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ISSN: 2056-9890

2,4,6-Tri­methyl­pyridinium 4-nitro­benzoate–4-nitro­benzoic acid (1/1)

aDepartment of Chemistry, Government College University, Lahore 54000, Pakistan, and bDepartment of Physics, Faculty of Sciences, Erciyes University, 38039 Kayseri, Turkey
*Correspondence e-mail: akkurt@erciyes.edu.tr

(Received 27 July 2011; accepted 13 August 2011; online 27 August 2011)

The asymmetric unit of the title co-crystal, C8H12N+·C7H4NO4·C7H5NO4, contains two cations, two anions and two neutral 4-nitro­benzoic acid mol­ecules. In the crystal, O—H⋯O, N—H⋯O and C—H⋯O hydrogen bonds connect the ions and mol­ecules, forming a three-dimensional network.

Related literature

For related structures, see: Ishida et al. (2004[Ishida, H., Rahman, B. & Kashino, S. (2004). Acta Cryst. E60, o1661-o1663.]); Quah et al. (2008[Quah, C. K., Jebas, S. R. & Fun, H.-K. (2008). Acta Cryst. E64, o1878-o1879.]); Dong et al. (2010[Dong, G.-Y., Liu, X.-H., Liu, T.-F. & Khan, I. U. (2010). Acta Cryst. E66, o1485.]). 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.].

[Scheme 1]

Experimental

Crystal data
  • C8H12N+·C7H4NO4·C7H5NO4

  • Mr = 455.42

  • Orthorhombic, P c a 21

  • a = 14.4061 (15) Å

  • b = 8.4461 (10) Å

  • c = 36.787 (4) Å

  • V = 4476.1 (9) Å3

  • Z = 8

  • Mo Kα radiation

  • μ = 0.11 mm−1

  • T = 296 K

  • 0.54 × 0.44 × 0.37 mm

Data collection
  • Bruker APEXII CCD diffractometer

  • 23612 measured reflections

  • 5658 independent reflections

  • 2131 reflections with I > 2σ(I)

  • Rint = 0.090

Refinement
  • R[F2 > 2σ(F2)] = 0.044

  • wR(F2) = 0.102

  • S = 0.79

  • 5658 reflections

  • 602 parameters

  • 1 restraint

  • H atoms treated by a mixture of independent and constrained refinement

  • Δρmax = 0.18 e Å−3

  • Δρmin = −0.17 e Å−3

Table 1
Hydrogen-bond geometry (Å, °)

D—H⋯A D—H H⋯A DA D—H⋯A
N1E—H1E⋯O3Di 0.86 1.78 2.636 (4) 171
N1F—H1F⋯O4Ci 0.86 1.76 2.613 (4) 173
O4A—H1O⋯O4Dii 0.90 1.67 2.549 (5) 164
O4B—H2O⋯O3Ciii 0.90 1.65 2.536 (5) 165
C4E—H4E⋯O1Biv 0.93 2.58 3.398 (7) 147
C7E—H7K⋯O4Dv 0.96 2.57 3.475 (6) 156
C7E—H7L⋯O1Biv 0.96 2.55 3.455 (9) 158
Symmetry codes: (i) [x-{\script{1\over 2}}, -y+1, z]; (ii) [x-{\script{1\over 2}}, -y+1, z+1]; (iii) [-x+{\script{1\over 2}}, y, z+{\script{1\over 2}}]; (iv) [x+{\script{1\over 2}}, -y+1, z-1]; (v) x, y+1, z.

Data collection: APEX2 (Bruker, 2007[Bruker (2007). APEX2 and SAINT. Bruker AXS Inc., Madison, Wisconsin, USA.]); cell refinement: SAINT (Bruker, 2007[Bruker (2007). APEX2 and SAINT. 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: ORTEP-3 for Windows (Farrugia, 1997[Farrugia, L. J. (1997). J. Appl. Cryst. 30, 565.]); software used to prepare material for publication: WinGX (Farrugia, 1999[Farrugia, L. J. (1999). J. Appl. Cryst. 32, 837-838.]) and PLATON (Spek, 2009[Spek, A. L. (2009). Acta Cryst. D65, 148-155.]).

Supporting information


Comment top

The asymmetric unit of the title co-crystal, (I), contains two molecules of 2,4,6-trimethylpyridinium 4-nitrobenzoate and 4-nitrobenzoic acid (Fig. 1). All bond lengths and bond angles are as expected for this kind of compounds (Allen et al., 1987).

In the structure, the molecular packing is stabilized by intermolecular O—H···O, N—H···O and C—H···O hydrogen bonds, forming a three dimensional network (Table 1, Figs. 2 & 3).

Related literature top

For related structures, see: Ishida et al. (2004); Quah et al. (2008); Dong et al. (2010). For bond-length data, see: Allen et al. (1987).

Experimental top

10 ml of ethanol were taken in 25 ml round bottom flask and 1.25 g of p-nitrobenzoic acid were added and suspension was heated to homogenize the mixture. Then 1 ml of sym-collidine (2,4,6-trimethylpyridine) was added and this mixture was refluxed for 1.5 h. Then this solution was concentrated on water bath to half amount and poured into sample vial and left for crystallization. On crystallization, colourless prisms of (I) were obtained.

