organic compounds
2-(Ammoniomethyl)pyridinium sulfate monohydrate
aDepartment of Chemistry, University of the Free State, PO Box 339, Bloemfontein 9300, South Africa
*Correspondence e-mail: schuttem@ufs.ac.za
In the crystal of the title hydrated molecular salt, C6H10N22+·SO42−·H2O, N—H⋯O and O—H⋯O hydrogen bonds link the molecules into layers parallel to the ab plane. C—H⋯O hydrogen bonds are observed both within these layers and between molecules and ions in adjacent layers.
Related literature
For other salts of 2-aminomethylpyridine, see: Tooke et al. (2004); Mahjaub et al. (2005); Lemmerer et al. (2008); Khemiri et al. (2010); Døssing et al. (2001); Junk et al. (2006); Yuge et al. (2008).
Experimental
Crystal data
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Refinement
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Data collection: APEX2 (Bruker, 2008); cell SAINT-Plus (Bruker, 2008); data reduction: SAINT-Plus; program(s) used to solve structure: SHELXS97 (Sheldrick, 2008); program(s) used to refine structure: SHELXL97 (Sheldrick, 2008); molecular graphics: DIAMOND (Brandenburg & Putz, 2005); software used to prepare material for publication: WinGX (Farrugia, 1999).
Supporting information
10.1107/S1600536812007714/fy2043sup1.cif
contains datablocks global, I. DOI:Structure factors: contains datablock I. DOI: 10.1107/S1600536812007714/fy2043Isup2.hkl
Supporting information file. DOI: 10.1107/S1600536812007714/fy2043Isup3.cml
The
of (2-ammoniomethyl)pyridinium sulfate monohydrate was obtained by dissolving the ligand, 2-aminomethylpyridine, in water acidified with sulfuric acid. The final pH of the solution was recorded as pH = 6.1. The crystals were grown from this mixture by slow evaporation.Aromatic H atoms were positioned geometrically and allowed to ride on their parent atoms, with Uiso(H) = 1.2 Ueq(parent) of the parent atom with a C—H distance of 0.93 Å. The methene H atoms were placed in geometrically idealized positions and constrained to ride on the parent atom with Uiso(H) = 1.2 Ueq(C) and at a distance of 0.97 Å. The O– and N– bound H atoms were placed from the
and were refined freely with isotropic displacement parameters.Data collection: APEX2 (Bruker, 2008); cell
SAINT-Plus (Bruker, 2008); data reduction: SAINT-Plus (Bruker, 2008); program(s) used to solve structure: SHELXS97 (Sheldrick, 2008); program(s) used to refine structure: SHELXL97 (Sheldrick, 2008); molecular graphics: DIAMOND (Brandenburg & Putz, 2005); software used to prepare material for publication: WinGX (Farrugia, 1999).Fig. 1. Diamond representation of the title compound, showing the numbering scheme and displacement ellipsoids (50% probability). | |
Fig. 2. Packing of the title compound in the unit cell. Hydrogen atoms have been omitted for clarity. |
C6H10N22+·SO42−·H2O | Z = 2 |
Mr = 224.24 | F(000) = 236 |
