organic compounds
3-Ammonio-4-hydroxybenzoate monohydrate
aDepartment of Chemistry, Government College University, Lahore, Pakistan, bDepartment of Physics, University of Sargodha, Sargodha, Pakistan, and cDepartment of Botany, Government College University, Lahore, Pakistan
*Correspondence e-mail: dmntahir_uos@yahoo.com
The title compound, C7H7NO3·H2O, which crystallized as a hydrate, was obtained from an extraction of the plant species Saussurea atkinsonii of the asteraceae family collected from the hilly area (Ayubia) of Pakistan during the flowering season. The dihedral angle between the benzene ring and the carboxylate group is 25.64 (5)°. In the crystal, the packing is consolidated by N—H⋯O and O—H⋯O hydrogen bonds, as well as weak aromatic π–π stacking [centroid–centroid separation = 3.9365 (9) Å] and C=O⋯π interactions.
Related literature
For a related structure, see: Bertasso et al. (2001). For reference structural data, see: Allen et al. (1987).
Experimental
Crystal data
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Refinement
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Data collection: APEX2 (Bruker, 2007); cell SAINT (Bruker, 2007); data reduction: SAINT; 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) and PLATON (Spek, 2009); software used to prepare material for publication: WinGX (Farrugia, 1999) and PLATON.
Supporting information
10.1107/S1600536809017462/hb2969sup1.cif
contains datablocks global, I. DOI:Structure factors: contains datablock I. DOI: 10.1107/S1600536809017462/hb2969Isup2.hkl
The Specie Saussurea atkinsonii of asteraceae family was dried inside room for 20–25 days as a whole and grinded. The extract was obtained using soxhlet apparatus in 50% chloroform and 50% methanol and it was subjected to isolation by performing
and thin layer The extract obtained was recrystallized from methanol and light brown rods of (I) were obtained. The water found in the structure was presumably incorporated from the atomsphere.The coordinates of H-atoms of hydroxy, ammonium moiety and water molecule were refined. The other H-atoms were positioned geometrically, with C-H = 0.93 Å for aromatic type and constrained to ride on their parent atoms, with Uiso(H) = 1.2Ueq(C, N, O).
Data collection: APEX2 (Bruker, 2007); cell
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) and PLATON (Spek, 2009); software used to prepare material for publication: WinGX (Farrugia, 1999) and PLATON (Spek, 2009).Fig. 1. View of (I) with displacement ellipsoids drawn at the 50% probability level. H-atoms are shown by small circles of arbitrary radius. | |
Fig. 2. The partial packing of (I), showing that molecules form three-dimensional polymeric network. |
C7H7NO3·H2O | F(000) = 720 |
Mr = 171.15 | Dx = 1.576 Mg m−3 |
Orthorhombic, Pbca | Mo Kα radiation, λ = 0.71073 Å |
Hall symbol: -P 2ac 2ab | Cell parameters from 1725 reflections |
a = 8.7711 (3) Å | θ = 3.2–28.3° |
b = 12.7193 (7) Å | µ = 0.13 mm−1 |
c = 12.9289 (6) Å | T = 296 K |
V = 1442.38 (11) Å3 | Rod, light brown |
Z = 8 | 0.26 × 0.20 × 0.20 mm |
Bruker Kappa APEXII CCD diffractometer | 1752 independent reflections |
Radiation source: fine-focus sealed tube | 1277 reflections with I > 2σ(I) |