Refinement top

The H atoms of the NH and OH groups in the title compound were placed in a difference map and refined with the distance restraint N—–H = 0.86 and O—–H = 0.90 Å; their Uiso values were constrained to be 1.2Ueq of the carrier atom. The remaining H atoms were positioned geometrically [C—H = 0.93 - 0.96 Å] and refined using a riding model, withUiso(H). = 1.2 Ueq(C) and 1.5 Ueq(Cmethyl). The structure was refined with Friedel pairs merged by the use of the MERG 4 instruction in SHELXL97, as the lack of anomalous scatterers did not allow the determination of the absolute configuration from the X-ray measurements. Two reflections 002 and 004 were omitted in the final refinement as these were obscured by beam stop.

Computing details top

Data collection: APEX2 (Bruker, 2007); cell refinement: SAINT (Bruker, 2007); data reduction: SAINT (Bruker, 2007); program(s) used to solve structure: SHELXS97 (Sheldrick, 2008); program(s) used to refine structure: SHELXL97 (Sheldrick, 2008); molecular graphics: ORTEP-3 for Windows (Farrugia, 1997); software used to prepare material for publication: WinGX (Farrugia, 1999) and PLATON (Spek, 2009).

Figures top
[Figure 1] Fig. 1. The molecules in the asymmetric unit of the title compound shown with 30% probability displacement ellipsoids. For clarity, only N atoms are labelled.
[Figure 2] Fig. 2. View of the packing and hydrogen bonding of the title compound down the a axis. H atoms not involved in hydrogen bonding have been omitted for clarity.
[Figure 3] Fig. 3. View of the packing and hydrogen bonding of the title compound down the b axis. H atoms not involved in hydrogen bonding have been omitted for clarity.
2,4,6-Trimethylpyridinium 4-nitrobenzoate–4-nitrobenzoic acid (1/1) top
Crystal data top
C8H12N+·C7H4NO4·C7H5NO4F(000) = 1904
Mr = 455.42Dx = 1.352 Mg m3
Orthorhombic, Pca21Mo Kα radiation, λ = 0.71073 Å
Hall symbol: P 2c -2acCell parameters from 2857 reflections
a = 14.4061 (15) Åθ = 2.7–20.2°
b = 8.4461 (10) ŵ = 0.11 mm1
c = 36.787 (4) ÅT = 296 K
V = 4476.1 (9) Å3Prism, colourless
Z = 80.54 × 0.44 × 0.37 mm
Data collection top
Bruker APEXII CCD
diffractometer
2131 reflections with I > 2σ(I)
Radiation source: sealed tubeRint = 0.090
Graphite monochromatorθmax = 28.3°, θmin = 2.4°
ϕ and ω scansh = 1910
23612 measured reflectionsk = 119
5658 independent reflectionsl = 4149
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)] = 0.044H atoms treated by a mixture of independent and constrained refinement
wR(F2) = 0.102 w = 1/[σ2(Fo2) + (0.0372P)2]
where P = (Fo2 + 2Fc2)/3
S = 0.79(Δ/σ)max < 0.001
5658 reflectionsΔρmax = 0.18 e Å3
602 parametersΔρmin = 0.17 e Å3
1 restraintExtinction correction: SHELXL97 (Sheldrick, 2008), FC*=KFC[1+0.001XFC2Λ3/SIN(2Θ)]-1/4
Primary atom site location: structure-invariant direct methodsExtinction coefficient: 0.0019 (3)
Crystal data top
C8H12N+·C7H4NO4·C7H5NO4V = 4476.1 (9) Å3
Mr = 455.42Z = 8
Orthorhombic, Pca21Mo Kα radiation
a = 14.4061 (15) ŵ = 0.11 mm1
b = 8.4461 (10) ÅT = 296 K
c = 36.787 (4) Å0.54 × 0.44 × 0.37 mm
Data collection top
Bruker APEXII CCD
diffractometer
2131 reflections with I > 2σ(I)
23612 measured reflectionsRint = 0.090
5658 independent reflections
Refinement top
R[F2 > 2σ(F2)] = 0.0441 restraint
wR(F2) = 0.102H atoms treated by a mixture of independent and constrained refinement
S = 0.79Δρmax = 0.18 e Å3
5658 reflectionsΔρmin = 0.17 e Å3
602 parameters
Special details top

Geometry. Bond distances, angles etc. have been calculated using the rounded fractional coordinates. All su's are estimated from the variances of the (full) variance-covariance matrix. The cell e.s.d.'s are taken into account in the estimation of distances, angles and torsion angles

