organic compounds
2-Amino-5-bromopyridinium 3-carboxy-4-hydroxybenzenesulfonate
aX-ray Crystallography Unit, School of Physics, Universiti Sains Malaysia, 11800 USM, Penang, Malaysia
*Correspondence e-mail: hkfun@usm.my
The 5H6BrN2+·C7H5O6S−, contains two independent 2-amino-5-bromopyridinium cations and two independent 3-carboxy-4-hydroxybenzenesulfonate anions. The hydroxy and carboxyl groups of the anions are involved in intramolecular O—H⋯O hydrogen bonds, which generate S(6) ring motifs. In the the ions are linked by N—H⋯O and O—H⋯O hydrogen bonds into a two-dimensional network parallel to (110). Adjacent networks are linked via C—H⋯O hydrogen bonds.
of the title salt, CRelated literature
For applications of pyridinium compounds, see: Akkurt et al. (2005); Navarro Ranninger et al. (1985); Krizanovic et al. (1993); Luque et al. (1997); Qin et al. (1999); Yip et al. (1999); Lah et al. (2002); Ren et al. (2002); Rivas et al. (2003); Luque et al. (1997); Jin et al. (2000); Albrecht et al. (2003). For related structures, see: Hemamalini & Fun (2010); Quah et al. (2010). For hydrogen-bond motifs, see: Bernstein et al. (1995). For the stability of the temperature controller used in the data collection, see: Cosier & Glazer (1986).
Experimental
Crystal data
|
Refinement
|
Data collection: APEX2 (Bruker, 2009); cell SAINT (Bruker, 2009); data reduction: SAINT; program(s) used to solve structure: SHELXTL (Sheldrick, 2008); program(s) used to refine structure: SHELXTL; molecular graphics: SHELXTL; software used to prepare material for publication: SHELXTL and PLATON (Spek, 2009).
Supporting information
https://doi.org/10.1107/S1600536810033908/ci5165sup1.cif
contains datablocks global, I. DOI:Structure factors: contains datablock I. DOI: https://doi.org/10.1107/S1600536810033908/ci5165Isup2.hkl
A hot methanol solution (20 ml) of 2-amino-5-bromopyridine (46 mg, Aldrich) and sulfosalicylic acid (54 mg, Merck) were mixed and warmed over a heating magnetic stirrer hotplate for a few minutes. The resulting solution was allowed to cool slowly at room temperature and yellow coloured crystals of the title compound appeared after a few days.
The N- and O-bound H atoms were initially located in a difference map and later allowed to ride on the parent atoms [N–H = 0.76–0.98 Å and O–H = 0.82–0.90 Å], with Uiso(H) = 1.2Ueq(N) and 1.5Ueq(O). C-bound H atoms were positioned geometrically [C–H = 0.93 Å] and refined using a riding model, with Uiso(H) = 1.2Ueq(C). In the final difference Fourier map the highest peak is 0.88 Å from atom Br1A and the deepest hole is 1.55 Å from atom C6A.
Pyridinium derivatives often exhibit antibacterial and antifungal activities (Akkurt et al., 2005). There are numerous examples of 2-amino-substituted pyridine compounds in which the 2-aminopyridines act as neutral ligands (Navarro Ranninger et al., 1985; Krizanovic et al., 1993; Luque et al., 1997; Qin et al., 1999; Yip et al., 1999; Lah et al., 2002; Ren et al., 2002; Rivas et al., 2003) or as protonated cations (Luque et al., 1997; Jin et al., 2000; Albrecht et al., 2003). We have been interested in hydrogen-bonded systems formed by 2-aminopyridines and
that generate molecular assemblies (Hemamalini & Fun, 2010; Quah et al., 2010). In continuation of our studies of pyridinium derivatives, the determination of the title compound has been undertaken.The
of the title compound consists of two crystallographically independent 2-amino-5-bromopyridinium cations (A and B) and two 3-carboxy-4-hydroxybenzenesulfonate anions (A and B) (Fig. 1). Each 2-amino-5-bromopyridinium cation is planar, with a maximum deviation of 0.015 (1) Å for atom Br1A in cation A and 0.031 (1) Å for Br1B atom in cation B. In the cations, protonation at atoms N1A and N1B lead to a slight increase in the C1A—N1A—C5A [123.9 (4)°] and C1B—N1B—C5B [123.8 (4)°] angles.In the
(Fig. 2), the sulfonate group of each 3-carboxy-4-hydroxybenzenesulfonate anion interacts with the corresponding 2-amino-5-bromopyridinium cations via a pair of N—H···O hydrogen bonds forming an R22(8) ring motif (Bernstein et al., 1995). Here, sulfonate groups mimic the role of the carboxylate groups. Furthermore, the ionic units are linked by N—H···O, O—H···O and C—H···O (Table 1) hydrogen bonds generating a three-dimensional network. The 3-carboxy-4-hydroxybenzenesulfonate anions self-assemble via O—H···O and C—H···O interactions, leading to the formation of a sheet-like structure, as shown in Fig. 3. There are intramolecular hydrogen bonds between the -OH and -COOH groups in sulfosalicylate anions, which generate S(6) ring motifs.For applications of pyridinium compounds, see: Akkurt et al. (2005); Navarro Ranninger et al. (1985); Krizanovic et al. (1993); Luque et al. (1997); Qin et al. (1999); Yip et al. (1999); Lah et al. (2002); Ren et al. (2002); Rivas et al. (2003); Luque et al. (1997); Jin et al. (2000); Albrecht et al. (2003). For related structures, see: Hemamalini & Fun (2010); Quah et al. (2010). For hydrogen-bond motifs, see: Bernstein et al. (1995). For the stability of the temperature controller used in the data collection, see: Cosier & Glazer (1986).
