5
C9—C8—C7	120.36 (16)	H23A—C23—H23C	109.5
C9—C8—H8	119.8	H23B—C23—H23C	109.5
C7—C8—H8	119.8	C6—C24—C26	110.35 (13)
C10—C9—C8	120.29 (17)	C6—C24—C27	111.87 (14)
C10—C9—H9	119.9	C26—C24—C27	107.47 (16)
C8—C9—H9	119.9	C6—C24—C25	109.84 (14)
C9—C10—C11	119.82 (17)	C26—C24—C25	110.78 (15)
C9—C10—H10	120.1	C27—C24—C25	106.46 (15)
C11—C10—H10	120.1	C24—C25—H25A	109.5
C10—C11—C12	120.98 (17)	C24—C25—H25B	109.5
C10—C11—H11	119.5	H25A—C25—H25B	109.5
C12—C11—H11	119.5	C24—C25—H25C	109.5
C11—C12—C7	119.33 (15)	H25A—C25—H25C	109.5
C11—C12—C13	119.87 (14)	H25B—C25—H25C	109.5
C7—C12—C13	120.76 (14)	C24—C26—H26A	109.5
N2—C13—N3	113.29 (15)	C24—C26—H26B	109.5
N2—C13—C12	125.49 (14)	H26A—C26—H26B	109.5
N3—C13—C12	121.13 (15)	C24—C26—H26C	109.5
C15—C14—N2	130.19 (18)	H26A—C26—H26C	109.5
C15—C14—C19	119.88 (17)	H26B—C26—H26C	109.5
N2—C14—C19	109.93 (17)	C24—C27—H27A	109.5
C16—C15—C14	118.5 (2)	C24—C27—H27B	109.5
C16—C15—H15	120.7	H27A—C27—H27B	109.5
C14—C15—H15	120.7	C24—C27—H27C	109.5
C15—C16—C17	121.2 (2)	H27A—C27—H27C	109.5
C15—C16—H16	119.4	H27B—C27—H27C	109.5
C17—C16—H16	119.4	N3—C28—H28A	109.5
C18—C17—C16	122.2 (2)	N3—C28—H28B	109.5
C18—C17—H17	118.9	H28A—C28—H28B	109.5
C16—C17—H17	118.9	N3—C28—H28C	109.5
C17—C18—C19	116.4 (2)	H28A—C28—H28C	109.5
C17—C18—H18	121.8	H28B—C28—H28C	109.5
O1—C1—C2—C3	−171.37 (16)	C19—N3—C13—C12	−177.06 (13)
C6—C1—C2—C3	9.0 (2)	C28—N3—C13—C12	7.7 (2)
O1—C1—C2—C20	7.9 (2)	C11—C12—C13—N2	−94.7 (2)
C6—C1—C2—C20	−171.76 (13)	C7—C12—C13—N2	82.9 (2)
C1—C2—C3—C4	−2.4 (2)	C11—C12—C13—N3	81.6 (2)
C20—C2—C3—C4	178.33 (14)	C7—C12—C13—N3	−100.77 (18)
C7—N1—C4—C3	−174.42 (13)	C13—N2—C14—C15	179.09 (18)
C7—N1—C4—C5	8.0 (2)	C13—N2—C14—C19	−0.47 (18)
C2—C3—C4—N1	176.42 (15)	N2—C14—C15—C16	−179.91 (18)
C2—C3—C4—C5	−5.8 (2)	C19—C14—C15—C16	−0.4 (3)
N1—C4—C5—C6	−174.47 (15)	C14—C15—C16—C17	0.8 (3)
C3—C4—C5—C6	8.0 (2)	C15—C16—C17—C18	−0.9 (3)
C4—C5—C6—C1	−1.6 (2)	C16—C17—C18—C19	0.5 (3)
C4—C5—C6—C24	179.25 (14)	C13—N3—C19—C14	0.01 (16)
O1—C1—C6—C5	173.31 (16)	C28—N3—C19—C14	175.09 (16)
C2—C1—C6—C5	−7.0 (2)	C13—N3—C19—C18	−179.23 (17)
O1—C1—C6—C24	−7.5 (2)	C28—N3—C19—C18	−4.1 (3)
C2—C1—C6—C24	172.18 (13)	C15—C14—C19—N3	−179.33 (15)
C4—N1—C7—C8	54.4 (2)	N2—C14—C19—N3	0.28 (18)
C4—N1—C7—C12	−130.75 (16)	C15—C14—C19—C18	0.0 (3)
C12—C7—C8—C9	3.8 (2)	N2—C14—C19—C18	179.62 (15)
N1—C7—C8—C9	178.64 (15)	C17—C18—C19—N3	179.08 (17)
C7—C8—C9—C10	−2.0 (3)	C17—C18—C19—C14	−0.1 (3)
C8—C9—C10—C11	−0.6 (3)	C3—C2—C20—C21	112.88 (18)
C9—C10—C11—C12	1.4 (3)	C1—C2—C20—C21	−66.33 (19)
C10—C11—C12—C7	0.5 (2)	C3—C2—C20—C23	−6.5 (2)
C10—C11—C12—C13	178.12 (16)	C1—C2—C20—C23	174.26 (15)
C8—C7—C12—C11	−3.0 (2)	C3—C2—C20—C22	−126.46 (18)
N1—C7—C12—C11	−178.01 (14)	C1—C2—C20—C22	54.33 (19)
C8—C7—C12—C13	179.33 (14)	C5—C6—C24—C26	119.95 (18)
N1—C7—C12—C13	4.3 (2)	C1—C6—C24—C26	−59.24 (19)
C14—N2—C13—N3	0.49 (18)	C5—C6—C24—C27	0.4 (2)
C14—N2—C13—C12	177.06 (14)	C1—C6—C24—C27	−178.83 (15)
C19—N3—C13—N2	−0.33 (18)	C5—C6—C24—C25	−117.63 (18)
C28—N3—C13—N2	−175.54 (16)	C1—C6—C24—C25	63.18 (19)

Hydrogen-bond geometry (Å, º)

D—H···A	D—H	H···A	D···A	D—H···A
C28—H28B···O1^i	0.96	2.76	3.590 (3)	145
C17—H17···N1^ii	0.93	2.96	3.851 (3)	161
C26—H26B···N2^iii	0.96	2.90	3.805 (3)	157

Symmetry codes: (i) x+1, y+1, z+1; (ii) −x+1, −y+1, −z+1; (iii) −x+1, −y, −z.