organic compounds
4,4′-Bipyridine–2-(carboxymethylsulfanyl)pyridine-3-carboxylic acid (1/1)
aZhejiang Key Laboratory for Reactive Chemistry on Solid Surfaces, Institute of Physical Chemistry, Zhejiang Normal University, Jinhua, Zhejiang 321004, People's Republic of China
*Correspondence e-mail: sky37@zjnu.edu.cn
In the title 10H8N2·C8H7NO4S, the formate group is coplanar with the pyridyl ring of the acid [dihedral angle = 6.2 (7)°], while the carboxymethylsulfanyl group makes a C—S—C—C torsion angle of 70.2 (1)° with the pyridine ring. The dihedral angle between the pyridyl rings of the 4,4′-bipyridine molecule is 27.4 (1)°. The acid and the 4,4′-bipyridine molecules are involved in hydrogen bonding via carboxylic O and pyridyl N atoms. The structure is further consolidated by intermolecular C—H⋯O hydrogen bonds, generating a three-dimensional network.
CRelated literature
For related structures, see: Wang & Feng (2010); Zhu et al. (2002); Smith & Sagatys (2003).
Experimental
Crystal data
|
Refinement
|
Data collection: APEX2 (Bruker, 2006); cell SAINT (Bruker, 2006); data reduction: SAINT; program(s) used to solve structure: SHELXS97 (Sheldrick, 2008); program(s) used to refine structure: SHELXL97 (Sheldrick, 2008); molecular graphics: SHELXTL (Sheldrick, 2008); software used to prepare material for publication: SHELXTL.
Supporting information
https://doi.org/10.1107/S1600536810048385/pv2357sup1.cif
contains datablocks I, global. DOI:Structure factors: contains datablock I. DOI: https://doi.org/10.1107/S1600536810048385/pv2357Isup2.hkl
2-(Carboxymethylsulfanyl)pyridine-3-carboxylic acid was prepared according to the literature method (Wang et al., 2010). A mixture of CoCl2.6H2O (0.2379 g, 1.0 mmol), 4,4'-bipyridine (0.0468 g, 0.3 mmol) and 2-(carboxymethylsulfanyl)pyridine-3-carboxylic acid (0.2134 g, 1.0 mmol) was dissolved in 10.0 ml of distilled water and 3.0 ml ethanol at 328 K. The resulting solution was stirred and refluxed under basic condition for 2 h, the mixture was cooled to room temperature and filtered. Single crystals suitable for X-ray diffraction were obtained from the mother liquor by slow evaporation at room temperature for several days.
The carbon-bound H-atoms were positioned geometrically and included in the
using a riding model with C—H = 0.93 and 0.97 Å for aryl and methylene H-atoms and Uiso(H) = 1.2Ueq(C). The oxygen-bound H-atoms was located in a difference Fourier map and refined with the O—H distance restrained to 0.85 (2) Å and Uiso(H) = 1.2Ueq(O).The crystal structures of a number of mercaptonicotinic derivatives have been reported, such as 2-(carboxymethylsulfanyl)pyridine-3-carboxylic acid monohydrate (Wang et al., 2010), bis(3-carboxypyrid-2-yl)disulfide monohydrate (Zhu et al., 2002) and ammonium 2-mercaptopyridine-3-carboxylate monohydrate (Smith et al., 2003). In an attempt to synthesize a cobalt complex with 2-(carboxymethylsulfanyl)pyridine-3-carboxylic acid and 4,4'-bipyridine, we obtained the title compound, (I), unexpectedly. In this article, we report the
of (I).The title compound is composed of 2-(carboxymethylsulfanyl)pyridine-3-carboxylic acid (C8H7NO4S) and 4,4'-bipyridine (C10H8N2) (Fig. 1). In the acid moiety, the formate group is coplanar with the pyridyl ring, while the carboxymethylsulfanyl group is almost vartical to the plane formed by the pyridine ring atoms with torsion angle, C1—S1—C7—C8, 70.2 (1)°. The dihedral angle between the pyridyl rings of the 4,4'-bipyridine molecule is 27.4 (1)°. The acid and the 4,4'-bipyridine molecules are involved in hydrogen bonding via carboxylic O and pyridyl N atoms. The structure is further consolidated by intermolecular hydrogen bonds of type C—H···O (Fig. 2 and Tab. 1).
