Literature DB >> 25484722

Crystal structure of 1-(2-fluoro-benzo-yl)-2,7-di-meth-oxy-naphthalene.

Saki Mohri1, Shinji Ohisa1, Takehiro Tsumuki1, Noriyuki Yonezawa1, Akiko Okamoto1.   

Abstract

The asymmetric unit of the compound, C19H15FO3, contains two independent molecules. Each molecule has essentially the same feature of non-coplanarly accumulated aromatic rings whereby the aroyl group at the 1-position of the naphthalene ring system is twisted almost perpendicularly to the ring system [dihedral angles of 86.52 (8) and 89.66 (8)°]. In the crystal structure, mol-ecules of the same conformer are stacked into columns parallel to the a axis by van der Waals inter-actions only.

Entities:  

Keywords:  1-aroyl­naphthalene compound; crystal structure; non-coplanarly accumulated aromatic rings structure; spatial organization

Year:  2014        PMID: 25484722      PMCID: PMC4257270          DOI: 10.1107/S1600536814020807

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


Chemical context

Compounds with non-coplanarly accumulated aromatic rings have received attention as unique structural building blocks from organic chemists and materials chemists, because they provide characteristic optical and electronic properties originating from their structural features. For example, biphenyl and binaphthyl are applied to optically active mol­ecular catalysts and polymer materials on the basis of their axial chiralities (Pravas et al., 2013 ▶). In the course of our study on selective electrophilic aromatic aroylation of 2,7-di­meth­oxy­naph­thalene, it was found that peri-aroyl­naphthalene compounds are formed regioselectively with the aid of suitable acidic mediators (Okamoto & Yonezawa, 2009 ▶; Okamoto et al., 2012 ▶). The X-ray analyses of peri-aroyl­naphthalene compounds revealed that the aroyl groups at the 1- and 8-positions of the naphthalene ring systems are connected almost perpendicularly but the benzene rings of the aroyl groups tilt slightly toward the exo sides of the naphthalene ring systems, as observed in 1,8-dibenzoyl-2,7-di­meth­oxy­naphthalene (Nakaema et al., 2008 ▶) and (2,7-di­meth­oxy­naphthalene-1,8-di­yl)bis­(4-fluoro­benzo­yl)di­meth­an­one (Wat­anabe et al., 2010 ▶). Moreover, the homologous 1-(4-substituted benzo­yl)naphthalenes also have essentially the same non-coplanar structure of the corresponding 1,8-diaroylated naphthalenes, e.g. (2,7-di­meth­oxy­naphthalen-1-yl)(phen­yl)methanone (Kato et al., 2010 ▶) and (2,7-di­meth­oxy­naphthalen-1-yl)(4-fluoro­phen­yl)methanone (Watan­abe et al., 2011 ▶). On the other hand, dynamic NMR study has clarified the difference between 1-benzoyl­ated and 1,8-di­benzoyl­ated naphthalene (Okamoto et al., 2011 ▶). In solution, the carboncarbon bond rotation involving the benzoyl group and the naphthalene ring system in 1,8-dibenzoyl-2,7-di­meth­oxy­naphthalene is rather restricted, whereas the spatial organization of 1-benzoyl-2,7-di­meth­oxy­naphthalene changes flexibly through the bond rotation. As part of our study on the mol­ecular structures of this kind of homologous mol­ecules, the crystal structure of title compound, a 1-benzoyl­ated naphthalene bearing the fluoro group at the 2-position of the benzoyl moiety, is discussed in this paper.

Structural commentary

There are two independent conformers in the asymmetric unit of the title compound. The independent conformers (A and B) are shown in Fig. 1 ▶. Each conformer has essentially the same non-coplanar structure. However, the orientation of the 2-fluoro­phenyl group against the naphthalene ring system is different in conformer (A) and (B), i.e., exo-side for conformer (A) and endo-side for conformer (B). The dihedral angle between the naphthalene ring system and the benzene ring of the 2-fluoro­benzoyl group is 86.52 (8) for conformer A and 89.66 (8)° for B. Bond distances and angles are not unusual.
Figure 1

The mol­ecular structure of the two conformers of the title compound, with displacement ellipsoids drawn at the 50% probability level.

Supra­molecular features

In the crystal structure, mol­ecules of the same conformer are stacked along the a axis through weak van der Waals inter­actions into a columnar array (Fig. 2 ▶). No hydrogen bonds or π–π stacking inter­actions are observed. Intra- and inter­columnar C—H⋯π contacts with an H⋯π(centroid) separation slightly shorter than 3 Å are present (H32⋯Cg1 = 2.97; H16⋯Cg2i = 2.94; H35⋯Cg3i = 2.90 Å; Cg1, Cg2 and Cg3 are the centroids of the C12–C17, C1–C6, and C24–C29 rings, respectively; symmetry code: (i) 1-x, −y, −z), but their significance as structure-directing inter­actions is doubtful.
Figure 2

Crystal packing of the title compound viewed along the b axis. Conformers A and B are drawn in purple and blue, respectively.

