organic compounds
Benzene-1,3,5-tricarboxylic acid–pyridinium-2-olate (1/3)
aFacultad de Ingenieria Mochis, Universidad Autónoma de Sinaloa, Fuente Poseidón y Prol. A. Flores S/N, CP 8122, C.U. Los Mochis, Sinaloa, México, and bCentro de Investigaciones Quimicas, Universidad Autónoma del Estado de Morelos, Av. Universidad 1001, CP 62210, Cuernavaca, Morelos, México
*Correspondence e-mail: cenriqueza@yahoo.com.mx
The 9H6O6·3C5H5NO, contains one benzene-1,3,5-tricarboxylic acid molecule (BTA) and three pyridin-2-ol molecules each present in the zwitterion form. In the crystal, these entities are linked through O—H⋯O− and N+—H⋯O− hydrogen bonds, forming sheets parallel to (10-1). These layers contain macrocyclic rings of composition [BTA]2[pyol]6 and with graph-set notation R68(44), which are stacked along c through π–π interactions [inter-centroid distances = 3.536 (2)–3.948 (3) Å]. They are interconnected by N+—H⋯O− hydrogen-bonded chains of pyridin-2-ol molecules running parallel to c, forming a three-dimensional network. There are also C—H⋯O hydrogen bonds present which reinforce the three-dimensional structure.
of the title compound, CCCDC reference: 991203
Related literature
For reports on supramolecular crystal engineering and potential applications of co-crystals, see: Desiraju (1995); Karki et al. (2009); Aakeröy et al. (2010); Yan et al. (2012); Li et al. (2014); Ebenezer & Muthiah (2012. For background to related crystal structures, see: Bhogala et al. (2005); Shattock et al. (2008); Yu (2012).
Experimental
Crystal data
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Data collection: SMART (Bruker, 2001); cell SAINT-Plus-NT (Bruker 2001); data reduction: SAINT-Plus-NT; 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, 2012) and Mercury (Macrae et al., 2008); software used to prepare material for publication: SHELXTL (Sheldrick, 2008) and publCIF (Westrip, 2010).
Supporting information
CCDC reference: 991203
10.1107/S1600536814005534/su2712sup1.cif
contains datablocks I, New_Global_Publ_Block. DOI:Structure factors: contains datablock I. DOI: 10.1107/S1600536814005534/su2712Isup2.hkl
Supporting information file. DOI: 10.1107/S1600536814005534/su2712Isup3.cml
A solution of 4-hydroxypyridine (0.050 g, 0.525 mmol) and benzene-1,3,5-tricarboxylic acid (0.055 g, 0.262 mmol) in a solvent mixture of THF and DMF (7.5 ml, 2:1, v/v) was stirred for 30 min at room temperature, giving a clear transparent solution. Upon slow evaporation of the solvents during approximately 30 days, yellow crystals were obtained. Spectroscopic data for the title compound are available in the archived CIF.
The C-bound H atoms were positioned geometrically and treated as riding atoms: C—H = 0.95 Å with Uiso(H) = 1.2Ueq(C). The H atoms bonded to O and N were initially located in a difference Fourier map. They were refined with an X—H distance restraint of 0.840 (1) Å with Uiso(H) = 1.5Ueq(O,N).
