(2E)-1-(4,4''-Difluoro-5'-meth-oxy-1,1':3',1''-terphenyl-4'-yl)-3-(2,6-difluoro-phen-yl)prop-2-en-1-one.

In the title compound, C(28)H(18)F(4)O(2), the central benzene ring makes dihedral angles of 44.27 (6), 56.33 (5) and 77.27 (6)° with the two adjacent fluoro-benzene rings and terminal difluoro-substituted benzene ring, respectively. The dihedral angle between the fluoro-benzene rings is 87.81 (6)°. The meth-oxy and prop-2-en-1-one groups are essentially coplanar with their attached benzene rings, as indicated by their C-O-C(ar)-C(ar) [-0.06 (15)°] and C-C-C(ar)-C(ar) [4.5 (2)°] (ar = aromatic) torsion angles. In the crystal, mol-ecules are linked by C-H⋯F and C-H⋯O hydrogen bonds into sheets lying parallel to the ac plane. The crystal structure also features C-H⋯π inter-actions.

Related literature

For related structures and background to terphenyl chalcones, see: Fun et al. (2011 ▶, 2012 ▶). For the stability of the temperature controller used in the data collection, see: Cosier & Glazer (1986 ▶). For bond-length data, see: Allen et al. (1987 ▶).

Experimental

Crystal data

C28H18F4O2

M = 462.42

Triclinic,

a = 8.9624 (5) Å

b = 10.2127 (6) Å

c = 13.3281 (7) Å

α = 67.780 (1)°

β = 86.776 (1)°

γ = 85.293 (1)°

V = 1125.10 (11) Å3

Z = 2

Mo Kα radiation

μ = 0.11 mm−1

T = 100 K

0.25 × 0.20 × 0.11 mm

Data collection

Bruker APEX Duo CCD diffractometer

Absorption correction: multi-scan (SADABS; Bruker, 2009 ▶) T min = 0.974, T max = 0.989

28220 measured reflections

8063 independent reflections

6097 reflections with I > 2σ(I)

R int = 0.035

Refinement

R[F 2 > 2σ(F 2)] = 0.046

wR(F 2) = 0.144

S = 1.02

8063 reflections

308 parameters

H-atom parameters constrained

Δρmax = 0.40 e Å−3

Δρmin = −0.35 e Å−3

Data collection: APEX2 (Bruker, 2009 ▶); cell refinement: SAINT (Bruker, 2009 ▶); data reduction: SAINT; program(s) used to solve structure: SHELXTL (Sheldrick, 2008 ▶); program(s) used to refine structure: SHELXTL; molecular graphics: SHELXTL; software used to prepare material for publication: SHELXTL and PLATON (Spek, 2009 ▶).

Crystal structure: contains datablock(s) global, I. DOI: 10.1107/S160053681201820X/hb6753sup1.cif

Structure factors: contains datablock(s) I. DOI: 10.1107/S160053681201820X/hb6753Isup2.hkl

Supplementary material file. DOI: 10.1107/S160053681201820X/hb6753Isup3.cml

Additional supplementary materials: crystallographic information; 3D view; checkCIF report

C28H18F4O2	Z = 2
Mr = 462.42	F(000) = 476
Triclinic, P1	Dx = 1.365 Mg m−3
Hall symbol: -P 1	Mo Kα radiation, λ = 0.71073 Å
a = 8.9624 (5) Å	Cell parameters from 7563 reflections
b = 10.2127 (6) Å	θ = 2.3–32.4°
c = 13.3281 (7) Å	µ = 0.11 mm−1
α = 67.780 (1)°	T = 100 K
β = 86.776 (1)°	Block, colourless
γ = 85.293 (1)°	0.25 × 0.20 × 0.11 mm
V = 1125.10 (11) Å3