Data collection: APEX2 (Bruker, 2009); cell
SAINT (Bruker, 2009); data reduction: SAINT (Bruker, 2009); program(s) used to solve structure: SHELXTL (Sheldrick, 2008); program(s) used to refine structure: SHELXTL (Sheldrick, 2008); molecular graphics: SHELXTL (Sheldrick, 2008); software used to prepare material for publication: SHELXTL (Sheldrick, 2008) and PLATON (Spek, 2009).Fig. 1. The asymmetric unit of the title compound. Displacement ellipsoids are drawn at the 50% probability level. | |
Fig. 2. Hydrogen bonding patterns in compound (I). | |
Fig. 3. A view of hydrogen-bonded sheet made up of 3-carboxy-4-hydroxy benzenesulfonate anions. |
C5H6BrN2+·C7H5O6S− | Z = 4 |
Mr = 391.20 | F(000) = 784 |
Triclinic, P1 | Dx = 1.864 Mg m−3 |
Hall symbol: -P 1 | Mo Kα radiation, λ = 0.71073 Å |
a = 7.8425 (2) Å | Cell parameters from 9916 reflections |
b = 10.8682 (3) Å | θ = 3.0–31.4° |
c = 16.5457 (5) Å | µ = 3.13 mm−1 |
α = 85.207 (2)° | T = 100 K |
β = 83.290 (2)° | Plate, yellow |
γ = 86.537 (2)° | 0.26 × 0.14 × 0.09 mm |
V = 1393.87 (7) Å3 |
Bruker SMART APEXII CCD area-detector diffractometer | 9322 independent reflections |
Radiation source: fine-focus sealed tube | 7366 reflections with I > 2σ(I) |
Graphite monochromator | Rint = 0.040 |
φ and ω scans | θmax = 31.7°, θmin = 1.9° |
Absorption correction: multi-scan (SADABS; Bruker, 2009) | h = −11→11 |
Tmin = 0.498, Tmax = 0.772 | k = −15→16 |
34040 measured reflections | l = −24→24 |
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)] = 0.060 | Hydrogen site location: inferred from neighbouring sites |
wR(F2) = 0.181 | H-atom parameters constrained |
S = 1.11 | w = 1/[σ2(Fo2) + (0.0451P)2 + 14.502P] where P = (Fo2 + 2Fc2)/3 |
9322 reflections | (Δ/σ)max = 0.001 |
397 parameters | Δρmax = 1.65 e Å−3 |
0 restraints | Δρmin = −0.83 e Å−3 |
C5H6BrN2+·C7H5O6S− | γ = 86.537 (2)° |
Mr = 391.20 | V = 1393.87 (7) Å3 |
Triclinic, P1 | Z = 4 |
a = 7.8425 (2) Å | Mo Kα radiation |
b = 10.8682 (3) Å | µ = 3.13 mm−1 |
c = 16.5457 (5) Å | T = 100 K |
α = 85.207 (2)° | 0.26 × 0.14 × 0.09 mm |
β = 83.290 (2)° |
Bruker SMART APEXII CCD area-detector diffractometer | 9322 independent reflections |
Absorption correction: multi-scan (SADABS; Bruker, 2009) | 7366 reflections with I > 2σ(I) |
Tmin = 0.498, Tmax = 0.772 | Rint = 0.040 |
34040 measured reflections |
R[F2 > 2σ(F2)] = 0.060 | 0 restraints |
wR(F2) = 0.181 | H-atom parameters constrained |
S = 1.11 | w = 1/[σ2(Fo2) + (0.0451P)2 + 14.502P] where P = (Fo2 + 2Fc2)/3 |
9322 reflections | Δρmax = 1.65 e Å−3 |
397 parameters | Δρmin = −0.83 e Å−3 |
Experimental. The crystal was placed in the cold stream of an Oxford Cryosystems Cobra open-flow nitrogen cryostat (Cosier & Glazer, 1986) operating at 100.0 (1) K. |
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 | ||
Br1A | 0.34842 (7) | 1.03576 (5) | 0.09171 (3) | 0.02290 (13) | |
N1A | 0.3053 (5) | 1.0274 (4) | 0.3409 (2) | 0.0164 (7) | |
H1NA | 0.3775 | 0.9756 | 0.3767 | 0.020* | |
N2A | 0.1288 (6) | 1.1186 (4) | 0.4427 (3) | 0.0220 (9) | |
H2AB | 0.0369 | 1.1714 | 0.4514 | 0.026* | |
H2NA | 0.1650 | 1.0910 | 0.4843 | 0.026* | |
C1A | 0.1717 (6) | 1.1047 (5) | 0.3644 (3) | 0.0179 (9) | |
C2A | 0.0822 (6) | 1.1683 (5) | 0.3013 (3) | 0.0181 (9) | |