Data collection: SMART (Bruker, 2001); cell
SAINT-Plus-NT (Bruker 2001); data reduction: SAINT-Plus-NT (Bruker 2001); 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, 2012) and Mercury (Macrae et al., 2008); software used to prepare material for publication: SHELXTL (Sheldrick, 2008) and publCIF (Westrip, 2010).Fig. 1. The molecular structure of the title compound, with atom labelling. The displacement ellipsoids are drawn at the 50% probability level. | |
Fig. 2. A view along the a axis of the crystal packing of the title compound, showing the two-dimensional hydrogen bonded sheets parallel to (10-1) (see Table 1 for details). | |
Fig. 3. A view along the a axis of the crystal packing of the title compound, showing the three-dimensional hydrogen bonded network formed through O—H···-O and N+—H···-O hydrogen bonds (see Table 1 for details; H atoms not involved in hydrogen bonding have been omitted for clarity). |
C9H6O6·3C5H5NO | F(000) = 1032 |
Mr = 495.44 | Dx = 1.484 Mg m−3 |
Monoclinic, Cc | Mo Kα radiation, λ = 0.71073 Å |
Hall symbol: C -2yc | Cell parameters from 4866 reflections |
a = 14.344 (2) Å | θ = 2.8–28.5° |
b = 25.993 (5) Å | µ = 0.12 mm−1 |
c = 6.7047 (10) Å | T = 100 K |
β = 117.472 (2)° | Rectangular prism, colorless |
V = 2217.8 (6) Å3 | 0.49 × 0.41 × 0.34 mm |
Z = 4 |
Bruker APEX CCD area-detector diffractometer | 2433 independent reflections |
Radiation source: fine-focus sealed tube | 2354 reflections with I > 2σ(I) |
Graphite monochromator | Rint = 0.076 |
phi and ω scans | θmax = 27.0°, θmin = 1.8° |
Absorption correction: multi-scan (SADABS; Sheldrick, 1996) | h = −18→18 |
Tmin = 0.95, Tmax = 0.96 | k = −33→32 |
12173 measured reflections | l = −8→8 |
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)] = 0.047 | Hydrogen site location: inferred from neighbouring sites |
wR(F2) = 0.104 | H atoms treated by a mixture of independent and constrained refinement |
S = 1.08 | w = 1/[σ2(Fo2) + (0.0394P)2 + 2.5063P] where P = (Fo2 + 2Fc2)/3 |
2433 reflections | (Δ/σ)max < 0.001 |
343 parameters | Δρmax = 0.33 e Å−3 |
8 restraints | Δρmin = −0.25 e Å−3 |
C9H6O6·3C5H5NO | V = 2217.8 (6) Å3 |
Mr = 495.44 | Z = 4 |
Monoclinic, Cc | Mo Kα radiation |
a = 14.344 (2) Å | µ = 0.12 mm−1 |
b = 25.993 (5) Å | T = 100 K |
c = 6.7047 (10) Å | 0.49 × 0.41 × 0.34 mm |
β = 117.472 (2)° |
Bruker APEX CCD area-detector diffractometer | 2433 independent reflections |
Absorption correction: multi-scan (SADABS; Sheldrick, 1996) | 2354 reflections with I > 2σ(I) |
Tmin = 0.95, Tmax = 0.96 | Rint = 0.076 |
12173 measured reflections |
R[F2 > 2σ(F2)] = 0.047 | 8 restraints |
wR(F2) = 0.104 | H atoms treated by a mixture of independent and constrained refinement |