Database survey

A search of the Cambridge Structural Database (Version 5.35, last update May 2014; Allen, 2002 ▶) showed 19 and 12 structures containing the 1-substituted-2,7-di­alk­oxy­naphthalene (including 1-acetyl­naphthalene) and 1-aroyl-2,7-di­alk­oxy­naphthalene units, respectively. The title compound has a non-coplanarly accumulated aromatic ring structure, as found in the fluoro-group-free 1-benzoyl­naphthalene homologues and the fluoro-group-bearing 1-benzoyl­naphthalene homologue, viz. 1-benzoyl-2,7-di­meth­oxy­naphthalene (Kato et al., 2010 ▶) and 1-(4-fluoro­benzo­yl)-2,7-di­meth­oxy­naphthalene (Watanabe et al., 2011 ▶). Both homologues form a columnar structure via C–H⋯O=C hydrogen bonds. In the case of the fluoro-group-free homologue, three conformers are found, each of them forming a columnar structure via C–H⋯O=C hydrogen bonds. The title compound forms a columnar structure similar to the homologues without C—H⋯O=C interactions in the crystal. Therefore, 1-benzoylnaphthalene homologues might be susceptible to form the columnar structure. The C—H⋯O=C hydrogen bonds plausibly contribute to pack the molecules densely within the column, as indicated by the densities of the title compound (1342 Mg m−3) and the 4-fluorobenzoyl group-bearing homologue (1.351 Mg m−3). However, the number of conformers seems to afford a larger influence on the whole of the crystal packing. When several types of conformer are formed, intracolumnar interactions should be enhanced. In other words, intercolumnar interactions relatively weaken compared with the intracolumnar interactions. Consequently, the densities are apparently different between the title compound and the fluoro-group-free homologue (1.276 Mg m−3).

Synthesis and crystallization

To a test-tube-type flask, 2-fluoro­benzoyl chloride (1.1 mmol, 0.130 ml), aluminium chloride (AlCl3; 1.3 mmo1, 0.173 g), and methyl­enechloride (CH2Cl2; 2.0 ml) were placed and stirred at 273 K. To the reaction mixture thus obtained 2,7-di­meth­oxy­naphthalene (1.0 mmol, 0.188 g) was added. After the reaction mixture had been stirred at 273 K for 4 h, it was poured into methanol (10 ml) and water (20 ml) and the mixture was extracted with CHCl3 (10 ml × 3). The combined extracts were washed with aqueous 2M NaOH followed by washing with brine. The organic layers obtained were dried over anhydrous MgSO4. The solvent was removed under reduced pressure to give a cake. The crude product was purified by recrystallization from hexane (isolated yield 63%). Single crystals suitable for X-ray analysis were obtained from the isolated product by slow evaporation of a CHCl3/hexane (1:3 v/v) solution. 1H NMR δ (300 MHz, CDCl3): 3.75 (3H, s), 3.78 (3H, s), 7.07 (4H, m), 7.19 (1H, t, J = 7.6 Hz), 7.51 (1H, m), 7.74 (2H, m), 7.86 (1H, d, J = 8.7 Hz) p.p.m. 13C NMR δ (75 MHz, CDCl3): 31.19, 31.23, 53.95, 55.30, 56.47, 60.94, 76.71, 77.13, 77.55, 102.05, 110.37, 116.84, 117.25, 124.19, 124.24, 124.60, 129.83, 131.49, 131.87, 134.41, 155.94, 159.30, 159.97, 163.40, 194.56 p.p.m. IR (KBr): 1668 (C=O), 1605, 1511, 1479 (Ar, naphthalene), 1233 (=C—O—C) cm−1. HRMS (m/z): [M + H]+ Calculated for C19H15FO3, 310.1042; found, 310.1005; m.p. = 365.2–365.7 K.

