organic compounds
(S)-1-Carboxy-2-(4-nitrophenyl)ethanaminium bromide
aOrdered Matter Science Research Center, College of Chemistry and Chemical Engineering, Southeast University, Nanjing 210096, People's Republic of China
*Correspondence e-mail: fudavid88@yahoo.com.cn
In the 9H11N2O4+·Br−, the ethanaminium cations and Br− anions are linked together by N—H⋯Br and O—H⋯Br hydrogen bonding. In the cation, the nitro group is twisted with respect to the benzene ring, making a dihedral angle of 21.43 (5)°.
of the title compound, CRelated literature
For amino acid derivatives as ligands for the construction of metal-organic frameworks, see: Fu et al. (2007).
Experimental
Crystal data
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Data collection: CrystalClear (Rigaku, 2005); cell CrystalClear; data reduction: CrystalClear; program(s) used to solve structure: SHELXTL/PC (Sheldrick, 2008); program(s) used to refine structure: SHELXTL/PC; molecular graphics: SHELXTL/PC; software used to prepare material for publication: SHELXTL/PC.
Supporting information
10.1107/S1600536809035211/xu2595sup1.cif
contains datablocks I, global. DOI:Structure factors: contains datablock I. DOI: 10.1107/S1600536809035211/xu2595Isup2.hkl
A mixture of 2-amino-3-phenylpropanoic acid (4.71g, 30 mmol), concentrated nitric acid (4.0 ml, 14 M) and concentrated sulfuric acid (1.5 ml, 18 M) was stirred at 383 K for 3 h under nitrogen atmosphere. The resulting solution was poured into ice water (100 ml), then filtered and washed with distilled water. The crude product was recrystallized with distilled water by adding dilute HBr (4 ml, 4 M) to yield colorless needle-like single crystals.
H atoms were positioned geometrically and treated as riding with C—H = 0.93 (aromatic), 0.97 (methylene), 0.98 Å (methine) and N—H = 0.89 Å, O—H = 0.85 Å with Uiso(H) = 1.2Ueq(C) and Uiso(H) = 1.5Ueq(O,N).
Data collection: CrystalClear (Rigaku, 2005); cell
CrystalClear (Rigaku, 2005); data reduction: CrystalClear (Rigaku, 2005); program(s) used to solve structure: SHELXTL/PC (Sheldrick, 2008); program(s) used to refine structure: SHELXTL/PC (Sheldrick, 2008); molecular graphics: SHELXTL/PC (Sheldrick, 2008); software used to prepare material for publication: SHELXTL/PC (Sheldrick, 2008).Fig. 1. The structure of the title compound with the atomic numbering scheme. Displacement ellipsoids are drawn at the 30% probability level. |
C9H11N2O4+·Br− | F(000) = 292 |
Mr = 291.11 | Dx = 1.653 Mg m−3 |
Monoclinic, P21 | Mo Kα radiation, λ = 0.71073 Å |
Hall symbol: P 2yb | Cell parameters from 2427 reflections |
a = 5.5378 (11) Å | θ = 3.1–27.4° |
b = 7.4158 (15) Å | µ = 3.52 mm−1 |
c = 14.246 (3) Å | T = 298 K |
β = 91.15 (3)° | Needle, colourless |
V = 584.9 (2) Å3 | 0.40 × 0.05 × 0.05 mm |
Z = 2 |
Rigaku Mercury2 diffractometer | 2633 independent reflections |
Radiation source: fine-focus sealed tube | 2427 reflections with I > 2σ(I) |
Graphite monochromator | Rint = 0.039 |
Detector resolution: 13.6612 pixels mm-1 | θmax = 27.4°, θmin = 3.1° |
CCD profile fitting scans | h = −7→7 |