For related structures, see: Wang et al. (2010); Zhu et al. (2002); Smith et al. (2003)
Data collection: APEX2 (Bruker, 2006); cell
SAINT (Bruker, 2006); data reduction: SAINT (Bruker, 2006); program(s) used to solve structure: SHELXS97 (Sheldrick, 2008); program(s) used to refine structure: SHELXL97 (Sheldrick, 2008); molecular graphics: SHELXTL (Sheldrick, 2008); software used to prepare material for publication: SHELXTL (Sheldrick, 2008).C10H8N2·C8H7NO4S | F(000) = 768 |
Mr = 369.40 | Dx = 1.454 Mg m−3 |
Monoclinic, P21/c | Mo Kα radiation, λ = 0.71073 Å |
Hall symbol: -P 2ybc | Cell parameters from 7490 reflections |
a = 9.3684 (3) Å | θ = 2.3–27.7° |
b = 10.3044 (3) Å | µ = 0.22 mm−1 |
c = 18.2264 (5) Å | T = 296 K |
β = 106.494 (2)° | Block, colourless |
V = 1687.09 (9) Å3 | 0.41 × 0.25 × 0.10 mm |
Z = 4 |
Bruker APEXII area-detector diffractometer | 3927 independent reflections |
Radiation source: fine-focus sealed tube | 3106 reflections with I > 2σ(I) |
Graphite monochromator | Rint = 0.028 |
ω scans | θmax = 27.7°, θmin = 2.3° |
Absorption correction: multi-scan (SADABS; Sheldrick, 1996) | h = −12→12 |
Tmin = 0.935, Tmax = 0.978 | k = −13→13 |
24834 measured reflections | l = −23→23 |
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)] = 0.038 | Hydrogen site location: inferred from neighbouring sites |
wR(F2) = 0.144 | H atoms treated by a mixture of independent and constrained refinement |
S = 1.08 | w = 1/[σ2(Fo2) + (0.1P)2] where P = (Fo2 + 2Fc2)/3 |
3927 reflections | (Δ/σ)max < 0.001 |
241 parameters | Δρmax = 0.27 e Å−3 |
2 restraints | Δρmin = −0.25 e Å−3 |
C10H8N2·C8H7NO4S | V = 1687.09 (9) Å3 |
Mr = 369.40 | Z = 4 |
Monoclinic, P21/c | Mo Kα radiation |
a = 9.3684 (3) Å | µ = 0.22 mm−1 |
b = 10.3044 (3) Å | T = 296 K |
c = 18.2264 (5) Å | 0.41 × 0.25 × 0.10 mm |
β = 106.494 (2)° |
Bruker APEXII area-detector diffractometer | 3927 independent reflections |
Absorption correction: multi-scan (SADABS; Sheldrick, 1996) | 3106 reflections with I > 2σ(I) |
Tmin = 0.935, Tmax = 0.978 | Rint = 0.028 |
24834 measured reflections |
R[F2 > 2σ(F2)] = 0.038 | 2 restraints |
wR(F2) = 0.144 | H atoms treated by a mixture of independent and constrained refinement |
S = 1.08 | Δρmax = 0.27 e Å−3 |
3927 reflections | Δρmin = −0.25 e Å−3 |
241 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 | ||
S1 | 0.58161 (5) | 0.38154 (4) | 0.14705 (2) | 0.04516 (16) | |
