Literature DB >> 22091155

1,3-Bis(naphthalen-2-ylmeth-yl)-1H-anthra[1,2-d]imidazole-2,6,11(3H)-trione.

Zahra Afrakssou, Youssef Kandri Rodi, Frédéric Capet, El Mokhtar Essassi, Seik Weng Ng.   

Abstract

The title compound, C(37)H(24)N(2)O(3), is a 1H-anthra[2,1-d]imidazole-2,6,11(3H)-trione derivative having naphthyl-methyl substitutents attached to the imidazole N atoms. The anthraquinone part of the mol-ecule is somewhat folded along the the line connecting the carbonyl bonds. The dihedral angle between the two benzene rings is 7.8 (1)°. The two naphthyl systems of the substituents of the imidazole ring are positioned on the same side of the five-membered ring; these are approximately coplanar, the dihedral angle between the napthyl systems being 4.3 (2)°.

Entities:  

Year:  2011        PMID: 22091155      PMCID: PMC3213578          DOI: 10.1107/S1600536811029102

Source DB:  PubMed          Journal:  Acta Crystallogr Sect E Struct Rep Online        ISSN: 1600-5368


Related literature

For the structure of 1,3-dibenzyl-1H-anthra[1,2-d]imidazole-2,6,11(3H)-trione, see: Afrakssou et al. (2011 ▶).

Experimental

Crystal data

C37H24N2O3 M = 544.58 Orthorhombic, a = 8.0901 (1) Å b = 12.8226 (2) Å c = 26.1472 (4) Å V = 2712.41 (7) Å3 Z = 4 Mo Kα radiation μ = 0.09 mm−1 T = 293 K 0.25 × 0.20 × 0.15 mm

Data collection

Bruker X8 APEXII diffractometer 34004 measured reflections 3781 independent reflections 3453 reflections with I > 2σ(I) R int = 0.026

