Literature DB >> 21579415

Bis[4-(diphenyl-methyl-eneamino)phen-yl]methanone.

Sylvain Bernès, Guadalupe Hernández, Roberto Portillo, Sandra Cruz, René Gutiérrez.   

Abstract

The title mol-ecule, C(39)H(28)N(2)O, is a well known dendron used in the synthesis of phenyl-azomethine dendrimers. The central benzophenone core is twisted, as expected, due to hindrance between H atoms: the dihedral angle between core benzene rings is 54.49 (5)°, identical to that of the stable polymorph of benzophenone (56°). For the same reason, phenyl groups substituting imine C atoms make a large dihedral angle, although similar for each imine: 71.83 (6) and 67.64 (5)°. The six aromatic rings in the mol-ecule thus seem to be quite randomly oriented, and such an arrangement is not favorable for efficient stacking inter-actions in the crystal. The same behaviour is observed in the vast majority of diphenyl-imino-containing organics. The low triclinic crystal symmetry may be a consequence of these features.

Entities:  

Year:  2010        PMID: 21579415      PMCID: PMC2979505          DOI: 10.1107/S1600536810016375

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


Related literature

For the use of the title mol­ecule in the synthesis of dendritic systems, see: Higuchi et al. (2001 ▶); Takanashi et al. (2004 ▶); Yamamoto & Higuchi (2004 ▶). For the structure of benzophenone, see: Fleischer et al. (1968 ▶); Kutzke et al. (2000 ▶). For related structures including the diphenyl­imino fragment, see: Appel et al. (1985 ▶); Buhmann et al. (1993 ▶). For geometrical analysis using the Cambridge Structural Database, see: Bruno et al. (2002 ▶).

Experimental

Crystal data

C39H28N2O M = 540.63 Triclinic, a = 11.1723 (10) Å b = 11.3487 (13) Å c = 13.2331 (15) Å α = 103.121 (9)° β = 105.170 (8)° γ = 108.746 (8)° V = 1441.9 (3) Å3 Z = 2 Mo Kα radiation μ = 0.08 mm−1 T = 296 K 0.55 × 0.28 × 0.24 mm

Data collection

Bruker P4 diffractometer 6892 measured reflections 5865 independent reflections 4471 reflections with I > 2σ(I) R int = 0.018 3 standard reflections every 97 reflections intensity decay: 1%