O1 | 0.80222 (16) | 0.58013 (13) | −0.00541 (8) | 0.0686 (4) | |
H1B | 0.837 (2) | 0.6539 (17) | 0.0143 (12) | 0.082* | |
O2 | 0.72352 (16) | 0.57771 (12) | 0.09792 (7) | 0.0640 (4) | |
O3 | 0.70285 (16) | 0.13228 (12) | 0.22294 (9) | 0.0705 (4) | |
H3B | 0.740 (2) | 0.0553 (17) | 0.2308 (13) | 0.085* | |
O4 | 0.49171 (15) | 0.02161 (13) | 0.18621 (8) | 0.0722 (4) | |
N1 | 0.52552 (13) | 0.21214 (12) | 0.03258 (7) | 0.0418 (3) | |
C1 | 0.58945 (15) | 0.32661 (14) | 0.05633 (7) | 0.0368 (3) | |
C2 | 0.65886 (15) | 0.40173 (13) | 0.01174 (8) | 0.0382 (3) | |
C3 | 0.65803 (17) | 0.35450 (15) | −0.05940 (9) | 0.0439 (4) | |
H3A | 0.7020 | 0.4022 | −0.0905 | 0.053* | |
C4 | 0.59198 (17) | 0.23668 (16) | −0.08426 (8) | 0.0472 (4) | |
H4A | 0.5906 | 0.2035 | −0.1319 | 0.057* | |
C5 | 0.52829 (17) | 0.17006 (15) | −0.03640 (9) | 0.0453 (4) | |
H5A | 0.4842 | 0.0904 | −0.0530 | 0.054* | |
C6 | 0.73076 (16) | 0.52758 (14) | 0.03952 (8) | 0.0424 (3) | |
C7 | 0.48104 (17) | 0.25100 (16) | 0.17466 (8) | 0.0467 (4) | |
H7A | 0.4508 | 0.2794 | 0.2187 | 0.056* | |
H7B | 0.3909 | 0.2367 | 0.1333 | 0.056* | |
C8 | 0.5588 (2) | 0.12241 (15) | 0.19413 (9) | 0.0475 (4) | |
N2 | −0.08632 (19) | −0.19297 (15) | 0.05293 (10) | 0.0635 (4) | |
N3 | 0.16287 (17) | 0.40694 (14) | 0.23065 (9) | 0.0560 (4) | |
C9 | 0.0353 (2) | −0.18397 (18) | 0.11218 (13) | 0.0652 (5) | |
H9A | 0.0884 | −0.2595 | 0.1296 | 0.078* | |
C10 | −0.1626 (2) | −0.0845 (2) | 0.03031 (12) | 0.0622 (5) | |
H10A | −0.2482 | −0.0888 | −0.0108 | 0.075* | |
C11 | 0.08680 (19) | −0.07012 (17) | 0.14907 (10) | 0.0551 (4) | |
H11A | 0.1739 | −0.0690 | 0.1893 | 0.066* | |
C12 | −0.12119 (17) | 0.03452 (18) | 0.06467 (9) | 0.0529 (4) | |
H12A | −0.1787 | 0.1079 | 0.0472 | 0.064* | |
C13 | 0.00740 (16) | 0.04348 (15) | 0.12563 (9) | 0.0415 (3) | |
C14 | 0.05830 (16) | 0.16981 (15) | 0.16269 (8) | 0.0401 (3) | |
C15 | 0.14430 (19) | 0.17679 (16) | 0.23814 (9) | 0.0500 (4) | |
H15A | 0.1683 | 0.1018 | 0.2675 | 0.060* | |
C16 | 0.02397 (18) | 0.28557 (16) | 0.12271 (10) | 0.0513 (4) | |
H16A | −0.0352 | 0.2859 | 0.0722 | 0.062* | |
C17 | 0.0788 (2) | 0.39998 (17) | 0.15887 (11) | 0.0584 (5) | |
H17A | 0.0554 | 0.4768 | 0.1313 | 0.070* | |
C18 | 0.19387 (19) | 0.29589 (19) | 0.26931 (9) | 0.0558 (4) | |
H18A | 0.2520 | 0.2990 | 0.3200 | 0.067* |
U11 | U22 | U33 | U12 | U13 | U23 | |
