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ISSN: 2056-9890

4,4′-({[(Pyridine-2,6-di­yl)bis­­(methyl­ene)]bis­­(­­oxy)}bis­­(methyl­ene))dibenzo­nitrile

aSchool of Chemical Sciences and Food Technology, Universiti Kebangsaan Malaysia, 43600 Bangi, Selangor, Malaysia
*Correspondence e-mail: n_izzaty@ukm.my

(Received 3 January 2014; accepted 6 January 2014; online 11 January 2014)

The complete title molecule, C23H19N3O2, is generated by a twofold axis passing through the central ring. The two oxymethyl­benzo­nitrile arms are attached at the meta positions of the central pyridine ring. The dihedral angle between the pyridine ring and benzene ring of both arms is 84.55 (6)° while the benzene rings make a dihedral angle of 46.07 (7)°. In the crystal, weak C—H⋯π inter­actions link the molecules sheets parallel to the ac plane.

Related literature

For bond-length data, see: Allen et al. (1987[Allen, F. H., Kennard, O., Watson, D. G., Brammer, L., Orpen, A. G. & Taylor, R. (1987). J. Chem. Soc. Perkin Trans. 2, pp. S1-19.]). For related structures, see: Lima et al. (2011[Lima, C. F., Gomes, L. R., Santos, L. M. N. B. F. & Low, J. N. (2011). Acta Cryst. E67, o66.]); Wang & Zhao (2008[Wang, W. & Zhao, H. (2008). Acta Cryst. E64, o1599.]): Zhao (2008[Zhao, Y.-Y. (2008). Acta Cryst. E64, o761.]); Xiao & Zhao (2008[Xiao, J. & Zhao, H. (2008). Acta Cryst. E64, o1436.]).

[Scheme 1]

Experimental

Crystal data
  • C23H19N3O2

  • Mr = 369.41

  • Monoclinic, C 2/c

  • a = 14.1838 (7) Å

  • b = 7.5493 (4) Å

  • c = 18.4619 (12) Å

  • β = 107.837 (2)°

  • V = 1881.83 (18) Å3

  • Z = 4

  • Mo Kα radiation

  • μ = 0.09 mm−1

  • T = 296 K

  • 0.49 × 0.44 × 0.34 mm

Data collection
  • Bruker SMART APEX CCD area-detector diffractometer

  • Absorption correction: multi-scan (SADABS; Bruker, 2009[Bruker (2009). SMART, SAINT and SADABS. Bruker AXS Inc., Madison, Wisconsin, USA.]) Tmin = 0.960, Tmax = 0.972

  • 21611 measured reflections

  • 1846 independent reflections

  • 1519 reflections with I > 2σ(I)

  • Rint = 0.040

Refinement
  • R[F2 > 2σ(F2)] = 0.039

  • wR(F2) = 0.106

  • S = 1.05

  • 1846 reflections

  • 129 parameters

  • H-atom parameters constrained

  • Δρmax = 0.10 e Å−3

  • Δρmin = −0.12 e Å−3

Table 1
Hydrogen-bond geometry (Å, °)

Cg is the centroid of the N1/C1–C3/C2′/C3′ ring.

D—H⋯A D—H H⋯A DA D—H⋯A
C8—H8⋯Cgi 0.93 2.87 3.7180 (15) 152
Symmetry code: (i) [-x+{\script{3\over 2}}, -y+{\script{1\over 2}}, -z].

Data collection: SMART (Bruker, 2009[Bruker (2009). SMART, SAINT and SADABS. Bruker AXS Inc., Madison, Wisconsin, USA.]); cell refinement: SAINT (Bruker, 2009[Bruker (2009). SMART, SAINT and SADABS. Bruker AXS Inc., Madison, Wisconsin, USA.]); data reduction: SAINT; program(s) used to solve structure: SHELXS97 (Sheldrick, 2008[Sheldrick, G. M. (2008). Acta Cryst. A64, 112-122.]); program(s) used to refine structure: SHELXL97 (Sheldrick, 2008[Sheldrick, G. M. (2008). Acta Cryst. A64, 112-122.]); molecular graphics: SHELXTL (Sheldrick, 2008[Sheldrick, G. M. (2008). Acta Cryst. A64, 112-122.]); software used to prepare material for publication: SHELXTL and PLATON (Spek, 2009[Spek, A. L. (2009). Acta Cryst. D65, 148-155.]).

