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ISSN: 2056-9890

N,N′-Bis(pyridin-2-yl)benzene-1,4-dicarboxamide

aDepartment of Chemistry, Chung-Yuan Christian University, Chung-Li, Taiwan
*Correspondence e-mail: jdchen@cycu.edu.tw

(Received 6 December 2010; accepted 6 December 2010; online 11 December 2010)

Mol­ecules of the title compound, C18H14N4O2, are located around an inversion center and connected into chains in the crystal via inter­molecular N—H⋯N hydrogen bonds generating an R22(8) motif.

Related literature

For N,N′-bis­(pyridin­yl) derivatives of 1,4-benzene­dicarbox­amide and their metal complexes, see: Tsai et al. (2010[Tsai, T.-P., Huang, Y.-T., Ray, U., Chang, Y.-J., Cheng, P.-C., Wu, C.-J., Chen, J.-D. & Wang, J. C. (2010). Polyhedron, pp. 3081-3088.]).

[Scheme 1]

Experimental

Crystal data
  • C18H14N4O2

  • Mr = 318.33

  • Triclinic, [P \overline 1]

  • a = 5.7895 (4) Å

  • b = 7.8315 (6) Å

  • c = 8.8460 (5) Å

  • α = 82.906 (6)°

  • β = 74.083 (5)°

  • γ = 73.695 (6)°

  • V = 369.72 (4) Å3

  • Z = 1

  • Mo Kα radiation

  • μ = 0.10 mm−1

  • T = 298 K

  • 0.60 × 0.60 × 0.56 mm

Data collection
  • Siemens P4 diffractometer

  • Absorption correction: ψ scan (XSCANS; Siemens, 1995[Siemens (1995). XSCANS. Siemens Analytical X-ray Instruments Inc., Madison, Wisconsin, USA.]) Tmin = 0.831, Tmax = 0.851

  • 1962 measured reflections

  • 1787 independent reflections

  • 1521 reflections with I > 2σ(I)

  • Rint = 0.013

  • 3 standard reflections every 97 reflections intensity decay: none

Refinement
  • R[F2 > 2σ(F2)] = 0.040

  • wR(F2) = 0.112

  • S = 1.06

  • 1787 reflections

  • 110 parameters

  • H-atom parameters constrained

  • Δρmax = 0.32 e Å−3

  • Δρmin = −0.19 e Å−3

Table 1
Hydrogen-bond geometry (Å, °)

D—H⋯A D—H H⋯A DA D—H⋯A
N1—H1A⋯N2i 0.86 2.34 3.1679 (15) 163
Symmetry code: (i) -x+1, -y, -z+1.

Data collection: XSCANS (Siemens, 1995[Siemens (1995). XSCANS. Siemens Analytical X-ray Instruments Inc., Madison, Wisconsin, USA.]); cell refinement: XSCANS; data reduction: XSCANS and SHELXTL (Sheldrick, 2008[Sheldrick, G. M. (2008). Acta Cryst. A64, 112-122.]); 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; software used to prepare material for publication: SHELXTL.

Supporting information


Comment top

Several Cu(II), Cd(II) and Hg(II) complexes containg N,N'-bis(2/3-aryl)-1,4-benzenedicarboxamide ligands have been reported, which show one-dimensional and two-dimensional structures (Tsai, et al., 2010). Within this project the crystal structure of the title compound was determined.

In its crystal structure intermolecular N—H···N hydrogen bonds are found (Tab. 1) and the molecule is located on a center of inversion (Fig. 1).

Related literature top

For N,N'-bis(pyridinyl) derivatives of 1,4-benzenedicarboxamide and their metal complexes, see: Tsai et al. (2010).

Experimental top

The title compound was prepared according to a published procedure (Tsai, et al., 2010). Block crystals suitable for X-ray crystallography were obtained by slow evaporization of the solvent from a solution of the title compound in methanol.

Refinement top

All the hydrogen atoms were placed into idealized positions and refined in the riding atom approximation with C—H = 0.93 Å, N—H = 0.86 Å and Uiso(H) = 1.2 Ueq(C, N).

Structure description top

Several Cu(II), Cd(II) and Hg(II) complexes containg N,N'-bis(2/3-aryl)-1,4-benzenedicarboxamide ligands have been reported, which show one-dimensional and two-dimensional structures (Tsai, et al., 2010). Within this project the crystal structure of the title compound was determined.

In its crystal structure intermolecular N—H···N hydrogen bonds are found (Tab. 1) and the molecule is located on a center of inversion (Fig. 1).

For N,N'-bis(pyridinyl) derivatives of 1,4-benzenedicarboxamide and their metal complexes, see: Tsai et al. (2010).

Computing details top

Data collection: XSCANS (Siemens, 1995); cell refinement: XSCANS (Siemens, 1995); data reduction: SHELXTL (Sheldrick, 2008); 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).