Triclinic, P1 | Dx = 1.669 Mg m−3 |
a = 5.2804 (1) Å | Mo Kα radiation, λ = 0.71073 Å |
b = 6.9458 (2) Å | Cell parameters from 7388 reflections |
c = 12.4262 (3) Å | θ = 3.0–28.4° |
α = 81.392 (1)° | µ = 0.36 mm−1 |
β = 82.874 (1)° | T = 100 K |
γ = 85.193 (1)° | Cuboid, colourless |
V = 446.15 (2) Å3 | 0.35 × 0.34 × 0.23 mm |
Bruker APEXII CCD diffractometer | 1846 reflections with I > 2σ(I) |
Graphite monochromator | Rint = 0.023 |
ϕ and ω scans | θmax = 27.0°, θmin = 3.3° |
Absorption correction: multi-scan (SADABS; Bruker, 2008) | h = −5→6 |
Tmin = 0.881, Tmax = 0.921 | k = −8→8 |
9334 measured reflections | l = −15→15 |
1926 independent 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)] = 0.027 | Hydrogen site location: inferred from neighbouring sites |
wR(F2) = 0.075 | H atoms treated by a mixture of independent and constrained refinement |
S = 1.07 | w = 1/[σ2(Fo2) + (0.0416P)2 + 0.2718P] where P = (Fo2 + 2Fc2)/3 |
1926 reflections | (Δ/σ)max = 0.019 |
151 parameters | Δρmax = 0.35 e Å−3 |
0 restraints | Δρmin = −0.49 e Å−3 |
C6H10N22+·SO42−·H2O | γ = 85.193 (1)° |
Mr = 224.24 | V = 446.15 (2) Å3 |
Triclinic, P1 | Z = 2 |
a = 5.2804 (1) Å | Mo Kα radiation |
b = 6.9458 (2) Å | µ = 0.36 mm−1 |
c = 12.4262 (3) Å | T = 100 K |
α = 81.392 (1)° | 0.35 × 0.34 × 0.23 mm |
β = 82.874 (1)° |
Bruker APEXII CCD diffractometer | 1926 independent reflections |
Absorption correction: multi-scan (SADABS; Bruker, 2008) | 1846 reflections with I > 2σ(I) |
Tmin = 0.881, Tmax = 0.921 | Rint = 0.023 |
9334 measured reflections |
R[F2 > 2σ(F2)] = 0.027 | 0 restraints |
wR(F2) = 0.075 | H atoms treated by a mixture of independent and constrained refinement |
S = 1.07 | Δρmax = 0.35 e Å−3 |
1926 reflections | Δρmin = −0.49 e Å−3 |
151 parameters |
Experimental. The intensity data were collected on a Bruker X8 ApexII 4 K Kappa CCD diffractometer using an exposure time of 10 s/frame. A total of 2250 frames were collected with a frame width of 0.5° covering up to θ = 28.43° with 97.3% completeness accomplished. |
Geometry. All s.u.'s (except the s.u. in the dihedral angle between two l.s. planes) are estimated using the full covariance matrix. The cell s.u.'s are taken into account individually in the estimation of s.u.'s in distances, angles and torsion angles; correlations between s.u.'s in cell parameters are only used when they are defined by crystal symmetry. An approximate (isotropic) treatment of cell s.u.'s is used for estimating s.u.'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 > 2σ(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 | ||
S1 | 1.22129 (5) | −0.18907 (4) | 0.83046 (2) | 0.00951 (11) | |
O4 | 1.07225 (18) | −0.01241 (13) | 0.86655 (8) | 0.0137 (2) | |
O1 | 1.10127 (19) | −0.36349 (14) | 0.89092 (8) | 0.0170 (2) | |
O3 | 1.2139 (2) | −0.18084 (14) | 0.71186 (7) | 0.0171 (2) | |
