organic compounds
4,4′-Bipyridine–2-methoxybenzoic acid (1/2)
aSuzhou Industrial Park Centers for Disease Control and Prevention, Institute of Health Inspection and Supervision, 215021 Suzhou, Jiangsu, People's Republic of China
*Correspondence e-mail: xiaoyan.qian@live.cn
The 10H8N2·2C8H8O3, contains two 2-methoxybenzoic acid molecules and one 4,4′-bipyridine molecule. The 4,4′-bipyridine molecule is disordered over two positions in a 1:1 ratio. In the crystal, the 2-methoxybenzoic acid and 4,4′-bipyridine molecules are connected by intermolecular O—H⋯N hydrogen bonds. The dihedral angle between the carboxy group and its attached ring is 26.823 (2)°.
of the title compound, CRelated literature
For the use and related structures of 2-methoxybenzoic acid in coordination chemistry, see: Vollano et al. (1984); Smith et al. (1986); Li (2005); Andrews et al. (2006); Ren et al. (2006); Zhao et al. (2008); Sharma et al. (2009).
Experimental
Crystal data
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Refinement
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Data collection: APEX2 (Bruker, 2005); cell APEX2; data reduction: SAINT (Bruker, 2005); 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.
Supporting information
10.1107/S1600536812003194/ds2171sup1.cif
contains datablocks global, I. DOI:Structure factors: contains datablock I. DOI: 10.1107/S1600536812003194/ds2171Isup2.hkl
Supporting information file. DOI: 10.1107/S1600536812003194/ds2171Isup3.cml
An ethanol solution (20 ml) of 2-methoxybenzoic acid (0.1 mmol) and 4,4'-bipyridine (0.1 mmol) was heated at 333 K for 2 h. Then the mixture was cooled to room temperature. After two weeks colorless crystals were obtained that were suitable for X-ray diffraction study.
Four C atoms of bipyridyl group are disordered over two sites. The occupancy factors refined to 0.761 (2) and 0.239 (2). H atoms were positioned geometrically and refined as riding groups, with O—H = 0.82 Å, Caromatic—H = 0.93 Å and Cmethyl—H = 0.96 Å and with Uiso(H) = 1.2Ueq(Cmethyl,O) and Uiso(H) = 1.5Ueq(aromatic), respectively.
Data collection: APEX2 (Bruker, 2005); cell
APEX2 (Bruker, 2005); data reduction: SAINT (Bruker, 2005); 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).C10H8N2·2C8H8O3 | F(000) = 484 |
Mr = 460.47 | Dx = 1.313 Mg m−3 |
Monoclinic, P21/c | Mo Kα radiation, λ = 0.71073 Å |
Hall symbol: -P 2ybc | Cell parameters from 2567 reflections |
a = 7.7090 (15) Å | θ = 2.4–23.4° |
b = 25.620 (5) Å | µ = 0.09 mm−1 |
c = 6.3624 (13) Å | T = 298 K |
β = 112.08 (3)° | Block, colourless |
V = 1164.4 (4) Å3 | 0.30 × 0.28 × 0.25 mm |
Z = 2 |
Bruker SMART APEXII CCD diffractometer | 2060 independent reflections |