S = 1.08 | Δρmax = 0.33 e Å−3 |
2433 reflections | Δρmin = −0.25 e Å−3 |
343 parameters |
Experimental. Spectroscopic data for the title compound: IR (KBr, cm-1): 3442, 3103, 3050, 1704, 1690, 1624, 1613, 1468, 1282, 1193, 1094, 1024. |
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 | ||
N1 | 0.5716 (2) | 0.74048 (12) | 0.7948 (5) | 0.0185 (7) | |
H1A | 0.5074 (9) | 0.7479 (18) | 0.734 (7) | 0.028* | |
N2 | 0.7381 (2) | 0.23549 (13) | −0.0482 (5) | 0.0212 (7) | |
H2A | 0.6809 (18) | 0.2201 (16) | −0.086 (8) | 0.032* | |
N3 | 0.1812 (2) | 0.06645 (12) | 0.3136 (5) | 0.0183 (6) | |
H3A | 0.191 (3) | 0.0665 (17) | 0.199 (4) | 0.027* | |
O1 | 0.0316 (2) | 0.39495 (9) | 0.3690 (5) | 0.0200 (5) | |
H1' | 0.031 (4) | 0.3628 (2) | 0.355 (8) | 0.030* | |
O2 | 0.2044 (2) | 0.38226 (10) | 0.5822 (5) | 0.0214 (6) | |
O3 | −0.00333 (19) | 0.63687 (10) | 0.3527 (4) | 0.0196 (6) | |
H3' | −0.053 (2) | 0.6581 (13) | 0.294 (7) | 0.029* | |
O4 | −0.11698 (19) | 0.57121 (9) | 0.2541 (4) | 0.0164 (5) | |
O5 | 0.43466 (18) | 0.53127 (10) | 0.7273 (4) | 0.0183 (5) | |
H5' | 0.4927 (17) | 0.5446 (16) | 0.755 (8) | 0.027* | |
O6 | 0.3814 (2) | 0.61071 (10) | 0.7524 (5) | 0.0218 (6) | |
O7 | 0.8839 (2) | 0.71094 (10) | 1.1439 (4) | 0.0180 (5) | |
O8 | 1.02950 (19) | 0.29837 (9) | 0.2960 (4) | 0.0183 (5) | |
O9 | 0.11946 (18) | 0.06361 (10) | 0.8481 (4) | 0.0152 (5) | |
C1 | 0.1406 (3) | 0.46845 (14) | 0.5090 (6) | 0.0129 (7) | |
C2 | 0.0532 (3) | 0.50081 (13) | 0.4269 (5) | 0.0113 (6) | |
H2 | −0.0156 | 0.4866 | 0.3620 | 0.014* | |
C3 | 0.0669 (3) | 0.55406 (14) | 0.4403 (6) | 0.0127 (7) | |
C4 | 0.1686 (3) | 0.57493 (13) | 0.5353 (6) | 0.0127 (7) | |
H4 | 0.1783 | 0.6112 | 0.5452 | 0.015* | |
C5 | 0.2549 (3) | 0.54226 (13) | 0.6147 (5) | 0.0125 (7) | |
C6 | 0.2412 (3) | 0.48950 (13) | 0.6015 (6) | 0.0136 (7) | |
H6 | 0.3008 | 0.4675 | 0.6558 | 0.016* | |
C7 | 0.1295 (3) | 0.41098 (14) | 0.4918 (6) | 0.0150 (7) | |
C8 | −0.0277 (3) | 0.58794 (13) | 0.3392 (6) | 0.0124 (7) | |
C9 | 0.3641 (3) | 0.56526 (13) | 0.7065 (6) | 0.0134 (7) | |
C10 | 0.6414 (3) | 0.77853 (13) | 0.8312 (6) | 0.0146 (7) | |
H10 | 0.6164 | 0.8119 | 0.7733 | 0.017* | |
C11 | 0.7469 (3) | 0.77035 (14) | 0.9492 (6) | 0.0160 (7) | |
H11 | 0.7947 | 0.7979 | 0.9756 | 0.019* | |
C12 | 0.7854 (3) | 0.72007 (14) | 1.0328 (6) | 0.0156 (7) | |
C13 | 0.7089 (3) | 0.68087 (13) | 0.9850 (6) | 0.0161 (7) | |
H13 | 0.7308 | 0.6467 | 1.0352 | 0.019* | |
C14 | 0.6033 (3) | 0.69193 (15) | 0.8667 (6) | 0.0182 (7) | |
H14 | 0.5527 | 0.6655 | 0.8355 | 0.022* | |
C15 | 0.7479 (3) | 0.28586 (15) | 0.0073 (6) | 0.0203 (8) | |
H15 | 0.6867 | 0.3060 | −0.0321 | 0.024* | |
