organic compounds
2-Carboxy-1-(3-nitrophenyl)ethanaminium perchlorate
aOrdered Matter Science Research Center, College of Chemistry and Chemical Engineering, Southeast University, Nanjing 210096, People's Republic of China
*Correspondence e-mail: lwx927lh@163.com
In the title compound, C9H11N2O4+·ClO4−, the organic cations form centrosymmetric dimers via a pair of O—H⋯O hydrogen bonds between the carboxyl groups. In the crystal, N—H⋯O interactions between the protonated amine group and the perchlorate anions and the nitro group connect the components into a two-dimensional network parallel to (001).
Related literature
For methods of preparation of β-amino acids, see: Cohen et al. (2002); Qu et al. (2004).
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: PRPKAPPA (Ferguson, 1999).
Supporting information
https://doi.org/10.1107/S1600536809052167/gk2243sup1.cif
contains datablocks I, New_Global_Publ_Block. DOI:Structure factors: contains datablock I. DOI: https://doi.org/10.1107/S1600536809052167/gk2243Isup2.hkl
Under nitrogen protection, 3-nitrobenzaldehyde (4.53 g, 30 mmol), malonic acid (5.0 g, 48 mmol) and ammonium acetate (6.0 g, 78 mmol) were added to a flask and refluxed for 12 h yielding a white precipitate. After being cooled to room temperature, the solution was filtered and the 3-amino-3-(3-nitrophenyl)propanoic acid was obtained, it was dissolved in ethanol and perchloric acid. After slowly evaporating over a period of 3 d, colorless prism crystals of the title compound suitable for diffraction studies were isolated.
Positional parameters of all H atoms were calculated geometrically and H atoms were allowed to ride on their parent atoms, with C—H = 0.93 to 0.97 Å, N—H = 0.89 Å, O—H = 0.82 Å, and with Uiso(H) = 1.2 Ueqo(C) or 1.5 Ueq(N,O).
β-Amino acids are important molecules due to their pharmacological properties. Recently, there have been an increased interest in the enantiomeric preparation of β-amino acids as precursors for the synthesis of novel biologically active compounds (Cohen et al., 2002). In addition, β-amino acids are attractive ligands for use in the generation of polar coordination polymers, especially when one considers the ferroelectric compounds (Qu et al., 2004).
The molecular structure of the title compound C9H11N2O4+.ClO4- is shown in Fig. 1. The crystal is stabilized by intermolecucar hydrogen bonds of N—H···O, C—H···O, O—H···O type (Table 1) that connect neighbouring cations and anions, resulting in a two-dimensional network shown in Fig. 2).
For methods of preparation of β-amino acids, see: Cohen et al. (2002); Qu et al. (2004).
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: PRPKAPPA (Ferguson, 1999).Fig. 1. Cation and anion in the title compound with the displacement ellipsoids drawn at the 30% probability level. Intramolecular hydrogen bonds are shown as dashed lines. | |