Refinement

R[F 2 > 2σ(F 2)] = 0.044 wR(F 2) = 0.138 S = 1.10 3781 reflections 379 parameters H-atom parameters constrained Δρmax = 0.33 e Å−3 Δρmin = −0.15 e Å−3 Data collection: APEX2 (Bruker, 2008 ▶); cell refinement: SAINT (Bruker, 2008 ▶); data reduction: SAINT; program(s) used to solve structure: SHELXS97 (Sheldrick, 2008 ▶); program(s) used to refine structure: SHELXL97 (Sheldrick, 2008 ▶); molecular graphics: X-SEED (Barbour, 2001 ▶); software used to prepare material for publication: publCIF (Westrip, 2010 ▶). Crystal structure: contains datablock(s) global, I. DOI: 10.1107/S1600536811029102/bt6819sup1.cif Structure factors: contains datablock(s) I. DOI: 10.1107/S1600536811029102/bt6819Isup2.hkl Supplementary material file. DOI: 10.1107/S1600536811029102/bt6819Isup3.cml Additional supplementary materials: crystallographic information; 3D view; checkCIF report
C37H24N2O3F(000) = 1136
Mr = 544.58Dx = 1.334 Mg m3
Orthorhombic, P212121Mo Kα radiation, λ = 0.71073 Å
Hall symbol: P 2ac 2abCell parameters from 9907 reflections
a = 8.0901 (1) Åθ = 2.2–28.1°
b = 12.8226 (2) ŵ = 0.09 mm1
c = 26.1472 (4) ÅT = 293 K
V = 2712.41 (7) Å3Prism, orange
Z = 40.25 × 0.20 × 0.15 mm
Bruker X8 APEXII diffractometer3453 reflections with I > 2σ(I)
Radiation source: fine-focus sealed tubeRint = 0.026
graphiteθmax = 28.3°, θmin = 1.6°
φ and ω scansh = −10→10
34004 measured reflectionsk = −16→17
3781 independent reflectionsl = −34→33
Refinement on F2Primary atom site location: structure-invariant direct methods
Least-squares matrix: fullSecondary atom site location: difference Fourier map
R[F2 > 2σ(F2)] = 0.044Hydrogen site location: inferred from neighbouring sites
wR(F2) = 0.138H-atom parameters constrained
S = 1.10w = 1/[σ2(Fo2) + (0.0817P)2 + 0.4504P] where P = (Fo2 + 2Fc2)/3
3781 reflections(Δ/σ)max = 0.001
379 parametersΔρmax = 0.33 e Å3
0 restraintsΔρmin = −0.15 e Å3
xyzUiso*/Ueq
O10.8235 (3)0.91407 (16)0.22345 (10)0.0663 (6)
O20.2782 (2)0.69294 (15)0.20827 (8)0.0520 (5)
O30.5179 (3)0.31578 (14)0.17289 (9)0.0622 (5)
N10.7325 (3)0.42761 (15)0.19328 (7)0.0405 (4)
N20.4839 (2)0.49636 (14)0.17989 (7)0.0376 (4)
C10.7480 (3)0.53404 (17)0.19934 (8)0.0356 (4)
C20.8853 (3)0.59225 (19)0.21178 (9)0.0415 (5)
H20.98730.56090.21740.050*
C30.8656 (3)0.6996 (2)0.21557 (9)0.0414 (5)
H30.95670.74120.22300.050*
C40.7118 (3)0.74609 (18)0.20846 (8)0.0361 (4)
C50.7031 (3)0.86234 (19)0.21094 (9)0.0427 (5)
C60.5463 (3)0.91261 (18)0.19539 (8)0.0402 (5)
C70.5391 (4)1.02130 (19)0.18900 (9)0.0490 (6)
H70.63291.06190.19430.059*
C80.3913 (4)1.0677 (2)0.17469 (10)0.0555 (7)
H80.38661.13950.17010.067*
C90.2520 (4)1.0085 (2)0.16729 (11)0.0583 (7)
H90.15431.04050.15700.070*
C100.2556 (3)0.9011 (2)0.17499 (10)0.0495 (6)