S1 | 0.0619 (3) | 0.0338 (2) | 0.0371 (2) | 0.00022 (15) | 0.00974 (18) | −0.00146 (13) |
O1 | 0.0904 (9) | 0.0499 (7) | 0.0768 (9) | −0.0340 (7) | 0.0421 (7) | −0.0215 (7) |
O2 | 0.0957 (9) | 0.0453 (7) | 0.0505 (7) | −0.0223 (6) | 0.0201 (6) | −0.0118 (5) |
O3 | 0.0620 (8) | 0.0418 (7) | 0.0978 (11) | 0.0049 (5) | 0.0069 (7) | 0.0182 (7) |
O4 | 0.0866 (9) | 0.0450 (7) | 0.0837 (9) | −0.0169 (6) | 0.0219 (7) | −0.0054 (6) |
N1 | 0.0473 (7) | 0.0326 (6) | 0.0419 (6) | −0.0030 (5) | 0.0066 (5) | −0.0008 (5) |
C1 | 0.0382 (7) | 0.0311 (7) | 0.0360 (7) | 0.0029 (5) | 0.0021 (5) | 0.0002 (5) |
C2 | 0.0377 (7) | 0.0323 (7) | 0.0402 (7) | 0.0007 (5) | 0.0038 (6) | −0.0013 (6) |
C3 | 0.0503 (8) | 0.0385 (8) | 0.0432 (8) | −0.0029 (6) | 0.0136 (7) | −0.0021 (6) |
C4 | 0.0578 (9) | 0.0420 (9) | 0.0402 (7) | −0.0048 (7) | 0.0113 (6) | −0.0091 (6) |
C5 | 0.0513 (8) | 0.0337 (8) | 0.0446 (8) | −0.0048 (6) | 0.0035 (6) | −0.0057 (6) |
C6 | 0.0441 (7) | 0.0346 (7) | 0.0441 (8) | −0.0022 (6) | 0.0053 (6) | −0.0012 (6) |
C7 | 0.0519 (8) | 0.0475 (9) | 0.0423 (7) | 0.0013 (7) | 0.0159 (6) | 0.0000 (7) |
C8 | 0.0648 (10) | 0.0396 (9) | 0.0400 (8) | −0.0031 (7) | 0.0180 (7) | 0.0010 (6) |
N2 | 0.0739 (10) | 0.0459 (9) | 0.0798 (11) | −0.0249 (7) | 0.0365 (8) | −0.0189 (8) |
N3 | 0.0591 (8) | 0.0457 (8) | 0.0636 (9) | −0.0107 (6) | 0.0180 (7) | −0.0158 (7) |
C9 | 0.0743 (12) | 0.0388 (9) | 0.0883 (14) | −0.0044 (8) | 0.0326 (11) | −0.0061 (9) |
C10 | 0.0542 (10) | 0.0619 (12) | 0.0694 (12) | −0.0208 (8) | 0.0157 (9) | −0.0180 (10) |
C11 | 0.0557 (10) | 0.0412 (9) | 0.0656 (11) | −0.0013 (7) | 0.0129 (8) | −0.0010 (7) |
C12 | 0.0454 (8) | 0.0477 (9) | 0.0611 (10) | −0.0055 (7) | 0.0077 (7) | −0.0079 (8) |
C13 | 0.0412 (7) | 0.0378 (8) | 0.0466 (7) | −0.0066 (6) | 0.0141 (6) | −0.0018 (6) |
C14 | 0.0396 (7) | 0.0361 (8) | 0.0445 (7) | −0.0038 (6) | 0.0114 (6) | −0.0025 (6) |
C15 | 0.0582 (9) | 0.0453 (9) | 0.0437 (8) | −0.0038 (7) | 0.0097 (7) | 0.0010 (7) |
C16 | 0.0546 (9) | 0.0411 (9) | 0.0513 (8) | −0.0014 (7) | 0.0035 (7) | 0.0008 (7) |
C17 | 0.0675 (11) | 0.0355 (9) | 0.0692 (11) | −0.0010 (7) | 0.0143 (9) | 0.0013 (8) |
C18 | 0.0603 (10) | 0.0592 (11) | 0.0447 (8) | −0.0069 (8) | 0.0098 (7) | −0.0095 (8) |
S1—C1 | 1.7688 (14) | N2—C10 | 1.328 (3) |
S1—C7 | 1.7943 (17) | N2—C9 | 1.332 (3) |
O1—C6 | 1.3127 (19) | N3—C17 | 1.324 (2) |
O1—H1B | 0.864 (16) | N3—C18 | 1.332 (2) |
