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The title compound, C24H21N3, was synthesized by the reaction of 4,5-di­phenyl-2-(2-nitro­phenyl)­imidazole with acetone, induced by a low-valent titanium reagent (TiCl4/Zn). The di­hydro­pyrimidine ring shows a skew-boat conform­ation.

Supporting information

cif

Crystallographic Information File (CIF) https://doi.org/10.1107/S1600536803027089/ob6321sup1.cif
Contains datablocks global, I

hkl

Structure factor file (CIF format) https://doi.org/10.1107/S1600536803027089/ob6321Isup2.hkl
Contains datablock I

CCDC reference: 232129

Key indicators

  • Single-crystal X-ray study
  • T = 296 K
  • Mean [sigma](C-C) = 0.003 Å
  • R factor = 0.039
  • wR factor = 0.108
  • Data-to-parameter ratio = 14.1

checkCIF/PLATON results

No syntax errors found



Alert level C PLAT152_ALERT_1_C Supplied and Calc Volume s.u. Inconsistent ..... ? PLAT230_ALERT_2_C Hirshfeld Test Diff for C11 - C16 = 5.48 su
0 ALERT level A = In general: serious problem 0 ALERT level B = Potentially serious problem 2 ALERT level C = Check and explain 0 ALERT level G = General alerts; check 1 ALERT type 1 CIF construction/syntax error, inconsistent or missing data 1 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 0 ALERT type 4 Improvement, methodology, query or suggestion

Computing details top

Data collection: XSCANS (Siemens, 1994); cell refinement: XSCANS; data reduction: SHELXTL (Sheldrick, 1997); program(s) used to solve structure: SHELXTL; program(s) used to refine structure: SHELXTL; molecular graphics: SHELXTL; software used to prepare material for publication: SHELXTL.