Radiation source: fine-focus sealed tube | 1540 reflections with I > 2σ(I) |
Graphite monochromator | Rint = 0.088 |
ω scans | θmax = 25.1°, θmin = 2.9° |
Absorption correction: multi-scan (SADABS; Bruker, 2005) | h = −6→9 |
Tmin = 0.972, Tmax = 0.977 | k = −30→29 |
5991 measured reflections | l = −7→7 |
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)] = 0.052 | Hydrogen site location: inferred from neighbouring sites |
wR(F2) = 0.154 | H-atom parameters constrained |
S = 1.06 | w = 1/[σ2(Fo2) + (0.0805P)2 + 0.1072P] where P = (Fo2 + 2Fc2)/3 |
2060 reflections | (Δ/σ)max < 0.001 |
172 parameters | Δρmax = 0.15 e Å−3 |
9 restraints | Δρmin = −0.16 e Å−3 |
C10H8N2·2C8H8O3 | V = 1164.4 (4) Å3 |
Mr = 460.47 | Z = 2 |
Monoclinic, P21/c | Mo Kα radiation |
a = 7.7090 (15) Å | µ = 0.09 mm−1 |
b = 25.620 (5) Å | T = 298 K |
c = 6.3624 (13) Å | 0.30 × 0.28 × 0.25 mm |
β = 112.08 (3)° |
Bruker SMART APEXII CCD diffractometer | 2060 independent reflections |
Absorption correction: multi-scan (SADABS; Bruker, 2005) | 1540 reflections with I > 2σ(I) |
Tmin = 0.972, Tmax = 0.977 | Rint = 0.088 |
5991 measured reflections |
R[F2 > 2σ(F2)] = 0.052 | 9 restraints |
wR(F2) = 0.154 | H-atom parameters constrained |
S = 1.06 | Δρmax = 0.15 e Å−3 |
2060 reflections | Δρmin = −0.16 e Å−3 |
172 parameters |
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 | Occ. (<1) | |
O1 | 0.4229 (2) | 0.58341 (6) | 0.9083 (3) | 0.0771 (5) | |
H1 | 0.3645 | 0.5715 | 0.9816 | 0.116* | |
C1 | 0.4341 (3) | 0.65024 (7) | 0.6614 (3) | 0.0525 (5) | |
O2 | 0.1962 (2) | 0.64201 (7) | 0.8143 (3) | 0.0791 (5) | |
C2 | 0.3393 (3) | 0.68089 (7) | 0.4708 (3) | 0.0562 (5) | |
O3 | 0.1512 (2) | 0.68604 (6) | 0.4068 (2) | 0.0717 (5) | |
C3 | 0.4378 (4) | 0.70402 (9) | 0.3514 (4) | 0.0751 (7) | |
H3 | 0.3747 | 0.7242 | 0.2241 | 0.090* | |
C4 | 0.6271 (4) | 0.69715 (11) | 0.4209 (5) | 0.0877 (8) | |
H4 | 0.6916 | 0.7131 | 0.3408 | 0.105* | |
C5 | 0.7227 (3) | 0.66730 (11) | 0.6053 (6) | 0.0875 (8) | |
H5 | 0.8513 | 0.6627 | 0.6505 | 0.105* | |
C6 | 0.6260 (3) | 0.64391 (9) | 0.7248 (4) | 0.0702 (6) | |
H6 | 0.6912 | 0.6235 | 0.8505 | 0.084* | |
C7 | 0.3370 (3) | 0.62529 (8) | 0.7980 (3) | 0.0545 (5) | |
C8 | 0.0540 (4) | 0.71555 (13) | 0.2045 (4) | 0.0945 (9) | |
H8A | 0.0982 | 0.7509 | 0.2256 | 0.142* | |
H8B | −0.0779 | 0.7151 | 0.1734 | 0.142* | |
H8C | 0.0767 | 0.7004 | 0.0793 | 0.142* | |
N1 | 0.2439 (3) | 0.54252 (7) | 0.1570 (3) | 0.0661 (5) | |
C11 | 0.0512 (3) | 0.50894 (7) | 0.4279 (3) | 0.0556 (5) | |
C9 | 0.3203 (7) | 0.5048 (2) | 0.3112 (9) | 0.0635 (12) | 0.50 |
H9 | 0.4362 | 0.4910 | 0.3277 | 0.076* | 0.50 |
C10 | 0.2284 (7) | 0.48633 (19) | 0.4455 (9) | 0.0616 (11) | 0.50 |
