
Acta Cryst. (2010). E66, o667 [ doi:10.1107/S1600536810005362 ]
In the crystal of the title compound, C8H8NO4+·NO3-·2H2O, the 5-ammonioisophthalic acid cations, the nitrate anions and the water molecules are linked by N-H
O, O-H
O and C-H
O hydrogen bonds into a three-dimensional network. The structure is further stabilized by aromatic
-
stacking interactions, with centroid-centroid separations of 3.827 (2) Å.
5-Aminoisophthalic acid (1.81 g, 10 mmol) was dissolved in water (5 ml), ethanol (20 ml) and nitric acid (0.57 g, 10 mmol) and the solution was filtered. After slowly evaporating over a period of 3 d, colourless prismatic crystals of the title compound suitable for X-ray diffraction analysis were isolated.
All the H atoms were calculated geometrically and were allowed to ride on their parent atomsd, with C—H = 0.93–0.97 Å, N—H = 0.89 Å, and with Uiso(H) = 1.2Ueq(C) and 1.5Ueq(N).
Data collection: CrystalClear (Rigaku 2005); cell refinement: 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: PRPKAPPA (Ferguson, 1999).
| C8H8NO4+·NO3−·2H2O | F(000) = 584 |
| Mr = 280.20 | Dx = 1.547 Mg m−3 |
| Monoclinic, P21/c | Mo Kα radiation, λ = 0.71073 Å |
| Hall symbol: -P 2ybc | Cell parameters from 1753 reflections |
| a = 8.3436 (17) Å | θ = 3.1–27.5° |
| b = 8.6234 (17) Å | µ = 0.14 mm−1 |
| c = 16.862 (3) Å | T = 293 K |
| β = 97.31 (3)° | Prism, colourless |
| V = 1203.4 (4) Å3 | 0.35 × 0.25 × 0.10 mm |
| Z = 4 |
| Rigaku SCXmini diffractometer | 2753 independent reflections |
| Radiation source: fine-focus sealed tube | 1905 reflections with I > 2σ(I) |
| graphite | Rint = 0.055 |
| Detector resolution: 13.6612 pixels mm-1 | θmax = 27.5°, θmin = 3.2° |
| CCD profile fitting scans | h = −10→10 |
| Absorption correction: multi-scan (CrystalClear; Rigaku, 2005) | k = −11→11 |
| Tmin = 0.960, Tmax = 0.986 | l = −21→21 |
| 12169 measured reflections |
| Refinement on F2 | Secondary atom site location: difference Fourier map |
| Least-squares matrix: full | Hydrogen site location: inferred from neighbouring sites |
| R[F2 > 2σ(F2)] = 0.054 | w = 1/[σ2(Fo2) + (0.0423P)2 + 0.7735P] where P = (Fo2 + 2Fc2)/3 |
| wR(F2) = 0.129 | (Δ/σ)max < 0.001 |
| S = 1.07 | Δρmax = 0.28 e Å−3 |
| 2753 reflections | Δρmin = −0.24 e Å−3 |
| 190 parameters | Extinction correction: SHELXL97 (Sheldrick, 2008) |
| 0 restraints | Extinction coefficient: 0.0014 (1) |