C16 | 0.8446 (3) | 0.30826 (14) | 0.1192 (6) | 0.0188 (7) | |
H16 | 0.8495 | 0.3439 | 0.1542 | 0.023* | |
C17 | 0.9382 (3) | 0.27898 (14) | 0.1843 (6) | 0.0163 (7) | |
C18 | 0.9227 (3) | 0.22593 (14) | 0.1212 (7) | 0.0195 (8) | |
H18 | 0.9820 | 0.2044 | 0.1594 | 0.023* | |
C19 | 0.8238 (3) | 0.20564 (15) | 0.0069 (6) | 0.0216 (8) | |
H19 | 0.8153 | 0.1703 | −0.0341 | 0.026* | |
C20 | 0.0841 (3) | 0.07837 (14) | 0.2819 (6) | 0.0189 (8) | |
H20 | 0.0307 | 0.0861 | 0.1349 | 0.023* | |
C21 | 0.0613 (3) | 0.07946 (14) | 0.4590 (6) | 0.0183 (7) | |
H21 | −0.0070 | 0.0890 | 0.4347 | 0.022* | |
C22 | 0.1399 (3) | 0.06629 (13) | 0.6804 (6) | 0.0142 (7) | |
C23 | 0.2420 (3) | 0.05643 (13) | 0.7041 (6) | 0.0162 (7) | |
H23 | 0.2985 | 0.0498 | 0.8488 | 0.019* | |
C24 | 0.2592 (3) | 0.05641 (13) | 0.5203 (6) | 0.0178 (7) | |
H24 | 0.3276 | 0.0492 | 0.5386 | 0.021* |
U11 | U22 | U33 | U12 | U13 | U23 | |
N1 | 0.0100 (15) | 0.0280 (17) | 0.0156 (15) | 0.0043 (13) | 0.0042 (13) | −0.0001 (13) |
N2 | 0.0156 (16) | 0.0321 (19) | 0.0161 (15) | −0.0092 (13) | 0.0075 (13) | −0.0042 (13) |
N3 | 0.0239 (17) | 0.0187 (15) | 0.0168 (16) | −0.0008 (12) | 0.0133 (14) | 0.0001 (12) |
O1 | 0.0166 (13) | 0.0125 (11) | 0.0273 (14) | −0.0030 (10) | 0.0070 (11) | −0.0028 (11) |
O2 | 0.0153 (13) | 0.0174 (13) | 0.0278 (14) | 0.0012 (10) | 0.0068 (11) | 0.0000 (11) |
O3 | 0.0109 (12) | 0.0159 (12) | 0.0276 (14) | 0.0039 (10) | 0.0050 (11) | 0.0045 (11) |
O4 | 0.0122 (12) | 0.0176 (12) | 0.0200 (13) | −0.0002 (10) | 0.0080 (10) | 0.0008 (10) |
O5 | 0.0093 (12) | 0.0201 (13) | 0.0260 (14) | −0.0011 (10) | 0.0086 (11) | −0.0021 (11) |
O6 | 0.0125 (12) | 0.0207 (14) | 0.0291 (15) | −0.0026 (10) | 0.0069 (11) | −0.0036 (11) |
O7 | 0.0101 (12) | 0.0183 (13) | 0.0212 (13) | −0.0004 (9) | 0.0035 (10) | 0.0010 (10) |
O8 | 0.0121 (12) | 0.0149 (12) | 0.0237 (13) | −0.0007 (9) | 0.0047 (11) | −0.0006 (10) |
O9 | 0.0113 (12) | 0.0231 (13) | 0.0121 (12) | −0.0027 (10) | 0.0062 (10) | −0.0014 (10) |
C1 | 0.0130 (17) | 0.0189 (17) | 0.0074 (15) | −0.0004 (13) | 0.0051 (13) | −0.0004 (12) |
C2 | 0.0080 (15) | 0.0178 (16) | 0.0078 (15) | −0.0014 (12) | 0.0033 (12) | −0.0016 (12) |
C3 | 0.0148 (16) | 0.0178 (17) | 0.0074 (15) | 0.0003 (13) | 0.0066 (13) | −0.0011 (13) |
C4 | 0.0149 (17) | 0.0137 (16) | 0.0098 (15) | −0.0011 (12) | 0.0059 (13) | 0.0002 (13) |
C5 | 0.0131 (16) | 0.0191 (17) | 0.0054 (14) | 0.0003 (13) | 0.0043 (13) | 0.0003 (13) |
C6 | 0.0113 (16) | 0.0179 (17) | 0.0113 (15) | 0.0057 (13) | 0.0048 (13) | 0.0021 (13) |
C7 | 0.0144 (17) | 0.0181 (17) | 0.0133 (15) | −0.0016 (13) | 0.0072 (14) | −0.0002 (13) |