Absorption correction: multi-scan (CrystalClear; Rigaku, 2005) | k = −9→9 |
Tmin = 0.76, Tmax = 0.84 | l = −18→18 |
5994 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)] = 0.032 | H-atom parameters constrained |
wR(F2) = 0.069 | w = 1/[σ2(Fo2) + (0.02P)2] where P = (Fo2 + 2Fc2)/3 |
S = 1.04 | (Δ/σ)max < 0.001 |
2633 reflections | Δρmax = 0.26 e Å−3 |
146 parameters | Δρmin = −0.31 e Å−3 |
1 restraint | Absolute structure: Flack (1983), 1202 Friedel pairs |
Primary atom site location: structure-invariant direct methods | Absolute structure parameter: −0.025 (11) |
C9H11N2O4+·Br− | V = 584.9 (2) Å3 |
Mr = 291.11 | Z = 2 |
Monoclinic, P21 | Mo Kα radiation |
a = 5.5378 (11) Å | µ = 3.52 mm−1 |
b = 7.4158 (15) Å | T = 298 K |
c = 14.246 (3) Å | 0.40 × 0.05 × 0.05 mm |
β = 91.15 (3)° |
Rigaku Mercury2 diffractometer | 2633 independent reflections |
Absorption correction: multi-scan (CrystalClear; Rigaku, 2005) | 2427 reflections with I > 2σ(I) |
Tmin = 0.76, Tmax = 0.84 | Rint = 0.039 |
5994 measured reflections |
R[F2 > 2σ(F2)] = 0.032 | H-atom parameters constrained |
wR(F2) = 0.069 | Δρmax = 0.26 e Å−3 |
S = 1.04 | Δρmin = −0.31 e Å−3 |
2633 reflections | Absolute structure: Flack (1983), 1202 Friedel pairs |
146 parameters | Absolute structure parameter: −0.025 (11) |
1 restraint |
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 > 2sigma(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 | ||
O2 | −0.1236 (3) | 0.1957 (5) | 0.09374 (15) | 0.0526 (5) | |
C7 | 0.3705 (6) | 0.3156 (4) | 0.2428 (2) | 0.0396 (7) | |
H7A | 0.3926 | 0.2030 | 0.2766 | 0.048* | |
H7B | 0.5266 | 0.3746 | 0.2405 | 0.048* | |
C9 | 0.0598 (5) | 0.1544 (4) | 0.1348 (2) | 0.0365 (8) | |
C8 | 0.2848 (6) | 0.2725 (4) | 0.1416 (2) | 0.0346 (7) | |
H8 | 0.4158 | 0.2079 | 0.1109 | 0.041* | |
C6 | 0.2007 (5) | 0.4342 (4) | 0.29749 (19) | 0.0361 (7) | |
C2 | 0.0984 (6) | 0.7325 (5) | 0.3539 (2) | 0.0488 (10) | |
H2 | 0.1295 | 0.8556 | 0.3573 | 0.059* | |
C4 | −0.1471 (7) | 0.4776 (6) | 0.3932 (2) | 0.0488 (10) | |
H4 | −0.2795 | 0.4309 | 0.4242 | 0.059* | |
C3 | −0.0974 (6) | 0.6591 (5) | 0.3970 (2) | 0.0474 (10) | |
C5 | 0.0006 (6) | 0.3660 (4) | 0.3434 (2) | 0.0418 (8) | |
H5 | −0.0333 | 0.2433 | 0.3402 | 0.050* | |
C1 | 0.2497 (6) | 0.6173 (5) | 0.3048 (2) | 0.0427 (8) | |
H1D | 0.3860 | 0.6640 | 0.2765 | 0.051* | |
O4 | −0.3908 (5) | 0.7160 (9) | 0.5059 (2) | 0.1119 (15) | |
N2 | −0.2621 (7) | 0.7828 (7) | 0.4470 (3) | 0.0783 (12) | |
O3 | −0.2547 (8) | 0.9417 (7) | 0.4254 (4) | 0.1225 (16) | |
N1 | 0.2332 (4) | 0.4392 (4) | 0.08589 (18) | 0.0375 (6) | |
H1A | 0.2284 | 0.4121 | 0.0250 | 0.056* | |
H1B | 0.3490 | 0.5200 | 0.0971 | 0.056* | |
H1C | 0.0915 | 0.4846 | 0.1024 | 0.056* | |
O1 | 0.0979 (5) | −0.0009 (3) | 0.1777 (2) | 0.0697 (9) | |
H1 | −0.0290 | −0.0651 | 0.1733 | 0.104* | |
Br1 | 0.72355 (5) | 0.69798 (6) | 0.112290 (18) | 0.04362 (11) |
U11 | U22 | U33 | U12 | U13 | U23 | |
O2 | 0.0343 (11) | 0.0513 (12) | 0.0719 (14) | −0.0139 (17) | −0.0077 (10) | 0.010 (2) |
C7 | 0.0327 (17) | 0.0424 (18) | 0.0434 (19) | −0.0014 (14) | −0.0097 (13) | −0.0022 (14) |