| Primary atom site location: structure-invariant direct methods |
| C8H8NO4+·NO3−·2H2O | V = 1203.4 (4) Å3 |
| Mr = 280.20 | Z = 4 |
| Monoclinic, P21/c | Mo Kα radiation |
| a = 8.3436 (17) Å | µ = 0.14 mm−1 |
| b = 8.6234 (17) Å | T = 293 K |
| c = 16.862 (3) Å | 0.35 × 0.25 × 0.10 mm |
| β = 97.31 (3)° |
| Rigaku SCXmini diffractometer | 2753 independent reflections |
| Absorption correction: multi-scan (CrystalClear; Rigaku, 2005) | 1905 reflections with I > 2σ(I) |
| Tmin = 0.960, Tmax = 0.986 | Rint = 0.055 |
| 12169 measured reflections | θmax = 27.5° |
| R[F2 > 2σ(F2)] = 0.054 | ? |
| wR(F2) = 0.129 | Δρmax = 0.28 e Å−3 |
| S = 1.07 | Δρmin = −0.24 e Å−3 |
| 2753 reflections | Absolute structure: ? |
| 190 parameters | Flack parameter: ? |
| 0 restraints | Rogers parameter: ? |
Geometry. All esds (except the esd in the dihedral angle between two l.s. planes) are estimated using the full covariance matrix. The cell esds are taken into account individually in the estimation of esds in distances, angles and torsion angles; correlations between esds in cell parameters are only used when they are defined by crystal symmetry. An approximate (isotropic) treatment of cell esds is used for estimating esds 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 | ||
| O4 | 0.4952 (2) | 0.14675 (19) | 0.42859 (10) | 0.0442 (5) | |
| H4 | 0.5275 | 0.0603 | 0.4432 | 0.066* | |
| N1 | 0.3108 (2) | 0.6452 (2) | 0.29415 (11) | 0.0328 (5) | |
| H1A | 0.3651 | 0.5813 | 0.2658 | 0.049* | |
| H1B | 0.3632 | 0.7350 | 0.3010 | 0.049* | |
| H1C | 0.2126 | 0.6614 | 0.2682 | 0.049* | |
| C2 | 0.3575 (3) | 0.4279 (2) | 0.38793 (13) | 0.0280 (5) | |
| H2 | 0.4070 | 0.3744 | 0.3498 | 0.034* | |
| O1 | 0.1136 (3) | 0.6025 (2) | 0.62566 (11) | 0.0545 (6) | |
| H1 | 0.0669 | 0.6559 | 0.6558 | 0.082* | |
| O3 | 0.3885 (3) | 0.1368 (2) | 0.54276 (11) | 0.0513 (5) | |
| C4 | 0.2667 (3) | 0.4405 (2) | 0.51780 (13) | 0.0296 (5) | |
| H4A | 0.2556 | 0.3946 | 0.5667 | 0.036* | |
| C1 | 0.2969 (3) | 0.5756 (2) | 0.37216 (13) | 0.0264 (5) | |
| C5 | 0.2069 (3) | 0.5891 (3) | 0.50071 (14) | 0.0299 (5) | |
| C6 | 0.2225 (3) | 0.6570 (2) | 0.42699 (13) | 0.0300 (5) | |
| H6 | 0.1830 | 0.7563 | 0.4152 | 0.036* | |
| O2 | 0.0772 (3) | 0.8101 (2) | 0.54705 (12) | 0.0605 (6) | |
| C3 | 0.3432 (3) | 0.3610 (2) | 0.46132 (13) | 0.0275 (5) | |
| C7 | 0.1260 (3) | 0.6799 (3) | 0.55994 (14) | 0.0356 (6) | |
| O5 | 0.2218 (2) | −0.0029 (2) | 0.30373 (12) | 0.0461 (5) | |