H100.15990.86170.17110.059*
C110.4040 (3)0.85298 (17)0.18862 (8)0.0392 (5)
C120.4052 (3)0.73869 (18)0.19823 (8)0.0372 (4)
C130.5687 (3)0.68596 (17)0.19743 (8)0.0328 (4)
C140.5893 (3)0.57835 (16)0.19155 (7)0.0327 (4)
C150.5716 (3)0.40268 (18)0.18116 (9)0.0428 (5)
C160.8669 (3)0.35269 (19)0.18985 (10)0.0481 (6)
H16A0.82660.28490.20050.058*
H16B0.95380.37320.21330.058*
C170.9387 (3)0.34343 (17)0.13695 (10)0.0429 (5)
C180.9014 (3)0.40959 (18)0.09759 (10)0.0451 (5)
H180.82930.46480.10340.054*
C190.9701 (3)0.3961 (2)0.04800 (10)0.0484 (6)
C200.9316 (4)0.4642 (3)0.00705 (12)0.0637 (7)
H200.86200.52070.01260.076*
C210.9959 (5)0.4474 (3)−0.04074 (13)0.0794 (10)
H210.97030.4927−0.06740.095*
C221.1008 (5)0.3617 (4)−0.04943 (16)0.0898 (13)
H221.14290.3497−0.08200.108*
C231.1405 (5)0.2970 (3)−0.01072 (16)0.0841 (12)
H231.21020.2410−0.01720.101*
C241.0795 (3)0.3116 (2)0.03943 (13)0.0601 (7)
C251.1201 (4)0.2469 (3)0.08101 (14)0.0707 (9)
H251.19500.19280.07620.085*
C261.0524 (4)0.2618 (2)0.12796 (13)0.0621 (8)
H261.08140.21750.15470.075*
C270.3236 (3)0.49777 (19)0.15322 (9)0.0425 (5)
H27A0.25050.54730.16980.051*
H27B0.27300.42930.15540.051*
C280.3448 (3)0.5277 (2)0.09756 (10)0.0464 (5)
C290.2724 (4)0.6134 (2)0.07760 (12)0.0582 (7)
H290.21120.65690.09880.070*
C300.2880 (4)0.6389 (3)0.02394 (12)0.0637 (8)
C310.2094 (8)0.7273 (4)0.00331 (19)0.1075 (16)
H310.14660.77110.02400.129*
C320.2270 (9)0.7476 (5)−0.0475 (2)0.124 (2)
H320.17830.8069−0.06140.149*
C330.3171 (9)0.6806 (5)−0.07904 (17)0.123 (2)
H330.32230.6946−0.11390.147*
C340.3971 (7)0.5962 (5)−0.06056 (15)0.1035 (15)
H340.46070.5546−0.08200.124*
C350.3817 (5)0.5718 (3)−0.00662 (13)0.0732 (9)
C360.4562 (5)0.4837 (3)0.01427 (14)0.0783 (10)
H360.51830.4397−0.00640.094*
C370.4385 (4)0.4619 (3)0.06506 (12)0.0638 (7)
H370.48890.40280.07860.077*
U11U22U33U12U13U23
O10.0528 (11)0.0477 (10)0.0982 (16)−0.0092 (9)−0.0213 (11)−0.0135 (11)
O20.0314 (8)0.0470 (9)0.0776 (13)−0.0005 (7)0.0068 (8)0.0009 (9)
O30.0635 (12)0.0356 (8)0.0875 (15)−0.0069 (9)−0.0111 (11)0.0065 (9)
N10.0402 (10)0.0359 (9)0.0454 (10)0.0041 (8)−0.0029 (8)0.0030 (7)
N20.0343 (9)0.0368 (9)0.0418 (9)−0.0045 (7)−0.0033 (7)0.0025 (7)
C10.0351 (10)0.0383 (10)0.0333 (9)0.0020 (9)0.0013 (8)0.0009 (8)
C20.0287 (9)0.0492 (12)0.0465 (11)0.0044 (9)−0.0021 (9)−0.0016 (10)
C30.0307 (10)0.0475 (12)0.0459 (11)−0.0054 (9)−0.0031 (9)−0.0048 (10)
C40.0342 (10)0.0396 (10)0.0344 (10)−0.0034 (9)−0.0004 (8)−0.0034 (8)
C50.0413 (12)0.0409 (11)0.0459 (12)−0.0061 (10)−0.0018 (10)−0.0069 (9)
C60.0465 (12)0.0382 (10)0.0360 (10)−0.0002 (10)0.0000 (9)−0.0061 (8)
C70.0627 (15)0.0388 (11)0.0456 (12)−0.0025 (11)0.0005 (11)−0.0051 (9)
C80.0768 (19)0.0363 (11)0.0536 (14)0.0082 (12)−0.0006 (14)−0.0017 (10)
