organic compounds
Dimethylammonium 4-nitrophenolate–4-nitrophenol (1/1)
aOrdered Matter Science Research Center, College of Chemistry and Chemical Engineering, Southeast University, Nanjing 211189, People's Republic of China
*Correspondence e-mail: xjm_cool@163.com
The title compound, C2H8N+·C6H4NO3−·C6H5NO3, was synthesized from dimethylamine and 4-nitrophenol in an overall yield of 85%. The dihdral angles between the nphenyl rings and their attached nitro groups are 5.7 (6) and 2.5 (7)°. In the crystal, there are strong hydrogen bonds between the ammonium group and the nitrophenol and nitrophenolate O atoms, and between the nitrophenol and nitrophenolate O atoms, forming a chain along the b-axis direction.
Related literature
For background to dialectric behaviour, see: Horiuchi et al. (2007); Kumai et al. (2006).
Experimental
Crystal data
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Refinement
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Data collection: CrystalClear (Rigaku, 2005); cell CrystalClear; data reduction: CrystalClear; 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: SHELXL97.
Supporting information
10.1107/S1600536810008317/ez2184sup1.cif
contains datablocks I, global. DOI:Structure factors: contains datablock I. DOI: 10.1107/S1600536810008317/ez2184Isup2.hkl
The title complex was obtained by mixing dimethylamine water solution (33%, 0.68 g) and 4-nitrophenol (5 mmol, 0.695 g) in 15 ml ethanol, in the stoichiometric ratio 1:1. After a few weeks, yellow crystals were obtained by slow evaporation.
All H-atoms were located from difference maps and those on N and C were positioned geometrically and refined using a riding model with (N—H = 0.90, C—H = 0.93 and 0.96 Å for aromatic, methyl H respectively) and constrained to ride on their parent atoms with Uiso(H) = xUeq(C), where x = 1.5 for methyl H and x = 1.2 for all other H atoms. Atom H1 on atom O2 was refined isotropically.
Data collection: CrystalClear (Rigaku, 2005); cell
CrystalClear (Rigaku, 2005); data reduction: CrystalClear (Rigaku, 2005); 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: SHELXL97 (Sheldrick, 2008).C2H8N+·C6H4NO3−·C6H5NO3 | F(000) = 680 |
Mr = 323.31 | Dx = 1.362 Mg m−3 |
Monoclinic, P21/n | Mo Kα radiation, λ = 0.71073 Å |
Hall symbol: -P 2yn | Cell parameters from 0 reflections |
a = 6.3185 (10) Å | θ = 2.7–27.3° |
b = 16.8867 (10) Å | µ = 0.11 mm−1 |
c = 15.1015 (14) Å | T = 293 K |
β = 101.928 (10)° | Prism, yellow |
V = 1576.5 (3) Å3 | 0.40 × 0.30 × 0.20 mm |
Z = 4 |
Rigaku Mercury2 diffractometer | 3617 independent reflections |
Radiation source: fine-focus sealed tube | 1474 reflections with I > 2σ(I) |
Graphite monochromator | Rint = 0.134 |
Detector resolution: 13.6612 pixels mm-1 | θmax = 27.5°, θmin = 3.0° |
CCD_Profile_fitting scans | h = −8→8 |