Refinement

Crystal data, data collection and structure refinement details are summarized in Table 1 ▶. All H atoms were located in a difference Fourier map and were subsequently refined as riding atoms, with C—H = 0.95–0.98 Å, and with U iso(H) = 1.2 U eq(C). The positions of methyl H atoms were rotationally optimized.
Table 1

Experimental details

Crystal data
Chemical formulaC19H15FO3
M r 310.31
Crystal system, space groupMonoclinic, P21/n
Temperature (K)193
a, b, c ()8.36074(15), 15.5479(3), 23.6898(4)
()94.163(1)
V (3)3071.36(10)
Z 8
Radiation typeCu K
(mm1)0.82
Crystal size (mm)0.50 0.30 0.20
 
Data collection
DiffractometerRigaku R-AXIS RAPID
Absorption correctionNumerical (NUMABS; Higashi, 1999)
T min, T max 0.686, 0.854
No. of measured, independent and observed [I > 2(I)] reflections54661, 5600, 4226
R int 0.032
(sin /)max (1)0.602
 
Refinement
R[F 2 > 2(F 2)], wR(F 2), S 0.043, 0.125, 1.04
No. of reflections5600
No. of parameters420
H-atom treatmentH-atom parameters constrained
max, min (e 3)0.29, 0.20

Computer programs: PROCESS-AUTO (Rigaku, 1998 ▶), CrystalStructure (Rigaku, 2010 ▶), SIR2004 (Burla et al., 2007 ▶), SHELXL97 (Sheldrick, 2008 ▶) and ORTEPIII (Burnett Johnson, 1996 ▶).