C90.0631 (16)0.0454 (13)0.0666 (16)0.0169 (13)−0.0063 (14)0.0005 (12)
C100.0449 (13)0.0454 (12)0.0582 (14)0.0075 (11)−0.0040 (11)0.0011 (11)
C110.0415 (11)0.0391 (10)0.0372 (11)0.0038 (9)0.0014 (9)−0.0009 (8)
C120.0323 (10)0.0388 (10)0.0406 (10)0.0015 (8)−0.0008 (8)−0.0008 (8)
C130.0290 (9)0.0382 (10)0.0311 (9)−0.0002 (8)0.0012 (7)0.0008 (7)
C140.0310 (9)0.0377 (10)0.0294 (8)−0.0012 (8)−0.0005 (7)0.0007 (7)
C150.0460 (12)0.0374 (10)0.0449 (11)−0.0030 (10)−0.0025 (10)0.0060 (9)
C160.0513 (14)0.0390 (11)0.0540 (14)0.0114 (11)−0.0060 (11)0.0074 (10)
C170.0383 (11)0.0326 (10)0.0578 (13)0.0037 (9)−0.0077 (10)−0.0053 (9)
C180.0432 (12)0.0385 (11)0.0535 (13)0.0080 (10)−0.0014 (10)−0.0052 (9)
C190.0401 (12)0.0501 (13)0.0548 (13)−0.0045 (11)−0.0018 (10)−0.0140 (11)
C200.0662 (18)0.0668 (17)0.0582 (16)−0.0060 (16)0.0029 (14)−0.0079 (13)
C210.083 (2)0.102 (3)0.0535 (16)−0.020 (2)0.0029 (17)−0.0042 (17)
C220.083 (3)0.120 (3)0.066 (2)−0.014 (3)0.018 (2)−0.030 (2)
C230.064 (2)0.096 (3)0.092 (3)0.002 (2)0.016 (2)−0.041 (2)
C240.0433 (13)0.0601 (16)0.0768 (18)−0.0004 (13)0.0029 (13)−0.0247 (14)
C250.0575 (18)0.0581 (17)0.096 (2)0.0236 (15)−0.0032 (17)−0.0215 (17)
C260.0557 (16)0.0442 (13)0.086 (2)0.0194 (13)−0.0112 (15)−0.0067 (13)
C270.0316 (10)0.0443 (11)0.0517 (12)−0.0095 (9)−0.0044 (9)−0.0003 (10)
C280.0399 (11)0.0481 (13)0.0512 (12)−0.0100 (10)−0.0136 (10)0.0003 (10)
C290.0518 (14)0.0605 (16)0.0624 (16)0.0023 (13)−0.0105 (13)−0.0016 (12)
C300.0605 (17)0.0708 (18)0.0599 (16)−0.0016 (16)−0.0144 (14)0.0034 (14)
C310.120 (4)0.115 (4)0.088 (3)0.024 (3)−0.026 (3)0.025 (3)
C320.152 (5)0.144 (4)0.076 (3)0.003 (4)−0.032 (3)0.033 (3)
C330.151 (5)0.164 (5)0.053 (2)−0.019 (5)−0.033 (3)0.028 (3)
C340.113 (4)0.140 (4)0.058 (2)−0.012 (3)−0.014 (2)0.003 (2)
C350.068 (2)0.092 (2)0.0599 (17)−0.0076 (19)−0.0178 (15)−0.0041 (17)
C360.081 (2)0.093 (2)0.0611 (17)0.009 (2)−0.0021 (17)−0.0191 (18)
C370.0654 (18)0.0679 (17)0.0583 (15)0.0064 (16)−0.0097 (14)−0.0098 (13)
O1—C51.223 (3)C18—H180.9300
O2—C121.212 (3)C19—C201.416 (4)
O3—C151.215 (3)C19—C241.417 (4)
N1—C151.377 (3)C20—C211.370 (5)
N1—C11.380 (3)C20—H200.9300
N1—C161.454 (3)C21—C221.407 (6)
N2—C141.388 (3)C21—H210.9300
N2—C151.395 (3)C22—C231.347 (6)
N2—C271.473 (3)C22—H220.9300
C1—C21.377 (3)C23—C241.413 (5)
C1—C141.419 (3)C23—H230.9300
C2—C31.390 (3)C24—C251.406 (5)
C2—H20.9300C25—C261.357 (5)
C3—C41.392 (3)C25—H250.9300
C3—H30.9300C26—H260.9300
C4—C131.420 (3)C27—C281.515 (3)
C4—C51.494 (3)C27—H27A0.9700
C5—C61.480 (4)C27—H27B0.9700
C6—C111.394 (3)C28—C291.350 (4)
C6—C71.405 (3)C28—C371.418 (4)
C7—C81.387 (4)C29—C301.446 (4)
C7—H70.9300C29—H290.9300
C8—C91.373 (4)C30—C351.398 (5)
C8—H80.9300C30—C311.407 (6)
C9—C101.393 (4)C31—C321.362 (7)
C9—H90.9300C31—H310.9300
C10—C111.396 (3)C32—C331.396 (9)
