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Crystallization of 5,5'-diphenyl-2,2'-(p-phenyl­ene)di-1,3-ox­az­ole (POPOP), C24H16N2O2, from chloro­form or 1,4-di­oxane yielded crystals in pure and solvated forms, respectively. The solvated crystals of POPOP were found to contain 1,4-dioxane in a strict 1:2 compound-solvent stoichiometry, C24H16N2O2·C4H8O2, thus being a defined solvent-inclusion compound. The crystal system is monoclinic in both cases and the asymmetric unit of the cell contains only half of the mol­ecule (plus one dioxane mol­ecule in the case of the solvated structure), owing to the centrosymmetry of the di-1,3-oxazole mol­ecule.

Supporting information

cif

Crystallographic Information File (CIF) https://doi.org/10.1107/S0108270110022092/eg3047sup1.cif
Contains datablocks I, II, global

hkl

Structure factor file (CIF format) https://doi.org/10.1107/S0108270110022092/eg3047Isup2.hkl
Contains datablock I

hkl

Structure factor file (CIF format) https://doi.org/10.1107/S0108270110022092/eg3047IIsup3.hkl
Contains datablock II

CCDC references: 786818; 786819

Computing details top

For both compounds, data collection: SMART (Bruker, 2003); cell refinement: SMART (Bruker, 2003); data reduction: SAINT (Bruker, 2003); program(s) used to solve structure: SHELXTL (Sheldrick, 2008); program(s) used to refine structure: SHELXTL (Sheldrick, 2008); molecular graphics: SHELXTL (Sheldrick, 2008); software used to prepare material for publication: SHELXTL (Sheldrick, 2008).

(I) 5,5'-diphenyl-2,2'-(p-phenylene)di-1,3-oxazole top
Crystal data top
C24H16N2O2F(000) = 380
Mr = 364.39Dx = 1.315 Mg m3
Monoclinic, P21/cMelting point = 517–519 K
Hall symbol: -P 2ybcMo Kα radiation, λ = 0.71073 Å
a = 9.1393 (14) ÅCell parameters from 2741 reflections
b = 5.2461 (8) Åθ = 2.2–29.2°
c = 19.204 (3) ŵ = 0.09 mm1
β = 91.807 (11)°T = 153 K
V = 920.3 (3) Å3Plate, colourless
Z = 20.27 × 0.14 × 0.11 mm
Data collection top
Bruker SMART CCD area-detector
diffractometer
2107 independent reflections
Radiation source: fine-focus sealed tube1644 reflections with I > 2σ(I)
Graphite monochromatorRint = 0.050
φ and ω scansθmax = 27.5°, θmin = 3.0°
Absorption correction: multi-scan
(SADABS; Sheldrick, 2004)
h = 1111
Tmin = 0.978, Tmax = 0.991k = 66
16533 measured reflectionsl = 2424
Refinement top
Refinement on F2Primary atom site location: structure-invariant direct methods
Least-squares matrix: fullSecondary atom site location: difference Fourier map
R[F2 > 2σ(F2)] = 0.037Hydrogen site location: inferred from neighbouring sites
wR(F2) = 0.094H-atom parameters constrained
S = 1.03 w = 1/[σ2(Fo2) + (0.0404P)2 + 0.2332P]
where P = (Fo2 + 2Fc2)/3
2107 reflections(Δ/σ)max < 0.001
127 parametersΔρmax = 0.22 e Å3
0 restraintsΔρmin = 0.19 e Å3
Special details top