Crystal structure: contains datablock(s) I. DOI: 10.1107/S1600536814020807/rz5132sup1.cif Structure factors: contains datablock(s) I. DOI: 10.1107/S1600536814020807/rz5132Isup2.hkl Supporting information file. DOI: 10.1107/S1600536814020807/rz5132Isup3.pdf Supporting information file. DOI: 10.1107/S1600536814020807/rz5132Isup4.pdf Supporting information file. DOI: 10.1107/S1600536814020807/rz5132Isup5.pdf Supporting information file. DOI: 10.1107/S1600536814020807/rz5132Isup6.pdf Click here for additional data file. Supporting information file. DOI: 10.1107/S1600536814020807/rz5132Isup7.cml CCDC reference: 1024598 Additional supporting information: crystallographic information; 3D view; checkCIF report
C19H15FO3F(000) = 1296
Mr = 310.31Dx = 1.342 Mg m3
Monoclinic, P21/nCu Kα radiation, λ = 1.54187 Å
Hall symbol: -P 2ynCell parameters from 43860 reflections
a = 8.36074 (15) Åθ = 3.4–68.2°
b = 15.5479 (3) ŵ = 0.82 mm1
c = 23.6898 (4) ÅT = 193 K
β = 94.163 (1)°Block, colorless
V = 3071.36 (10) Å30.50 × 0.30 × 0.20 mm
Z = 8
Rigaku R-AXIS RAPID diffractometer5600 independent reflections
Radiation source: fine-focus sealed tube4226 reflections with I > 2σ(I)
Graphite monochromatorRint = 0.032
Detector resolution: 10.000 pixels mm-1θmax = 68.2°, θmin = 3.4°
ω scansh = −9→9
Absorption correction: numerical (NUMABS; Higashi, 1999)k = −18→18
Tmin = 0.686, Tmax = 0.854l = −28→28
54661 measured reflections
Refinement on F2Secondary atom site location: difference Fourier map
Least-squares matrix: fullHydrogen site location: inferred from neighbouring sites
R[F2 > 2σ(F2)] = 0.043H-atom parameters constrained
wR(F2) = 0.125w = 1/[σ2(Fo2) + (0.0592P)2 + 0.6968P] where P = (Fo2 + 2Fc2)/3
S = 1.04(Δ/σ)max = 0.001
5600 reflectionsΔρmax = 0.29 e Å3
420 parametersΔρmin = −0.20 e Å3
0 restraintsExtinction correction: SHELXL, Fc*=kFc[1+0.001xFc2λ3/sin(2θ)]-1/4
Primary atom site location: structure-invariant direct methodsExtinction coefficient: 0.00104 (13)
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.
xyzUiso*/Ueq
F10.46395 (14)0.11731 (9)0.64805 (5)0.0784 (4)
F20.21171 (14)0.44622 (9)0.80466 (5)0.0770 (4)
O10.68735 (16)0.23173 (9)0.61437 (5)0.0624 (4)
O20.6461 (2)0.10831 (9)0.49564 (6)0.0736 (4)
O30.69794 (18)0.56520 (9)0.55258 (6)0.0679 (4)
O40.47768 (15)0.39636 (9)0.66732 (5)0.0615 (4)
O50.44069 (18)0.59221 (9)0.72372 (6)0.0688 (4)
O60.6323 (2)0.16777 (10)0.83123 (6)0.0773 (4)
C10.6664 (2)0.25474 (12)0.51551 (7)0.0506 (4)
C20.6927 (2)0.18855 (13)0.47863 (8)0.0581 (5)
C30.7666 (3)0.20342 (15)0.42802 (9)0.0667 (6)
H30.78450.15730.40290.080*
C40.8120 (2)0.28474 (15)0.41561 (9)0.0648 (6)
H40.86240.29460.38150.078*
C50.8356 (2)0.43996 (15)0.43901 (8)0.0644 (5)
H50.89020.45020.40590.077*
C60.8059 (3)0.50630 (15)0.47336 (9)0.0653 (6)
H60.83970.56260.46420.078*
C70.7247 (2)0.49263 (13)0.52286 (8)0.0574 (5)
C80.6796 (2)0.41099 (12)0.53769 (7)0.0517 (4)
H80.62740.40220.57150.062*
C90.7109 (2)0.34018 (12)0.50253 (7)0.0507 (4)
C100.7868 (2)0.35504 (14)0.45149 (8)0.0559 (5)
C110.5998 (2)0.23311 (12)0.57105 (7)0.0496 (4)
C120.4255 (2)0.21331 (12)0.57099 (7)0.0476 (4)
C130.3632 (2)0.15833 (13)0.60998 (8)0.0547 (5)
C140.2027 (2)0.13971 (14)0.61020 (9)0.0625 (5)
H140.16500.10070.63710.075*
C150.0981 (2)0.17842 (15)0.57095 (9)0.0652 (5)
H15−0.01350.16680.57090.078*
C160.1535 (2)0.23433 (15)0.53132 (8)0.0643 (5)
H160.08030.26120.50430.077*
C170.3159 (2)0.25097 (13)0.53125 (8)0.0558 (5)
H170.35360.28870.50360.067*
C180.6836 (4)0.03622 (16)0.46183 (11)0.0900 (8)
H18A0.63110.04280.42370.108*
H18B0.6455−0.01660.47900.108*