H2AA | −0.0107 | 1.2229 | 0.3149 | 0.022* | |
C3A | 0.1326 (6) | 1.1490 (5) | 0.2214 (3) | 0.0180 (9) | |
H3AA | 0.0732 | 1.1895 | 0.1806 | 0.022* | |
C4A | 0.2754 (6) | 1.0674 (5) | 0.2008 (3) | 0.0161 (8) | |
C5A | 0.3601 (6) | 1.0076 (5) | 0.2613 (3) | 0.0163 (8) | |
H5AA | 0.4544 | 0.9538 | 0.2485 | 0.020* | |
S1A | 0.15205 (14) | 0.68598 (11) | 0.03315 (6) | 0.0126 (2) | |
O1A | −0.2400 (5) | 0.9811 (3) | 0.2821 (2) | 0.0180 (7) | |
H1OA | −0.2078 | 0.9424 | 0.3229 | 0.027* | |
O2A | −0.0584 (5) | 0.8634 (4) | 0.3883 (2) | 0.0227 (8) | |
O3A | 0.1606 (5) | 0.7338 (3) | 0.3455 (2) | 0.0178 (7) | |
H2OA | 0.1921 | 0.7418 | 0.3952 | 0.027* | |
O4A | 0.2922 (4) | 0.7619 (3) | −0.0065 (2) | 0.0169 (7) | |
O5A | 0.2150 (5) | 0.5735 (3) | 0.0766 (2) | 0.0196 (7) | |
O6A | 0.0315 (5) | 0.6618 (4) | −0.0241 (2) | 0.0194 (7) | |
C6A | −0.1432 (6) | 0.9151 (4) | 0.2271 (3) | 0.0134 (8) | |
C7A | −0.1724 (6) | 0.9374 (4) | 0.1452 (3) | 0.0162 (8) | |
H7AA | −0.2528 | 0.9992 | 0.1304 | 0.019* | |
C8A | −0.0827 (6) | 0.8683 (4) | 0.0861 (3) | 0.0150 (8) | |
H8AA | −0.1028 | 0.8838 | 0.0318 | 0.018* | |
C9A | 0.0377 (6) | 0.7754 (4) | 0.1079 (3) | 0.0134 (8) | |
C10A | 0.0740 (6) | 0.7554 (4) | 0.1881 (3) | 0.0130 (8) | |
H10A | 0.1576 | 0.6954 | 0.2018 | 0.016* | |
C11A | −0.0146 (6) | 0.8250 (4) | 0.2484 (3) | 0.0129 (8) | |
C12A | 0.0249 (6) | 0.8082 (4) | 0.3339 (3) | 0.0154 (8) | |
Br1B | 0.82103 (7) | 0.51159 (5) | 0.36511 (3) | 0.02183 (12) | |
N1B | 0.7997 (5) | 0.5274 (4) | 0.1191 (2) | 0.0151 (7) | |
H1NB | 0.8554 | 0.5000 | 0.0772 | 0.018* | |
N2B | 0.6286 (6) | 0.6276 (4) | 0.0271 (2) | 0.0185 (8) | |
H2NB | 0.6942 | 0.6071 | −0.0134 | 0.022* | |
H3NB | 0.5478 | 0.6641 | 0.0167 | 0.022* | |
C1B | 0.6675 (6) | 0.6070 (4) | 0.1026 (3) | 0.0148 (8) | |
C2B | 0.5735 (6) | 0.6639 (5) | 0.1700 (3) | 0.0181 (9) | |
H2BA | 0.4806 | 0.7187 | 0.1612 | 0.022* | |
C3B | 0.6179 (7) | 0.6392 (5) | 0.2468 (3) | 0.0190 (9) | |
H3BA | 0.5569 | 0.6775 | 0.2903 | 0.023* | |
C4B | 0.7588 (6) | 0.5541 (5) | 0.2600 (3) | 0.0157 (8) | |
C5B | 0.8482 (6) | 0.5005 (4) | 0.1952 (3) | 0.0151 (8) | |
H5BA | 0.9418 | 0.4459 | 0.2030 | 0.018* | |
S1B | 0.34815 (15) | 0.81374 (11) | 0.51288 (7) | 0.0149 (2) | |
O1B | 0.7530 (5) | 0.5267 (3) | 0.7495 (2) | 0.0182 (7) | |
H1OB | 0.7144 | 0.5349 | 0.7967 | 0.027* | |
O2B | 0.5619 (5) | 0.6350 (4) | 0.8632 (2) | 0.0196 (7) | |
O3B | 0.3442 (5) | 0.7652 (3) | 0.8315 (2) | 0.0176 (7) | |
H2OB | 0.3280 | 0.7778 | 0.8844 | 0.026* | |
O4B | 0.4611 (5) | 0.8372 (4) | 0.4372 (2) | 0.0239 (8) | |
O5B | 0.2794 (6) | 0.9255 (4) | 0.5500 (2) | 0.0269 (9) | |
O6B | 0.2102 (5) | 0.7328 (4) | 0.5012 (2) | 0.0201 (7) | |
C6B | 0.6577 (6) | 0.5938 (4) | 0.6973 (3) | 0.0133 (8) | |
C7B | 0.6953 (7) | 0.5781 (5) | 0.6139 (3) | 0.0183 (9) | |
H7BA | 0.7826 | 0.5215 | 0.5963 | 0.022* | |
C8B | 0.6037 (6) | 0.6462 (5) | 0.5575 (3) | 0.0186 (9) | |
H8BA | 0.6293 | 0.6353 | 0.5021 | 0.022* | |
C9B | 0.4723 (6) | 0.7315 (4) | 0.5838 (3) | 0.0144 (8) | |
C10B | 0.4318 (6) | 0.7471 (4) | 0.6658 (3) | 0.0131 (8) | |
H10B | 0.3430 | 0.8031 | 0.6828 | 0.016* | |
C11B | 0.5235 (6) | 0.6792 (4) | 0.7235 (3) | 0.0121 (7) | |
C12B | 0.4794 (6) | 0.6907 (4) | 0.8116 (3) | 0.0140 (8) |