Supporting information


Comment top

Despite the wide application of dibenzonitrile compounds in the area of chemical synthesis and industrial, the structural study of dibenzonitrile derivatives are less reported. Thiadiazole dibenzonitrile (Wang & Zhao, 2008) and naphthalene dibenzonitrile (Lima et al., 2011) are some examples of dibenzonitrile derivatives. On the other hand, 4,4'-{[1,1'-Methylenebis (naphthalene-2,1-diyl)]bis(oxymethylene)}dibenzonitrile (Zhao, 2008) and 4,4'-(Oxydimethylene)dibenzonitrile (Xiao & Zhao, 2008) are few examples of bis(oxymethylene)dibenzonitriles. The title compound is a bis(methylene)bis(oxy) bis(methylene)dibenzonitrile in which the oxymtheylenedibenzonitrile arms are connected by 2,6-pyridine linkager at meta position (Figure 1) making the whole molecule, a bird like structure. The dihedral angle between the two benzene rings [(C6/C7/C8/C9/C10/C11), (C6a/C7a/C8a/C9a/C10a/C11a)] and the central pyridine (C1/C2/C3/C2a/C3a/N1) is 84.55 (6)°. The maximum deviation of the two planes is 0.005 (1) Å for C2 atom from the least square plane of the pyridine ring. The bond lengths are in normal ranges (Allen et al.,1987). In the structure, no intermolecular hydrogen bonds were observed except the presence of C8—H8···π bonds with the pyridine ring (H8—centroid Cg distance of 2.87 Å, and X—H···centroid angle = 152°).

Related literature top

For bond-length data, see: Allen et al. (1987). For related structures, see: Lima et al. (2011); Wang & Zhao (2008): Zhao (2008); Xiao & Zhao (2008).

Experimental top

NaH (10.72 g, 17.8 mmol) was carefully added to a solution of 2,6-pyridine dimethanol (1.0 g, 7.2 mmol) in dry THF (35 ml). The resulting mixture was refluxed for 1.5 h and allowed to cool to room temperature. Next, 4-bromomethyl benzonitrile (3.0 g, 15.3 mmol) was added and continued to reflux for another 24 h at 75°C. Water was slowly added to quench the reaction. The organic layers were extracted into ethyl acetate. The combined organic layers were dried over magnesium sulfate, filtered and concentrated under reduced pressure. The resulting residue was purified using column chromatography (Hexane:Ethyl acetate) to furnish a colorless powder. Single crystals were obtained from the solution of Hexane:Ethyl acetate after one day of evaporation (yield 87%, m.p 378.8–380 K). 1H NMR (300.1 MHz, CDCl3): 7.75 (1H, t, 3JHH 7.7 Hz; ArH), 7.65 (4H, d, 3JHH 8.4 Hz;4 x ArH),7.49 (4H, d, 3JHH 8.6 Hz; 4 x ArH), 7.40 (2H, d, 3JHH 7.8 Hz; 2 x ArH), 4.71 (4H, s; 2 x CH2), 4.70 (4H, s; 2 x CH2);13C NMR (75.5 MHz, CDCl3):C 157.6 (ArC), 143.6 (ArC), 137.6 (ArCH), 132.4 (ArCH), 127.9 (ArCH), 120.4 (ArCH), 118.9 (CN), 111.6 (ArC),73.7 (CH2), 72.1 (CH2); MS (CI+) m/z 239.0 (27), 370.2 ([M+H]+, 100); HRMS (CI+) m/z calculated for C23H20N3O2 [M+H]+ 370.1556, found 370.1563.

Refinement top

After their location in the difference map, the H-atoms attached to the C and N atoms were fixed geometrically at ideal positions and allowed to ride on the parent atoms with C—H = 0.93 Å, with Uiso(H)=1.2Ueq(C).