H10 | 0.2804 | 0.4593 | 0.5474 | 0.074* | 0.50 |
C12 | −0.0112 (8) | 0.5490 (2) | 0.2734 (9) | 0.0581 (18)* | 0.50 |
H12 | −0.1225 | 0.5658 | 0.2568 | 0.070* | 0.50 |
C13 | 0.0872 (8) | 0.5649 (3) | 0.1426 (10) | 0.063 (2)* | 0.50 |
H13 | 0.0406 | 0.5923 | 0.0411 | 0.075* | 0.50 |
C9' | 0.2515 (7) | 0.49348 (19) | 0.2343 (9) | 0.0625 (16)* | 0.50 |
H9' | 0.3280 | 0.4698 | 0.1990 | 0.075* | 0.50 |
C10' | 0.1531 (8) | 0.4757 (2) | 0.3634 (9) | 0.0645 (16)* | 0.50 |
H10' | 0.1587 | 0.4407 | 0.4043 | 0.077* | 0.50 |
C12' | 0.0289 (8) | 0.55892 (18) | 0.3415 (9) | 0.0554 (13) | 0.50 |
H12' | −0.0516 | 0.5823 | 0.3710 | 0.066* | 0.50 |
C13' | 0.1266 (8) | 0.57342 (19) | 0.2127 (10) | 0.0599 (14) | 0.50 |
H13' | 0.1112 | 0.6075 | 0.1585 | 0.072* | 0.50 |
U11 | U22 | U33 | U12 | U13 | U23 | |
O1 | 0.0796 (11) | 0.0708 (10) | 0.0986 (12) | 0.0224 (8) | 0.0536 (9) | 0.0295 (9) |
C1 | 0.0532 (11) | 0.0469 (10) | 0.0603 (11) | −0.0023 (8) | 0.0247 (9) | −0.0035 (9) |
O2 | 0.0730 (10) | 0.0971 (12) | 0.0823 (11) | 0.0283 (8) | 0.0465 (8) | 0.0295 (9) |
C2 | 0.0632 (12) | 0.0525 (10) | 0.0581 (11) | 0.0013 (9) | 0.0287 (9) | −0.0044 (9) |
O3 | 0.0667 (9) | 0.0895 (11) | 0.0631 (9) | 0.0218 (7) | 0.0292 (7) | 0.0171 (8) |
C3 | 0.0904 (17) | 0.0689 (14) | 0.0751 (14) | −0.0069 (12) | 0.0413 (13) | 0.0071 (11) |
C4 | 0.0878 (19) | 0.0886 (17) | 0.103 (2) | −0.0228 (14) | 0.0550 (16) | 0.0040 (15) |
C5 | 0.0574 (13) | 0.0915 (18) | 0.121 (2) | −0.0166 (12) | 0.0426 (14) | −0.0042 (17) |
C6 | 0.0533 (12) | 0.0671 (13) | 0.0882 (15) | −0.0044 (10) | 0.0244 (11) | 0.0036 (11) |
C7 | 0.0532 (11) | 0.0563 (11) | 0.0562 (11) | 0.0063 (9) | 0.0231 (9) | 0.0015 (9) |
C8 | 0.0963 (18) | 0.126 (2) | 0.0663 (14) | 0.0422 (16) | 0.0362 (13) | 0.0282 (15) |
N1 | 0.0785 (12) | 0.0605 (10) | 0.0678 (11) | −0.0008 (9) | 0.0373 (9) | 0.0010 (9) |
C11 | 0.0683 (12) | 0.0470 (10) | 0.0550 (11) | −0.0013 (9) | 0.0272 (9) | −0.0049 (8) |
C9 | 0.054 (3) | 0.076 (3) | 0.060 (3) | 0.003 (2) | 0.022 (2) | −0.001 (2) |
C10 | 0.059 (3) | 0.067 (3) | 0.059 (3) | 0.013 (2) | 0.022 (2) | 0.018 (2) |
C12' | 0.072 (3) | 0.042 (2) | 0.055 (3) | −0.005 (2) | 0.028 (2) | −0.010 (2) |
C13' | 0.083 (3) | 0.043 (2) | 0.054 (3) | −0.012 (2) | 0.026 (3) | −0.002 (2) |
O1—C7 | 1.316 (2) | N1—C9' | 1.343 (5) |
O1—H1 | 0.8200 | N1—C9 | 1.345 (4) |
C1—C6 | 1.389 (3) | N1—C13' | 1.346 (5) |
C1—C2 | 1.398 (3) | C11—C10' | 1.325 (6) |
C1—C7 | 1.488 (3) | C11—C12 | 1.377 (6) |
O2—C7 | 1.207 (2) | C11—C12' | 1.378 (5) |
C2—O3 | 1.357 (2) | C11—C10 | 1.448 (4) |
C2—C3 | 1.392 (3) | C11—C11i | 1.490 (4) |
O3—C8 | 1.437 (3) | C9—C10 | 1.382 (5) |
C3—C4 | 1.368 (3) | C9—H9 | 0.9300 |
C3—H3 | 0.9300 | C10—H10 | 0.9300 |