U11 | U22 | U33 | U12 | U13 | U23 | |
Br1A | 0.0219 (2) | 0.0316 (3) | 0.0159 (2) | −0.0003 (2) | −0.00412 (17) | −0.00410 (18) |
N1A | 0.0165 (18) | 0.0151 (19) | 0.0166 (17) | 0.0003 (15) | −0.0026 (14) | 0.0048 (14) |
N2A | 0.023 (2) | 0.025 (2) | 0.0170 (19) | 0.0012 (17) | 0.0003 (16) | 0.0000 (16) |
C1A | 0.018 (2) | 0.018 (2) | 0.017 (2) | −0.0045 (17) | 0.0005 (16) | 0.0005 (17) |
C2A | 0.014 (2) | 0.019 (2) | 0.021 (2) | 0.0019 (17) | −0.0016 (16) | 0.0014 (17) |
C3A | 0.016 (2) | 0.018 (2) | 0.020 (2) | 0.0010 (17) | −0.0052 (17) | 0.0013 (17) |
C4A | 0.015 (2) | 0.018 (2) | 0.0162 (19) | −0.0050 (17) | −0.0020 (15) | 0.0011 (16) |
C5A | 0.0122 (19) | 0.017 (2) | 0.019 (2) | 0.0010 (16) | −0.0019 (16) | 0.0007 (16) |
S1A | 0.0121 (5) | 0.0141 (5) | 0.0114 (4) | 0.0016 (4) | −0.0007 (3) | −0.0027 (4) |
O1A | 0.0182 (16) | 0.0205 (18) | 0.0152 (15) | 0.0078 (13) | −0.0030 (12) | −0.0050 (13) |
O2A | 0.0253 (19) | 0.028 (2) | 0.0148 (15) | 0.0126 (15) | −0.0066 (13) | −0.0063 (14) |
O3A | 0.0188 (17) | 0.0184 (17) | 0.0166 (15) | 0.0095 (13) | −0.0067 (12) | −0.0042 (12) |
O4A | 0.0147 (15) | 0.0189 (17) | 0.0164 (15) | −0.0015 (13) | 0.0017 (12) | −0.0024 (12) |
O5A | 0.0242 (18) | 0.0155 (17) | 0.0181 (16) | 0.0067 (14) | −0.0017 (13) | −0.0009 (12) |
O6A | 0.0183 (17) | 0.0240 (19) | 0.0175 (15) | −0.0015 (14) | −0.0032 (13) | −0.0093 (13) |
C6A | 0.0134 (19) | 0.013 (2) | 0.0137 (18) | 0.0030 (15) | −0.0025 (15) | −0.0029 (15) |
C7A | 0.019 (2) | 0.013 (2) | 0.0166 (19) | 0.0025 (17) | −0.0040 (16) | −0.0015 (15) |
C8A | 0.016 (2) | 0.016 (2) | 0.0127 (18) | 0.0030 (16) | −0.0035 (15) | −0.0017 (15) |
C9A | 0.016 (2) | 0.0117 (19) | 0.0124 (18) | −0.0016 (15) | 0.0025 (15) | −0.0038 (14) |
C10A | 0.0132 (19) | 0.012 (2) | 0.0141 (18) | −0.0020 (15) | −0.0015 (15) | −0.0038 (15) |
C11A | 0.0135 (19) | 0.014 (2) | 0.0121 (17) | 0.0013 (15) | −0.0034 (14) | −0.0021 (14) |
C12A | 0.018 (2) | 0.014 (2) | 0.0157 (19) | 0.0013 (16) | −0.0043 (16) | −0.0027 (15) |
Br1B | 0.0238 (3) | 0.0286 (3) | 0.0131 (2) | −0.0010 (2) | −0.00254 (17) | −0.00132 (17) |
N1B | 0.0132 (17) | 0.019 (2) | 0.0130 (16) | −0.0017 (14) | 0.0005 (13) | −0.0033 (14) |
N2B | 0.0172 (19) | 0.023 (2) | 0.0154 (17) | 0.0027 (16) | −0.0034 (14) | −0.0017 (15) |
C1B | 0.014 (2) | 0.015 (2) | 0.0155 (19) | −0.0031 (16) | 0.0002 (15) | −0.0008 (15) |
C2B | 0.017 (2) | 0.016 (2) | 0.022 (2) | 0.0019 (17) | −0.0020 (17) | −0.0046 (17) |
C3B | 0.022 (2) | 0.017 (2) | 0.017 (2) | −0.0029 (18) | 0.0031 (17) | −0.0045 (17) |
C4B | 0.016 (2) | 0.019 (2) | 0.0124 (18) | −0.0048 (17) | −0.0014 (15) | −0.0009 (15) |
C5B | 0.016 (2) | 0.012 (2) | 0.017 (2) | −0.0002 (16) | −0.0024 (16) | −0.0018 (15) |
S1B | 0.0165 (5) | 0.0162 (5) | 0.0123 (4) | 0.0028 (4) | −0.0046 (4) | −0.0005 (4) |
O1B | 0.0190 (17) | 0.0208 (18) | 0.0139 (14) | 0.0071 (13) | −0.0032 (12) | −0.0002 (12) |
O2B | 0.0237 (18) | 0.0205 (18) | 0.0136 (15) | 0.0073 (14) | −0.0040 (13) | 0.0006 (12) |
O3B | 0.0207 (17) | 0.0184 (17) | 0.0126 (14) | 0.0039 (13) | −0.0008 (12) | 0.0001 (12) |
O4B | 0.0250 (19) | 0.029 (2) | 0.0166 (16) | 0.0023 (16) | −0.0023 (14) | 0.0037 (14) |
O5B | 0.038 (2) | 0.0215 (19) | 0.0210 (17) | 0.0152 (17) | −0.0109 (16) | −0.0052 (14) |