Refinement. Refinement on F2 for ALL reflections except those flagged by the user for potential systematic errors. Weighted R-factors wR and all goodnesses of fit S are based on F2, conventional R-factors R are based on F, with F set to zero for negative F2. The observed criterion of F2 > σ(F2) is used only for calculating -R-factor-obs 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
N1E0.0951 (2)0.6583 (4)0.01485 (10)0.0507 (13)
C1E0.1321 (3)0.7651 (5)0.03852 (14)0.0500 (19)
C2E0.2221 (3)0.8086 (6)0.03352 (15)0.0610 (19)
C3E0.2737 (3)0.7498 (6)0.00536 (15)0.0580 (18)
C4E0.2331 (3)0.6421 (5)0.01785 (14)0.0553 (16)
C5E0.1438 (3)0.5961 (5)0.01280 (13)0.0497 (16)
C6E0.0701 (3)0.8265 (6)0.06769 (13)0.0703 (19)
C7E0.3732 (3)0.7980 (6)0.00030 (18)0.089 (3)
C8E0.0923 (3)0.4817 (6)0.03699 (16)0.071 (2)
N1F0.1353 (2)0.8367 (4)0.22390 (10)0.0447 (13)
C1F0.0849 (3)0.8986 (5)0.25124 (13)0.0483 (16)
C2F0.0058 (3)0.8497 (5)0.25489 (13)0.0560 (17)
C3F0.0433 (3)0.7401 (6)0.23086 (16)0.0597 (19)
C4F0.0131 (3)0.6816 (5)0.20373 (14)0.0567 (19)
C5F0.1040 (3)0.7304 (5)0.20001 (15)0.0487 (19)
C6F0.1295 (3)1.0153 (6)0.27559 (17)0.072 (2)
C7F0.1435 (3)0.6847 (7)0.23554 (19)0.096 (3)
C8F0.1693 (3)0.6715 (6)0.17190 (15)0.073 (2)
O1A0.3337 (3)0.8459 (7)0.82422 (15)0.140 (3)
O2A0.4000 (3)1.0348 (7)0.85151 (18)0.154 (3)
O3A0.0552 (2)1.0121 (4)0.98158 (12)0.0765 (15)
O4A0.01771 (19)0.8303 (4)0.94775 (9)0.0700 (11)
N1A0.3371 (4)0.9421 (8)0.84779 (16)0.098 (3)
C1A0.1158 (3)0.8436 (6)0.89404 (15)0.064 (2)
C2A0.1873 (3)0.8444 (6)0.86886 (14)0.0713 (19)
C3A0.2605 (3)0.9417 (7)0.87478 (14)0.065 (2)
C4A0.2678 (3)1.0374 (6)0.90457 (16)0.070 (2)
C5A0.1970 (3)1.0351 (6)0.92933 (16)0.064 (2)
C6A0.1205 (3)0.9379 (5)0.92473 (13)0.0490 (18)
C7A0.0485 (3)0.9338 (6)0.95380 (16)0.0563 (19)
O1B0.1107 (3)0.3497 (8)0.91296 (15)0.150 (3)
O2B0.1729 (4)0.5467 (7)0.88524 (17)0.160 (3)
O3B0.1768 (2)0.5131 (4)0.75805 (11)0.0763 (16)
O4B0.2464 (2)0.3288 (4)0.79171 (9)0.0753 (11)
N1B0.1128 (4)0.4515 (8)0.88884 (17)0.097 (2)
C1B0.1109 (3)0.3415 (6)0.84378 (15)0.066 (2)
C2B0.0394 (3)0.3459 (6)0.86889 (15)0.075 (2)
C3B0.0337 (3)0.4471 (7)0.86285 (16)0.067 (2)
C4B0.0389 (3)0.5436 (6)0.83350 (18)0.077 (2)
C5B0.0330 (3)0.5380 (6)0.80844 (14)0.0640 (19)
C6B0.1076 (3)0.4385 (6)0.81337 (15)0.0530 (19)
C7B0.1806 (3)0.4309 (7)0.78477 (16)0.060 (2)
O1C0.2126 (3)0.0101 (5)0.11550 (15)0.111 (2)
O2C0.2654 (2)0.2206 (6)0.14139 (12)0.109 (2)
O3C0.1291 (2)0.2807 (5)0.24426 (12)0.0857 (16)
O4C0.19185 (19)0.0829 (4)0.21284 (11)0.0787 (13)
N1C0.2061 (3)0.1190 (7)0.13629 (14)0.079 (2)
C1C0.0359 (3)0.0609 (6)0.16908 (14)0.0567 (18)
C2C0.0454 (3)0.0446 (6)0.14892 (13)0.0603 (17)
C3C0.1192 (3)0.1379 (6)0.15836 (14)0.0550 (18)
C4C0.1162 (3)0.2450 (6)0.18644 (15)0.0570 (19)
C5C0.0356 (3)0.2575 (6)0.20585 (14)0.0513 (17)
C6C0.0404 (3)0.1651 (5)0.19758 (12)0.0453 (16)
C7C0.1274 (3)0.1787 (6)0.22040 (16)0.0597 (19)
O1D0.0520 (2)0.2967 (5)0.08810 (10)0.0843 (15)
O2D0.0105 (3)0.4724 (6)0.12218 (15)0.116 (2)
O3D0.41943 (19)0.4058 (4)0.02846 (10)0.0757 (13)
O4D0.3581 (2)0.2083 (4)0.00369 (11)0.0883 (18)
N1D0.0139 (3)0.3771 (6)0.09787 (13)0.0653 (17)
C1D0.1914 (3)0.2332 (5)0.03318 (14)0.0507 (19)
C2D0.1092 (3)0.2513 (5)0.05167 (14)0.0550 (19)
C3D0.1047 (3)0.3539 (5)0.08009 (13)0.0497 (17)