O2 | 1.48757 (18) | −0.18785 (16) | 0.85337 (8) | 0.0206 (2) | |
N1 | 0.7557 (2) | 0.15757 (15) | 0.71789 (9) | 0.0113 (2) | |
C1 | 0.7793 (3) | 0.13486 (19) | 0.61148 (11) | 0.0144 (3) | |
H1 | 0.9219 | 0.0649 | 0.5815 | 0.017* | |
C2 | 0.5927 (3) | 0.21501 (19) | 0.54669 (11) | 0.0148 (3) | |
H2 | 0.608 | 0.2008 | 0.4729 | 0.018* | |
C5 | 0.5565 (2) | 0.25896 (18) | 0.76561 (10) | 0.0106 (2) | |
C4 | 0.3629 (2) | 0.34100 (18) | 0.70404 (10) | 0.0121 (3) | |
H4 | 0.2225 | 0.4108 | 0.7358 | 0.015* | |
C3 | 0.3814 (3) | 0.31756 (18) | 0.59413 (11) | 0.0137 (3) | |
H3 | 0.2518 | 0.3707 | 0.5522 | 0.016* | |
C6 | 0.5689 (2) | 0.27891 (19) | 0.88357 (10) | 0.0124 (3) | |
H6A | 0.6844 | 0.1755 | 0.9149 | 0.015* | |
H6B | 0.6376 | 0.4026 | 0.8875 | 0.015* | |
O5 | 0.8069 (2) | −0.35284 (16) | 0.64843 (9) | 0.0215 (2) | |
N2 | 0.3142 (2) | 0.26919 (17) | 0.94897 (9) | 0.0116 (2) | |
H9 | 0.924 (5) | −0.307 (3) | 0.6720 (18) | 0.034 (6)* | |
H10 | 0.682 (5) | −0.305 (3) | 0.6830 (19) | 0.041 (6)* | |
H7B | 0.235 (3) | 0.172 (3) | 0.9344 (14) | 0.014 (4)* | |
H7C | 0.226 (4) | 0.380 (3) | 0.9352 (15) | 0.023 (4)* | |
H7A | 0.341 (4) | 0.246 (3) | 1.0179 (17) | 0.023 (5)* | |
H8 | 0.864 (4) | 0.100 (3) | 0.7607 (15) | 0.021 (4)* |
U11 | U22 | U33 | U12 | U13 | U23 | |
S1 | 0.00975 (17) | 0.00982 (17) | 0.00827 (17) | 0.00146 (11) | −0.00037 (11) | −0.00074 (11) |
O4 | 0.0147 (4) | 0.0112 (4) | 0.0154 (4) | 0.0017 (3) | −0.0013 (3) | −0.0048 (3) |
O1 | 0.0185 (5) | 0.0109 (4) | 0.0181 (5) | 0.0016 (4) | 0.0055 (4) | 0.0017 (4) |
O3 | 0.0247 (5) | 0.0183 (5) | 0.0090 (5) | −0.0038 (4) | −0.0010 (4) | −0.0035 (4) |
O2 | 0.0097 (5) | 0.0313 (6) | 0.0186 (5) | 0.0013 (4) | −0.0033 (4) | 0.0036 (4) |
N1 | 0.0120 (5) | 0.0098 (5) | 0.0115 (5) | 0.0013 (4) | −0.0014 (4) | −0.0009 (4) |
C1 | 0.0165 (6) | 0.0132 (6) | 0.0128 (6) | −0.0004 (5) | 0.0019 (5) | −0.0033 (5) |
C2 | 0.0202 (6) | 0.0143 (6) | 0.0099 (6) | −0.0041 (5) | −0.0006 (5) | −0.0010 (5) |
C5 | 0.0120 (6) | 0.0088 (5) | 0.0108 (6) | −0.0019 (4) | 0.0005 (4) | −0.0015 (4) |
C4 | 0.0116 (6) | 0.0105 (6) | 0.0140 (6) | −0.0006 (4) | −0.0008 (5) | −0.0012 (5) |
C3 | 0.0153 (6) | 0.0119 (6) | 0.0138 (6) | −0.0039 (5) | −0.0042 (5) | 0.0019 (5) |
C6 | 0.0108 (6) | 0.0154 (6) | 0.0112 (6) | 0.0005 (4) | −0.0007 (5) | −0.0039 (5) |
O5 | 0.0183 (5) | 0.0250 (5) | 0.0229 (5) | −0.0029 (4) | −0.0016 (4) | −0.0087 (4) |
N2 | 0.0119 (5) | 0.0120 (5) | 0.0108 (5) | 0.0008 (4) | −0.0003 (4) | −0.0029 (4) |
S1—O2 | 1.4697 (10) | C5—C6 | 1.5028 (16) |
S1—O3 | 1.4715 (9) | C4—C3 | 1.3900 (18) |
S1—O1 | 1.4737 (10) | C4—H4 | 0.93 |
S1—O4 | 1.4971 (9) | C3—H3 | 0.93 |
N1—C5 | 1.3419 (16) | C6—N2 | 1.4835 (16) |
N1—C1 | 1.3443 (17) | C6—H6A | 0.97 |
N1—H8 | 0.86 (2) | C6—H6B | 0.97 |
C1—C2 | 1.3783 (19) | O5—H9 | 0.82 (2) |
C1—H1 | 0.93 | O5—H10 | 0.82 (3) |
C2—C3 | 1.3891 (19) | N2—H7B | 0.875 (18) |