Absorption correction: multi-scan (CrystalClear; Rigaku, 2005) | k = −21→21 |
Tmin = 0.960, Tmax = 0.977 | l = −19→19 |
15857 measured reflections |
Refinement on F2 | Primary atom site location: structure-invariant direct methods |
Least-squares matrix: full | Secondary atom site location: difference Fourier map |
R[F2 > 2σ(F2)] = 0.076 | Hydrogen site location: inferred from neighbouring sites |
wR(F2) = 0.212 | H atoms treated by a mixture of independent and constrained refinement |
S = 1.00 | w = 1/[σ2(Fo2) + (0.0781P)2] where P = (Fo2 + 2Fc2)/3 |
3617 reflections | (Δ/σ)max < 0.001 |
214 parameters | Δρmax = 0.19 e Å−3 |
0 restraints | Δρmin = −0.19 e Å−3 |
C2H8N+·C6H4NO3−·C6H5NO3 | V = 1576.5 (3) Å3 |
Mr = 323.31 | Z = 4 |
Monoclinic, P21/n | Mo Kα radiation |
a = 6.3185 (10) Å | µ = 0.11 mm−1 |
b = 16.8867 (10) Å | T = 293 K |
c = 15.1015 (14) Å | 0.40 × 0.30 × 0.20 mm |
β = 101.928 (10)° |
Rigaku Mercury2 diffractometer | 3617 independent reflections |
Absorption correction: multi-scan (CrystalClear; Rigaku, 2005) | 1474 reflections with I > 2σ(I) |
Tmin = 0.960, Tmax = 0.977 | Rint = 0.134 |
15857 measured reflections |
R[F2 > 2σ(F2)] = 0.076 | 0 restraints |
wR(F2) = 0.212 | H atoms treated by a mixture of independent and constrained refinement |
S = 1.00 | Δρmax = 0.19 e Å−3 |
3617 reflections | Δρmin = −0.19 e Å−3 |
214 parameters |
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. |
x | y | z | Uiso*/Ueq | ||
C1 | 0.1166 (5) | 0.16858 (18) | 0.2568 (2) | 0.0476 (8) | |
C2 | −0.0163 (5) | 0.13397 (19) | 0.3106 (2) | 0.0551 (9) | |
H2 | −0.1503 | 0.1564 | 0.3115 | 0.066* | |
C3 | 0.0485 (6) | 0.0682 (2) | 0.3612 (2) | 0.0622 (10) | |
H3A | −0.0433 | 0.0451 | 0.3946 | 0.075* | |
C4 | 0.2496 (6) | 0.03589 (19) | 0.3631 (2) | 0.0541 (9) | |
C5 | 0.3856 (6) | 0.06954 (19) | 0.3122 (2) | 0.0566 (9) | |
H5 | 0.5208 | 0.0474 | 0.3131 | 0.068* | |
C6 | 0.3216 (5) | 0.13475 (19) | 0.2612 (2) | 0.0530 (9) | |
H6 | 0.4154 | 0.1575 | 0.2284 | 0.064* | |
C7 | 0.1727 (5) | 0.15350 (19) | 0.7572 (2) | 0.0492 (9) | |
C8 | −0.0224 (5) | 0.1312 (2) | 0.7775 (2) | 0.0563 (9) | |
H8 | −0.1464 | 0.1606 | 0.7553 | 0.068* | |
C9 | −0.0337 (6) | 0.0659 (2) | 0.8302 (2) | 0.0575 (9) | |
H9 | −0.1655 | 0.0506 | 0.8431 | 0.069* | |
C10 | 0.1485 (6) | 0.02359 (19) | 0.8637 (2) | 0.0499 (9) | |
C11 | 0.3448 (6) | 0.0449 (2) | 0.8463 (3) | 0.0668 (11) | |
H11 | 0.4683 | 0.0156 | 0.8696 | 0.080* | |
C12 | 0.3560 (6) | 0.1109 (2) | 0.7933 (3) | 0.0642 (11) | |
H12 | 0.4888 | 0.1267 | 0.7819 | 0.077* | |
C13 | −0.0771 (7) | 0.2605 (2) | −0.0167 (3) | 0.0913 (14) | |
H13A | −0.0713 | 0.2802 | −0.0758 | 0.137* | |
H13B | −0.1768 | 0.2918 | 0.0085 | 0.137* | |
H13C | −0.1244 | 0.2064 | −0.0214 | 0.137* | |
C14 | 0.3086 (7) | 0.2208 (2) | 0.0111 (3) | 0.0861 (13) | |
H14A | 0.2750 | 0.1653 | 0.0100 | 0.129* | |
H14B | 0.4451 | 0.2299 | 0.0514 | 0.129* | |