Bruker APEX Duo CCD diffractometer	8063 independent reflections
Radiation source: fine-focus sealed tube	6097 reflections with I > 2σ(I)
Graphite monochromator	Rint = 0.035
φ and ω scans	θmax = 32.5°, θmin = 1.7°
Absorption correction: multi-scan (SADABS; Bruker, 2009)	h = −13→13
Tmin = 0.974, Tmax = 0.989	k = −15→14
28220 measured reflections	l = −20→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)] = 0.046	Hydrogen site location: inferred from neighbouring sites
wR(F2) = 0.144	H-atom parameters constrained
S = 1.02	w = 1/[σ2(Fo2) + (0.0774P)2 + 0.2553P] where P = (Fo2 + 2Fc2)/3
8063 reflections	(Δ/σ)max < 0.001
308 parameters	Δρmax = 0.40 e Å−3
0 restraints	Δρmin = −0.35 e Å−3

Experimental. The crystal was placed in the cold stream of an Oxford Cryosystems Cobra open-flow nitrogen cryostat (Cosier & Glazer, 1986) operating at 100.0 (1) K.

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
F1	0.17366 (10)	0.87097 (10)	−0.57879 (6)	0.03431 (19)
F2	0.40523 (9)	0.37977 (9)	0.20352 (6)	0.03302 (19)
F3	0.15771 (9)	0.45771 (9)	0.49909 (6)	0.03172 (19)
F4	0.54429 (8)	0.99409 (9)	0.24888 (6)	0.02763 (17)
O1	−0.18938 (9)	0.62125 (9)	0.08627 (7)	0.02127 (17)
O2	−0.12638 (9)	0.79463 (9)	0.21502 (7)	0.02271 (17)
C1	0.09479 (14)	0.69493 (13)	−0.29224 (10)	0.0227 (2)
H1A	0.0711	0.6060	−0.2430	0.027*
C2	0.11646 (14)	0.71665 (14)	−0.40139 (10)	0.0261 (2)
H2A	0.1074	0.6437	−0.4259	0.031*
C3	0.15174 (13)	0.84918 (14)	−0.47200 (9)	0.0240 (2)
C4	0.16684 (13)	0.96077 (13)	−0.43948 (9)	0.0221 (2)
H4A	0.1912	1.0490	−0.4895	0.027*
C5	0.14462 (12)	0.93777 (12)	−0.32982 (9)	0.0187 (2)
H5A	0.1542	1.0113	−0.3061	0.022*
C6	0.10798 (12)	0.80452 (11)	−0.25527 (8)	0.01738 (19)
C7	0.08139 (12)	0.78028 (11)	−0.13880 (9)	0.01654 (19)
C8	0.17578 (12)	0.83272 (11)	−0.08525 (8)	0.01669 (19)
H8A	0.2581	0.8809	−0.1224	0.020*
C9	0.14842 (11)	0.81386 (11)	0.02356 (8)	0.01554 (18)
C10	0.02237 (11)	0.74476 (11)	0.07864 (8)	0.01598 (19)
C11	−0.07150 (11)	0.68975 (11)	0.02521 (9)	0.01676 (19)
C12	−0.04140 (12)	0.70569 (11)	−0.08225 (9)	0.01702 (19)
H12A	−0.1025	0.6670	−0.1165	0.020*
C13	−0.01691 (11)	0.72807 (11)	0.19450 (9)	0.01693 (19)
C14	0.07608 (12)	0.62893 (12)	0.28288 (9)	0.0188 (2)
H14A	0.0601	0.6290	0.3524	0.023*
C15	0.18306 (12)	0.53861 (11)	0.26616 (9)	0.0178 (2)
H15A	0.2000	0.5474	0.1945	0.021*
C16	0.27629 (12)	0.42826 (12)	0.34593 (9)	0.0182 (2)
C17	0.26488 (13)	0.38889 (13)	0.45849 (9)	0.0218 (2)
C18	0.35385 (14)	0.28272 (14)	0.53126 (10)	0.0256 (2)
H18A	0.3412	0.2608	0.6054	0.031*
C19	0.46305 (14)	0.20924 (14)	0.49095 (10)	0.0279 (3)
H19A	0.5247	0.1377	0.5386	0.033*
C20	0.48077 (14)	0.24180 (14)	0.38016 (10)	0.0275 (3)
H20A	0.5533	0.1927	0.3528	0.033*
C21	0.38792 (13)	0.34881 (13)	0.31183 (9)	0.0221 (2)
C22	0.25400 (11)	0.86676 (11)	0.07971 (8)	0.01586 (19)
C23	0.40626 (12)	0.82182 (12)	0.08352 (9)	0.0199 (2)
H23A	0.4414	0.7629	0.0474	0.024*
C24	0.50582 (12)	0.86360 (13)	0.14022 (9)	0.0224 (2)
H24A	0.6066	0.8328	0.1435	0.027*
C25	0.44924 (12)	0.95271 (12)	0.19155 (9)	0.0201 (2)
C26	0.30110 (13)	1.00312 (12)	0.18763 (9)	0.0202 (2)
H26A	0.2678	1.0650	0.2217	0.024*
C27	0.20311 (12)	0.95877 (11)	0.13136 (9)	0.0182 (2)
H27A	0.1026	0.9908	0.1281	0.022*
C28	−0.28775 (13)	0.56257 (13)	0.03620 (10)	0.0231 (2)
H28A	−0.3641	0.5157	0.0877	0.035*
H28B	−0.2319	0.4955	0.0117	0.035*
H28C	−0.3334	0.6371	−0.0245	0.035*