Fig. 2. Packing diagram of the title compound showing hydrogen bonding interactions. Hydrogen bonds are shown as dashed lines. |
C9H11N2O4+·ClO4− | Z = 2 |
Mr = 310.65 | F(000) = 320 |
Triclinic, P1 | Dx = 1.713 Mg m−3 |
Hall symbol: -P 1 | Mo Kα radiation, λ = 0.71073 Å |
a = 7.4737 (10) Å | Cell parameters from 1721 reflections |
b = 7.7676 (8) Å | θ = 3.1–27.5° |
c = 11.8234 (11) Å | µ = 0.36 mm−1 |
α = 94.973 (5)° | T = 93 K |
β = 99.093 (4)° | Prism, colorless |
γ = 115.574 (9)° | 0.45 × 0.30 × 0.15 mm |
V = 602.04 (12) Å3 |
Rigaku SCXmini diffractometer | 2737 independent reflections |
Radiation source: fine-focus sealed tube | 1732 reflections with I > 2σ(I) |
Graphite monochromator | Rint = 0.049 |
Detector resolution: 13.6612 pixels mm-1 | θmax = 27.5°, θmin = 2.9° |
ω and φ scan | h = −9→9 |
Absorption correction: multi-scan (CrystalClear; Rigaku, 2005) | k = −10→10 |
Tmin = 0.882, Tmax = 0.950 | l = −15→15 |
6395 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)] = 0.030 | H-atom parameters constrained |
wR(F2) = 0.083 | w = 1/[σ2(Fo2) + (0.0372P)2 + 0.395P] where P = (Fo2 + 2Fc2)/3 |
S = 1.08 | (Δ/σ)max = 0.001 |
2737 reflections | Δρmax = 0.41 e Å−3 |
183 parameters | Δρmin = −0.38 e Å−3 |
0 restraints | Extinction correction: SHELXL |
Primary atom site location: structure-invariant direct methods | Extinction coefficient: 0.0014 (2) |
C9H11N2O4+·ClO4− | γ = 115.574 (9)° |
Mr = 310.65 | V = 602.04 (12) Å3 |
Triclinic, P1 | Z = 2 |
a = 7.4737 (10) Å | Mo Kα radiation |
b = 7.7676 (8) Å | µ = 0.36 mm−1 |
c = 11.8234 (11) Å | T = 93 K |
α = 94.973 (5)° | 0.45 × 0.30 × 0.15 mm |
β = 99.093 (4)° |
Rigaku SCXmini diffractometer | 2737 independent reflections |
Absorption correction: multi-scan (CrystalClear; Rigaku, 2005) | 1732 reflections with I > 2σ(I) |
Tmin = 0.882, Tmax = 0.950 | Rint = 0.049 |
6395 measured reflections |
R[F2 > 2σ(F2)] = 0.030 | 0 restraints |
wR(F2) = 0.083 | H-atom parameters constrained |
S = 1.08 | Δρmax = 0.41 e Å−3 |
2737 reflections | Δρmin = −0.38 e Å−3 |
183 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 | ||
O1 | 0.03107 (18) | −0.28766 (17) | 0.32513 (10) | 0.0261 (3) | |
O2 | 0.04653 (17) | −0.16514 (17) | 0.49951 (10) | 0.0222 (2) | |
O3 | 0.98215 (17) | −0.04224 (17) | 0.14192 (9) | 0.0188 (2) | |
H3 | 1.0329 | −0.0530 | 0.0868 | 0.028* | |
O4 | 0.82886 (16) | 0.08503 (15) | 0.02079 (9) | 0.0166 (2) | |
N1 | 0.11075 (18) | −0.15634 (18) | 0.40993 (11) | 0.0163 (3) | |
N2 | 0.74545 (19) | 0.36296 (18) | 0.15908 (10) | 0.0155 (2) | |
H2D | 0.8712 | 0.4242 | 0.2025 | 0.023* | |
H2B | 0.6791 | 0.4320 | 0.1712 | 0.023* | |
H2C | 0.7504 | 0.3487 | 0.0843 | 0.023* | |
C1 | 0.2944 (2) | 0.0167 (2) | 0.40370 (12) | 0.0136 (3) | |
C2 | 0.3868 (2) | 0.1673 (2) | 0.49778 (12) | 0.0142 (3) | |
H2A | 0.3309 | 0.1630 | 0.5630 | 0.017* | |
C3 | 0.5666 (2) | 0.3255 (2) | 0.49154 (12) | 0.0150 (3) | |