5,5-dimethyl-8,9-methylenedioxyl-2,3-diphenyl- 5,6-dihydroimidazo[1,2-c]quinazoline top
Crystal data top
C24H21N3F(000) = 744
Mr = 351.44Dx = 1.198 Mg m3
Monoclinic, P21/cMelting point = 513–514 K
Hall symbol: -P 2ybcMo Kα radiation, λ = 0.71073 Å
a = 8.140 (1) ÅCell parameters from 35 reflections
b = 18.522 (2) Åθ = 3.8–14.8°
c = 12.963 (2) ŵ = 0.07 mm1
β = 94.32 (1)°T = 296 K
V = 1948.8 (3) Å3Block, colorless
Z = 40.58 × 0.56 × 0.50 mm
Data collection top
Siemens P4
diffractometer
Rint = 0.010
Radiation source: normal-focus sealed tubeθmax = 25.3°, θmin = 1.9°
Graphite monochromatorh = 09
ω scansk = 022
4071 measured reflectionsl = 1515
3527 independent reflections3 standard reflections every 97 reflections
2148 reflections with I > 2σ(I) intensity decay: 3.2%
Refinement top
Refinement on F2Secondary atom site location: difference Fourier map
Least-squares matrix: fullHydrogen site location: inferred from neighbouring sites
R[F2 > 2σ(F2)] = 0.039H atoms treated by a mixture of independent and constrained refinement
wR(F2) = 0.108 w = 1/[σ2(Fo2) + (0.0558P)2]
where P = (Fo2 + 2Fc2)/3
S = 0.96(Δ/σ)max < 0.001
3527 reflectionsΔρmax = 0.16 e Å3
251 parametersΔρmin = 0.16 e Å3
0 restraintsExtinction correction: SHELXTL, Fc*=kFc[1+0.001xFc2λ3/sin(2θ)]-1/4
Primary atom site location: structure-invariant direct methodsExtinction coefficient: 0.0177 (15)
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*/Ueq
N10.68676 (18)0.76901 (9)0.40199 (11)0.0526 (4)
N20.54749 (16)0.69878 (7)0.51846 (9)0.0427 (4)
N30.65752 (17)0.67007 (8)0.67590 (10)0.0473 (4)
C10.7906 (2)0.76864 (10)0.57961 (12)0.0468 (4)
C20.9028 (2)0.79347 (11)0.65836 (14)0.0593 (5)
H20.89990.77500.72490.071*
C31.0181 (2)0.84522 (12)0.63814 (16)0.0671 (6)
H31.09190.86210.69090.081*
C41.0228 (2)0.87178 (12)0.53895 (16)0.0677 (6)
H41.10170.90600.52520.081*
C50.9128 (2)0.84847 (11)0.45992 (15)0.0601 (5)
H50.91780.86700.39360.072*
C60.7943 (2)0.79720 (10)0.47953 (12)0.0477 (4)
C70.5231 (2)0.74503 (10)0.42435 (12)0.0512 (5)
C80.6704 (2)0.71227 (9)0.59429 (12)0.0435 (4)
C90.5176 (2)0.62920 (9)0.65247 (12)0.0449 (4)
C100.4463 (2)0.64635 (9)0.55663 (12)0.0426 (4)
C110.4641 (2)0.57520 (10)0.72717 (12)0.0515 (5)
C120.5793 (3)0.53855 (11)0.79079 (13)0.0690 (6)
H120.69080.54780.78650.083*
C130.5298 (4)0.48780 (13)0.86136 (17)0.0882 (8)
H130.60860.46270.90280.106*
C140.3653 (4)0.47466 (13)0.87008 (17)0.0935 (8)
H140.33290.44060.91720.112*
C150.2498 (3)0.51163 (13)0.80955 (15)0.0848 (8)
H150.13840.50350.81630.102*
C160.2983 (3)0.56143 (11)0.73785 (14)0.0693 (6)
H160.21870.58600.69630.083*
C170.2937 (2)0.61819 (9)0.50113 (11)0.0436 (4)
C180.1465 (2)0.65463 (10)0.50433 (14)0.0554 (5)
H180.14310.69770.54110.066*
C190.0042 (2)0.62802 (12)0.45367 (15)0.0659 (6)
H190.09380.65360.45530.079*
C200.0066 (3)0.56452 (13)0.40133 (15)0.0708 (6)
H200.08970.54660.36750.085*
C210.1511 (3)0.52687 (12)0.39850 (14)0.0704 (6)
H210.15240.48310.36340.084*
C220.2945 (2)0.55355 (10)0.44741 (13)0.0564 (5)
H220.39240.52800.44440.068*
C230.4534 (3)0.70291 (14)0.33102 (14)0.0899 (8)
H23A0.45850.73190.27000.108*
H23B0.34080.69040.33980.108*