	U11	U22	U33	U12	U13	U23
F1	0.0361 (4)	0.0511 (5)	0.0166 (3)	−0.0008 (4)	0.0005 (3)	−0.0142 (3)
F2	0.0317 (4)	0.0454 (5)	0.0188 (3)	0.0145 (3)	−0.0004 (3)	−0.0119 (3)
F3	0.0370 (4)	0.0357 (4)	0.0187 (3)	0.0152 (3)	0.0003 (3)	−0.0097 (3)
F4	0.0223 (3)	0.0393 (4)	0.0230 (3)	−0.0097 (3)	−0.0061 (3)	−0.0114 (3)
O1	0.0178 (4)	0.0265 (4)	0.0193 (4)	−0.0074 (3)	0.0010 (3)	−0.0073 (3)
O2	0.0168 (4)	0.0280 (4)	0.0234 (4)	0.0035 (3)	−0.0005 (3)	−0.0108 (3)
C1	0.0253 (5)	0.0232 (5)	0.0213 (5)	−0.0032 (4)	−0.0009 (4)	−0.0099 (4)
C2	0.0286 (6)	0.0317 (6)	0.0230 (5)	−0.0022 (5)	−0.0014 (4)	−0.0160 (5)
C3	0.0204 (5)	0.0365 (6)	0.0152 (5)	0.0014 (4)	−0.0014 (4)	−0.0105 (4)
C4	0.0188 (5)	0.0264 (5)	0.0177 (5)	0.0002 (4)	−0.0017 (4)	−0.0046 (4)
C5	0.0164 (4)	0.0209 (5)	0.0180 (5)	−0.0001 (4)	−0.0020 (4)	−0.0064 (4)
C6	0.0151 (4)	0.0207 (5)	0.0164 (4)	−0.0002 (3)	−0.0016 (3)	−0.0070 (4)
C7	0.0160 (4)	0.0169 (4)	0.0166 (4)	0.0005 (3)	−0.0018 (3)	−0.0063 (4)
C8	0.0144 (4)	0.0188 (4)	0.0165 (4)	−0.0007 (3)	−0.0003 (3)	−0.0063 (4)
C9	0.0125 (4)	0.0172 (4)	0.0167 (4)	0.0013 (3)	−0.0018 (3)	−0.0063 (4)
C10	0.0141 (4)	0.0173 (4)	0.0156 (4)	0.0011 (3)	−0.0019 (3)	−0.0054 (4)
C11	0.0145 (4)	0.0170 (4)	0.0173 (4)	−0.0007 (3)	−0.0008 (3)	−0.0048 (4)
C12	0.0160 (4)	0.0179 (4)	0.0174 (4)	−0.0012 (3)	−0.0023 (3)	−0.0067 (4)
C13	0.0145 (4)	0.0187 (4)	0.0178 (5)	−0.0014 (3)	−0.0007 (3)	−0.0070 (4)
C14	0.0175 (5)	0.0228 (5)	0.0156 (4)	0.0006 (4)	−0.0010 (4)	−0.0070 (4)
C15	0.0167 (4)	0.0201 (5)	0.0157 (4)	−0.0007 (4)	−0.0011 (3)	−0.0056 (4)
C16	0.0161 (4)	0.0210 (5)	0.0169 (5)	0.0000 (4)	−0.0010 (4)	−0.0067 (4)
C17	0.0215 (5)	0.0239 (5)	0.0191 (5)	0.0035 (4)	−0.0005 (4)	−0.0081 (4)
C18	0.0260 (6)	0.0292 (6)	0.0180 (5)	0.0046 (4)	−0.0031 (4)	−0.0058 (4)
C19	0.0242 (6)	0.0306 (6)	0.0235 (6)	0.0067 (5)	−0.0042 (4)	−0.0053 (5)
C20	0.0220 (5)	0.0328 (6)	0.0239 (6)	0.0095 (5)	−0.0010 (4)	−0.0086 (5)
C21	0.0190 (5)	0.0283 (5)	0.0173 (5)	0.0034 (4)	−0.0003 (4)	−0.0079 (4)
C22	0.0130 (4)	0.0187 (4)	0.0149 (4)	−0.0010 (3)	−0.0015 (3)	−0.0050 (4)
C23	0.0145 (4)	0.0244 (5)	0.0213 (5)	0.0008 (4)	−0.0011 (4)	−0.0094 (4)
C24	0.0130 (4)	0.0305 (6)	0.0222 (5)	−0.0002 (4)	−0.0033 (4)	−0.0082 (4)
C25	0.0180 (5)	0.0254 (5)	0.0158 (4)	−0.0059 (4)	−0.0043 (4)	−0.0050 (4)
C26	0.0206 (5)	0.0220 (5)	0.0192 (5)	−0.0026 (4)	−0.0009 (4)	−0.0087 (4)
C27	0.0147 (4)	0.0203 (5)	0.0194 (5)	0.0008 (3)	−0.0024 (3)	−0.0072 (4)
C28	0.0171 (5)	0.0268 (5)	0.0276 (6)	−0.0058 (4)	−0.0004 (4)	−0.0117 (5)