C10—H100.9300C32—H320.9300
C11—C121.487 (3)C33—C341.350 (8)
C12—C131.486 (3)C33—H330.9300
C13—C141.398 (3)C34—C351.450 (5)
C16—C171.505 (4)C34—H340.9300
C16—H16A0.9700C35—C361.392 (6)
C16—H16B0.9700C36—C371.365 (5)
C17—C181.368 (3)C36—H360.9300
C17—C261.413 (3)C37—H370.9300
C18—C191.421 (4)
C15—N1—C1110.01 (19)C19—C18—H18119.2
C15—N1—C16122.6 (2)C20—C19—C18122.0 (2)
C1—N1—C16126.3 (2)C20—C19—C24119.3 (3)
C14—N2—C15109.52 (18)C18—C19—C24118.8 (3)
C14—N2—C27129.50 (19)C21—C20—C19120.6 (3)
C15—N2—C27118.01 (19)C21—C20—H20119.7
C2—C1—N1129.6 (2)C19—C20—H20119.7
C2—C1—C14123.14 (19)C20—C21—C22119.9 (4)
N1—C1—C14107.28 (19)C20—C21—H21120.1
C1—C2—C3117.5 (2)C22—C21—H21120.1
C1—C2—H2121.3C23—C22—C21120.2 (3)
C3—C2—H2121.3C23—C22—H22119.9
C2—C3—C4121.1 (2)C21—C22—H22119.9
C2—C3—H3119.4C22—C23—C24122.2 (4)
C4—C3—H3119.4C22—C23—H23118.9
C3—C4—C13121.6 (2)C24—C23—H23118.9
C3—C4—C5117.6 (2)C25—C24—C23123.9 (3)
C13—C4—C5120.8 (2)C25—C24—C19118.3 (3)
O1—C5—C6121.3 (2)C23—C24—C19117.8 (3)
O1—C5—C4121.0 (2)C26—C25—C24121.5 (3)
C6—C5—C4117.6 (2)C26—C25—H25119.3
C11—C6—C7119.7 (2)C24—C25—H25119.3
C11—C6—C5120.3 (2)C25—C26—C17121.1 (3)
C7—C6—C5120.0 (2)C25—C26—H26119.4
C8—C7—C6119.5 (3)C17—C26—H26119.4
C8—C7—H7120.2N2—C27—C28111.01 (19)
C6—C7—H7120.2N2—C27—H27A109.4
C9—C8—C7120.6 (2)C28—C27—H27A109.4
C9—C8—H8119.7N2—C27—H27B109.4
C7—C8—H8119.7C28—C27—H27B109.4
C8—C9—C10120.6 (3)H27A—C27—H27B108.0
C8—C9—H9119.7C29—C28—C37119.0 (3)
C10—C9—H9119.7C29—C28—C27121.9 (3)
C11—C10—C9119.5 (3)C37—C28—C27119.1 (2)
C11—C10—H10120.3C28—C29—C30121.5 (3)
C9—C10—H10120.3C28—C29—H29119.3
C6—C11—C10120.1 (2)C30—C29—H29119.3
C6—C11—C12120.9 (2)C35—C30—C31121.5 (4)
C10—C11—C12119.0 (2)C35—C30—C29117.5 (3)
O2—C12—C13122.5 (2)C31—C30—C29121.0 (4)
O2—C12—C11120.5 (2)C32—C31—C30118.7 (6)
C13—C12—C11116.9 (2)C32—C31—H31120.6
C14—C13—C4117.43 (19)C30—C31—H31120.6
C14—C13—C12123.84 (19)C31—C32—C33120.9 (5)
C4—C13—C12118.40 (18)C31—C32—H32119.6
N2—C14—C13134.28 (19)C33—C32—H32119.6
N2—C14—C1106.53 (17)C34—C33—C32122.2 (4)
C13—C14—C1119.17 (19)C34—C33—H33118.9
O3—C15—N1126.2 (2)C32—C33—H33118.9
O3—C15—N2127.1 (2)C33—C34—C35118.7 (5)
N1—C15—N2106.64 (19)C33—C34—H34120.7
N1—C16—C17113.45 (19)C35—C34—H34120.7
N1—C16—H16A108.9C30—C35—C36120.7 (3)
C17—C16—H16A108.9C30—C35—C34118.0 (4)
N1—C16—H16B108.9C36—C35—C34121.3 (4)
C17—C16—H16B108.9C37—C36—C35120.2 (3)
H16A—C16—H16B107.7C37—C36—H36119.9
C18—C17—C26118.5 (3)C35—C36—H36119.9
C18—C17—C16123.9 (2)C36—C37—C28121.1 (3)
C26—C17—C16117.6 (2)C36—C37—H37119.4
C17—C18—C19121.7 (2)C28—C37—H37119.4
C17—C18—H18119.2
C15—N1—C1—C2179.5 (2)C1—N1—C15—N2−0.3 (3)
C16—N1—C1—C2−11.8 (4)C16—N1—C15—N2−169.48 (19)
C15—N1—C1—C141.0 (3)C14—N2—C15—O3180.0 (3)
C16—N1—C1—C14169.6 (2)C27—N2—C15—O3−17.6 (4)