H3A | 0.6328 | 0.4284 | 0.5536 | 0.018* | |
C4 | 0.6474 (2) | 0.3303 (2) | 0.39298 (12) | 0.0146 (3) | |
H4 | 0.7681 | 0.4360 | 0.3899 | 0.018* | |
C5 | 0.5485 (2) | 0.1772 (2) | 0.29839 (12) | 0.0137 (3) | |
C6 | 0.3711 (2) | 0.0183 (2) | 0.30398 (12) | 0.0139 (3) | |
H6 | 0.3046 | −0.0853 | 0.2423 | 0.017* | |
C7 | 0.6363 (2) | 0.1664 (2) | 0.19179 (12) | 0.0142 (3) | |
H7 | 0.5242 | 0.0828 | 0.1264 | 0.017* | |
C8 | 0.7776 (2) | 0.0740 (2) | 0.21606 (12) | 0.0146 (3) | |
H8A | 0.8887 | 0.1565 | 0.2808 | 0.018* | |
H8B | 0.7035 | −0.0492 | 0.2399 | 0.018* | |
C9 | 0.8654 (2) | 0.0398 (2) | 0.11572 (12) | 0.0136 (3) | |
Cl1 | 0.33694 (5) | 0.50865 (5) | 0.14980 (3) | 0.01593 (11) | |
O5 | 0.18796 (17) | 0.43639 (18) | 0.21983 (10) | 0.0261 (3) | |
O7 | 0.31799 (18) | 0.35386 (17) | 0.06549 (11) | 0.0270 (3) | |
O8 | 0.3095 (2) | 0.6550 (2) | 0.09212 (10) | 0.0302 (3) | |
O6 | 0.53816 (16) | 0.59598 (16) | 0.22457 (10) | 0.0209 (2) |
U11 | U22 | U33 | U12 | U13 | U23 | |
O1 | 0.0238 (6) | 0.0184 (6) | 0.0237 (6) | −0.0008 (5) | 0.0036 (5) | 0.0009 (5) |
O2 | 0.0208 (5) | 0.0255 (6) | 0.0254 (6) | 0.0112 (5) | 0.0135 (5) | 0.0098 (5) |
O3 | 0.0227 (5) | 0.0280 (6) | 0.0151 (5) | 0.0186 (5) | 0.0074 (4) | 0.0048 (4) |
O4 | 0.0196 (5) | 0.0206 (5) | 0.0144 (5) | 0.0130 (4) | 0.0051 (4) | 0.0031 (4) |
N1 | 0.0138 (6) | 0.0171 (6) | 0.0197 (6) | 0.0082 (5) | 0.0035 (5) | 0.0062 (5) |
N2 | 0.0186 (6) | 0.0164 (6) | 0.0148 (5) | 0.0099 (5) | 0.0060 (5) | 0.0034 (5) |
C1 | 0.0119 (6) | 0.0146 (7) | 0.0169 (6) | 0.0079 (5) | 0.0031 (5) | 0.0049 (5) |
C2 | 0.0155 (6) | 0.0176 (7) | 0.0140 (6) | 0.0105 (6) | 0.0056 (5) | 0.0047 (5) |
C3 | 0.0162 (6) | 0.0136 (7) | 0.0156 (6) | 0.0083 (5) | 0.0016 (5) | −0.0001 (5) |
C4 | 0.0121 (6) | 0.0124 (6) | 0.0193 (7) | 0.0050 (5) | 0.0045 (5) | 0.0032 (5) |
C5 | 0.0153 (6) | 0.0153 (7) | 0.0145 (6) | 0.0098 (5) | 0.0054 (5) | 0.0032 (5) |
C6 | 0.0148 (6) | 0.0140 (6) | 0.0145 (6) | 0.0086 (5) | 0.0017 (5) | 0.0012 (5) |
C7 | 0.0144 (6) | 0.0135 (6) | 0.0146 (6) | 0.0061 (5) | 0.0047 (5) | 0.0007 (5) |
C8 | 0.0167 (6) | 0.0153 (6) | 0.0148 (6) | 0.0084 (5) | 0.0073 (5) | 0.0039 (5) |
C9 | 0.0122 (6) | 0.0119 (6) | 0.0157 (6) | 0.0045 (5) | 0.0041 (5) | 0.0010 (5) |
Cl1 | 0.01637 (17) | 0.01607 (18) | 0.01561 (17) | 0.00828 (13) | 0.00303 (13) | −0.00028 (13) |
O5 | 0.0183 (5) | 0.0306 (6) | 0.0253 (6) | 0.0070 (5) | 0.0087 (5) | −0.0011 (5) |
O7 | 0.0272 (6) | 0.0203 (6) | 0.0294 (6) | 0.0086 (5) | 0.0082 (5) | −0.0080 (5) |
O8 | 0.0498 (8) | 0.0372 (7) | 0.0175 (5) | 0.0332 (6) | 0.0043 (5) | 0.0059 (5) |
O6 | 0.0167 (5) | 0.0202 (5) | 0.0231 (5) | 0.0072 (4) | 0.0013 (4) | 0.0023 (4) |
O1—N1 | 1.2288 (17) | C3—H3A | 0.9300 |
O2—N1 | 1.2255 (17) | C4—C5 | 1.400 (2) |
O3—C9 | 1.3011 (18) | C4—H4 | 0.9300 |
O3—H3 | 0.8200 | C5—C6 | 1.384 (2) |
O4—C9 | 1.2296 (18) | C5—C7 | 1.5217 (18) |