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 (Å2) top
xyzUiso*/UeqOcc. (<1)
C10.38668 (13)0.8295 (2)0.01505 (6)0.0247 (3)
H10.30910.71350.02530.030*
C20.57922 (13)0.9840 (2)0.06280 (6)0.0248 (3)
H20.63310.97330.10580.030*
C30.46596 (13)0.8113 (2)0.04816 (6)0.0222 (3)
C40.43224 (13)0.6177 (2)0.09976 (6)0.0224 (3)
C50.42273 (14)0.3743 (2)0.18784 (6)0.0261 (3)
H50.44510.29790.23180.031*
C60.31054 (13)0.3051 (2)0.14422 (6)0.0234 (3)
C70.19573 (13)0.1136 (2)0.14648 (6)0.0237 (3)
C80.08296 (15)0.1035 (3)0.09601 (7)0.0306 (3)
H80.07970.22430.05910.037*
C90.02462 (15)0.0822 (3)0.09940 (7)0.0362 (3)
H90.10070.08880.06460.043*
C100.02188 (15)0.2579 (3)0.15314 (8)0.0352 (3)
H100.09610.38410.15540.042*
C110.08988 (15)0.2491 (2)0.20384 (7)0.0318 (3)
H110.09200.36940.24080.038*
C120.19801 (14)0.0655 (2)0.20057 (7)0.0267 (3)
H120.27440.06090.23530.032*
Cg10.08670.07290.14990.010*0.00
Cg20.39620.46630.13550.010*0.00
N10.50023 (12)0.57309 (19)0.15899 (5)0.0258 (2)
O10.31544 (9)0.46141 (16)0.08657 (4)0.0234 (2)
Atomic displacement parameters (Å2) top
U11U22U33U12U13U23
C10.0252 (6)0.0238 (6)0.0250 (6)0.0009 (5)0.0003 (5)0.0011 (5)
C20.0262 (6)0.0262 (6)0.0219 (6)0.0025 (5)0.0013 (5)0.0001 (5)
C30.0246 (6)0.0217 (6)0.0206 (6)0.0039 (5)0.0036 (5)0.0007 (5)
C40.0242 (6)0.0212 (6)0.0219 (6)0.0009 (5)0.0015 (5)0.0027 (5)
C50.0327 (7)0.0228 (6)0.0227 (6)0.0009 (5)0.0008 (5)0.0026 (5)
C60.0286 (6)0.0214 (6)0.0204 (6)0.0045 (5)0.0041 (5)0.0015 (5)
C70.0252 (6)0.0225 (6)0.0236 (6)0.0032 (5)0.0047 (5)0.0020 (5)
C80.0333 (7)0.0320 (7)0.0265 (7)0.0010 (6)0.0007 (5)0.0027 (5)
C90.0315 (7)0.0419 (8)0.0351 (8)0.0044 (6)0.0002 (6)0.0071 (6)
C100.0333 (7)0.0305 (7)0.0424 (8)0.0064 (6)0.0104 (6)0.0065 (6)
C110.0347 (7)0.0248 (7)0.0364 (7)0.0026 (5)0.0117 (6)0.0034 (5)
C120.0271 (6)0.0256 (7)0.0275 (6)0.0042 (5)0.0047 (5)0.0012 (5)
N10.0307 (6)0.0242 (5)0.0224 (5)0.0001 (4)0.0004 (4)0.0013 (4)
O10.0260 (4)0.0235 (4)0.0209 (4)0.0011 (3)0.0007 (3)0.0024 (3)
Geometric parameters (Å, º) top
C1—C2i1.3832 (17)C6—C71.4544 (17)
C1—C31.3970 (17)C7—C81.3934 (18)
C1—H10.9500C7—C121.4002 (17)
C2—C1i1.3832 (17)C8—C91.3871 (19)
C2—C31.3977 (17)C8—H80.9500
C2—H20.9500C9—C101.383 (2)
C3—C41.4584 (17)C9—H90.9500
C4—N11.3001 (15)C10—C111.390 (2)
C4—O11.3635 (14)C10—H100.9500
C5—C61.3530 (17)C11—C121.3825 (18)
C5—N11.3859 (16)C11—H110.9500
C5—H50.9500C12—H120.9500
C6—O11.3797 (14)
C2i—C1—C3120.19 (11)C8—C7—C6121.60 (11)
C2i—C1—H1119.9C12—C7—C6119.46 (11)
C3—C1—H1119.9C9—C8—C7120.26 (12)
C1i—C2—C3120.41 (11)C9—C8—H8119.9
C1i—C2—H2119.8C7—C8—H8119.9
C3—C2—H2119.8C10—C9—C8120.45 (13)
C1—C3—C2119.40 (11)C10—C9—H9119.8