| O6 | 0.4607 (2) | −0.06093 (19) | 0.27628 (11) | 0.0441 (5) | |
| O7 | 0.3495 (2) | 0.15470 (19) | 0.23390 (12) | 0.0460 (5) | |
| N2 | 0.3433 (2) | 0.0312 (2) | 0.27105 (12) | 0.0333 (5) | |
| C8 | 0.4106 (3) | 0.2034 (3) | 0.47971 (13) | 0.0304 (5) | |
| O9 | 0.9920 (2) | 0.7569 (2) | 0.73715 (12) | 0.0422 (5) | |
| O8 | 0.8512 (3) | 0.5594 (3) | 0.84014 (16) | 0.0667 (7) | |
| H9A | 0.916 (5) | 0.828 (5) | 0.729 (2) | 0.091 (13)* | |
| H8A | 0.904 (4) | 0.500 (5) | 0.885 (2) | 0.089 (13)* | |
| H8B | 0.781 (6) | 0.612 (5) | 0.861 (3) | 0.111 (16)* | |
| H9B | 0.949 (6) | 0.706 (6) | 0.771 (3) | 0.14 (2)* |
| U11 | U22 | U33 | U12 | U13 | U23 | |
| O4 | 0.0653 (12) | 0.0295 (9) | 0.0394 (10) | 0.0196 (9) | 0.0133 (9) | 0.0042 (7) |
| N1 | 0.0348 (11) | 0.0289 (10) | 0.0359 (11) | 0.0043 (8) | 0.0092 (9) | 0.0069 (8) |
| C2 | 0.0321 (12) | 0.0225 (11) | 0.0299 (12) | 0.0021 (9) | 0.0057 (10) | −0.0010 (9) |
| O1 | 0.0824 (15) | 0.0496 (11) | 0.0354 (10) | 0.0243 (10) | 0.0225 (10) | 0.0014 (9) |
| O3 | 0.0760 (14) | 0.0357 (10) | 0.0470 (11) | 0.0214 (10) | 0.0261 (10) | 0.0177 (8) |
| C4 | 0.0365 (13) | 0.0251 (11) | 0.0269 (12) | 0.0028 (9) | 0.0025 (10) | 0.0010 (9) |
| C1 | 0.0283 (11) | 0.0236 (11) | 0.0275 (11) | −0.0002 (9) | 0.0038 (9) | 0.0026 (9) |
| C5 | 0.0323 (12) | 0.0258 (11) | 0.0313 (12) | 0.0017 (9) | 0.0029 (10) | −0.0025 (9) |
| C6 | 0.0345 (12) | 0.0204 (10) | 0.0348 (12) | 0.0054 (9) | 0.0027 (10) | 0.0003 (9) |
| O2 | 0.0920 (16) | 0.0371 (11) | 0.0573 (13) | 0.0270 (11) | 0.0282 (12) | 0.0011 (9) |
| C3 | 0.0317 (12) | 0.0209 (10) | 0.0293 (12) | 0.0016 (9) | 0.0021 (9) | 0.0008 (9) |
| C7 | 0.0421 (14) | 0.0308 (13) | 0.0343 (13) | 0.0059 (11) | 0.0063 (11) | −0.0055 (10) |
| O5 | 0.0385 (10) | 0.0427 (10) | 0.0604 (12) | −0.0026 (8) | 0.0199 (9) | 0.0066 (9) |
| O6 | 0.0436 (10) | 0.0346 (9) | 0.0562 (12) | 0.0130 (8) | 0.0149 (9) | 0.0030 (8) |
| O7 | 0.0483 (11) | 0.0269 (9) | 0.0643 (12) | −0.0019 (8) | 0.0128 (9) | 0.0126 (8) |
| N2 | 0.0363 (11) | 0.0263 (10) | 0.0377 (11) | −0.0009 (9) | 0.0063 (9) | −0.0016 (8) |
| C8 | 0.0379 (13) | 0.0246 (11) | 0.0290 (12) | 0.0042 (10) | 0.0049 (10) | −0.0001 (9) |
| O9 | 0.0356 (10) | 0.0465 (11) | 0.0460 (11) | 0.0073 (9) | 0.0106 (9) | −0.0011 (9) |
| O8 | 0.0748 (16) | 0.0582 (14) | 0.0742 (17) | 0.0179 (12) | 0.0371 (14) | 0.0138 (12) |
| O4—C8 | 1.279 (3) | C4—H4A | 0.9300 |