C2—H2 | 0.93 | N2—H7C | 0.87 (2) |
C5—C4 | 1.3860 (17) | N2—H7A | 0.87 (2) |
O2—S1—O3 | 109.59 (6) | C5—C4—H4 | 120.5 |
O2—S1—O1 | 110.90 (6) | C3—C4—H4 | 120.5 |
O3—S1—O1 | 110.65 (6) | C2—C3—C4 | 120.26 (12) |
O2—S1—O4 | 109.13 (6) | C2—C3—H3 | 119.9 |
O3—S1—O4 | 108.33 (6) | C4—C3—H3 | 119.9 |
O1—S1—O4 | 108.17 (5) | N2—C6—C5 | 112.19 (10) |
C5—N1—C1 | 122.78 (11) | N2—C6—H6A | 109.2 |
C5—N1—H8 | 116.0 (12) | C5—C6—H6A | 109.2 |
C1—N1—H8 | 121.1 (12) | N2—C6—H6B | 109.2 |
N1—C1—C2 | 120.15 (12) | C5—C6—H6B | 109.2 |
N1—C1—H1 | 119.9 | H6A—C6—H6B | 107.9 |
C2—C1—H1 | 119.9 | H9—O5—H10 | 101 (2) |
C1—C2—C3 | 118.50 (12) | C6—N2—H7B | 110.1 (11) |
C1—C2—H2 | 120.8 | C6—N2—H7C | 109.4 (13) |
C3—C2—H2 | 120.8 | H7B—N2—H7C | 111.4 (17) |
N1—C5—C4 | 119.20 (11) | C6—N2—H7A | 106.9 (12) |
N1—C5—C6 | 115.55 (11) | H7B—N2—H7A | 108.3 (16) |
C4—C5—C6 | 125.22 (11) | H7C—N2—H7A | 110.7 (17) |
C5—C4—C3 | 119.09 (12) |
D—H···A | D—H | H···A | D···A | D—H···A |
N2—H7C···O1i | 0.87 (2) | 2.587 (19) | 2.8753 (14) | 100.3 (14) |
N2—H7A···O2ii | 0.87 (2) | 1.91 (2) | 2.7514 (15) | 161.2 (18) |
N2—H7B···O4iii | 0.875 (18) | 1.944 (18) | 2.8019 (15) | 166.4 (16) |
N2—H7C···O1iv | 0.87 (2) | 1.87 (2) | 2.7320 (15) | 168.0 (18) |
N1—H8···O4 | 0.86 (2) | 1.86 (2) | 2.7170 (15) | 173.0 (18) |
O5—H9···O3 | 0.82 (2) | 1.97 (3) | 2.7928 (15) | 173 (2) |
O5—H10···O2iii | 0.82 (3) | 2.46 (2) | 3.1822 (15) | 149 (2) |
O5—H10···O3iii | 0.82 (3) | 2.55 (3) | 3.3009 (16) | 154 (2) |
C2—H2···O3v | 0.93 | 2.39 | 3.2856 (16) | 162 |
C3—H3···O5vi | 0.93 | 2.57 | 3.2581 (17) | 131 |
C6—H6A···O4 | 0.97 | 2.4 | 3.2080 (15) | 141 |
Symmetry codes: (i) −x+1, −y, −z+2; (ii) −x+2, −y, −z+2; (iii) x−1, y, z; (iv) x−1, y+1, z; (v) −x+2, −y, −z+1; (vi) −x+1, −y, −z+1. |
Experimental details
Crystal data | |
Chemical formula | C6H10N22+·SO42−·H2O |
Mr | 224.24 |
Crystal system, space group | Triclinic, P1 |
Temperature (K) | 100 |
a, b, c (Å) | 5.2804 (1), 6.9458 (2), 12.4262 (3) |
α, β, γ (°) | 81.392 (1), 82.874 (1), 85.193 (1) |
V (Å3) | 446.15 (2) |
Z | 2 |
Radiation type | Mo Kα |
µ (mm−1) | 0.36 |
Crystal size (mm) | 0.35 × 0.34 × 0.23 |
Data collection | |
Diffractometer | Bruker APEXII CCD diffractometer |
Absorption correction | Multi-scan (SADABS; Bruker, 2008) |
Tmin, Tmax | 0.881, 0.921 |
No. of measured, independent and observed [I > 2σ(I)] reflections | 9334, 1926, 1846 |
Rint | 0.023 |
(sin θ/λ)max (Å−1) | 0.639 |
Refinement | |
R[F2 > 2σ(F2)], wR(F2), S | 0.027, 0.075, 1.07 |
No. of reflections | 1926 |
No. of parameters | 151 |
H-atom treatment | H atoms treated by a mixture of independent and constrained refinement |
Δρmax, Δρmin (e Å−3) | 0.35, −0.49 |
Computer programs: APEX2 (Bruker, 2008), SAINT-Plus (Bruker, 2008), SHELXS97 (Sheldrick, 2008), SHELXL97 (Sheldrick, 2008), DIAMOND (Brandenburg & Putz, 2005), WinGX (Farrugia, 1999).