C1—C3—C4121.54 (11)C8—C9—H9119.8
C2—C3—C4119.06 (11)C9—C10—C11119.74 (13)
N1—C4—O1113.83 (10)C9—C10—H10120.1
N1—C4—C3127.92 (11)C11—C10—H10120.1
O1—C4—C3118.26 (10)C12—C11—C10120.14 (13)
C6—C5—N1109.96 (11)C12—C11—H11119.9
C6—C5—H5125.0C10—C11—H11119.9
N1—C5—H5125.0C11—C12—C7120.47 (12)
C5—C6—O1107.11 (11)C11—C12—H12119.8
C5—C6—C7134.45 (11)C7—C12—H12119.8
O1—C6—C7118.44 (10)C4—N1—C5104.43 (10)
C8—C7—C12118.94 (12)C4—O1—C6104.68 (9)
C2i—C1—C3—C20.4 (2)C6—C7—C8—C9179.70 (12)
C2i—C1—C3—C4179.67 (11)C7—C8—C9—C100.5 (2)
C1i—C2—C3—C10.4 (2)C8—C9—C10—C110.3 (2)
C1i—C2—C3—C4179.69 (11)C9—C10—C11—C120.1 (2)
C1—C3—C4—N1177.04 (12)C10—C11—C12—C70.28 (19)
C2—C3—C4—N13.70 (19)C8—C7—C12—C110.10 (19)
C1—C3—C4—O13.43 (17)C6—C7—C12—C11179.89 (11)
C2—C3—C4—O1175.83 (10)O1—C4—N1—C50.56 (14)
N1—C5—C6—O10.13 (14)C3—C4—N1—C5178.99 (12)
N1—C5—C6—C7179.87 (12)C6—C5—N1—C40.41 (14)
C5—C6—C7—C8172.92 (14)N1—C4—O1—C60.50 (13)
O1—C6—C7—C87.09 (17)C3—C4—O1—C6179.10 (10)
C5—C6—C7—C127.1 (2)C5—C6—O1—C40.20 (12)
O1—C6—C7—C12172.92 (10)C7—C6—O1—C4179.80 (10)
C12—C7—C8—C90.31 (19)
Symmetry code: (i) x+1, y+2, z.
Hydrogen-bond geometry (Å, º) top
D—H···AD—HH···AD···AD—H···A
C5—H5···N1ii0.952.443.3932 (16)176
C11—H11···Cg1iii0.952.903.6966 (14)142
Symmetry codes: (ii) x+1, y1/2, z+1/2; (iii) x, y1/2, z+1/2.
(II) 5,5'-diphenyl-2,2'-(p-phenylene)di-1,3-oxazole dioxane disolvate top
Crystal data top
C24H16N2O2·2C4H8O2F(000) = 572
Mr = 540.60Dx = 1.354 Mg m3
Monoclinic, P21/nMelting point = 519–519 K
Hall symbol: -P 2ynMo Kα radiation, λ = 0.71073 Å
a = 12.2424 (6) ÅCell parameters from 4956 reflections
b = 5.9115 (3) Åθ = 3.4–32.3°
c = 18.5046 (9) ŵ = 0.09 mm1
β = 97.977 (3)°T = 153 K
V = 1326.24 (11) Å3Needle, colourless
Z = 20.44 × 0.11 × 0.09 mm
Data collection top
Bruker SMART CCD area-detector
diffractometer
2324 independent reflections
Radiation source: fine-focus sealed tube1857 reflections with I > 2σ(I)
Graphite monochromatorRint = 0.044
φ and ω scansθmax = 25.0°, θmin = 3.4°
Absorption correction: multi-scan
(SADABS; Sheldrick, 2004)
h = 1414
Tmin = 0.960, Tmax = 0.992k = 67
22800 measured reflectionsl = 2222
Refinement top
Refinement on F2Primary atom site location: structure-invariant direct methods
Least-squares matrix: fullSecondary atom site location: difference Fourier map
R[F2 > 2σ(F2)] = 0.030Hydrogen site location: inferred from neighbouring sites
wR(F2) = 0.075H-atom parameters constrained
S = 1.01 w = 1/[σ2(Fo2) + (0.0318P)2 + 0.4537P]
where P = (Fo2 + 2Fc2)/3
2324 reflections(Δ/σ)max < 0.001
181 parametersΔρmax = 0.19 e Å3
0 restraintsΔρmin = 0.16 e Å3
Special details top