O2—C6 | 1.2023 (19) | C9—C11 | 1.370 (2) |
O3—C8 | 1.305 (2) | C9—H9A | 0.9300 |
O3—H3B | 0.861 (16) | C10—C12 | 1.382 (2) |
O4—C8 | 1.2015 (19) | C10—H10A | 0.9300 |
N1—C5 | 1.3373 (19) | C11—C13 | 1.388 (2) |
N1—C1 | 1.3379 (18) | C11—H11A | 0.9300 |
C1—C2 | 1.408 (2) | C12—C13 | 1.391 (2) |
C2—C3 | 1.383 (2) | C12—H12A | 0.9300 |
C2—C6 | 1.4827 (19) | C13—C14 | 1.482 (2) |
C3—C4 | 1.379 (2) | C14—C15 | 1.384 (2) |
C3—H3A | 0.9300 | C14—C16 | 1.387 (2) |
C4—C5 | 1.372 (2) | C15—C18 | 1.377 (2) |
C4—H4A | 0.9300 | C15—H15A | 0.9300 |
C5—H5A | 0.9300 | C16—C17 | 1.377 (2) |
C7—C8 | 1.505 (2) | C16—H16A | 0.9300 |
C7—H7A | 0.9700 | C17—H17A | 0.9300 |
C7—H7B | 0.9700 | C18—H18A | 0.9300 |
C1—S1—C7 | 100.76 (7) | C17—N3—C18 | 117.10 (15) |
C6—O1—H1B | 107.7 (15) | N2—C9—C11 | 123.95 (18) |
C8—O3—H3B | 108.5 (15) | N2—C9—H9A | 118.0 |
C5—N1—C1 | 117.62 (13) | C11—C9—H9A | 118.0 |
N1—C1—C2 | 122.38 (13) | N2—C10—C12 | 123.33 (17) |
N1—C1—S1 | 116.80 (11) | N2—C10—H10A | 118.3 |
C2—C1—S1 | 120.81 (11) | C12—C10—H10A | 118.3 |
C3—C2—C1 | 117.85 (13) | C9—C11—C13 | 119.21 (16) |
C3—C2—C6 | 120.60 (14) | C9—C11—H11A | 120.4 |
C1—C2—C6 | 121.55 (13) | C13—C11—H11A | 120.4 |
C4—C3—C2 | 120.01 (14) | C10—C12—C13 | 119.28 (16) |
C4—C3—H3A | 120.0 | C10—C12—H12A | 120.4 |
C2—C3—H3A | 120.0 | C13—C12—H12A | 120.4 |
C5—C4—C3 | 117.84 (14) | C11—C13—C12 | 117.19 (14) |
C5—C4—H4A | 121.1 | C11—C13—C14 | 121.72 (13) |
C3—C4—H4A | 121.1 | C12—C13—C14 | 121.08 (14) |
N1—C5—C4 | 124.29 (14) | C15—C14—C16 | 117.39 (14) |
N1—C5—H5A | 117.9 | C15—C14—C13 | 121.31 (14) |
C4—C5—H5A | 117.9 | C16—C14—C13 | 121.29 (13) |
O2—C6—O1 | 122.82 (14) | C18—C15—C14 | 119.29 (15) |
O2—C6—C2 | 122.94 (14) | C18—C15—H15A | 120.4 |
O1—C6—C2 | 114.24 (13) | C14—C15—H15A | 120.4 |
C8—C7—S1 | 117.93 (12) | C17—C16—C14 | 119.04 (15) |
C8—C7—H7A | 107.8 | C17—C16—H16A | 120.5 |
S1—C7—H7A | 107.8 | C14—C16—H16A | 120.5 |
C8—C7—H7B | 107.8 | N3—C17—C16 | 123.77 (17) |
S1—C7—H7B | 107.8 | N3—C17—H17A | 118.1 |
H7A—C7—H7B | 107.2 | C16—C17—H17A | 118.1 |
O4—C8—O3 | 124.16 (16) | N3—C18—C15 | 123.39 (15) |
O4—C8—C7 | 122.06 (17) | N3—C18—H18A | 118.3 |
O3—C8—C7 | 113.72 (14) | C15—C18—H18A | 118.3 |
C10—N2—C9 | 117.01 (15) | ||
C5—N1—C1—C2 | −0.4 (2) | C10—N2—C9—C11 | −1.7 (3) |
C5—N1—C1—S1 | 178.95 (11) | C9—N2—C10—C12 | 0.4 (3) |
C7—S1—C1—N1 | −0.26 (12) | N2—C9—C11—C13 | 1.7 (3) |