F1—C3	1.3602 (13)	C13—C14	1.4756 (15)
F2—C21	1.3585 (13)	C14—C15	1.3440 (15)
F3—C17	1.3519 (13)	C14—H14A	0.9300
F4—C25	1.3656 (13)	C15—C16	1.4621 (15)
O1—C11	1.3645 (13)	C15—H15A	0.9300
O1—C28	1.4274 (14)	C16—C17	1.3985 (15)
O2—C13	1.2249 (13)	C16—C21	1.4002 (15)
C1—C2	1.3908 (16)	C17—C18	1.3791 (16)
C1—C6	1.3981 (16)	C18—C19	1.3910 (17)
C1—H1A	0.9300	C18—H18A	0.9300
C2—C3	1.3751 (18)	C19—C20	1.3882 (17)
C2—H2A	0.9300	C19—H19A	0.9300
C3—C4	1.3823 (18)	C20—C21	1.3782 (16)
C4—C5	1.3951 (15)	C20—H20A	0.9300
C4—H4A	0.9300	C22—C27	1.3958 (15)
C5—C6	1.4003 (15)	C22—C23	1.4010 (14)
C5—H5A	0.9300	C23—C24	1.3897 (16)
C6—C7	1.4850 (15)	C23—H23A	0.9300
C7—C8	1.3939 (15)	C24—C25	1.3819 (17)
C7—C12	1.4034 (15)	C24—H24A	0.9300
C8—C9	1.3990 (14)	C25—C26	1.3805 (16)
C8—H8A	0.9300	C26—C27	1.3912 (15)
C9—C10	1.3996 (14)	C26—H26A	0.9300
C9—C22	1.4888 (15)	C27—H27A	0.9300
C10—C11	1.4064 (15)	C28—H28A	0.9600
C10—C13	1.5123 (14)	C28—H28B	0.9600
C11—C12	1.3921 (15)	C28—H28C	0.9600
C12—H12A	0.9300
C11—O1—C28	117.58 (9)	C14—C15—H15A	115.8
C2—C1—C6	121.10 (11)	C16—C15—H15A	115.8
C2—C1—H1A	119.5	C17—C16—C21	113.73 (10)
C6—C1—H1A	119.5	C17—C16—C15	126.22 (10)
C3—C2—C1	118.01 (11)	C21—C16—C15	120.04 (10)
C3—C2—H2A	121.0	F3—C17—C18	117.61 (10)
C1—C2—H2A	121.0	F3—C17—C16	117.92 (10)
F1—C3—C2	118.31 (11)	C18—C17—C16	124.46 (10)
F1—C3—C4	118.56 (11)	C17—C18—C19	118.36 (11)
C2—C3—C4	123.13 (11)	C17—C18—H18A	120.8
C3—C4—C5	118.34 (11)	C19—C18—H18A	120.8
C3—C4—H4A	120.8	C20—C19—C18	120.55 (11)
C5—C4—H4A	120.8	C20—C19—H19A	119.7
C4—C5—C6	120.35 (11)	C18—C19—H19A	119.7
C4—C5—H5A	119.8	C21—C20—C19	118.19 (11)
C6—C5—H5A	119.8	C21—C20—H20A	120.9
C1—C6—C5	119.07 (10)	C19—C20—H20A	120.9
C1—C6—C7	120.38 (10)	F2—C21—C20	117.95 (10)
C5—C6—C7	120.55 (10)	F2—C21—C16	117.34 (10)
C8—C7—C12	119.51 (10)	C20—C21—C16	124.70 (11)
C8—C7—C6	120.74 (9)	C27—C22—C23	118.94 (10)
C12—C7—C6	119.75 (10)	C27—C22—C9	120.92 (9)
C7—C8—C9	120.89 (10)	C23—C22—C9	120.12 (9)
C7—C8—H8A	119.6	C24—C23—C22	121.32 (10)
C9—C8—H8A	119.6	C24—C23—H23A	119.3
C8—C9—C10	119.59 (10)	C22—C23—H23A	119.3
C8—C9—C22	119.71 (9)	C25—C24—C23	117.43 (10)
C10—C9—C22	120.71 (9)	C25—C24—H24A	121.3
C9—C10—C11	119.51 (9)	C23—C24—H24A	121.3
C9—C10—C13	121.81 (9)	F4—C25—C26	117.91 (10)
C11—C10—C13	118.68 (9)	F4—C25—C24	118.65 (10)