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 (Å2) top
xyzUiso*/UeqOcc. (<1)
C10.40678 (10)0.1364 (2)0.01121 (7)0.0227 (3)
H10.34290.22930.01890.027*
C20.58498 (10)0.0496 (2)0.05524 (7)0.0230 (3)
H20.64320.08340.09320.028*
C30.49169 (10)0.1887 (2)0.04453 (7)0.0211 (3)
C40.48480 (10)0.3818 (2)0.09274 (7)0.0211 (3)
C50.50790 (11)0.6286 (2)0.17666 (7)0.0257 (3)
H50.53960.71110.21840.031*
C60.41094 (10)0.6784 (2)0.13583 (7)0.0212 (3)
C70.32829 (10)0.8534 (2)0.13969 (7)0.0222 (3)
C80.22431 (11)0.8439 (2)0.09840 (7)0.0279 (3)
H80.20600.72200.06550.033*
C90.14739 (12)1.0118 (3)0.10520 (8)0.0328 (3)
H90.07661.00440.07680.039*
C100.17278 (12)1.1902 (2)0.15296 (8)0.0319 (3)
H100.11941.30370.15780.038*
C110.27666 (11)1.2024 (2)0.19378 (7)0.0288 (3)
H110.29481.32530.22630.035*
C120.35364 (11)1.0356 (2)0.18707 (7)0.0248 (3)
H120.42471.04500.21500.030*
N10.55444 (9)0.44003 (19)0.14900 (6)0.0255 (3)
O10.39440 (7)0.51870 (15)0.08077 (5)0.0215 (2)
C130.61584 (12)1.3224 (2)0.33040 (8)0.0315 (3)
H13A0.64651.46350.31260.038*
H13B0.53541.32120.31380.038*
C140.66792 (12)1.1228 (3)0.29878 (8)0.0344 (4)
H14A0.65161.12740.24490.041*
H14B0.74901.12960.31240.041*
C150.64950 (13)0.9120 (3)0.40270 (8)0.0355 (4)
H15A0.73020.91590.41810.043*
H15B0.62060.77010.42120.043*
C160.59690 (13)1.1111 (2)0.43462 (8)0.0338 (3)
H16A0.51581.10180.42160.041*
H16B0.61411.10650.48850.041*
O20.63519 (8)1.31862 (16)0.40845 (5)0.0326 (3)
O30.62697 (9)0.91601 (17)0.32503 (5)0.0379 (3)
CG10.25051.02290.14620.010*0.00
CG20.47050.52950.12700.010*0.00
CG30.50000.00000.00000.010*0.00
Atomic displacement parameters (Å2) top
U11U22U33U12U13U23
C10.0224 (6)0.0219 (7)0.0242 (7)0.0029 (5)0.0049 (5)0.0037 (5)
C20.0227 (6)0.0236 (7)0.0226 (7)0.0011 (5)0.0027 (5)0.0017 (5)
C30.0252 (6)0.0191 (7)0.0204 (6)0.0020 (5)0.0077 (5)0.0035 (5)
C40.0210 (6)0.0194 (7)0.0236 (6)0.0000 (5)0.0058 (5)0.0044 (5)
C50.0296 (7)0.0226 (7)0.0248 (7)0.0010 (6)0.0033 (6)0.0033 (6)
C60.0271 (7)0.0177 (7)0.0197 (6)0.0026 (5)0.0063 (5)0.0008 (5)
C70.0269 (7)0.0197 (7)0.0216 (6)0.0021 (5)0.0090 (5)0.0034 (5)