H23C0.51660.65960.32410.108*
C240.4117 (2)0.80771 (12)0.45096 (17)0.0795 (7)
H24A0.46060.83290.51030.095*
H24B0.30590.78930.46600.095*
H24C0.39880.84030.39330.095*
H1N0.685 (2)0.7914 (10)0.3418 (14)0.070 (6)*
Atomic displacement parameters (Å2) top
U11U22U33U12U13U23
N10.0497 (10)0.0727 (11)0.0351 (8)0.0045 (8)0.0021 (7)0.0071 (8)
N20.0418 (8)0.0535 (9)0.0324 (7)0.0037 (7)0.0010 (6)0.0015 (6)
N30.0520 (9)0.0564 (9)0.0331 (7)0.0029 (8)0.0020 (6)0.0011 (7)
C10.0407 (10)0.0589 (11)0.0411 (10)0.0034 (9)0.0043 (8)0.0048 (8)
C20.0527 (12)0.0795 (14)0.0454 (10)0.0026 (11)0.0019 (9)0.0059 (10)
C30.0512 (12)0.0855 (15)0.0638 (13)0.0097 (12)0.0014 (10)0.0128 (11)
C40.0513 (12)0.0761 (15)0.0764 (15)0.0104 (11)0.0101 (11)0.0009 (12)
C50.0514 (11)0.0734 (14)0.0562 (12)0.0041 (11)0.0087 (10)0.0050 (10)
C60.0400 (10)0.0603 (11)0.0432 (10)0.0040 (9)0.0062 (8)0.0032 (9)
C70.0465 (10)0.0660 (12)0.0403 (10)0.0036 (10)0.0016 (8)0.0122 (9)
C80.0425 (10)0.0550 (11)0.0332 (9)0.0056 (9)0.0038 (8)0.0032 (8)
C90.0530 (11)0.0479 (10)0.0339 (9)0.0027 (9)0.0034 (8)0.0020 (8)
C100.0484 (10)0.0443 (10)0.0352 (9)0.0019 (8)0.0048 (8)0.0016 (7)
C110.0706 (13)0.0502 (11)0.0333 (9)0.0043 (10)0.0023 (9)0.0050 (8)
C120.0887 (16)0.0730 (14)0.0455 (11)0.0133 (13)0.0067 (11)0.0106 (10)
C130.119 (2)0.0839 (17)0.0618 (14)0.0116 (16)0.0048 (14)0.0244 (13)
C140.145 (3)0.0772 (17)0.0569 (14)0.0273 (18)0.0024 (16)0.0160 (12)
C150.1085 (19)0.0946 (18)0.0503 (12)0.0472 (15)0.0014 (13)0.0052 (12)
C160.0849 (16)0.0769 (15)0.0444 (11)0.0250 (13)0.0064 (11)0.0050 (10)
C170.0514 (11)0.0459 (10)0.0335 (9)0.0008 (9)0.0026 (8)0.0018 (8)
C180.0554 (12)0.0506 (11)0.0599 (11)0.0011 (10)0.0024 (9)0.0056 (9)
C190.0536 (13)0.0732 (15)0.0700 (13)0.0014 (11)0.0013 (11)0.0038 (11)
C200.0621 (14)0.0895 (17)0.0593 (12)0.0190 (13)0.0050 (11)0.0087 (12)
C210.0863 (16)0.0674 (14)0.0574 (12)0.0143 (13)0.0050 (12)0.0204 (11)
C220.0633 (13)0.0549 (12)0.0504 (11)0.0048 (10)0.0009 (9)0.0073 (9)
C230.0999 (17)0.125 (2)0.0419 (11)0.0479 (16)0.0150 (11)0.0185 (12)
C240.0552 (13)0.0813 (16)0.1033 (17)0.0122 (12)0.0133 (12)0.0396 (13)
Geometric parameters (Å, º) top
N1—C61.385 (2)C12—C131.392 (3)
N1—C71.454 (2)C12—H120.9300
N1—H1N0.883 (18)C13—C141.374 (3)
N2—C81.3714 (19)C13—H130.9300
N2—C101.389 (2)C14—C151.363 (3)
N2—C71.492 (2)C14—H140.9300
N3—C81.326 (2)C15—C161.388 (3)
N3—C91.382 (2)C15—H150.9300
C1—C21.395 (2)C16—H160.9300
C1—C61.404 (2)C17—C181.379 (2)
C1—C81.454 (2)C17—C221.385 (2)
C2—C31.380 (3)C18—C191.379 (2)
C2—H20.9300C18—H180.9300
C3—C41.380 (3)C19—C201.359 (3)
C3—H30.9300C19—H190.9300
C4—C51.378 (2)C20—C211.370 (3)
C4—H40.9300C20—H200.9300
C5—C61.391 (2)C21—C221.377 (2)
C5—H50.9300C21—H210.9300
C7—C231.514 (2)C22—H220.9300
C7—C241.528 (3)C23—H23A0.9600
C9—C101.369 (2)C23—H23B0.9600
C9—C111.480 (2)C23—H23C0.9600
C10—C171.482 (2)C24—H24A0.9600
C11—C121.380 (2)C24—H24B0.9600
C11—C161.390 (3)C24—H24C0.9600
C6—N1—C7120.62 (14)C11—C12—H12119.7
C6—N1—H1N115.7 (12)C13—C12—H12119.7
C7—N1—H1N111.3 (12)C14—C13—C12120.4 (2)
C8—N2—C10107.00 (13)C14—C13—H13119.8
C8—N2—C7121.77 (14)C12—C13—H13119.8