Graphite monochromator | Rint = 0.033 |
Detector resolution: 7.40 pixels mm-1 | θmax = 28.3°, θmin = 3.2° |
ω scans | h = −11→11 |
Absorption correction: multi-scan (SADABS; Bruker, 2005) | k = −15→16 |
Tmin = 0.971, Tmax = 0.976 | l = −11→17 |
8827 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)] = 0.042 | Hydrogen site location: inferred from neighbouring sites |
wR(F2) = 0.118 | H atoms treated by a mixture of independent and constrained refinement |
S = 1.06 | w = 1/[σ2(Fo2) + (0.0684P)2 + 0.0409P] where P = (Fo2 + 2Fc2)/3 |
1725 reflections | (Δ/σ)max < 0.001 |
127 parameters | Δρmax = 0.31 e Å−3 |
0 restraints | Δρmin = −0.24 e Å−3 |
C7H7NO3·H2O | V = 1442.38 (11) Å3 |
Mr = 171.15 | Z = 8 |
Orthorhombic, Pbca | Mo Kα radiation |
a = 8.7711 (3) Å | µ = 0.13 mm−1 |
b = 12.7193 (7) Å | T = 296 K |
c = 12.9289 (6) Å | 0.26 × 0.20 × 0.20 mm |
Bruker Kappa APEXII CCD diffractometer | 1752 independent reflections |
Absorption correction: multi-scan (SADABS; Bruker, 2005) | 1277 reflections with I > 2σ(I) |
Tmin = 0.971, Tmax = 0.976 | Rint = 0.033 |
8827 measured reflections |
R[F2 > 2σ(F2)] = 0.042 | 0 restraints |
wR(F2) = 0.118 | H atoms treated by a mixture of independent and constrained refinement |
S = 1.06 | Δρmax = 0.31 e Å−3 |
1725 reflections | Δρmin = −0.24 e Å−3 |
127 parameters |
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 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 | 0.69598 (12) | 0.67023 (9) | 0.16442 (9) | 0.0284 (4) | |
O2 | 0.83764 (11) | 0.53206 (10) | 0.12269 (9) | 0.0302 (4) | |
O3 | 0.20823 (11) | 0.29862 (10) | 0.11448 (10) | 0.0319 (4) | |
N1 | 0.48231 (14) | 0.21872 (11) | 0.16388 (11) | 0.0232 (4) | |
C1 | 0.57236 (15) | 0.50443 (12) | 0.14203 (11) | 0.0205 (5) | |
C2 | 0.58869 (15) | 0.39732 (13) | 0.15731 (11) | 0.0203 (4) | |
C3 | 0.46511 (14) | 0.33137 (12) | 0.14912 (11) | 0.0193 (4) | |
C4 | 0.32078 (15) | 0.37051 (12) | 0.12444 (12) | 0.0212 (4) | |
C5 | 0.30300 (15) | 0.47766 (13) | 0.11230 (12) | 0.0241 (5) | |
C6 | 0.42742 (15) | 0.54444 (13) | 0.12153 (12) | 0.0232 (4) | |
C7 | 0.71208 (15) | 0.57284 (13) | 0.14299 (11) | 0.0216 (5) | |
O4 | 0.43081 (12) | 0.34489 (11) | 0.45169 (10) | 0.0308 (4) | |
H1A | 0.587 (2) | 0.2008 (14) | 0.1721 (12) | 0.0278* | |
H1B | 0.4519 (19) | 0.1828 (14) | 0.1034 (15) | 0.0278* | |
H1C | 0.4229 (18) | 0.1948 (14) | 0.2189 (14) | 0.0278* | |
H2 | 0.68403 | 0.36974 | 0.17325 | 0.0243* | |
H3 | 0.119 (2) | 0.3252 (16) | 0.0913 (15) | 0.0383* | |
H5 | 0.20714 | 0.50524 | 0.09785 | 0.0289* | |
H6 | 0.41402 | 0.61656 | 0.11398 | 0.0279* | |
H41 | 0.3898 (19) | 0.4057 (16) | 0.4289 (15) | 0.0369* | |
H42 | 0.381 (2) | 0.2927 (16) | 0.4217 (15) | 0.0369* |
U11 | U22 | U33 | U12 | U13 | U23 | |
O1 | 0.0316 (5) | 0.0154 (7) | 0.0383 (7) | −0.0051 (4) | 0.0053 (4) | −0.0044 (5) |
O2 | 0.0231 (5) | 0.0245 (7) | 0.0430 (7) | −0.0032 (5) | 0.0043 (4) | −0.0063 (5) |
O3 | 0.0193 (5) | 0.0217 (7) | 0.0548 (8) | −0.0032 (4) | −0.0059 (5) | 0.0000 (6) |
N1 | 0.0214 (6) | 0.0150 (8) | 0.0331 (8) | 0.0010 (5) | 0.0027 (5) | 0.0015 (6) |
C1 | 0.0236 (7) | 0.0164 (9) | 0.0216 (8) | −0.0029 (5) | 0.0013 (5) | −0.0026 (6) |