Refinement

R[F 2 > 2σ(F 2)] = 0.042 wR(F 2) = 0.113 S = 1.03 5865 reflections 380 parameters H-atom parameters constrained Δρmax = 0.19 e Å−3 Δρmin = −0.14 e Å−3 Data collection: XSCANS (Siemens, 1996 ▶); cell refinement: XSCANS; data reduction: XSCANS; program(s) used to solve structure: SHELXS97 (Sheldrick, 2008 ▶); program(s) used to refine structure: SHELXL97 (Sheldrick, 2008 ▶); molecular graphics: Mercury (Macrae et al., 2008 ▶); software used to prepare material for publication: SHELXL97 . Crystal structure: contains datablocks I, global. DOI: 10.1107/S1600536810016375/fl2303sup1.cif Structure factors: contains datablocks I. DOI: 10.1107/S1600536810016375/fl2303Isup2.hkl Additional supplementary materials: crystallographic information; 3D view; checkCIF report
C39H28N2OZ = 2
Mr = 540.63F(000) = 568
Triclinic, P1Dx = 1.245 Mg m3
Hall symbol: -P 1Mo Kα radiation, λ = 0.71073 Å
a = 11.1723 (10) ÅCell parameters from 82 reflections
b = 11.3487 (13) Åθ = 4.6–12.5°
c = 13.2331 (15) ŵ = 0.08 mm1
α = 103.121 (9)°T = 296 K
β = 105.170 (8)°Prism, yellow
γ = 108.746 (8)°0.55 × 0.28 × 0.24 mm
V = 1441.9 (3) Å3
Bruker P4 diffractometerRint = 0.018
Radiation source: fine-focus sealed tubeθmax = 26.4°, θmin = 2.0°
graphiteh = −13→2
2θ/ω scansk = −13→13
6892 measured reflectionsl = −16→16
5865 independent reflections3 standard reflections every 97 reflections
4471 reflections with I > 2σ(I) intensity decay: 1%
Refinement on F2Secondary atom site location: difference Fourier map
Least-squares matrix: fullHydrogen site location: inferred from neighbouring sites
R[F2 > 2σ(F2)] = 0.042H-atom parameters constrained
wR(F2) = 0.113w = 1/[σ2(Fo2) + (0.0461P)2 + 0.275P] where P = (Fo2 + 2Fc2)/3
S = 1.03(Δ/σ)max < 0.001
5865 reflectionsΔρmax = 0.19 e Å3
380 parametersΔρmin = −0.14 e Å3
0 restraintsExtinction correction: SHELXL97 (Sheldrick, 2008), Fc*=kFc[1+0.001xFc2λ3/sin(2θ)]-1/4
0 constraintsExtinction coefficient: 0.0198 (18)
Primary atom site location: structure-invariant direct methods
xyzUiso*/Ueq
C10.81457 (15)0.23158 (15)0.66331 (12)0.0425 (3)
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H3A0.79020.22240.45990.051*
C40.63532 (15)0.27069 (15)0.39873 (12)0.0407 (3)
H4A0.64590.26730.33090.049*
C50.53212 (14)0.30355 (13)0.42020 (11)0.0373 (3)
C60.51690 (15)0.30587 (15)0.52197 (12)0.0424 (3)
H6A0.44860.32700.53810.051*
C70.60322 (15)0.27683 (15)0.59917 (12)0.0416 (3)
H7A0.59140.27790.66630.050*
N80.46589 (12)0.34758 (12)0.33981 (10)0.0419 (3)
C90.34487 (14)0.34189 (13)0.31471 (11)0.0374 (3)
C100.30371 (14)0.40362 (14)0.23057 (12)0.0395 (3)
C110.39664 (17)0.46820 (17)0.18792 (13)0.0505 (4)
H11A0.48340.46960.20980.061*
C120.3613 (2)0.5302 (2)0.11344 (15)0.0614 (5)
H12A0.42450.57320.08580.074*
C130.23276 (19)0.52870 (18)0.07989 (14)0.0585 (4)
H13A0.20940.57120.03040.070*
C140.14043 (18)0.46438 (19)0.11986 (15)0.0614 (5)
H14A0.05340.46220.09680.074*
C150.17516 (16)0.40203 (17)0.19474 (14)0.0536 (4)
H15A0.11090.35850.22120.064*
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H19A−0.00650.12140.48080.066*
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H20A0.0454−0.00830.35270.069*
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H21A0.20150.08900.27920.057*
C220.78337 (15)0.17280 (14)0.74811 (12)0.0404 (3)
C230.89013 (16)0.20074 (16)0.84510 (13)0.0475 (4)
H23A0.97650.26090.85780.057*
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H26A0.5500−0.04200.79440.056*
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H27A0.58200.06420.66830.054*
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H31A0.7576−0.20601.04050.070*
C320.7397 (2)−0.2648 (2)1.17030 (18)0.0717 (6)
H32A0.7527−0.34191.14650.086*