C10—N2—C7130.31 (13)C15—C14—C13119.9 (2)
C8—N3—C9105.11 (13)C15—C14—H14120.1
C2—C1—C6119.58 (17)C13—C14—H14120.1
C2—C1—C8123.45 (16)C14—C15—C16120.0 (2)
C6—C1—C8116.95 (15)C14—C15—H15120.0
C3—C2—C1120.45 (18)C16—C15—H15120.0
C3—C2—H2119.8C15—C16—C11121.0 (2)
C1—C2—H2119.8C15—C16—H16119.5
C2—C3—C4119.45 (19)C11—C16—H16119.5
C2—C3—H3120.3C18—C17—C22118.35 (17)
C4—C3—H3120.3C18—C17—C10120.77 (15)
C5—C4—C3121.25 (19)C22—C17—C10120.86 (16)
C5—C4—H4119.4C19—C18—C17120.77 (18)
C3—C4—H4119.4C19—C18—H18119.6
C4—C5—C6119.91 (18)C17—C18—H18119.6
C4—C5—H5120.0C20—C19—C18120.3 (2)
C6—C5—H5120.0C20—C19—H19119.9
N1—C6—C5122.29 (16)C18—C19—H19119.9
N1—C6—C1118.19 (17)C19—C20—C21119.91 (19)
C5—C6—C1119.34 (16)C19—C20—H20120.0
N1—C7—N2105.71 (13)C21—C20—H20120.0
N1—C7—C23106.98 (15)C20—C21—C22120.29 (19)
N2—C7—C23112.12 (16)C20—C21—H21119.9
N1—C7—C24112.39 (16)C22—C21—H21119.9
N2—C7—C24107.24 (14)C21—C22—C17120.40 (18)
C23—C7—C24112.28 (17)C21—C22—H22119.8
N3—C8—N2111.56 (15)C17—C22—H22119.8
N3—C8—C1128.48 (15)C7—C23—H23A109.5
N2—C8—C1119.94 (14)C7—C23—H23B109.5
C10—C9—N3111.01 (15)H23A—C23—H23B109.5
C10—C9—C11128.69 (16)C7—C23—H23C109.5
N3—C9—C11120.30 (14)H23A—C23—H23C109.5
C9—C10—N2105.26 (14)H23B—C23—H23C109.5
C9—C10—C17129.91 (16)C7—C24—H24A109.5
N2—C10—C17124.83 (13)C7—C24—H24B109.5
C12—C11—C16118.12 (18)H24A—C24—H24B109.5
C12—C11—C9120.21 (18)C7—C24—H24C109.5
C16—C11—C9121.64 (17)H24A—C24—H24C109.5
C11—C12—C13120.5 (2)H24B—C24—H24C109.5
C6—C1—C2—C30.7 (3)C8—N3—C9—C11179.98 (15)
C8—C1—C2—C3177.47 (17)N3—C9—C10—N21.15 (18)
C1—C2—C3—C40.7 (3)C11—C9—C10—N2178.53 (16)
C2—C3—C4—C51.1 (3)N3—C9—C10—C17178.14 (16)
C3—C4—C5—C60.1 (3)C11—C9—C10—C172.2 (3)
C7—N1—C6—C5150.22 (17)C8—N2—C10—C92.12 (17)
C7—N1—C6—C134.7 (2)C7—N2—C10—C9171.07 (16)
C4—C5—C6—N1176.38 (17)C8—N2—C10—C17177.22 (15)
C4—C5—C6—C11.3 (3)C7—N2—C10—C178.3 (3)
C2—C1—C6—N1176.95 (16)C10—C9—C11—C12146.88 (19)
C8—C1—C6—N11.3 (2)N3—C9—C11—C1232.8 (2)
C2—C1—C6—C51.7 (3)C10—C9—C11—C1635.1 (3)
C8—C1—C6—C5176.58 (15)N3—C9—C11—C16145.22 (17)
C6—N1—C7—N248.1 (2)C16—C11—C12—C131.8 (3)
C6—N1—C7—C23167.78 (17)C9—C11—C12—C13179.87 (18)
C6—N1—C7—C2468.5 (2)C11—C12—C13—C141.4 (3)
C8—N2—C7—N133.2 (2)C12—C13—C14—C150.2 (4)
C10—N2—C7—N1159.28 (15)C13—C14—C15—C161.3 (4)
C8—N2—C7—C23149.38 (16)C14—C15—C16—C110.8 (3)
C10—N2—C7—C2343.1 (2)C12—C11—C16—C150.8 (3)
C8—N2—C7—C2486.93 (18)C9—C11—C16—C15178.78 (17)
C10—N2—C7—C2480.6 (2)C9—C10—C17—C1896.0 (2)
C9—N3—C8—N21.72 (18)N2—C10—C17—C1883.2 (2)
C9—N3—C8—C1176.59 (16)C9—C10—C17—C2282.1 (2)
C10—N2—C8—N32.48 (18)N2—C10—C17—C2298.8 (2)
C7—N2—C8—N3172.58 (14)C22—C17—C18—C191.2 (3)
C10—N2—C8—C1176.00 (14)C10—C17—C18—C19179.27 (16)
C7—N2—C8—C15.9 (2)C17—C18—C19—C201.3 (3)
C2—C1—C8—N38.6 (3)C18—C19—C20—C210.3 (3)
C6—C1—C8—N3169.57 (16)C19—C20—C21—C220.8 (3)
C2—C1—C8—N2169.55 (16)C20—C21—C22—C170.9 (3)
C6—C1—C8—N212.2 (2)C18—C17—C22—C210.1 (3)
C8—N3—C9—C100.32 (18)C10—C17—C22—C21178.20 (16)
Hydrogen-bond geometry (Å, º) top
D—H···AD—HH···AD···AD—H···A
N1—H1N···N3i0.883 (18)2.260 (19)3.133 (2)169.5 (17)
Symmetry code: (i) x, y+3/2, z1/2.
 

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