H14C | 0.3168 | 0.2379 | −0.0488 | 0.129* | |
N1 | 0.3125 (7) | −0.03649 (18) | 0.4114 (2) | 0.0694 (9) | |
N2 | 0.1366 (7) | −0.04734 (19) | 0.9189 (2) | 0.0692 (9) | |
N3 | 0.1396 (5) | 0.26538 (15) | 0.0422 (2) | 0.0671 (9) | |
H3B | 0.1793 | 0.3166 | 0.0478 | 0.081* | |
H3C | 0.1310 | 0.2477 | 0.0976 | 0.081* | |
O1 | 0.0540 (4) | 0.23037 (12) | 0.20599 (14) | 0.0553 (7) | |
O2 | 0.1749 (4) | 0.21762 (15) | 0.70479 (17) | 0.0650 (8) | |
O3 | 0.4907 (5) | −0.06544 (16) | 0.4107 (2) | 0.0896 (10) | |
O4 | 0.1846 (5) | −0.06924 (15) | 0.45180 (19) | 0.0896 (10) | |
O5 | 0.3015 (6) | −0.08400 (18) | 0.9483 (2) | 0.1126 (12) | |
O6 | −0.0419 (5) | −0.06671 (15) | 0.93146 (17) | 0.0791 (9) | |
H1 | 0.313 (7) | 0.233 (2) | 0.704 (3) | 0.104 (16)* |
U11 | U22 | U33 | U12 | U13 | U23 | |
C1 | 0.057 (2) | 0.0400 (19) | 0.045 (2) | −0.0029 (17) | 0.0077 (17) | −0.0043 (16) |
C2 | 0.061 (2) | 0.048 (2) | 0.060 (2) | 0.0018 (18) | 0.0225 (19) | −0.0010 (18) |
C3 | 0.074 (3) | 0.051 (2) | 0.067 (3) | −0.007 (2) | 0.028 (2) | 0.0028 (19) |
C4 | 0.069 (2) | 0.0402 (19) | 0.053 (2) | 0.0022 (18) | 0.011 (2) | 0.0003 (17) |
C5 | 0.060 (2) | 0.046 (2) | 0.064 (2) | 0.0070 (18) | 0.012 (2) | −0.0058 (19) |
C6 | 0.053 (2) | 0.045 (2) | 0.063 (2) | −0.0023 (17) | 0.0166 (19) | 0.0012 (18) |
C7 | 0.052 (2) | 0.0426 (19) | 0.055 (2) | −0.0042 (17) | 0.0154 (18) | −0.0032 (17) |
C8 | 0.046 (2) | 0.053 (2) | 0.067 (2) | 0.0017 (17) | 0.0077 (19) | 0.0025 (19) |
C9 | 0.051 (2) | 0.058 (2) | 0.065 (2) | −0.0081 (19) | 0.014 (2) | −0.002 (2) |
C10 | 0.057 (2) | 0.046 (2) | 0.048 (2) | −0.0057 (18) | 0.0156 (18) | 0.0008 (16) |
C11 | 0.055 (2) | 0.061 (2) | 0.087 (3) | 0.0125 (19) | 0.020 (2) | 0.011 (2) |
C12 | 0.054 (2) | 0.057 (2) | 0.086 (3) | 0.0044 (19) | 0.024 (2) | 0.014 (2) |
C13 | 0.099 (4) | 0.077 (3) | 0.088 (3) | −0.004 (2) | −0.004 (3) | 0.014 (2) |
C14 | 0.098 (3) | 0.087 (3) | 0.083 (3) | −0.012 (3) | 0.041 (3) | −0.013 (2) |
N1 | 0.102 (3) | 0.046 (2) | 0.059 (2) | 0.003 (2) | 0.013 (2) | 0.0026 (16) |
N2 | 0.089 (3) | 0.055 (2) | 0.065 (2) | −0.014 (2) | 0.018 (2) | −0.0048 (17) |
N3 | 0.102 (3) | 0.0431 (17) | 0.0586 (19) | −0.0083 (17) | 0.022 (2) | 0.0005 (15) |
O1 | 0.0664 (16) | 0.0450 (13) | 0.0580 (15) | 0.0080 (12) | 0.0205 (12) | 0.0035 (12) |
O2 | 0.0596 (18) | 0.0565 (16) | 0.0798 (18) | −0.0041 (13) | 0.0167 (15) | 0.0149 (13) |
O3 | 0.095 (2) | 0.0640 (18) | 0.110 (2) | 0.0230 (17) | 0.022 (2) | 0.0174 (16) |
O4 | 0.132 (3) | 0.0583 (17) | 0.087 (2) | 0.0032 (17) | 0.044 (2) | 0.0174 (15) |
O5 | 0.102 (3) | 0.084 (2) | 0.148 (3) | 0.0146 (19) | 0.018 (2) | 0.054 (2) |
O6 | 0.098 (2) | 0.0679 (18) | 0.078 (2) | −0.0276 (16) | 0.0314 (17) | 0.0043 (14) |
C1—O1 | 1.307 (3) | C10—N2 | 1.471 (4) |
C1—C6 | 1.405 (4) | C11—C12 | 1.382 (4) |
C1—C2 | 1.410 (4) | C11—H11 | 0.9300 |