O6B | 0.0193 (17) | 0.0232 (19) | 0.0186 (16) | −0.0028 (14) | −0.0076 (13) | 0.0011 (13) |
C6B | 0.0105 (18) | 0.015 (2) | 0.0144 (18) | 0.0015 (15) | −0.0022 (14) | −0.0006 (15) |
C7B | 0.018 (2) | 0.020 (2) | 0.016 (2) | 0.0066 (18) | −0.0025 (16) | −0.0034 (17) |
C8B | 0.018 (2) | 0.022 (2) | 0.015 (2) | 0.0070 (18) | −0.0050 (16) | −0.0044 (17) |
C9B | 0.015 (2) | 0.016 (2) | 0.0130 (18) | 0.0021 (16) | −0.0048 (15) | −0.0020 (15) |
C10B | 0.0128 (19) | 0.013 (2) | 0.0142 (18) | 0.0003 (15) | −0.0031 (14) | −0.0014 (15) |
C11B | 0.0129 (19) | 0.0116 (19) | 0.0121 (17) | 0.0011 (15) | −0.0030 (14) | −0.0021 (14) |
C12B | 0.017 (2) | 0.013 (2) | 0.0124 (18) | −0.0014 (16) | −0.0020 (15) | 0.0005 (14) |
Br1A—C4A | 1.883 (5) | Br1B—C4B | 1.874 (5) |
N1A—C1A | 1.344 (7) | N1B—C1B | 1.348 (6) |
N1A—C5A | 1.367 (6) | N1B—C5B | 1.361 (6) |
N1A—H1NA | 0.98 | N1B—H1NB | 0.84 |
N2A—C1A | 1.320 (6) | N2B—C1B | 1.318 (6) |
N2A—H2AB | 0.90 | N2B—H2NB | 0.83 |
N2A—H2NA | 0.80 | N2B—H3NB | 0.76 |
C1A—C2A | 1.433 (7) | C1B—C2B | 1.427 (6) |
C2A—C3A | 1.365 (7) | C2B—C3B | 1.358 (7) |
C2A—H2AA | 0.93 | C2B—H2BA | 0.93 |
C3A—C4A | 1.413 (7) | C3B—C4B | 1.422 (7) |
C3A—H3AA | 0.93 | C3B—H3BA | 0.93 |
C4A—C5A | 1.364 (7) | C4B—C5B | 1.364 (6) |
C5A—H5AA | 0.93 | C5B—H5BA | 0.93 |
S1A—O5A | 1.455 (4) | S1B—O5B | 1.453 (4) |
S1A—O6A | 1.464 (4) | S1B—O4B | 1.461 (4) |
S1A—O4A | 1.473 (4) | S1B—O6B | 1.475 (4) |
S1A—C9A | 1.765 (4) | S1B—C9B | 1.764 (5) |
O1A—C6A | 1.343 (5) | O1B—C6B | 1.347 (6) |
O1A—H1OA | 0.82 | O1B—H1OB | 0.82 |
O2A—C12A | 1.225 (6) | O2B—C12B | 1.230 (6) |
O3A—C12A | 1.319 (6) | O3B—C12B | 1.322 (6) |
O3A—H2OA | 0.90 | O3B—H2OB | 0.89 |
C6A—C7A | 1.399 (6) | C6B—C7B | 1.400 (6) |
C6A—C11A | 1.417 (6) | C6B—C11B | 1.414 (6) |
C7A—C8A | 1.384 (6) | C7B—C8B | 1.384 (7) |
C7A—H7AA | 0.93 | C7B—H7BA | 0.93 |
C8A—C9A | 1.395 (7) | C8B—C9B | 1.399 (7) |
C8A—H8AA | 0.93 | C8B—H8BA | 0.93 |
C9A—C10A | 1.386 (6) | C9B—C10B | 1.379 (6) |
C10A—C11A | 1.397 (6) | C10B—C11B | 1.397 (6) |
C10A—H10A | 0.93 | C10B—H10B | 0.93 |
C11A—C12A | 1.478 (6) | C11B—C12B | 1.472 (6) |
C1A—N1A—C5A | 123.9 (4) | C1B—N1B—C5B | 123.8 (4) |
C1A—N1A—H1NA | 126.9 | C1B—N1B—H1NB | 113.6 |
C5A—N1A—H1NA | 109.2 | C5B—N1B—H1NB | 122.5 |
C1A—N2A—H2AB | 112.1 | C1B—N2B—H2NB | 123.2 |
C1A—N2A—H2NA | 135.2 | C1B—N2B—H3NB | 122.4 |
H2AB—N2A—H2NA | 112.7 | H2NB—N2B—H3NB | 114.2 |
N2A—C1A—N1A | 119.7 (5) | N2B—C1B—N1B | 119.9 (4) |
N2A—C1A—C2A | 123.3 (5) | N2B—C1B—C2B | 123.1 (5) |
N1A—C1A—C2A | 117.1 (4) | N1B—C1B—C2B | 117.0 (4) |
C3A—C2A—C1A | 120.3 (5) | C3B—C2B—C1B | 121.0 (5) |
C3A—C2A—H2AA | 119.9 | C3B—C2B—H2BA | 119.5 |
C1A—C2A—H2AA | 119.9 | C1B—C2B—H2BA | 119.5 |
C2A—C3A—C4A | 119.8 (5) | C2B—C3B—C4B | 119.2 (4) |
C2A—C3A—H3AA | 120.1 | C2B—C3B—H3BA | 120.4 |
C4A—C3A—H3AA | 120.1 | C4B—C3B—H3BA | 120.4 |
C5A—C4A—C3A | 119.5 (4) | C5B—C4B—C3B | 119.4 (4) |
C5A—C4A—Br1A | 118.9 (4) | C5B—C4B—Br1B | 119.3 (4) |
C3A—C4A—Br1A | 121.5 (4) | C3B—C4B—Br1B | 121.3 (3) |
C4A—C5A—N1A | 119.5 (5) | N1B—C5B—C4B | 119.7 (5) |
C4A—C5A—H5AA | 120.3 | N1B—C5B—H5BA | 120.2 |
N1A—C5A—H5AA | 120.3 | C4B—C5B—H5BA | 120.2 |
O5A—S1A—O6A | 112.6 (2) | O5B—S1B—O4B | 113.7 (3) |
O5A—S1A—O4A | 112.6 (2) | O5B—S1B—O6B | 111.5 (3) |