C330.7174 (2)−0.23299 (19)1.26838 (16)0.0657 (5)
H33A0.7156−0.28831.31070.079*
C340.69800 (19)−0.11972 (19)1.30364 (15)0.0598 (5)
H34A0.6823−0.09851.36970.072*
C350.70164 (16)−0.03645 (16)1.24098 (13)0.0487 (4)
H35A0.68860.04041.26540.058*
C360.74461 (14)0.15897 (14)1.12429 (12)0.0386 (3)
C370.85587 (15)0.24739 (15)1.21870 (13)0.0452 (3)
H37A0.91950.21891.25340.054*
C380.8732 (2)0.37737 (17)1.26174 (15)0.0577 (4)
H38A0.94990.43671.32320.069*
C390.7766 (2)0.41837 (19)1.21333 (17)0.0657 (5)
H39A0.78790.50561.24230.079*
C400.6634 (2)0.3310 (2)1.12217 (16)0.0655 (5)
H40A0.59730.35881.09110.079*
C410.64726 (18)0.20148 (18)1.07617 (14)0.0513 (4)
H41A0.57160.14341.01340.062*
U11U22U33U12U13U23
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C50.0350 (7)0.0376 (7)0.0397 (7)0.0130 (6)0.0138 (6)0.0161 (6)
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C20—H20A0.9300
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C15—C10—C9121.89 (13)C32—C31—C30120.19 (17)
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C12—C11—C10120.72 (15)C30—C31—H31A119.9
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C10—C11—H11A119.6C33—C32—H32A119.7
C13—C12—C11120.39 (16)C31—C32—H32A119.7
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C18—C17—H17A119.9C39—C38—H38A120.1
C19—C18—C17120.25 (15)C37—C38—H38A120.1
C19—C18—H18A119.9C38—C39—C40120.28 (17)
C17—C18—H18A119.9C38—C39—H39A119.9
C20—C19—C18119.98 (15)C40—C39—H39A119.9
C20—C19—H19A120.0C39—C40—C41120.41 (17)
C18—C19—H19A120.0C39—C40—H40A119.8
C19—C20—C21120.12 (16)C41—C40—H40A119.8
C19—C20—H20A119.9C40—C41—C36119.79 (17)
C21—C20—H20A119.9C40—C41—H41A120.1
C16—C21—C20120.60 (15)C36—C41—H41A120.1
C16—C21—H21A119.7
O1—C1—C2—C7−144.52 (16)O1—C1—C22—C27−152.96 (16)
C22—C1—C2—C736.0 (2)C2—C1—C22—C2726.6 (2)
O1—C1—C2—C328.0 (2)O1—C1—C22—C2321.4 (2)
C22—C1—C2—C3−151.51 (14)C2—C1—C22—C23−159.09 (14)
C7—C2—C3—C40.3 (2)C27—C22—C23—C240.2 (2)
C1—C2—C3—C4−172.64 (14)C1—C22—C23—C24−174.49 (14)
C2—C3—C4—C50.7 (2)C22—C23—C24—C251.0 (3)
C3—C4—C5—C6−1.0 (2)C23—C24—C25—C26−0.7 (2)
C3—C4—C5—N8171.19 (13)C23—C24—C25—N28170.63 (14)
C4—C5—C6—C70.4 (2)C24—C25—C26—C27−0.8 (2)
N8—C5—C6—C7−170.67 (14)N28—C25—C26—C27−172.23 (14)
C5—C6—C7—C20.6 (2)C25—C26—C27—C222.0 (2)
C3—C2—C7—C6−0.9 (2)C23—C22—C27—C26−1.7 (2)
C1—C2—C7—C6171.58 (14)C1—C22—C27—C26172.67 (14)
C4—C5—N8—C9154.35 (15)C26—C25—N28—C29−115.96 (18)
C6—C5—N8—C9−34.3 (2)C24—C25—N28—C2972.8 (2)
C5—N8—C9—C10176.47 (13)C25—N28—C29—C30−173.82 (14)
C5—N8—C9—C16−4.1 (2)C25—N28—C29—C366.7 (2)
N8—C9—C10—C15178.78 (15)N28—C29—C30—C35−165.71 (15)
C16—C9—C10—C15−0.7 (2)C36—C29—C30—C3513.8 (2)
N8—C9—C10—C11−3.0 (2)N28—C29—C30—C3114.9 (2)
C16—C9—C10—C11177.57 (14)C36—C29—C30—C31−165.62 (15)
C15—C10—C11—C121.0 (2)C35—C30—C31—C32−0.7 (3)
C9—C10—C11—C12−177.38 (15)C29—C30—C31—C32178.75 (17)
C10—C11—C12—C13−0.2 (3)C30—C31—C32—C330.4 (3)
C11—C12—C13—C14−0.7 (3)C31—C32—C33—C340.2 (3)
C12—C13—C14—C150.7 (3)C32—C33—C34—C35−0.4 (3)
C11—C10—C15—C14−0.9 (3)C31—C30—C35—C340.4 (2)
C9—C10—C15—C14177.43 (16)C29—C30—C35—C34−179.01 (15)
C13—C14—C15—C100.0 (3)C33—C34—C35—C300.1 (3)
N8—C9—C16—C21−72.1 (2)N28—C29—C36—C37−120.14 (17)
C10—C9—C16—C21107.31 (16)C30—C29—C36—C3760.38 (18)
N8—C9—C16—C17107.75 (18)N28—C29—C36—C4158.6 (2)
C10—C9—C16—C17−72.83 (18)C30—C29—C36—C41−120.93 (15)
C21—C16—C17—C181.6 (2)C41—C36—C37—C38−2.8 (2)
C9—C16—C17—C18−178.23 (14)C29—C36—C37—C38175.92 (14)
C16—C17—C18—C19−1.0 (2)C36—C37—C38—C392.6 (2)
C17—C18—C19—C20−0.3 (3)C37—C38—C39—C40−0.3 (3)
C18—C19—C20—C211.0 (3)C38—C39—C40—C41−1.8 (3)
C17—C16—C21—C20−0.9 (2)C39—C40—C41—C361.6 (3)
C9—C16—C21—C20178.93 (15)C37—C36—C41—C400.7 (2)
C19—C20—C21—C16−0.4 (3)C29—C36—C41—C40−178.01 (14)
  5 in total