C8 | 0.0100 (16) | 0.0173 (16) | 0.0110 (16) | 0.0005 (13) | 0.0058 (13) | −0.0001 (13) |
C9 | 0.0123 (17) | 0.0157 (17) | 0.0099 (16) | −0.0004 (12) | 0.0032 (13) | 0.0012 (12) |
C10 | 0.0179 (17) | 0.0166 (17) | 0.0116 (15) | 0.0062 (13) | 0.0088 (13) | 0.0015 (13) |
C11 | 0.0176 (18) | 0.0166 (16) | 0.0159 (16) | −0.0035 (14) | 0.0095 (14) | −0.0022 (13) |
C12 | 0.0137 (17) | 0.0227 (18) | 0.0094 (16) | 0.0010 (14) | 0.0045 (14) | −0.0018 (13) |
C13 | 0.0185 (18) | 0.0120 (16) | 0.0171 (17) | 0.0014 (13) | 0.0076 (14) | 0.0016 (13) |
C14 | 0.0181 (18) | 0.0208 (18) | 0.0161 (17) | −0.0020 (14) | 0.0082 (15) | −0.0021 (14) |
C15 | 0.0180 (18) | 0.029 (2) | 0.0142 (18) | 0.0038 (15) | 0.0078 (15) | 0.0010 (15) |
C16 | 0.0192 (19) | 0.0183 (17) | 0.0205 (18) | 0.0005 (14) | 0.0106 (16) | −0.0013 (15) |
C17 | 0.0183 (18) | 0.0180 (17) | 0.0141 (17) | −0.0040 (14) | 0.0089 (14) | 0.0003 (14) |
C18 | 0.0186 (19) | 0.0179 (18) | 0.025 (2) | 0.0008 (14) | 0.0128 (16) | 0.0012 (15) |
C19 | 0.028 (2) | 0.0199 (19) | 0.0206 (18) | −0.0080 (15) | 0.0146 (17) | −0.0044 (15) |
C20 | 0.0232 (19) | 0.0206 (18) | 0.0116 (16) | −0.0058 (14) | 0.0070 (14) | 0.0006 (14) |
C21 | 0.0116 (17) | 0.0217 (18) | 0.0212 (18) | −0.0010 (13) | 0.0074 (14) | −0.0010 (15) |
C22 | 0.0175 (17) | 0.0133 (16) | 0.0157 (17) | −0.0064 (13) | 0.0109 (14) | −0.0040 (13) |
C23 | 0.0160 (17) | 0.0167 (17) | 0.0152 (17) | −0.0009 (14) | 0.0067 (14) | 0.0004 (14) |
C24 | 0.0157 (17) | 0.0146 (17) | 0.0248 (19) | −0.0022 (14) | 0.0108 (15) | 0.0004 (14) |
N1—C10 | 1.347 (5) | C4—H4 | 0.9500 |
N1—C14 | 1.352 (5) | C5—C6 | 1.382 (5) |
N1—H1A | 0.8400 (12) | C5—C9 | 1.517 (5) |
N2—C15 | 1.351 (5) | C6—H6 | 0.9500 |
N2—C19 | 1.353 (5) | C10—C11 | 1.363 (5) |
N2—H2A | 0.8400 (11) | C10—H10 | 0.9500 |
N3—C24 | 1.345 (5) | C11—C12 | 1.429 (5) |
N3—C20 | 1.345 (5) | C11—H11 | 0.9500 |
N3—H3A | 0.8400 (11) | C12—C13 | 1.421 (5) |
O1—C7 | 1.325 (4) | C13—C14 | 1.377 (5) |
O1—H1' | 0.8400 (11) | C13—H13 | 0.9500 |
O2—C7 | 1.216 (4) | C14—H14 | 0.9500 |
O3—C8 | 1.311 (4) | C15—C16 | 1.365 (5) |
O3—H3' | 0.8400 (11) | C15—H15 | 0.9500 |
O4—C8 | 1.217 (4) | C16—C17 | 1.425 (5) |
O5—C9 | 1.301 (4) | C16—H16 | 0.9500 |
O5—H5' | 0.8400 (12) | C17—C18 | 1.429 (5) |
O6—C9 | 1.217 (4) | C18—C19 | 1.369 (5) |
O7—C12 | 1.280 (4) | C18—H18 | 0.9500 |
O8—C17 | 1.275 (4) | C19—H19 | 0.9500 |
O9—C22 | 1.288 (4) | C20—C21 | 1.370 (5) |
C1—C2 | 1.394 (5) | C20—H20 | 0.9500 |
C1—C6 | 1.394 (5) | C21—C22 | 1.431 (5) |
C1—C7 | 1.501 (5) | C21—H21 | 0.9500 |
C2—C3 | 1.395 (5) | C22—C23 | 1.421 (5) |
C2—H2 | 0.9500 | C23—C24 | 1.364 (5) |
C3—C4 | 1.404 (5) | C23—H23 | 0.9500 |
C3—C8 | 1.492 (5) | C24—H24 | 0.9500 |
C4—C5 | 1.389 (5) | ||