C4D0.1804 (3)0.4396 (6)0.09091 (13)0.0587 (17)
C5D0.2617 (3)0.4257 (5)0.07166 (14)0.0570 (19)
C6D0.2680 (2)0.3227 (5)0.04234 (13)0.0473 (16)
C7D0.3560 (3)0.3117 (6)0.02039 (15)0.0583 (19)
H1E0.038300.629600.017700.0610*
H2E0.249200.879900.049600.0730*
H4E0.267100.600700.037100.0660*
H6K0.043900.739300.080900.1050*
H6L0.021200.888000.057000.1050*
H6M0.105400.892000.084000.1050*
H7K0.379900.908600.005700.1330*
H7L0.391500.778800.024400.1330*
H7M0.411900.737300.016400.1330*
H8K0.027800.509800.037700.1070*
H8L0.098800.376300.027600.1070*
H8M0.117600.486300.061100.1070*
H1F0.191800.867900.221700.0530*
H2F0.042300.890400.273600.0670*
H4F0.010700.607400.187500.0680*
H6P0.083901.058200.291900.1080*
H6R0.177500.964200.289300.1080*
H6S0.155901.099100.261300.1080*
H7P0.157100.604500.217800.1440*
H7R0.151600.642000.259500.1440*
H7S0.184800.772700.232200.1440*
H8P0.191700.758900.157700.1100*
H8R0.220700.619600.183500.1100*
H8S0.137900.597800.156300.1100*
H1A0.064300.779300.890300.0770*
H1O0.055700.829000.967200.0840*
H2A0.185100.779800.848400.0850*
H4A0.319301.102100.907900.0840*
H5A0.200401.100200.949700.0760*
H1B0.161000.273800.847300.0790*
H2B0.040700.281700.889400.0890*
H2O0.282700.310800.772200.0900*
H4B0.089100.611400.830200.0920*
H5B0.030800.602600.788000.0770*
H1C0.087700.000400.163100.0680*
H2C0.049400.026900.129800.0730*
H4C0.167400.307300.192100.0680*
H5C0.032000.329400.224900.0610*
H1D0.195400.160000.014400.0610*
H2D0.057100.193800.044800.0660*
H4D0.176900.506200.111000.0700*
H5D0.313000.485900.078300.0680*
Atomic displacement parameters (Å2) top
U11U22U33U12U13U23
N1E0.0350 (17)0.054 (2)0.063 (3)0.0029 (18)0.000 (2)0.007 (2)
C1E0.046 (3)0.051 (3)0.053 (4)0.004 (2)0.000 (3)0.002 (3)
C2E0.045 (3)0.061 (3)0.077 (4)0.006 (2)0.009 (3)0.006 (3)
C3E0.041 (2)0.065 (3)0.068 (4)0.001 (2)0.001 (3)0.015 (3)
C4E0.041 (2)0.066 (3)0.059 (3)0.007 (2)0.010 (2)0.011 (3)
C5E0.047 (2)0.055 (3)0.047 (3)0.006 (2)0.006 (2)0.002 (2)
C6E0.074 (3)0.075 (3)0.062 (4)0.012 (3)0.006 (3)0.006 (3)
C7E0.043 (3)0.089 (4)0.135 (6)0.015 (3)0.002 (3)0.027 (4)
C8E0.067 (3)0.067 (4)0.079 (5)0.009 (3)0.003 (3)0.013 (3)
N1F0.0351 (17)0.050 (2)0.049 (3)0.0017 (17)0.0008 (18)0.004 (2)
C1F0.047 (2)0.048 (3)0.050 (3)0.004 (2)0.004 (2)0.005 (2)
C2F0.049 (3)0.062 (3)0.057 (3)0.008 (3)0.009 (2)0.008 (3)
C3F0.046 (3)0.047 (3)0.086 (4)0.005 (2)0.004 (3)0.023 (3)
C4F0.060 (3)0.045 (3)0.065 (4)0.004 (2)0.011 (3)0.000 (3)
C5F0.049 (3)0.045 (3)0.052 (4)0.003 (2)0.010 (2)0.006 (3)
C6F0.075 (3)0.075 (4)0.066 (4)0.005 (3)0.010 (3)0.017 (3)
C7F0.041 (3)0.101 (4)0.146 (6)0.012 (3)0.009 (3)0.020 (4)
C8F0.075 (3)0.068 (4)0.076 (4)0.004 (3)0.024 (3)0.014 (3)
O1A0.107 (3)0.218 (6)0.095 (4)0.017 (4)0.043 (3)0.028 (4)
O2A0.093 (3)0.212 (6)0.157 (6)0.040 (4)0.056 (3)0.017 (5)
O3A0.0626 (19)0.092 (3)0.075 (3)0.0027 (19)0.017 (2)0.018 (2)
O4A0.0501 (16)0.091 (2)0.069 (2)0.0086 (18)0.0127 (17)0.008 (2)
N1A0.070 (3)0.147 (6)0.076 (4)0.011 (3)0.023 (3)0.006 (4)
C1A0.059 (3)0.073 (4)0.059 (4)0.015 (3)0.003 (3)0.003 (3)
C2A0.070 (3)0.093 (4)0.051 (3)0.004 (3)0.011 (3)0.009 (3)
C3A0.053 (3)0.088 (4)0.054 (4)0.011 (3)0.014 (3)0.011 (3)
C4A0.056 (3)0.090 (4)0.064 (4)0.013 (3)0.007 (3)0.001 (4)
C5A0.058 (3)0.068 (4)0.065 (4)0.008 (3)0.012 (3)0.005 (3)
C6A0.041 (2)0.053 (3)0.053 (4)0.006 (2)0.005 (2)0.006 (3)