H18C0.80000.03290.45950.108*
C190.6063 (3)0.55635 (15)0.60080 (9)0.0675 (6)
H19A0.66620.52140.62960.081*
H19B0.50410.52820.58950.081*
H19C0.58590.61330.61640.081*
C200.5035 (2)0.45589 (13)0.75890 (8)0.0518 (4)
C210.5205 (2)0.54346 (13)0.76503 (8)0.0553 (5)
C220.6132 (2)0.57851 (14)0.81180 (9)0.0625 (5)
H220.62730.63900.81520.075*
C230.6827 (2)0.52424 (15)0.85231 (9)0.0637 (6)
H230.74320.54780.88410.076*
C240.7374 (3)0.37551 (17)0.88765 (9)0.0707 (6)
H240.79630.39740.92030.085*
C250.7240 (3)0.28997 (18)0.88072 (9)0.0745 (6)
H250.77400.25230.90820.089*
C260.6366 (2)0.25619 (14)0.83326 (8)0.0606 (5)
C270.5636 (2)0.30798 (13)0.79316 (8)0.0542 (5)
H270.50440.28390.76130.065*
C280.5765 (2)0.39972 (13)0.79942 (7)0.0513 (4)
C290.6658 (2)0.43405 (14)0.84741 (8)0.0568 (5)
C300.4085 (2)0.41890 (12)0.70827 (7)0.0495 (4)
C310.2319 (2)0.40506 (12)0.70876 (7)0.0471 (4)
C320.1502 (2)0.37456 (13)0.65940 (8)0.0544 (5)
H320.20860.36320.62730.065*
C33−0.0126 (2)0.36050 (14)0.65589 (9)0.0603 (5)
H33−0.06570.34070.62150.072*
C34−0.0988 (2)0.37524 (13)0.70255 (9)0.0617 (5)
H34−0.21130.36570.70030.074*
C35−0.0217 (2)0.40370 (14)0.75227 (9)0.0618 (5)
H35−0.08020.41330.78460.074*
C360.1410 (2)0.41815 (13)0.75471 (8)0.0531 (5)
C370.4591 (3)0.68400 (14)0.72680 (11)0.0769 (7)
H37A0.41040.70570.76040.092*
H37B0.40610.71040.69280.092*
H37C0.57340.69860.72930.092*
C380.5499 (3)0.12902 (16)0.78316 (10)0.0816 (7)
H38A0.43660.14570.78140.098*
H38B0.55880.06630.78620.098*
H38C0.59770.14830.74880.098*
U11U22U33U12U13U23
F10.0612 (8)0.0987 (9)0.0760 (8)0.0004 (6)0.0083 (6)0.0368 (7)
F20.0563 (7)0.1236 (11)0.0527 (6)−0.0066 (7)0.0160 (5)−0.0252 (7)
O10.0554 (8)0.0789 (9)0.0521 (8)−0.0110 (7)−0.0022 (6)0.0082 (6)
O20.0932 (12)0.0620 (9)0.0689 (9)0.0009 (8)0.0282 (8)−0.0069 (7)
O30.0795 (10)0.0635 (9)0.0617 (8)−0.0137 (7)0.0117 (7)0.0014 (7)
O40.0480 (8)0.0895 (10)0.0488 (7)−0.0059 (7)0.0148 (6)−0.0126 (7)
O50.0769 (10)0.0601 (8)0.0692 (9)−0.0042 (7)0.0051 (8)−0.0031 (7)
O60.0879 (11)0.0740 (10)0.0702 (10)0.0165 (8)0.0073 (8)0.0055 (8)
C10.0420 (10)0.0636 (11)0.0470 (9)0.0001 (8)0.0084 (8)0.0030 (8)
C20.0554 (12)0.0648 (12)0.0553 (11)0.0028 (9)0.0119 (9)0.0020 (9)
C30.0667 (14)0.0793 (15)0.0562 (12)0.0084 (11)0.0190 (10)−0.0045 (10)
C40.0549 (13)0.0885 (16)0.0532 (11)0.0049 (11)0.0184 (9)0.0076 (10)
C50.0554 (12)0.0864 (15)0.0531 (11)−0.0083 (11)0.0147 (9)0.0151 (11)
C60.0633 (13)0.0736 (14)0.0594 (12)−0.0144 (11)0.0085 (10)0.0136 (10)
C70.0516 (12)0.0679 (13)0.0527 (11)−0.0075 (9)0.0022 (9)0.0050 (9)
C80.0461 (11)0.0634 (12)0.0460 (10)−0.0056 (8)0.0061 (8)0.0065 (8)
C90.0394 (10)0.0665 (12)0.0467 (10)−0.0004 (8)0.0064 (8)0.0067 (8)
C100.0438 (11)0.0763 (13)0.0484 (10)0.0002 (9)0.0096 (8)0.0076 (9)
C110.0476 (11)0.0539 (10)0.0476 (10)−0.0005 (8)0.0059 (8)0.0008 (8)
C120.0458 (10)0.0574 (11)0.0406 (9)−0.0007 (8)0.0087 (7)−0.0033 (7)
C130.0508 (11)0.0656 (12)0.0486 (10)0.0017 (9)0.0109 (8)0.0035 (9)
C140.0533 (12)0.0732 (13)0.0632 (12)−0.0033 (10)0.0200 (10)0.0037 (10)
C150.0461 (12)0.0832 (15)0.0676 (13)−0.0043 (10)0.0128 (10)−0.0082 (11)
C160.0489 (12)0.0879 (15)0.0557 (11)0.0035 (10)0.0005 (9)−0.0022 (10)
C170.0533 (12)0.0708 (13)0.0437 (10)−0.0002 (9)0.0064 (8)0.0008 (8)
C180.122 (2)0.0680 (15)0.0831 (16)0.0080 (14)0.0304 (15)−0.0129 (12)
C190.0698 (14)0.0678 (13)0.0658 (13)−0.0097 (11)0.0112 (11)−0.0040 (10)
C200.0439 (10)0.0637 (12)0.0491 (10)−0.0043 (8)0.0132 (8)−0.0070 (8)
C210.0484 (11)0.0654 (12)0.0536 (11)−0.0058 (9)0.0138 (9)−0.0059 (9)
C220.0540 (12)0.0706 (13)0.0652 (13)−0.0119 (10)0.0198 (10)−0.0188 (10)