C2—C3 | 1.362 (4) | C12—H12 | 0.9300 |
C2—H2 | 0.9300 | C13—N3 | 1.473 (5) |
C3—C4 | 1.378 (5) | C13—H13A | 0.9600 |
C3—H3A | 0.9300 | C13—H13B | 0.9600 |
C4—C5 | 1.387 (4) | C13—H13C | 0.9600 |
C4—N1 | 1.436 (4) | C14—N3 | 1.462 (4) |
C5—C6 | 1.357 (4) | C14—H14A | 0.9600 |
C5—H5 | 0.9300 | C14—H14B | 0.9600 |
C6—H6 | 0.9300 | C14—H14C | 0.9600 |
C7—O2 | 1.343 (4) | N1—O3 | 1.229 (4) |
C7—C12 | 1.376 (4) | N1—O4 | 1.239 (4) |
C7—C8 | 1.382 (4) | N2—O5 | 1.214 (4) |
C8—C9 | 1.371 (4) | N2—O6 | 1.226 (4) |
C8—H8 | 0.9300 | N3—H3B | 0.9000 |
C9—C10 | 1.360 (4) | N3—H3C | 0.9000 |
C9—H9 | 0.9300 | O2—H1 | 0.91 (4) |
C10—C11 | 1.368 (4) | ||
O1—C1—C6 | 121.1 (3) | C10—C11—H11 | 120.6 |
O1—C1—C2 | 121.7 (3) | C12—C11—H11 | 120.6 |
C6—C1—C2 | 117.2 (3) | C7—C12—C11 | 120.7 (3) |
C3—C2—C1 | 121.0 (3) | C7—C12—H12 | 119.7 |
C3—C2—H2 | 119.5 | C11—C12—H12 | 119.7 |
C1—C2—H2 | 119.5 | N3—C13—H13A | 109.5 |
C2—C3—C4 | 120.2 (3) | N3—C13—H13B | 109.5 |
C2—C3—H3A | 119.9 | H13A—C13—H13B | 109.5 |
C4—C3—H3A | 119.9 | N3—C13—H13C | 109.5 |
C3—C4—C5 | 120.0 (3) | H13A—C13—H13C | 109.5 |
C3—C4—N1 | 120.3 (3) | H13B—C13—H13C | 109.5 |
C5—C4—N1 | 119.4 (3) | N3—C14—H14A | 109.5 |
C6—C5—C4 | 120.1 (3) | N3—C14—H14B | 109.5 |
C6—C5—H5 | 120.0 | H14A—C14—H14B | 109.5 |
C4—C5—H5 | 120.0 | N3—C14—H14C | 109.5 |
C5—C6—C1 | 121.3 (3) | H14A—C14—H14C | 109.5 |
C5—C6—H6 | 119.3 | H14B—C14—H14C | 109.5 |
C1—C6—H6 | 119.3 | O3—N1—O4 | 121.2 (3) |
O2—C7—C12 | 122.9 (3) | O3—N1—C4 | 119.5 (4) |
O2—C7—C8 | 117.9 (3) | O4—N1—C4 | 119.3 (4) |
C12—C7—C8 | 119.1 (3) | O5—N2—O6 | 123.7 (3) |
C9—C8—C7 | 120.2 (3) | O5—N2—C10 | 118.8 (4) |
C9—C8—H8 | 119.9 | O6—N2—C10 | 117.5 (4) |
C7—C8—H8 | 119.9 | C14—N3—C13 | 115.2 (3) |
C10—C9—C8 | 119.8 (3) | C14—N3—H3B | 108.5 |
C10—C9—H9 | 120.1 | C13—N3—H3B | 108.5 |
C8—C9—H9 | 120.1 | C14—N3—H3C | 108.5 |
C9—C10—C11 | 121.4 (3) | C13—N3—H3C | 108.5 |
C9—C10—N2 | 120.0 (3) | H3B—N3—H3C | 107.5 |
C11—C10—N2 | 118.6 (3) | C7—O2—H1 | 111 (3) |
C10—C11—C12 | 118.7 (3) | ||
O1—C1—C2—C3 | 178.1 (3) | C8—C9—C10—N2 | −178.9 (3) |
C6—C1—C2—C3 | −3.0 (5) | C9—C10—C11—C12 | −0.2 (5) |
C1—C2—C3—C4 | 2.3 (5) | N2—C10—C11—C12 | 179.1 (3) |
C2—C3—C4—C5 | −1.0 (5) | O2—C7—C12—C11 | −179.5 (3) |
C2—C3—C4—N1 | −175.7 (3) | C8—C7—C12—C11 | 2.4 (5) |
C3—C4—C5—C6 | 0.6 (5) | C10—C11—C12—C7 | −1.2 (5) |
N1—C4—C5—C6 | 175.3 (3) | C3—C4—N1—O3 | 178.4 (3) |
C4—C5—C6—C1 | −1.4 (5) | C5—C4—N1—O3 | 3.7 (5) |
O1—C1—C6—C5 | −178.5 (3) | C3—C4—N1—O4 | −0.5 (5) |
C2—C1—C6—C5 | 2.6 (5) | C5—C4—N1—O4 | −175.2 (3) |
O2—C7—C8—C9 | 179.5 (3) | C9—C10—N2—O5 | −179.8 (4) |
C12—C7—C8—C9 | −2.3 (5) | C11—C10—N2—O5 | 1.0 (5) |
C7—C8—C9—C10 | 0.9 (5) | C9—C10—N2—O6 | 1.4 (5) |
C8—C9—C10—C11 | 0.3 (5) | C11—C10—N2—O6 | −177.9 (3) |
D—H···A | D—H | H···A | D···A | D—H···A |
N3—H3B···O4i | 0.90 | 2.11 | 3.000 (4) | 170 |