C7A0.041 (3)0.058 (3)0.070 (4)0.005 (2)0.001 (3)0.010 (3)
O1B0.120 (4)0.241 (7)0.090 (4)0.000 (4)0.045 (3)0.029 (4)
O2B0.116 (4)0.209 (6)0.155 (5)0.065 (4)0.064 (4)0.015 (5)
O3B0.067 (2)0.096 (3)0.066 (3)0.007 (2)0.021 (2)0.018 (2)
O4B0.0538 (18)0.103 (2)0.069 (2)0.0109 (19)0.0072 (17)0.021 (2)
N1B0.081 (3)0.140 (5)0.070 (4)0.011 (3)0.022 (3)0.002 (4)
C1B0.059 (3)0.081 (4)0.058 (4)0.006 (3)0.000 (3)0.007 (3)
C2B0.076 (3)0.094 (4)0.054 (4)0.005 (3)0.003 (3)0.007 (3)
C3B0.055 (3)0.094 (4)0.053 (4)0.007 (3)0.005 (3)0.013 (3)
C4B0.066 (3)0.087 (4)0.078 (5)0.009 (3)0.005 (3)0.002 (4)
C5B0.063 (3)0.070 (3)0.059 (4)0.005 (3)0.013 (3)0.007 (3)
C6B0.049 (3)0.059 (3)0.051 (4)0.008 (2)0.001 (2)0.006 (3)
C7B0.046 (3)0.070 (4)0.065 (4)0.010 (3)0.004 (3)0.017 (3)
O1C0.121 (3)0.101 (4)0.111 (4)0.011 (3)0.064 (3)0.004 (3)
O2C0.067 (2)0.128 (4)0.131 (4)0.016 (2)0.037 (2)0.025 (3)
O3C0.068 (2)0.095 (3)0.094 (3)0.011 (2)0.029 (2)0.025 (3)
O4C0.0420 (17)0.074 (2)0.120 (3)0.0020 (18)0.0133 (19)0.005 (2)
N1C0.063 (3)0.089 (4)0.084 (4)0.000 (3)0.013 (3)0.028 (3)
C1C0.040 (2)0.061 (3)0.069 (4)0.002 (2)0.003 (2)0.003 (3)
C2C0.070 (3)0.060 (3)0.051 (3)0.007 (3)0.007 (3)0.003 (3)
C3C0.041 (2)0.059 (3)0.065 (4)0.001 (2)0.015 (2)0.015 (3)
C4C0.048 (3)0.054 (3)0.069 (4)0.009 (2)0.006 (3)0.010 (3)
C5C0.048 (3)0.054 (3)0.052 (3)0.006 (2)0.005 (3)0.001 (3)
C6C0.039 (2)0.043 (3)0.054 (3)0.005 (2)0.001 (2)0.003 (2)
C7C0.041 (3)0.059 (3)0.079 (4)0.013 (3)0.007 (3)0.014 (3)
O1D0.0528 (18)0.106 (3)0.094 (3)0.001 (2)0.019 (2)0.023 (2)
O2D0.115 (3)0.130 (4)0.102 (4)0.011 (3)0.053 (3)0.024 (3)
O3D0.0381 (15)0.082 (2)0.107 (3)0.0000 (17)0.0182 (18)0.013 (2)
O4D0.067 (2)0.090 (3)0.108 (4)0.003 (2)0.035 (2)0.036 (3)
N1D0.066 (3)0.072 (3)0.058 (3)0.014 (2)0.025 (2)0.016 (3)
C1D0.046 (3)0.047 (3)0.059 (4)0.003 (2)0.012 (3)0.003 (3)
C2D0.038 (3)0.058 (3)0.069 (4)0.005 (2)0.012 (2)0.006 (3)
C3D0.048 (3)0.052 (3)0.049 (3)0.013 (2)0.013 (2)0.015 (3)
C4D0.061 (3)0.060 (3)0.055 (3)0.003 (3)0.008 (2)0.010 (3)
C5D0.048 (3)0.063 (3)0.060 (4)0.001 (2)0.008 (3)0.005 (3)
C6D0.038 (2)0.048 (3)0.056 (3)0.008 (2)0.007 (2)0.007 (3)
C7D0.042 (3)0.057 (3)0.076 (4)0.006 (3)0.006 (3)0.000 (3)
Geometric parameters (Å, º) top
O1A—N1A1.189 (9)C4F—H4F0.9300
O2A—N1A1.205 (8)C6F—H6P0.9600
O3A—C7A1.221 (7)C6F—H6R0.9600
O4A—C7A1.313 (6)C6F—H6S0.9600
O4A—H1O0.9000C7F—H7S0.9600
O1B—N1B1.236 (9)C7F—H7P0.9600
O2B—N1B1.189 (9)C7F—H7R0.9600
O3B—C7B1.205 (7)C8F—H8P0.9600
O4B—C7B1.307 (6)C8F—H8S0.9600
O4B—H2O0.9000C8F—H8R0.9600
O1C—N1C1.200 (7)C1A—C6A1.383 (7)
O2C—N1C1.225 (7)C1A—C2A1.385 (7)
O3C—C7C1.230 (7)C2A—C3A1.355 (7)
O4C—C7C1.263 (6)C3A—C4A1.366 (8)
O1D—N1D1.221 (6)C4A—C5A1.368 (7)
N1E—C1E1.362 (6)C5A—C6A1.385 (6)
N1E—C5E1.343 (6)C6A—C7A1.490 (7)
O2D—N1D1.204 (7)C1A—H1A0.9300
O3D—C7D1.247 (6)C2A—H2A0.9300
O4D—C7D1.244 (6)C4A—H4A0.9300
N1E—H1E0.8600C5A—H5A0.9300
N1F—C5F1.335 (6)C1B—C6B1.387 (8)
N1F—C1F1.346 (6)C1B—C2B1.384 (7)
N1F—H1F0.8600C2B—C3B1.374 (7)
N1A—C3A1.484 (7)C3B—C4B1.355 (8)
N1B—C3B1.488 (8)C4B—C5B1.387 (7)
N1C—C3C1.501 (6)C5B—C6B1.376 (7)
N1D—C3D1.476 (6)C6B—C7B1.489 (7)
C1E—C2E1.360 (6)C1B—H1B0.9300
C1E—C6E1.489 (7)C2B—H2B0.9300
C2E—C3E1.368 (7)C4B—H4B0.9300
C3E—C7E1.502 (6)C5B—H5B0.9300
C3E—C4E1.378 (7)C1C—C2C1.393 (6)
C4E—C5E1.357 (6)C1C—C6C1.370 (7)