Figures top
[Figure 1] Fig. 1. Crystal structure of the title compound with atom labeling and displacement ellipsoids drawn at the 30% probability level. Symmetry code: (i) =-x + 2,-y,-z.
N,N'-Bis(pyridin-2-yl)benzene-1,4-dicarboxamide top
Crystal data top
C18H14N4O2Z = 1
Mr = 318.33F(000) = 166
Triclinic, P1Dx = 1.430 Mg m3
Hall symbol: -P 1Mo Kα radiation, λ = 0.71073 Å
a = 5.7895 (4) ÅCell parameters from 50 reflections
b = 7.8315 (6) Åθ = 4.8–15.0°
c = 8.8460 (5) ŵ = 0.10 mm1
α = 82.906 (6)°T = 298 K
β = 74.083 (5)°Block, pale yellow
γ = 73.695 (6)°0.60 × 0.60 × 0.56 mm
V = 369.72 (4) Å3
Data collection top
Bruker P4
diffractometer
1521 reflections with I > 2σ(I)
Radiation source: fine-focus sealed tubeRint = 0.013
Graphite monochromatorθmax = 28.0°, θmin = 2.4°
ω scansh = 07
Absorption correction: ψ scan
(XSCANS; Siemens, 1995)
k = 910
Tmin = 0.831, Tmax = 0.851l = 1111
1962 measured reflections3 standard reflections every 97 reflections
1787 independent reflections intensity decay: none
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)] = 0.040H-atom parameters constrained
wR(F2) = 0.112 w = 1/[σ2(Fo2) + (0.0468P)2 + 0.1049P]
where P = (Fo2 + 2Fc2)/3
S = 1.06(Δ/σ)max < 0.001
1787 reflectionsΔρmax = 0.32 e Å3
110 parametersΔρmin = 0.19 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: 0.193 (17)
Crystal data top
C18H14N4O2γ = 73.695 (6)°
Mr = 318.33V = 369.72 (4) Å3
Triclinic, P1Z = 1
a = 5.7895 (4) ÅMo Kα radiation
b = 7.8315 (6) ŵ = 0.10 mm1
c = 8.8460 (5) ÅT = 298 K
α = 82.906 (6)°0.60 × 0.60 × 0.56 mm
β = 74.083 (5)°
Data collection top
Bruker P4
diffractometer
1521 reflections with I > 2σ(I)
Absorption correction: ψ scan
(XSCANS; Siemens, 1995)
Rint = 0.013
Tmin = 0.831, Tmax = 0.8513 standard reflections every 97 reflections
1962 measured reflections intensity decay: none
1787 independent reflections
Refinement top
R[F2 > 2σ(F2)] = 0.0400 restraints
wR(F2) = 0.112H-atom parameters constrained
S = 1.06Δρmax = 0.32 e Å3
1787 reflectionsΔρmin = 0.19 e Å3
110 parameters
Special details top

Experimental. 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.