N3—H3C···O1 | 0.90 | 1.82 | 2.704 (4) | 165 |
O2—H1···O1ii | 0.91 (4) | 1.64 (4) | 2.548 (3) | 175 (4) |
Symmetry codes: (i) −x+1/2, y+1/2, −z+1/2; (ii) x+1/2, −y+1/2, z+1/2. |
Experimental details
Crystal data | |
Chemical formula | C2H8N+·C6H4NO3−·C6H5NO3 |
Mr | 323.31 |
Crystal system, space group | Monoclinic, P21/n |
Temperature (K) | 293 |
a, b, c (Å) | 6.3185 (10), 16.8867 (10), 15.1015 (14) |
β (°) | 101.928 (10) |
V (Å3) | 1576.5 (3) |
Z | 4 |
Radiation type | Mo Kα |
µ (mm−1) | 0.11 |
Crystal size (mm) | 0.40 × 0.30 × 0.20 |
Data collection | |
Diffractometer | Rigaku Mercury2 diffractometer |
Absorption correction | Multi-scan (CrystalClear; Rigaku, 2005) |
Tmin, Tmax | 0.960, 0.977 |
No. of measured, independent and observed [I > 2σ(I)] reflections | 15857, 3617, 1474 |
Rint | 0.134 |
(sin θ/λ)max (Å−1) | 0.649 |
Refinement | |
R[F2 > 2σ(F2)], wR(F2), S | 0.076, 0.212, 1.00 |
No. of reflections | 3617 |
No. of parameters | 214 |
H-atom treatment | H atoms treated by a mixture of independent and constrained refinement |
Δρmax, Δρmin (e Å−3) | 0.19, −0.19 |
Computer programs: CrystalClear (Rigaku, 2005), SHELXS97 (Sheldrick, 2008), SHELXL97 (Sheldrick, 2008), SHELXTL (Sheldrick, 2008).
D—H···A | D—H | H···A | D···A | D—H···A |
N3—H3B···O4i | 0.90 | 2.11 | 3.000 (4) | 169.7 |
N3—H3C···O1 | 0.90 | 1.82 | 2.704 (4) | 164.8 |
O2—H1···O1ii | 0.91 (4) | 1.64 (4) | 2.548 (3) | 175 (4) |
Symmetry codes: (i) −x+1/2, y+1/2, −z+1/2; (ii) x+1/2, −y+1/2, z+1/2. |
Acknowledgements
This work was supported by a start-up grant from Southeast University.
References
Horiuchi, S., Kumai, R. & Tokura, Y. (2007). Angew. Chem. Int. Ed. 46, 3497–3501. Web of Science CSD CrossRef CAS Google Scholar
Kumai, R., Horiuchi, S., Okimoto, Y. & Tokura, Y. (2006). J. Chem. Phys. 125, 084715. Web of Science CrossRef PubMed Google Scholar
Rigaku (2005). CrystalClear. Rigaku Corporation, Tokyo, Japan. Google Scholar
Sheldrick, G. M. (2008). Acta Cryst. A64, 112–122. Web of Science CrossRef CAS IUCr Journals Google Scholar
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Studying dielectric behavior is the basic method of characterization for potential ferroelectrics in which there is a dielectric anomaly at the transition temperature (Kumai et al., 2006; Horiuchi et al. 2007). In our case, unfortunately, the title compound has no dielectric disuniformity between 80 K to 350 K (m.p. 381–365 K), however its structure is reported here.
In this report we have established unambiguously the structure of dimethylammonium 4-nitrophenolate-4-nitrophenol (1/1) in the solid state by X-ray diffraction analysis, as shown in Fig. 1. Intermolecular N—H···O, N—H···N and O—H···O hydrogen bonds are found between the dimethylammonium cation and 4-nitrophenolate anion and the 4-nitrophenolate cation and 4-nitrophenol molecule, forming a chain along the b-axis.