C5E—C8E1.509 (7)C2C—C3C1.368 (7)
C2E—H2E0.9300C3C—C4C1.374 (7)
C4E—H4E0.9300C4C—C5C1.367 (7)
C6E—H6L0.9600C5C—C6C1.379 (6)
C6E—H6K0.9600C6C—C7C1.513 (7)
C6E—H6M0.9600C1C—H1C0.9300
C7E—H7M0.9600C2C—H2C0.9300
C7E—H7K0.9600C4C—H4C0.9300
C7E—H7L0.9600C5C—H5C0.9300
C8E—H8M0.9600C1D—C2D1.374 (6)
C8E—H8L0.9600C1D—C6D1.379 (6)
C8E—H8K0.9600C2D—C3D1.360 (7)
C1F—C6F1.479 (7)C3D—C4D1.368 (6)
C1F—C2F1.377 (6)C4D—C5D1.374 (6)
C2F—C3F1.389 (7)C5D—C6D1.389 (7)
C3F—C4F1.379 (7)C6D—C7D1.506 (6)
C3F—C7F1.527 (6)C1D—H1D0.9300
C4F—C5F1.380 (6)C2D—H2D0.9300
C5F—C8F1.484 (7)C4D—H4D0.9300
C2F—H2F0.9300C5D—H5D0.9300
C7A—O4A—H1O108.00C5F—C8F—H8P110.00
C7B—O4B—H2O112.00C2A—C1A—C6A120.4 (4)
C1E—N1E—C5E122.6 (3)C1A—C2A—C3A118.3 (5)
C1E—N1E—H1E119.00C2A—C3A—C4A123.2 (5)
C5E—N1E—H1E119.00N1A—C3A—C4A118.6 (5)
C1F—N1F—C5F124.8 (3)N1A—C3A—C2A118.2 (5)
C5F—N1F—H1F118.00C3A—C4A—C5A117.9 (4)
C1F—N1F—H1F118.00C4A—C5A—C6A121.4 (5)
O2A—N1A—C3A119.0 (6)C5A—C6A—C7A118.7 (4)
O1A—N1A—O2A123.9 (6)C1A—C6A—C7A122.6 (4)
O1A—N1A—C3A117.1 (6)C1A—C6A—C5A118.7 (4)
O2B—N1B—C3B120.2 (6)O3A—C7A—O4A124.1 (5)
O1B—N1B—C3B115.2 (5)O4A—C7A—C6A113.6 (4)
O1B—N1B—O2B124.6 (6)O3A—C7A—C6A122.2 (4)
O1C—N1C—O2C125.5 (5)C2A—C1A—H1A120.00
O2C—N1C—C3C115.1 (5)C6A—C1A—H1A120.00
O1C—N1C—C3C119.4 (5)C3A—C2A—H2A121.00
O1D—N1D—C3D119.0 (4)C1A—C2A—H2A121.00
O2D—N1D—C3D117.0 (4)C3A—C4A—H4A121.00
O1D—N1D—O2D124.0 (5)C5A—C4A—H4A121.00
N1E—C1E—C2E117.7 (4)C6A—C5A—H5A119.00
N1E—C1E—C6E117.2 (4)C4A—C5A—H5A119.00
C2E—C1E—C6E125.1 (4)C2B—C1B—C6B119.8 (4)
C1E—C2E—C3E121.5 (5)C1B—C2B—C3B118.6 (5)
C2E—C3E—C4E118.6 (4)C2B—C3B—C4B123.1 (5)
C2E—C3E—C7E120.9 (5)N1B—C3B—C4B117.0 (5)
C4E—C3E—C7E120.5 (5)N1B—C3B—C2B119.9 (5)
C3E—C4E—C5E120.5 (4)C3B—C4B—C5B117.9 (4)
N1E—C5E—C8E116.1 (4)C4B—C5B—C6B121.1 (5)
N1E—C5E—C4E119.2 (4)C5B—C6B—C7B119.0 (5)
C4E—C5E—C8E124.7 (4)C1B—C6B—C7B121.3 (4)
C1E—C2E—H2E119.00C1B—C6B—C5B119.6 (4)
C3E—C2E—H2E119.00O4B—C7B—C6B113.8 (5)
C5E—C4E—H4E120.00O3B—C7B—C6B121.3 (4)
C3E—C4E—H4E120.00O3B—C7B—O4B124.9 (5)
H6K—C6E—H6L110.00C2B—C1B—H1B120.00
H6L—C6E—H6M109.00C6B—C1B—H1B120.00
C1E—C6E—H6M109.00C3B—C2B—H2B121.00
C1E—C6E—H6L109.00C1B—C2B—H2B121.00
C1E—C6E—H6K109.00C3B—C4B—H4B121.00
H6K—C6E—H6M109.00C5B—C4B—H4B121.00
C3E—C7E—H7K110.00C6B—C5B—H5B119.00
H7L—C7E—H7M109.00C4B—C5B—H5B119.00
H7K—C7E—H7L109.00C2C—C1C—C6C120.7 (4)
C3E—C7E—H7M109.00C1C—C2C—C3C117.5 (5)
C3E—C7E—H7L109.00N1C—C3C—C2C116.7 (5)
H7K—C7E—H7M109.00N1C—C3C—C4C120.2 (4)
C5E—C8E—H8K110.00C2C—C3C—C4C123.1 (4)
C5E—C8E—H8M109.00C3C—C4C—C5C118.1 (4)
C5E—C8E—H8L110.00C4C—C5C—C6C121.0 (5)
H8L—C8E—H8M109.00C5C—C6C—C7C119.5 (4)
H8K—C8E—H8L110.00C1C—C6C—C7C120.8 (4)
H8K—C8E—H8M109.00C1C—C6C—C5C119.7 (4)
C2F—C1F—C6F123.6 (4)O3C—C7C—O4C126.3 (5)
N1F—C1F—C2F117.9 (4)O3C—C7C—C6C117.8 (4)
N1F—C1F—C6F118.5 (4)O4C—C7C—C6C116.0 (5)
C1F—C2F—C3F120.5 (4)C2C—C1C—H1C120.00
C2F—C3F—C7F120.0 (5)C6C—C1C—H1C120.00
C4F—C3F—C7F121.9 (5)C3C—C2C—H2C121.00
C2F—C3F—C4F118.1 (4)C1C—C2C—H2C121.00
C3F—C4F—C5F121.6 (4)C3C—C4C—H4C121.00
C4F—C5F—C8F124.8 (4)C5C—C4C—H4C121.00
N1F—C5F—C8F118.1 (4)C4C—C5C—H5C119.00
N1F—C5F—C4F117.2 (4)C6C—C5C—H5C119.00
C3F—C2F—H2F120.00C2D—C1D—C6D120.5 (4)
C1F—C2F—H2F120.00C1D—C2D—C3D119.5 (4)
C5F—C4F—H4F119.00N1D—C3D—C2D117.9 (4)
C3F—C4F—H4F119.00N1D—C3D—C4D120.5 (4)
H6P—C6F—H6S110.00C2D—C3D—C4D121.5 (4)