C10—N1—C14 | 121.4 (3) | C10—C11—C12 | 119.6 (3) |
C10—N1—H1A | 118 (3) | C10—C11—H11 | 120.2 |
C14—N1—H1A | 120 (3) | C12—C11—H11 | 120.2 |
C15—N2—C19 | 121.0 (3) | O7—C12—C13 | 121.9 (3) |
C15—N2—H2A | 120 (3) | O7—C12—C11 | 121.4 (3) |
C19—N2—H2A | 117 (3) | C13—C12—C11 | 116.7 (3) |
C24—N3—C20 | 121.1 (3) | C14—C13—C12 | 120.6 (3) |
C24—N3—H3A | 122 (3) | C14—C13—H13 | 119.7 |
C20—N3—H3A | 117 (3) | C12—C13—H13 | 119.7 |
C7—O1—H1' | 110 (3) | N1—C14—C13 | 120.0 (3) |
C8—O3—H3' | 118 (3) | N1—C14—H14 | 120.0 |
C9—O5—H5' | 113 (3) | C13—C14—H14 | 120.0 |
C2—C1—C6 | 119.8 (3) | N2—C15—C16 | 121.0 (3) |
C2—C1—C7 | 121.7 (3) | N2—C15—H15 | 119.5 |
C6—C1—C7 | 118.4 (3) | C16—C15—H15 | 119.5 |
C1—C2—C3 | 119.9 (3) | C15—C16—C17 | 121.0 (3) |
C1—C2—H2 | 120.0 | C15—C16—H16 | 119.5 |
C3—C2—H2 | 120.0 | C17—C16—H16 | 119.5 |
C2—C3—C4 | 119.9 (3) | O8—C17—C16 | 122.4 (3) |
C2—C3—C8 | 119.0 (3) | O8—C17—C18 | 122.2 (3) |
C4—C3—C8 | 121.0 (3) | C16—C17—C18 | 115.4 (3) |
C5—C4—C3 | 119.6 (3) | C19—C18—C17 | 121.1 (3) |
C5—C4—H4 | 120.2 | C19—C18—H18 | 119.4 |
C3—C4—H4 | 120.2 | C17—C18—H18 | 119.4 |
C6—C5—C4 | 120.5 (3) | N2—C19—C18 | 120.5 (3) |
C6—C5—C9 | 120.4 (3) | N2—C19—H19 | 119.7 |
C4—C5—C9 | 119.1 (3) | C18—C19—H19 | 119.7 |
C5—C6—C1 | 120.3 (3) | N3—C20—C21 | 120.8 (3) |
C5—C6—H6 | 119.8 | N3—C20—H20 | 119.6 |
C1—C6—H6 | 119.8 | C21—C20—H20 | 119.6 |
O2—C7—O1 | 123.8 (3) | C20—C21—C22 | 120.4 (3) |
O2—C7—C1 | 122.3 (3) | C20—C21—H21 | 119.8 |
O1—C7—C1 | 113.9 (3) | C22—C21—H21 | 119.8 |
O4—C8—O3 | 124.6 (3) | O9—C22—C23 | 122.0 (3) |
O4—C8—C3 | 122.8 (3) | O9—C22—C21 | 122.1 (3) |
O3—C8—C3 | 112.6 (3) | C23—C22—C21 | 115.9 (3) |
O6—C9—O5 | 125.1 (3) | C24—C23—C22 | 120.4 (3) |
O6—C9—C5 | 122.4 (3) | C24—C23—H23 | 119.8 |
O5—C9—C5 | 112.5 (3) | C22—C23—H23 | 119.8 |
N1—C10—C11 | 121.6 (3) | N3—C24—C23 | 121.3 (3) |
N1—C10—H10 | 119.2 | N3—C24—H24 | 119.4 |
C11—C10—H10 | 119.2 | C23—C24—H24 | 119.4 |
C6—C1—C2—C3 | −0.8 (5) | C14—N1—C10—C11 | −2.5 (5) |
C7—C1—C2—C3 | −178.1 (3) | N1—C10—C11—C12 | 1.4 (5) |
C1—C2—C3—C4 | 0.3 (5) | C10—C11—C12—O7 | 179.9 (3) |
C1—C2—C3—C8 | 176.4 (3) | C10—C11—C12—C13 | 0.3 (5) |
C2—C3—C4—C5 | 0.2 (5) | O7—C12—C13—C14 | 179.5 (3) |
C8—C3—C4—C5 | −175.8 (3) | C11—C12—C13—C14 | −1.0 (5) |
C3—C4—C5—C6 | −0.2 (5) | C10—N1—C14—C13 | 1.8 (5) |
C3—C4—C5—C9 | 177.0 (3) | C12—C13—C14—N1 | 0.0 (5) |
C4—C5—C6—C1 | −0.2 (5) | C19—N2—C15—C16 | 0.5 (5) |
C9—C5—C6—C1 | −177.5 (3) | N2—C15—C16—C17 | −1.1 (5) |
C2—C1—C6—C5 | 0.8 (5) | C15—C16—C17—O8 | −177.4 (3) |
C7—C1—C6—C5 | 178.1 (3) | C15—C16—C17—C18 | 0.9 (5) |
C2—C1—C7—O2 | −172.4 (3) | O8—C17—C18—C19 | 178.1 (3) |
C6—C1—C7—O2 | 10.2 (5) | C16—C17—C18—C19 | −0.2 (5) |