O1—C11—C12	124.20 (10)	C26—C25—C24	123.44 (11)
O1—C11—C10	115.25 (9)	C25—C26—C27	118.14 (10)
C12—C11—C10	120.55 (10)	C25—C26—H26A	120.9
C11—C12—C7	119.86 (10)	C27—C26—H26A	120.9
C11—C12—H12A	120.1	C26—C27—C22	120.70 (10)
C7—C12—H12A	120.1	C26—C27—H27A	119.7
O2—C13—C14	120.22 (10)	C22—C27—H27A	119.7
O2—C13—C10	120.30 (9)	O1—C28—H28A	109.5
C14—C13—C10	119.47 (9)	O1—C28—H28B	109.5
C15—C14—C13	122.15 (10)	H28A—C28—H28B	109.5
C15—C14—H14A	118.9	O1—C28—H28C	109.5
C13—C14—H14A	118.9	H28A—C28—H28C	109.5
C14—C15—C16	128.48 (10)	H28B—C28—H28C	109.5
C6—C1—C2—C3	0.19 (18)	C11—C10—C13—C14	109.02 (11)
C1—C2—C3—F1	179.74 (11)	O2—C13—C14—C15	169.89 (11)
C1—C2—C3—C4	0.16 (19)	C10—C13—C14—C15	−8.99 (16)
F1—C3—C4—C5	−179.84 (10)	C13—C14—C15—C16	−175.29 (11)
C2—C3—C4—C5	−0.25 (18)	C14—C15—C16—C17	4.5 (2)
C3—C4—C5—C6	0.00 (16)	C14—C15—C16—C21	−176.78 (12)
C2—C1—C6—C5	−0.43 (17)	C21—C16—C17—F3	−178.53 (11)
C2—C1—C6—C7	178.74 (10)	C15—C16—C17—F3	0.30 (18)
C4—C5—C6—C1	0.33 (16)	C21—C16—C17—C18	0.26 (18)
C4—C5—C6—C7	−178.83 (10)	C15—C16—C17—C18	179.09 (12)
C1—C6—C7—C8	137.19 (11)	F3—C17—C18—C19	178.96 (12)
C5—C6—C7—C8	−43.66 (14)	C16—C17—C18—C19	0.2 (2)
C1—C6—C7—C12	−43.81 (15)	C17—C18—C19—C20	−0.4 (2)
C5—C6—C7—C12	135.34 (11)	C18—C19—C20—C21	0.3 (2)
C12—C7—C8—C9	−0.99 (15)	C19—C20—C21—F2	−179.68 (12)
C6—C7—C8—C9	178.01 (9)	C19—C20—C21—C16	0.2 (2)
C7—C8—C9—C10	−1.73 (15)	C17—C16—C21—F2	179.42 (11)
C7—C8—C9—C22	177.95 (9)	C15—C16—C21—F2	0.51 (17)
C8—C9—C10—C11	2.77 (15)	C17—C16—C21—C20	−0.45 (18)
C22—C9—C10—C11	−176.91 (9)	C15—C16—C21—C20	−179.36 (12)
C8—C9—C10—C13	−176.84 (9)	C8—C9—C22—C27	125.20 (11)
C22—C9—C10—C13	3.48 (15)	C10—C9—C22—C27	−55.12 (14)
C28—O1—C11—C12	−0.06 (15)	C8—C9—C22—C23	−56.29 (14)
C28—O1—C11—C10	−179.63 (9)	C10—C9—C22—C23	123.38 (11)
C9—C10—C11—O1	178.46 (9)	C27—C22—C23—C24	1.97 (16)
C13—C10—C11—O1	−1.92 (14)	C9—C22—C23—C24	−176.57 (10)
C9—C10—C11—C12	−1.12 (15)	C22—C23—C24—C25	−0.82 (17)
C13—C10—C11—C12	178.50 (9)	C23—C24—C25—F4	179.25 (10)
O1—C11—C12—C7	178.86 (10)	C23—C24—C25—C26	−1.08 (18)
C10—C11—C12—C7	−1.60 (15)	F4—C25—C26—C27	−178.59 (10)
C8—C7—C12—C11	2.64 (15)	C24—C25—C26—C27	1.74 (17)
C6—C7—C12—C11	−176.37 (9)	C25—C26—C27—C22	−0.51 (16)
C9—C10—C13—O2	109.75 (12)	C23—C22—C27—C26	−1.27 (16)
C11—C10—C13—O2	−69.86 (14)	C9—C22—C27—C26	177.25 (10)
C9—C10—C13—C14	−71.37 (14)