C230.0454 (11)0.0917 (16)0.0553 (11)−0.0079 (10)0.0123 (9)−0.0224 (11)
C240.0602 (14)0.1036 (19)0.0482 (11)0.0051 (12)0.0033 (9)−0.0127 (11)
C250.0766 (16)0.0989 (19)0.0481 (11)0.0189 (13)0.0052 (10)−0.0022 (11)
C260.0578 (13)0.0745 (14)0.0507 (11)0.0087 (10)0.0117 (9)0.0025 (9)
C270.0458 (11)0.0706 (12)0.0469 (10)0.0009 (9)0.0092 (8)−0.0057 (9)
C280.0395 (10)0.0709 (12)0.0450 (9)−0.0026 (8)0.0120 (8)−0.0056 (9)
C290.0418 (11)0.0839 (14)0.0458 (10)−0.0028 (9)0.0104 (8)−0.0137 (9)
C300.0464 (11)0.0582 (11)0.0450 (10)−0.0026 (8)0.0103 (8)−0.0005 (8)
C310.0419 (10)0.0558 (10)0.0441 (9)−0.0007 (8)0.0068 (7)0.0009 (8)
C320.0501 (11)0.0691 (12)0.0444 (10)−0.0020 (9)0.0063 (8)−0.0001 (8)
C330.0456 (11)0.0755 (13)0.0588 (12)−0.0062 (9)−0.0023 (9)−0.0012 (10)
C340.0403 (11)0.0676 (13)0.0775 (14)−0.0030 (9)0.0071 (10)0.0038 (10)
C350.0468 (12)0.0749 (13)0.0661 (12)0.0008 (9)0.0205 (10)−0.0022 (10)
C360.0469 (11)0.0673 (12)0.0458 (10)0.0000 (9)0.0085 (8)−0.0054 (8)
C370.0886 (17)0.0541 (12)0.0903 (16)−0.0022 (11)0.0225 (13)−0.0039 (11)
C380.0952 (19)0.0676 (14)0.0817 (16)0.0102 (13)0.0044 (14)−0.0051 (12)
F1—C131.349 (2)C18—H18A0.9800
F2—C361.356 (2)C18—H18B0.9800
O1—C111.217 (2)C18—H18C0.9800
O2—C21.376 (2)C19—H19A0.9800
O2—C181.426 (3)C19—H19B0.9800
O3—C71.357 (2)C19—H19C0.9800
O3—C191.427 (2)C20—C211.376 (3)
O4—C301.216 (2)C20—C281.404 (3)
O5—C211.372 (2)C20—C301.504 (3)
O5—C371.437 (2)C21—C221.414 (3)
O6—C261.376 (3)C22—C231.375 (3)
O6—C381.421 (3)C22—H220.9500
C1—C21.378 (3)C23—C291.413 (3)
C1—C91.419 (3)C23—H230.9500
C1—C111.504 (2)C24—C251.344 (3)
C2—C31.407 (3)C24—C291.419 (3)
C3—C41.358 (3)C24—H240.9500
C3—H30.9500C25—C261.398 (3)
C4—C101.410 (3)C25—H250.9500
C4—H40.9500C26—C271.356 (3)
C5—C61.348 (3)C27—C281.437 (3)
C5—C101.419 (3)C27—H270.9500
C5—H50.9500C28—C291.418 (3)
C6—C71.413 (3)C30—C311.493 (2)
C6—H60.9500C31—C361.387 (2)
C7—C81.377 (3)C31—C321.394 (2)
C8—C91.417 (3)C32—C331.376 (3)
C8—H80.9500C32—H320.9500
C9—C101.424 (2)C33—C341.381 (3)
C11—C121.489 (3)C33—H330.9500
C12—C131.387 (2)C34—C351.374 (3)
C12—C171.394 (3)C34—H340.9500
C13—C141.373 (3)C35—C361.376 (3)
C14—C151.369 (3)C35—H350.9500
C14—H140.9500C37—H37A0.9800
C15—C161.384 (3)C37—H37B0.9800
C15—H150.9500C37—H37C0.9800
C16—C171.383 (3)C38—H38A0.9800
C16—H160.9500C38—H38B0.9800
C17—H170.9500C38—H38C0.9800
C2—O2—C18118.02 (17)H19A—C19—H19C109.5
C7—O3—C19116.96 (16)H19B—C19—H19C109.5
C21—O5—C37117.89 (17)C21—C20—C28120.44 (17)
C26—O6—C38117.49 (17)C21—C20—C30120.50 (18)
C2—C1—C9120.35 (17)C28—C20—C30119.05 (17)
C2—C1—C11118.30 (17)O5—C21—C20115.47 (17)
C9—C1—C11121.24 (16)O5—C21—C22123.80 (19)
O2—C2—C1115.46 (17)C20—C21—C22120.7 (2)
O2—C2—C3123.34 (19)C23—C22—C21119.4 (2)
C1—C2—C3121.18 (19)C23—C22—H22120.3
C4—C3—C2118.9 (2)C21—C22—H22120.3
C4—C3—H3120.5C22—C23—C29121.13 (19)
C2—C3—H3120.5C22—C23—H23119.4
C3—C4—C10122.35 (18)C29—C23—H23119.4
C3—C4—H4118.8C25—C24—C29121.7 (2)
C10—C4—H4118.8C25—C24—H24119.1
C6—C5—C10121.17 (18)C29—C24—H24119.1
C6—C5—H5119.4C24—C25—C26120.3 (2)
C10—C5—H5119.4C24—C25—H25119.9
C5—C6—C7120.4 (2)C26—C25—H25119.9
C5—C6—H6119.8C27—C26—O6124.01 (19)
C7—C6—H6119.8C27—C26—C25121.5 (2)
O3—C7—C8125.14 (18)O6—C26—C25114.49 (19)
O3—C7—C6114.37 (18)C26—C27—C28119.36 (18)
C8—C7—C6120.49 (19)C26—C27—H27120.3
C7—C8—C9120.04 (17)C28—C27—H27120.3
C7—C8—H8120.0C20—C28—C29119.44 (19)
C9—C8—H8120.0C20—C28—C27121.40 (17)
C8—C9—C1122.51 (16)C29—C28—C27119.17 (18)
C8—C9—C10119.07 (17)C23—C29—C28118.88 (19)
C1—C9—C10118.41 (18)C23—C29—C24123.12 (19)
C4—C10—C5122.54 (18)C28—C29—C24118.0 (2)