C4—C5 | 1.362 (4) | C12—C13 | 1.381 (7) |
C4—H4 | 0.9300 | C12—H12 | 0.9300 |
C5—C6 | 1.385 (4) | C13—H13 | 0.9300 |
C5—H5 | 0.9300 | C9'—C10' | 1.388 (6) |
C6—H6 | 0.9300 | C9'—H9' | 0.9300 |
C8—H8A | 0.9600 | C10'—H10' | 0.9300 |
C8—H8B | 0.9600 | C12'—C13' | 1.357 (6) |
C8—H8C | 0.9600 | C12'—H12' | 0.9300 |
N1—C13 | 1.309 (6) | C13'—H13' | 0.9300 |
C7—O1—H1 | 109.5 | C10'—C11—C12 | 110.4 (4) |
C6—C1—C2 | 118.00 (18) | C10'—C11—C12' | 118.3 (3) |
C6—C1—C7 | 119.65 (19) | C12—C11—C10 | 114.8 (3) |
C2—C1—C7 | 122.34 (17) | C12'—C11—C10 | 112.0 (3) |
O3—C2—C3 | 122.4 (2) | C10'—C11—C11i | 120.4 (3) |
O3—C2—C1 | 117.74 (17) | C12—C11—C11i | 123.0 (3) |
C3—C2—C1 | 119.9 (2) | C12'—C11—C11i | 121.0 (3) |
C2—O3—C8 | 117.29 (17) | C10—C11—C11i | 122.1 (3) |
C4—C3—C2 | 120.2 (2) | N1—C9—C10 | 120.8 (4) |
C4—C3—H3 | 119.9 | N1—C9—H9 | 119.6 |
C2—C3—H3 | 119.9 | C10—C9—H9 | 119.6 |
C5—C4—C3 | 121.1 (2) | C9—C10—C11 | 120.2 (4) |
C5—C4—H4 | 119.4 | C9—C10—H10 | 119.9 |
C3—C4—H4 | 119.4 | C11—C10—H10 | 119.9 |
C4—C5—C6 | 119.1 (2) | C11—C12—C13 | 121.7 (5) |
C4—C5—H5 | 120.4 | C11—C12—H12 | 119.1 |
C6—C5—H5 | 120.4 | C13—C12—H12 | 119.1 |
C5—C6—C1 | 121.6 (2) | N1—C13—C12 | 122.0 (6) |
C5—C6—H6 | 119.2 | N1—C13—H13 | 119.0 |
C1—C6—H6 | 119.2 | C12—C13—H13 | 119.0 |
O2—C7—O1 | 122.15 (18) | N1—C9'—C10' | 124.5 (5) |
O2—C7—C1 | 124.29 (18) | N1—C9'—H9' | 117.7 |
O1—C7—C1 | 113.52 (17) | C10'—C9'—H9' | 117.7 |
O3—C8—H8A | 109.5 | C11—C10'—C9' | 119.4 (5) |
O3—C8—H8B | 109.5 | C11—C10'—H10' | 120.3 |
H8A—C8—H8B | 109.5 | C9'—C10'—H10' | 120.3 |
O3—C8—H8C | 109.5 | C13'—C12'—C11 | 118.7 (4) |
H8A—C8—H8C | 109.5 | C13'—C12'—H12' | 120.6 |
H8B—C8—H8C | 109.5 | C11—C12'—H12' | 120.6 |
C13—N1—C9' | 110.4 (4) | N1—C13'—C12' | 125.4 (4) |
C13—N1—C9 | 120.3 (4) | N1—C13'—H13' | 117.3 |
C9'—N1—C13' | 113.3 (3) | C12'—C13'—H13' | 117.3 |
C9—N1—C13' | 112.6 (3) | ||
C6—C1—C2—O3 | 178.65 (17) | C10'—C11—C12—C13 | −28.0 (6) |
C7—C1—C2—O3 | −2.3 (3) | C12'—C11—C12—C13 | 88.6 (12) |
C6—C1—C2—C3 | −0.2 (3) | C10—C11—C12—C13 | 1.7 (7) |
C7—C1—C2—C3 | 178.92 (18) | C11i—C11—C12—C13 | 179.7 (4) |
C3—C2—O3—C8 | 1.7 (3) | C9'—N1—C13—C12 | 24.7 (7) |
C1—C2—O3—C8 | −177.1 (2) | C9—N1—C13—C12 | −3.9 (8) |
O3—C2—C3—C4 | −179.2 (2) | C13'—N1—C13—C12 | −77.4 (12) |
C1—C2—C3—C4 | −0.4 (3) | C11—C12—C13—N1 | 0.5 (9) |
C2—C3—C4—C5 | 0.7 (4) | C13—N1—C9'—C10' | −23.9 (7) |
C3—C4—C5—C6 | −0.5 (4) | C9—N1—C9'—C10' | 93.1 (9) |
C4—C5—C6—C1 | −0.1 (4) | C13'—N1—C9'—C10' | −1.4 (7) |
C2—C1—C6—C5 | 0.4 (3) | C12—C11—C10'—C9' | 28.7 (6) |
C7—C1—C6—C5 | −178.7 (2) | C12'—C11—C10'—C9' | 7.6 (7) |
C6—C1—C7—O2 | 151.7 (2) | C10—C11—C10'—C9' | −76.1 (7) |
C2—C1—C7—O2 | −27.4 (3) | C11i—C11—C10'—C9' | −178.2 (4) |