C2 | 0.0183 (6) | 0.0190 (9) | 0.0235 (8) | 0.0006 (5) | 0.0011 (5) | −0.0006 (6) |
C3 | 0.0209 (6) | 0.0142 (9) | 0.0228 (8) | 0.0003 (5) | 0.0018 (5) | 0.0013 (6) |
C4 | 0.0195 (6) | 0.0188 (9) | 0.0254 (8) | −0.0024 (5) | −0.0004 (5) | −0.0019 (6) |
C5 | 0.0205 (6) | 0.0218 (9) | 0.0300 (9) | 0.0041 (6) | −0.0024 (6) | 0.0003 (7) |
C6 | 0.0290 (7) | 0.0137 (8) | 0.0270 (8) | 0.0014 (6) | 0.0000 (5) | 0.0005 (7) |
C7 | 0.0265 (7) | 0.0169 (9) | 0.0214 (8) | −0.0044 (6) | 0.0013 (5) | −0.0002 (6) |
O4 | 0.0257 (5) | 0.0255 (8) | 0.0412 (7) | 0.0017 (5) | −0.0044 (4) | 0.0023 (6) |
O1—C7 | 1.277 (2) | C1—C7 | 1.503 (2) |
O2—C7 | 1.2453 (17) | C1—C6 | 1.3948 (19) |
O3—C4 | 1.3518 (18) | C1—C2 | 1.384 (2) |
O3—H3 | 0.904 (18) | C2—C3 | 1.375 (2) |
O4—H41 | 0.90 (2) | C3—C4 | 1.3972 (19) |
O4—H42 | 0.884 (19) | C4—C5 | 1.381 (2) |
N1—C3 | 1.453 (2) | C5—C6 | 1.388 (2) |
N1—H1C | 0.933 (17) | C2—H2 | 0.9300 |
N1—H1A | 0.952 (18) | C5—H5 | 0.9300 |
N1—H1B | 0.944 (19) | C6—H6 | 0.9300 |
C4—O3—H3 | 114.3 (13) | O3—C4—C5 | 125.06 (12) |
H41—O4—H42 | 107.7 (17) | C3—C4—C5 | 118.69 (13) |
C3—N1—H1A | 110.5 (11) | O3—C4—C3 | 116.26 (13) |
C3—N1—H1B | 109.8 (11) | C4—C5—C6 | 120.36 (13) |
H1A—N1—H1B | 104.4 (14) | C1—C6—C5 | 120.64 (15) |
H1A—N1—H1C | 112.1 (14) | O1—C7—O2 | 123.20 (14) |
C3—N1—H1C | 111.3 (11) | O2—C7—C1 | 118.57 (14) |
H1B—N1—H1C | 108.4 (15) | O1—C7—C1 | 118.24 (12) |
C2—C1—C6 | 118.72 (13) | C3—C2—H2 | 120.00 |
C2—C1—C7 | 118.97 (12) | C1—C2—H2 | 120.00 |
C6—C1—C7 | 122.24 (14) | C4—C5—H5 | 120.00 |
C1—C2—C3 | 120.53 (13) | C6—C5—H5 | 120.00 |
N1—C3—C2 | 120.64 (12) | C1—C6—H6 | 120.00 |
C2—C3—C4 | 120.97 (14) | C5—C6—H6 | 120.00 |
N1—C3—C4 | 118.38 (12) | ||
C6—C1—C2—C3 | 2.1 (2) | C1—C2—C3—C4 | 0.5 (2) |
C7—C1—C2—C3 | −175.02 (13) | N1—C3—C4—O3 | −1.1 (2) |
C2—C1—C6—C5 | −2.7 (2) | N1—C3—C4—C5 | 178.75 (14) |
C7—C1—C6—C5 | 174.30 (14) | C2—C3—C4—O3 | 177.60 (14) |
C2—C1—C7—O1 | −156.35 (14) | C2—C3—C4—C5 | −2.5 (2) |
C2—C1—C7—O2 | 23.8 (2) | O3—C4—C5—C6 | −178.25 (15) |
C6—C1—C7—O1 | 26.7 (2) | C3—C4—C5—C6 | 1.9 (2) |
C6—C1—C7—O2 | −153.17 (15) | C4—C5—C6—C1 | 0.7 (2) |
C1—C2—C3—N1 | 179.24 (13) |
D—H···A | D—H | H···A | D···A | D—H···A |
N1—H1A···O1i | 0.952 (18) | 1.945 (18) | 2.8884 (16) | 170.4 (14) |
N1—H1A···O2i | 0.952 (18) | 2.335 (18) | 2.9008 (18) | 117.6 (13) |
N1—H1B···O4ii | 0.944 (19) | 2.001 (19) | 2.8957 (19) | 157.4 (16) |
N1—H1C···O1iii | 0.933 (17) | 1.860 (17) | 2.7846 (18) | 170.5 (16) |
O3—H3···O4iv | 0.904 (18) | 1.760 (18) | 2.6456 (15) | 166.0 (19) |
O4—H41···O2iv | 0.90 (2) | 1.80 (2) | 2.6945 (18) | 171.1 (17) |
O4—H42···O1iii | 0.884 (19) | 2.03 (2) | 2.9027 (18) | 168.8 (17) |
C6—H6···O3v | 0.93 | 2.55 | 3.446 (2) | 161 |
C7—O2···CgAvi | 1.25 (1) | 3.49 (1) | 3.9313 (16) | 101 (1) |
Symmetry codes: (i) −x+3/2, y−1/2, z; (ii) x, −y+1/2, z−1/2; (iii) −x+1, y−1/2, −z+1/2; (iv) x−1/2, y, −z+1/2; (v) −x+1/2, y+1/2, z; (vi) x+1/2, y, −z+1/2. |
Experimental details
Crystal data | |
Chemical formula | C7H7NO3·H2O |
Mr | 171.15 |
Crystal system, space group | Orthorhombic, Pbca |
Temperature (K) | 296 |
a, b, c (Å) | 8.7711 (3), 12.7193 (7), 12.9289 (6) |
V (Å3) | 1442.38 (11) |
Z | 8 |
Radiation type | Mo Kα |
µ (mm−1) | 0.13 |