C4—C10—C9118.76 (18)O4—C30—C31119.49 (16)
C5—C10—C9118.70 (19)O4—C30—C20119.50 (16)
O1—C11—C12121.72 (16)C31—C30—C20120.92 (14)
O1—C11—C1120.24 (16)C36—C31—C32116.43 (16)
C12—C11—C1118.04 (15)C36—C31—C30125.70 (16)
C13—C12—C17116.63 (17)C32—C31—C30117.85 (15)
C13—C12—C11122.78 (16)C33—C32—C31121.83 (17)
C17—C12—C11120.59 (16)C33—C32—H32119.1
F1—C13—C14117.43 (17)C31—C32—H32119.1
F1—C13—C12119.34 (17)C32—C33—C34119.77 (19)
C14—C13—C12123.14 (18)C32—C33—H33120.1
C15—C14—C13118.77 (19)C34—C33—H33120.1
C15—C14—H14120.6C35—C34—C33120.02 (19)
C13—C14—H14120.6C35—C34—H34120.0
C14—C15—C16120.52 (19)C33—C34—H34120.0
C14—C15—H15119.7C34—C35—C36119.28 (18)
C16—C15—H15119.7C34—C35—H35120.4
C17—C16—C15119.7 (2)C36—C35—H35120.4
C17—C16—H16120.1F2—C36—C35117.15 (16)
C15—C16—H16120.1F2—C36—C31120.21 (16)
C16—C17—C12121.20 (18)C35—C36—C31122.65 (18)
C16—C17—H17119.4O5—C37—H37A109.5
C12—C17—H17119.4O5—C37—H37B109.5
O2—C18—H18A109.5H37A—C37—H37B109.5
O2—C18—H18B109.5O5—C37—H37C109.5
H18A—C18—H18B109.5H37A—C37—H37C109.5
O2—C18—H18C109.5H37B—C37—H37C109.5
H18A—C18—H18C109.5O6—C38—H38A109.5
H18B—C18—H18C109.5O6—C38—H38B109.5
O3—C19—H19A109.5H38A—C38—H38B109.5
O3—C19—H19B109.5O6—C38—H38C109.5
H19A—C19—H19B109.5H38A—C38—H38C109.5
O3—C19—H19C109.5H38B—C38—H38C109.5
C18—O2—C2—C1−174.3 (2)C37—O5—C21—C20−177.68 (17)
C18—O2—C2—C33.9 (3)C37—O5—C21—C223.2 (3)
C9—C1—C2—O2179.53 (17)C28—C20—C21—O5−178.40 (16)
C11—C1—C2—O23.4 (3)C30—C20—C21—O52.6 (2)
C9—C1—C2—C31.2 (3)C28—C20—C21—C220.7 (3)
C11—C1—C2—C3−174.89 (18)C30—C20—C21—C22−178.31 (16)
O2—C2—C3—C4−178.3 (2)O5—C21—C22—C23177.09 (17)
C1—C2—C3—C4−0.2 (3)C20—C21—C22—C23−2.0 (3)
C2—C3—C4—C10−0.4 (3)C21—C22—C23—C291.3 (3)
C10—C5—C6—C7−0.1 (3)C29—C24—C25—C26−0.6 (3)
C19—O3—C7—C8−4.5 (3)C38—O6—C26—C271.9 (3)
C19—O3—C7—C6175.66 (18)C38—O6—C26—C25−178.0 (2)
C5—C6—C7—O3−177.94 (19)C24—C25—C26—C270.0 (3)
C5—C6—C7—C82.2 (3)C24—C25—C26—O6180.0 (2)
O3—C7—C8—C9178.56 (18)O6—C26—C27—C28−179.71 (17)
C6—C7—C8—C9−1.6 (3)C25—C26—C27—C280.2 (3)
C7—C8—C9—C1−179.65 (18)C21—C20—C28—C291.2 (3)
C7—C8—C9—C10−1.0 (3)C30—C20—C28—C29−179.77 (15)
C2—C1—C9—C8176.93 (18)C21—C20—C28—C27−178.46 (16)
C11—C1—C9—C8−7.1 (3)C30—C20—C28—C270.6 (2)
C2—C1—C9—C10−1.7 (3)C26—C27—C28—C20179.75 (17)
C11—C1—C9—C10174.33 (17)C26—C27—C28—C290.1 (3)
C3—C4—C10—C5179.3 (2)C22—C23—C29—C280.6 (3)
C3—C4—C10—C9−0.1 (3)C22—C23—C29—C24178.98 (18)
C6—C5—C10—C4178.1 (2)C20—C28—C29—C23−1.8 (3)
C6—C5—C10—C9−2.5 (3)C27—C28—C29—C23177.82 (16)
C8—C9—C10—C4−177.56 (18)C20—C28—C29—C24179.71 (17)
C1—C9—C10—C41.1 (3)C27—C28—C29—C24−0.7 (3)
C8—C9—C10—C53.1 (3)C25—C24—C29—C23−177.5 (2)
C1—C9—C10—C5−178.28 (18)C25—C24—C29—C280.9 (3)
C2—C1—C11—O1102.8 (2)C21—C20—C30—O495.2 (2)
C9—C1—C11—O1−73.3 (2)C28—C20—C30—O4−83.9 (2)
C2—C1—C11—C12−76.9 (2)C21—C20—C30—C31−88.1 (2)
C9—C1—C11—C12107.1 (2)C28—C20—C30—C3192.8 (2)
O1—C11—C12—C13−29.1 (3)O4—C30—C31—C36172.05 (19)
C1—C11—C12—C13150.62 (18)C20—C30—C31—C36−4.6 (3)
O1—C11—C12—C17150.16 (19)O4—C30—C31—C32−6.5 (3)
C1—C11—C12—C17−30.2 (3)C20—C30—C31—C32176.86 (17)
C17—C12—C13—F1177.37 (17)C36—C31—C32—C331.8 (3)
C11—C12—C13—F1−3.4 (3)C30—C31—C32—C33−179.56 (18)
C17—C12—C13—C140.8 (3)C31—C32—C33—C34−1.2 (3)
C11—C12—C13—C14−179.98 (18)C32—C33—C34—C35−0.1 (3)
F1—C13—C14—C15−178.09 (18)C33—C34—C35—C360.7 (3)
C12—C13—C14—C15−1.4 (3)C34—C35—C36—F2179.97 (19)
C13—C14—C15—C160.9 (3)C34—C35—C36—C31−0.1 (3)
C14—C15—C16—C170.2 (3)C32—C31—C36—F2178.79 (17)
C15—C16—C17—C12−0.9 (3)C30—C31—C36—F20.3 (3)
C13—C12—C17—C160.4 (3)C32—C31—C36—C35−1.2 (3)
C11—C12—C17—C16−178.86 (18)C30—C31—C36—C35−179.69 (19)
  7 in total