N1—C1 | 1.4670 (18) | C6—H6 | 0.9300 |
N2—C7 | 1.5075 (18) | C7—C8 | 1.519 (2) |
N2—H2D | 0.8900 | C7—H7 | 0.9800 |
N2—H2B | 0.8900 | C8—C9 | 1.5000 (18) |
N2—H2C | 0.8900 | C8—H8A | 0.9700 |
C1—C2 | 1.384 (2) | C8—H8B | 0.9700 |
C1—C6 | 1.3889 (19) | Cl1—O7 | 1.4354 (11) |
C2—C3 | 1.394 (2) | Cl1—O5 | 1.4396 (12) |
C2—H2A | 0.9300 | Cl1—O8 | 1.4455 (12) |
C3—C4 | 1.391 (2) | Cl1—O6 | 1.4486 (11) |
C9—O3—H3 | 109.5 | C5—C6—C1 | 118.60 (13) |
O2—N1—O1 | 123.17 (13) | C5—C6—H6 | 120.7 |
O2—N1—C1 | 118.90 (12) | C1—C6—H6 | 120.7 |
O1—N1—C1 | 117.91 (12) | N2—C7—C8 | 111.06 (11) |
C7—N2—H2D | 109.5 | N2—C7—C5 | 111.99 (11) |
C7—N2—H2B | 109.5 | C8—C7—C5 | 108.58 (11) |
H2D—N2—H2B | 109.5 | N2—C7—H7 | 108.4 |
C7—N2—H2C | 109.5 | C8—C7—H7 | 108.4 |
H2D—N2—H2C | 109.5 | C5—C7—H7 | 108.4 |
H2B—N2—H2C | 109.5 | C9—C8—C7 | 115.16 (12) |
C2—C1—C6 | 123.03 (13) | C9—C8—H8A | 108.5 |
C2—C1—N1 | 119.16 (12) | C7—C8—H8A | 108.5 |
C6—C1—N1 | 117.78 (13) | C9—C8—H8B | 108.5 |
C1—C2—C3 | 117.80 (13) | C7—C8—H8B | 108.5 |
C1—C2—H2A | 121.1 | H8A—C8—H8B | 107.5 |
C3—C2—H2A | 121.1 | O4—C9—O3 | 125.13 (13) |
C4—C3—C2 | 120.38 (13) | O4—C9—C8 | 122.98 (13) |
C4—C3—H3A | 119.8 | O3—C9—C8 | 111.90 (12) |
C2—C3—H3A | 119.8 | O7—Cl1—O5 | 110.51 (7) |
C3—C4—C5 | 120.49 (13) | O7—Cl1—O8 | 110.15 (7) |
C3—C4—H4 | 119.8 | O5—Cl1—O8 | 109.25 (8) |
C5—C4—H4 | 119.8 | O7—Cl1—O6 | 109.10 (7) |
C6—C5—C4 | 119.70 (13) | O5—Cl1—O6 | 109.02 (7) |
C6—C5—C7 | 116.93 (12) | O8—Cl1—O6 | 108.78 (8) |
C4—C5—C7 | 123.14 (12) | ||
O2—N1—C1—C2 | −1.71 (19) | C7—C5—C6—C1 | 175.40 (12) |
O1—N1—C1—C2 | 179.73 (13) | C2—C1—C6—C5 | 0.3 (2) |
O2—N1—C1—C6 | 176.20 (12) | N1—C1—C6—C5 | −177.56 (12) |
O1—N1—C1—C6 | −2.37 (19) | C6—C5—C7—N2 | 148.40 (12) |
C6—C1—C2—C3 | −0.9 (2) | C4—C5—C7—N2 | −37.23 (18) |
N1—C1—C2—C3 | 176.88 (12) | C6—C5—C7—C8 | −88.61 (15) |
C1—C2—C3—C4 | 0.5 (2) | C4—C5—C7—C8 | 85.76 (16) |
C2—C3—C4—C5 | 0.6 (2) | N2—C7—C8—C9 | −60.66 (16) |
C3—C4—C5—C6 | −1.2 (2) | C5—C7—C8—C9 | 175.79 (12) |
C3—C4—C5—C7 | −175.45 (13) | C7—C8—C9—O4 | 0.9 (2) |
C4—C5—C6—C1 | 0.8 (2) | C7—C8—C9—O3 | −179.00 (12) |
D—H···A | D—H | H···A | D···A | D—H···A |
C8—H8B···O6i | 0.97 | 2.46 | 3.3742 (19) | 157 |
C8—H8A···O2ii | 0.97 | 2.56 | 3.3053 (19) | 134 |
C6—H6···O8i | 0.93 | 2.59 | 3.4263 (19) | 151 |
C4—H4···O1iii | 0.93 | 2.48 | 3.3858 (19) | 163 |
O3—H3···O4iv | 0.82 | 1.82 | 2.6381 (14) | 172 |
N2—H2D···O5v | 0.89 | 2.30 | 3.0542 (17) | 142 |
N2—H2D···O1iii | 0.89 | 2.26 | 2.9200 (17) | 130 |
N2—H2C···O8vi | 0.89 | 2.06 | 2.9159 (17) | 162 |
N2—H2C···O4 | 0.89 | 2.45 | 2.9317 (16) | 114 |
N2—H2B···O7 | 0.89 | 2.57 | 3.1795 (18) | 126 |
N2—H2B···O6 | 0.89 | 2.09 | 2.9720 (17) | 172 |
Symmetry codes: (i) x, y−1, z; (ii) −x+1, −y, −z+1; (iii) x+1, y+1, z; (iv) −x+2, −y, −z; (v) x+1, y, z; (vi) −x+1, −y+1, −z. |
Experimental details
Crystal data | |