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
O1.1101 (2)0.21659 (16)0.30550 (13)0.0497 (3)
N10.7461 (2)0.13586 (16)0.41052 (13)0.0369 (3)
H1A0.66950.06110.39820.044*
N20.4263 (2)0.20173 (15)0.63054 (13)0.0353 (3)
C10.6435 (2)0.23152 (17)0.54787 (14)0.0316 (3)
C20.7512 (3)0.35023 (19)0.59089 (16)0.0393 (3)
H2B0.90660.36320.53360.047*
C30.6200 (3)0.4479 (2)0.72110 (18)0.0434 (4)
H3A0.68530.52960.75230.052*
C40.3907 (3)0.42384 (19)0.80528 (17)0.0422 (3)
H4A0.29820.49000.89240.051*
C50.3035 (3)0.29915 (19)0.75631 (16)0.0381 (3)
H5A0.15070.28160.81380.046*
C60.9524 (2)0.14708 (17)0.29436 (15)0.0322 (3)
C70.9716 (2)0.06764 (16)0.14401 (14)0.0290 (3)
C81.2030 (2)0.03051 (17)0.06322 (14)0.0314 (3)
H8A1.33910.05090.10570.038*
C91.2324 (2)0.09833 (17)0.08032 (15)0.0321 (3)
H9A1.38760.16410.13400.039*
Atomic displacement parameters (Å2) top
U11U22U33U12U13U23
O0.0418 (6)0.0697 (7)0.0464 (6)0.0318 (5)0.0005 (5)0.0194 (5)
N10.0417 (6)0.0460 (6)0.0291 (5)0.0261 (5)0.0008 (5)0.0092 (5)
N20.0366 (6)0.0411 (6)0.0302 (5)0.0166 (5)0.0041 (4)0.0045 (4)
C10.0368 (6)0.0353 (6)0.0256 (6)0.0148 (5)0.0065 (5)0.0023 (5)
C20.0426 (7)0.0445 (8)0.0364 (7)0.0224 (6)0.0055 (6)0.0067 (6)
C30.0532 (9)0.0383 (7)0.0443 (8)0.0182 (6)0.0115 (7)0.0100 (6)
C40.0491 (8)0.0360 (7)0.0382 (7)0.0074 (6)0.0055 (6)0.0110 (5)
C50.0360 (7)0.0401 (7)0.0353 (7)0.0101 (6)0.0029 (5)0.0041 (5)
C60.0332 (6)0.0359 (6)0.0298 (6)0.0144 (5)0.0052 (5)0.0039 (5)
C70.0300 (6)0.0323 (6)0.0259 (6)0.0139 (5)0.0030 (4)0.0015 (4)
C80.0267 (6)0.0384 (7)0.0308 (6)0.0119 (5)0.0068 (5)0.0011 (5)
C90.0263 (6)0.0359 (6)0.0320 (6)0.0084 (5)0.0020 (5)0.0057 (5)
Geometric parameters (Å, º) top
O—C61.2169 (16)C4—C51.377 (2)
N1—C61.3614 (16)C4—H4A0.9300
N1—C11.4034 (16)C5—H5A0.9300
N1—H1A0.8600C6—C71.5009 (17)
N2—C11.3375 (17)C7—C81.3888 (17)
N2—C51.3403 (17)C7—C9i1.3936 (17)
C1—C21.3932 (18)C8—C91.3860 (17)
C2—C31.378 (2)C8—H8A0.9300
C2—H2B0.9300C9—C7i1.3936 (17)
C3—C41.384 (2)C9—H9A0.9300
C3—H3A0.9300
C6—N1—C1127.85 (11)N2—C5—C4123.77 (13)
C6—N1—H1A116.1N2—C5—H5A118.1
C1—N1—H1A116.1C4—C5—H5A118.1
C1—N2—C5117.11 (11)O—C6—N1124.94 (12)
N2—C1—C2123.38 (12)O—C6—C7120.89 (11)
N2—C1—N1112.88 (11)N1—C6—C7114.16 (11)
C2—C1—N1123.70 (12)C8—C7—C9i119.81 (11)
C3—C2—C1117.84 (13)C8—C7—C6118.37 (11)
C3—C2—H2B121.1C9i—C7—C6121.72 (11)
C1—C2—H2B121.1C9—C8—C7120.42 (12)
C2—C3—C4119.75 (13)C9—C8—H8A119.8
C2—C3—H3A120.1C7—C8—H8A119.8
C4—C3—H3A120.1C8—C9—C7i119.77 (11)
C5—C4—C3118.06 (13)C8—C9—H9A120.1
C5—C4—H4A121.0C7i—C9—H9A120.1
C3—C4—H4A121.0
Symmetry code: (i) x+2, y, z.
Hydrogen-bond geometry (Å, º) top
D—H···AD—HH···AD···AD—H···A
N1—H1A···N2ii0.862.343.1679 (15)163
Symmetry code: (ii) x+1, y, z+1.

Experimental details

Crystal data
Chemical formulaC18H14N4O2
Mr318.33
Crystal system, space groupTriclinic, P1
Temperature (K)298
a, b, c (Å)5.7895 (4), 7.8315 (6), 8.8460 (5)
α, β, γ (°)82.906 (6), 74.083 (5), 73.695 (6)
V3)369.72 (4)
Z1
Radiation typeMo Kα
µ (mm1)0.10
Crystal size (mm)0.60 × 0.60 × 0.56
Data collection
DiffractometerBruker P4
Absorption correctionψ scan
(XSCANS; Siemens, 1995)
Tmin, Tmax0.831, 0.851
No. of measured, independent and
observed [I > 2σ(I)] reflections
1962, 1787, 1521
Rint0.013
(sin θ/λ)max1)0.661
Refinement
R[F2 > 2σ(F2)], wR(F2), S 0.040, 0.112, 1.06
No. of reflections1787
No. of parameters110
H-atom treatmentH-atom parameters constrained
Δρmax, Δρmin (e Å3)0.32, 0.19

Computer programs: XSCANS (Siemens, 1995), SHELXTL (Sheldrick, 2008), SHELXS97 (Sheldrick, 2008), SHELXL97 (Sheldrick, 2008).

Hydrogen-bond geometry (Å, º) top
D—H···AD—HH···AD···AD—H···A
N1—H1A···N2i0.862.343.1679 (15)163
Symmetry code: (i) x+1, y, z+1.
 

Acknowledgements

We are grateful to the National Science Council of the Republic of China for support. This research was also supported by the project of the specific research fields in Chung-Yuan Christian University, Taiwan, under grant No. CYCU-98-CR—CH.

References

First citationSheldrick, G. M. (2008). Acta Cryst. A64, 112–122.  Web of Science CrossRef CAS IUCr Journals Google Scholar
First citationSiemens (1995). XSCANS. Siemens Analytical X-ray Instruments Inc., Madison, Wisconsin, USA.  Google Scholar
First citationTsai, T.-P., Huang, Y.-T., Ray, U., Chang, Y.-J., Cheng, P.-C., Wu, C.-J., Chen, J.-D. & Wang, J. C. (2010). Polyhedron, pp. 3081–3088.  Web of Science CSD CrossRef Google Scholar

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ISSN: 2056-9890
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