Crystal size (mm) | 0.26 × 0.20 × 0.20 |
Data collection | |
Diffractometer | Bruker Kappa APEXII CCD diffractometer |
Absorption correction | Multi-scan (SADABS; Bruker, 2005) |
Tmin, Tmax | 0.971, 0.976 |
No. of measured, independent and observed [I > 2σ(I)] reflections | 8827, 1752, 1277 |
Rint | 0.033 |
(sin θ/λ)max (Å−1) | 0.667 |
Refinement | |
R[F2 > 2σ(F2)], wR(F2), S | 0.042, 0.118, 1.06 |
No. of reflections | 1725 |
No. of parameters | 127 |
H-atom treatment | H atoms treated by a mixture of independent and constrained refinement |
Δρmax, Δρmin (e Å−3) | 0.31, −0.24 |
Computer programs: APEX2 (Bruker, 2007), SAINT (Bruker, 2007), SHELXS97 (Sheldrick, 2008), SHELXL97 (Sheldrick, 2008), ORTEP-3 for Windows (Farrugia, 1997) and PLATON (Spek, 2009), WinGX (Farrugia, 1999) and PLATON (Spek, 2009).
D—H···A | D—H | H···A | D···A | D—H···A |
N1—H1A···O1i | 0.952 (18) | 1.945 (18) | 2.8884 (16) | 170.4 (14) |
N1—H1A···O2i | 0.952 (18) | 2.335 (18) | 2.9008 (18) | 117.6 (13) |
N1—H1B···O4ii | 0.944 (19) | 2.001 (19) | 2.8957 (19) | 157.4 (16) |
N1—H1C···O1iii | 0.933 (17) | 1.860 (17) | 2.7846 (18) | 170.5 (16) |
O3—H3···O4iv | 0.904 (18) | 1.760 (18) | 2.6456 (15) | 166.0 (19) |
O4—H41···O2iv | 0.90 (2) | 1.80 (2) | 2.6945 (18) | 171.1 (17) |
O4—H42···O1iii | 0.884 (19) | 2.03 (2) | 2.9027 (18) | 168.8 (17) |
C6—H6···O3v | 0.93 | 2.55 | 3.446 (2) | 161 |
C7—O2···CgAvi | 1.2453 (17) | 3.4940 (13) | 3.9313 (16) | 101.24 (9) |
Symmetry codes: (i) −x+3/2, y−1/2, z; (ii) x, −y+1/2, z−1/2; (iii) −x+1, y−1/2, −z+1/2; (iv) x−1/2, y, −z+1/2; (v) −x+1/2, y+1/2, z; (vi) x+1/2, y, −z+1/2. |
Acknowledgements
SU greatfully acknowledges the Higher Education Commission, Islamabad, Pakistan, for providing a Scholarship under the Indigenous PhD Program (PIN 042–121314-PS2–287).
References
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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.
The medicinal plants are available all over the world. Locally available plant specie Saussurea atkinsonii of asteraceae family was collected from hilly area (Ayubia) of Pakistan during the flowering season. The plant was dried inside room for 20–25 days. The title compound (I), (Fig. 1), is an extract of it in chloroform and methanol. The study of its bio-activity is in progress.
The crystal structure of (II) (4-vinylphenyl 3-amino-4-hydroxybenzoate or bagremycin A (Bertasso et al., 2001), has been reported which contains the aromatic ring along with heavy atoms of the substituants of (I). In the title compound, the bond distances and bond angles are within normal ranges (Allen et al., 1987). The benzene ring A (C1–C6) is planar and is oriented at a dihedral angle of 25.64 (5)° with the CO2 group. The N-atom of ammonium is in plane of the ring A, whereas the O-atom of hydroxy group is at a distance of -0.0580 (21) Å from the same.
There exist intensive intermolecular H-bonding (Table 1), resulting in three-dimensional polymeric network. There also exist CgA···CgAi [symmetry code i = 1 - x, 1 - y, -z] interaction at a distance of 3.9365 (9) Å, where CgA is the centroid of aromatic ring. The molecules may also be stabilized due to C==O···π interaction (Table 1).