C7—S1—C1—C2 | 179.13 (11) | N2—C10—C12—C13 | 0.7 (3) |
N1—C1—C2—C3 | 0.8 (2) | C9—C11—C13—C12 | −0.5 (2) |
S1—C1—C2—C3 | −178.52 (11) | C9—C11—C13—C14 | −179.32 (15) |
N1—C1—C2—C6 | −179.22 (12) | C10—C12—C13—C11 | −0.6 (2) |
S1—C1—C2—C6 | 1.43 (18) | C10—C12—C13—C14 | 178.20 (15) |
C1—C2—C3—C4 | −0.7 (2) | C11—C13—C14—C15 | −27.4 (2) |
C6—C2—C3—C4 | 179.39 (14) | C12—C13—C14—C15 | 153.82 (17) |
C2—C3—C4—C5 | 0.1 (2) | C11—C13—C14—C16 | 151.38 (17) |
C1—N1—C5—C4 | −0.2 (2) | C12—C13—C14—C16 | −27.4 (2) |
C3—C4—C5—N1 | 0.3 (2) | C16—C14—C15—C18 | −1.3 (2) |
C3—C2—C6—O2 | 173.56 (15) | C13—C14—C15—C18 | 177.51 (15) |
C1—C2—C6—O2 | −6.4 (2) | C15—C14—C16—C17 | 1.3 (2) |
C3—C2—C6—O1 | −6.0 (2) | C13—C14—C16—C17 | −177.48 (15) |
C1—C2—C6—O1 | 174.06 (14) | C18—N3—C17—C16 | −0.6 (3) |
C1—S1—C7—C8 | 70.16 (12) | C14—C16—C17—N3 | −0.4 (3) |
S1—C7—C8—O4 | −152.53 (14) | C17—N3—C18—C15 | 0.6 (3) |
S1—C7—C8—O3 | 30.22 (19) | C14—C15—C18—N3 | 0.3 (3) |
D—H···A | D—H | H···A | D···A | D—H···A |
O1—H1B···N2i | 0.86 (2) | 1.79 (2) | 2.6564 (18) | 178 (2) |
O3—H3B···N3ii | 0.86 (2) | 1.82 (2) | 2.6618 (18) | 167 (2) |
C4—H4A···O4iii | 0.93 | 2.55 | 3.213 (2) | 128 |
C15—H15A···O2ii | 0.93 | 2.39 | 3.0664 (19) | 130 |
C18—H18A···o2ii | 0.93 | 2.70 | 3.232 (2) | 117 |
Symmetry codes: (i) x+1, y+1, z; (ii) −x+1, y−1/2, −z+1/2; (iii) −x+1, −y, −z. |
Experimental details
Crystal data | |
Chemical formula | C10H8N2·C8H7NO4S |
Mr | 369.40 |
Crystal system, space group | Monoclinic, P21/c |
Temperature (K) | 296 |
a, b, c (Å) | 9.3684 (3), 10.3044 (3), 18.2264 (5) |
β (°) | 106.494 (2) |
V (Å3) | 1687.09 (9) |
Z | 4 |
Radiation type | Mo Kα |
µ (mm−1) | 0.22 |
Crystal size (mm) | 0.41 × 0.25 × 0.10 |
Data collection | |
Diffractometer | Bruker APEXII area-detector |
Absorption correction | Multi-scan (SADABS; Sheldrick, 1996) |
Tmin, Tmax | 0.935, 0.978 |
No. of measured, independent and observed [I > 2σ(I)] reflections | 24834, 3927, 3106 |
Rint | 0.028 |
(sin θ/λ)max (Å−1) | 0.653 |
Refinement | |
R[F2 > 2σ(F2)], wR(F2), S | 0.038, 0.144, 1.08 |
No. of reflections | 3927 |
No. of parameters | 241 |
No. of restraints | 2 |
H-atom treatment | H atoms treated by a mixture of independent and constrained refinement |
Δρmax, Δρmin (e Å−3) | 0.27, −0.25 |
Computer programs: APEX2 (Bruker, 2006), SAINT (Bruker, 2006), SHELXS97 (Sheldrick, 2008), SHELXL97 (Sheldrick, 2008), SHELXTL (Sheldrick, 2008).