C1F—C6F—H6P109.00C3D—C4D—C5D119.0 (4)
H6R—C6F—H6S110.00C4D—C5D—C6D120.6 (4)
C1F—C6F—H6S109.00C1D—C6D—C5D118.7 (4)
C1F—C6F—H6R109.00C1D—C6D—C7D120.6 (4)
H6P—C6F—H6R110.00C5D—C6D—C7D120.7 (4)
H7P—C7F—H7S109.00O3D—C7D—O4D126.8 (4)
C3F—C7F—H7R109.00O3D—C7D—C6D116.7 (4)
H7P—C7F—H7R110.00O4D—C7D—C6D116.5 (4)
C3F—C7F—H7P109.00C2D—C1D—H1D120.00
H7R—C7F—H7S109.00C6D—C1D—H1D120.00
C3F—C7F—H7S110.00C1D—C2D—H2D120.00
H8P—C8F—H8S109.00C3D—C2D—H2D120.00
H8R—C8F—H8S109.00C3D—C4D—H4D121.00
C5F—C8F—H8R109.00C5D—C4D—H4D120.00
C5F—C8F—H8S110.00C4D—C5D—H5D120.00
H8P—C8F—H8R109.00C6D—C5D—H5D120.00
C5E—N1E—C1E—C2E0.2 (6)C4A—C5A—C6A—C7A176.4 (5)
C5E—N1E—C1E—C6E179.2 (4)C4A—C5A—C6A—C1A1.0 (7)
C1E—N1E—C5E—C4E0.8 (6)C5A—C6A—C7A—O3A0.6 (7)
C1E—N1E—C5E—C8E178.9 (4)C5A—C6A—C7A—O4A175.8 (4)
C5F—N1F—C1F—C2F0.3 (7)C1A—C6A—C7A—O3A176.6 (5)
C1F—N1F—C5F—C8F178.7 (4)C1A—C6A—C7A—O4A1.5 (7)
C5F—N1F—C1F—C6F179.9 (4)C2B—C1B—C6B—C5B0.2 (8)
C1F—N1F—C5F—C4F0.3 (7)C6B—C1B—C2B—C3B0.2 (8)
O2A—N1A—C3A—C4A5.4 (9)C2B—C1B—C6B—C7B176.7 (5)
O1A—N1A—C3A—C4A172.2 (6)C1B—C2B—C3B—C4B0.3 (8)
O1A—N1A—C3A—C2A6.8 (8)C1B—C2B—C3B—N1B178.4 (5)
O2A—N1A—C3A—C2A175.6 (6)N1B—C3B—C4B—C5B178.3 (5)
O1B—N1B—C3B—C4B172.2 (6)C2B—C3B—C4B—C5B0.5 (8)
O2B—N1B—C3B—C4B6.7 (9)C3B—C4B—C5B—C6B0.5 (8)
O1B—N1B—C3B—C2B6.6 (9)C4B—C5B—C6B—C7B176.9 (5)
O2B—N1B—C3B—C2B174.5 (6)C4B—C5B—C6B—C1B0.3 (8)
O1C—N1C—C3C—C4C169.2 (5)C1B—C6B—C7B—O3B178.6 (5)
O1C—N1C—C3C—C2C11.0 (8)C5B—C6B—C7B—O3B2.1 (8)
O2C—N1C—C3C—C4C11.1 (7)C1B—C6B—C7B—O4B1.3 (7)
O2C—N1C—C3C—C2C168.7 (5)C5B—C6B—C7B—O4B177.8 (5)
O2D—N1D—C3D—C2D177.5 (5)C6C—C1C—C2C—C3C1.0 (7)
O1D—N1D—C3D—C2D4.7 (7)C2C—C1C—C6C—C5C1.6 (7)
O2D—N1D—C3D—C4D0.8 (7)C2C—C1C—C6C—C7C177.7 (5)
O1D—N1D—C3D—C4D178.6 (5)C1C—C2C—C3C—C4C0.0 (8)
C6E—C1E—C2E—C3E178.1 (5)C1C—C2C—C3C—N1C179.9 (5)
N1E—C1E—C2E—C3E1.1 (7)C2C—C3C—C4C—C5C0.4 (8)
C1E—C2E—C3E—C4E1.1 (8)N1C—C3C—C4C—C5C179.8 (5)
C1E—C2E—C3E—C7E179.6 (5)C3C—C4C—C5C—C6C0.2 (8)
C2E—C3E—C4E—C5E0.2 (7)C4C—C5C—C6C—C7C178.1 (5)
C7E—C3E—C4E—C5E178.6 (5)C4C—C5C—C6C—C1C1.1 (7)
C3E—C4E—C5E—C8E178.7 (5)C1C—C6C—C7C—O3C175.9 (5)
C3E—C4E—C5E—N1E0.8 (7)C1C—C6C—C7C—O4C4.0 (7)
N1F—C1F—C2F—C3F0.2 (7)C5C—C6C—C7C—O3C4.8 (7)
C6F—C1F—C2F—C3F179.7 (5)C5C—C6C—C7C—O4C175.3 (5)
C1F—C2F—C3F—C7F179.0 (5)C6D—C1D—C2D—C3D2.6 (7)
C1F—C2F—C3F—C4F0.6 (7)C2D—C1D—C6D—C7D175.5 (4)
C2F—C3F—C4F—C5F0.6 (7)C2D—C1D—C6D—C5D3.0 (7)
C7F—C3F—C4F—C5F179.0 (5)C1D—C2D—C3D—N1D176.5 (4)
C3F—C4F—C5F—C8F179.1 (5)C1D—C2D—C3D—C4D0.3 (7)
C3F—C4F—C5F—N1F0.2 (7)N1D—C3D—C4D—C5D174.1 (4)
C2A—C1A—C6A—C7A176.0 (5)C2D—C3D—C4D—C5D2.5 (7)
C6A—C1A—C2A—C3A1.2 (7)C3D—C4D—C5D—C6D2.0 (7)
C2A—C1A—C6A—C5A1.3 (7)C4D—C5D—C6D—C1D0.8 (7)
C1A—C2A—C3A—N1A179.9 (5)C4D—C5D—C6D—C7D177.8 (4)
C1A—C2A—C3A—C4A0.9 (8)C1D—C6D—C7D—O3D174.1 (4)
N1A—C3A—C4A—C5A179.6 (5)C1D—C6D—C7D—O4D6.6 (7)
C2A—C3A—C4A—C5A0.6 (8)C5D—C6D—C7D—O3D4.4 (7)
C3A—C4A—C5A—C6A0.7 (8)C5D—C6D—C7D—O4D174.9 (4)
Hydrogen-bond geometry (Å, º) top
D—H···AD—HH···AD···AD—H···A
N1E—H1E···O3Di0.861.782.636 (4)171
N1F—H1F···O4Ci0.861.762.613 (4)173
O4A—H1O···O4Dii0.901.672.549 (5)164
O4B—H2O···O3Ciii0.901.652.536 (5)165
C4E—H4E···O1Biv0.932.583.398 (7)147
C7E—H7K···O4Dv0.962.573.475 (6)156
C7E—H7L···O1Biv0.962.553.455 (9)158
Symmetry codes: (i) x1/2, y+1, z; (ii) x1/2, y+1, z+1; (iii) x+1/2, y, z+1/2; (iv) x+1/2, y+1, z1; (v) x, y+1, z.