N1—C1—C2—C3−179.8 (2)C14—N2—C15—N1−0.5 (2)
C14—C1—C2—C3−1.5 (3)C27—N2—C15—N1161.88 (19)
C1—C2—C3—C41.8 (3)C15—N1—C16—C1784.1 (3)
C2—C3—C4—C130.5 (3)C1—N1—C16—C17−83.2 (3)
C2—C3—C4—C5−177.3 (2)N1—C16—C17—C189.9 (4)
C3—C4—C5—O1−6.7 (4)N1—C16—C17—C26−170.7 (2)
C13—C4—C5—O1175.5 (2)C26—C17—C18—C191.9 (4)
C3—C4—C5—C6170.6 (2)C16—C17—C18—C19−178.6 (2)
C13—C4—C5—C6−7.3 (3)C17—C18—C19—C20179.8 (3)
O1—C5—C6—C11−170.5 (2)C17—C18—C19—C240.2 (4)
C4—C5—C6—C1112.3 (3)C18—C19—C20—C21−178.1 (3)
O1—C5—C6—C77.5 (4)C24—C19—C20—C211.6 (5)
C4—C5—C6—C7−169.7 (2)C19—C20—C21—C220.2 (5)
C11—C6—C7—C8−1.7 (4)C20—C21—C22—C23−1.1 (6)
C5—C6—C7—C8−179.7 (2)C21—C22—C23—C240.2 (6)
C6—C7—C8—C90.7 (4)C22—C23—C24—C25−178.9 (4)
C7—C8—C9—C101.3 (4)C22—C23—C24—C191.6 (5)
C8—C9—C10—C11−2.3 (4)C20—C19—C24—C25178.0 (3)
C7—C6—C11—C100.7 (3)C18—C19—C24—C25−2.3 (4)
C5—C6—C11—C10178.7 (2)C20—C19—C24—C23−2.4 (4)
C7—C6—C11—C12−176.2 (2)C18—C19—C24—C23177.3 (3)
C5—C6—C11—C121.8 (3)C23—C24—C25—C26−177.1 (3)
C9—C10—C11—C61.3 (4)C19—C24—C25—C262.4 (5)
C9—C10—C11—C12178.2 (2)C24—C25—C26—C17−0.3 (5)
C6—C11—C12—O2156.5 (2)C18—C17—C26—C25−1.9 (4)
C10—C11—C12—O2−20.5 (3)C16—C17—C26—C25178.6 (3)
C6—C11—C12—C13−20.6 (3)C14—N2—C27—C2867.3 (3)
C10—C11—C12—C13162.5 (2)C15—N2—C27—C28−91.0 (2)
C3—C4—C13—C14−3.0 (3)N2—C27—C28—C29−119.1 (3)
C5—C4—C13—C14174.77 (19)N2—C27—C28—C3763.1 (3)
C3—C4—C13—C12170.7 (2)C37—C28—C29—C300.3 (4)
C5—C4—C13—C12−11.5 (3)C27—C28—C29—C30−177.5 (3)
O2—C12—C13—C1421.4 (3)C28—C29—C30—C35−0.3 (5)
C11—C12—C13—C14−161.59 (19)C28—C29—C30—C31178.7 (4)
O2—C12—C13—C4−151.9 (2)C35—C30—C31—C32−0.6 (7)
C11—C12—C13—C425.1 (3)C29—C30—C31—C32−179.6 (5)
C15—N2—C14—C13−177.5 (2)C30—C31—C32—C331.9 (9)
C27—N2—C14—C1322.8 (4)C31—C32—C33—C34−3.3 (10)
C15—N2—C14—C11.1 (2)C32—C33—C34—C353.1 (9)
C27—N2—C14—C1−158.6 (2)C31—C30—C35—C36−178.9 (4)
C4—C13—C14—N2−178.4 (2)C29—C30—C35—C360.1 (5)
C12—C13—C14—N28.3 (4)C31—C30—C35—C340.5 (6)
C4—C13—C14—C13.2 (3)C29—C30—C35—C34179.5 (4)
C12—C13—C14—C1−170.13 (19)C33—C34—C35—C30−1.7 (7)
C2—C1—C14—N2−179.9 (2)C33—C34—C35—C36177.6 (5)
N1—C1—C14—N2−1.3 (2)C30—C35—C36—C370.0 (6)
C2—C1—C14—C13−1.1 (3)C34—C35—C36—C37−179.3 (4)
N1—C1—C14—C13177.57 (18)C35—C36—C37—C280.0 (6)
C1—N1—C15—O3179.2 (2)C29—C28—C37—C36−0.1 (5)
C16—N1—C15—O310.0 (4)C27—C28—C37—C36177.7 (3)
  2 in total

1.  A short history of SHELX.

Authors:  George M Sheldrick
Journal:  Acta Crystallogr A       Date:  2007-12-21       Impact factor: 2.290

2.  1,3-Dibenzyl-1H-anthra[1,2-d]imidazole-2,6,11(3H)-trione.

Authors:  Zahra Afrakssou; Youssef Kandri Rodi; Frédéric Capet; El Mokhtar Essassi; Lahcen El Ammari
Journal:  Acta Crystallogr Sect E Struct Rep Online       Date:  2011-04-29
  2 in total

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