| O4—H4 | 0.8200 | C1—C6 | 1.371 (3) |
| N1—C1 | 1.464 (3) | C5—C6 | 1.395 (3) |
| N1—H1A | 0.8900 | C5—C7 | 1.496 (3) |
| N1—H1B | 0.8900 | C6—H6 | 0.9300 |
| N1—H1C | 0.8900 | O2—C7 | 1.205 (3) |
| C2—C1 | 1.383 (3) | C3—C8 | 1.488 (3) |
| C2—C3 | 1.384 (3) | O5—N2 | 1.249 (2) |
| C2—H2 | 0.9300 | O6—N2 | 1.256 (2) |
| O1—C7 | 1.309 (3) | O7—N2 | 1.240 (2) |
| O1—H1 | 0.8200 | O9—H9A | 0.88 (4) |
| O3—C8 | 1.243 (3) | O9—H9B | 0.84 (5) |
| C4—C5 | 1.392 (3) | O8—H8A | 0.97 (4) |
| C4—C3 | 1.393 (3) | O8—H8B | 0.85 (5) |
| C8—O4—H4 | 109.5 | C6—C5—C7 | 118.5 (2) |
| C1—N1—H1A | 109.5 | C1—C6—C5 | 119.2 (2) |
| C1—N1—H1B | 109.5 | C1—C6—H6 | 120.4 |
| H1A—N1—H1B | 109.5 | C5—C6—H6 | 120.4 |
| C1—N1—H1C | 109.5 | C2—C3—C4 | 120.3 (2) |
| H1A—N1—H1C | 109.5 | C2—C3—C8 | 119.59 (19) |
| H1B—N1—H1C | 109.5 | C4—C3—C8 | 120.1 (2) |
| C1—C2—C3 | 119.0 (2) | O2—C7—O1 | 124.5 (2) |
| C1—C2—H2 | 120.5 | O2—C7—C5 | 122.6 (2) |
| C3—C2—H2 | 120.5 | O1—C7—C5 | 112.9 (2) |
| C7—O1—H1 | 109.5 | O7—N2—O5 | 120.9 (2) |
| C5—C4—C3 | 119.7 (2) | O7—N2—O6 | 119.8 (2) |
| C5—C4—H4A | 120.2 | O5—N2—O6 | 119.32 (19) |
| C3—C4—H4A | 120.2 | O3—C8—O4 | 123.7 (2) |
| C6—C1—C2 | 121.8 (2) | O3—C8—C3 | 120.5 (2) |
| C6—C1—N1 | 119.39 (19) | O4—C8—C3 | 115.8 (2) |
| C2—C1—N1 | 118.78 (19) | H9A—O9—H9B | 96 (4) |
| C4—C5—C6 | 119.9 (2) | H8A—O8—H8B | 103 (4) |
| C4—C5—C7 | 121.6 (2) |
| D—H···A | D—H | H···A | D···A | D—H···A |
| C2—H2···O6i | 0.93 | 2.58 | 3.324 (3) | 138 |
| O9—H9A···O7ii | 0.88 (4) | 2.39 (4) | 3.048 (3) | 133 (3) |
| O9—H9A···O5ii | 0.88 (4) | 1.94 (4) | 2.801 (3) | 168 (4) |
| O8—H8B···O3iii | 0.85 (5) | 2.29 (5) | 3.057 (3) | 149 (4) |
| O8—H8A···O2iv | 0.97 (4) | 2.00 (4) | 2.882 (3) | 151 (3) |
| O4—H4···O3v | 0.82 | 1.84 | 2.652 (2) | 169 |
| N1—H1C···O9vi | 0.89 | 1.98 | 2.839 (3) | 163 |
| N1—H1B···O6vii | 0.89 | 2.00 | 2.859 (3) | 161 |
| N1—H1B···O5vii | 0.89 | 2.55 | 3.134 (3) | 124 |
| O9—H9B···O8 | 0.84 (5) | 1.96 (5) | 2.796 (3) | 171 (5) |
| N1—H1A···O7i | 0.89 | 2.46 | 2.933 (3) | 114 |
| N1—H1A···O6i | 0.89 | 2.09 | 2.963 (3) | 165 |
| O1—H1···O9viii | 0.82 | 1.80 | 2.611 (3) | 169 |
| Symmetry codes: (i) −x+1, y+1/2, −z+1/2; (ii) −x+1, −y+1, −z+1; (iii) −x+1, y+1/2, −z+3/2; (iv) −x+1, y−1/2, −z+3/2; (v) −x+1, −y, −z+1; (vi) x−1, −y+3/2, z−1/2; (vii) x, y+1, z; (viii) x−1, y, z. |
| D—H···A | D—H | H···A | D···A | D—H···A |