D—H···A | D—H | H···A | D···A | D—H···A |
N2—H7C···O1i | 0.87 (2) | 2.587 (19) | 2.8753 (14) | 100.3 (14) |
N2—H7A···O2ii | 0.87 (2) | 1.91 (2) | 2.7514 (15) | 161.2 (18) |
N2—H7B···O4iii | 0.875 (18) | 1.944 (18) | 2.8019 (15) | 166.4 (16) |
N2—H7C···O1iv | 0.87 (2) | 1.87 (2) | 2.7320 (15) | 168.0 (18) |
N1—H8···O4 | 0.86 (2) | 1.86 (2) | 2.7170 (15) | 173.0 (18) |
O5—H9···O3 | 0.82 (2) | 1.97 (3) | 2.7928 (15) | 173 (2) |
O5—H10···O2iii | 0.82 (3) | 2.46 (2) | 3.1822 (15) | 149 (2) |
O5—H10···O3iii | 0.82 (3) | 2.55 (3) | 3.3009 (16) | 154 (2) |
C2—H2···O3v | 0.93 | 2.39 | 3.2856 (16) | 161.6 |
C3—H3···O5vi | 0.93 | 2.57 | 3.2581 (17) | 130.9 |
C6—H6A···O4 | 0.97 | 2.4 | 3.2080 (15) | 140.9 |
Symmetry codes: (i) −x+1, −y, −z+2; (ii) −x+2, −y, −z+2; (iii) x−1, y, z; (iv) x−1, y+1, z; (v) −x+2, −y, −z+1; (vi) −x+1, −y, −z+1. |
Acknowledgements
The authors would like to thank Alice Brink for the data collection, and the Department of Chemistry of the University of the Free State, the NRF and Sasol Ltd for funding; special thanks go to Professor Roodt and Professor Visser.
References
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2-(Ammoniomethyl)pyridinium sulfate monohydrate crystallized in the triclinic spacegroup with both nitrogen atoms protonated in the 2-aminomethylpyridine molecule. One 2-(ammoniomethyl)pyridinium cation, one sulfate anion and one solvent water molecule are present in the asymmetric unit. The bond distances compare well with those of other similar reported structures (Tooke et al., 2004; Mahjaub et al., 2005; Døssing et al., 2001; Junk et al., 2006; Yuge et al., 2008; Lemmerer et al., 2008; Khemiri et al., 2010). Also, the four sulfur-oxygen distances of 1.4694 (17) Å, 1.4718 (12) Å, 1.4741 (13) Å and 1.4965 (13) Å are well within range for sulfur-oxygen bond distances as well as the angles of 109.58 (7) °, 110.91 (7) °, 110.63 (7) °, 109.16 (8) °, 108.32 (6) ° and 108.18 (8) °. A total of eleven hydrogen bonds (N—H···O, O—H···O and C—H···O) are observed in the crystal structure. Seven of the hydrogen bonds are between the cations and sulfate anions, three are between a water molecule and sulfate anions and one is between the water molecule and the 2-(ammoniomethyl)pyridinium cation. The sulfate anions seems to surround the 2-(ammoniomethyl)pyridinium cation. The molecules pack in alternating layers parallel with the ab plane (Figure 2).