1.  The Cambridge Structural Database: a quarter of a million crystal structures and rising.

Authors:  Frank H Allen
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.  Single-handed helical wrapping of single-walled carbon nanotubes by chiral, ionic, semiconducting polymers.

Authors:  Pravas Deria; Christopher D Von Bargen; Jean-Hubert Olivier; Amar S Kumbhar; Jeffery G Saven; Michael J Therien
Journal:  J Am Chem Soc       Date:  2013-10-21       Impact factor: 15.419

4.  (2,7-Dimethoxy-naphthalene-1,8-di-yl)bis-(4-fluoro-benzo-yl)dimethanone.

Authors:  Shoji Watanabe; Atsushi Nagasawa; Akiko Okamoto; Keiichi Noguchi; Noriyuki Yonezawa
Journal:  Acta Crystallogr Sect E Struct Rep Online       Date:  2010-01-09

5.  (2,7-Dimeth-oxy-naphthalen-1-yl)(phen-yl)methanone.

Authors:  Yuichi Kato; Atsushi Nagasawa; Daichi Hijikata; Akiko Okamoto; Noriyuki Yonezawa
Journal:  Acta Crystallogr Sect E Struct Rep Online       Date:  2010-09-30

6.  1,8-Dibenzoyl-2,7-dimethoxy-naphthalene.

Authors:  Kosuke Nakaema; Shoji Watanabe; Akiko Okamoto; Keiichi Noguchi; Noriyuki Yonezawa
Journal:  Acta Crystallogr Sect E Struct Rep Online       Date:  2008-04-04

7.  (2,7-Dimeth-oxy-naphthalen-1-yl)(4-fluoro-phen-yl)methanone.

Authors:  Shoji Watanabe; Toyokazu Muto; Atsushi Nagasawa; Akiko Okamoto; Noriyuki Yonezawa
Journal:  Acta Crystallogr Sect E Struct Rep Online       Date:  2011-05-20
  7 in total

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