1.  New software for searching the Cambridge Structural Database and visualizing crystal structures.

Authors:  Ian J Bruno; Jason C Cole; Paul R Edgington; Magnus Kessler; Clare F Macrae; Patrick McCabe; Jonathan Pearson; Robin Taylor
Journal:  Acta Crystallogr B       Date:  2002-05-29

2.  A short history of SHELX.

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

3.  Metastable beta-phase of benzophenone: independent structure determinations via X-ray powder diffraction and single crystal studies

Authors: 
Journal:  Acta Crystallogr B       Date:  2000-06

4.  First synthesis of phenylazomethine dendrimer ligands and structural studies.

Authors:  M Higuchi; S Shiki; K Ariga; K Yamamoto
Journal:  J Am Chem Soc       Date:  2001-05-16       Impact factor: 15.419

5.  Efficient synthesis of poly(phenylazomethine) dendrons allowing access to higher generation dendrimers.

Authors:  Kensaku Takanashi; Hiroshi Chiba; Masayoshi Higuchi; Kimihisa Yamamoto
Journal:  Org Lett       Date:  2004-05-27       Impact factor: 6.005

  5 in total
  2 in total

1.  (S)-(+)-N-Benzyl-idene-1-(1-naphth-yl)ethyl-amine.

Authors:  Sylvain Bernès; Guadalupe Hernández; Jaime Vázquez; Alejandra Tovar; René Gutiérrez
Journal:  Acta Crystallogr Sect E Struct Rep Online       Date:  2011-04-29

2.  (+)-(S)-N-[(1-Benzo-thio-phen-2-yl)methyl-idene]-1-(naphthalen-1-yl)ethyl-amine.

Authors:  Guadalupe Hernández-Téllez; Oscar Portillo-Moreno; René Gutiérrez; Francisco J Rios-Merino; Angel Mendoza
Journal:  Acta Crystallogr Sect E Struct Rep Online       Date:  2013-08-31
  2 in total

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