C80.0312 (7)0.0254 (8)0.0271 (7)0.0001 (6)0.0043 (6)0.0025 (6)
C90.0291 (7)0.0323 (8)0.0367 (8)0.0044 (6)0.0031 (6)0.0035 (7)
C100.0347 (8)0.0250 (8)0.0383 (8)0.0077 (6)0.0134 (7)0.0045 (6)
C110.0384 (8)0.0203 (7)0.0306 (8)0.0028 (6)0.0145 (6)0.0016 (6)
C120.0269 (7)0.0238 (7)0.0249 (7)0.0040 (6)0.0084 (5)0.0007 (6)
N10.0264 (6)0.0225 (6)0.0270 (6)0.0007 (5)0.0019 (5)0.0011 (5)
O10.0236 (4)0.0192 (5)0.0223 (5)0.0019 (4)0.0047 (4)0.0013 (4)
C130.0343 (8)0.0279 (8)0.0312 (8)0.0002 (6)0.0008 (6)0.0048 (6)
C140.0354 (8)0.0359 (9)0.0315 (8)0.0026 (7)0.0041 (6)0.0031 (7)
C150.0481 (9)0.0240 (8)0.0325 (8)0.0009 (7)0.0009 (7)0.0016 (6)
C160.0416 (8)0.0283 (8)0.0308 (8)0.0019 (6)0.0030 (6)0.0027 (6)
O20.0420 (6)0.0222 (5)0.0318 (5)0.0016 (4)0.0015 (4)0.0019 (4)
O30.0533 (7)0.0266 (6)0.0321 (6)0.0018 (5)0.0006 (5)0.0045 (5)
Geometric parameters (Å, º) top
C1—C2i1.3805 (19)C10—H100.9500
C1—C31.3936 (18)C11—C121.3813 (19)
C1—H10.9500C11—H110.9500
C2—C1i1.3805 (19)C12—H120.9500
C2—C31.3990 (18)C13—O21.4310 (17)
C2—H20.9500C13—C141.498 (2)
C3—C41.4587 (18)C13—H13A0.9900
C4—N11.2971 (16)C13—H13B0.9900
C4—O11.3641 (15)C14—O31.4314 (18)
C5—C61.3482 (18)C14—H14A0.9900
C5—N11.3820 (17)C14—H14B0.9900
C5—H50.9500C15—O31.4257 (17)
C6—O11.3830 (15)C15—C161.501 (2)
C6—C71.4557 (18)C15—H15A0.9900
C7—C81.3919 (18)C15—H15B0.9900
C7—C121.3963 (19)C16—O21.4221 (17)
C8—C91.386 (2)C16—H16A0.9900
C8—H80.9500C16—H16B0.9900
C9—C101.383 (2)CG3—C2i1.3849 (13)
C9—H90.9500CG3—C1i1.3894 (13)
C10—C111.388 (2)
C2i—C1—C3120.34 (12)C11—C12—C7120.81 (13)
C2i—C1—H1119.8C11—C12—H12119.6
C3—C1—H1119.8C7—C12—H12119.6
C1i—C2—C3120.64 (12)C4—N1—C5104.62 (11)
C1i—C2—H2119.7C4—O1—C6104.63 (10)
C3—C2—H2119.7O2—C13—C14111.22 (11)
C1—C3—C2119.02 (12)O2—C13—H13A109.4
C1—C3—C4121.71 (11)C14—C13—H13A109.4
C2—C3—C4119.26 (11)O2—C13—H13B109.4
N1—C4—O1113.64 (11)C14—C13—H13B109.4
N1—C4—C3127.68 (12)H13A—C13—H13B108.0
O1—C4—C3118.65 (11)O3—C14—C13110.61 (11)
C6—C5—N1110.16 (11)O3—C14—H14A109.5
C6—C5—H5124.9C13—C14—H14A109.5
N1—C5—H5124.9O3—C14—H14B109.5