| C2—H2···O6i | 0.93 | 2.58 | 3.324 (3) | 138 |
| O9—H9A···O7ii | 0.88 (4) | 2.39 (4) | 3.048 (3) | 133 (3) |
| O9—H9A···O5ii | 0.88 (4) | 1.94 (4) | 2.801 (3) | 168 (4) |
| O8—H8B···O3iii | 0.85 (5) | 2.29 (5) | 3.057 (3) | 149 (4) |
| O8—H8A···O2iv | 0.97 (4) | 2.00 (4) | 2.882 (3) | 151 (3) |
| O4—H4···O3v | 0.82 | 1.84 | 2.652 (2) | 169 |
| N1—H1C···O9vi | 0.89 | 1.98 | 2.839 (3) | 163 |
| N1—H1B···O6vii | 0.89 | 2.00 | 2.859 (3) | 161 |
| N1—H1B···O5vii | 0.89 | 2.55 | 3.134 (3) | 124 |
| O9—H9B···O8 | 0.84 (5) | 1.96 (5) | 2.796 (3) | 171 (5) |
| N1—H1A···O7i | 0.89 | 2.46 | 2.933 (3) | 114 |
| N1—H1A···O6i | 0.89 | 2.09 | 2.963 (3) | 165 |
| O1—H1···O9viii | 0.82 | 1.80 | 2.611 (3) | 169 |
| Symmetry codes: (i) −x+1, y+1/2, −z+1/2; (ii) −x+1, −y+1, −z+1; (iii) −x+1, y+1/2, −z+3/2; (iv) −x+1, y−1/2, −z+3/2; (v) −x+1, −y, −z+1; (vi) x−1, −y+3/2, z−1/2; (vii) x, y+1, z; (viii) x−1, y, z. |
This work was supported by the Technical Fund Financing Projects (grant Nos. 9207042464 and 9207041482) from Southeast University to ZRQ [who is this? give name in full].
Dobson, A. J. & Gerkin, R. E. (1998). Acta Cryst. C54, 1503–1505.
Ferguson, G. (1999). PRPKAPPA. University of Guelph, Canada.
Liao, Q.-X., Li, Z.-J., Zhang, J., Kang, Y., Dai, Y.-M. & Yao, Y.-G. (2004). Acta Cryst. C60, m509–m511.
Rigaku (2005). CrystalClear. Rigaku Corporation, Tokyo, Japan.
Sheldrick, G. M. (2008). Acta Cryst. A64, 112–122.
5-Aminobenzene-1,3-dioic acid (5-aminoisophthalic acid) is an important molecule due to its amphoteric property. The report on 5-aminobenzene-1,3-dioic acid hemihydrate (Dobson et al. 1998) is one of a series on hydrogen bonding in aminosubstituted carboxylic acids, and follows reports on a novel tetragonal phase of aminobutyric acid, on 8-aminocaprylic acid and on 3-aminoisobutyric acid monohydrate. In addition, 5-aminobenzene-1,3-dioic acid is an attractive ligand for use in the generation of polar coordination polymers (Liao et al., 2004).
The asymmetric unit of the title compound comprises two water molecules, a 5-ammonioisophthalic acid cation and one nitrate anion (Fig. 1). The crystal packing is stabilized by hydrogen bonds of N—H···O, O—H···O, C—H···O (Table 1) connecting neighbouring water molecules, cations and anions into a three-dimensional network (Fig. 2). The structure is further stabiized by aromatic π···π stacking interactions, with centroid-to-centroid separations of 3.827 (2) Å.