Structure description top

Despite the wide application of dibenzonitrile compounds in the area of chemical synthesis and industrial, the structural study of dibenzonitrile derivatives are less reported. Thiadiazole dibenzonitrile (Wang & Zhao, 2008) and naphthalene dibenzonitrile (Lima et al., 2011) are some examples of dibenzonitrile derivatives. On the other hand, 4,4'-{[1,1'-Methylenebis (naphthalene-2,1-diyl)]bis(oxymethylene)}dibenzonitrile (Zhao, 2008) and 4,4'-(Oxydimethylene)dibenzonitrile (Xiao & Zhao, 2008) are few examples of bis(oxymethylene)dibenzonitriles. The title compound is a bis(methylene)bis(oxy) bis(methylene)dibenzonitrile in which the oxymtheylenedibenzonitrile arms are connected by 2,6-pyridine linkager at meta position (Figure 1) making the whole molecule, a bird like structure. The dihedral angle between the two benzene rings [(C6/C7/C8/C9/C10/C11), (C6a/C7a/C8a/C9a/C10a/C11a)] and the central pyridine (C1/C2/C3/C2a/C3a/N1) is 84.55 (6)°. The maximum deviation of the two planes is 0.005 (1) Å for C2 atom from the least square plane of the pyridine ring. The bond lengths are in normal ranges (Allen et al.,1987). In the structure, no intermolecular hydrogen bonds were observed except the presence of C8—H8···π bonds with the pyridine ring (H8—centroid Cg distance of 2.87 Å, and X—H···centroid angle = 152°).

For bond-length data, see: Allen et al. (1987). For related structures, see: Lima et al. (2011); Wang & Zhao (2008): Zhao (2008); Xiao & Zhao (2008).

Computing details top

Data collection: SMART (Bruker, 2009); cell refinement: SAINT (Bruker, 2009); data reduction: SAINT (Bruker, 2009); program(s) used to solve structure: SHELXS97 (Sheldrick, 2008); program(s) used to refine structure: SHELXL97 (Sheldrick, 2008); molecular graphics: SHELXTL (Sheldrick, 2008); software used to prepare material for publication: SHELXTL (Sheldrick, 2008) and PLATON (Spek, 2009).