C5—C6—O1106.94 (11)C13—C14—H14B109.5
C5—C6—C7133.75 (12)H14A—C14—H14B108.1
O1—C6—C7119.30 (11)O3—C15—C16110.49 (12)
C8—C7—C12118.84 (12)O3—C15—H15A109.6
C8—C7—C6122.23 (12)C16—C15—H15A109.6
C12—C7—C6118.93 (12)O3—C15—H15B109.6
C9—C8—C7120.16 (13)C16—C15—H15B109.6
C9—C8—H8119.9H15A—C15—H15B108.1
C7—C8—H8119.9O2—C16—C15111.27 (12)
C10—C9—C8120.58 (13)O2—C16—H16A109.4
C10—C9—H9119.7C15—C16—H16A109.4
C8—C9—H9119.7O2—C16—H16B109.4
C9—C10—C11119.67 (13)C15—C16—H16B109.4
C9—C10—H10120.2H16A—C16—H16B108.0
C11—C10—H10120.2C16—O2—C13109.93 (10)
C12—C11—C10119.93 (13)C15—O3—C14109.17 (11)
C12—C11—H11120.0C2i—CG3—C1i120.32 (8)
C10—C11—H11120.0
C2i—C1—C3—C20.2 (2)C9—C10—C11—C120.7 (2)
C2i—C1—C3—C4179.00 (11)C10—C11—C12—C70.2 (2)
C1i—C2—C3—C10.2 (2)C8—C7—C12—C110.87 (19)
C1i—C2—C3—C4179.03 (11)C6—C7—C12—C11178.36 (12)
C1—C3—C4—N1175.38 (13)O1—C4—N1—C50.05 (14)
C2—C3—C4—N13.4 (2)C3—C4—N1—C5178.03 (12)
C1—C3—C4—O12.51 (18)C6—C5—N1—C40.03 (14)
C2—C3—C4—O1178.69 (11)N1—C4—O1—C60.10 (14)
N1—C5—C6—O10.09 (14)C3—C4—O1—C6178.28 (10)
N1—C5—C6—C7179.60 (13)C5—C6—O1—C40.11 (13)
C5—C6—C7—C8167.72 (14)C7—C6—O1—C4179.71 (11)
O1—C6—C7—C811.75 (18)O2—C13—C14—O357.68 (15)
C5—C6—C7—C1211.5 (2)O3—C15—C16—O258.38 (16)
O1—C6—C7—C12169.05 (11)C15—C16—O2—C1356.11 (15)
C12—C7—C8—C90.7 (2)C14—C13—O2—C1655.87 (15)
C6—C7—C8—C9178.46 (12)C16—C15—O3—C1458.57 (15)
C7—C8—C9—C100.1 (2)C13—C14—O3—C1558.42 (15)
C8—C9—C10—C110.8 (2)
Symmetry code: (i) x+1, y, z.
Hydrogen-bond geometry (Å, º) top
D—H···AD—HH···AD···AD—H···A
C14—H14A···N1ii0.992.723.4728 (18)133
C5—H5···O30.952.433.3821 (16)178
C15—H15B···O2iii0.992.693.5146 (18)141
C14—H14B···N1iv0.992.663.5697 (18)153
C13—H13A···O3ii0.992.703.5138 (18)140
Symmetry codes: (ii) x, y+1, z; (iii) x, y1, z; (iv) x+3/2, y+1/2, z+1/2.
Interplanar angles and centroid-to-centroid distances (°, Å) of POPOP in (I) and in its 1,4-dioxane inclusion analogue, (II) top
(I)(II)
AngleDistanceAngleDistance
A/B3.89 (19)3.723.77 (20)3.69
B/C6.92 (10)3.7411.54 (9)4.08
 

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