Chemical formula | C9H11N2O4+·ClO4− |
Mr | 310.65 |
Crystal system, space group | Triclinic, P1 |
Temperature (K) | 93 |
a, b, c (Å) | 7.4737 (10), 7.7676 (8), 11.8234 (11) |
α, β, γ (°) | 94.973 (5), 99.093 (4), 115.574 (9) |
V (Å3) | 602.04 (12) |
Z | 2 |
Radiation type | Mo Kα |
µ (mm−1) | 0.36 |
Crystal size (mm) | 0.45 × 0.30 × 0.15 |
Data collection | |
Diffractometer | Rigaku SCXmini |
Absorption correction | Multi-scan (CrystalClear; Rigaku, 2005) |
Tmin, Tmax | 0.882, 0.950 |
No. of measured, independent and observed [I > 2σ(I)] reflections | 6395, 2737, 1732 |
Rint | 0.049 |
(sin θ/λ)max (Å−1) | 0.650 |
Refinement | |
R[F2 > 2σ(F2)], wR(F2), S | 0.030, 0.083, 1.08 |
No. of reflections | 2737 |
No. of parameters | 183 |
H-atom treatment | H-atom parameters constrained |
Δρmax, Δρmin (e Å−3) | 0.41, −0.38 |
Computer programs: CrystalClear (Rigaku 2005), SHELXS97 (Sheldrick, 2008), SHELXL97 (Sheldrick, 2008), SHELXTL (Sheldrick, 2008), PRPKAPPA (Ferguson, 1999).
D—H···A | D—H | H···A | D···A | D—H···A |
O3—H3···O4i | 0.82 | 1.82 | 2.6381 (14) | 171.5 |
N2—H2D···O5ii | 0.89 | 2.30 | 3.0542 (17) | 142.0 |
N2—H2D···O1iii | 0.89 | 2.26 | 2.9200 (17) | 130.4 |
N2—H2C···O8iv | 0.89 | 2.06 | 2.9159 (17) | 161.5 |
N2—H2C···O4 | 0.89 | 2.45 | 2.9317 (16) | 114.2 |
N2—H2B···O7 | 0.89 | 2.57 | 3.1795 (18) | 126.4 |
N2—H2B···O6 | 0.89 | 2.09 | 2.9720 (17) | 171.9 |
Symmetry codes: (i) −x+2, −y, −z; (ii) x+1, y, z; (iii) x+1, y+1, z; (iv) −x+1, −y+1, −z. |
Acknowledgements
This work was supported by the Technical Fund Financing Projects (No. 9207042464 and 9207041482) from Southeast University to Zhi-Rong Qu.
References
Cohen, J. H., Abdel-Magid, A. F., Almond, H. R. Jr & Maryanoff, C. A. (2002). Tetrahedron Lett. 43, 1977–1981. Web of Science CrossRef CAS Google Scholar
Ferguson, G. (1999). PRPKAPPA. University of Guelph, Canada. Google Scholar
Qu, Z.-R., Zhao, H., Wang, Y.-P., Wang, X.-S., Ye, Q., Li, Y.-H., Xiong, R.-G., Abrahams, B. F., Liu, Z.-G. & Xue, Z.-L. (2004). Chem. Eur. J. 10, 54–60. 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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β-Amino acids are important molecules due to their pharmacological properties. Recently, there have been an increased interest in the enantiomeric preparation of β-amino acids as precursors for the synthesis of novel biologically active compounds (Cohen et al., 2002). In addition, β-amino acids are attractive ligands for use in the generation of polar coordination polymers, especially when one considers the ferroelectric compounds (Qu et al., 2004).
The molecular structure of the title compound C9H11N2O4+.ClO4- is shown in Fig. 1. The crystal is stabilized by intermolecucar hydrogen bonds of N—H···O, C—H···O, O—H···O type (Table 1) that connect neighbouring cations and anions, resulting in a two-dimensional network shown in Fig. 2).