D—H···A	D—H	H···A	D···A	D—H···A
C2—H2A···F3i	0.93	2.46	3.3655 (18)	164
C8—H8A···F4ii	0.93	2.45	3.3726 (13)	170
C24—H24A···O2iii	0.93	2.57	3.4371 (14)	155
C20—H20A···Cg1iv	0.93	2.83	3.5082 (14)	130
C27—H27A···Cg2v	0.93	2.68	3.4068 (12)	136
C28—H28B···Cg2vi	0.96	2.90	3.7990 (15)	157

Table 1

Hydrogen-bond geometry (Å, °)

Cg1 and Cg2 are the centroids of the C1–C6 and C7–C12 rings, respectively.

D—H⋯A	D—H	H⋯A	D⋯A	D—H⋯A
C2—H2A⋯F3i	0.93	2.46	3.3655 (18)	164
C8—H8A⋯F4ii	0.93	2.45	3.3726 (13)	170
C24—H24A⋯O2iii	0.93	2.57	3.4371 (14)	155
C20—H20A⋯Cg1iv	0.93	2.83	3.5082 (14)	130
C27—H27A⋯Cg2v	0.93	2.68	3.4068 (12)	136
C28—H28B⋯Cg2vi	0.96	2.90	3.7990 (15)	157

Symmetry codes: (i) ; (ii) ; (iii) ; (iv) ; (v) ; (vi) .