O6A—S1A—O4A | 111.7 (2) | O4B—S1B—O6B | 111.1 (2) |
O5A—S1A—C9A | 106.2 (2) | O5B—S1B—C9B | 106.3 (2) |
O6A—S1A—C9A | 107.2 (2) | O4B—S1B—C9B | 107.4 (2) |
O4A—S1A—C9A | 106.0 (2) | O6B—S1B—C9B | 106.3 (2) |
C6A—O1A—H1OA | 96.5 | C6B—O1B—H1OB | 111.2 |
C12A—O3A—H2OA | 109.7 | C12B—O3B—H2OB | 113.5 |
O1A—C6A—C7A | 117.7 (4) | O1B—C6B—C7B | 118.0 (4) |
O1A—C6A—C11A | 123.0 (4) | O1B—C6B—C11B | 122.7 (4) |
C7A—C6A—C11A | 119.3 (4) | C7B—C6B—C11B | 119.3 (4) |
C8A—C7A—C6A | 120.5 (4) | C8B—C7B—C6B | 120.5 (4) |
C8A—C7A—H7AA | 119.7 | C8B—C7B—H7BA | 119.7 |
C6A—C7A—H7AA | 119.7 | C6B—C7B—H7BA | 119.7 |
C7A—C8A—C9A | 120.0 (4) | C7B—C8B—C9B | 119.9 (4) |
C7A—C8A—H8AA | 120.0 | C7B—C8B—H8BA | 120.1 |
C9A—C8A—H8AA | 120.0 | C9B—C8B—H8BA | 120.1 |
C10A—C9A—C8A | 120.4 (4) | C10B—C9B—C8B | 120.5 (4) |
C10A—C9A—S1A | 119.1 (4) | C10B—C9B—S1B | 119.2 (4) |
C8A—C9A—S1A | 120.5 (3) | C8B—C9B—S1B | 120.2 (3) |
C9A—C10A—C11A | 120.2 (4) | C9B—C10B—C11B | 120.3 (4) |
C9A—C10A—H10A | 119.9 | C9B—C10B—H10B | 119.9 |
C11A—C10A—H10A | 119.9 | C11B—C10B—H10B | 119.9 |
C10A—C11A—C6A | 119.5 (4) | C10B—C11B—C6B | 119.6 (4) |
C10A—C11A—C12A | 121.4 (4) | C10B—C11B—C12B | 121.5 (4) |
C6A—C11A—C12A | 119.1 (4) | C6B—C11B—C12B | 118.9 (4) |
O2A—C12A—O3A | 123.4 (4) | O2B—C12B—O3B | 122.1 (4) |
O2A—C12A—C11A | 122.1 (4) | O2B—C12B—C11B | 122.6 (4) |
O3A—C12A—C11A | 114.4 (4) | O3B—C12B—C11B | 115.3 (4) |
C5A—N1A—C1A—N2A | −179.5 (5) | C5B—N1B—C1B—N2B | −179.8 (4) |
C5A—N1A—C1A—C2A | 0.6 (7) | C5B—N1B—C1B—C2B | −0.9 (7) |
N2A—C1A—C2A—C3A | −179.5 (5) | N2B—C1B—C2B—C3B | 179.6 (5) |
N1A—C1A—C2A—C3A | 0.3 (7) | N1B—C1B—C2B—C3B | 0.7 (7) |
C1A—C2A—C3A—C4A | −0.9 (7) | C1B—C2B—C3B—C4B | −0.8 (7) |
C2A—C3A—C4A—C5A | 0.7 (7) | C2B—C3B—C4B—C5B | 1.0 (7) |
C2A—C3A—C4A—Br1A | 179.1 (4) | C2B—C3B—C4B—Br1B | −177.6 (4) |
C3A—C4A—C5A—N1A | 0.2 (7) | C1B—N1B—C5B—C4B | 1.1 (7) |
Br1A—C4A—C5A—N1A | −178.3 (3) | C3B—C4B—C5B—N1B | −1.1 (7) |
C1A—N1A—C5A—C4A | −0.9 (7) | Br1B—C4B—C5B—N1B | 177.5 (3) |
O1A—C6A—C7A—C8A | −176.8 (4) | O1B—C6B—C7B—C8B | −178.8 (5) |
C11A—C6A—C7A—C8A | 3.1 (7) | C11B—C6B—C7B—C8B | 0.6 (7) |
C6A—C7A—C8A—C9A | 0.1 (7) | C6B—C7B—C8B—C9B | 0.0 (8) |
C7A—C8A—C9A—C10A | −2.9 (7) | C7B—C8B—C9B—C10B | −0.9 (8) |
C7A—C8A—C9A—S1A | 179.6 (4) | C7B—C8B—C9B—S1B | −177.1 (4) |
O5A—S1A—C9A—C10A | 22.9 (4) | O5B—S1B—C9B—C10B | 27.2 (5) |
O6A—S1A—C9A—C10A | 143.5 (4) | O4B—S1B—C9B—C10B | 149.2 (4) |
O4A—S1A—C9A—C10A | −97.1 (4) | O6B—S1B—C9B—C10B | −91.7 (4) |
O5A—S1A—C9A—C8A | −159.7 (4) | O5B—S1B—C9B—C8B | −156.5 (4) |
O6A—S1A—C9A—C8A | −39.1 (4) | O4B—S1B—C9B—C8B | −34.5 (5) |
O4A—S1A—C9A—C8A | 80.4 (4) | O6B—S1B—C9B—C8B | 84.6 (4) |
C8A—C9A—C10A—C11A | 2.5 (7) | C8B—C9B—C10B—C11B | 1.0 (7) |
S1A—C9A—C10A—C11A | 179.9 (3) | S1B—C9B—C10B—C11B | 177.3 (3) |
C9A—C10A—C11A—C6A | 0.8 (7) | C9B—C10B—C11B—C6B | −0.4 (7) |
C9A—C10A—C11A—C12A | −178.2 (4) | C9B—C10B—C11B—C12B | −177.9 (4) |
O1A—C6A—C11A—C10A | 176.4 (4) | O1B—C6B—C11B—C10B | 178.9 (4) |
C7A—C6A—C11A—C10A | −3.5 (7) | C7B—C6B—C11B—C10B | −0.5 (7) |
O1A—C6A—C11A—C12A | −4.6 (7) | O1B—C6B—C11B—C12B | −3.5 (7) |
C7A—C6A—C11A—C12A | 175.5 (4) | C7B—C6B—C11B—C12B | 177.1 (4) |
C10A—C11A—C12A—O2A | −175.6 (5) | C10B—C11B—C12B—O2B | −177.5 (5) |