C2—C1—C7—O1 | 7.9 (5) | C15—N2—C19—C18 | 0.2 (6) |
C6—C1—C7—O1 | −169.4 (3) | C17—C18—C19—N2 | −0.4 (6) |
C2—C3—C8—O4 | 3.5 (5) | C24—N3—C20—C21 | −1.5 (5) |
C4—C3—C8—O4 | 179.5 (3) | N3—C20—C21—C22 | −2.0 (6) |
C2—C3—C8—O3 | −176.4 (3) | C20—C21—C22—O9 | −175.4 (3) |
C4—C3—C8—O3 | −0.4 (4) | C20—C21—C22—C23 | 4.8 (5) |
C6—C5—C9—O6 | −168.8 (3) | O9—C22—C23—C24 | 175.8 (3) |
C4—C5—C9—O6 | 13.9 (5) | C21—C22—C23—C24 | −4.3 (5) |
C6—C5—C9—O5 | 11.8 (4) | C20—N3—C24—C23 | 2.0 (5) |
C4—C5—C9—O5 | −165.5 (3) | C22—C23—C24—N3 | 1.1 (5) |
D—H···A | D—H | H···A | D···A | D—H···A |
O1—H1′···O8i | 0.84 | 1.72 | 2.555 (3) | 173 |
O3—H3′···O7ii | 0.84 | 1.70 | 2.489 (3) | 156 |
O5—H5′···O9iii | 0.84 | 1.70 | 2.531 (4) | 170 |
N1—H1A···O7iv | 0.84 | 1.91 | 2.712 (4) | 158 |
N2—H2A···O8v | 0.84 | 2.00 | 2.817 (4) | 165 |
N3—H3A···O9vi | 0.84 | 2.09 | 2.825 (4) | 146 |
C14—H14···O6 | 0.95 | 2.67 | 3.596 (5) | 166 |
C19—H19···O2vii | 0.95 | 2.48 | 3.034 (5) | 117 |
C24—H24···O4viii | 0.95 | 2.45 | 3.067 (6) | 123 |
C13—H13···O9iii | 0.95 | 2.63 | 3.270 (4) | 125 |
C10—H10···O3ix | 0.95 | 2.42 | 3.073 (5) | 126 |
C16—H16···O1x | 0.95 | 2.68 | 3.307 (4) | 124 |
C19—H19···O6xi | 0.95 | 2.57 | 3.314 (6) | 135 |
C20—H20···O6xii | 0.95 | 2.55 | 3.499 (4) | 176 |
C23—H23···O4xiii | 0.95 | 2.48 | 3.310 (4) | 147 |
Symmetry codes: (i) x−1, y, z; (ii) x−1, y, z−1; (iii) x+1/2, y+1/2, z; (iv) x−1/2, −y+3/2, z−1/2; (v) x−1/2, −y+1/2, z−1/2; (vi) x, y, z−1; (vii) x+1/2, −y+1/2, z−1/2; (viii) x+1/2, y−1/2, z; (ix) x+1/2, −y+3/2, z+1/2; (x) x+1, y, z; (xi) x+1/2, y−1/2, z−1; (xii) x−1/2, y−1/2, z−1; (xiii) x+1/2, y−1/2, z+1. |
D—H···A | D—H | H···A | D···A | D—H···A |
O1—H1'···O8i | 0.84 | 1.72 | 2.555 (3) | 173 |
O3—H3'···O7ii | 0.84 | 1.70 | 2.489 (3) | 156 |
O5—H5'···O9iii | 0.84 | 1.70 | 2.531 (4) | 170 |
N1—H1A···O7iv | 0.84 | 1.91 | 2.712 (4) | 158 |
N2—H2A···O8v | 0.84 | 2.00 | 2.817 (4) | 165 |
N3—H3A···O9vi | 0.84 | 2.09 | 2.825 (4) | 146 |
C14—H14···O6 | 0.95 | 2.67 | 3.596 (5) | 166 |
C19—H19···O2vii | 0.95 | 2.48 | 3.034 (5) | 117 |
C24—H24···O4viii | 0.95 | 2.45 | 3.067 (6) | 123 |
C13—H13···O9iii | 0.95 | 2.63 | 3.270 (4) | 125 |
C10—H10···O3ix | 0.95 | 2.42 | 3.073 (5) | 126 |
C16—H16···O1x | 0.95 | 2.68 | 3.307 (4) | 124 |
C19—H19···O6xi | 0.95 | 2.57 | 3.314 (6) | 135 |
C20—H20···O6xii | 0.95 | 2.55 | 3.499 (4) | 176 |
C23—H23···O4xiii | 0.95 | 2.48 | 3.310 (4) | 147 |
Symmetry codes: (i) x−1, y, z; (ii) x−1, y, z−1; (iii) x+1/2, y+1/2, z; (iv) x−1/2, −y+3/2, z−1/2; (v) x−1/2, −y+1/2, z−1/2; (vi) x, y, z−1; (vii) x+1/2, −y+1/2, z−1/2; (viii) x+1/2, y−1/2, z; (ix) x+1/2, −y+3/2, z+1/2; (x) x+1, y, z; (xi) x+1/2, y−1/2, z−1; (xii) x−1/2, y−1/2, z−1; (xiii) x+1/2, y−1/2, z+1. |