D—H···A | D—H | H···A | D···A | D—H···A |
O1—H1B···N2i | 0.864 (16) | 1.792 (16) | 2.6564 (18) | 178 (2) |
O3—H3B···N3ii | 0.861 (16) | 1.816 (16) | 2.6618 (18) | 167 (2) |
C4—H4A···O4iii | 0.93 | 2.55 | 3.213 (2) | 128.2 |
C15—H15A···O2ii | 0.93 | 2.39 | 3.0664 (19) | 129.8 |
C18—H18A···o2ii | 0.93 | 2.70 | 3.232 (2) | 117.1 |
Symmetry codes: (i) x+1, y+1, z; (ii) −x+1, y−1/2, −z+1/2; (iii) −x+1, −y, −z. |
References
Bruker (2006). APEX2 and SAINT. Bruker AXS Inc., Madison, Wisconsin, USA. Google Scholar
Sheldrick, G. M. (1996). SADABS. University of Göttingen, Germany. Google Scholar
Sheldrick, G. M. (2008). Acta Cryst. A64, 112–122. Web of Science CrossRef CAS IUCr Journals Google Scholar
Smith, G. & Sagatys, D. S. (2003). Acta Cryst. E59, o540–o541. Web of Science CSD CrossRef IUCr Journals Google Scholar
Wang, X.-J. & Feng, Y.-L. (2010). Acta Cryst. E66, o1298. Web of Science CSD CrossRef IUCr Journals Google Scholar
Zhu, J. X., Zhao, Y. J., Hong, M. C., Sun, D. F., Shi, Q. & Chao, R. (2002). Chem. Lett. pp. 484–500. Web of Science CSD CrossRef 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.
The crystal structures of a number of mercaptonicotinic derivatives have been reported, such as 2-(carboxymethylsulfanyl)pyridine-3-carboxylic acid monohydrate (Wang et al., 2010), bis(3-carboxypyrid-2-yl)disulfide monohydrate (Zhu et al., 2002) and ammonium 2-mercaptopyridine-3-carboxylate monohydrate (Smith et al., 2003). In an attempt to synthesize a cobalt complex with 2-(carboxymethylsulfanyl)pyridine-3-carboxylic acid and 4,4'-bipyridine, we obtained the title compound, (I), unexpectedly. In this article, we report the crystal structure of (I).
The title compound is composed of 2-(carboxymethylsulfanyl)pyridine-3-carboxylic acid (C8H7NO4S) and 4,4'-bipyridine (C10H8N2) (Fig. 1). In the acid moiety, the formate group is coplanar with the pyridyl ring, while the carboxymethylsulfanyl group is almost vartical to the plane formed by the pyridine ring atoms with torsion angle, C1—S1—C7—C8, 70.2 (1)°. The dihedral angle between the pyridyl rings of the 4,4'-bipyridine molecule is 27.4 (1)°. The acid and the 4,4'-bipyridine molecules are involved in hydrogen bonding via carboxylic O and pyridyl N atoms. The structure is further consolidated by intermolecular hydrogen bonds of type C—H···O (Fig. 2 and Tab. 1).