C6A—C11A—C12A—O2A | 5.4 (7) | C6B—C11B—C12B—O2B | 5.0 (7) |
C10A—C11A—C12A—O3A | 7.2 (7) | C10B—C11B—C12B—O3B | 2.6 (6) |
C6A—C11A—C12A—O3A | −171.8 (4) | C6B—C11B—C12B—O3B | −175.0 (4) |
D—H···A | D—H | H···A | D···A | D—H···A |
N1A—H1NA···O4B | 0.99 | 1.86 | 2.811 (6) | 160 |
N2A—H2AB···O6Bi | 0.90 | 2.23 | 3.113 (6) | 166 |
N2A—H2NA···O5B | 0.80 | 2.22 | 2.919 (6) | 146 |
N2A—H2NA···O2Ai | 0.80 | 2.26 | 2.807 (6) | 126 |
O1A—H1OA···O2A | 0.82 | 1.82 | 2.596 (5) | 158 |
O3A—H2OA···O4B | 0.90 | 2.60 | 3.250 (5) | 130 |
O3A—H2OA···O6B | 0.90 | 1.77 | 2.649 (5) | 165 |
N1B—H1NB···O6Aii | 0.84 | 2.13 | 2.859 (6) | 145 |
N2B—H2NB···O5Aii | 0.83 | 2.34 | 3.006 (5) | 138 |
N2B—H3NB···O4A | 0.76 | 2.27 | 3.024 (6) | 175 |
O1B—H1OB···O2B | 0.81 | 1.89 | 2.582 (5) | 143 |
O1B—H1OB···O5Aiii | 0.81 | 2.42 | 3.023 (5) | 131 |
O3B—H2OB···O4Aiv | 0.89 | 1.79 | 2.661 (5) | 166 |
C5A—H5AA···O1Av | 0.93 | 2.56 | 3.188 (6) | 125 |
C10A—H10A···O1Biii | 0.93 | 2.56 | 3.406 (6) | 151 |
C10B—H10B···O1Ai | 0.93 | 2.53 | 3.364 (6) | 150 |
Symmetry codes: (i) −x, −y+2, −z+1; (ii) −x+1, −y+1, −z; (iii) −x+1, −y+1, −z+1; (iv) x, y, z+1; (v) x+1, y, z. |
Experimental details
Crystal data | |
Chemical formula | C5H6BrN2+·C7H5O6S− |
Mr | 391.20 |
Crystal system, space group | Triclinic, P1 |
Temperature (K) | 100 |
a, b, c (Å) | 7.8425 (2), 10.8682 (3), 16.5457 (5) |
α, β, γ (°) | 85.207 (2), 83.290 (2), 86.537 (2) |
V (Å3) | 1393.87 (7) |
Z | 4 |
Radiation type | Mo Kα |
µ (mm−1) | 3.13 |
Crystal size (mm) | 0.26 × 0.14 × 0.09 |
Data collection | |
Diffractometer | Bruker SMART APEXII CCD area-detector diffractometer |
Absorption correction | Multi-scan (SADABS; Bruker, 2009) |
Tmin, Tmax | 0.498, 0.772 |
No. of measured, independent and observed [I > 2σ(I)] reflections | 34040, 9322, 7366 |
Rint | 0.040 |
(sin θ/λ)max (Å−1) | 0.739 |
Refinement | |
R[F2 > 2σ(F2)], wR(F2), S | 0.060, 0.181, 1.11 |
No. of reflections | 9322 |
No. of parameters | 397 |
H-atom treatment | H-atom parameters constrained |
w = 1/[σ2(Fo2) + (0.0451P)2 + 14.502P] where P = (Fo2 + 2Fc2)/3 | |
Δρmax, Δρmin (e Å−3) | 1.65, −0.83 |
Computer programs: APEX2 (Bruker, 2009), SAINT (Bruker, 2009), SHELXTL (Sheldrick, 2008) and PLATON (Spek, 2009).
D—H···A | D—H | H···A | D···A | D—H···A |
N1A—H1NA···O4B | 0.99 | 1.86 | 2.811 (6) | 160 |
N2A—H2AB···O6Bi | 0.90 | 2.23 | 3.113 (6) | 166 |
N2A—H2NA···O5B | 0.80 | 2.22 | 2.919 (6) | 146 |
N2A—H2NA···O2Ai | 0.80 | 2.26 | 2.807 (6) | 126 |
O1A—H1OA···O2A | 0.82 | 1.82 | 2.596 (5) | 158 |
O3A—H2OA···O4B | 0.90 | 2.60 | 3.250 (5) | 130 |
O3A—H2OA···O6B | 0.90 | 1.77 | 2.649 (5) | 165 |
N1B—H1NB···O6Aii | 0.84 | 2.13 | 2.859 (6) | 145 |
N2B—H2NB···O5Aii | 0.83 | 2.34 | 3.006 (5) | 138 |
N2B—H3NB···O4A | 0.76 | 2.27 | 3.024 (6) | 175 |
O1B—H1OB···O2B | 0.81 | 1.89 | 2.582 (5) | 143 |
O1B—H1OB···O5Aiii | 0.81 | 2.42 | 3.023 (5) | 131 |
O3B—H2OB···O4Aiv | 0.89 | 1.79 | 2.661 (5) | 166 |
C5A—H5AA···O1Av | 0.93 | 2.56 | 3.188 (6) | 125 |
C10A—H10A···O1Biii | 0.93 | 2.56 | 3.406 (6) | 151 |
C10B—H10B···O1Ai | 0.93 | 2.53 | 3.364 (6) | 150 |
Symmetry codes: (i) −x, −y+2, −z+1; (ii) −x+1, −y+1, −z; (iii) −x+1, −y+1, −z+1; (iv) x, y, z+1; (v) x+1, y, z. |
Footnotes
‡Thomson Reuters ResearcherID: A-3561-2009.