Figures top
[Figure 1] Fig. 1. : Molecular structure of (I) with 50% probability displacement ellipsoids. Symmetry code A: (-x + 2, y, -z + 1/2).
4,4'-({[(Pyridine-2,6-diyl)bis(methylene)]bis(oxy)}bis(methylene))dibenzonitrile top
Crystal data top
C23H19N3O2F(000) = 776
Mr = 369.41Dx = 1.304 Mg m3
Monoclinic, C2/cMo Kα radiation, λ = 0.71073 Å
Hall symbol: -C 2ycCell parameters from 8925 reflections
a = 14.1838 (7) Åθ = 3.0–26.0°
b = 7.5493 (4) ŵ = 0.09 mm1
c = 18.4619 (12) ÅT = 296 K
β = 107.837 (2)°Block, colourless
V = 1881.83 (18) Å30.49 × 0.44 × 0.34 mm
Z = 4
Data collection top
Bruker SMART APEX CCD area-detector
diffractometer
1846 independent reflections
Radiation source: fine-focus sealed tube1519 reflections with I > 2σ(I)
Graphite monochromatorRint = 0.040
Detector resolution: 83.66 pixels mm-1θmax = 26.0°, θmin = 3.1°
ω scanh = 1717
Absorption correction: multi-scan
(SADABS; Bruker, 2009)
k = 99
Tmin = 0.960, Tmax = 0.972l = 2222
21611 measured reflections
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-atom parameters constrained
wR(F2) = 0.106 w = 1/[σ2(Fo2) + (0.0485P)2 + 0.9538P]
where P = (Fo2 + 2Fc2)/3
S = 1.05(Δ/σ)max < 0.001
1846 reflectionsΔρmax = 0.10 e Å3
129 parametersΔρmin = 0.12 e Å3
0 restraintsExtinction correction: SHELXL97 (Sheldrick, 2008), Fc*=kFc[1+0.001xFc2λ3/sin(2θ)]-1/4
Primary atom site location: structure-invariant direct methodsExtinction coefficient: 0.0196 (14)
Crystal data top
C23H19N3O2V = 1881.83 (18) Å3
Mr = 369.41Z = 4
Monoclinic, C2/cMo Kα radiation
a = 14.1838 (7) ŵ = 0.09 mm1
b = 7.5493 (4) ÅT = 296 K
c = 18.4619 (12) Å0.49 × 0.44 × 0.34 mm
β = 107.837 (2)°
Data collection top
Bruker SMART APEX CCD area-detector
diffractometer
1846 independent reflections
Absorption correction: multi-scan
(SADABS; Bruker, 2009)
1519 reflections with I > 2σ(I)
Tmin = 0.960, Tmax = 0.972Rint = 0.040
21611 measured reflections
Refinement top
R[F2 > 2σ(F2)] = 0.0390 restraints
wR(F2) = 0.106H-atom parameters constrained
S = 1.05Δρmax = 0.10 e Å3
1846 reflectionsΔρmin = 0.12 e Å3
129 parameters
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
O10.73355 (7)0.39554 (16)0.18488 (6)0.0547 (3)
N11.00000.4615 (2)0.25000.0416 (4)
N20.25164 (10)0.0851 (2)0.08574 (9)0.0706 (5)
C11.00000.0946 (3)0.25000.0530 (6)
H11.00000.02860.25000.064*
C20.91206 (10)0.1866 (2)0.23419 (8)0.0495 (4)
H20.85190.12690.22300.059*
C30.91523 (9)0.3697 (2)0.23533 (7)0.0415 (4)
C40.82379 (10)0.4813 (2)0.22471 (10)0.0560 (4)
H4A0.82060.51690.27440.067*
H4B0.83000.58800.19730.067*
C50.71745 (10)0.3882 (2)0.10575 (8)0.0463 (4)
H5A0.76590.31020.09510.056*
H5B0.72570.50540.08700.056*
C60.61510 (9)0.32139 (17)0.06575 (8)0.0369 (3)
C70.58164 (10)0.3218 (2)0.01320 (8)0.0429 (4)
H70.62250.36450.04020.052*
C80.48871 (11)0.2599 (2)0.05204 (8)0.0452 (4)
H80.46720.25990.10500.054*
C90.42703 (10)0.19725 (18)0.01217 (8)0.0403 (3)
C100.45942 (10)0.19748 (19)0.06662 (8)0.0443 (4)
H100.41820.15620.09360.053*
C110.55300 (10)0.25913 (19)0.10512 (8)0.0422 (4)
H110.57460.25880.15800.051*
C120.32950 (11)0.1331 (2)0.05269 (9)0.0496 (4)
Atomic displacement parameters (Å2) top
U11U22U33U12U13U23
O10.0282 (5)0.0835 (9)0.0491 (6)0.0047 (5)0.0069 (4)0.0156 (5)
N10.0293 (8)0.0550 (10)0.0369 (8)0.0000.0050 (6)0.000
N20.0447 (8)0.0701 (10)0.0859 (11)0.0081 (7)0.0035 (7)0.0136 (8)