C9 | 0.0373 (16) | 0.032 (2) | 0.0404 (16) | −0.0075 (12) | −0.0008 (13) | −0.0020 (12) |
C8 | 0.0312 (16) | 0.0363 (16) | 0.0361 (16) | −0.0054 (12) | −0.0016 (12) | −0.0049 (13) |
C6 | 0.0351 (16) | 0.0460 (18) | 0.0267 (15) | −0.0042 (14) | −0.0064 (12) | 0.0013 (13) |
C2 | 0.060 (2) | 0.047 (3) | 0.0399 (17) | −0.0022 (17) | −0.0021 (16) | −0.0023 (15) |
C4 | 0.0346 (18) | 0.076 (3) | 0.036 (2) | −0.0130 (19) | 0.0044 (14) | −0.0054 (17) |
C3 | 0.0413 (19) | 0.065 (3) | 0.0356 (17) | 0.0010 (17) | −0.0043 (13) | −0.0170 (16) |
C5 | 0.0438 (19) | 0.0447 (19) | 0.0368 (18) | −0.0144 (14) | −0.0050 (15) | 0.0010 (14) |
C1 | 0.045 (2) | 0.052 (2) | 0.0310 (17) | −0.0108 (15) | 0.0004 (14) | −0.0024 (14) |
O4 | 0.074 (2) | 0.156 (4) | 0.108 (2) | −0.038 (3) | 0.0436 (19) | −0.074 (3) |
N2 | 0.064 (3) | 0.099 (3) | 0.072 (3) | −0.001 (2) | 0.002 (2) | −0.046 (2) |
O3 | 0.123 (4) | 0.095 (3) | 0.150 (4) | 0.034 (3) | 0.027 (3) | −0.037 (3) |
N1 | 0.0355 (14) | 0.0441 (16) | 0.0330 (13) | −0.0151 (12) | 0.0001 (10) | −0.0006 (12) |
O1 | 0.072 (2) | 0.0427 (15) | 0.092 (2) | −0.0215 (13) | −0.0365 (17) | 0.0197 (14) |
Br1 | 0.04125 (17) | 0.04304 (17) | 0.04656 (17) | −0.01590 (17) | 0.00035 (11) | 0.00473 (18) |
O2—C9 | 1.201 (3) | C2—H2 | 0.9300 |
C7—C6 | 1.515 (4) | C4—C5 | 1.371 (5) |
C7—C8 | 1.543 (4) | C4—C3 | 1.375 (6) |
C7—H7A | 0.9700 | C4—H4 | 0.9300 |
C7—H7B | 0.9700 | C3—N2 | 1.486 (5) |
C9—O1 | 1.318 (4) | C5—H5 | 0.9300 |
C9—C8 | 1.525 (4) | C1—H1D | 0.9300 |
C8—N1 | 1.493 (4) | O4—N2 | 1.217 (5) |
C8—H8 | 0.9800 | N2—O3 | 1.219 (6) |
C6—C1 | 1.388 (5) | N1—H1A | 0.8900 |
C6—C5 | 1.393 (4) | N1—H1B | 0.8900 |
C2—C3 | 1.369 (5) | N1—H1C | 0.8900 |
C2—C1 | 1.395 (5) | O1—H1 | 0.8500 |
C6—C7—C8 | 114.7 (3) | C5—C4—H4 | 120.3 |
C6—C7—H7A | 108.6 | C3—C4—H4 | 120.3 |
C8—C7—H7A | 108.6 | C2—C3—C4 | 122.1 (3) |
C6—C7—H7B | 108.6 | C2—C3—N2 | 117.9 (4) |
C8—C7—H7B | 108.6 | C4—C3—N2 | 119.9 (4) |
H7A—C7—H7B | 107.6 | C4—C5—C6 | 120.8 (3) |
O2—C9—O1 | 125.0 (3) | C4—C5—H5 | 119.6 |
O2—C9—C8 | 124.5 (3) | C6—C5—H5 | 119.6 |
O1—C9—C8 | 110.5 (3) | C6—C1—C2 | 121.2 (3) |
N1—C8—C9 | 107.1 (2) | C6—C1—H1D | 119.4 |
N1—C8—C7 | 112.2 (2) | C2—C1—H1D | 119.4 |
C9—C8—C7 | 114.4 (3) | O4—N2—O3 | 126.2 (5) |
N1—C8—H8 | 107.6 | O4—N2—C3 | 117.0 (5) |
C9—C8—H8 | 107.6 | O3—N2—C3 | 116.8 (4) |
C7—C8—H8 | 107.6 | C8—N1—H1A | 109.5 |
C1—C6—C5 | 118.4 (3) | C8—N1—H1B | 109.5 |
C1—C6—C7 | 119.0 (3) | H1A—N1—H1B | 109.5 |
C5—C6—C7 | 122.6 (3) | C8—N1—H1C | 109.5 |
C3—C2—C1 | 118.0 (3) | H1A—N1—H1C | 109.5 |
C3—C2—H2 | 121.0 | H1B—N1—H1C | 109.5 |
C1—C2—H2 | 121.0 | C9—O1—H1 | 109.3 |
C5—C4—C3 | 119.3 (3) | ||
O2—C9—C8—N1 | −1.9 (4) | C5—C4—C3—N2 | 177.2 (3) |
O1—C9—C8—N1 | 176.0 (3) | C3—C4—C5—C6 | 0.6 (5) |
O2—C9—C8—C7 | 123.1 (3) | C1—C6—C5—C4 | 1.2 (5) |
O1—C9—C8—C7 | −58.9 (4) | C7—C6—C5—C4 | 179.1 (3) |
C6—C7—C8—N1 | 55.2 (4) | C5—C6—C1—C2 | −2.3 (5) |
C6—C7—C8—C9 | −67.1 (3) | C7—C6—C1—C2 | 179.6 (3) |
C8—C7—C6—C1 | −99.1 (3) | C3—C2—C1—C6 | 1.7 (5) |
C8—C7—C6—C5 | 82.9 (4) | C2—C3—N2—O4 | −159.6 (4) |
C1—C2—C3—C4 | 0.2 (5) | C4—C3—N2—O4 | 21.8 (5) |