Acknowledgements
MH and HKF thank the Malaysian Government and Universiti Sains Malaysia for the Research University Grant (No. 1001/PFIZIK/811160). MH also thanks Universiti Sains Malaysia for a post-doctoral research fellowship.
References
Akkurt, M., Karaca, S., Jarrahpour, A. A., Zarei, M. & Büyükgüngör, O. (2005). Acta Cryst. E61, o776–o778. Web of Science CSD CrossRef CAS IUCr Journals Google Scholar
Albrecht, A. S., Landee, C. P. & Turnbull, M. M. (2003). J. Chem. Crystallogr. 33, 269–276. Web of Science CSD CrossRef CAS Google Scholar
Bernstein, J., Davis, R. E., Shimoni, L. & Chang, N.-L. (1995). Angew. Chem. Int. Ed. Engl. 34, 1555–1573. CrossRef CAS Web of Science Google Scholar
Bruker (2009). APEX2, SAINT and SADABS. Bruker AXS Inc., Madison, Wisconsin, USA. Google Scholar
Cosier, J. & Glazer, A. M. (1986). J. Appl. Cryst. 19, 105–107. CrossRef CAS Web of Science IUCr Journals Google Scholar
Hemamalini, M. & Fun, H.-K. (2010). Acta Cryst. E66, o663. Web of Science CSD CrossRef IUCr Journals Google Scholar
Jin, Z. M., Pan, Y. J., Liu, J. G. & Xu, D. J. (2000). J. Chem. Crystallogr. 30, 195–198. Web of Science CSD CrossRef CAS Google Scholar
Krizanovic, O., Sabat, M., Beyerle-Pfnur, R. & Lippert, B. (1993). J. Am. Chem. Soc. 115, 5538–5548. CSD CrossRef CAS Web of Science Google Scholar
Lah, N., Segedin, P. & Leban, I. (2002). Struct. Chem. 13, 357–360. Web of Science CSD CrossRef CAS Google Scholar
Luque, A., Sertucha, J., Lezama, L., Rojo, T. & Román, P. (1997). J. Chem. Soc. Dalton Trans. pp. 847–854. CSD CrossRef Web of Science Google Scholar
Navarro Ranninger, M.-C., Martínez-Carrera, S. & García-Blanco, S. (1985). Acta Cryst. C41, 21–22. CSD CrossRef CAS IUCr Journals Google Scholar
Qin, J. G., Su, N. B., Dai, C. Y., Yang, C. L., Liu, D. Y., Day, M. W., Wu, B. C. & Chen, C. T. (1999). Polyhedron, 18, 3461–3464. Web of Science CSD CrossRef CAS Google Scholar
Quah, C. K., Hemamalini, M. & Fun, H.-K. (2010). Acta Cryst. E66, o1935–o1936. Web of Science CSD CrossRef IUCr Journals Google Scholar
Ren, P., Su, N. B., Qin, J. G., Day, M. W. & Chen, C. T. (2002). Jiegou Huaxue, 21, 38–41. Google Scholar
Rivas, J. C. M., Salvagni, E., Rosales, R. T. M. & Parsons, S. (2003). Dalton Trans. pp. 3339–3349. Web of Science CSD CrossRef Google Scholar
Sheldrick, G. M. (2008). Acta Cryst. A64, 112–122. Web of Science CrossRef CAS IUCr Journals Google Scholar
Spek, A. L. (2009). Acta Cryst. D65, 148–155. Web of Science CrossRef CAS IUCr Journals Google Scholar
Yip, J. H. K., Feng, R. & Vittal, J. J. (1999). Inorg. Chem. 38, 3586–3589. Web of Science CSD CrossRef PubMed CAS 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.
Pyridinium derivatives often exhibit antibacterial and antifungal activities (Akkurt et al., 2005). There are numerous examples of 2-amino-substituted pyridine compounds in which the 2-aminopyridines act as neutral ligands (Navarro Ranninger et al., 1985; Krizanovic et al., 1993; Luque et al., 1997; Qin et al., 1999; Yip et al., 1999; Lah et al., 2002; Ren et al., 2002; Rivas et al., 2003) or as protonated cations (Luque et al., 1997; Jin et al., 2000; Albrecht et al., 2003). We have been interested in hydrogen-bonded systems formed by 2-aminopyridines and carboxylic acids that generate molecular assemblies (Hemamalini & Fun, 2010; Quah et al., 2010). In continuation of our studies of pyridinium derivatives, the crystal structure determination of the title compound has been undertaken.
The asymmetric unit of the title compound consists of two crystallographically independent 2-amino-5-bromopyridinium cations (A and B) and two 3-carboxy-4-hydroxybenzenesulfonate anions (A and B) (Fig. 1). Each 2-amino-5-bromopyridinium cation is planar, with a maximum deviation of 0.015 (1) Å for atom Br1A in cation A and 0.031 (1) Å for Br1B atom in cation B. In the cations, protonation at atoms N1A and N1B lead to a slight increase in the C1A—N1A—C5A [123.9 (4)°] and C1B—N1B—C5B [123.8 (4)°] angles.
In the crystal structure (Fig. 2), the sulfonate group of each 3-carboxy-4-hydroxybenzenesulfonate anion interacts with the corresponding 2-amino-5-bromopyridinium cations via a pair of N—H···O hydrogen bonds forming an R22(8) ring motif (Bernstein et al., 1995). Here, sulfonate groups mimic the role of the carboxylate groups. Furthermore, the ionic units are linked by N—H···O, O—H···O and C—H···O (Table 1) hydrogen bonds generating a three-dimensional network. The 3-carboxy-4-hydroxybenzenesulfonate anions self-assemble via O—H···O and C—H···O interactions, leading to the formation of a sheet-like structure, as shown in Fig. 3. There are intramolecular hydrogen bonds between the -OH and -COOH groups in sulfosalicylate anions, which generate S(6) ring motifs.