Experimental details

Crystal data
Chemical formulaC8H12N+·C7H4NO4·C7H5NO4
Mr455.42
Crystal system, space groupOrthorhombic, Pca21
Temperature (K)296
a, b, c (Å)14.4061 (15), 8.4461 (10), 36.787 (4)
V3)4476.1 (9)
Z8
Radiation typeMo Kα
µ (mm1)0.11
Crystal size (mm)0.54 × 0.44 × 0.37
Data collection
DiffractometerBruker APEXII CCD
diffractometer
Absorption correction
No. of measured, independent and
observed [I > 2σ(I)] reflections
23612, 5658, 2131
Rint0.090
(sin θ/λ)max1)0.667
Refinement
R[F2 > 2σ(F2)], wR(F2), S 0.044, 0.102, 0.79
No. of reflections5658
No. of parameters602
No. of restraints1
H-atom treatmentH atoms treated by a mixture of independent and constrained refinement
Δρmax, Δρmin (e Å3)0.18, 0.17

Computer programs: APEX2 (Bruker, 2007), SAINT (Bruker, 2007), SHELXS97 (Sheldrick, 2008), SHELXL97 (Sheldrick, 2008), ORTEP-3 for Windows (Farrugia, 1997), WinGX (Farrugia, 1999) and PLATON (Spek, 2009).

Hydrogen-bond geometry (Å, º) top
D—H···AD—HH···AD···AD—H···A
N1E—H1E···O3Di0.861.782.636 (4)171
N1F—H1F···O4Ci0.861.762.613 (4)173
O4A—H1O···O4Dii0.901.672.549 (5)164
O4B—H2O···O3Ciii0.901.652.536 (5)165
C4E—H4E···O1Biv0.932.583.398 (7)147
C7E—H7K···O4Dv0.962.573.475 (6)156
C7E—H7L···O1Biv0.962.553.455 (9)158
Symmetry codes: (i) x1/2, y+1, z; (ii) x1/2, y+1, z+1; (iii) x+1/2, y, z+1/2; (iv) x+1/2, y+1, z1; (v) x, y+1, z.
 

Footnotes

Additional correspondence author, e-mail: atrabbasi@yahoo.com.

Acknowledgements

The authors are grateful to the Higher Education Commission of Pakistan for providing financial support.

References

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