C10.0554 (13)0.0502 (13)0.0511 (12)0.0000.0130 (10)0.000
C20.0393 (8)0.0624 (10)0.0446 (8)0.0113 (7)0.0095 (6)0.0047 (7)
C30.0302 (7)0.0592 (9)0.0329 (7)0.0029 (6)0.0063 (5)0.0071 (6)
C40.0297 (7)0.0736 (11)0.0599 (9)0.0005 (7)0.0065 (6)0.0220 (8)
C50.0327 (7)0.0542 (9)0.0498 (8)0.0018 (6)0.0095 (6)0.0016 (7)
C60.0302 (6)0.0342 (7)0.0442 (7)0.0066 (5)0.0084 (5)0.0003 (6)
C70.0403 (7)0.0467 (8)0.0441 (8)0.0014 (6)0.0164 (6)0.0001 (6)
C80.0469 (8)0.0485 (8)0.0368 (7)0.0028 (7)0.0080 (6)0.0030 (6)
C90.0343 (7)0.0344 (7)0.0478 (8)0.0030 (5)0.0061 (6)0.0013 (6)
C100.0368 (7)0.0469 (8)0.0500 (8)0.0009 (6)0.0142 (6)0.0073 (6)
C110.0381 (7)0.0480 (8)0.0376 (7)0.0046 (6)0.0071 (6)0.0040 (6)
C120.0419 (8)0.0432 (8)0.0588 (9)0.0025 (7)0.0080 (7)0.0039 (7)
Geometric parameters (Å, º) top
O1—C51.4088 (18)C5—H5A0.9700
O1—C41.4217 (17)C5—H5B0.9700
N1—C3i1.3417 (16)C6—C111.3846 (19)
N1—C31.3417 (16)C6—C71.3879 (19)
N2—C121.1449 (19)C7—C81.3751 (19)
C1—C21.3786 (19)C7—H70.9300
C1—C2i1.3786 (19)C8—C91.387 (2)
C1—H10.9300C8—H80.9300
C2—C31.382 (2)C9—C101.3847 (19)
C2—H20.9300C9—C121.4400 (19)
C3—C41.508 (2)C10—C111.3804 (19)
C4—H4A0.9700C10—H100.9300
C4—H4B0.9700C11—H110.9300
C5—C61.5001 (18)
C5—O1—C4112.87 (12)C6—C5—H5B109.6
C3i—N1—C3117.77 (18)H5A—C5—H5B108.1
C2—C1—C2i119.5 (2)C11—C6—C7118.96 (12)
C2—C1—H1120.3C11—C6—C5122.07 (12)
C2i—C1—H1120.3C7—C6—C5118.97 (12)
C1—C2—C3118.50 (14)C8—C7—C6120.77 (13)
C1—C2—H2120.8C8—C7—H7119.6
C3—C2—H2120.8C6—C7—H7119.6
N1—C3—C2122.86 (14)C7—C8—C9119.92 (13)
N1—C3—C4114.79 (14)C7—C8—H8120.0
C2—C3—C4122.25 (13)C9—C8—H8120.0
O1—C4—C3114.53 (13)C10—C9—C8119.77 (12)
O1—C4—H4A108.6C10—C9—C12120.20 (13)
C3—C4—H4A108.6C8—C9—C12120.03 (13)
O1—C4—H4B108.6C11—C10—C9119.91 (13)
C3—C4—H4B108.6C11—C10—H10120.0
H4A—C4—H4B107.6C9—C10—H10120.0
O1—C5—C6110.41 (11)C10—C11—C6120.67 (13)
O1—C5—H5A109.6C10—C11—H11119.7
C6—C5—H5A109.6C6—C11—H11119.7
O1—C5—H5B109.6N2—C12—C9178.67 (19)
C2i—C1—C2—C30.50 (9)C11—C6—C7—C80.7 (2)
C3i—N1—C3—C20.54 (10)C5—C6—C7—C8179.27 (13)
C3i—N1—C3—C4175.99 (14)C6—C7—C8—C90.5 (2)
C1—C2—C3—N11.1 (2)C7—C8—C9—C100.0 (2)
C1—C2—C3—C4175.22 (11)C7—C8—C9—C12179.68 (14)
C5—O1—C4—C376.99 (18)C8—C9—C10—C110.3 (2)
N1—C3—C4—O1159.71 (12)C12—C9—C10—C11180.00 (13)
C2—C3—C4—O123.7 (2)C9—C10—C11—C60.1 (2)
C4—O1—C5—C6171.60 (12)C7—C6—C11—C100.3 (2)
O1—C5—C6—C116.58 (19)C5—C6—C11—C10179.59 (13)
O1—C5—C6—C7173.49 (12)
Symmetry code: (i) x+2, y, z+1/2.
Hydrogen-bond geometry (Å, º) top
Cg is the centroid of the N1/C1–C3/C2'/C3' ring.
D—H···AD—HH···AD···AD—H···A
C11—H11···O10.932.392.735 (2)102
C8—H8···Cgii0.932.873.7180 (15)152
Symmetry code: (ii) x+3/2, y+1/2, z.
Hydrogen-bond geometry (Å, º) top
Cg is the centroid of the N1/C1–C3/C2'/C3' ring.
D—H···AD—HH···AD···AD—H···A
C8—H8···Cgi0.932.873.7180 (15)152
Symmetry code: (i) x+3/2, y+1/2, z.
 

Acknowledgements

The authors would like to thank Universiti Kebangsaan Malaysia and the Ministry of Higher Education, Malaysia, for research grants GGPM-2012–016 and DIP-2012–11, respectively. Research facilities provided by the Centre of Research and Instrumentation (CRIM) are very much appreciated.

References

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First citationZhao, Y.-Y. (2008). Acta Cryst. E64, o761.  Web of Science CSD CrossRef IUCr Journals Google Scholar

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