C1—C2—C3—N2 | −178.4 (3) | C2—C3—N2—O3 | 20.1 (6) |
C5—C4—C3—C2 | −1.3 (5) | C4—C3—N2—O3 | −158.4 (4) |
D—H···A | D—H | H···A | D···A | D—H···A |
N1—H1A···Br1i | 0.89 | 2.54 | 3.355 (3) | 153 |
N1—H1B···Br1 | 0.89 | 2.46 | 3.340 (2) | 168 |
N1—H1C···Br1ii | 0.89 | 2.59 | 3.440 (3) | 161 |
O1—H1···Br1iii | 0.85 | 2.38 | 3.174 (3) | 155 |
Symmetry codes: (i) −x+1, y−1/2, −z; (ii) x−1, y, z; (iii) x−1, y−1, z. |
Experimental details
Crystal data | |
Chemical formula | C9H11N2O4+·Br− |
Mr | 291.11 |
Crystal system, space group | Monoclinic, P21 |
Temperature (K) | 298 |
a, b, c (Å) | 5.5378 (11), 7.4158 (15), 14.246 (3) |
β (°) | 91.15 (3) |
V (Å3) | 584.9 (2) |
Z | 2 |
Radiation type | Mo Kα |
µ (mm−1) | 3.52 |
Crystal size (mm) | 0.40 × 0.05 × 0.05 |
Data collection | |
Diffractometer | Rigaku Mercury2 diffractometer |
Absorption correction | Multi-scan (CrystalClear; Rigaku, 2005) |
Tmin, Tmax | 0.76, 0.84 |
No. of measured, independent and observed [I > 2σ(I)] reflections | 5994, 2633, 2427 |
Rint | 0.039 |
(sin θ/λ)max (Å−1) | 0.648 |
Refinement | |
R[F2 > 2σ(F2)], wR(F2), S | 0.032, 0.069, 1.04 |
No. of reflections | 2633 |
No. of parameters | 146 |
No. of restraints | 1 |
H-atom treatment | H-atom parameters constrained |
Δρmax, Δρmin (e Å−3) | 0.26, −0.31 |
Absolute structure | Flack (1983), 1202 Friedel pairs |
Absolute structure parameter | −0.025 (11) |
Computer programs: CrystalClear (Rigaku, 2005), SHELXTL/PC (Sheldrick, 2008).
D—H···A | D—H | H···A | D···A | D—H···A |
N1—H1A···Br1i | 0.89 | 2.54 | 3.355 (3) | 152.9 |
N1—H1B···Br1 | 0.89 | 2.46 | 3.340 (2) | 168.2 |
N1—H1C···Br1ii | 0.89 | 2.59 | 3.440 (3) | 161.1 |
O1—H1···Br1iii | 0.85 | 2.38 | 3.174 (3) | 155.3 |
Symmetry codes: (i) −x+1, y−1/2, −z; (ii) x−1, y, z; (iii) x−1, y−1, z. |
Acknowledgements
This work was supported by a start-up grant from Southeast University for Professor Ren-Gen Xiong.
References
Flack, H. D. (1983). Acta Cryst. A39, 876–881. CrossRef CAS Web of Science IUCr Journals Google Scholar
Fu, D.-W., Song, Y.-M., Wang, G.-X., Ye, Q., Xiong, R.-G., Akutagawa, T., Nakamura, T., Chan, P. W. H. & Huang, S. P. D. (2007). J. Am. Chem. Soc. 129, 5346–5347. Web of Science CSD CrossRef PubMed CAS 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
This is an open-access article distributed under the terms of the Creative Commons Attribution (CC-BY) Licence, which permits unrestricted use, distribution, and reproduction in any medium, provided the original authors and source are cited.
Amino acid derivatives are a class of excellent ligands for the construction of novel metal-organic frameworks (Fu et al., 2007). We report here the crystal structure of the title compound.
The title compound is built up from a Br- anion and a protonated amino group cation (Fig. 1). The nitro group is twisted from the benzene ring plane by a dihedral angle of 21.43 (5)°, and the 2-aminopropanoate substituent group is a zig-zag chain.
The crystal packing is stabilized by cation-anion N—H···Br and O—H···Br H-bonds building an infinite two-dimensional network developing parallel to the (1 1 0) plane (Table 1).