C6—C1—C7—O1 | −26.2 (3) | N1—C9'—C10'—C11 | −3.8 (8) |
C2—C1—C7—O1 | 154.75 (18) | C10'—C11—C12'—C13' | −6.4 (7) |
C13—N1—C9—C10 | 4.8 (8) | C12—C11—C12'—C13' | −78.6 (12) |
C9'—N1—C9—C10 | −70.7 (8) | C10—C11—C12'—C13' | 23.5 (7) |
C13'—N1—C9—C10 | 26.7 (7) | C11i—C11—C12'—C13' | 179.4 (5) |
N1—C9—C10—C11 | −2.5 (9) | C13—N1—C13'—C12' | 89.0 (13) |
C10'—C11—C10—C9 | 86.1 (8) | C9'—N1—C13'—C12' | 2.6 (8) |
C12—C11—C10—C9 | −0.7 (7) | C9—N1—C13'—C12' | −27.3 (8) |
C12'—C11—C10—C9 | −23.2 (7) | C11—C12'—C13'—N1 | 1.2 (10) |
C11i—C11—C10—C9 | −178.8 (4) |
Symmetry code: (i) −x, −y+1, −z+1. |
D—H···A | D—H | H···A | D···A | D—H···A |
O1—H1···N1ii | 0.82 | 1.85 | 2.673 (2) | 177 |
Symmetry code: (ii) x, y, z+1. |
Experimental details
Crystal data | |
Chemical formula | C10H8N2·2C8H8O3 |
Mr | 460.47 |
Crystal system, space group | Monoclinic, P21/c |
Temperature (K) | 298 |
a, b, c (Å) | 7.7090 (15), 25.620 (5), 6.3624 (13) |
β (°) | 112.08 (3) |
V (Å3) | 1164.4 (4) |
Z | 2 |
Radiation type | Mo Kα |
µ (mm−1) | 0.09 |
Crystal size (mm) | 0.30 × 0.28 × 0.25 |
Data collection | |
Diffractometer | Bruker SMART APEXII CCD diffractometer |
Absorption correction | Multi-scan (SADABS; Bruker, 2005) |
Tmin, Tmax | 0.972, 0.977 |
No. of measured, independent and observed [I > 2σ(I)] reflections | 5991, 2060, 1540 |
Rint | 0.088 |
(sin θ/λ)max (Å−1) | 0.596 |
Refinement | |
R[F2 > 2σ(F2)], wR(F2), S | 0.052, 0.154, 1.06 |
No. of reflections | 2060 |
No. of parameters | 172 |
No. of restraints | 9 |
H-atom treatment | H-atom parameters constrained |
Δρmax, Δρmin (e Å−3) | 0.15, −0.16 |
Computer programs: APEX2 (Bruker, 2005), SAINT (Bruker, 2005), SHELXTL (Sheldrick, 2008).
D—H···A | D—H | H···A | D···A | D—H···A |
O1—H1···N1i | 0.82 | 1.85 | 2.673 (2) | 176.9 |
Symmetry code: (i) x, y, z+1. |
References
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Bipyridine is a well known molecule often used as a linker in polymeric coordination complexes. 2-Methoxybenzoic acid is also sometimes used as a common ligand in coordination polymers (Vollano et al., 1984; Smith et al., 1986; Li, 2005; Andrews et al., 2006; Ren et al., 2006; Zhao et al., 2008; Sharma et al., 2009.). The title compound, (I), is a 1:2 cocrystal of the aforementioned linkers. Herewith we present its crystal structure. The asymmetric unit of the title compound (Fig. 1) contains two 2-methoxybenzoic acid molecules and one 4,4'-bipyridine molecule. The dihedral angle of carboxy group to its ring is 26.823 (2)°. The 4,4'-bipyridine molecule is disordered over two positions in a 1:1 ratio. In the crystal structure, the 2-methoxybenzoic acid and 4,4'-bipyridine are held together by intermolecular O—H···N hydrogen bonds.