Acknowledgements
This work was supported financially by the Universidad Autónoma de Sinaloa (PROFAPI 2012/048). The authors are also grateful to the Autonomous State University of Morelos (CIQ-UAEM) for access to the X-ray diffraction facilities of the Chemical Research Center.
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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 engineering and design of novel materials via non-covalent synthesis has developed as a very attractive and potential area of research because of its importance in molecular recognition (Aakeröy et al., 2010; Li et al., 2014), pharmaceutical chemistry (Karki et al., 2009) and materials chemistry (Yan et al., 2012). Aromatic carboxylic acids form reliable supramolecular synthons for the construction of novel organic networks by hydrogen bonding and π–π interactions (Desiraju, 1995), and numerous studies have focused on hydrogen bonding between carboxylic acids and pyridine derivatives (Bhogala et al., 2005; Shattock et al. 2008; Yu, 2012). Herein, we report on the solid-state structure of a 1:3 co-crystal formed between benzene-1,3,5-tricarboxylic acid and pyridin-2-ol.
The asymmetric unit of the title compound contains one benzene-1,3,5-tricarboxylic acid and three pyridin-2-ol molecules in the zwitterion form (Fig. 1). In the benzene-1,3,5-tricarboxylic acid (BTA) molecule, the mean planes of the three carboxyl groups are twisted by 3.9 (2), 9.3 (2) and 13.3 (2)° relative to the benzene ring mean plane.
In the crystal lattice, the BTA molecules and two of the three independent zwitterionic pyridine-2ol entities are linked through O—H···-O and N+—H···-O hydrogen bonds into two-dimensional hydrogen bonded layers parallel to (10-1) (see Table 1 and Fig. 2). These two-dimensional sheets are stacked through π–π interactions along c and interpenetrated by one-dimensional hydrogen bonded chains formed by the third group of independent pyridin-2-ol molecules, through N+—H···-O hydrogen bonds, giving an overall three-dimensional hydrogen bonded skeleton (Table 1 and Fig. 3). The supramolecular network is further accomplished by C—H···O hydrogen bonds (Table 1). Strong π–π interactions are formed between the BTA molecules [Cg1···Cg1i = 3.536 (2) Å; Cg1 centroid of ring C1—C6; symmetry code: (i) x, -y+1, z - 1/2]. There and also weaker π–π interactions present involving two of the three independent pyridin-2-ol entities [Cg2···Cg3ii = 3.921 (2) and Cg2···Cg3iii = 3.948 (3) Å; Cg2 centroid of ring N1/C10—C14, Cg3 centroid of ring N2/C15—C19; symmetry codes:(ii) x, -y+1, z + 3/2; (iii) x, -y+1, z+1/2].